A pneumatic type of arm-lifting assist device for the elderly

Abstract

The application relates to a pneumatic arm-lifting standing assisting device for the elderly, which comprises a household seat, a fixed support and a lifting platform; the fixed support plays a role in stabilizing the device and is composed of upper, lower and front three parts; meanwhile, universal wheels are equipped, the convenience and flexibility of movement are increased; the lifting platform is connected to a square steel plate with a connecting rod groove on the upper end of the fixed support through a fourth vertical rod, and is convenient for up and down adjustment; the arm supporting platform comprises an arm supporting plate and a hand soft pad, and provides comfortable support for the arms of the old people; the device realizes stable lifting movement through damping gas springs, the core part comprises a sensor and a controller, the sensor is installed on the arm supporting platform, detects hand pressure data, and transmits the pressure data to the controller through wireless connection; the controller compares the pressure data with a preset condition algorithm, and once the standing condition is met, the standing process is triggered; the application provides convenience for the old people in home living, and has good standing assisting and walking effects.

Description

Technical Field

[0001] This invention belongs to the field of assistive devices for the elderly, and more specifically, relates to a pneumatic arm-lifting assistive device for the elderly to stand up. Background Technology

[0002] A decline in the ability to stand is a common problem among older adults, which can lead to difficulties in their daily lives.

[0003] Currently, there are some assistive devices for the elderly to stand on the market, but most of these devices rely mainly on mechanical structures or electric devices to provide assistance, which may involve complex structures and high energy consumption. Furthermore, most of these devices are simply cushions installed on chairs, limiting their applicability and making it impossible to adjust them according to the elderly person's physical condition and current environment.

[0004] For example, Chinese patent document CN210078089U discloses an assistive sitting cushion for the elderly, and Chinese patent document CN112932824A discloses a sitting-up assistive device and its assistive usage method. Both are cushions that can only be used on a single chair, and cannot be used when the elderly are sitting on other chairs. Another example is Chinese patent document CN217409249U, which discloses an assistive walking device for the elderly. This device relies on an electric device to provide assistive force, and has a complex structure and high energy consumption. Yet another example is Chinese patent document CN112842724A, which discloses an integrated standing and walking assistive device for the elderly. This device is an improvement over the aforementioned devices, using a pneumatic device to provide assistance to the elderly. However, the elderly need to step over the device after standing up to walk, which poses certain safety hazards.

[0005] Therefore, there is a need for an innovative standing aid device that allows the elderly to easily stand up no matter where they are. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a pneumatic arm-lifting assistive device for elderly people to stand up. This device can be installed in front of a chair at home. When an elderly person sits on the chair, applying pressure to the handle of the standing device causes a damping gas spring to push their forearm upwards, thus assisting them in standing. This device requires no electricity, and no grip strength or safety belt is needed during the standing operation; therefore, it can be used even by elderly people with limited hand function.

[0007] A pneumatic lifting arm assistive device for elderly people to stand up includes the following components: a home chair, a fixed bracket, and a lifting platform; in this device, the backrest of the home chair faces the lifting platform, so as to provide stable back support and balance when standing up; the fixed bracket is symmetrically arranged along the central axis of the device to ensure the stability and balance of the entire device; similarly, the lifting platform is also symmetrically arranged along the central axis of the device to provide balanced lifting movement; it should be noted that this invention only describes half of the device, that is, the structure and components of one side.

[0008] The fixed bracket includes an upper end, a lower end, and a front end. The upper end, lower end, and front end of the fixed bracket are all fixed by a rigid connection to ensure the stability and rigidity of the connection.

[0009] The upper end of the fixed bracket includes a first horizontal bar, a first vertical bar, and a second vertical bar. The first vertical bar at the upper end of the fixed bracket is perpendicularly connected to the first horizontal bar at the upper end of the fixed bracket, and the first horizontal bar at the upper end of the fixed bracket is perpendicularly connected to the second vertical bar at the upper end of the fixed bracket. The second vertical bar is parallel to the first vertical bar, forming a stable vertical support structure.

[0010] A square steel plate with a connecting rod groove is welded to the middle of the first vertical rod at the upper end of the fixed bracket and the second vertical rod at the upper end of the fixed bracket. The connecting rod groove is used to connect other components and provides an adjustable connection position.

