A reclining wheelchair in accordance with ergonomic design
By using a connecting rod mechanism in the wheelchair to drive the swing of the arc-shaped rear cushion and the curved waist rest, and the swing of the arc-shaped push pipe, the pedal mechanism extends forward, solving the problem of hip and sole squeeze caused by the inability to lie comfortably during use by the existing wheelchair, which significantly improves the user experience.
Patent Information
- Application Number
- CN202411890330.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-04-08
AI Technical Summary
When used, existing wheelchairs cannot achieve a comfortable lying position, resulting in poor comfort in use. Especially when lying down and rising, the angle contraction between the backrest and the seat cushion will squeeze the human hips, and the foot mechanism will squeeze the soles of the feet when rising, resulting in discomfort experience.
A reclining wheelchair that conforms to the ergonomic design is designed. It adopts a structure such as a frame, a support frame, a backrest frame and a curved push pipe. The connecting rod mechanism drives the swing of the arc-shaped rear pad and the curved waist back to form an appropriate space to avoid hip squeezing, and the foot mechanism extends forward through the swing of the arc-shaped push pipe to prevent the foot from squeezing.
The sway of the backrest frame makes the arc-shaped rear pad and the arc-shaped waist abutment form an appropriate space to avoid squeezing the hips, and the pedal mechanism extends forward through the swing of the arc-shaped push pipe, preventing the foot from squeezing, which significantly improves the user experience.
Smart Images
Figure CN119770275A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of wheelchairs, in particular to a reclining wheelchair that is ergonomically designed. Background Art
[0002] A wheelchair is a medical device that assists patients in treatment and rehabilitation. People who usually use wheelchairs are those with limited mobility. Most existing wheelchairs can only be used in a single sitting position and cannot be tilted or laid down, making them uncomfortable to use. Although a small number of wheelchairs can be adjusted to allow tilting or laying down, in these tilting or laying down wheelchair structures, when lying down or rising, the angle between the backrest and the seat cushion shrinks, which squeezes the human buttocks. In addition, when the tripod mechanism rises, it only rotates and swings around the fulcrum and cannot extend forward. In actual use, the tripod mechanism will squeeze the sole of the foot during its rise, causing squeezing of the foot and causing an uncomfortable experience. Summary of the invention
[0003] In order to overcome the defects of the prior art, the present invention provides a reclining wheelchair with an ergonomic design, aiming to solve the problems in the prior art.
[0004] The technical solution adopted by the present invention to solve the technical problem is: a reclining wheelchair with ergonomic design, which has a frame, a support frame is integrally arranged above the frame, and is characterized in that a seat cushion is fixedly mounted on the support frame, a backrest frame is mounted on the rear end of the frame, a backrest is mounted on the backrest frame, a swingable arc-shaped rear cushion is arranged at one end of the seat cushion close to the backrest, a swingable arc-shaped lumbar support is arranged at the lower end of the backrest, and the backrest frame is swingably mounted on the frame through a connecting rod mechanism, so that the connecting rod mechanism synchronously drives the arc-shaped rear cushion and the arc-shaped lumbar support to swing; A swingable arc-shaped push tube is installed at the front end of the frame, and a pedal mechanism is hingedly installed on the arc-shaped push tube.
[0005] In the above-mentioned ergonomically designed reclining wheelchair, the connecting rod mechanism includes a U-shaped rod, a curved rod and a linkage rod, a fourth hinge seat is provided at the lower end of the backrest frame, and a fifth hinge seat is provided at the lower rear side of the backrest frame, one end of the U-shaped rod is hinged to the fourth hinge seat, one end of the curved rod is hinged to the fifth hinge seat, and the other end is provided with a first strip hole, and the support frame is respectively provided with a first hinge seat and a second hinge seat, the second hinge seat is located at the rear and lower part of the first hinge seat, the other end of the U-shaped rod is hinged to the first hinge seat, one end of the middle part of the linkage rod is hinged to the second hinge seat, one end of the linkage rod is hinged to the first strip hole, and one end of the first supporting arc rod and the second supporting arc rod are also hinged on the linkage rod, respectively, the first supporting arc rod is connected to the arc lumbar support, the other end of the first supporting arc rod is hinged to the fourth hinge seat, the second supporting arc rod is connected to the arc rear pad, and the other end of the second supporting arc rod is hinged to the first hinge seat.
