Seat mechanism with backrest against wall and assistance

Abstract

The utility model discloses a back rest wall -hugging station -aiding seat mechanism, include: base, seat frame subassembly, leg support subassembly, drive subassembly, homing power component, the seat frame subassembly is connected on the base, the leg support subassembly is located seat frame subassembly one end, drive subassembly is used for driving seat frame subassembly adjustment to lift angle and the extension and retraction of leg support subassembly, homing power component connects seat frame subassembly and leg support subassembly, homing power component is used for exerting the tension to leg support subassembly, the utility model has the advantage that improves the fluency of leg retraction.

Description

Technical Field

[0001] This utility model belongs to the field of electric chair technology, specifically relating to a backrest wall-mounted assistive standing seat mechanism. Background Technology

[0002] Electric chairs not only provide comfort but also enhance user convenience. For example, a standing-assisted electric chair can raise its rear end slightly to assist the user in standing up, solving the problem of difficulty in standing for users with leg disabilities. This greatly benefits both the user and caregivers. However, in existing structures, the foot support structure retracts and becomes stuck when transitioning from a lying to a sitting or TV-like position. To improve the smoothness of leg retraction, a wall-mounted backrest-assisted standing chair mechanism is proposed. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art.

[0004] Therefore, this utility model proposes a backrest-to-wall standing assist seat mechanism, which has the advantage of improving the smoothness of leg retraction.

[0005] The wall-mounted backrest assisting standing seat mechanism according to an embodiment of the present invention includes: a base, a seat frame assembly, a leg support assembly, a drive assembly, and a return-to-position assist assembly; the seat frame assembly is connected to the base; the leg support assembly is disposed at one end of the seat frame assembly; the drive assembly is used to drive the seat frame assembly to adjust the lifting angle and the leg support assembly to extend and retract; the return-to-position assist assembly connects the seat frame assembly and the leg support assembly, and the return-to-position assist assembly is used to apply a pulling force to the leg support assembly.

[0006] According to one embodiment of the present invention, the repositioning assist component includes a guide plate, a pull rod, and a first tension spring; a leg drive rod is connected between the leg support component and the seat frame component, the leg drive rod is used to drive the leg support component to extend and retract, the guide plate is rotatably connected to the seat frame component, one end of the pull rod is rotatably connected to the leg drive rod, the other end of the pull rod is rotatably connected to the guide plate, one end of the first tension spring is connected to the guide plate, and the other end of the first tension spring is connected to the leg drive rod.

[0007] According to one embodiment of the present invention, a drive linkage assembly is provided between the drive assembly and the seat frame assembly. The drive linkage assembly includes a first fixed plate, a first drive rod, a second drive rod, a third drive rod, a fourth drive rod, and a fifth drive rod; the first fixed plate, the first drive rod, the second drive rod, the third drive rod, the fourth drive rod, and the fifth drive rod are connected in sequence.

[0008] According to one embodiment of the present invention, the leg support assembly includes a first leg link, a second leg link, a third leg link, a fourth leg link, a fifth leg link, and a sixth leg link; the first leg link, the second leg link, the third leg link, the fourth leg link, the fifth leg link, and the sixth leg link are linked together, and a foot support frame is connected to the end of the leg support assembly.

[0009] According to one embodiment of the present invention, the base includes a bottom frame, a pair of oppositely arranged second fixing plates, a pair of oppositely arranged first base connecting rods, a pair of oppositely arranged second base connecting rods, a pair of oppositely arranged base connecting plates, a first connecting shaft, a pair of oppositely arranged side plates, a pair of oppositely arranged traction plates, and a second connecting shaft; the bottom frame, the pair of oppositely arranged second fixing plates, the pair of oppositely arranged first base connecting rods, the pair of oppositely arranged second base connecting rods, the pair of oppositely arranged base connecting plates, the first connecting shaft, the pair of oppositely arranged side plates, the pair of oppositely arranged traction plates, and the second connecting shaft are connected in a driving connection; one end of the driving component is connected to the bottom frame, and the other end of the driving component is connected to the second connecting shaft.

[0010] According to one embodiment of the present invention, the fifth drive rod is connected to the traction plate.

