A walking aid

Abstract

This utility model relates to the field of walking assistance equipment technology, specifically disclosing a walking aid, which includes a wheelchair walking aid body. A box-shaped seat cushion is fixed on the seat of the wheelchair walking aid body, and a cover plate is fixed on the box-shaped seat cushion. A sponge pad is placed on the cover plate, and multiple grooves are formed inside the cover plate. Multiple first cylinders and multiple second cylinders are fixed to the inner wall of the bottom of the box-shaped seat cushion. The multiple first cylinders are respectively located directly below the corresponding grooves, and an air duct is fixed and connected to the bottom of the first cylinder. A pressing head penetrates through the groove and massages the user's buttocks area where they have been sitting for a long time, which can promote blood circulation and reduce bedsores. When the pressing head is not needed for massage, the connecting plate moves up, causing the mounting plate and protrusion to move up. The protrusion can block the groove, so that the cover plate is in a flat state, improving the user's comfort when sitting on the wheelchair walking aid body.

Description

Technical Field

[0001] This utility model relates to the field of walking assistance equipment technology, and in particular to a walking aid. Background Technology

[0002] People who need wheelchairs and walking aids mainly include elderly people with limited mobility and those whose mobility is impaired due to illness or accidents. These individuals may need to use wheelchairs or walking aids to improve their quality of life, ensure safety, and promote independent living. For these people with limited mobility who need to use wheelchairs and walking aids for extended periods, prolonged sitting in the wheelchair or walking aid causes long-term pressure on their buttocks. This prolonged pressure can easily lead to poor local blood circulation, resulting in local ischemia and hypoxia, causing tissue necrosis and the formation of pressure sores. Pressure sores can further adversely affect their health. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies and provide a walking aid that can massage people with mobility impairments who need to use wheelchairs for extended periods and reduce the probability of bedsores.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] This utility model provides a walking aid, including a wheelchair walking aid body. A box-shaped seat cushion is fixed on the seat of the wheelchair walking aid body. A cover plate is fixed on the box-shaped seat cushion. A sponge pad is placed on the cover plate. Multiple grooves are formed in the cover plate. Multiple first cylinders and multiple second cylinders are fixed on the bottom inner wall of the box-shaped seat cushion. The multiple first cylinders are respectively located directly below the corresponding grooves. An air duct is fixed and connected to the bottom of the first cylinder. The end of the air duct away from the first cylinder is fixed and connected to the corresponding second cylinder. A pressing element is provided in the first cylinder that can penetrate through the groove and massage the user. A drive component for controlling the operation of the pressing element is provided in the second cylinder.

[0006] Preferably, the pressing component includes a first piston that is slidably fitted into the first cylinder, a first piston rod is fixed to the top of the first piston, and a pressing head is fixed to the top of the first piston rod.

[0007] Preferably, the drive assembly includes a second piston that is slidably fitted into the second cylinder, a second piston rod and a drive component for driving the second piston are fixed to the top of the second piston, and a spring is provided inside the second cylinder, with the two ends of the spring abutting against the inner wall of the second cylinder and the second piston, respectively.

[0008] Preferably, two first baffles are fixed to the inner wall of the top of the first cylinder, and two second baffles are fixed to the inner wall of the top of the second cylinder.

[0009] Preferably, the diameter of the second cylinder is four to six times the diameter of the first cylinder, and in the normal state, the distance between the top of the second piston rod and the inner wall of the bottom of the box-shaped seat is less than the distance between the top of the pressing head and the inner wall of the bottom of the box-shaped seat.

[0010] Preferably, the box-shaped seat cushion has multiple mounting plates arranged at equal intervals inside, and multiple protrusions are fixed at equal intervals on the top of the mounting plates. The multiple protrusions correspond one-to-one with the multiple grooves to block the grooves, and the multiple mounting plates are connected by connecting plates.

