Multi-petal bionic folding mechanical iris supporting arm structure

Abstract

The utility model discloses a multi-petal bionic folding mechanical iris supporting arm structure which comprises an iris assembly which comprises a seat frame, a screw, a mounting frame, a through hole, a mounting groove, a first rotating shaft, an arc-shaped mechanical petal, a second rotating shaft, an arc-shaped pull arm, a third rotating shaft and an adjusting ring. The front portion and the rear portion of the upper surface of the seat frame are fixedly connected with a mounting frame through a plurality of screws. The bionic iris structure is combined with the wheelchair through the seat frame, the mounting frame, the multi-shaft linkage arc-shaped mechanical petals, the adjusting ring and the like, the adjusting ring, the arc-shaped pull arm and the arc-shaped mechanical petals are driven to be linked by pulling the opening and closing handle, controllable opening and closing of the defecation hole are achieved, the through hole is completely covered when the defecation hole is closed, peculiar smell is blocked, and the wheelchair is convenient to use. When the wheelchair is opened, a excretion channel is formed, the problem that a traditional wheelchair lacks a defecation function is solved, autonomous operation can be achieved without transferring, safety accidents such as falling down caused by improper operation are avoided, and independence and nursing efficiency of people with mobility difficulties are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of wheelchair technology, specifically to a multi-lobed bionic folding mechanical iris support arm structure. Background Technology

[0002] Wheelchairs, as a crucial assistive mobility tool for people with mobility impairments, play an indispensable role in daily life. They are based on a carefully designed wheeled mobility system, combined with a sturdy frame and a comfortable seat. For people with limb disabilities, whether lower limb amputations or paralysis, wheelchairs can replace their lost mobility, allowing them to move freely in indoor and outdoor spaces. For the elderly and frail, wheelchairs alleviate the difficulty of walking caused by declining physical function, allowing them to easily go out and about. Other individuals with limited mobility, such as patients in post-operative rehabilitation, can also regain a degree of autonomy with the help of wheelchairs.

[0003] Traditional wheelchairs are typically used only as mobility tools and are difficult to use independently for toileting. When using the toilet, caregivers are needed to assist with actions such as getting up and moving to the toilet, which is not only labor-intensive but also prone to accidents such as falls due to improper operation. In addition, although some existing wheelchairs are equipped with a defecation hole, it is not easy to seal the hole after defecation, which not only easily emits odors but also affects the user's comfort during prolonged sitting. To address this, a multi-lobed bionic folding mechanical iris support arm structure is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a multi-lobed biomimetic folding mechanical iris support arm structure to solve one of the problems mentioned in the background art.

[0005] This utility model is implemented by the following technical solution: a multi-lobed bionic folding mechanical iris support arm structure, including an iris component, wherein the iris component includes a base, screws, mounting bracket, through hole, mounting groove, first rotating shaft, arc-shaped mechanical lobe, second rotating shaft, arc-shaped pull arm, third rotating shaft and adjusting ring;

[0006] The upper surface of the base is fixedly connected to the front and rear of the mounting bracket by multiple screws. A through hole is opened at the center of the upper surface of the mounting bracket. A mounting groove is opened on the lower surface of the mounting bracket near the outer side of the through hole. Multiple first rotating shafts are fixedly connected to the inner top wall of the mounting groove near the outer side of the through hole in a circular shape. The outer side wall of each of the multiple first rotating shafts is rotatably connected to an arc-shaped mechanical flap. The outer side of the lower surface of each of the multiple arc-shaped mechanical flaps is rotatably connected to an arc-shaped pull arm through a second rotating shaft. The end of each of the multiple arc-shaped pull arms away from the arc-shaped mechanical flap is rotatably connected to an adjusting ring through a third rotating shaft. The outer side wall of the adjusting ring is rotatably connected to the inner side wall of the mounting groove.

[0007] As a further preferred embodiment of this technical solution: multiple limiting posts are fixedly connected to the outer side of the inner top wall of the mounting groove in a circular shape, and multiple arc-shaped limiting grooves are opened on the upper surface of the adjusting ring in a circular shape, and the outer side wall of the limiting post is slidably connected to the inner side wall of the arc-shaped limiting groove.