[0011] The first vertical rod at the upper end of the fixed bracket is connected to the symmetrical vertical rod of the equipment through the front stabilizing link of the fixed bracket, forming a lateral support structure, providing additional stability, and ensuring that the upper end of the fixed bracket remains stable and does not tilt to the sides.

[0012] The lower end of the fixed support includes a second horizontal bar and a third vertical bar. The second horizontal bar at the lower end of the fixed support is vertically connected to the third vertical bar at the lower end of the fixed support and is parallel to the ground. The third vertical bar at the lower end of the fixed support is perpendicular to the ground. By firmly supporting the equipment on the ground, it ensures that the equipment is stable and will not tip over during use.

[0013] The front end of the fixed bracket includes a third crossbar, which is a telescopic connecting rod that can be adjusted according to the width of the chair or the body size of the elderly person.

[0014] The bottom of the third crossbar at the front end of the fixed bracket is equipped with two casters. The casters are connected to the third crossbar at the front end of the fixed bracket through a caster connector. The casters are connected to the caster connector by bolts. The bolts pass through the fixing holes of the connector and the casters, allowing the casters to rotate freely.

[0015] The first and second vertical bars at the upper end of the fixed bracket are vertically connected to the second horizontal bar at the lower end of the fixed bracket, and the second horizontal bar at the lower end of the fixed bracket is vertically connected to the third horizontal bar at the front end of the fixed bracket, ensuring that the equipment will not shake or tilt during use.

[0016] The lifting platform is a liftable support device installed on both sides of the lifting equipment, and is arranged symmetrically along the central axis of the equipment.

[0017] The lifting platform includes a lifting link and a lifting platform support plate. The lifting link is vertically connected to the lifting platform support plate to form a vertical support structure. The lifting link is also vertically connected to a square steel plate with a link groove at the upper end of a fixed bracket, so that the lifting link can be adjusted up and down.

[0018] The lifting platform also includes a damping gas spring, an upper gas spring support plate, and a lower gas spring support plate. The damping gas spring includes a cylinder and a piston, which are bolted to the upper and lower gas spring support plates. The piston is connected to the upper gas spring support plate, and the bottom of the cylinder is connected to the lower gas spring support plate. The damping gas spring provides damping force to control the lifting process of the lifting platform to achieve a smooth standing action.

[0019] The lower gas spring support plate is rigidly welded to the square steel plate with connecting rod groove at the upper end of the fixed bracket, and the upper gas spring support plate is rigidly welded to the lifting platform support plate of the lifting platform, providing stable support and positioning of the damping gas spring.

[0020] The arm support platform includes an arm support plate, which is rigidly welded to the lifting platform to provide a support platform for the elderly to place their arms.

[0021] The arm support platform also includes a hand pad, a back pad, a handle connecting plate, and a handle. The hand pad is located above the arm support plate, providing a soft base to relieve pressure and discomfort in the hands of the elderly. The back pad is connected to the hand pad by adhesive, providing comfortable support and cushioning for the elderly. The handle connecting plate is rigidly welded to the arm support plate, and the handle is fixed to the handle connecting plate with pre-set threaded holes by bolts, providing stable support and grip points for the elderly.

[0022] The hand pads and the back pads have a soft outer material, are filled with sponge, and are surrounded by a textile.

[0023] The outer ring of the grip is wrapped with thermoplastic elastomer (TPE) material, providing a comfortable feel when used.

[0024] The arm support platform also includes a sensor and a controller. The sensor is a pressure sensor installed on the side of the arm support plate to monitor and collect the pressure exerted by the elderly on the arm support plate and transmit the measured pressure data to the controller connected to the sensor in real time.

[0025] The controller is mounted on the lower gas spring support plate. The controller and the sensor communicate via wireless connection technology. The controller receives the pressure data signal transmitted by the sensor via wireless connection, analyzes and processes it, and controls the operation of the damping gas spring. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of a pneumatic arm-lifting assistive device for elderly people to stand up, according to the present invention.

[0027] Figure 2 This is a left view of a pneumatic arm-lifting assistive device for elderly people to stand up, according to the present invention.

[0028] Figure 3 This is a front view of a pneumatic arm-lifting assistive device for elderly people to stand up, according to the present invention.

[0029] Figure 4 This is a detailed drawing of the damping gas spring assembly of a pneumatic arm-lifting assistive device for elderly people to stand up, according to the present invention.

