Wheelchair armrest with storage function

Abstract

The utility model discloses a wheelchair handrail with the function of storing things, including handrail main part, storage box and L type apron, the L type apron sliding connection in handrail main part top, be provided with air bag in the storage box, be provided with piston disc in the handrail main part, wherein, the storage box bottom is provided with recess area, the air bag is in recess area, the movable floor is installed to the air bag top, the movable floor sliding connection is in the storage box inner wall, the handrail main part is provided with the air cavity, the piston disc sliding connection is in the air cavity inner wall, one side of air bag is provided with the trachea, and one end of trachea is connected with the air cavity internal space, and through movable floor with the L type apron open and close when lifting, after taking things, the air bag inflation pushes the small article of bottom layer to the opening, need not hand to go in deeply, reduce the difficulty when taking out the article, and the L type apron closes and prevents the article from sliding out.

Description

Technical Field

[0001] This utility model relates to the field of wheelchair armrest technology, specifically a wheelchair armrest with storage function. Background Technology

[0002] As an important mobility tool for people with mobility impairments, wheelchairs rely heavily on their armrests. The core function of armrests is to provide arm support, distribute upper body weight through a stable platform, help maintain balance, reduce fatigue from prolonged sitting, and provide support and leverage when getting in and out of the wheelchair or adjusting posture, ensuring safety. With increasing demands for diverse functions, traditional armrests are evolving towards multi-functional integration. Armrests with integrated storage functions have become a key area of ​​optimization, aiming to solve the problem of where to store small personal items (such as medication, keys, and mobile phones). By incorporating storage space inside or on the sides of the armrests, convenient storage is achieved, reducing reliance on assistance from others and enhancing independent living abilities. However, existing handrails with storage functions have significant drawbacks. To avoid occupying external space or affecting support stability, the storage space is mostly designed as a deep and narrow cavity inside the handrail. Although it can basically store items, the deep cavity and narrow opening mean that users have to reach into the narrow space to retrieve items. This is especially inefficient for users with weaker mobility, and may also cause secondary injuries due to excessive bending of the hand or items slipping. This seriously affects practicality and fails to meet the needs of convenience and safety. Optimizing the storage space structure has become an urgent technical problem to be solved.

[0003] Therefore, this utility model provides a wheelchair armrest with storage function. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a wheelchair armrest with storage function to solve the above problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wheelchair armrest with storage function, comprising an armrest body, a storage box, and an L-shaped cover. The L-shaped cover is slidably connected to the top of the armrest body. An airbag is provided inside the storage box, and a piston disc is provided inside the armrest body. A recessed area is provided at the bottom of the storage box, and the airbag is located within the recessed area. A movable base plate is installed on the top of the airbag, and the movable base plate is slidably connected to the inner wall of the storage box. An air chamber is provided inside the armrest body, and the piston disc is slidably connected to the inner wall of the air chamber. An air tube is provided on one side of the airbag, and one end of the air tube is connected to the internal space of the air chamber.

[0006] Preferably, a mounting side plate is provided on one side of the handrail body, and two threaded holes are provided at the bottom of the mounting side plate.

[0007] Preferably, the top of the handrail body has two sliding track grooves, and the bottom of the L-shaped cover plate has two sliders, which are slidably connected to the inner wall of the corresponding sliding track groove.

[0008] Preferably, guide rods are installed on the inner walls of both sliding track grooves, and through holes are opened on both sliders, with the guide rods slidably connected to the inner walls of the through holes.

[0009] Preferably, a sleeve is installed on one side of the piston disc, and a push-pull rod is slidably connected to the inner wall of the sleeve. The push-pull rod passes through one end of the handrail body, and one end of the push-pull rod is installed on one side of the L-shaped cover plate.

[0010] Preferably, the inner wall of the storage box has two inner sliding grooves, and guide blocks are installed at both ends of the movable base plate. The guide blocks are slidably connected to the inner wall of the corresponding inner sliding groove.