[0008] As a further preferred embodiment of this technical solution: an opening and closing handle is fixedly connected to one side of the outer wall of the adjusting ring via a connecting rod.

[0009] As a further preferred embodiment of this technical solution: the bottom of the outer side wall of the first rotating shaft, the second rotating shaft, the third rotating shaft and the limiting post are fixedly connected with limiting clips.

[0010] As a further preferred embodiment of this technical solution: a seat cushion is fixedly connected to the upper surface of the mounting bracket, and a defecation hole is provided at the center of the upper surface of the seat cushion.

[0011] As a further preferred embodiment of this technical solution: both sides of the mounting frame are fixedly connected to support blocks, and the lower surfaces of the two support blocks are respectively attached to the middle of the upper surface of the base frame on both sides.

[0012] As a further preferred embodiment of this technical solution: the bottom of the seat frame is fixedly connected to the wheelchair body.

[0013] As a further preferred embodiment of this technical solution: armrests are welded to both sides of the upper surface of the seat frame.

[0014] Advantages of this invention: This invention combines a bionic iris structure with a wheelchair through a seat frame, mounting frame, and multi-axis linkage arc-shaped mechanical flaps and adjusting rings. By pulling the opening and closing handle, the adjusting ring, arc-shaped pull arm, and arc-shaped mechanical flaps are linked, enabling controllable opening and closing of the defecation hole. When closed, it completely covers the hole to block odors, and when open, it forms a defecation channel. This solves the problem of the lack of toilet function in traditional wheelchairs. It can be operated independently without transfer, avoiding safety accidents such as falls caused by improper operation, and significantly improving the independence and care efficiency of people with mobility impairments. Attached Figure Description

[0015] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2This is a schematic diagram of the mounting frame and seat cushion structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the mounting bracket and adjusting ring structure of this utility model;

[0019] Figure 4 This utility model Figure 3 A schematic diagram of the explosion structure.

[0020] In the diagram: 1. Iris module; 10. Screw; 11. Seat frame; 12. Mounting bracket; 13. Through hole; 14. Mounting groove; 15. First pivot; 16. Arc-shaped mechanical flap; 17. Second pivot; 18. Arc-shaped pull arm; 19. Third pivot; 20. Adjusting ring; 21. Limiting post; 22. Arc-shaped limiting groove; 23. Connecting rod; 24. Opening and closing handle; 25. Limiting clip; 26. Seat cushion; 27. Defecation hole; 28. Support block; 29. ​​Wheelchair body; 30. Armrest. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example

[0023] Please see Figures 1-4 This utility model provides a technical solution: a multi-lobed bionic folding mechanical iris support arm structure, including an iris component 1, the iris component 1 including a base 11, screws 10, mounting brackets 12, through holes 13, mounting grooves 14, a first rotating shaft 15, an arc-shaped mechanical lobe 16, a second rotating shaft 17, an arc-shaped pull arm 18, a third rotating shaft 19 and an adjusting ring 20;

[0024] A mounting bracket 12 is fixedly connected to the front and rear parts of the upper surface of the base 11 by multiple screws 10. A through hole 13 is opened at the center of the upper surface of the mounting bracket 12. A mounting groove 14 is opened on the outer side of the lower surface of the mounting bracket 12 near the through hole 13. Multiple first rotating shafts 15 are fixedly connected to the inner top wall of the mounting groove 14 near the outer side of the through hole 13 in a circular shape. Arc-shaped mechanical flaps 16 are rotatably connected to the outer side walls of the multiple first rotating shafts 15. Arc-shaped pull arms 18 are rotatably connected to the outer side of the lower surface of the multiple arc-shaped mechanical flaps 16 via second rotating shafts 17. The multiple arc-shaped pull arms 18 are located away from the arc-shaped mechanical flaps 16. One end of the device is rotatably connected to an adjusting ring 20 via a third rotating shaft 19. The outer side wall of the adjusting ring 20 is rotatably connected to the inner side wall of the mounting groove 14. Using multiple first rotating shafts 15 distributed circumferentially along the inner top wall of the mounting groove 14 as fulcrums, the arc-shaped mechanical petals 16 can rotate around the first rotating shafts 15, so that each arc-shaped mechanical petal 16 can swing independently. At the same time, the circumferential array forms an iris-like opening and closing effect, thereby accurately covering or exposing the through hole 13. By rotating the adjusting ring 20 inside the mounting groove 14, the adjusting ring 20 is limited, thereby increasing the stability of the rotation of the adjusting ring 20.