[0030] Specifically, the components are: 1. Home seat; 2. Fixed bracket; 3. Lifting platform; 4. Upper end of fixed bracket; 4-1. First horizontal bar; 4-2. First vertical bar; 4-3. Second vertical bar; 5. Lower end of fixed bracket; 5-1. Second horizontal bar; 5-2. Third vertical bar; 6. Front end of fixed bracket; 6-1. Third horizontal bar; 7. Lifting linkage; 8. Lifting platform support plate; 9. Arm support platform; 10. Arm support plate; 11. Hand grip connecting plate; 12. Hand pad; 13. Back pad; 14. Hand grip; 15. Square steel plate with linkage groove; 16. Sensor; 17. Controller; 18. Damping gas spring; 19. Front stabilizing linkage of fixed bracket; 20. Upper gas spring support plate; 21. Lower gas spring support plate; 22. Casters; 23. Casters connector. Detailed Implementation

[0031] The following detailed description, in conjunction with the accompanying drawings and embodiments, provides a pneumatic arm-lifting assistive device for elderly people to stand up according to the present invention. In the following detailed description, only certain exemplary embodiments of the invention are described by way of illustration. It will be readily apparent to those skilled in the art that various modifications can be made to the described embodiments without departing from the spirit and scope of the invention. Therefore, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

[0032] like Figure 1As shown, the present invention provides a pneumatic lifting arm assistive device for elderly people, including a home chair 1, a fixed bracket 2, and a lifting platform 3. In this device, the backrest of the home chair 1 faces the lifting platform 3, so as to provide stable back support and balance when standing up. The fixed bracket 2 is symmetrically arranged along the central axis of the device to ensure the stability and balance of the entire device. Similarly, the lifting platform 3 is also symmetrically arranged along the central axis of the device to provide balanced lifting movement.

[0033] The fixed bracket 2 includes an upper end 4, a lower end 5, and a front end 6. The upper end 4, the lower end 5, and the front end 6 are all fixed by a rigid connection to ensure the stability and rigidity of the connection.

[0034] The upper end 4 of the fixed support includes a first horizontal bar 4-1, a first vertical bar 4-2, and a second vertical bar 4-3. The first vertical bar 4-2 of the upper end 4 is perpendicularly connected to the first horizontal bar 4-1, and the first horizontal bar 4-1 of the upper end 4 is perpendicularly connected to the second vertical bar 4-3. The second vertical bar 4-3 is parallel to the first vertical bar 4-2, forming a stable vertical support structure. A square steel plate 16 with a connecting rod groove is welded between the first vertical bar 4-2 and the second vertical bar 4-3 of the upper end 4. This connecting rod groove is used to connect other components and provides an adjustable connection position. The first vertical bar 4-2 of the upper end 4 is connected to the symmetrical vertical bar of the equipment through the front stabilizing connecting rod 20 of the fixed support, forming a lateral support structure, providing additional stability, and ensuring that the upper end 4 of the fixed support remains stable and does not tilt to the sides.

[0035] The lower end 5 of the fixed support includes a second horizontal bar 5-1 and a third vertical bar 5-2. The second horizontal bar 5-1 of the lower end 5 of the fixed support is vertically connected to the third vertical bar 5-2 of the lower end 5 of the fixed support and is parallel to the ground. The third vertical bar 5-2 of the lower end 5 of the fixed support is perpendicular to the ground. By firmly supporting the equipment on the ground, it ensures that the equipment is stable and will not fall over during use.

[0036] The front end 6 of the fixed bracket includes a third crossbar 6-1, which is a telescopic connecting rod that can be adjusted according to the width of the chair or the body size of the elderly person. The bottom of the third crossbar 6-1 of the front end 6 of the fixed bracket is equipped with two casters 22. The casters 22 are connected to the third crossbar 6-1 of the front end 6 of the fixed bracket through a caster connector 23. The casters 22 are connected to the caster connector 23 by bolts, which pass through the fixing holes of the caster connector 23 and the casters 22, allowing the casters 22 to rotate freely.

[0037] The first vertical bar 4-2 and the second vertical bar 4-3 at the upper end of the fixed bracket are vertically connected to the second horizontal bar 5-1 at the lower end of the fixed bracket, and the second horizontal bar 5-1 at the lower end of the fixed bracket is vertically connected to the third horizontal bar 6-1 at the front end of the fixed bracket, ensuring that the equipment will not shake or tilt during use.