[0011] Beneficial effects

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] (1) This utility model uses a movable base plate that rises and falls with the L-shaped cover when it is opened and closed. After taking out the item, the airbag inflates and pushes the small item at the bottom to the opening, eliminating the need for hands to reach in and reducing the difficulty of taking out the item. When the L-shaped cover is closed, it prevents the item from slipping out.

[0014] (2) The utility model retains the traditional armrest support properties of the armrest body and L-shaped cover plate structure. The L-shaped cover plate slides to connect the top, which does not affect the comfort of arm placement and continuously distributes the weight of the upper body. The pneumatic linkage structure is hidden inside, does not take up extra space, and ensures the compactness and stability of the wheelchair. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 2 ;

[0017] Figure 3 This is a three-dimensional cross-sectional structural diagram of the present invention;

[0018] Figure 4 This is the utility model Figure 3 A magnified schematic diagram of the structure at point A in the middle.

[0019] In the diagram: 1. Handrail body; 11. Storage box; 111. Inner sliding groove; 12. Air chamber; 13. Mounting side plate; 131. Threaded hole; 14. Sliding track groove; 15. Guide rod; 2. L-shaped cover plate; 21. Slider; 22. Through hole; 3. Airbag; 31. Movable base plate; 311. Guide block; 32. Air pipe; 4. Piston disc; 41. Sleeve; 42. Push-pull rod. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-4 A wheelchair armrest with storage function includes an armrest body 1, a storage box 11 and an L-shaped cover 2. The L-shaped cover 2 is slidably connected to the top of the armrest body 1. An airbag 3 is provided in the storage box 11 and a piston disc 4 is provided in the armrest body 1.

[0022] The storage box 11 has a recessed area at the bottom, the airbag 3 is located in the recessed area, and a movable base plate 31 is installed on the top of the airbag 3. The movable base plate 31 is slidably connected to the inner wall of the storage box 11.

[0023] It should be noted that the movable base 31 described in this embodiment supports the lifting and lowering of the items.

[0024] An air chamber 12 is provided inside the main body of the handrail. The piston disc 4 is slidably connected to the inner wall of the air chamber 12. An air tube 32 is provided on one side of the airbag 3, and one end of the air tube 32 is connected to the internal space of the air chamber 12.

[0025] It should be noted that the air tube 32 described in this embodiment is closely attached to one side and bottom of the armrest body 1, the piston disc 4 adjusts the air pressure inside the air chamber 12, and the airbag 3 lifts the movable base plate 31 when it inflates.

[0026] Specifically, items are placed on the movable base plate 31 of the storage box 11. Gas is discharged into the air chamber 12 of the armrest body 1 through the air pipe 32, pushing the piston disc 4 to slide. Conversely, the piston disc 4 slides back, and the gas backflow causes the airbag 3 to inflate and lift the movable base plate 31. The L-shaped cover 2 is slidably connected to the top of the armrest body 1, which can close or open the storage space. For the difficulty of retrieving items in deep and narrow spaces, the movable base plate 31 rises and falls with the opening and closing of the L-shaped cover 2. After retrieving the item, the airbag 3 inflates and pushes the small items at the bottom to the opening, without the need for hands to reach deep. For the safety of retrieval, the movable base plate 31 slides... The storage box 11 is connected to the inner wall, and the lifting mechanism is stable to prevent items from tilting and falling. When the L-shaped cover 2 is closed, it prevents items from sliding out without compromising the armrest support function. At the same time, the armrest body 1 and the L-shaped cover 2 retain the traditional armrest support attributes. The L-shaped cover 2 slides to the top, which does not affect the comfort of arm placement and continuously distributes the weight of the upper body. The pneumatic linkage structure is hidden inside, without taking up extra space, ensuring the compactness and stability of the wheelchair. It optimizes the storage function while adhering to the core value of armrest support, effectively solving the problems of inconvenience in deep and narrow spaces, safety hazards, and the need to balance functions.

