Shock resistant wheelchair controller

Abstract

The utility model discloses an anti -seismic wheelchair car controller, including wheelchair controller main part, the lower extreme of wheelchair controller main part is installed with fixed establishment, wheelchair controller main part installs on the handrail of external wheelchair through fixed establishment, and fixed establishment includes bottom shell, bandage, first magic paste, fixed plate and shock attenuation rubber pad, and the left and right sides of bottom shell lower wall all are installed with fixed plate, and the external wheelchair handrail can be inserted between two fixed plates, and wheelchair controller main part can be inserted into bottom shell, and the lateral wall of two fixed plates all are installed with bandage, and the bottom shell both sides fixed plate of this device, cooperate bandage and first magic paste and fix on wheelchair handrail, realize the firm fixation of bottom shell and wheelchair handrail, and second magic paste can further reinforce wheelchair controller main part, and the cooperation of convex ring and snap ring prevents wheelchair controller main part from falling off from bottom shell, and through above -mentioned multiple fixed structure can avoid this device displacement or fall off in the running process.

Description

Technical Field

[0001] This utility model relates to the field of electric wheelchair controller technology, specifically a shock-resistant wheelchair controller. Background Technology

[0002] As an important mobility aid for people with mobility impairments, wheelchairs rely heavily on their controllers, which are the core components enabling movement and steering. Existing wheelchair controllers are typically fixed directly to the armrests using simple clips or straps. However, this fixing structure is unstable and prone to displacement or even detachment due to road bumps during wheelchair use. Furthermore, the lack of effective shock-absorbing structures makes the internal electronic components susceptible to damage from vibration and impact, thus shortening their lifespan. Utility Model Content

[0003] The purpose of this invention is to provide a shock-resistant wheelchair controller to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a shock-resistant wheelchair controller, comprising a wheelchair controller body, wherein a fixing mechanism is installed at the lower end of the wheelchair controller body, and the wheelchair controller body is installed on the armrest of the external wheelchair through the fixing mechanism;

[0005] The fixing mechanism includes a base shell, straps, first Velcro straps, fixing plates, and shock-absorbing rubber pads. Fixing plates are installed on both the left and right sides of the lower wall of the base shell. The cross-section of the fixing plates is L-shaped. The external wheelchair armrests can be inserted between the two fixing plates. The main body of the wheelchair controller can be inserted into the base shell. Straps are installed on the side walls of the two fixing plates. First Velcro straps are installed at the other end of the two straps. The two first Velcro straps can be attached to each other. A shock-absorbing rubber pad is installed on the inner side wall of the base shell. The shock-absorbing rubber pad can be attached to the outer side wall of the main body of the wheelchair controller.

[0006] As a preferred embodiment of this utility model, a protruding ring is installed on the inner side wall of the bottom shell, and a retaining ring is installed on the outer side wall of the wheelchair controller body. The retaining ring can be inserted into the bottom shell, and the protruding ring can block the retaining ring.

[0007] As a preferred embodiment of the present invention, the shock-absorbing rubber pad includes a main pad plate, a secondary pad plate, a protruding post, a relief groove, and a balloon. The main pad plate has a protruding post installed on its side wall, and the secondary pad plate has a relief groove on its side wall. The protruding post can be inserted into the relief groove, and a balloon is installed above the protruding post. The balloon can fit against the inner wall of the relief groove.

[0008] As a preferred embodiment of this utility model, the rear sidewall of the bottom shell is provided with a through groove, the through groove is connected to the inner cavity of the bottom shell, a rubber strip is installed on the inner sidewall of the through groove, and a groove is provided on the sidewall of the rubber strip, the groove being able to be inserted into the inner wall of the through groove.

[0009] As a preferred embodiment of this invention, a second Velcro strap is installed on the outer side of the strap end, which can be fastened to the upper wall of the wheelchair controller body.

[0010] As a preferred embodiment of this utility model, an anti-slip pad is fitted to the inner side wall of the fixing plate, and the anti-slip pad is fitted to the external wheelchair armrest.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This device is fixed to the wheelchair armrest by fixing plates on both sides of the bottom shell, along with straps and the first Velcro, to achieve a firm fixation between the bottom shell and the wheelchair armrest. At the same time, the second Velcro can further reinforce the main body of the wheelchair controller. The cooperation of the convex ring and the snap ring prevents the main body of the wheelchair controller from falling off the bottom shell. Through the above-mentioned multiple fixing structures, the device can be prevented from shifting or falling off during driving.

[0013] In addition, the device is equipped with shock-absorbing rubber pads inside the bottom shell, which significantly reduces the impact of vibration on the internal components of the controller. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this patent;

[0015] Figure 2 This is a cross-sectional schematic diagram of the fixing mechanism of this patent;

[0016] Figure 3 for Figure 2 Schematic diagram of the structure at point A in the middle;

[0017] Figure 4 This is a schematic diagram of the rubber strip structure of this patent.