[0011] Preferably, the connecting plate has a rectangular groove in the middle, two guide rods are fixed in the rectangular groove, a threaded cylinder is provided in the rectangular groove, two guide blocks are symmetrically fixed on the outside of the threaded cylinder, the guide rods pass through the corresponding guide blocks, and the guide blocks are slidably engaged with the outer wall of the corresponding guide rods. A screw is rotatably connected inside the box-shaped cushion, the screw passes through the threaded cylinder and is threadedly connected to the threaded cylinder, a motor is installed at the bottom of the box-shaped cushion, one end of the screw is fixed to the output end of the motor, and two vertical plates are fixed inside the box-shaped cushion. Multiple first vertical stroke grooves and inclined grooves are provided in the vertical plates. The mounting plate has a stroke groove and a second vertical stroke groove. The two ends of the inclined stroke groove are respectively connected to the first vertical stroke groove and the second vertical stroke groove. Connecting posts are fixed on both sides of the mounting plate. The connecting posts are slidably fitted in the first vertical stroke groove, the inclined stroke groove, and the second vertical stroke groove. When the connecting post slides in the first vertical stroke groove, the mounting plate is located directly above the pressing head. When the connecting post slides in the inclined stroke groove, the mounting plate moves from directly above the pressing head to directly above the second piston rod. When the connecting post slides in the second vertical stroke groove, the mounting plate is located directly above the second piston rod.

[0012] Preferably, the motor is a servo motor.

[0013] As can be seen from the above technical solutions, this application has the following beneficial effects:

[0014] 1: When the drive component moves the press head upward, it allows the press head to pass through the groove and massage the user's buttocks area where they have been sitting for a long time, which can promote blood circulation and reduce bedsores.

[0015] 2: When the mounting plate moves downward, it squeezes the second piston rod and drives the second piston downward. When the second piston moves downward, the air in the second cylinder is discharged into the first cylinder through the air guide tube. After the first cylinder is inflated, it drives the first piston upward. When the first piston moves upward, it drives the first piston rod, which in turn drives the pressing head upward. During the downward movement of the mounting plate, initially, the mounting plate drives the connecting column to move downward in the first vertical travel groove. When the connecting column moves from the top to the bottom of the first vertical travel groove, the protrusion moves out of the groove. Then, as the mounting plate continues to move downward, when the connecting column moves downward in the inclined travel groove, the mounting plate moves from directly above the pressing head to directly above the second piston rod. At this time, the protrusion no longer blocks the groove, and the mounting plate no longer obstructs the pressing head, making it convenient for the pressing head to pass through the groove and massage the user. When the pressing head is not needed for massage, when the connecting plate moves upward, it drives the mounting plate and the protrusion to move upward. The protrusion can block the groove, so that the cover is in a flat state, improving the user's comfort when sitting on the main body of the wheelchair assistive device. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] Figure 1 A schematic diagram of the structure of a walking aid provided by this utility model;

[0018] Figure 2 for Figure 1 A schematic diagram showing the disassembled structure of the walking aid's sponge pad and cover plate;

[0019] Figure 3 for Figure 1 A schematic diagram showing the internal structure of the box-shaped seat cushion in the walker shown;

[0020] Figure 4 for Figure 1 A schematic diagram of the cross-sectional structure of the box-shaped seat cushion in the walker shown.

[0021] Figure 5 for Figure 4 Schematic diagram of the structure at point A;

[0022] Figure 6 for Figure 4 Schematic diagram of the structure at point B;

[0023] Figure 7 for Figure 1 A schematic diagram showing the disassembled structure of the box-shaped seat and cover in the walker shown;

[0024] Figure 8 for Figure 6 A schematic diagram of the structure at point C.

[0025] Figure Descriptions: 1. Wheelchair walker body; 2. Box-shaped seat cushion; 3. Cover plate; 4. Sponge pad; 5. Groove; 6. Mounting plate; 7. Protrusion; 8. First cylinder; 9. Second cylinder; 10. Air duct; 11. First piston rod; 12. First piston; 13. Pressing head; 14. Second piston rod; 15. Second piston; 16. Spring; 17. First baffle; 18. Second baffle; 19. Connecting plate; 20. Rectangular groove; 21. Guide rod; 22. Threaded cylinder; 23. Guide block; 24. Screw; 25. Vertical plate; 26. Connecting column; 27. First vertical stroke groove; 28. Inclined stroke groove; 29. ​​Second vertical stroke groove; 30. Servo motor. Detailed Implementation

[0026] The following description is exemplary in nature and is not intended to limit the scope, application, or use of this disclosure. It should be understood that in all these figures, the same or similar reference numerals indicate the same or similar parts and features. The figures are merely schematic representations of the concept and principles of embodiments of this disclosure and do not necessarily show the specific dimensions and scale of the various embodiments of this disclosure. Certain details or structures of embodiments of this disclosure may be exaggerated in particular portions of certain figures.