[0011] According to one embodiment of the present invention, the driving component is a push rod motor, and the driving component has two reciprocating strokes. In the first reciprocating stroke, the driving component drives the seat frame component to lift and retract, thereby realizing the standing assistance function; in the second reciprocating stroke, the driving component drives the leg support component to extend and retract.

[0012] According to one embodiment of the present invention, it further includes a backrest assembly, which includes a backrest connecting plate, a first backrest connecting rod, a second backrest connecting rod, and a third backrest connecting rod; the backrest assembly is connected to the seat frame assembly.

[0013] The beneficial effect of this utility model is that it uses a return-assist component to apply a retraction force to the leg support component, making the initial retraction of the leg support component smoother and ensuring the smoothness of the retraction. A six-link structure consisting of a first leg link, a second leg link, a third leg link, a fourth leg link, a fifth leg link, and a sixth leg link is used to support the legs, which increases the stability of the support compared to the traditional four-link structure. The drive linkage assembly, which consists of a first fixed plate, a first drive rod, a second drive rod, a third drive rod, a fourth drive rod, and a fifth drive rod, forms a six-bar linkage structure, which also increases the stability of the structure.

[0014] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention.

[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments with accompanying drawings, in which: Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model in a lying position; Figure 2 This is a side view of the overall structure of this utility model in a lying position. Figure 3 This is a three-dimensional schematic diagram of the base structure of this utility model; Figure 4 This is a schematic diagram of the drive linkage assembly structure of this utility model; Figure 5 This is a schematic diagram of the inner side of the seat frame assembly of this utility model; Figure 6 This is a schematic diagram of the outer side of the seat frame assembly of this utility model; Figure 7 This is a side view of the overall structure of this utility model in TV state; Figure 8 This is an enlarged schematic diagram of area A of this utility model; Figure 9 This is a three-dimensional schematic diagram of the overall structure of this utility model in the station's auxiliary state; Figure 10 This is a side view schematic diagram of the overall structure of this utility model in the station stand state; Figure 11 This is a three-dimensional schematic diagram of the overall structure of this utility model in a seated posture. Figure 12 This is a side view of the overall structure of this utility model in a seated position. Figure label: 1. Base; 11. Bottom frame; 12. Second fixing plate; 13. First base connecting rod; 131. Tenth connection point; 132. Eleventh connection point; 14. Second base connecting rod; 141. Twelfth connection point; 142. Thirteenth connection point; 15. Base connecting plate; 16. First connecting shaft; 17. Side plate; 171. Fourteenth connection point; 172. First limiting pin; 18. Traction plate; 19. Second connecting shaft; 2. Seat frame assembly; 21. Seat frame mounting plate; 211. Second limiting pin; 212. Thirty-sixth connection point; 213. Second tension spring; 22. First seat frame linkage rod; 221. First connection point; 222. Second connection point; 223. Third connection point; 23. Second seat frame linkage rod; 231. Fourth Connection points; 24. Third seat frame linkage rod; 241. Fifth connection point; 242. Forty-seventh connection point; 25. Fourth seat frame linkage rod; 251. Sixth connection point; 252. Seventh connection point; 253. Sixth limit pin; 26. Fifth seat frame linkage rod; 261. Eighth connection point; 27. Seat frame backrest linkage rod; 271. Ninth connection point; 272. Twenty-second connection point; 273. Twenty-seventh connection point; 274. Thirtieth connection point; 275. Seventh limit pin; 28. Connecting frame; 281. Fifth limit pin; 29. ​​Sixth seat frame linkage rod; 291. Twenty-third connection point; 3. Leg support assembly; 31. First leg link; 311. Thirty-seventh connection point; 312. Thirty-eighth connection point; 31 3. Thirty-ninth connection point; 32. Second leg link; 321. Fortieth connection point; 322. Forty-first connection point; 33. Third leg link; 331. Forty-second connection point; 332. Forty-third connection point; 333. Fourth limit pin; 34. Fourth leg link; 341. Forty-fourth connection point; 35. Fifth leg link; 351. Forty-fifth connection point; 352. Third limit pin; 36. Sixth leg link; 361. Forty-sixth connection point; 4. Return assist component; 41. Guide plate; 411. Twenty-eighth connection point; 412. Slide rail; 42. Pull rod; 421. Twenty-sixth connection point; 43. First tension spring; 51. First fixing plate; 511. Fifteenth connection point; 52. First... Drive rod; 521, sixteenth connection point; 53, second drive rod; 531, seventeenth connection point; 532, eighteenth connection point; 54, third drive rod; 541, forty-eighth connection point; 55, fourth drive rod; 551, nineteenth connection point; 552, twentieth connection point; 56, fifth drive rod; 561, twenty-first connection point; 6, foot support frame; 7, drive assembly; 8, leg drive rod; 81, twenty-fourth connection point; 82, twenty-fifth connection point; 83, twenty-ninth connection point; 91, backrest connecting plate; 92, first backrest link; 921, thirty-fourth connection point; 922, thirty-fifth connection point; 923, eighth limit pin; 93, second backrest link; 931, thirty-first connection point;932. Thirty-second connection point; 94. Third backrest link; 941. Thirty-third connection point. Detailed Implementation

