A foldable storage wheelchair

Abstract

This utility model relates to the field of medical devices, specifically a foldable wheelchair, including a main bearing shaft and a folding assembly. The main bearing shaft has two rotating grooves on its surface, and the folding assembly is rotatably connected to the inner walls of the rotating grooves. The folding assembly includes a flip-up seat plate rotatably connected to the inner walls of the two rotating grooves. The surface of the flip-up seat plate has a storage groove, and armrests are rotatably connected to the inner walls of the storage groove. Two support frames are fixedly connected to the bottom of the two flip-up seat plates, and fixed support rods are fixedly connected to the surfaces of the two support frames. T-shaped rotating cylinders are rotatably connected to the surfaces of the fixed support rods. This utility model, by setting up a main bearing shaft and a folding assembly, reduces space occupation and enhances structural stability. Furthermore, when the wheelchair needs to be folded, the backrest can be disassembled, further reducing the folded volume. The entire folding assembly is rationally designed, achieving convenient folding and storage of the wheelchair and greatly reducing space occupation.

Description

Technical Field

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

[0002] In daily life, the size and storage problems of traditional wheelchairs are becoming increasingly apparent. To ensure stability and functionality, most traditional wheelchairs have a fixed and non-disassembly structure, which means they occupy a lot of space when not in use.

[0003] Most existing equipment adopts a fixed and non-removable structure, which results in a large space being occupied when not in use. The folding design is unreasonable, and the size is still large after folding, making it difficult to meet the storage needs in environments with limited space. Furthermore, it is difficult to prevent wheelchairs from folding or unfolding accidentally during use, which cannot guarantee the safety of users. Utility Model Content

[0004] The purpose of this invention is to solve the problems of inconvenient folding, large storage volume, and accidental folding or unfolding of existing wheelchairs, and to propose a foldable wheelchair.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a foldable wheelchair, comprising a main bearing shaft and a folding assembly, wherein two rotating grooves are formed on the surface of the main bearing shaft, and the folding assembly is rotatably connected to the inner wall of the rotating grooves. The folding assembly includes a flip-up seat plate rotatably connected to the inner wall of the two rotating grooves. A storage groove is formed on the surface of the flip-up seat plate, and a handle is rotatably connected to the inner wall of the storage groove. Two support frames are fixedly connected to the bottom of the two flip-up seat plates, and fixed support rods are fixedly connected to the surfaces of the two support frames. A T-shaped rotating cylinder is rotatably connected to the surface of the fixed support rods.

[0006] Furthermore, the surface of the T-shaped rotating cylinder is provided with a threaded groove, the inner wall of the threaded groove is threaded with a threaded connector, and the top of the T-shaped rotating cylinder and the threaded connector is provided with a slot.

[0007] Furthermore, a screw is inserted into the inner wall of the slot, and the surface of the screw is inserted into the T-shaped rotating cylinder and the threaded connector.

[0008] Furthermore, a nut is threaded onto the surface of the screw, and a movable wheel is fixedly connected to one end of the threaded connector.

[0009] Furthermore, an L-shaped insert is fixedly connected to the surface of the support frame, and a backrest is threadedly connected to the inner wall of the L-shaped insert.

[0010] Furthermore, a locking assembly is fixedly connected to one end of each of the two fixed support rods. The locking assembly includes a locking cylinder fixedly connected to one end of the fixed support rod. A cross-shaped limiting groove is formed on the surface of the locking cylinder, a cylinder cavity is formed on the inner wall of the locking cylinder, and a spiral pattern is formed on the surface of the locking cylinder.

