Yearly Archives: 2025

　　Rechargeable batteries have gradually become a necessity in people’s daily life. My friends, do you know how much safety hazard will be brought about by the irregular operation of electric wheelchair batteries? When the battery is charged for a long time, physical and chemical reactions are easy to occur inside the battery, resulting in a large amount of heat and gas. When the battery is overloaded and charged, it is easy to explode, igniting the plastic parts of the electric vehicle and releasing a large amount of toxic smoke, resulting in casualties and property losses.Besides, we can’t ignore. 電動輪椅 It has injected new vitality into the development of the industry and has far-reaching significance for activating the market. https://www.hohomedical.com/collections/light-weight-wheelchair

　　Pay attention to the following items when charging the battery:

　　1. When charging the electric wheelchair, use the charger adapted to the electric wheelchair, and check whether the rated input voltage of charging is consistent with the power supply voltage. It is forbidden to cover or place the charger on the seat cushion. Unplug the plug on the AC power supply after charging, and then unplug the plug connected to the battery. It is forbidden to connect the charger to the AC power supply for a long time without charging.

　　2. The charging time of the electric wheelchair is suggested to be 6-8 hours. When the charging indicator light changes from red to green, it means that the battery is fully charged. Do not charge the electric wheelchair for a long time, especially in summer, when it is hot and charging for a long time, it is difficult for the charger to dissipate heat and cause combustion. Keep an eye on it when charging.

　　3. When charging the electric wheelchair, check whether the connector is loose, whether the line equipment is aging, and the rubber of the wire is damaged, which may easily lead to short circuit and fire.

　　4. Qualified electric wheelchairs, chargers and batteries produced by manufacturers with production licenses shall be used, and electric wheelchairs and accessories shall not be modified in violation of regulations. It is strictly forbidden to change or modify the charging circuit without permission. If the product or personnel accident occurs as a result, the manufacturer is not responsible.

　　5. Electric wheelchairs should be parked in designated areas, not in stairwells, evacuation passages, and not occupying fire truck passages.

　　6. Do not buy and use some non-standard and over-standard electric wheelchairs, and do not use non-original chargers to charge electric wheelchairs.

　　7. Do not charge the electric wheelchair by private wiring, and do not charge it indoors, in the basement, at the entrance of the building, etc. Avoid charging immediately after driving at high temperature.

　　8. Electric wheelchairs that are not used for a long time should be charged first, and placed after being fully charged, and then the main switch of the circuit should be disconnected.

　　9. Keep a good ventilation environment at the charging place. Do not charge in the sun or wet environment. Be sure to stay away from flammable and explosive materials during charging and storage. Do not expose the charger to outdoor heat sources, such as radiator, fire source and sunlight.

　　10. Do not move the wheelchair while the electric wheelchair is charging.

　　11. Never modify the electric wheelchair, and check and maintain it regularly to prevent problems before they happen.

　　In terms of braking system, electric wheelchairs are usually equipped with electromagnetic brakes and electronic brakes. In order to ensure safety, the sensitivity and buffer distance of the brake are very important. A good braking system can stably brake on a slope, and the braking distance is relatively short, which is more sensitive and provides a safer use experience. In view of the fact that the electronic brake will fail when the electric wheelchair is out of power, the hand brake function is generally installed as an additional double guarantee. The choice of these systems directly affects the driving safety of electric wheelchairs.As it happens, many people are killed 電動輪椅價錢 And bring more benefits, make it flourish, and promote the industry greatly. https://www.hohomedical.com/collections/light-weight-wheelchair

　　Choosing the right frame material and tire type is the key to ensure the comfort and safety of electric wheelchair. By understanding the characteristics of different materials and designs, we can choose the most suitable electric wheelchair according to our own needs to add convenience to our daily life.