[0027] In one embodiment of this utility model, such as Figures 1-4 As shown, a mounting side plate 13 is provided on one side of the handrail body 1, and two threaded holes 131 are provided at the bottom of the mounting side plate 13.

[0028] It should be noted that the armrest body 1 described in this embodiment is connected and fixed to the wheelchair through threaded holes 131 and bolts.

[0029] Specifically, when assembling the armrest with the wheelchair, bolts are passed through threaded holes 131 and fastened to the corresponding threaded structure of the wheelchair connection part. The threaded connection between the bolts and threaded holes 131 forms a rigid fixation between the armrest body 1 and the wheelchair, ensuring that the armrest body 1 will not loosen, shift, or shake during use. This achieves stable assembly between the armrest and the wheelchair, providing a reliable structural foundation for the armrest's support and storage functions.

[0030] In one embodiment of this utility model, such as Figures 1-4 As shown, the top of the handrail body 1 has two sliding track grooves 14, and the bottom of the L-shaped cover plate 2 has two sliders 21, which are slidably connected to the inner wall of the corresponding sliding track groove 14.

[0031] It should be noted that the sliding track groove 14 described in this embodiment guides the slider 21.

[0032] Specifically, the two sliding track grooves 14 at the top of the armrest body 1 provide precise guidance for the two sliders 21 at the bottom of the L-shaped cover 2, enabling the L-shaped cover 2 to slide stably along the sliding track grooves 14, achieving smooth opening and closing of the storage space. During the sliding process, the cooperation between the track grooves and the sliders ensures that the cover will not deviate from the preset path and maintains the stability of the movement.

[0033] In one embodiment of this utility model, such as Figures 1-4 As shown, guide rods 15 are installed on the inner walls of both sliding track grooves 14, and through holes 22 are opened on both sliders 21. The guide rods 15 are slidably connected to the inner walls of the through holes 22.

[0034] It should be noted that the guide rod 15 described in this embodiment limits the slider 21.

[0035] Specifically, the guide rod 15 is inserted into the through hole 22 and slides against the inner wall of the through hole 22. The guide rod 15 limits the movement of the slider 21 in the sliding track groove 14, allowing it to slide linearly along the axial direction of the guide rod 15. This prevents the slider 21 from shifting laterally, shaking, or falling out of the track groove during the sliding process, further improving the stability and accuracy of the opening and closing action of the L-shaped cover plate 2.

[0036] In one embodiment of this utility model, such as Figures 1-4 As shown, a sleeve 41 is installed on one side of the piston disc 4, and a push-pull rod 42 is slidably connected to the inner wall of the sleeve 41. The push-pull rod 42 passes through one end of the handrail body 1, and one end of the push-pull rod 42 is installed on one side of the L-shaped cover plate 2.

[0037] It should be noted that, in this embodiment, the push-pull rod 42 extends outward from the sleeve 41 and pulls the sleeve 41.

[0038] Specifically, when the L-shaped cover 2 slides forward to open the storage box 11, it will drive the push-pull rod 42 to move synchronously. The push-pull rod 42 slides inside the sleeve 41 and exerts a traction effect on the sleeve 41. This linkage process can intervene in the rhythm of air pressure change of the airbag 3, delaying the expansion action of the airbag 3, and avoiding the airbag 3 from expanding too quickly and pushing up the movable bottom plate 31 when the cover is opened. This makes the operation of taking and putting away items more relaxed, realizing the coordinated control of the sliding of the cover and the air pressure regulation of the airbag 3, and optimizing the timing and experience of taking and putting away storage items.

[0039] In one embodiment of this utility model, such as Figures 1-4 As shown, the inner wall of the storage box 11 has two inner grooves 111, and guide blocks 311 are installed at both ends of the movable base plate 31. The guide blocks 311 are slidably connected to the inner wall of the corresponding inner groove 111.

[0040] It should be noted that the inner slide 111 described in this embodiment guides the movable base plate 31 to rise and fall via the guide block 311.