[0006] In the above-mentioned ergonomically designed reclining wheelchair, the linkage rod includes an intermediate corner section, one end of the intermediate corner section is provided with a rear pad connecting section, and the other end is provided with a backrest connecting section, a first hinge hole corresponding to the second hinge seat is provided between the intermediate corner section and the rear pad connecting section, a second hinge hole hinged to the first supporting arc rod is provided between the intermediate corner section and the backrest connecting section, a third hinge hole hinged to the second supporting arc rod is provided at the end of the rear pad connecting section, and a third hinge hole hinged to the first strip hole is provided at the end of the backrest connecting section.
[0007] In the above-mentioned ergonomically designed reclining wheelchair, a convex block is provided on the lower side of one end of the second supporting arc rod away from the first hinge seat, a second strip hole is formed on the convex block, and the third hinge hole is hinged to the second strip hole.
[0008] In the above-mentioned ergonomically designed reclining wheelchair, a third hinge seat is provided at the rear end of the frame, one end of the gas rod is hinged to the third hinge seat, and the other end of the gas rod is hinged to the fifth hinge seat.
[0009] In the above-mentioned reclining wheelchair with ergonomic design, the seat cushion and the arc-shaped rear cushion are connected via a first rotating shaft, and the backrest and the arc-shaped lumbar support are connected via a second rotating shaft.
[0010] In the above-mentioned ergonomically designed reclining wheelchair, the front ends of the frame and the support frame are connected by a vertical rod, the upper end of the vertical rod is provided with a plug hole and a socket is installed in it, the lower end of the socket is installed with a fixing seat through a first connecting rod, the fixing seat is clamped and installed on the vertical rod, one end of the arc-shaped push tube is hinged to the socket, and the other end is hinged to the footrest mechanism.
[0011] In the above-mentioned ergonomically designed reclining wheelchair, the footrest mechanism includes a footrest rod, one end of the footrest rod is hinged to the other end of the arc-shaped push tube, and a footrest is installed at the other end, a sixth hinge seat is arranged on the first connecting rod, and a seventh hinge seat is arranged on the side of the footrest rod close to the first connecting rod, a second connecting rod is hinged on the lower side surface of the arc-shaped push tube, the lower end of the second connecting rod is hinged to one end of the curved arm, the middle part of the curved arm is hinged to the sixth hinge seat, the other end of the curved arm is hinged to a connecting arm, a third strip hole is arranged at the end of the connecting arm away from the curved arm, a foot rod is also hinged to the middle part of the curved arm, one side of the foot rod is hinged to the third strip hole, an L-shaped rod is hinged on the seventh hinge seat, and the L-shaped rod is passed through the foot rod so that the foot rod can move on the L-shaped rod.
[0012] In the above-mentioned ergonomically designed reclining wheelchair, a front wheel is installed on the lower side of the front end of the frame, an auxiliary wheel is installed on the rear end, and the rear end of the support frame is connected to the frame through a reinforcement block, and the rear wheel is installed on the reinforcement block.
[0013] The beneficial effects of the present invention are as follows: during the downward swinging of the backrest frame, the arc-shaped rear cushion can be swung upward to lift the buttocks, and at the same time the arc-shaped lumbar support can be swung backward, so that a certain space is formed between the arc-shaped rear cushion and the arc-shaped lumbar support, so that when the arc-shaped rear cushion is swung upward, the buttocks can be avoided from being squeezed by the hinged linkage mechanism of the buttocks; during the upward swinging of the backrest frame, the arc-shaped rear cushion swings downward, the backrest can push the person forward, and the arc-shaped lumbar support swings forward to support the waist of the human body, thereby greatly improving the user experience, and the footrest mechanism can swing on the arc-shaped push tube, so that the footrest mechanism can be synchronously extended forward by the swinging of the arc-shaped push tube, thereby preventing the feet from being squeezed and causing an uncomfortable experience. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 Schematic diagram of the sitting posture of the wheelchair of this embodiment.
[0015] Figure 2 Schematic diagram of the lying state of the wheelchair of this embodiment.
[0016] Figure 3 FIG. 4 is a schematic diagram of the three-dimensional structure of the wheelchair of this embodiment.
[0017] Figure 4 It is a schematic diagram of the three-dimensional structure of the seat cushion and the curved rear cushion.