[0017] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0018] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] The backrest wall-mounted standing seat mechanism of this utility model is described in detail below with reference to the accompanying drawings.

[0021] like Figures 1-12As shown, the wall-mounted backrest assisting standing seat mechanism according to an embodiment of this utility model includes: a base 1, a seat frame assembly 2, a leg support assembly 3, a drive assembly 7, and a return-to-position assist assembly 4; the seat frame assembly 2 is connected to the base 1; the leg support assembly 3 is disposed at one end of the seat frame assembly 2; the drive assembly 7 is used to drive the seat frame assembly 2 to adjust the lifting angle and the leg support assembly 3 to extend and retract; the return-to-position assist assembly 4 connects the seat frame assembly 2 and the leg support assembly 3, and is used to apply a pulling force to the leg support assembly 3. By using the return-to-position assist assembly 4 to apply a retraction pulling force to the leg support assembly 3, the leg support assembly 3 retracts more smoothly during the initial retraction, ensuring the smoothness of the retraction.

[0022] The base 1 includes a bottom frame 11, a pair of opposing second fixing plates 12, a pair of opposing first base connecting rods 13, a pair of opposing second base connecting rods 14, a pair of opposing base connecting plates 15, a first connecting shaft 16, a pair of opposing side plates 17, a pair of opposing traction plates 18, and a second connecting shaft 19. The pair of opposing second fixing plates 12 are respectively fixed to both sides of the bottom frame 11. One end of the first base connecting rod 13 is pivotally connected to the second fixing plate 12 at the tenth connection point 131, and the other end of the first base connecting rod 13 is connected to the base connecting plate 16 at the eleventh connection point 132. 5. Pivot connection; one end of the second base connecting rod 14 is pivotally connected to the second fixed plate 12 at the twelfth connection point 141, and the other end of the second base connecting rod 14 is pivotally connected to the base connecting plate 15 at the thirteenth connection point 142; both ends of the first connecting shaft 16 are fixedly connected to a pair of oppositely arranged side plates 17; the side plates 17, traction plates 18, and base connecting plates 15 are pivotally connected at the fourteenth connection point 171, and both ends of the second connecting shaft 19 are fixedly connected to a pair of oppositely arranged traction plates 18; one end of the drive assembly 7 is connected to the bottom frame 11, and the other end of the drive assembly 7 is connected to the second connecting shaft 19. A first limiting pin 172 is provided on the side plate 17. In the sitting position, the traction plate 18 is limited by the first limiting pin 172. Therefore, in the sitting position, the drive assembly 7 pulls back the second connecting shaft 19, causing the traction plate 18 to drive the side plate 17 to move upward, so as to realize the function of assisting standing.

[0023] A pair of opposing drive linkage assemblies are provided between the drive assembly 7 and the seat frame assembly 2, and the two drive linkage assemblies are respectively connected to the two side plates 17; the drive linkage assembly includes a first fixed plate 51, a first drive rod 52, a second drive rod 53, a third drive rod 54, a fourth drive rod 55, and a fifth drive rod 56; the first fixed plate 51 is pivotally connected to one end of the first drive rod 52 at the fifteenth connection point 511, the other end of the first drive rod 52 is pivotally connected to one end of the second drive rod 53 at the sixteenth connection point 521, and the second drive rod 53 is pivotally connected to the seventeenth connection point... At point 531, one end of the third drive rod 54 is pivotally connected; at point 532, the second drive rod 53 is pivotally connected to the side plate 17; at point 441, the other end of the third drive rod 54 is pivotally connected to one end of the fourth drive rod 55; at point 551, the other end of the fourth drive rod 55 is pivotally connected to one end of the fifth drive rod 56; at point 552, the fourth drive rod 55 is pivotally connected to the side plate 17; and at point 561, the other end of the fifth drive rod 56 is pivotally connected to the upper end of the traction plate 18.