[0018] In the diagram: 1 Wheelchair controller body, 2 Fixing mechanism, 21 Base shell, 22 Straps, 23 First Velcro strap, 24 Fixing plate, 25 Shock-absorbing rubber pad, 3 Protruding ring, 4 Snap ring, 5 Through groove, 6 Rubber strip, 7 Groove, 8 Second Velcro strap, 9 Anti-slip pad, 251 Main pad plate, 252 Secondary pad plate, 253 Protruding column, 254 Relief groove, 255 Balloon. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4 This utility model provides a technical solution:

[0021] In this technical solution, an anti-vibration wheelchair controller includes a wheelchair controller body 1, a fixing mechanism 2 is installed at the lower end of the wheelchair controller body 1, and the wheelchair controller body 1 is installed on the armrest of the external wheelchair through the fixing mechanism 2.

[0022] The fixing mechanism 2 includes a base shell 21, straps 22, first Velcro straps 23, fixing plates 24 and shock-absorbing rubber pads 25. Fixing plates 24 are installed on both the left and right sides of the lower wall of the base shell 21. The cross-section of the fixing plates 24 is L-shaped. The external wheelchair armrests can be inserted between the two fixing plates 24. The wheelchair controller body 1 can be inserted into the base shell 21. Straps 22 are installed on the side walls of the two fixing plates 24. First Velcro straps 23 are installed on the other end of the two straps 22. The two first Velcro straps 23 can be attached to each other. The shock-absorbing rubber pads 25 are installed on the inner side wall of the base shell 21. The shock-absorbing rubber pads 25 can be attached to the outer side wall of the wheelchair controller body 1.

[0023] In this technical solution, the bottom shell 21 can provide a stable mounting cavity for the wheelchair controller body 1. The L-shaped fixing plate 24 is fixed to the wheelchair armrest through a snap-fit ​​structure. The strap 22, together with the first Velcro 23, achieves a tight binding between the fixing plate and the armrest. The shock-absorbing rubber pad 25 is directly attached to the outer wall of the controller body, which can absorb the vibration energy transmitted to the bottom shell when bumps occur, and reduce the impact of vibration on the internal components of the wheelchair controller body 1.

[0024] The wheelchair controller body 1 described in this article is based on existing technology. When the user operates the input device, such as pushing a joystick, the input device generates a physical signal, which is then converted into an electrical signal. The microprocessor parses the instructions, the drive circuit amplifies the signal, controls the motor speed and direction, the encoder provides feedback on the operating status, and the microprocessor dynamically adjusts the settings to achieve precise and stable wheelchair movement.

[0025] In some technical solutions, a protruding ring 3 is installed on the inner side wall of the bottom shell 21, and a retaining ring 4 is installed on the outer side wall of the wheelchair controller body 1. The retaining ring 4 can be inserted into the bottom shell 21, and the protruding ring 3 can block the retaining ring 4.

[0026] In this technical solution, the convex ring 3 cooperates with the retaining ring 4 so that after the wheelchair controller body 1 is inserted into the bottom shell 21, the convex ring 3 blocks the retaining ring 4, effectively restricting the wheelchair controller body 1 from moving up and down in the bottom shell 21, and preventing the wheelchair controller body 1 from falling off.

[0027] In some technical solutions, the shock-absorbing rubber pad 25 includes a main pad 251, a secondary pad 252, a protruding post 253, a relief groove 254, and a balloon 255. The protruding post 253 is installed on the side wall of the main pad 251, and the relief groove 254 is opened on the side wall of the secondary pad 252. The protruding post 253 can be inserted into the relief groove 254. The balloon 255 is installed above the protruding post 253 and can fit against the inner wall of the relief groove 254.

[0028] In this technical solution, the shock-absorbing rubber pad 25 adopts a layered buffer design. When subjected to vibration, the protrusion 253 moves along the relief groove 254, and the balloon 255 absorbs vibration energy through compression deformation, which can efficiently attenuate the vibration impact force. Compared with a single rubber pad, the shock resistance is better and can better protect the internal circuit of the wheelchair controller body 1.

[0029] In some technical solutions, a through groove 5 is provided on the rear side wall of the bottom shell 21. The through groove 5 is connected to the inner cavity of the bottom shell 21. A rubber strip 6 is installed on the inner side wall of the through groove 5. A groove 7 is provided on the side wall of the rubber strip 6. The groove 7 can be inserted into the inner wall of the through groove 5.

[0030] In this technical solution, the through groove 5 is designed to facilitate the routing of the wiring of the wheelchair controller body 1. The rubber strip 6 is engaged with the inner wall of the through groove 5 through the groove body 7. The flexible wrapping of the rubber strip 6 can prevent the wiring from rubbing and wearing against the edge of the through groove 5.

[0031] In some technical solutions, a second Velcro strap 8 is installed on the outer side of the end of the strap 22, and the second Velcro strap 8 can be fastened to the upper wall of the wheelchair controller body 1.