[0018] Figure 5 It is a schematic diagram of the three-dimensional structure of the backrest and the curved lumbar support.
[0019] Figure 6 It is a schematic diagram of the three-dimensional structure of the frame and the pedal mechanism.
[0020] Figure 7 It is a schematic diagram of the three-dimensional structure of the frame.
[0021] Figure 8 It is a three-dimensional structural schematic diagram of the backrest frame and the connecting rod mechanism.
[0022] Fig. 9 Schematic diagram of the three-dimensional structure of the linkage rod.
[0023] Fig.10 It is a schematic diagram of the three-dimensional structure of the connecting rod mechanism.
[0024] Fig.11 It is a schematic diagram of the three-dimensional structure of the second supporting arc rod.
[0025] Fig.12 It is a schematic diagram of the three-dimensional structure of the pedal mechanism.
[0026] In the figure: frame 1, front wheel 2, auxiliary wheel 3, rear wheel 4, pedal mechanism 5, backrest frame 6, connecting rod mechanism 7, seat cushion 8, arc-shaped rear cushion 9, backrest 10, arc-shaped lumbar support 11, push handle 12, support frame 13, first rotating shaft 14, second rotating shaft 15, first hinge seat 16, second hinge seat 17, third hinge seat 18, U-shaped rod 19, linkage rod 20, middle corner section 21, rear cushion connecting section 22, backrest connecting section 23, first hinge hole 24, second hinge hole 25, third hinge hole 26, The fourth articulated seat 27, the fifth articulated seat 28, the first supporting arc rod 29, the second supporting arc rod 30, the bent rod 31, the first strip hole 32, the gas rod 33, the protrusion 34, the second strip hole 35, the vertical rod 36, the jack 37, the first connecting rod 38, the fixed seat 39, the socket 40, the sixth articulated seat 41, the arc push tube 42, the pedal rod 43, the seventh articulated seat 44, the pedal 45, the bent arm 46, the second connecting rod 47, the foot rod 48, the L-shaped round rod 49, the connecting arm 50, and the third strip hole 51. DETAILED DESCRIPTION
[0027] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0028] Combination Figures 1 to 12The ergonomically designed reclining wheelchair shown in the figure comprises a frame 1, a support frame 13 is integrally arranged above the frame 1, and is characterized in that a seat cushion 8 is fixedly mounted on the support frame 13, a backrest frame 6 is mounted at the rear end of the frame 1, a backrest 10 is mounted on the backrest frame 6, a swingable arc-shaped rear cushion 9 is arranged at one end of the seat cushion 8 close to the backrest 10, a swingable arc-shaped lumbar support 11 is arranged at the lower end of the backrest 10, and the backrest frame 6 is swingably mounted on the frame 1 through a connecting rod mechanism 7, so that the connecting rod mechanism 7 synchronously drives the arc-shaped rear cushion 9 and the arc-shaped lumbar support 11 to swing; a swingable arc-shaped push tube 42 is mounted at the front end of the frame 1, and a pedal mechanism 5 is hingedly mounted on the arc-shaped push tube 42; in this embodiment, the backrest frame 6 is connected to the backrest frame 6. During the downward swinging process, the arc-shaped rear pad 9 can be swung upward to lift the buttocks, and the arc-shaped lumbar support 11 can be swung backward at the same time, so that a certain space is formed between the arc-shaped rear pad 9 and the arc-shaped lumbar support 11, so that when the arc-shaped rear pad 9 is swung upward, the buttocks can be avoided from being squeezed by the hinged linkage mechanism of the buttocks; during the upward swinging process of the backrest frame 6, the arc-shaped rear pad 9 swings downward, the backrest 10 can push the person forward, and the arc-shaped lumbar support 11 swings forward to support the human waist, thereby greatly improving the user experience, and the footrest mechanism 5 can swing on the arc-shaped push tube 42, so that the footrest mechanism 5 can be synchronously extended forward by the swinging of the arc-shaped push tube 42, to prevent the feet from being squeezed and causing discomfort.