[0027] Reference Figure 1-8 :

[0028] In one embodiment of this utility model, a walking aid is provided, including a wheelchair walking aid body 1. A box-shaped seat cushion 2 is fixed on the seat of the wheelchair walking aid body 1. A cover plate 3 is fixed on the box-shaped seat cushion 2. A sponge pad 4 is placed on the cover plate 3. Multiple grooves 5 are formed in the cover plate 3. Multiple first cylinders 8 and multiple second cylinders 9 corresponding to the first cylinders 8 are fixed to the bottom inner wall of the box-shaped seat cushion 2. The multiple first cylinders 8 are respectively located directly below the corresponding grooves 5. An air duct 10 is fixed and connected to the bottom of the first cylinder 8. The end of the air duct 10 away from the first cylinder 8 is fixed and connected to the corresponding second cylinder 9. A pressing element that can penetrate through the groove 5 and massage the user is provided in the first cylinder 8. A drive component for controlling the operation of the pressing element is provided in the second cylinder 9.

[0029] The pressing component includes a first piston 12 that is slidably fitted inside the first cylinder 8, a first piston rod 11 fixed to the top of the first piston 12, and a pressing head 13 fixed to the top of the first piston rod 11. The driving component includes a second piston 15 that is slidably fitted inside the second cylinder 9, a second piston rod 14 fixed to the top of the second piston 15, and a spring 16 provided inside the second cylinder 9. The two ends of the spring 16 abut against the inner wall of the second cylinder 9 and the second piston 15, respectively.

[0030] Furthermore, two first baffles 17 are fixed to the inner wall of the top of the first cylinder 8, and two second baffles 18 are fixed to the inner wall of the top of the second cylinder 9. The diameter of the second cylinder 9 is four to six times the diameter of the first cylinder 8. In the normal state, the distance between the top of the second piston rod 14 and the inner wall of the bottom of the box-shaped cushion 2 is less than the distance between the top of the pressing head 13 and the inner wall of the bottom of the box-shaped cushion 2. Multiple mounting plates 6 are evenly spaced inside the box-shaped cushion 2. Multiple protrusions 7 are evenly spaced on the top of the mounting plates 6. The multiple protrusions 7 can block the corresponding grooves 5. A connecting plate 19 is fixed together between the multiple mounting plates 6.

[0031] In addition, a rectangular groove 20 is provided in the middle of the connecting plate 19. Two guide rods 21 are fixed in the rectangular groove 20. A threaded cylinder 22 is provided in the rectangular groove 20. Two guide blocks 23 are symmetrically fixed on the outside of the threaded cylinder 22. The guide rods 21 pass through the corresponding guide blocks 23. The guide blocks 23 are slidably engaged with the corresponding guide rods 21. A screw 24 is rotatably connected in the box-shaped cushion 2. The screw 24 passes through the threaded cylinder 22 and is threadedly connected to the threaded cylinder 22. A servo motor 30 is installed at the bottom of the box-shaped cushion 2. One end of the screw 24 is fixed to the output end of the servo motor 30.

[0032] It should be noted that the top of the backrest of the wheelchair walker body 1 is fixed with a sunshade, on which a small camera, infrared sensor, and alarm are installed. The small camera and infrared sensor are used to monitor the road conditions ahead. When there is an obstacle or the person is too close to an obstacle, the alarm immediately issues a voice prompt to remind elderly people with limited mobility or people with mobility difficulties due to illness or accident to avoid it. The sunshade is also equipped with a small lighting device that automatically turns on in low-light environments, thus facilitating walking for elderly people with limited mobility or people with mobility difficulties due to illness or accident. The bottom of the seat of the wheelchair walker body 1 is equipped with a battery and controller, a small camera, infrared sensor, alarm, small lighting device, and servo motor 3. All components 0 are connected to the controller, and the battery provides power to the small camera, infrared sensor, alarm, small lighting device, servo motor 30, controller, and wheelchair assistive device body 1. It is worth noting that the small camera, infrared sensor, alarm, small lighting device, servo motor 30, controller, and battery in this embodiment are all conventional devices known to those skilled in the art and can be selected or customized according to actual needs. In this embodiment, we only use them without modifying their structure and function. Their setting method, installation method, and electrical connection method can be debugged and operated according to the requirements of their instruction manual by those skilled in the art, and will not be described in detail here.