[0025] In this embodiment, specifically: multiple limiting posts 21 are fixedly connected to the outer side of the inner top wall of the mounting groove 14 in a circular shape, and multiple arc-shaped limiting grooves 22 are opened on the upper surface of the adjusting ring 20 in a circular shape. The outer side wall of the limiting post 21 is slidably connected to the inner side wall of the arc-shaped limiting groove 22. By sliding along the limiting post 21 through the arc-shaped limiting groove 22 on the adjusting ring 20, the rotation angle of the adjusting ring 20 is limited, thereby limiting the maximum opening and closing angle of the arc-shaped mechanical flap 16.

[0026] In this embodiment, specifically: an opening and closing handle 24 is fixedly connected to one side of the outer wall of the adjusting ring 20 via a connecting rod 23. The opening and closing handle 24 on the connecting rod 23 facilitates the rotation of the adjusting ring 20, thereby realizing the synchronous opening and closing operation of multiple arc-shaped mechanical petals 16.

[0027] In this embodiment, specifically: the bottom of the outer side wall of the first rotating shaft 15, the second rotating shaft 17, the third rotating shaft 19 and the limiting post 21 are fixedly connected with limiting clips 25. Through the limiting clips 25 on the first rotating shaft 15, the second rotating shaft 17, the third rotating shaft 19 and the limiting post 21, the components such as the arc-shaped mechanical flap 16, the arc-shaped pull arm 18 and the adjusting ring 20 are respectively limited, thereby preventing the components from falling off.

[0028] In this embodiment, specifically: a seat cushion 26 is fixedly connected to the upper surface of the mounting bracket 12, and a defecation hole 27 is provided at the center of the upper surface of the seat cushion 26, so that the user can defecate through the defecation hole 27 on the seat cushion 26.

[0029] In this embodiment, specifically: support blocks 28 are fixedly connected to both sides of the mounting frame 12. The lower surfaces of the two support blocks 28 are respectively attached to the middle of the upper surface of the seat frame 11. The support of the mounting frame 12 by the two support blocks 28 increases the firmness of the mounting frame 12 and prevents the mounting frame 12 from deforming.

[0030] In this embodiment, specifically: the bottom of the seat frame 11 is fixedly connected to the wheelchair body 29. The seat frame 11 serves as a carrier for installing the iris component 1 and the seat cushion 26. By fixing the wheelchair body 29, the toilet function module and the wheelchair's mobility function are integrated into a whole, enabling the wheelchair to have the combined functions of riding, mobility, and independent toileting. The wheelchair body 29 typically includes the wheel set, frame, and other basic structures of the wheelchair. The fixed connection between the seat frame 11 and the wheelchair body 29 ensures that the user's weight and the force exerted when the mechanical flaps open and close can be stably transmitted to the wheelchair body 29 through the seat frame 11, ensuring the mechanical stability of the overall structure.

[0031] In this embodiment, specifically: armrests 30 are welded to both sides of the upper surface of the seat frame 11. The armrests 30 make it convenient for users to grasp the armrests 30 when riding in a wheelchair, maintain body balance, and improve safety, especially during wheelchair movement. At the same time, when users get up or sit down, they can adjust their posture with the support of the armrests 30, reducing the risk of falling due to insufficient strength. In addition, the armrests 30 can provide a place for users' arms, avoiding fatigue caused by arms hanging in the air and improving comfort during long-term riding.