　　Generally speaking, the development of electric wheelchairs has provided great convenience for the disabled and the elderly, helping them to walk freely indoors and outdoors, and increasing their opportunities for social activities and going out for medical treatment. Secondly, it provides the ability to move independently. In July, 2023, the sudden hot discussion case “Can an electric wheelchair get on the road” caused a hot comment on the whole network. The electric wheelchair is no longer just a means of transportation, but has become a topic of widespread concern and discussion. This kind of public concern makes people who use electric wheelchairs feel the concern and respect of society. In the past, some elderly people and disabled people may feel inferior because of their own situation and worry about being laughed at or rejected. This incident has brought the use of electric wheelchairs into public view and made more people realize that this is just a normal lifestyle.

　　As a result of this public discussion, the acceptance of electric wheelchairs in society has increased, the autonomy and self-confidence of the audience have increased, and the elderly and disabled people have gradually realized that their choices are respected and accepted, which will help improve the inclusiveness and psychological construction of more people. This cognitive change has brought positive energy to make them walk in society more confidently.

　　The development trend of electric wheelchair and old scooter is portable, and the lighter the electric wheelchair, the more convenient it is. However, there will be some wrong operations when the elderly choose or use them, which will often cause unnecessary problems and avoid unnecessary injuries caused by improper operation.For the immediate pressure, 電動輪椅 With its own coping style, it can break the predicament and usher in a new life through the quality of the product itself. https://www.hohomedical.com/collections/light-weight-wheelchair

　　First, the driving operation is not standardized: the elderly and disabled people sometimes appear in the fast lane and ignore the traffic lights when driving electric wheelchairs and old scooters. This is a very dangerous operation, because the speed of electric wheelchairs and old scooters is very slow, and the speed is generally not more than 10 kilometers per hour. Driving an electric wheelchair scooter on the fast lane will cause traffic congestion, and in the worst case, it will cause a serious traffic accident. You must not drive on the motor vehicle lane, and you should drive on the sidewalk or non-motor vehicle lane.

　　Second, electric wheelchairs and old scooters need daily maintenance, especially before use, the power and tires must be checked, and the welding points of the frame and the tightness of each screw need to be checked every once in a while. Electric scooter had better keep the battery fully charged at any time, and charge it as needed. Frequent power loss will lead to the reduction of power storage capacity. There are still many people who blindly pursue cruising range and driving speed when purchasing electric wheelchairs and old scooters. In reality, it should be chosen according to the user’s normal range of activities. If the range of activities is small, it is not necessary to choose an old scooter with too large battery capacity.

　　Third, in the process of selling electric wheelchairs and elderly scooters, many elderly people often choose portable folding electric wheelchairs for convenience. In fact, this is a serious misconception. We always guide the elderly not to move electric wheelchairs, scooters and so on. Even if it is difficult to pass, it is recommended to get off and pass. If you encounter steps on the road, it is best to ask your family or passers-by for help. It is not recommended for the elderly to move it by themselves, because the lightest folding electric wheelchair weighs about twenty or thirty kilograms. This weight is also very heavy for the elderly, and if you move it by your own strength, it may lead to unnecessary injuries such as waist fractures.

　　There are many choices of seat back cushion and cushion materials for electric wheelchairs in the market, mainly including mesh cotton and honeycomb materials. The choice of these materials will affect the comfort and ventilation of the seat. For example, compared with honeycomb materials, mesh cotton is more breathable and less likely to store heat. A comfortable wheelchair cushion should conform to the contour of human buttocks, providing good support and wrapping.In addition to these aspects, 電動輪椅價錢 The performance in other aspects is also relatively good, which has attracted everyone’s attention and research. https://www.hohomedical.com/collections/light-weight-wheelchair

　　In addition, the cushion also needs to have air permeability and good hygroscopicity to ensure the dryness of the skin surface. Considering that the user’s long-term use of local skin temperature will accelerate the cell metabolism rate, which will make the skin sweat and ulcer when immersed in a humid environment for a long time.

　　The quality of seat back cushion is mainly judged by fabric smoothness, tension and routing details. Laymen can also distinguish the advantages and disadvantages of the seat back cushion by carefully observing these details.