[0011] Furthermore, a cross-shaped insert is inserted into and rotatably connected to the inner wall of the cylinder cavity, a throttle is fixedly connected to the surface of the cross-shaped insert, a locking screw is inserted into the surface of the throttle, the inner wall of the locking screw is threadedly connected to the spiral thread, the surface of the throttle is inserted into the telescopic member, and a soft pad is sleeved on the surface of the flip seat plate and the backrest.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, by setting a main bearing shaft and a folding assembly, the main bearing shaft is used as the core support component. The rotating groove on its surface provides a rotating connection base for the flip seat plate of the folding assembly, allowing the flip seat plate to flip and fold around the main bearing shaft. The storage groove on the surface of the flip seat plate can rotate and store the armrests, reducing space occupation. The fixed support rod connects two support frames, enhancing the stability of the structure. The threaded groove on the surface of the T-shaped rotating cylinder is threadedly connected to the threaded connector. A screw is inserted into the slot, and the screw and nut cooperate to further fix the relative position of the threaded connector and the T-shaped rotating cylinder, ensuring the stability of the moving wheels during use. The L-shaped insert is threadedly connected to the backrest, which is convenient for installation and disassembly of the backrest. When the wheelchair needs to be folded, the backrest can be disassembled to further reduce the volume after folding. The entire folding assembly is reasonably designed, realizing convenient folding and storage of the wheelchair and greatly reducing space occupation.

[0014] 2. In this utility model, by setting a locking component, the locking cylinder provides a stable installation base for the entire locking structure. The cross-shaped limiting groove precisely limits the rotation range of the cross-shaped insert, preventing excessive rotation and ensuring that the wheelchair remains stable in both unfolded and folded states. When the user controls the throttle, the cross-shaped insert is inserted vertically into the cross-shaped limiting groove, and then the throttle is turned to control the cross-shaped insert to rotate within the cylinder cavity of the locking cylinder for locking. The locking screw is connected to the spiral thread on the surface of the locking cylinder, which can lock the cross-shaped insert in a specific position, preventing the wheelchair from folding or unfolding due to accidental force during user use, effectively avoiding user falls and injuries, and providing comprehensive safety protection for the user. The telescopic component can extend and retract according to the unfolded or folded state of the wheelchair, improving the convenience of wheelchair use. Attached Figure Description

[0015] Figure 1 A three-dimensional front view of a foldable wheelchair is provided for this utility model;

[0016] Figure 2 A three-dimensional view of the internal structure of a foldable wheelchair is provided for this utility model.

[0017] Figure 3 A side perspective view of a foldable and storable wheelchair is provided for this utility model.

[0018] Figure 4 This utility model presents a structural diagram of a foldable and storable wheelchair with a separate seat back.

[0019] Figure 5 This invention provides a schematic diagram showing the structural breakdown of a foldable and retractable wheelchair.

[0020] Figure 6 This invention presents a structural schematic diagram of a locking component in a foldable and retractable wheelchair.

[0021] Legend:

[0022] 1. Main bearing; 2. Folding assembly; 21. Flip seat plate; 22. Storage slot; 23. Handle; 24. Support frame; 25. Fixed support rod; 26. T-shaped rotating cylinder; 27. Threaded groove; 28. Threaded connector; 29. ​​Slot; 210. Screw; 211. Nut; 212. Caster wheel; 213. L-shaped insert; 214. Backrest; 3. Locking assembly; 31. Locking cylinder; 32. Cross limit groove; 33. Spiral pattern; 34. Cross insert; 35. Turn handle; 36. Locking screw cylinder; 37. Telescopic component; 4. Soft pad cover. Detailed Implementation

[0023] Please see Figure 1-6 This utility model provides a technical solution: a foldable wheelchair, including a main bearing 1 and a folding assembly 2. The surface of the main bearing 1 has two rotating grooves, and the folding assembly 2 is rotatably connected to the inner wall of the rotating grooves.

[0024] The specific settings and functions of its folding component 2 and locking component 3 will be explained below.

[0025] In this embodiment: the folding assembly 2 includes a flipping seat plate 21 rotatably connected to the inner wall of two rotating slots. The surface of the flipping seat plate 21 is provided with a storage slot 22. The inner wall of the storage slot 22 is rotatably connected with a handle 23. The bottom of the two flipping seat plates 21 is fixedly connected with two support frames 24. The surface of the two support frames 24 is fixedly connected with a fixed support rod 25. The surface of the fixed support rod 25 is rotatably connected with a T-shaped rotating cylinder 26.