[0038] The lifting platform 3 is a liftable support device installed on both sides of the lifting equipment and symmetrically arranged along the central axis of the equipment. The lifting platform 3 includes a lifting link 7 and a lifting platform support plate 8. The lifting link 7 of the lifting platform 3 is vertically connected to the lifting platform support plate 8 of the lifting platform 3 to form a vertical support structure. The lifting link 7 of the lifting platform 3 is also vertically connected to a square steel plate 15 with a link groove on the upper end 4 of the fixed bracket, so that the lifting link 7 can be adjusted up and down.

[0039] like Figure 4 As shown, the lifting platform 3 also includes a damping gas spring 18, an upper gas spring support plate 20, and a lower gas spring support plate 21. The damping gas spring 18 includes a cylinder and a piston, which are bolted to the upper gas spring support plate 20 and the lower gas spring support plate 21. The piston is connected to the upper gas spring support plate 20, and the bottom of the cylinder is connected to the lower gas spring support plate 21. The damping gas spring 18 provides damping force to control the lifting process of the lifting platform 3 to achieve a smooth standing action. The lower gas spring support plate 21 is rigidly welded to the square steel plate 15 with connecting rod groove on the upper end 4 of the fixed bracket. The upper gas spring support plate 20 is rigidly welded to the lifting platform support plate 8 of the lifting platform 3, providing stable support and positioning of the damping gas spring 18.

[0040] like Figure 3 As shown, the arm support platform 9 includes an arm support plate 10, which is rigidly welded to the lifting platform 3 to provide a support platform for the elderly to place their arms.

[0041] The arm support platform 9 also includes a hand cushion 12, a back cushion 13, a grip connecting plate 11, and a grip 14. The hand cushion 12 is located above the arm support plate 10, providing a soft base to relieve pressure and discomfort in the hands of the elderly. The back cushion 13 is connected to the hand cushion 12 by adhesive, providing comfortable support and cushioning for the elderly. The grip connecting plate 11 is welded to the arm support plate 10 by rigid connection, and the grip 14 is connected and fixed to the grip connecting plate 11 with pre-set threaded holes by bolts, providing stable support and gripping points for the elderly.

[0042] The hand pad 12 and the back pad 13 have a soft outer material, are filled with sponge, and have a surrounding textile.

[0043] The outer ring of the grip 14 is wrapped with thermoplastic elastomer (TPE) material, which provides a comfortable feel when used.

[0044] like Figure 2 and Figure 3 As shown, the arm support platform 9 also includes a sensor 16 and a controller 17. The sensor 16 is a pressure sensor installed on the side of the arm support plate 10 to monitor and collect the pressure exerted by the elderly on the arm support plate 10, and transmits the measured pressure data to the controller 17 connected to the sensor 16 in real time. The controller 17 is installed on the lower gas spring support plate 21. The controller 17 and the sensor 16 communicate via wireless connection technology. The controller 17 receives the pressure data signal transmitted by the sensor 16 via wireless connection, analyzes and processes it, and controls the operation of the damping gas spring 18.

[0045] Optionally, the controller 17 also has an automatic adjustment function, which is pre-set with an algorithm suitable for elderly people to stand up. It can adjust the air pressure of the damping gas spring 18 in real time by comparing the received pressure data from the sensor 16 and the changes during the standing process with the preset parameters and conditions in the algorithm, and control the movement of the lifting platform 3 to provide the force and speed suitable for elderly people to stand up.

[0046] The specific working process of the pneumatic arm-lifting assistive device for elderly people to stand up according to the present invention is as follows:

[0047] In the initial state, the device is in standby mode. The sensor 16 and controller 17 are connected to the device's wireless WIFI network and are ready to receive instructions and data. At the same time, the elderly person sits in the home chair 1 with their back against the back cushion 13, their hands holding the handles 14 on the arm support plate 10, and their forearms resting on the hand cushions 12 on the arm support plate 10, maintaining a comfortable sitting posture and support.