　　With the continuous development of industrial technology, pump equipment plays an increasingly important role in industrial production. In the fields of chemical engineering, medicine, food, etc., pump equipment, as an important tool for conveying media, has a significant impact on production efficiency and quality. In recent years, with the strengthening of environmental awareness and the increasing demand for safety production, enterprises have become more strict in product selection. In the post pandemic era, the global economy is in a downturn, and business operations are facing even more severe challenges. How to reduce costs and increase efficiency, improve production efficiency and product quality has become an urgent problem for enterprises to solve. As one of the important transportation tools, the selection and optimization of pump equipment have also become an important way for enterprises to improve production efficiency and reduce costs.We have every reason to believe. Plating filter It will become the mainstream of the industry and will gradually affect more and more people. http://www.luoyuan108.com/

　　The KG series of coaxial acid alkali resistant pumps we have launched are carefully developed to meet the needs of enterprises. This pump has multiple unique design and technological advantages, which can reduce costs, improve production efficiency, and ensure production safety for chemical enterprises. Let’s learn about the features and advantages of this pump together.

　　01 Product Features

　　The KG series coaxial acid alkali resistant pump is a pump designed for the chemical industry, which has the following characteristics:

　　1. Wide applicability: This pump can be applied to media with various chemical properties, and its applicable temperature is below 85 ≧ for FRPP and PVDF, depending on the different chemical properties. At the same time, choosing different pump body materials can resist strong acids and alkalis, as well as the chemical properties used in fluorination series.

　　2. Unique shaft seal design: adopting Teflon Bellows Seal self cooling type, selecting shaft seal materials Sic, Carbon, Ceramic according to various chemical properties. Compared to other similar products, the shaft seal design of this pump is more unique, which can effectively ensure the service life and operational safety of the pump.

　　3. The rear cover is a combination type: easy to assemble, with no cooling circulation circuit design, and cannot be used idle. The rear cover of the pump adopts a combination design, which is easy to assemble and does not require a cooling circulation circuit, ensuring the safe operation of the pump.

　　4. Low noise: The pump is made of high-quality materials and exquisite craftsmanship, with advantages such as low noise and low vibration. It ensures stable operation of the pump while reducing noise interference during the production process.

　　5. High reliability: The pump adopts advanced production technology and precise mechanical processing, and has undergone multiple rigorous tests and verifications to ensure the reliability and stability of the product.

　　02 Product specifications and parameters

　　03 Advantage Comparison

　　Compared with traditional pumps, the advantages of KG series coaxial acid alkali resistant pumps are:

　　Low noise and low vibration: Designed with advanced fluid analysis technology, the pump’s noise and vibration are minimized, ensuring a quiet and stable production site.

　　Low energy consumption: The design and optimization of pumps can greatly reduce energy consumption, thereby saving energy costs.

　　Long lifespan: The shaft seal of the pump adopts a Teflon Bellows Seal self cooling design, which can greatly extend the service life of the pump.

　　No need for additional cooling circulation circuit: The rear cover of the pump is a combination type, easy to assemble, without a cooling circulation circuit design, and cannot be used idle, making the use of the pump more convenient and reliable.

　　04 Application Fields

　　The KG series coaxial acid alkali resistant pumps are widely used in industries such as chemical, pharmaceutical, electronics, and environmental protection for the transportation, filtration, and circulation of acid alkali liquids. For example:

　　Chemical industry: In fields such as organic synthesis and hydrocarbon cracking, acid-base liquids are inevitable, which requires reliable acid-base pumps for transportation.

　　Pharmaceutical industry: In the process of drug synthesis and formulation, a certain amount of acid-base liquid is required, and the role of acid-base pump is particularly important.

　　Electronics industry: In the production of semiconductors, LCD displays, and other products, various corrosive and electroplating solutions are required. These liquids have strong corrosiveness and volatility, and high-quality corrosion-resistant pumps are needed. The FRPP and PVDF materials of KG series pumps can withstand the corrosion of these chemicals, and adopt a unique Teflon Bellows Seal self cooling shaft seal design, effectively avoiding the damage of chemical corrosion to the pump.