[0033] In addition, two vertical plates 25 are fixed inside the box-shaped seat cushion 2. The vertical plates 25 have multiple first vertical travel grooves 27, inclined travel grooves 28, and second vertical travel grooves 29. The two ends of the inclined travel groove 28 are connected to the first vertical travel groove 27 and the second vertical travel groove 29, respectively. Connecting posts 26 are fixed on both sides of the mounting plate 6. The connecting posts 26 are slidably fitted in the first vertical travel groove 27, inclined travel groove 28, and second vertical travel groove 29. When the connecting posts 26 slide in the first vertical travel groove 27, the mounting plate 6 is located directly above the pressing head 13. When the connecting posts 26 slide in the inclined travel groove 28, the mounting plate 6 moves from directly above the pressing head 13 to directly above the second piston rod 14. When the connecting posts 26 slide in the second vertical travel groove 29, the mounting plate 6 is located directly above the second piston rod 14.

[0034] In use, the sponge pad 4 is laid on the cover plate 3 of the box-shaped seat cushion 2. When elderly people with limited mobility or people with mobility difficulties due to illness or accident sit on the sponge pad 4 for a long time, the servo motor 30 is activated to drive the screw 24 to rotate. When the screw 24 rotates, it drives the threaded cylinder 22 to move downward. When the threaded cylinder 22 moves downward, it drives the connecting plate 19 to move downward. When the connecting plate 19 moves downward, it drives the mounting plate 6 to move downward. When the mounting plate 6 moves downward, it drives the connecting post 26 to move downward within the first vertical travel groove 27. When the connecting post 26 moves from the top of the first vertical travel groove 27 to the bottom of the first vertical travel groove 27, it causes the protrusion 7 to... As the mounting plate 6 moves downward after being removed from the groove 5, the connecting post 26 moves into the inclined stroke groove 28. The connecting post 26 then moves downward within the inclined stroke groove 28. This process causes the mounting plate 6 to move from directly above the pressing head 13 to directly above the second piston rod 14. At the same time, the guide rod 21 slides within the guide block 23, keeping the position of the threaded cylinder 22 unchanged. However, the position of the threaded cylinder 22 within the rectangular groove 20 changes. During the longitudinal downward movement of the connecting plate 19, when the connecting post 26 moves downward within the inclined stroke groove 28, the connecting plate 19 and the mounting plate 6 can also move laterally.

[0035] When the mounting plate 6 moves into the second vertical travel groove 29, the mounting plate 6 and the protrusion 7 are directly above the second piston rod 14. At this time, the protrusion 7 no longer blocks the groove 5, and the mounting plate 6 no longer obstructs the pressing head 13. When the mounting plate 6 continues to move downward, it will squeeze the second piston rod 14 and drive the second piston 15 downward. When the second piston 15 moves downward, it will discharge the air in the second cylinder 9 into the first cylinder 8 through the air guide pipe 10. After the first cylinder 8 is filled with air, it will drive the first piston 12 upward. When the first piston 12 moves upward, it will drive the first piston rod 11 and the pressing head 13 upward, so that the pressing head 13 passes through the groove 5 and massages the user's buttocks area where they have been sitting for a long time. Then, the servo motor 30 drives the screw 24 to rotate in the opposite direction, driving the threaded cylinder 22, the connecting plate 19, and the mounting plate 6 upward. When the mounting plate 6 moves upward, the second piston 13 is driven by the spring 16. 5. The second piston rod 14 moves upward, thereby drawing air from the first cylinder 8 into the second cylinder 9, causing the pressing head 13 to move downward. During the massage process, when the servo motor 30 is activated, the connecting column 26 is controlled to move up and down within the range of the second vertical stroke groove 29, allowing the pressing head 13 to move back and forth to massage the user. Only when the massage is no longer needed will the connecting column 26 be controlled to move upward into the inclined stroke groove 28 and the first vertical stroke groove 27. During this process, the pressing head 13 passes through the groove 5 and massages the user's buttocks area where they have been sitting for a long time, which can promote blood circulation and reduce bedsores. When the pressing head 13 is no longer needed for massage, the connecting plate 19 moves upward, causing the mounting plate 6 and the protrusion 7 to move upward. The protrusion 7 can block the groove 5, making the cover plate 3 flat and improving the user's comfort when sitting on the wheelchair assistive device body 1.