[0032] In this technical solution, the second Velcro 8, as an extension of the strap 22, can make the two first Velcro 23 at the ends of the strap 22 fit more tightly after being tied to the upper wall of the wheelchair controller body 1, preventing them from loosening. At the same time, it can also form a longitudinal pressing fixation on the wheelchair controller body 1, further enhancing the installation stability of the device.

[0033] In some technical solutions, an anti-slip pad 9 is fitted to the inner wall of the fixing plate 24, and the anti-slip pad 9 is fitted to the external wheelchair armrest.

[0034] In this technical solution, the anti-slip mat 9 is made of a high-friction coefficient elastic material. After it is attached to the wheelchair armrest, it can significantly increase the static friction between the fixing plate 24 and the armrest, ensuring the stability of the installation position of this device.

[0035] Working principle: When installing this device, first fix the fixing mechanism 2 to the wheelchair armrest. Then, the bottom shell 21 is fastened to the wheelchair armrest by the fixing plates 24 on both sides. Then, the fixing mechanism 2 is fixed by the straps 22 on the fixing plates 24 and the first Velcro 23 on the straps 22. The two first Velcro 23 are attached to each other. Then, the wheelchair controller body 1 can be placed into the bottom shell 21. After insertion, the convex ring 3 and the retaining ring 4 cooperate to block the retaining ring 4 after the wheelchair controller body 1 is inserted into the bottom shell 21, effectively restricting the wheelchair controller body 1 from moving up and down in the bottom shell 21 and preventing the wheelchair controller body 1 from falling off. Then, the second Velcro 8 is used as an extension of the straps 22 and tied to the upper wall of the wheelchair controller body 1 to further enhance the installation stability of this device.

[0036] When the wheelchair encounters vibration, the protrusions 253 of the shock-absorbing rubber pad 25 are displaced in the relief groove 254, the balloon 255 is compressed and deformed to absorb the vibration energy, and the relative movement of the main pad 251 and the auxiliary pad 252 further buffers the impact force, ensuring that the wheelchair controller body 1 can still operate stably in a vibration environment, while protecting the internal components from damage.

[0037] 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.

[0038] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A shock-resistant wheelchair controller, comprising a wheelchair controller body (1), characterized in that: The lower end of the wheelchair controller body (1) is equipped with a fixing mechanism (2), and the wheelchair controller body (1) is installed on the armrest of the external wheelchair through the fixing mechanism (2); The fixing mechanism (2) includes a bottom shell (21), straps (22), first Velcro (23), fixing plates (24) and shock-absorbing rubber pads (25). Fixing plates (24) are installed on both the left and right sides of the lower wall of the bottom shell (21). The cross-section of the fixing plates (24) is L-shaped. The external wheelchair armrests can be inserted between the two fixing plates (24). The wheelchair controller body (1) can be inserted into the bottom shell (21). Straps (22) are installed on the side walls of the two fixing plates (24). First Velcro (23) is installed on the other end of the two straps (22). The two first Velcro (23) can be attached to each other. Shock-absorbing rubber pads (25) are installed on the inner side wall of the bottom shell (21). The shock-absorbing rubber pads (25) can be attached to the outer side wall of the wheelchair controller body (1).

2. The shock-resistant wheelchair controller according to claim 1, characterized in that: The inner wall of the bottom shell (21) is fitted with a protruding ring (3), and the outer wall of the wheelchair controller body (1) is fitted with a retaining ring (4). The retaining ring (4) can be inserted into the bottom shell (21), and the protruding ring (3) can block the retaining ring (4).

3. The shock-resistant wheelchair controller according to claim 1, characterized in that: The shock-absorbing rubber pad (25) includes a main pad plate (251), a secondary pad plate (252), a protruding post (253), a relief groove (254), and a balloon (255). The side wall of the main pad plate (251) is equipped with a protruding post (253), and the side wall of the secondary pad plate (252) is provided with a relief groove (254). The protruding post (253) can be inserted into the relief groove (254), and the balloon (255) is installed above the protruding post (253). The balloon (255) can fit against the inner wall of the relief groove (254).

4. The shock-resistant wheelchair controller according to claim 1, characterized in that: The rear side wall of the bottom shell (21) is provided with a through groove (5), which is connected to the inner cavity of the bottom shell (21). A rubber strip (6) is installed on the inner side wall of the through groove (5), and a groove (7) is provided on the side wall of the rubber strip (6). The groove (7) can be inserted into the inner wall of the through groove (5).

5. The shock-resistant wheelchair controller according to claim 1, characterized in that: A second Velcro strap (8) is installed on the outer side of the end of the strap (22), which can be fastened to the upper wall of the wheelchair controller body (1).

6. The shock-resistant wheelchair controller according to claim 1, characterized in that: An anti-slip pad (9) is fitted to the inner wall of the fixing plate (24), and the anti-slip pad (9) is fitted to the outer wheelchair armrest.

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