　　Overall, the KG series coaxial acid alkali resistant pumps have the advantages of high efficiency, corrosion resistance, safety, and stability, and are widely used in various industries. Our company will continue to be committed to developing high-quality and efficient pumps, providing high-quality products and services for various industries.

　　Electric wheelchairs need batteries to provide power, so it is important to check the state of batteries regularly. Both lead-acid batteries and lithium batteries have limited service life. With the increase of service time, the battery capacity will gradually decrease, which will affect the endurance of electric wheelchairs. It is generally recommended to check the battery performance every 1.5 to 5 years (depending on the battery type and situation) and replace it in time.From the demand side, 電動輪椅 More in line with the psychological expectations of consumers, willing to pay for the things they like. https://www.hohomedical.com/collections/light-weight-wheelchair

　　02

　　tyre

　　Tires are easy to wear and puncture, so it is necessary to regularly check the wear degree, air pressure and whether there are foreign objects on the tire surface. Damaged or aged tires need to be replaced in time.

　　03

　　Brake system

　　Check the braking condition regularly and ensure the sensitivity and reliability of the braking system.

　　04

　　Motor and drive system

　　Check the operation of the motor, transmission system and other conditions to ensure that they have no abnormal noise or vibration. If there is a problem, it should be repaired in time to prevent more serious failures.

　　05

　　Joystick and control system

　　Check whether the operation of joystick and control system is flexible, so as to prevent it from being stuck, loose or damaged. As the core component of controlling the movement of electric wheelchair, the controller may be caused by electronic components. Failure due to aging, humidity or impact. Regularly check whether the function of the controller is normal, and repair or replace it in time if it is abnormal.

　　06

　　charger

　　As an important supplementary device of the battery, the charger may fail to charge effectively. Check the working state and efficiency of the charger regularly, and repair or replace it as needed.

　　With the continuous development of industrial technology, pump equipment plays an increasingly important role in industrial production. In the fields of chemical engineering, medicine, food, etc., pump equipment, as an important tool for conveying media, has a significant impact on production efficiency and quality. In recent years, with the strengthening of environmental awareness and the increasing demand for safety production, enterprises have become more strict in product selection. In the post pandemic era, the global economy is in a downturn, and business operations are facing even more severe challenges. How to reduce costs and increase efficiency, improve production efficiency and product quality has become an urgent problem for enterprises to solve. As one of the important transportation tools, the selection and optimization of pump equipment have also become an important way for enterprises to improve production efficiency and reduce costs.Besides, we can’t ignore. Chemical filter It has injected new vitality into the development of the industry and has far-reaching significance for activating the market. http://www.luoyuan108.com/

　　The KG series of coaxial acid alkali resistant pumps we have launched are carefully developed to meet the needs of enterprises. This pump has multiple unique design and technological advantages, which can reduce costs, improve production efficiency, and ensure production safety for chemical enterprises. Let’s learn about the features and advantages of this pump together.

　　01 Product Features

　　The KG series coaxial acid alkali resistant pump is a pump designed for the chemical industry, which has the following characteristics:

　　1. Wide applicability: This pump can be applied to media with various chemical properties, and its applicable temperature is below 85 ≧ for FRPP and PVDF, depending on the different chemical properties. At the same time, choosing different pump body materials can resist strong acids and alkalis, as well as the chemical properties used in fluorination series.

　　2. Unique shaft seal design: adopting Teflon Bellows Seal self cooling type, selecting shaft seal materials Sic, Carbon, Ceramic according to various chemical properties. Compared to other similar products, the shaft seal design of this pump is more unique, which can effectively ensure the service life and operational safety of the pump.

　　3. The rear cover is a combination type: easy to assemble, with no cooling circulation circuit design, and cannot be used idle. The rear cover of the pump adopts a combination design, which is easy to assemble and does not require a cooling circulation circuit, ensuring the safe operation of the pump.

