Wheelchair armrest convenient to lift and semi-disassemble

Abstract

The utility model discloses a wheelchair armrest convenient to lift and semi-disassemble, which comprises an armrest body and a support frame, one end of the armrest body and one end of the support frame are respectively hinged with a backrest support, the wheelchair armrest further comprises a connecting lock catch, the connecting lock catch comprises a lock catch seat, the lower end of the lock catch seat is hinged with the upper end of the support frame, the lock catch seat is in sliding connection with the armrest body, and the armrest body is connected with the support frame. An inserting block used for limiting the armrest body slides in the lock catch base, and a button used for driving the inserting block to stretch out and draw back slides on the front side of the lock catch base. According to the utility model, the button is arranged on the front side of the lock catch seat, and the position of the button can be directly seen even if a user sits on a wheelchair, so that the armrest body can be opened by quickly pressing the button, and the wheelchair is more convenient to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of wheelchair armrests, and particularly relates to a wheelchair armrest that is convenient to lift and semi-detachable. Background Art

[0002] A wheelchair is a chair equipped with wheels that can help replace walking. It is an important mobile tool for the wounded, sick, and disabled for home rehabilitation, turnover transportation, medical treatment, and outdoor activities. The wheelchair not only meets the transportation needs of the physically disabled and the mobility-impaired, but more importantly, it facilitates the movement and care of the sick by their families, enabling the sick to exercise their bodies and participate in social activities with the help of the wheelchair.

[0003] The armrest is one of the important component structures of the wheelchair. There are some inconvenient problems in the actual use of the existing wheelchair armrests. For example:

[0004] 1. In order to facilitate getting on from the side, the armrest is generally set to be a structure that can be opened upward. However, currently, the button used to unlock the armrest is set on the outside of the armrest. When the user is sitting on the wheelchair, the position of the button cannot be seen. When the armrest needs to be opened upward, the user needs to grope to find the button, which has a certain degree of inconvenience.

[0005] 2. The armrest body, the connecting lock, and the support frame cannot be disassembled. After the wheelchair is folded, the height of the armrest body will exceed the overall height of the wheelchair, resulting in a large occupied space. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a wheelchair armrest that is convenient to lift and semi-detachable to solve the problems raised in the above background art. A wheelchair armrest that is convenient to lift and semi-detachable provided by the utility model has the characteristic of being convenient to open the armrest body upward.

[0007] To achieve the above purpose, the utility model provides the following technical solution: A wheelchair armrest that is convenient to lift and semi-detachable includes an armrest body and a support frame. One end of the armrest body and the support frame are respectively hinged to the backrest support. It also includes a connecting lock, and the connecting lock includes a lock seat. The lower end of the lock seat is hinged to the upper end of the support frame. The lock seat is slidably connected to the armrest body. An insertion block for limiting the armrest body is slidably arranged inside the lock seat. A button for driving the insertion block to expand and contract is slidably arranged on the front side of the lock seat.

[0008] In order to realize the connection between the button and the insertion block, so that the horizontal movement of the button can drive the up and down movement of the insertion block. Further, a guiding inclined groove is arranged on the button, a U-shaped groove corresponding to the guiding inclined groove is arranged on the insertion block, and a connecting pin is inserted into the guiding inclined groove and the U-shaped groove.

[0009] In order to enable the button to automatically reset outwards, thereby driving the insertion block to extend upwards, further, a spring is also provided between the button and the latch seat.

[0010] In the present utility model, further, the armrest body includes an armrest frame, one end of the armrest frame is hinged to the backrest bracket, and an armrest pad is connected above the armrest frame.

[0011] In order to cooperate with the insertion block to achieve the limit between the latch seat and the armrest body, further, a guide rail is connected below the armrest frame, and a slot corresponding to the insertion block is provided at the bottom of the guide rail.

[0012] In order to guide the movement of the latch seat, further, symmetric convex blocks are respectively provided on both sides of the guide rail, and a T-shaped groove corresponding to the convex blocks is provided on the latch seat.

[0013] In order to further guide the movement of the latch seat, further, an arc groove corresponding to the armrest frame is also provided on the latch seat above the T-shaped groove.

[0014] In order to guide during the assembly of the latch seat and the guide rail and make the assembly of the latch seat and the guide rail more convenient, further, an inclined surface is provided on the bottom surface of the front end of the guide rail.

[0015] In order to make the button and the latch seat visually appear as an integral structure and be more beautiful, further, the latch seat is provided with a clearance groove corresponding to the button.