[0048] In operation, the pressure sensor 16 built into the side of the arm support plate 10 immediately begins to detect pressure data. Once the sensor 16 detects pressure data, it transmits this data to the controller 17 via Wi-Fi. After receiving the pressure data transmitted by the sensor 16, the controller 17 compares the received pressure data with preset standing conditions to determine whether the elderly person has the intention and ability to stand. If the pressure data meets or exceeds the preset conditions, the controller 17 determines that the elderly person has the intention and ability to stand, thereby triggering the standing process. Then, the controller 17 controls the damping gas spring 18 via a signal to release the stored energy of the cylinder, providing lift to assist the elderly person. The elderly person begins to stand up. Simultaneously, the lifting linkage 7 adjusts its height, raising the lifting platform 3 and arm support platform 9 relative to the fixed bracket 2 at an appropriate speed and height according to the elderly person's standing needs and posture. The arm support platform 9 helps the elderly person move upward, providing assistance to help them stand up. The handle connecting plate 11 is connected to the arm support platform, allowing the elderly person to hold the handle 14 for additional support and stability. The controller 17 determines whether the standing process is complete based on changes in pressure data from the sensor 16. If the pressure data is lower than the preset condition, the controller 17 will determine that the elderly person has completed the standing action, thereby stopping the standing process and stopping the movement of the damping gas spring 18 and the lifting linkage 7.

[0049] The preset conditional algorithm of controller 17 includes a series of thresholds and rules, including setting a specific pressure threshold to determine whether the elderly person's hand has applied enough pressure; the specific pressure threshold can be determined based on age and other relevant coefficients through the following principle and calculation process: PT=k*A+b.

[0050] In the above formula, the specific pressure threshold is represented by PT (PressureThreshold); the elderly person's age is represented by A (Age), which is obtained through fingerprint recognition technology integrated on the controller 17; k and b are age adjustment coefficients determined based on multiple collected research and experimental data, used to adjust the specific pressure threshold according to the elderly person's age.

[0051] The above formula means that as people age, a specific stress threshold will also adjust accordingly; the older one gets, the higher the stress threshold will be, because older people's muscle strength and perception will decline, requiring greater pressure to trigger the standing process.

[0052] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A pneumatic lifting arm assistive device for elderly people to stand up, comprising a home chair (1), a fixed bracket (2), and a lifting platform (3); in the device, the backrest of the home chair (1) faces the lifting platform (3) so as to provide stable back support and balance when standing up; the fixed bracket (2) is symmetrically arranged along the central axis of the device to ensure the stability and balance of the entire device; similarly, the lifting platform (3) is also symmetrically arranged along the central axis of the device to provide balanced lifting movement; The fixed bracket (2) includes an upper end (4), a lower end (5), and a front end (6). The upper end (4) includes a first horizontal bar (4-1), a first vertical bar (4-2), and a second vertical bar (4-3). The first vertical bar (4-2) of the upper end (4) is perpendicularly connected to the first horizontal bar (4-1) of the upper end (4), and the first horizontal bar (4-1) of the upper end (4) is perpendicularly connected to the second vertical bar (4-3) of the upper end (4). The second vertical bar (4-3) is parallel to the horizontal bar (4-3). A stable vertical support structure is formed on the first vertical rod (4-2); a square steel plate (15) with a connecting rod groove is welded between the first vertical rod (4-2) and the second vertical rod (4-3) of the upper end (4) of the fixed bracket. The connecting rod groove is used to connect other components and provides an adjustable connection position; the first vertical rod (4-2) of the upper end (4) of the fixed bracket is connected to the vertical rod symmetrical to the equipment through the front end stabilizing connecting rod (19) of the fixed bracket to form a horizontal support structure, providing additional support. Stability is ensured so that the upper end (4) of the fixed support remains stable and does not tilt to either side; the lower end (5) of the fixed support includes a second horizontal bar (5-1) and a third vertical bar (5-2). The second horizontal bar (5-1) of the lower end (5) of the fixed support is vertically connected to the third vertical bar (5-2) of the lower end (5) of the fixed support and is parallel to the ground. The third vertical bar (5-2) of the lower end (5) of the fixed support is perpendicular to the ground. By firmly supporting it on the ground, the equipment is ensured to be stable and not tilt during use; the front end (6) of the fixed support includes a second horizontal bar (5-1) and a third vertical bar (5-2). The third horizontal bar (6-1) at the front end (6) of the fixed bracket is a telescopic connecting rod that can be adjusted according to the width of the chair or the body size of the elderly person; the first vertical bar (4-2) and the second vertical bar (4-3) at the upper end (4) of the fixed bracket are vertically connected to the second horizontal bar (5-1) at the lower end (5) of the fixed bracket, and the second horizontal bar (5-1) at the lower end (5) of the fixed bracket is vertically connected to the third horizontal bar (6-1) at the front end (6) of the fixed bracket, ensuring that the equipment will not shake or tilt during use.