　　4. Low noise: The pump is made of high-quality materials and exquisite craftsmanship, with advantages such as low noise and low vibration. It ensures stable operation of the pump while reducing noise interference during the production process.

　　5. High reliability: The pump adopts advanced production technology and precise mechanical processing, and has undergone multiple rigorous tests and verifications to ensure the reliability and stability of the product.

　　02 Product specifications and parameters

　　03 Advantage Comparison

　　Compared with traditional pumps, the advantages of KG series coaxial acid alkali resistant pumps are:

　　Low noise and low vibration: Designed with advanced fluid analysis technology, the pump’s noise and vibration are minimized, ensuring a quiet and stable production site.

　　Low energy consumption: The design and optimization of pumps can greatly reduce energy consumption, thereby saving energy costs.

　　Long lifespan: The shaft seal of the pump adopts a Teflon Bellows Seal self cooling design, which can greatly extend the service life of the pump.

　　No need for additional cooling circulation circuit: The rear cover of the pump is a combination type, easy to assemble, without a cooling circulation circuit design, and cannot be used idle, making the use of the pump more convenient and reliable.

　　04 Application Fields

　　The KG series coaxial acid alkali resistant pumps are widely used in industries such as chemical, pharmaceutical, electronics, and environmental protection for the transportation, filtration, and circulation of acid alkali liquids. For example:

　　Chemical industry: In fields such as organic synthesis and hydrocarbon cracking, acid-base liquids are inevitable, which requires reliable acid-base pumps for transportation.

　　Pharmaceutical industry: In the process of drug synthesis and formulation, a certain amount of acid-base liquid is required, and the role of acid-base pump is particularly important.

　　Electronics industry: In the production of semiconductors, LCD displays, and other products, various corrosive and electroplating solutions are required. These liquids have strong corrosiveness and volatility, and high-quality corrosion-resistant pumps are needed. The FRPP and PVDF materials of KG series pumps can withstand the corrosion of these chemicals, and adopt a unique Teflon Bellows Seal self cooling shaft seal design, effectively avoiding the damage of chemical corrosion to the pump.

　　Overall, the KG series coaxial acid alkali resistant pumps have the advantages of high efficiency, corrosion resistance, safety, and stability, and are widely used in various industries. Our company will continue to be committed to developing high-quality and efficient pumps, providing high-quality products and services for various industries.

　　Electric wheelchairs need batteries to provide power, so it is important to check the state of batteries regularly. Both lead-acid batteries and lithium batteries have limited service life. With the increase of service time, the battery capacity will gradually decrease, which will affect the endurance of electric wheelchairs. It is generally recommended to check the battery performance every 1.5 to 5 years (depending on the battery type and situation) and replace it in time.Therefore, this is the choice 電動輪椅價錢 The reason, there is no denying its positive impact. https://www.hohomedical.com/collections/light-weight-wheelchair

　　02

　　tyre

　　Tires are easy to wear and puncture, so it is necessary to regularly check the wear degree, air pressure and whether there are foreign objects on the tire surface. Damaged or aged tires need to be replaced in time.

　　03

　　Brake system

　　Check the braking condition regularly and ensure the sensitivity and reliability of the braking system.

　　04

　　Motor and drive system

　　Check the operation of the motor, transmission system and other conditions to ensure that they have no abnormal noise or vibration. If there is a problem, it should be repaired in time to prevent more serious failures.

　　05

　　Joystick and control system

　　Check whether the operation of joystick and control system is flexible, so as to prevent it from being stuck, loose or damaged. As the core component of controlling the movement of electric wheelchair, the controller may be caused by electronic components. Failure due to aging, humidity or impact. Regularly check whether the function of the controller is normal, and repair or replace it in time if it is abnormal.

　　06

　　charger

　　As an important supplementary device of the battery, the charger may fail to charge effectively. Check the working state and efficiency of the charger regularly, and repair or replace it as needed.

