A multifunctional assembled wheelchair

Abstract

The utility model discloses a multifunctional assembled wheelchair belongs to medical instrument technical field. Including bottom support subassembly with cooperation and assembly bottom support subassembly top back support subassembly, bottom support subassembly includes two L type support frame and two vertical rods, and vertical rod and support frame one to one correspond, the long side end of support frame is provided with the connector, and the connector is set on vertical rod, and vertical rod sets up hollow, back support subassembly includes two outer tube rods and two can splice and assemble backrest board, and backrest board and outer tube rod one to one correspond, the bottom of outer tube rod is detachable connection with vertical rod, and one side of backrest board is rotatably connected with outer tube rod, the inside slide coupling of outer tube rod has the inner tube rod, and the top of inner tube rod is hinged with handle. The utility model discloses a multifunctional assembled wheelchair replaces the walking aid or crutch and uses after back support subassembly dismounts, reaches the effect of the quick replacement tool according to the demand while the effect of the reduction of carrying workload.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to a multifunctional modular wheelchair. Background Technology

[0002] In recent years, with the continuous development of intelligent equipment, the field of medical rehabilitation equipment has also been undergoing continuous reforms. As an essential medical device for rehabilitation patients with limited mobility, wheelchairs play a crucial role in the rehabilitation field.

[0003] In rehabilitation training, patients need to undergo various rehabilitation exercises, alternating between three types of assistive tools: wheelchairs, walking aids, and crutches, depending on the usage scenario and needs. This results in redundant tools during training, making them inconvenient to carry. Utility Model Content

[0004] The technical problem this invention aims to solve is: to address the issue of redundant and inconvenient-to-carry rehabilitation assistive devices, this invention provides a multifunctional modular wheelchair whose components can be quickly disassembled and assembled into the required walking aid or cane, and can be switched for use in different application scenarios, reducing the amount of assistive devices to carry.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a multi-functional assembled wheelchair, including a bottom support component and a top back support component that is fitted to the bottom support component;

[0006] The bottom support assembly includes two L-shaped support frames and two uprights, with each upright corresponding to one of the support frames; the two support frames are horizontally and parallel, and each support frame has a connector on its long side, which is sleeved on the upright; the upright is hollow.

[0007] The back support assembly includes two outer cylindrical rods and two assembleable backrest panels, each corresponding to one of the outer cylindrical rods. The bottom end of each outer cylindrical rod is detachably connected to the upright, and one side of each backrest panel is rotatably connected to the outer cylindrical rod. An inner cylindrical rod is slidably connected inside each outer cylindrical rod, and a handle is hinged to the top of the inner cylindrical rod. The back support assembly and the bottom support assembly can be disassembled by separating the outer cylindrical rods from the upright. When the backrest panels are not disassembled, the back support assembly can be used as a walking aid. After the backrest panels are disassembled, the back support assembly is divided into two branches, with the inner and outer cylindrical rods working together to extend the rod body, which, together with the handle, can be used as a cane. This achieves the effect of reducing the workload of carrying while allowing for quick tool changes as needed.

[0008] Furthermore, a limiting member is movably provided at the bottom of the outer cylinder rod. The limiting member consists of a vertical part and a horizontal part that are perpendicular to each other. One end of the vertical part is fixedly connected to one end of the horizontal part. An auxiliary wheel is rotatably provided at the other end of the horizontal part. The auxiliary wheel is located on the outside of the outer cylinder rod.

[0009] The inner wall of the outer cylinder rod is provided with a limiting ring, the outer side of which engages with the outer cylinder rod. The horizontal plane of the limiting ring is higher than the horizontal plane of the horizontal axis. The other end of the vertical part passes through the opening of the limiting ring, and the rod body of the vertical part and the limiting ring are connected by friction to achieve a movable fit. Thus, the limiting member moves up and down at the limiting ring via the vertical part to adjust the distance between the horizontal part and the bottom of the outer cylinder rod; and by rotating at the limiting ring via the vertical part, it adjusts the specific position of the auxiliary wheel on the outside of the outer cylinder rod and adjusts the wheel surface orientation to adapt to the patient's movement direction.