[0036] The exemplary implementation of the solution proposed in this disclosure has been described in detail above with reference to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the spirit of this disclosure, and various combinations can be made to the various technical features and structures proposed in this disclosure without exceeding the protection scope of this disclosure, which is determined by the appended claims.

Claims

1. A walking aid comprising a wheelchair walking aid body (1), characterized in that, A box-shaped seat cushion (2) is fixed on the seat of the wheelchair assistive device body (1). A cover plate (3) is fixed on the box-shaped seat cushion (2). A sponge pad (4) is placed on the cover plate (3). Multiple grooves (5) are opened in the cover plate (3). Multiple first cylinders (8) and multiple second cylinders (9) are fixed on the bottom inner wall of the box-shaped seat cushion (2). The multiple first cylinders (8) are located directly below the corresponding grooves (5). An air duct (10) is fixed and connected to the bottom of the first cylinder (8). The end of the air duct (10) away from the first cylinder (8) is fixed and connected to the corresponding second cylinder (9). A pressing component that can penetrate through the groove (5) and massage the user is provided in the first cylinder (8). A drive component for controlling the pressing component to work is provided in the second cylinder (9).

2. A walking aid according to claim 1, characterised in that The pressing component includes a first piston (12) that is sealed and slidably fitted inside the first cylinder (8), a first piston rod (11) is fixed to the top of the first piston (12), and a pressing head (13) is fixed to the top of the first piston rod (11).

3. A walking aid according to claim 1, characterised in that The drive assembly includes a second piston (15) that is sealed and slidably fitted inside the second cylinder (9) and a drive component that drives the second piston (15) to move. A second piston rod (14) is fixed to the top of the second piston (15). A spring (16) is provided inside the second cylinder (9). The two ends of the spring (16) abut against the inner wall of the second cylinder (9) and the second piston (15) respectively.

4. A walking aid according to claim 1, characterised in that The first cylinder (8) has two first baffles (17) fixed on the top inner wall, and the second cylinder (9) has two second baffles (18) fixed on the top inner wall.

5. A walking aid according to claim 3, characterised in that The diameter of the second cylinder (9) is four to six times the diameter of the first cylinder (8). In normal condition, the distance between the top of the second piston rod (14) and the bottom inner wall of the box-shaped cushion (2) is less than the distance between the top of the pressing head (13) and the bottom inner wall of the box-shaped cushion (2).

6. A walking aid according to claim 3, characterised in that The box-shaped seat cushion (2) is provided with multiple mounting plates (6) at equal intervals. Multiple protrusions (7) are fixed at equal intervals on the top of the mounting plates (6). The multiple protrusions (7) correspond one-to-one with the multiple grooves (5) to block the grooves (5). The multiple mounting plates (6) are connected by a connecting plate (19).

7. A walking aid according to claim 6, characterized in that, A rectangular groove (20) is provided in the middle of the connecting plate (19). Two guide rods (21) are fixed in the rectangular groove (20). A threaded cylinder (22) is provided in the rectangular groove (20). Two guide blocks (23) are symmetrically fixed on the outside of the threaded cylinder (22). The guide rod (21) passes through the corresponding guide block (23). The guide block (23) slides against the outer wall of the corresponding guide rod (21). A screw (24) is rotatably connected in the box-shaped cushion (2). The screw (24) passes through the threaded cylinder (22) and is threadedly connected to the threaded cylinder (22). A motor (30) is installed at the bottom of the box-shaped cushion (2). One end of the screw (24) is fixed to the output end of the motor (30). Two vertical plates (25) are fixed in the box-shaped cushion (2). Multiple first vertical stroke grooves (27) are provided in the vertical plates (25). The inclined stroke groove (28) is connected to the first vertical stroke groove (27) and the second vertical stroke groove (29) at both ends. The mounting plate (6) is fixed with connecting posts (26) on both sides. The connecting posts (26) are slidably fitted in the first vertical stroke groove (27), the inclined stroke groove (28), and the second vertical stroke groove (29). When the connecting posts (26) slide in the first vertical stroke groove (27), the mounting plate (6) is located directly above the pressing head (13). When the connecting posts (26) slide in the inclined stroke groove (28), the mounting plate (6) moves from directly above the pressing head (13) to directly above the second piston rod (14). When the connecting posts (26) slide in the second vertical stroke groove (29), the mounting plate (6) is located directly above the second piston rod (14).

8. A walking aid according to claim 7, characterised in that The motor (30) is a servo motor.

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