A quick-release wheelchair armrest connection structure

Abstract

This utility model relates to a quick-release wheelchair armrest connection structure, belonging to the technical field of wheelchair armrest connection structures. It includes a wheelchair body and two armrest frames. The wheelchair body is equipped with a disassembly and assembly assembly, which includes two insertion holes on the front and rear sides of the upper surface of the wheelchair body. The armrest frames on both sides are slidably inserted into the insertion holes on both sides. Each armrest frame has several slots on one opposite side of its inner cavity. This quick-release wheelchair armrest connection structure, through the design of the locking rod and slots, achieves rapid disassembly and assembly of the armrest frames, greatly improving ease of use. The design of the limiting ring and fixing holes ensures stable sliding and fixation of the armrest frames within the insertion holes, improving the stability of the armrests. The design of the toggle block and return spring makes the operation of the locking rod simpler, allowing users to easily disassemble and assemble the armrest frames.

Description

Technical Field

[0001] This utility model relates to the technical field of wheelchair armrest connection structure, specifically a quick-disassembly wheelchair armrest connection structure. Background Technology

[0002] Wheelchairs are an important tool for rehabilitation. They are not only a means of transportation for people with limb disabilities and limited mobility, but more importantly, they enable them to exercise and participate in social activities. For proper arm support and comfort, it is important to provide properly positioned armrests attached to the wheelchair, which provide good stability.

[0003] For example, CN216222055U discloses a multifunctional wheelchair, which includes a wheelchair body, movable armrests, and elastic pads. The seat and backrest of the wheelchair body are provided with several ventilation holes. The front end of the movable armrests is provided with a downward support rod, and the middle end of the movable armrests is provided with a downward suspension rod. The rear side wall of the movable armrests and the side wall of the support rods are provided with horizontally penetrating bolts. The front sides of the seat and the sides of the backrest are provided with vertical double-hole screw holes. There are two movable armrests, which are detachably connected to the sides of the wheelchair body through the cooperation of bolts and double-hole screw holes. The elastic pads are horizontally connected to the support rods and suspension rods and are located above the seat. This utility model will not cause related diseases due to insufficient breathability; it has a certain elastic support, and when the patient has difficulty supporting their own weight with the strength of their arms or legs, the elasticity of the pads can help the patient achieve the purpose of exercise.

[0004] Most existing armrests are fixed to electric wheelchairs with bolts, which require tools to disassemble. This is inconvenient in some cases where the armrests need to be removed, thus reducing their practicality. Therefore, a quick-disassembly wheelchair armrest connection structure is proposed. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a quick-disassembly wheelchair armrest connection structure, which has the advantages of quick disassembly and installation of the armrest frame, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A quick-release wheelchair armrest connection structure includes a wheelchair body and two armrest frames, wherein the wheelchair body is provided with a disassembly and assembly assembly.

[0008] The assembly and disassembly assembly includes two insertion holes on the front and rear sides of the upper surface of the wheelchair body. The armrests on the front and rear sides are slidably inserted into the interior of the insertion holes on the front and rear sides. Several slots are provided on the opposite side wall of the inner cavity of each armrest. Rectangular blocks are fixed to the front and rear sides of the upper surface of the wheelchair body by bolts. A sliding hole is provided through the right side of each rectangular block.

[0009] The assembly and disassembly assembly also includes two limiting rings fixed to the front and rear sides of the upper surface of the wheelchair body. The armrests on the front and rear sides are slidably connected inside the limiting rings on the front and rear sides. The limiting rings on the left and right sides have fixing holes through them on opposite sides. The upper surface of the rectangular blocks on the front and rear sides is provided with connectors.

[0010] Furthermore, the connector includes fixing plates fixed to the upper surfaces of the rectangular blocks on the front and rear sides. Each fixing plate has a return spring fixed on both the left and right sides. Each return spring has a toggle block fixed on one side. Each sliding hole has two locking rods slidably connected inside. The opposite sides of the locking rods on the left and right sides are slidably inserted into the holes on the left and right sides. The locking rods on the left and right sides are slidably connected into the fixing holes on the left and right sides. The upper surfaces of the rectangular blocks on the front and rear sides are provided with sliding grooves communicating with the sliding holes on the left and right sides. Each toggle block is fixedly connected to the upper surface of each locking rod.