[0029] The connecting rod mechanism 7 of this embodiment includes a U-shaped rod 19, a bent rod 31 and a linkage rod 20. The lower end of the backrest frame 6 is provided with a fourth hinge seat 27, the upper end is provided with a push handle 12, and the lower rear side of the backrest frame 6 is provided with a fifth hinge seat 28. One end of the U-shaped rod 19 is hinged to the fourth hinge seat 27, one end of the bent rod 31 is hinged to the fifth hinge seat 28, and the other end is provided with a first strip hole 32. The first hinge seat 16 and the fifth hinge seat 28 are respectively provided on the support frame 13. The second hinge seat 17 is located at the rear and lower part of the first hinge seat 16. The other end of the U-shaped rod 19 is hinged to the first hinge seat 16. The middle end of the linkage rod 20 is hinged to the second hinge seat 17. One end of the linkage rod 20 is hinged to the first strip hole 32. The linkage rod 20 is also hinged to one end of the first support arc rod 29 and the second support arc rod 30. The first support arc rod 29 is connected to the arc waist support 11. The first support arc rod The other end of the U-shaped rod 29 is hinged to the fourth hinge seat 27, the second supporting arc rod 30 is connected to the arc rear pad 9, and the other end of the second supporting arc rod 30 is hinged to the first hinge seat 16; when the push handle 12 presses the backrest frame 6 downward, the linkage rod 20 swings around the second hinge seat 17, and under the limit of the first strip hole 32, the lower end of the first supporting arc rod 29 is quickly positioned. As the backrest frame 6 continues to be pressed downward, the angle between the first supporting arc rod 29 and the backrest frame 6 becomes smaller to prevent the first supporting arc rod 29 from squeezing the buttocks. At the same time, in the process of the push handle 12 pressing the backrest frame 6 downward, the curved rod 31 presses one end of the linkage rod 20 downward, so that the other end of the linkage rod 20 swings upward, so that the second supporting arc rod 30 swings upward, thereby lifting the buttocks of the human body to prevent squeezing the buttocks during the adjustment process. The U-shaped rod 19 can make the backrest frame 6 more stable and the overall connection structure more stable.
[0030] Specifically, the linkage rod 20 of the present embodiment includes an intermediate corner section 21, one end of the intermediate corner section 21 is provided with a rear pad connecting section 22, and the other end is provided with a backrest connecting section 23, a first hinge hole 24 corresponding to the second hinge seat 17 is provided between the intermediate corner section 21 and the rear pad connecting section 22, a second hinge hole 25 hinged to the first supporting arc rod 29 is provided between the intermediate corner section 21 and the backrest connecting section 23, a third hinge hole 26 hinged to the second supporting arc rod 30 is provided at the end of the rear pad connecting section 22, and a third hinge hole hinged to the first strip hole 32 is provided at the end of the backrest connecting section 23; the first supporting arc rod 29 and the second supporting arc rod 30 can be simultaneously linked to the swing adjustment by the linkage rod 20 to prevent the first supporting arc rod 29 and the second supporting arc rod 30 from squeezing the buttocks of the human body during the adjustment process.
[0031] In this embodiment, a protrusion 34 is provided on the lower side of one end of the second supporting arc rod 30 away from the first hinge seat 16, and a second strip hole 35 is opened on the protrusion 34. The third hinge hole 26 is hinged to the second strip hole 35. The second strip hole 35 can be used to limit the moving stroke of one end of the linkage rod 20 to prevent the second supporting arc rod 30 from swinging upward too much and affecting the experience.
[0032] A third articulated seat 18 is provided at the rear end of the frame 1 of the present embodiment, and one end of the gas rod 33 is articulated on the third articulated seat 18, and the other end of the gas rod 33 is articulated with the fifth articulated seat 28; the gas rod 33 can improve the support of the structure, and can play a buffering role during the swinging process of the backrest frame 6, and can also adjust the swinging amplitude of the backrest frame 6.
[0033] It is worth noting that the seat cushion 8 and the curved rear cushion 9 of this embodiment are connected by the first rotating shaft 14, so that the curved rear cushion 9 can swing, and the backrest 10 and the curved lumbar support 11 are connected by the second rotating shaft 15, so that the curved lumbar support 11 can swing. It is also worth noting that the curvature of the first supporting curved rod 29 of this embodiment matches the curvature of the curved lumbar support 11, and the curvature of the second supporting curved rod 30 matches the curvature of the curved rear cushion 9, so that the structure is more compact.