2. The pneumatic arm-lifting assistive device for elderly people to stand up according to claim 1, characterized in that: Two casters (22) are mounted at the bottom of the third crossbar (6-1) at the front end (6) of the fixed bracket. The casters (22) are connected to the third crossbar (6-1) at the front end (6) of the fixed bracket through the caster connector (23). The casters (22) are connected to the caster connector (23) through bolts. The bolts pass through the fixing holes of the caster connector (23) and the casters (22), so that the casters (22) can rotate freely.

3. The pneumatic arm-lifting assistive device for elderly people to stand up according to claim 1, characterized in that: The lifting platform (3) is a liftable support device installed on both sides of the lifting equipment and arranged symmetrically along the central axis of the equipment. The lifting platform (3) includes a lifting link (7) and a lifting platform support plate (8). The lifting link (7) of the lifting platform (3) is vertically connected to the lifting platform support plate (8) of the lifting platform (3) to form a vertical support structure. The lifting link (7) of the lifting platform (3) is also vertically connected to a square steel plate (15) with a link groove on the upper end (4) of the fixed bracket, so that the lifting link (7) can be adjusted up and down.

4. The pneumatic arm-lifting assistive device for elderly people to stand up according to claim 1, characterized in that: The lifting platform (3) also includes a damping gas spring (18), an upper gas spring support plate (20), and a lower gas spring support plate (21). The damping gas spring (18) includes a cylinder and a piston, which are bolted to the upper gas spring support plate (20) and the lower gas spring support plate (21). The piston is connected to the upper gas spring support plate (20), and the bottom of the cylinder is connected to the lower gas spring support plate (21). The damping gas spring (18) provides damping force to control the lifting process of the lifting platform (3) to achieve a smooth standing action. The lower gas spring support plate (21) is rigidly welded to the square steel plate (15) with connecting rod groove on the upper end (4) of the fixed bracket. The upper gas spring support plate (20) is rigidly welded to the lifting platform support plate (8) of the lifting platform (3) to provide stable support and position of the damping gas spring (18).

5. The pneumatic arm-lifting assistive device for elderly people to stand up according to claim 1, characterized in that: It also includes an arm support platform (9); the arm support platform (9) includes an arm support plate (10), which is rigidly welded to the lifting platform (3) to provide a support platform for the elderly to place their arms.

6. A pneumatic arm-lifting assistive device for elderly people to stand up according to claim 5, characterized in that: The arm support platform (9) also includes a hand cushion (12), a back cushion (13), a grip connecting plate (11), and a grip (14). The hand cushion (12) is located above the arm support plate (10) and provides a soft base to relieve pressure and discomfort in the hands of the elderly. The back cushion (13) is connected to the hand cushion (12) by adhesive bonding to provide comfortable support and cushioning for the elderly. The grip connecting plate (11) is welded to the arm support plate (10) by rigid connection. The grip (14) is connected and fixed to the grip connecting plate (11) with pre-set threaded holes by bolts to provide stable support and gripping points for the elderly.

7. A pneumatic arm-lifting assistive device for elderly people to stand up according to claim 5, characterized in that: The arm support platform (9) also includes a sensor (16) and a controller (17). The sensor (16) is a pressure sensor installed on the side of the arm support plate (10) to monitor and collect the pressure of the elderly on the arm support plate (10) and transmit the measured pressure data to the controller (17) connected to the sensor (16) in real time. The controller (17) is installed on the lower gas spring support plate (21). The controller (17) and the sensor (16) communicate through wireless connection technology. The controller (17) receives the pressure data signal transmitted by the sensor (16) through wireless connection, analyzes and processes it, and controls the operation of the damping gas spring (18).

8. A pneumatic arm-lifting assistive device for elderly people to stand up according to claim 7, characterized in that: The controller (17) also has an automatic adjustment function. It has a pre-set algorithm suitable for the elderly to stand up. It can adjust the air pressure of the damping air spring (18) in real time and control the movement of the lifting platform (3) by comparing the received pressure data from the sensor (16) and the changes during the standing process with the preset parameters and conditions in the algorithm, so as to provide the force and speed suitable for the elderly to stand up.

9. A pneumatic arm-lifting assistive device for elderly people to stand up according to claim 6, characterized in that: The hand pad (12) and the back pad (13) have a soft outer material, are filled with sponge, and have a surrounding textile; the outer ring of the grip (14) is wrapped with thermoplastic elastomer TPE material, which is comfortable to use.

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