[0016] In the present utility model, further, a method for realizing a wheelchair armrest that is convenient to lift and semi-detachable includes the following steps:

[0017] (1) One ends of the armrest body and the support frame are respectively hinged to the backrest bracket;

[0018] (2) A connecting latch is hinged to the upper end of the support frame, a guide rail is connected to the bottom of the armrest body, and the latch seat of the connecting latch is slidably connected to the guide rail;

[0019] (3) A slot is provided at the bottom of the guide rail, an insertion block slides in the latch seat, and a button for driving the insertion block to expand and contract slides on the front side of the latch seat;

[0020] (4) A spring for driving the button to reset outwards is provided between the button and the latch seat.

[0021] Compared with the prior art, the beneficial effects of the present utility model are:

[0022] 1. In the present utility model, the button is arranged on the front side of the latch seat, so that even when sitting on the wheelchair, the position of the button can be directly seen, thereby facilitating the quick pressing of the button to open the armrest body and making the use of the wheelchair more convenient;

[0023] 2. After unlocking the connection lock of the present utility model, turning the armrest body downward can also separate the armrest body from the connection lock. Thus, when folding the wheelchair, the armrest body can be separated from the support frame, facilitating the rotation of the armrest body to a suitable position, reducing the overall occupied space of the wheelchair, making it convenient to fold and carry the wheelchair, and reducing the size of the packaging box during packaging;

[0024] 3. The bottom surface of the front end of the guide rail of the present utility model is provided with an inclined surface for guiding during the assembly of the lock seat and the guide rail, making the assembly of the lock seat and the guide rail more convenient;

[0025] 4. The lock seat of the present utility model is provided with an avoidance groove corresponding to the button. In the initial state, the button is located inside the avoidance groove, making the button and the lock seat visually appear as an integral structure, which is more beautiful compared to the structure where the button is set on the side and protrudes; BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic installation structure diagram of the present utility model;

[0027] Figure 2 is a schematic structure diagram of the armrest body of the present utility model;

[0028] Figure 3 and 4 are both schematic structure diagrams of the guide rail of the present utility model;

[0029] Figure 5 is an exploded schematic structure diagram of the connection lock of the present utility model;

[0030] Figure 6 is a schematic structure diagram of the lock seat of the present utility model;

[0031] Figure 7 is a schematic structure diagram of the button of the present utility model;

[0032] Figure 8 is a schematic structure diagram of the insertion block of the present utility model;

[0033] Figure 9 is a schematic internal structure diagram of the lock seat of the present utility model;

[0034] Figure 10 is a schematic cross-sectional structure diagram of the connection lock of the present utility model;

[0035] Figure 11 is a schematic structure diagram when the armrest body of the present utility model is opened upward;

[0036] Figure 12 is a schematic structure diagram after the present utility model is folded;

[0037] In the figure: 1. Backrest bracket; 2. Armrest body; 21. Armrest frame; 22. Armrest cushion; 3. Connecting lock; 4. Support frame; 5. Guide rail; 51. Protrusion; 52. Slot; 6. Lock seat; 61. Arc groove; 62. T-shaped groove; 63. Relief groove; 64. Rib plate; 65. Button slot; 66. Guide groove; 7. Insert block; 71. U-shaped groove; 72. Threaded hole; 8. Connecting pin; 9. Button; 91. Guide inclined groove; 92. Horizontal section; 10. Spring; 11. Limit screw. Detailed implementation mode

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0039] Embodiment 1

[0040] Please refer to Figures 1-12 , the present invention provides the following technical solutions: A wheelchair armrest that is convenient to lift and semi-detach, including an armrest body 2 and a support frame 4. Among them, the armrest body 2 includes an armrest frame 21, and a guide rail 5 is connected below the armrest frame 21. The guide rail 5 guides the movement of the lock seat 6. One end of the armrest frame 21 is hinged to the backrest bracket 1, and an armrest cushion 22 is connected above the armrest frame 21. One end of the support frame 4 is hinged to the backrest bracket 1. It also includes a connecting lock 3. The connecting lock 3 includes a lock seat 6. The lower end of the lock seat 6 is hinged to the upper end of the support frame 4. The lock seat 6 is slidably connected to the guide rail 5. An insert block 7 slides inside the lock seat 6. A guide groove 66 for guiding the insert block 7 is provided inside the lock seat 6. A slot 52 corresponding to the insert block 7 is provided at the bottom of the guide rail 5. The insert block 7 is inserted into the slot 52 to realize the limit of the lock seat 6 and the guide rail 5. A button 9 for driving the insert block 7 to expand and contract slides on the front side of the lock seat 6. A button slot 65 for inserting the button 9 is provided on the lock seat 6.