[0034] The front ends of the frame 1 and the support frame 13 of this embodiment are connected by a vertical rod 36. The upper end of the vertical rod 36 is provided with a plug hole 37 and a socket 40 is installed thereon. The lower end of the socket 40 is provided with a fixing seat 39 via a first connecting rod 38. The fixing seat 39 is clamped and installed on the vertical rod. One end of the arc-shaped push tube 42 is hinged to the socket 40, and the other end is hinged to the pedal mechanism 5. This allows the pedal mechanism 5 to be more stably installed on the vertical rod 36 to prevent it from loosening.
[0035] Specifically, the pedal mechanism 5 of the present embodiment includes a pedal rod 43, one end of the pedal rod 43 is hinged to the other end of the arc-shaped push tube 42, and a pedal 45 is installed at the other end. A sixth hinge seat 41 is provided on the first connecting rod 38, and a seventh hinge seat 44 is provided on the side of the pedal rod 43 close to the first connecting rod 38. A second connecting rod 47 is hinged to the lower side of the arc-shaped push tube 42, and the lower end of the second connecting rod 47 is hinged to one end of a curved arm 46, and the middle part of the curved arm 46 is hinged to the sixth hinge seat 41. The other end of the curved arm 46 is hinged to a connecting arm 50, and the end of the connecting arm 50 away from the curved arm 46 is provided with a third strip hole 51. The middle part of the curved arm 46 is also hinged to a foot rod 48, and one side of the foot rod 48 is hinged to the first The three strip holes 51 are hinged, and an L-shaped round rod 49 is hinged on the seventh hinge seat 44. The L-shaped round rod 49 is inserted into the foot rod 48 so that the foot rod 48 can move on the L-shaped round rod 49. During operation, the L-shaped round rod 49 can be grasped to operate, and when the foot pedal 45 is swung upward, the foot pedal 43 pulls the foot rod 48 to swing, so that the connecting arm 50 pulls the curved arm 46 to swing, and the curved arm 46 pulls the second connecting rod 47, so that the arc-shaped push tube 42 swings downward, so that the upper end of the foot pedal 43 moves forward and downward, so that the foot pedal 45 does not simply swing around the center of the circle during the swinging process, but can swing while pushing forward, so as to prevent squeezing the user's sole and causing a poor experience.
[0036] It is worth noting that the front wheel 2 is installed on the lower side of the front end of the frame 1 of this embodiment, and the auxiliary wheel 3 is installed on the rear end. The rear end of the support frame 13 is connected to the frame 1 through a reinforcement block, and the rear wheel 4 is installed on the reinforcement block, so that the wheelchair is more stable during movement.
[0037] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.
Claims
1. A reclining wheelchair with an ergonomic design, comprising a frame (1), a support frame (13) being integrally arranged above the frame (1), characterized in that: A seat cushion (8) is fixedly mounted on the support frame (13); a backrest frame (6) is mounted at the rear end of the vehicle frame (1); a backrest (10) is mounted on the backrest frame (6); a swingable arc-shaped rear cushion (9) is arranged at one end of the seat cushion (8) close to the backrest (10); a swingable arc-shaped lumbar support (11) is arranged at the lower end of the backrest (10); the backrest frame (6) is swingably mounted on the vehicle frame (1) via a connecting rod mechanism (7), so that the connecting rod mechanism (7) synchronously drives the arc-shaped rear cushion (9) and the arc-shaped lumbar support (11) to swing; A swingable arc-shaped push tube (42) is installed at the front end of the vehicle frame (1), and a pedal mechanism (5) is hingedly installed on the arc-shaped push tube (42).
2. The ergonomically designed reclining wheelchair according to claim 1, characterized in that: The connecting rod mechanism (7) comprises a U-shaped rod (19), a curved rod (31) and a linkage rod (20); a fourth hinge seat (27) is arranged at the lower end of the backrest frame (6); a fifth hinge seat (28) is arranged at the lower rear side of the backrest frame (6); one end of the U-shaped rod (19) is hinged to the fourth hinge seat (27); one end of the curved rod (31) is hinged to the fifth hinge seat (28); the other end is provided with a first strip hole (32); a first hinge seat (16) and a second hinge seat (17) are respectively arranged on the support frame (13); the second hinge seat (17) is located at the rear and lower part of the first hinge seat (16); the U-shaped rod (19) The other end of the linkage rod (20) is hinged to the first hinge seat (16), the middle end of the linkage rod (20) is hinged to the second hinge seat (17), one end of the linkage rod (20) is hinged to the first strip hole (32), and one end of a first supporting arc rod (29) and a second supporting arc rod (30) are respectively hinged to the linkage rod (20), the first supporting arc rod (29) is connected to the arc-shaped lumbar support (11), the other end of the first supporting arc rod (29) is hinged to the fourth hinge seat (27), the second supporting arc rod (30) is connected to the arc-shaped rear pad (9), and the other end of the second supporting arc rod (30) is hinged to the first hinge seat (16).