[0032] In terms of working principle or structural principle, during normal use, the user sits on the seat cushion 26, with the armrests 30 providing arm support, and the wheelchair body 29 can move freely. At this time, the adjusting ring 20 is in its initial position, and the arc-shaped pull arm 18 pulls all the arc-shaped mechanical flaps 16 towards the center to completely cover the through hole 13 on the mounting frame 12, forming a closed state. When it is necessary to open the through hole 13 for defecation, the user or caregiver holds the opening and closing handle 24 and rotates the adjusting ring 20. When the adjusting ring 20 rotates, it drives the third rotating shaft 19 to... The arc-shaped pull arm 18 moves, and the arc-shaped pull arm 18 pulls the arc-shaped mechanical flap 16 to rotate outward around the first rotating shaft 15 via the second rotating shaft 17. Multiple arc-shaped mechanical flaps 16 open simultaneously, exposing the through hole 13 and the defecation hole 27, forming a defecation channel that connects to the toilet adapted to the wheelchair. The user can defecate directly in the wheelchair through the defecation channel without having to be transferred to the toilet, reducing the burden of care. After defecation, the operating handle 24 rotates the adjusting ring 20 counterclockwise, and the arc-shaped pull arm 18 pulls the arc-shaped mechanical flap 16 back to the center, covering the defecation hole 27 again.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-lobed biomimetic folding mechanical iris support arm structure, characterized in that, The iris assembly (1) includes a base (11), screws (10), mounting bracket (12), through hole (13), mounting groove (14), first rotating shaft (15), arc-shaped mechanical flap (16), second rotating shaft (17), arc-shaped pull arm (18), third rotating shaft (19) and adjusting ring (20). The upper surface of the bracket (11) is fixedly connected to the front and rear of the mounting bracket (12) by a plurality of screws (10). A through hole (13) is provided at the center of the upper surface of the mounting bracket (12). A mounting groove (14) is provided on the lower surface of the mounting bracket (12) near the outer side of the through hole (13). A plurality of first rotating shafts (15) are fixedly connected in a circular shape on the inner top wall of the mounting groove (14) near the outer side of the through hole (13). An arc-shaped mechanical flap (16) is rotatably connected to the outer side of the lower surface of the plurality of arc-shaped mechanical flaps (16). An arc-shaped pull arm (18) is rotatably connected to the outer side of the lower surface of the plurality of arc-shaped mechanical flaps (16) through a second rotating shaft (17). An adjusting ring (20) is rotatably connected to the end of the plurality of arc-shaped pull arms (18) away from the arc-shaped mechanical flaps (16) through a third rotating shaft (19). The outer side wall of the adjusting ring (20) is rotatably connected to the inner side wall of the mounting groove (14).

2. The multi-lobed biomimetic folding mechanical iris support arm structure according to claim 1, characterized in that, The outer side of the inner top wall of the mounting groove (14) is fixedly connected with multiple limiting posts (21) in a circular shape. The upper surface of the adjusting ring (20) is provided with multiple arc-shaped limiting grooves (22) in a circular shape. The outer side wall of the limiting post (21) is slidably connected to the inner side wall of the arc-shaped limiting groove (22).

3. The multi-lobed biomimetic folding mechanical iris support arm structure according to claim 1, characterized in that, An opening and closing handle (24) is fixedly connected to one side of the outer wall of the adjusting ring (20) via a connecting rod (23).

4. The multi-lobed biomimetic folding mechanical iris support arm structure according to claim 2, characterized in that, Limiting clips (25) are fixedly connected to the bottom of the outer side walls of the first rotating shaft (15), the second rotating shaft (17), the third rotating shaft (19) and the limiting post (21).

5. The multi-lobed biomimetic folding mechanical iris support arm structure according to claim 1, characterized in that, A seat cushion (26) is fixedly connected to the upper surface of the mounting bracket (12), and a defecation hole (27) is provided at the center of the upper surface of the seat cushion (26).

6. The multi-lobed biomimetic folding mechanical iris support arm structure according to claim 1, characterized in that, Both sides of the mounting bracket (12) are fixedly connected to support blocks (28), and the lower surfaces of the two support blocks (28) are respectively attached to the middle of the upper surface of the seat frame (11).

7. The multi-lobed biomimetic folding mechanical iris support arm structure according to claim 1, characterized in that, The bottom of the seat frame (11) is fixedly connected to the wheelchair body (29).

8. The multi-lobed biomimetic folding mechanical iris support arm structure according to claim 1, characterized in that, Handrails (30) are welded to both sides of the upper surface of the seat frame (11).

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