[0011] Furthermore, anti-slip rubber sleeves are fixed to the outer sides of the handrails on both the front and rear sides.

[0012] Furthermore, several of the aforementioned slots are evenly distributed on the left and right side walls of the inner cavity of the handrail frame.

[0013] Furthermore, the inner diameter of the socket is adapted to the outer diameter of the handrail frame.

[0014] Furthermore, the lever moves linearly left and right inside the sliding hole.

[0015] Furthermore, the handrail frame is shaped like a solid U-shaped rod.

[0016] Furthermore, an anti-slip layer, which is a rubber layer, is fixed to the outer side of the actuating block.

[0017] Compared with the prior art, this utility model provides a quick-release wheelchair armrest connection structure, which has the following advantages:

[0018] This quick-release wheelchair armrest connection structure, through the design of locking levers and slots, enables rapid assembly and disassembly of the armrest frame, greatly improving ease of use. The design of limiting rings and fixing holes ensures stable sliding and fixation of the armrest frame within the insertion holes, improving the stability of the armrest. The design of the toggle block and return spring makes the operation of the locking levers simpler, allowing users to easily assemble and disassemble the armrest frame. The anti-slip rubber sleeve on the outside of the armrest frame and the anti-slip layer on the outside of the toggle block increase user comfort and ease of operation. The evenly distributed slots allow the armrest frame to be height-adjusted according to the needs of different users, improving the adaptability of the wheelchair. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the disassembly and assembly components of this utility model;

[0021] Figure 3 This is a schematic diagram of the connection structure between the rectangular block and the sliding hole of this utility model.

[0022] In the diagram: 1 Wheelchair body, 2 Armrest frame, 3 Assembly / disassembly assembly, 301 Insertion hole, 302 Slot, 303 Rectangular block, 304 Sliding hole, 305 Limiting ring, 306 Fixing plate, 307 Return spring, 308 Toggle block, 309 Locking rod. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1 The quick-release wheelchair armrest connection structure in this embodiment includes a wheelchair body 1 and two armrest frames 2, and the wheelchair body 1 is provided with a disassembly and assembly component 3.

[0025] In this embodiment, anti-slip rubber sleeves are fixed to the outer sides of both the front and rear handrail frames 2.

[0026] Specifically, the handrail 2 is a U-shaped rod with a solid interior.

[0027] Please see Figures 2 to 3In this embodiment, the disassembly and assembly component 3 includes two insertion holes 301 on the front and rear sides of the upper surface of the wheelchair body 1. The front and rear armrest frames 2 are slidably inserted into the interior of the front and rear insertion holes 301. Each armrest frame 2 has several slots 302 on the opposite side of its inner cavity. Rectangular blocks 303 are fixed to the front and rear sides of the upper surface of the wheelchair body 1 by bolts. Each rectangular block 303 has a sliding hole 304 through it on its right side.

[0028] Specifically, the assembly and disassembly component 3 also includes two limiting rings 305 fixed to the front and rear sides of the upper surface of the wheelchair body 1. The front and rear armrests 2 are slidably connected inside the front and rear limiting rings 305. The left and right limiting rings 305 are provided with fixing holes on opposite sides. The upper surface of the front and rear rectangular blocks 303 is provided with connectors. The horizontal height of the armrests 2 can be adjusted by setting several slots 302.

[0029] Specifically, the connector includes a fixing plate 306 fixed to the upper surface of the rectangular blocks 303 on both the front and rear sides. Each fixing plate 306 has a return spring 307 fixed on both the left and right sides. Each return spring 307 has a toggle block 308 fixed on one side. Each sliding hole 304 has two locking rods 309 slidably connected inside. The opposite sides of the locking rods 309 on both the left and right sides are slidably inserted into the holes 301 on both the left and right sides. The locking rods 309 on both the left and right sides are slidably connected into the fixing holes on both the left and right sides. The upper surfaces of the rectangular blocks 303 on both the front and rear sides are provided with sliding grooves that communicate with the sliding holes 304. Each toggle block 308 is fixedly connected to the upper surface of each locking rod 309. The toggle block 308 is slidably connected inside the sliding groove.