[0041] By adopting the above technical solutions, the present invention sets the button 9 on the front side of the lock seat 6, so that even when sitting on the wheelchair, the position of the button 9 can be directly seen, which is convenient for quickly pressing the button 9 to open the armrest body 2 and makes the use of the wheelchair more convenient; after unlocking the connecting lock 3 of the present invention, turning the armrest body 2 downward can also separate the armrest body 2 from the connecting lock 3. Therefore, when folding the wheelchair, the armrest body 2 can be separated from the support frame 4, so as to conveniently turn the armrest body 2 to a suitable position, reduce the overall occupied space of the wheelchair, facilitate the folding and carrying of the wheelchair, and can reduce the size of the packaging box during packaging.

[0042] Specifically, a guiding inclined groove 91 is provided on the button 9, a U-shaped groove 71 corresponding to the guiding inclined groove 91 is provided on the inserting block 7, and the connecting pin 8 is inserted into the guiding inclined groove 91 and the U-shaped groove 71.

[0043] By adopting the above technical solution, the connection between the button 9 and the inserting block 7 is realized. Through the cooperation of the connecting pin 8 and the guiding inclined groove 91, the horizontal movement of the button 9 can drive the up and down movement of the inserting block 7.

[0044] Specifically, a spring 10 is further provided between the button 9 and the latch seat 6.

[0045] By adopting the above technical solution, after the button 9 is released, the button 9 can automatically reset outwards, thereby driving the inserting block 7 to extend upwards.

[0046] Embodiment 2

[0047] The difference between this embodiment and Embodiment 1 is that: Specifically, symmetric convex blocks 51 are respectively provided on both sides of the guiding rail 5, and a T-shaped groove 62 corresponding to the convex block 51 is provided on the latch seat 6.

[0048] By adopting the above technical solution, the movement of the latch seat 6 is guided and limited in the vertical direction through the cooperation of the convex block 51 and the T-shaped groove 62.

[0049] Specifically, the armrest frame 21 is of a circular tube structure, and an arc-shaped groove 61 corresponding to the armrest frame 21 is further provided on the latch seat 6 above the T-shaped groove 62.

[0050] By adopting the above technical solution, the movement of the latch seat 6 is further guided through the cooperation of the arc-shaped groove 61 and the armrest frame 21.

[0051] Embodiment 3

[0052] The difference between this embodiment and Embodiment 1 is that: Specifically, an inclined surface is provided on the bottom surface of the front end of the guiding rail 5.

[0053] By adopting the above technical solution, guiding is performed during the assembly of the latch seat 6 and the guiding rail 5, making the assembly of the latch seat 6 and the guiding rail 5 more convenient.

[0054] Embodiment 4

[0055] The difference between this embodiment and Embodiment 1 is that: Specifically, the latch seat 6 is provided with a clearance groove 63 corresponding to the button 9.

[0056] By adopting the above technical solution, in the initial state, the button 9 is located inside the clearance groove 63, making the button 9 and the latch seat 6 visually appear as an integral structure, which is more beautiful compared to the structure where the button 9 is arranged on the side and protrudes.

[0057] Example 5

[0058] The difference between this embodiment and Embodiment 1 lies in that: specifically, a horizontal section 92 is provided at the lower end of the guiding inclined groove 91.

[0059] By adopting the above technical solution, it is convenient for the assembly between the insertion block 7, the connecting pin 8, the button 9 and the latch seat 6.

[0060] Specifically, a threaded hole 72 corresponding to the U-shaped groove 71 is provided on the insertion block 7, and a limit screw 11 is engaged inside the threaded hole 72.

[0061] By adopting the above technical solution, the connecting pin 8 is limited by the limit screw 11 to ensure the stability of the assembly.

[0062] Specifically, four rib plates 64 are respectively provided on both sides of the guiding groove 66 inside the button slot 65.

[0063] By adopting the above technical solution, it is used to guide the movement of the button 9 and the insertion block 7, and at the same time, the acting force can be dispersed to improve the strength.

[0064] The assembly steps of the insertion block 7, the connecting pin 8, the button 9 and the latch seat 6 in the present utility model are as follows:

[0065] (1), Insert the connecting pin 8 into the horizontal section 92 of the guiding inclined groove 91;

[0066] (2), Install the spring 10 into the button slot 65, then insert the button 9 into the button slot 65, and adjust the position of the connecting pin 8 to expose the guiding groove 66;

[0067] (3), Insert the insertion block 7 into the guiding groove 66, adjust the position of the insertion block 7 to align the position of the U-shaped groove 71 with the connecting pin 8;

[0068] (4), Use tools such as a screwdriver to push the connecting pin 8 to the bottom end of the U-shaped groove 71, and then screw the limit screw 11 into the threaded hole 72.