[0010] Furthermore, a first stop block is provided at the top of the vertical part, and a second stop block is sleeved on the rod body of the vertical part. Both the first stop block and the second stop block are set inside the outer cylinder rod in a clearance fit manner. The axis of the vertical part is perpendicular to the end faces of the first stop block and the second stop block, and a gap is left between the first stop block and the second stop block. The limiting ring is located between the first stop block and the second stop block.

[0011] The distance between the outer side of the first gear block and the axis of the vertical part is A, the distance between the outer side of the second gear block and the axis of the vertical part is B, and the distance between the inner ring of the limiting ring and the axis of the vertical part is less than A and B; thus, the first gear block and the second gear block can ensure that the vertical part does not detach from the outer cylinder rod while not hindering the adjustment of the auxiliary wheel.

[0012] Furthermore, a J-shaped through groove is provided on one side of the upright, with the long side of the through groove parallel to the axial direction of the upright; the vertical end of the through groove extends through the top of the upright, and the hook of the through groove is located along the outer perimeter of the upright; the horizontal part is located on the side of the outer cylinder rod and slides in cooperation with the through groove; thus, the horizontal part provides positioning and guidance for the connection between the outer cylinder rod and the upright. When the horizontal part reaches the bend of the through groove, the vertical part of the limiting member is rotated by the auxiliary wheel, so that the horizontal part rotates to the hook end of the through groove, thereby fixing the outer cylinder rod and the upright.

[0013] Furthermore, a semi-circular groove is provided at the bottom of the outer cylinder rod, and the end face of the groove penetrates the wall of the outer cylinder rod. Multiple grooves are evenly arranged around the circumference. The diameter of the groove is larger than the diameter of the horizontal part. Thus, after the position of the auxiliary wheel is adjusted, the vertical part is pushed, and the vertical part drives the horizontal part to move upward, so that the horizontal part is in the corresponding groove. In this way, the rotation of the vertical part is restricted by restricting the circumferential movement of the horizontal part, thereby further enhancing the stability of the outer cylinder rod and the upright.

[0014] Furthermore, a bench surface is fitted onto the long rod of the support frame. The bench surface is horizontally positioned on one side of the outer cylindrical rod. A C-shaped sleeve is provided on one side of the bench surface. The C-shaped sleeve is fitted onto the corresponding upright of the support frame. The opening of the C-shaped sleeve communicates with the through groove. The two adjacent sides of the bench surfaces are detachably connected. Thus, the bottom support assembly can be disassembled and placed, saving floor space.

[0015] Furthermore, the connector includes a vertical sleeve and a hinge seat. The hinge seat is laterally disposed on one side of the vertical sleeve, and the bottom of the hinge seat is fixedly connected to the vertical sleeve. The vertical sleeve is sleeved on the upright, and an opening is provided on one side of the vertical sleeve, which communicates with a through groove. The end of the hinge seat away from the vertical sleeve is hinged to the support frame. Thus, the connector achieves the connection and fixation between the support frame and the upright without affecting the disassembly and reassembly of the outer cylinder rod and the upright.

[0016] The beneficial effects of this utility model are as follows: the multifunctional modular wheelchair of this utility model is equipped with a detachable back support component, which is stably placed at the rear of the wheelchair when not in use and can be removed to become a walking aid when needed; the backrest panel in the middle of the back support component is designed to be rotatable, so that when used as a walking aid, the backrest panel can be rotated and placed horizontally, allowing the user to sit on it to rest when tired from exercise; the backrest panel in the middle of the back support component is detachable, so that the back support component is divided into two branches, and the outer cylinder rod and inner cylinder rod of the branch are combined with the handle to form a cane; thus, it can be switched for use in different application scenarios, reducing the amount of assistive tools to carry. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the preferred embodiment of the present invention.