[0041] Specifically, when the movable base plate 31 moves up and down under the action of the airbag 3, the guide block 311 slides synchronously along the inner wall of the inner slide groove 111. The inner slide groove 111 limits the movable base plate 31 to only move up and down in the vertical direction by limiting the guide block 311. This prevents the movable base plate 31 from shifting laterally, tilting or getting stuck when carrying items or being pushed by the airbag, ensuring that the movable base plate 31 always maintains a horizontal state and moves up and down accurately, thus improving the stability and smoothness of the item picking and placing process.

[0042] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0043] Working principle: When an item is placed on the movable base plate 31 of the storage box 11, its weight causes the movable base plate 31 to press down on the airbag 3. Gas is discharged into the air chamber 12 of the armrest body 1 through the air pipe 32, pushing the piston plate 4 to slide. After the item is removed, the piston plate 4 slides back, and the gas backflow causes the airbag 3 to expand, lifting the movable base plate 31 to rise, making it easier to remove the item. The L-shaped cover plate 2 slides along the sliding track groove 14 at the top of the armrest body 1 via the bottom slider 21. The guide rod 15 passes through the through hole 22 of the slider 21 to achieve precise guidance and limiting. To ensure stable opening / closing of the cover, when the L-shaped cover 2 slides, it drives the push-pull rod 42 to move within the sleeve 41 of the piston disc 4. The traction sleeve 41 delays the inflation of the airbag 3, preventing the movable base plate 31 from rising too quickly at the moment of opening. The guide blocks 311 at both ends of the movable base plate 31 slide along the inner groove 111 on the inner wall of the storage box 11, ensuring smooth lifting without tilting. The armrest body 1 is fixed to the wheelchair through the threaded hole 131 of the mounting side plate 13, thus achieving a combination of convenient storage and retrieval with support stability.

[0044] 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 process, method, article, or apparatus.

[0045] 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 wheelchair armrest with storage function, comprising an armrest body (1), a storage box (11), and an L-shaped cover (2), wherein the L-shaped cover (2) is slidably connected to the top of the armrest body (1), characterized in that, An airbag (3) is provided inside the storage box (11), and a piston disc (4) is provided inside the armrest body (1). The storage box (11) has a recessed area at the bottom, the airbag (3) is located in the recessed area, and a movable base plate (31) is installed on the top of the airbag (3). The movable base plate (31) is slidably connected to the inner wall of the storage box (11). An air chamber (12) is provided inside the armrest body (1). The piston disc (4) is slidably connected to the inner wall of the air chamber (12). An air tube (32) is provided on one side of the airbag (3). One end of the air tube (32) is connected to the internal space of the air chamber (12).

2. A wheelchair armrest with storage function according to claim 1, characterized in that, The armrest body (1) has a mounting side plate (13) on one side, and the mounting side plate (13) has two threaded holes (131) at the bottom.

3. A wheelchair armrest with storage function according to claim 1, characterized in that, The top of the handrail body (1) has two sliding track grooves (14), and the bottom of the L-shaped cover plate (2) has two sliders (21), which are slidably connected to the inner wall of the corresponding sliding track groove (14).

4. A wheelchair armrest with storage function according to claim 3, characterized in that, Guide rods (15) are installed on the inner walls of both sliding track grooves (14), and through holes (22) are opened on both sliders (21). The guide rods (15) are slidably connected to the inner wall of the through holes (22).

5. A wheelchair armrest with storage function according to claim 1, characterized in that, A sleeve (41) is installed on one side of the piston disc (4), and a push-pull rod (42) is slidably connected to the inner wall of the sleeve (41). The push-pull rod (42) passes through one end of the handrail body (1), and one end of the push-pull rod (42) is installed on one side of the L-shaped cover plate (2).

6. A wheelchair armrest with storage function according to claim 1, characterized in that, The storage box (11) has two inner grooves (111) on its inner wall. The movable base plate (31) has guide blocks (311) installed at both ends. The guide blocks (311) are slidably connected to the inner wall of the corresponding inner groove (111).

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