[0026] The above components achieve the following effects: by setting the main bearing shaft 1 to provide a rotation base for the flip seat plate 21 to achieve folding, the storage slot 22 facilitates the storage of the handle 23, the support frame 24 and the fixed support rod 25 provide stable support, and the T-shaped rotating cylinder 26 is used to rotate to the folding moving wheel 212.

[0027] Specifically, the surface of the T-shaped rotating drum 26 is provided with a threaded groove 27, and the inner wall of the threaded groove 27 is threadedly connected with a threaded connector 28. The top of the T-shaped rotating drum 26 and the threaded connector 28 is provided with a slot 29.

[0028] The effect achieved by the above components is as follows: the moving wheel 212 is fixed by the threaded groove 27 cooperating with the threaded connector 28, and the slot 29 is used to insert the screw 210 to fix the position of the threaded connector 28.

[0029] Specifically, a screw 210 is inserted and connected to the inner wall of the slot 29, and the surface of the screw 210 is inserted and connected to the T-shaped rotating cylinder 26 and the threaded connector 28.

[0030] The effect achieved by the above components is to ensure the stability of the moving wheel 212 by setting the screw 210 to fix the relative position of the T-shaped rotating cylinder 26 and the threaded connector 28.

[0031] Specifically, the screw 210 has a nut 211 threadedly connected to its surface, and a movable wheel 212 is fixedly connected to one end of the threaded connector 28.

[0032] The effect achieved by the above components is as follows: by setting the nut 211 to cooperate with the screw 210 to fasten the components, the moving wheelchair can be moved by the moving wheel 212.

[0033] Specifically, an L-shaped insert 213 is fixedly connected to the surface of the support frame 24, and a backrest 214 is threadedly connected to the inner wall of the L-shaped insert 213.

[0034] The effect achieved by the above components is that the L-shaped insert 213 facilitates the installation and removal of the backrest 214, and also makes it easier to reduce the volume when folded.

[0035] Specifically, a locking assembly 3 is fixedly connected to one end of each of the two fixed support rods 25. The locking assembly 3 includes a locking cylinder 31 fixedly connected to one end of the fixed support rod 25. A cross-shaped limiting groove 32 is provided on the surface of the locking cylinder 31, a cylinder cavity is provided on the inner wall of the locking cylinder 31, and a spiral pattern 33 is provided on the surface of the locking cylinder 31.

[0036] The effect achieved by the above components is as follows: by setting the cross limit groove 32, the rotation range of the cross insert 34 can be limited; the cylinder cavity provides rotation space for the cross insert 34; the spiral pattern 33 cooperates with the locking screw cylinder 36 to realize the locking and unlocking of the cross insert 34.

[0037] Specifically, a cross-shaped insert 34 is inserted into and rotatably connected to the inner wall of the cylinder cavity. A throttle 35 is fixedly connected to the surface of the cross-shaped insert 34. A locking screw 36 is inserted into and connected to the surface of the throttle 35. The inner wall of the locking screw 36 is threadedly connected to the spiral thread 33. The surface of the throttle 35 is inserted into and connected to the telescopic member 37. A soft pad 4 is sleeved on the surface of the flip seat plate 21 and the backrest member 214.

[0038] The effect achieved by the above components is that by setting the locking screw 36 to be threadedly connected to the spiral thread 33, the rotation of the cross insert 34 can be locked or unlocked, preventing the wheelchair from being accidentally folded or unfolded during use, thus ensuring the safety of the user.

[0039] Working principle: By setting up the main bearing shaft 1 and the folding assembly 2, the main bearing shaft 1 serves as the core support component. The rotating groove on its surface provides a rotating connection base for the flipping seat plate 21 of the folding assembly 2, allowing the flipping seat plate 21 to flip and fold around the main bearing shaft 1. The storage groove 22 on the surface of the flipping seat plate 21 can rotate and store the handle 23, reducing space occupation. The fixed support rod 25 connects the two support frames 24, enhancing the stability of the structure. The threaded groove 27 on the surface of the T-shaped rotating cylinder 26 is threaded to the threaded connector 28. Next, a screw 210 is inserted into the slot 29. The screw 210 cooperates with the nut 211 to further fix the relative position of the threaded connector 28 and the T-shaped rotating cylinder 26, ensuring the stability of the moving wheel 212 during use. The L-shaped insert 213 is threadedly connected to the backrest 214, which facilitates the installation and removal of the backrest 214. When the wheelchair needs to be folded, the backrest 214 can be removed to further reduce the volume after folding. The entire folding assembly 2 is reasonably designed, realizing the convenient folding and storage of the wheelchair and greatly reducing the space occupied.