[0019] Figure 2 yes Figure 1 A schematic diagram of the bottom support component.

[0020] Figure 3 yes Figure 1 A schematic diagram of the structure of the mid-back support component.

[0021] Figure 4 It is an assembly drawing of the upright through groove, connector, and C-type sleeve.

[0022] Figure 5 It is an assembly diagram of the groove of the outer cylinder rod and the auxiliary wheel.

[0023] Figure 6 This is an assembly drawing of the outer cylinder rod and the limiting component (partially cut open the outer cylinder rod).

[0024] In the diagram: 1. Bottom support assembly; 11. Support frame; 111. Connector; 12. Connecting frame; 13. Upright pole; 131. Through groove; 14. Rear wheel assembly; 15. Front wheel assembly; 16. Foot pedal; 21. Stool surface; 211. C-shaped sleeve; 22. Armrest; 3. Back support assembly; 31. Outer cylinder rod; 311. Groove; 312. Limiting ring; 32. Inner cylinder rod; 33. Handle; 34. Backrest panel; 35. Auxiliary wheel; 41. Limiting component; 42. Gear block one; 43. Gear block two. Detailed Implementation

[0025] Now, in conjunction with the appendix Figures 1-6 The present invention will be described in further detail below. These accompanying drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0026] like Figures 1-6 The figure shown is the preferred embodiment of the present invention, which includes a bottom support component 1 and a top back support component 3 that is fitted to the bottom support component 1.

[0027] Reference Figures 1-3 The bottom support assembly 1 includes two L-shaped support frames 11 and two uprights 13, with each upright corresponding to one of the support frames 11. The two support frames 11 are horizontally and parallel, and a connector 111 is provided on the long side of the support frame 11. The connector 111 is sleeved on the upright 13, and the upright 13 is hollow.

[0028] The connector 111 includes a vertical sleeve and a hinge seat. The hinge seat is horizontally disposed on one side of the vertical sleeve, and the bottom of the hinge seat is fixedly connected to the vertical sleeve. The vertical sleeve is sleeved on the upright 13. An opening is provided on one side of the vertical sleeve, and the opening communicates with the through groove 131. The end of the hinge seat away from the vertical sleeve is hinged to the support frame 11. Thus, the connector 111 achieves the connection and fixation between the support frame 11 and the upright 13 without affecting the disassembly and reassembly of the outer cylinder 31 and the upright 13.

[0029] The back support assembly 3 includes two outer cylindrical rods 31 and two backrest panels 34 that can be spliced ​​and assembled. The backrest panels 34 correspond one-to-one with the outer cylindrical rods 31. The bottom end of the outer cylindrical rod 31 is detachably connected to the upright 13, and one side of the backrest panel 34 is rotatably connected to the outer cylindrical rod 31. An inner cylindrical rod 32 is slidably connected inside the outer cylindrical rod 31, and a handle 33 is hinged to the top of the inner cylindrical rod 32. The handle 33 is at a right angle to the inner cylindrical rod 32.

[0030] Where: Reference Figures 5-6The bottom of the outer cylinder rod 31 is movably provided with a limiting member 41, which consists of a vertical part and a horizontal part that are perpendicular to each other. One end of the vertical part is fixedly connected to one end of the horizontal part. The other end of the horizontal part is rotatably provided with an auxiliary wheel 35, which is located on the outside of the outer cylinder rod 31. The inner wall of the outer cylinder rod 31 is provided with a limiting ring 312, and the outer side of the limiting ring 312 is engaged with the outer cylinder rod 31. The horizontal plane where the limiting ring 312 is located is higher than the horizontal plane where the axis of the horizontal part is located. The other end of the vertical part passes through the ring opening of the limiting ring 312, and the rod body of the vertical part and the limiting ring 312 are movably engaged through friction connection.