[0069] Example 6

[0070] Furthermore, a method for realizing a wheelchair armrest that is convenient to lift and semi-dismantle according to the present utility model includes the following steps:

[0071] (1), One end of the armrest body 2 and the support frame 4 are respectively hinged to the backrest bracket 1;

[0072] (2), A connecting latch 3 is hinged to the upper end of the support frame 4, a guiding rail 5 is connected to the bottom of the armrest body 2, and the latch seat 6 of the connecting latch 3 is slidably connected to the guiding rail 5;

[0073] (3) A slot 52 is provided at the bottom of the guide rail 5, a plug 7 is slidably arranged in the lock seat 6, and a button 9 for driving the plug 7 to expand and contract is slidably arranged on the front side of the lock seat 6;

[0074] (4) A spring 10 for driving the button 9 to reset outward is arranged between the button 9 and the lock seat 6.

[0075] In summary, in the present utility model, the button 9 is arranged on the front side of the lock seat 6, so that even when sitting on a wheelchair, the position of the button 9 can be directly seen, facilitating the quick pressing of the button 9 to open the armrest body 2, making the use of the wheelchair more convenient; after unlocking the connecting lock 3 in the present utility model, the armrest body 2 can be rotated downward to separate the armrest body 2 from the connecting lock 3. Thus, when folding the wheelchair, the armrest body 2 can be separated from the support frame 4, facilitating the rotation of the armrest body 2 to a suitable position, reducing the overall occupied space of the wheelchair, facilitating the folding and carrying of the wheelchair, and reducing the size of the packaging box during packaging; a slope is provided on the bottom surface at the front end of the guide rail 5 in the present utility model to guide during the assembly of the lock seat 6 and the guide rail 5, making the assembly of the lock seat 6 and the guide rail 5 more convenient; an avoidance groove 63 corresponding to the button 9 is provided in the lock seat 6 of the present utility model. In the initial state, the button 9 is located inside the avoidance groove 63, making the button 9 and the lock seat 6 visually appear as an integral structure, which is more beautiful compared to the structure where the button 9 is arranged on the side and protrudes.

[0076] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A wheelchair armrest that is convenient to lift and semi-dismantle, characterized in that: It includes an armrest body and a support frame. One end of the armrest body and the support frame are respectively hinged to the backrest bracket. It also includes a connecting lock. The connecting lock includes a lock seat. The lower end of the lock seat is hinged to the upper end of the support frame. The lock seat is slidably connected to the armrest body. An insertion block for limiting the armrest body is slid inside the lock seat. A button for driving the insertion block to expand and contract is slid on the front side of the lock seat.

2. The wheelchair armrest that is convenient to lift and semi-detach according to claim 1, wherein: The button is provided with a guiding inclined groove, and the insertion block is provided with a U-shaped groove corresponding to the guiding inclined groove. A connecting pin is inserted inside the guiding inclined groove and the U-shaped groove.

3. A wheelchair armrest that is convenient to lift and semi-detachable according to claim 1, characterized in that: A spring is also provided between the button and the lock seat.

4. A wheelchair armrest that is convenient to lift and semi-detach, as described in claim 1, wherein: The armrest body includes an armrest frame. One end of the armrest frame is hinged to the backrest bracket, and an armrest pad is connected above the armrest frame.

5. A wheelchair armrest that is convenient to lift and semi-detach, as described in claim 4, characterized in that: A guiding rail is connected below the armrest frame, and a slot corresponding to the insertion block is provided at the bottom of the guiding rail.

6. The wheelchair armrest according to claim 5, which is convenient to lift and semi-detach, is characterized in that: Symmetrically arranged convex blocks are respectively provided on both sides of the guiding rail, and a T-shaped groove corresponding to the convex blocks is provided on the lock seat.

7. A wheelchair armrest that is convenient to lift and semi-detachable according to claim 6, characterized in that: An arc-shaped groove corresponding to the armrest frame is also provided on the lock seat above the T-shaped groove.

8. A wheelchair armrest that is convenient to lift and semi-detachable according to claim 5, characterized in that: An inclined surface is provided on the bottom surface at the front end of the guiding rail.

9. A wheelchair armrest that is convenient to lift and semi-detach according to claim 1, characterized in that: The lock seat is provided with a clearance groove corresponding to the button.

Images