3. The ergonomically designed reclining wheelchair according to claim 2, characterized in that: The linkage rod (20) comprises an intermediate corner section (21), one end of the intermediate corner section (21) is provided with a rear pad connection section (22), and the other end is provided with a backrest connection section (23), a first hinge hole (24) corresponding to the second hinge seat (17) is provided between the intermediate corner section (21) and the rear pad connection section (22), a second hinge hole (25) hinged to the first supporting arc rod (29) is provided between the intermediate corner section (21) and the backrest connection section (23), a third hinge hole (26) hinged to the second supporting arc rod (30) is provided at the end of the rear pad connection section (22), and a third hinge hole hinged to the first strip hole (32) is provided at the end of the backrest connection section (23).
4. The ergonomically designed reclining wheelchair according to claim 3, characterized in that: A protrusion (34) is provided on the lower side of one end of the second supporting arc rod (30) away from the first hinge seat (16), a second strip hole (35) is provided on the protrusion (34), and the third hinge hole (26) is hingedly connected to the second strip hole (35).
5. The ergonomically designed reclining wheelchair according to claim 3, characterized in that: A third hinge seat (18) is provided at the rear end of the vehicle frame (1), one end of a gas rod (33) is hinged to the third hinge seat (18), and the other end of the gas rod (33) is hinged to a fifth hinge seat (28).
6. The ergonomically designed reclining wheelchair according to claim 1, characterized in that: The seat cushion (8) and the arc-shaped rear cushion (9) are connected via a first rotating shaft (14), and the backrest (10) and the arc-shaped waist support (11) are connected via a second rotating shaft (15).
7. The ergonomically designed reclining wheelchair according to claim 1, characterized in that: The front ends of the frame (1) and the support frame (13) are connected via a vertical rod (36); a plug hole (37) is provided at the upper end of the vertical rod (36) and a socket (40) is installed thereon; a fixing seat (39) is installed at the lower end of the socket (40) via a first connecting rod (38); the fixing seat (39) is clamped and installed on the vertical rod; one end of the arc-shaped push tube (42) is hinged to the socket (40), and the other end is hinged to the pedal mechanism (5).
8. The ergonomically designed reclining wheelchair according to claim 7, characterized in that: The pedal mechanism (5) comprises a pedal rod (43), one end of the pedal rod (43) is hinged to the other end of the arc-shaped push tube (42), and a pedal (45) is installed at the other end; a sixth hinge seat (41) is arranged on the first connecting rod (38); a seventh hinge seat (44) is arranged on the side of the pedal rod (43) close to the first connecting rod (38); a second connecting rod (47) is hinged to the lower side of the arc-shaped push tube (42); the lower end of the second connecting rod (47) is hinged to one end of a crank arm (46); the crank arm (46) The middle part of the curved arm (46) is hinged to the sixth hinge seat (41); the other end of the curved arm (46) is hinged to a connecting arm (50); the end of the connecting arm (50) away from the curved arm (46) is provided with a third strip hole (51); the middle part of the curved arm (46) is also hinged to a foot rod (48); one side of the foot rod (48) is hinged to the third strip hole (51); the seventh hinge seat (44) is hinged to an L-shaped round rod (49); the L-shaped round rod (49) is passed through the foot rod (48) so that the foot rod (48) can move on the L-shaped round rod (49).
9. The ergonomically designed reclining wheelchair according to claim 7, characterized in that: A front wheel (2) is mounted on the lower side of the front end of the frame (1), and an auxiliary wheel (3) is mounted on the rear end. The rear end of the support frame (13) is connected to the frame (1) via a reinforcement block, and a rear wheel (4) is mounted on the reinforcement block.