[0024] Specifically, the seat frame assembly 2 includes a pair of oppositely arranged connecting brackets 28, the lower surface of which is fixedly connected to the side plate 17.

[0025] Seat frame assembly 2 also includes a pair of oppositely arranged seat frame mounting plates 21, a pair of oppositely arranged first seat frame linkage rods 22, a pair of oppositely arranged second seat frame linkage rods 23, a pair of oppositely arranged third seat frame linkage rods 24, a pair of oppositely arranged fourth seat frame linkage rods 25, a pair of oppositely arranged fifth seat frame linkage rods 26, a pair of oppositely arranged seat frame backrest linkage rods 27, and a pair of oppositely arranged sixth seat frame linkage rods 29; the first seat frame linkage rod 22 is pivotally connected to the seat frame mounting plate 21 at the first connection point 221, one end of the first seat frame linkage rod 22 is fixedly connected to one end of the first fixing plate 51 at the second connection point 222, and one end of the first seat frame linkage rod 22 is also pivotally connected to one end of the second seat frame linkage rod 23 at the third connection point 223, and the other end of the second seat frame linkage rod 23... One end of the third seat frame linkage rod 24 is pivotally connected to the middle area of ​​the third seat frame linkage rod 24 at the fourth connection point 231. One end of the third seat frame linkage rod 24 is pivotally connected to one end of the fourth seat frame linkage rod 25 at the fifth connection point 241. The other end of the third seat frame linkage rod 24 is pivotally connected to the connecting frame 28 at the forty-seventh connection point 242. The other end of the fourth seat frame linkage rod 25 is pivotally connected to the seat frame mounting plate 21 at the sixth connection point 251. The middle area of ​​the fourth seat frame linkage rod 25 is pivotally connected to one end of the fifth seat frame linkage rod 26 at the seventh connection point 252. The other end of the fifth seat frame linkage rod 26 is pivotally connected to the middle area of ​​the seat frame backrest linkage rod 27 at the eighth connection point 261. The lower middle area of ​​the seat frame backrest linkage rod 27 is pivotally connected to the seat frame mounting plate 21 at the ninth connection point 271.

[0026] The connecting frame 28 is provided with a fifth limiting pin 281, which is used to limit the rotation angle of the third seat frame linkage rod 24.

[0027] One end of the seat frame backrest linkage rod 27 is pivotally connected to one end of the sixth seat frame linkage rod 29 at the twenty-second connection point 272; the other end of the sixth seat frame linkage rod 29 is pivotally connected to the connecting frame 28 at the twenty-third connection point 291; a seventh limiting pin 275 is provided on the seat frame backrest linkage rod 27; the seventh limiting pin 275 is used to limit the relative angle between the sixth seat frame linkage rod 29 and the seat frame backrest linkage rod 27.

[0028] The return-to-position assist component 4 includes a pair of oppositely arranged guide plates 41, a pair of oppositely arranged pull rods 42, and a pair of oppositely arranged first tension springs 43; a leg drive rod 8 connects the leg support component 3 and the seat frame component 2, with the other end of the leg drive rod 8 pivotally connected to one end of the pull rod 42 at the twenty-fifth connection point 82; the other end of the pull rod 42 pivotally connected to one end of the guide plate 41 at the twenty-sixth connection point 421, and the other end of the guide plate 41 is connected to the seat frame backrest linkage rod 27 at the twenty-seventh connection point 273. The pivot connection has a limiting effect on the seat frame mounting plate 21 at the twenty-seventh connection point 273, which is used to enable the seat frame mounting plate 21 to drive the backrest assembly. The guide plate 41 has a triangular structure, and its third end is connected to one end of the first tension spring 43 at the twenty-eighth connection point 411. The other end of the first tension spring 43 is connected to the leg drive rod 8 at the twenty-ninth connection point 83. The guide plate 41 has a slide rail 412 in the middle. The seat frame mounting plate 21 has a second limiting pin 211, which is slidably connected in the slide rail 412.