　　In industries such as pharmaceuticals, biopharmaceuticals, and fine chemicals, filtering raw drug solutions is a crucial step. This stage not only affects the purity and quality of the product, but also relates to the safety and stability of the production process. In order to meet the strict requirements of these industries, based on years of practical experience and comprehensive reference to advanced filtration technologies at home and abroad, we have successfully developed a KTA series chemical liquid filter designed specifically for liquid filtration.Only by working together can we turn chemical pump The value of the play out, the development of the supply market needs. http://www.luoyuan108.com/

　　The characteristics and advantages of this filter lie in its efficient filtration performance, diverse selection of filter materials, and excellent corrosion resistance and sealing performance. These features ensure that the KTA series chemical liquid filters perform excellently in various pharmaceutical, biological, and fine chemical production scenarios.

　　Product Introduction

　　The KTA series chemical liquid filter is a highly versatile filtration device that uses advanced filtration technology to efficiently filter impurities and foreign objects in the liquid, ensuring the purity and safety of the liquid. This product mainly consists of a filter element, a filter housing, and sealing materials, among which the filter element is the core component used to intercept impurities in the drug solution.

　　Product features and advantages

　　1. This series of filters is injection molded from PP, PVDF, and FRPP materials, suitable for filtering most chemical solutions. PP material filters are widely used in the pharmaceutical industry, which have the characteristics of strong corrosion resistance, non toxicity, odorlessness, and high temperature resistance, and can effectively resist the corrosion of most chemical solutions.

　　2. Efficient filtration: The KTA series chemical liquid filter adopts a fine filter screen, which can filter out small particles, bacteria and other impurities in the liquid, ensuring the purity of the liquid.

　　3. The filter materials include filter cartridge lock cap type, pressure plate type, filter paper type, starfruit type, filter tube type, and filter bag type, which can be selected and interchangeable. Different filter materials can adapt to pharmaceutical companies with different industries and filtration needs. For example, filter cartridge lock cap and pressure plate filter materials can filter most of the medicinal liquids, filter paper filter materials can filter high viscosity medicinal liquids, and filter tube filter materials can filter high-temperature medicinal liquids.

　　4. Good sealing performance and easy cleaning: The unique sealing design avoids leakage and ensures the safety of the production process; The filter element is detachable, easy to clean, and can meet the production needs of different enterprises.

　　5. According to customer requirements, the upper and lower plates can be processed into complete sets of PP solid plates to meet the needs of customers in high-pressure environments. This feature makes the KTA series chemical liquid filter more widely used, not only in conventional pharmaceutical and chemical production, but also in processes that require high pressure.

　　Product specifications and parameters

　　Model Number: KTA Chemical Liquid Filter

　　Filter capacity range: 15-430 (L/min)

　　Main materials: PP, PVDF, FRPP

　　Temperature range: 0-70 ＜ C

　　Filtering accuracy: 0.5um-500um

　　Filter material: Universal standard size

　　Sealing material: high-quality rubber

　　Application industry

　　The KTA series chemical liquid filters are widely used in industries such as pharmaceuticals, biological products, and fine chemicals. In these industries, it is mainly used for filtering chemical drugs, biological product culture media, buffer solutions, and other fine chemical raw materials to ensure the purity and safety of materials during the production process.

　　In the pharmaceutical industry, this filter can be used to filter extracts of antibiotics, biochemical drugs, and traditional Chinese medicine.

　　In the bioproducts industry, it can be used to filter materials such as culture media and buffer solutions to ensure the purity and safety of the products.

　　In the fine chemical industry, it can be used to filter various fine chemical raw materials, such as dyes, coatings, and pesticides.

　　The KTA series chemical solution filter is also widely used in the electroplating industry, and can be applied to multiple processes such as electroplating solution filtration, electroplating wastewater treatment, electroplating tank solution circulation filtration, and electroplating additive filtration to ensure the quality and stability of electroplating products. It is an ideal choice for the electroplating industry.

　　In short, the KTA series chemical liquid filters are designed specifically for industries such as pharmaceuticals, biological products, and fine chemicals. It uses a variety of filter materials, which are corrosion-resistant and have good sealing performance, suitable for different filtration needs. Special filter design, easy to clean and maintain. Whether in drug extraction, biological product filtration, or fine chemical production, the KTA series filters can provide solid quality assurance.