[0040] By setting the locking component 3, the locking cylinder 31 provides a stable installation base for the entire locking structure. The cross limit groove 32 precisely limits the rotation range of the cross insert 34 to prevent excessive rotation and ensure that the wheelchair remains stable in the unfolded or folded state. When the user controls the handle 35, the cross insert 34 is inserted vertically into the cross limit groove 32, and then the handle 35 is rotated to control the cross insert 34 to rotate in the cylinder cavity of the locking cylinder 31 for locking. The locking screw cylinder 36 is threaded to the spiral thread 33 on the surface of the locking cylinder 31, which can lock the cross insert 34 in a specific position to prevent the wheelchair from folding or unfolding due to accidental force during use, effectively avoiding user falls and injuries, and providing comprehensive safety protection for the user. The telescopic component 37 can extend and retract according to the unfolded or folded state of the wheelchair, improving the convenience of wheelchair use.

Claims

1. A foldable wheelchair, comprising a main bearing (1) and a folding assembly (2), characterized in that: Two rotating grooves are opened on the surface of the main bearing shaft (1). The folding assembly (2) is rotatably connected to the inner wall of the rotating groove. The folding assembly (2) includes a flip seat plate (21) rotatably connected to the inner wall of the two rotating grooves. A storage groove (22) is opened on the surface of the flip seat plate (21). A handle (23) is rotatably connected to the inner wall of the storage groove (22). Two support frames (24) are fixedly connected to the bottom of the two flip seat plates (21). A fixed support rod (25) is fixedly connected to the surface of the two support frames (24). A T-shaped rotating cylinder (26) is rotatably connected to the surface of the fixed support rod (25).

2. The foldable wheelchair according to claim 1, characterized in that: The surface of the T-shaped rotating cylinder (26) is provided with a threaded groove (27), and the inner wall of the threaded groove (27) is threaded with a threaded connector (28). The top of the T-shaped rotating cylinder (26) and the threaded connector (28) is provided with a slot (29).

3. A foldable and storable wheelchair according to claim 2, characterized in that: The inner wall of the slot (29) is fitted with a screw (210), and the surface of the screw (210) is fitted with the T-shaped rotating cylinder (26) and the threaded connector (28).

4. A foldable and storable wheelchair according to claim 3, characterized in that: The screw (210) is threaded with a nut (211), and one end of the threaded connector (28) is fixedly connected with a movable wheel (212).

5. A foldable and storable wheelchair according to claim 1, characterized in that: The surface of the support frame (24) is fixedly connected to an L-shaped insert (213), and the inner wall of the L-shaped insert (213) is threadedly connected to a backrest (214).

6. A foldable and storable wheelchair according to claim 1, characterized in that: One end of each of the two fixed support rods (25) is fixedly connected to a locking assembly (3). The locking assembly (3) includes a locking cylinder (31) fixedly connected to one end of the fixed support rod (25). A cross-shaped limiting groove (32) is provided on the surface of the locking cylinder (31). A cylinder cavity is provided on the inner wall of the locking cylinder (31). A spiral pattern (33) is provided on the surface of the locking cylinder (31).

7. A foldable and storable wheelchair according to claim 6, characterized in that: A cross insert (34) is inserted into and rotatably connected to the inner wall of the cylinder cavity. A throttle (35) is fixedly connected to the surface of the cross insert (34). A locking screw (36) is inserted into the surface of the throttle (35). The inner wall of the locking screw (36) is threadedly connected to the spiral (33). The surface of the throttle (35) is inserted into the telescopic member (37). A soft pad (4) is sleeved on the surface of the flip seat plate (21) and the backrest member (214).

Images