[0029] The other end of the first seat frame linkage rod 22 is connected to the leg drive rod 8 at the twenty-ninth connection point 83.

[0030] It also includes a backrest assembly, which includes a pair of opposing backrest connecting plates 91, a pair of opposing first backrest connecting rods 92, a pair of opposing second backrest connecting rods 93, and a pair of opposing third backrest connecting rods 94; the upper end of the backrest connecting plate 91 is used to mount the backrest, one end of the second backrest connecting rod 93 is pivotally connected to the seat frame backrest linkage rod 27 at the thirtieth connection point 274, and the other end of the second backrest connecting rod 93 is pivotally connected to the lower end of the backrest connecting plate 91 at the thirty-first connection point 931. At the thirty-second connection point 932, one end of the third backrest link 94 is pivotally connected to the third backrest link 94. The other end of the third backrest link 94 is pivotally connected to the seat frame mounting plate 21 at the thirty-third connection point 941. The first backrest link 92 is pivotally connected to the lower end of the backrest connecting plate 91 at the thirty-fourth connection point 921, and to the seat frame mounting plate 21 at the thirty-fifth connection point 922. The first backrest link 92 is provided with an eighth limiting pin 923, which is used to limit the rotation angle of the first backrest link 92. A second tension spring 213 is connected to the seat frame mounting plate 21 at the thirty-sixth connection point 212, and the other end of the second tension spring 213 is connected to the seat frame backrest linkage rod 27 at the thirtieth connection point 274.

[0031] The leg support assembly 3 includes a pair of opposing first leg links 31, a pair of opposing second leg links 32, a pair of opposing third leg links 33, a pair of opposing fourth leg links 34, a pair of opposing fifth leg links 35, and a pair of opposing sixth leg links 36. The first leg links 31 are pivotally connected to the seat frame mounting plate 21 at the thirty-seventh connection point 311, and the first leg links 31 are pivotally connected to the second leg links 32 at the thirty-eighth connection point 312. The second leg links 32 are pivotally connected to one end of the foot support frame 6 at the forty-first connection point 322. The third leg links 33 are pivotally connected to the seat frame mounting plate 21 at the forty-second connection point 331. The third leg link 33 is pivotally connected to the fourth leg link 34 at the forty-third connection point 332. The fourth leg link 34 is pivotally connected to the first leg link 31 at the thirty-ninth connection point 313. The fourth leg link 34 is pivotally connected to the fifth leg link 35 at the forty-fourth connection point 341. The fifth leg link 35 is pivotally connected to the second leg link 32 at the fortyth connection point 321. The fifth leg link 35 is pivotally connected to the sixth leg link 36 at the forty-fifth connection point 351. The sixth leg link 36 is pivotally connected to the other end of the foot support frame 6 at the forty-sixth connection point 361. One end of the leg drive rod 8 is pivotally connected to the third leg link 33 at the twenty-fourth connection point 81.

[0032] Furthermore, a third limiting pin 352 is provided on the fifth leg link 35, which is used to limit the unfolding angle of the leg support assembly 3; a fourth limiting pin 333 is provided on the third leg link 33, which is used to limit the retraction angle of the leg support assembly 3; a sixth limiting pin 253 is provided on the fourth seat frame linkage rod 25, which is used to limit the rotation angle of the third leg link 33.

[0033] The drive assembly 7 is a push rod motor. The drive assembly 7 has two reciprocating strokes. In the first reciprocating stroke, the drive assembly 7 drives the seat frame assembly 2 to lift and retract, realizing the standing assistance function. In the second reciprocating stroke, the drive assembly 7 drives the leg support assembly 3 to extend and retract.

[0034] In other words, when in a seated position, the output of the push rod motor is located between two reciprocating strokes. When assistance to stand is needed, the push rod motor is activated, and its output is in the retracted state. After assistance to stand is completed, the output of the push rod motor is released back to the initial position. When it is necessary to adjust the seat to a TV position or a reclining position, the push rod motor is activated, and its output is in the output state. When the desired TV position or reclining position is reached, the output of the push rod motor is stopped.