[0031] Reference Figure 5 The bottom of the outer cylinder rod 31 is provided with a semi-circular groove 311. The end face of the groove 311 penetrates the rod wall of the outer cylinder rod 31. Multiple grooves 311 are evenly arranged around the circumference. The diameter of the groove 311 is larger than the diameter of the horizontal part.

[0032] Reference Figure 6 The top of the vertical section is provided with a first stop block 42, and the rod body of the vertical section is fitted with a second stop block 43. Both the first stop block 42 and the second stop block 43 are disc-shaped and are set inside the outer cylinder rod 31 with a clearance fit. The axis of the vertical section is perpendicular to the end face of the first stop block 42 and the second stop block 43, and there is a gap between the first stop block 42 and the second stop block 43. The limiting ring 312 is located between the first stop block 42 and the second stop block 43. The diameter of the first stop block 42 and the second stop block 43 is larger than the inner ring diameter of the limiting ring 312.

[0033] Reference Figure 4 A J-shaped through groove 131 is provided on one side of the upright 13, with the long side of the through groove 131 being parallel to the axial direction of the upright 13; the vertical end of the through groove 131 passes through the top of the upright 13, and the hook of the through groove 131 is provided along the outer perimeter of the upright 13; the horizontal part is located on the side of the outer cylinder 31 and slides in cooperation with the through groove 131.

[0034] In addition: Refer to Figures 1-2 A bench surface 21 is fitted onto the long rod of the support frame 11. The bench surface 21 is horizontally positioned. A C-shaped sleeve is provided on one side of the bench surface 21. The C-shaped sleeve is fitted onto the corresponding upright 13 of the support frame 11. The opening of the C-shaped sleeve is connected to the through groove 131. The two bench surfaces 21 are detachably connected on adjacent sides. As a result, the bottom support assembly 1 can be disassembled and placed, saving space.

[0035] A connecting frame 12 is movably installed on the short side of the support frame 11, and a foot pedal 16 is hinged to the end of the connecting frame 12 away from the support frame 11; a front wheel assembly 15 is fixedly installed at the short end of the support frame 11, and a rear wheel assembly 14 is installed at the bottom of the upright 13 through a coupling. Both the rear wheel assembly 14 and the front wheel assembly 15 adopt a wheel structure with a rotating axle.

[0036] The top of the seat 21 is also provided with an armrest 22, which is located directly above the corresponding support frame 11. The armrest 22 is L-shaped, and the short side of the armrest 22 is fixedly connected to the seat 21. The other end of the armrest 22 is provided with a C-shaped retaining ring, which is engaged with the back support component.

[0037] Working principle: When a walking aid is needed, the user can move the outer cylinder rod 31 upwards, and then control the rotation of the limiting member 41 through the auxiliary wheel 35 so that the axis of the horizontal part is perpendicular to the long side cavity surface of the through groove 131. Then, continue to move the outer cylinder rod 31 until it is completely separated from the upright rod 13. Rotate the auxiliary wheel 35 again so that the auxiliary wheel 35 is located on the left and right sides of the outer cylinder rod. Then, pull the inner cylinder rod 32 to move it upwards along the axis to a suitable height for use. When a cane is needed, remove the backrest panel, repeat the above steps, and remove the outer cylinder rod 31 on one side for use.

[0038] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A multifunctional modular wheelchair, characterized in that: Includes a bottom support assembly (1) and a top back support assembly (3) that mates with the bottom support assembly (1); The bottom support assembly (1) includes two L-shaped support frames (11) and two uprights (13), with each upright (13) corresponding to one of the support frames (11). The two support frames (11) are arranged horizontally and in parallel. A connector (111) is provided at the long side end of each support frame (11), and the connector (111) is sleeved on the upright (13). The upright (13) is hollow. The back support assembly (3) includes two outer cylindrical rods (31) and two spliced ​​backrests (34), with each backrest (34) corresponding to one of the outer cylindrical rods (31). The bottom end of the outer cylindrical rod (31) is detachably connected to the upright (13), and one side of the backrest (34) is rotatably connected to the outer cylindrical rod (31). An inner cylindrical rod (32) is slidably connected inside the outer cylindrical rod (31), and a handle (33) is hinged to the top of the inner cylindrical rod (32).