[0030] Specifically, several slots 302 are evenly distributed on the left and right side walls of the inner cavity of the handrail frame 2. The inner diameter of the insertion hole 301 is adapted to the outer diameter of the handrail frame 2. The locking rod 309 moves linearly left and right inside the sliding hole 304. An anti-slip layer is fixed on the outside of the toggle block 308. The anti-slip layer is a rubber layer. The anti-slip rubber sleeve on the outside of the handrail frame 2 and the anti-slip layer on the outside of the toggle block 308 increase the user's comfort and ease of operation.

[0031] It should be noted that when disassembling the front and rear handrail frames 2, the two toggle blocks 308 on the front side can be pushed in opposite directions. Then, the return springs 307 on the left and right sides are compressed, and the locking rods 309 on the left and right sides are moved out of the slots 302 on the left and right sides. Then, the front handrail frame 2 is pulled upward inside the insertion hole 301 and pulled out. The principle of disassembling the rear handrail frame 2 is the same as that of the front side, which can be quickly disassembled.

[0032] The working principle of the above embodiments is as follows:

[0033] When using the handrails 2, the two toggle blocks 308 on the front side can be pushed in opposite directions. Then, the return springs 307 on the left and right sides are compressed, and the locking rods 309 on the left and right sides are moved out of the slots 302 on the left and right sides. Then, the handrail 2 on the front side is pulled upward in the insertion hole 301 and pulled out. The principle of disassembling the handrail 2 on the rear side is the same as that on the front side. It can be quickly disassembled and quickly installed. At the same time, the horizontal height of the handrail 2 can be adjusted by setting several slots 302.

[0034] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to 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 application.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A quick-release wheelchair armrest connection structure, comprising a wheelchair body (1) and two armrest frames (2), characterized in that: The wheelchair body (1) is equipped with a disassembly and assembly component (3); The assembly / disassembly component (3) includes two insertion holes (301) on the front and rear sides of the upper surface of the wheelchair body (1). The armrests (2) on the front and rear sides are slidably inserted into the insertion holes (301) on the front and rear sides. Each armrest (2) has several slots (302) on the opposite side of its inner cavity. The front and rear sides of the upper surface of the wheelchair body (1) are fixed with rectangular blocks (303) by bolts. Each rectangular block (303) has a sliding hole (304) through it on its right side. The assembly / disassembly component (3) also includes two limiting rings (305) fixed on the front and rear sides of the upper surface of the wheelchair body (1). The armrests (2) on the front and rear sides are slidably connected inside the limiting rings (305) on the front and rear sides. The limiting rings (305) on the left and right sides are provided with fixing holes on opposite sides. The upper surface of the rectangular blocks (303) on the front and rear sides is provided with connectors.

2. The quick-release wheelchair armrest connection structure according to claim 1, characterized in that: The connector includes a fixing plate (306) fixed on the upper surface of the rectangular blocks (303) on the front and rear sides. Each fixing plate (306) has a return spring (307) fixed on both the left and right sides. Each return spring (307) has a toggle block (308) fixed on one side. Each sliding hole (304) has two locking rods (309) slidably connected inside. The opposite sides of the locking rods (309) on the left and right sides are slidably inserted into the holes (301) on the left and right sides. The locking rods (309) on the left and right sides are slidably connected into the fixing holes on the left and right sides. The upper surfaces of the rectangular blocks (303) on the front and rear sides are provided with sliding grooves communicating with the sliding holes (304). Each toggle block (308) is fixedly connected to the upper surface of each locking rod (309).

3. The quick-release wheelchair armrest connection structure according to claim 1, characterized in that: The outer sides of the handrails (2) on both the front and rear sides are fixed with anti-slip rubber sleeves.

4. The quick-release wheelchair armrest connection structure according to claim 1, characterized in that: Several of the slots (302) are evenly distributed on the left and right side walls of the inner cavity of the handrail frame (2).

5. The quick-release wheelchair armrest connection structure according to claim 1, characterized in that: The inner diameter of the socket (301) is adapted to the outer diameter of the handrail (2).

6. The quick-release wheelchair armrest connection structure according to claim 2, characterized in that: The lever (309) moves linearly left and right inside the sliding hole (304).

7. The quick-release wheelchair armrest connection structure according to claim 1, characterized in that: The handrail (2) is a U-shaped rod with a solid interior.

8. The quick-release wheelchair armrest connection structure according to claim 2, characterized in that: The outer side of the actuating block (308) is fixed with an anti-slip layer, which is a rubber layer.

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