[0035] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A backrest-to-wall standing seat mechanism, characterized in that, include: Base (1); A seat frame assembly (2) is connected to a base (1); A leg support assembly (3) is located at one end of the seat frame assembly (2); Drive assembly (7), which is used to drive the seat frame assembly (2) to adjust the lifting angle and the extension and retraction of the leg support assembly (3); The return-to-position assist component (4) is connected to the seat frame component (2) and the leg support component (3). The return-to-position assist component (4) is used to apply tension to the leg support component (3).

2. The backrest wall-adhesive standing seat mechanism according to claim 1, characterized in that, The repositioning assist component (4) includes a guide plate (41), a pull rod (42), and a first tension spring (43); a leg drive rod (8) is connected between the leg support component (3) and the seat frame component (2). The leg drive rod (8) is used to drive the leg support component (3) to extend and retract. The guide plate (41) is rotatably connected to the seat frame component (2). One end of the pull rod (42) is rotatably connected to the leg drive rod (8), and the other end of the pull rod (42) is rotatably connected to the guide plate (41). One end of the first tension spring (43) is connected to the guide plate (41), and the other end of the first tension spring (43) is connected to the leg drive rod (8).

3. The backrest-to-wall-adhesive standing seat mechanism according to claim 2, characterized in that, A drive linkage assembly is provided between the drive assembly (7) and the seat frame assembly (2). The drive linkage assembly includes a first fixed plate (51), a first drive rod (52), a second drive rod (53), a third drive rod (54), a fourth drive rod (55), and a fifth drive rod (56). The first fixed plate (51), the first drive rod (52), the second drive rod (53), the third drive rod (54), the fourth drive rod (55), and the fifth drive rod (56) are connected in sequence.

4. The backrest-to-wall-adhesive standing seat mechanism according to claim 3, characterized in that, The leg support assembly (3) includes a first leg link (31), a second leg link (32), a third leg link (33), a fourth leg link (34), a fifth leg link (35), and a sixth leg link (36); the first leg link (31), the second leg link (32), the third leg link (33), the fourth leg link (34), the fifth leg link (35), and the sixth leg link (36) are linked together, and a foot support frame (6) is connected to the end of the leg support assembly (3).

5. The backrest-to-wall-adhesive standing seat mechanism according to claim 4, characterized in that, The base (1) includes a bottom frame (11), a pair of oppositely arranged second fixing plates (12), a pair of oppositely arranged first base connecting rods (13), a pair of oppositely arranged second base connecting rods (14), a pair of oppositely arranged base connecting plates (15), a first connecting shaft (16), a pair of oppositely arranged side plates (17), a pair of oppositely arranged traction plates (18), and a second connecting shaft (19); the bottom frame (11), the pair of oppositely arranged second fixing plates (12), the pair of oppositely arranged first base connecting rods (13), the pair of oppositely arranged second base connecting rods (14), the pair of oppositely arranged base connecting plates (15), the first connecting shaft (16), the pair of oppositely arranged side plates (17), the pair of oppositely arranged traction plates (18), and the second connecting shaft (19) are connected in a transmission manner; one end of the drive assembly (7) is connected to the bottom frame (11), and the other end of the drive assembly (7) is connected to the second connecting shaft (19).

6. The backrest wall-adhesive standing seat mechanism according to claim 5, characterized in that, The fifth drive rod (56) is connected to the traction plate (18).

7. The backrest wall-adhesive standing seat mechanism according to claim 6, characterized in that, The drive assembly (7) is a push rod motor. The drive assembly (7) has two reciprocating strokes. In the first reciprocating stroke, the drive assembly (7) drives the seat frame assembly (2) to lift and retract to realize the standing assistance function. In the second reciprocating stroke, the drive assembly (7) drives the leg support assembly (3) to extend and retract.

8. The backrest wall-adhesive standing seat mechanism according to claim 7, characterized in that, It also includes a backrest assembly, which includes a backrest connecting plate (91), a first backrest link (92), a second backrest link (93) and a third backrest link (94); the backrest assembly is connected to the seat frame assembly (2).

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