2. The multifunctional modular wheelchair as described in claim 1, characterized in that: The bottom of the outer cylinder rod (31) is movably provided with a limiting member (41), which includes a vertical part and a horizontal part that are perpendicular to each other. One end of the vertical part is fixedly connected to one end of the horizontal part. The other end of the horizontal part is rotatably provided with an auxiliary wheel (35), which is located on the outside of the outer cylinder rod (31).

3. The multifunctional modular wheelchair as described in claim 2, characterized in that: The inner wall of the outer cylinder rod (31) is provided with a limiting ring (312). The outer side of the limiting ring (312) is engaged with the outer cylinder rod (31). The horizontal plane where the limiting ring (312) is located is higher than the horizontal plane where the axis of the horizontal part is located. The other end of the vertical part passes through the ring opening of the limiting ring (312), and the rod body of the vertical part and the limiting ring (312) are connected by friction to achieve a movable fit.

4. The multifunctional modular wheelchair as described in claim 3, characterized in that: The top of the vertical part is provided with a gear block 1 (42), and the rod body of the vertical part is fitted with a gear block 2 (43). The gear block 1 (42) and the gear block 2 (43) are both set inside the outer cylinder rod (31) in a clearance fit manner. The axis of the vertical part is perpendicular to the end face of the gear block 1 (42) and the gear block 2 (43), and there is a gap between the gear block 1 (42) and the gear block 2 (43). The limiting ring (312) is located between the gear block 1 (42) and the gear block 2 (43).

5. The multifunctional modular wheelchair as described in claim 4, characterized in that: The distance between the outer side of the gear block one (42) and the vertical axis is A, the distance between the outer side of the gear block two (43) and the vertical axis is B, and the distance between the inner ring of the limiting ring (312) and the vertical axis is less than A and B.

6. The multifunctional modular wheelchair as described in claim 4, characterized in that: A J-shaped through groove (131) is provided on one side of the upright (13), and the long side of the through groove (131) is parallel to the axial direction of the upright (13). The vertical end of the through groove (131) passes through the top of the upright (13), and the hook of the through groove (131) is provided along the outer perimeter of the upright (13). The horizontal part is located on the side of the outer cylinder (31) and slides in cooperation with the through groove (131).

7. The multifunctional modular wheelchair as described in claim 6, characterized in that: The bottom of the outer cylinder rod (31) is provided with a semi-circular groove (311), the end face of the groove (311) penetrates the rod wall of the outer cylinder rod (31), and multiple grooves (311) are evenly arranged around the circumference; the diameter of the groove (311) is larger than the diameter of the horizontal part.

8. The multifunctional modular wheelchair as described in claim 7, characterized in that: A bench surface (21) is fitted onto the long rod of the support frame (11). The bench surface (21) is horizontally positioned on one side of the outer cylinder rod (31). A C-shaped sleeve is provided on one side of the bench surface (21). The C-shaped sleeve is fitted onto the corresponding upright rod (13) of the support frame (11). The opening of the C-shaped sleeve is connected to the through groove (131). The two bench surfaces (21) are detachably connected on adjacent sides.

9. The multifunctional modular wheelchair as described in claim 8, characterized in that: The connector (111) includes a vertical sleeve and a hinge seat. The hinge seat is horizontally disposed on one side of the vertical sleeve, and the bottom of the hinge seat is fixedly connected to the vertical sleeve. The vertical sleeve is sleeved on the upright (13). An opening is provided on one side of the vertical sleeve, and the opening communicates with the through groove (131). The end of the hinge seat away from the vertical sleeve is hinged to the support frame (11).

Images