　　Choose KTA to bring efficiency improvement and reliable guarantee to your production process. If you are struggling with filtration issues and looking for a high-performance, professional grade chemical liquid filter, then our KTA series is undoubtedly your ideal choice.

　　Wheelchairs are widely used in patients’ rehabilitation training and family life, such as lower limb dysfunction, hemiplegia, paraplegia below the chest and people with mobility difficulties. As patients’ families and rehabilitation therapists, it is very necessary to know the characteristics of wheelchairs, choose the most suitable wheelchairs and use them correctly.precisely because 電動輪椅 The rapid development of, so also brought new opportunities to the industry. https://www.hohomedical.com/collections/light-weight-wheelchair

　　First of all, what harm will an inappropriate wheelchair do to the user?

　　Excessive local compression

　　Form a bad posture

　　Induced scoliosis

　　Causing contracture of joints

　　(What are the unsuitable wheelchairs: the seat is too shallow and the height is not enough; The seat is too wide and the height is not enough)

　　The main parts that wheelchair users bear pressure are ischial tubercle, thigh, popliteal fossa and scapula. Therefore, when choosing a wheelchair, we should pay attention to whether the size of these parts is appropriate to avoid skin wear, abrasions and pressure sores.

　　Let’s talk about the choice of wheelchair, which must be kept in mind!

　　Choice of ordinary wheelchair

　　Seat width

　　Measure the distance between two hips or between two legs when sitting down, and add 5cm, that is, there is a gap of 2.5cm on each side after sitting down. The seat is too narrow, it is difficult to get on and off the wheelchair, and the hip and thigh tissues are compressed; The seat is too wide, it is difficult to sit still, it is inconvenient to operate the wheelchair, the upper limbs are easy to get tired, and it is difficult to get in and out of the gate.

　　Seat length

　　Measure the horizontal distance from the hip to the gastrocnemius of the calf when sitting down, and reduce the measurement result by 6.5cm. The seat is too short, the weight mainly falls on the ischium, and the local pressure is easy to be too much; If the seat is too long, it will compress the popliteal fossa, affect the local blood circulation, and easily irritate the skin of this part. It is better to use a short seat for patients with extremely short thighs or flexion and contracture of hips and knees.

　　Seat height

　　Measure the distance from the heel (or heel) to the popliteal fossa when sitting down, and add 4cm. When placing the pedal, the board surface should be at least 5cm from the ground. The seat is too high for the wheelchair to enter the table; The seat is too low and the ischium bears too much weight.

　　seating washer

　　In order to be comfortable and prevent pressure sores, a seat cushion should be placed on the seat, and foam rubber (5~10cm thick) or gel cushion can be used. To prevent the seat from sinking, a piece of plywood with a thickness of 0.6cm can be placed under the seat cushion.

　　Backrest height

　　The higher the backrest, the more stable it is, and the lower the backrest, the greater the range of motion of the upper body and upper limbs. The so-called low backrest is to measure the distance from the seat surface to the armpit (one arm or two arms extend forward horizontally), and subtract 10cm from this result. High backrest: measure the actual height from the seat surface to the shoulder or back pillow.

　　Handrail height

　　When sitting down, the upper arm is vertical and the forearm is flat on the armrest. Measure the height from the chair surface to the lower edge of the forearm, and add 2.5cm. Proper armrest height helps to maintain correct posture and balance, and can make the upper limbs placed in a comfortable position. The armrest is too high, and the upper arm is forced to lift up, which is easy to fatigue. If the armrest is too low, you need to lean forward to maintain balance, which is not only easy to fatigue, but also may affect your breathing.

　　Other auxiliary parts of wheelchair

　　Designed to meet the special needs of patients, such as increasing the friction surface of the handle, extending the brake, anti-shock device, anti-skid device, armrest mounting arm rest, wheelchair table to facilitate patients to eat and write, etc.