Anti-collapse wheel structure

Abstract

The utility model relates to the technical field of wheels, and particularly discloses an anti-collapse wheel structure which comprises a rim, a tire fixedly connected to the outer wall of the rim, a spoke fixedly connected to the inner wall of the rim, a spoke plate fixedly connected to the end, away from the inner wall of the rim, of the spoke, and a detrapping mechanism arranged at the front end of the rim and used for helping a vehicle get rid of dilemma. According to the utility model, under the mutual cooperation of the connecting frame, the fixing assembly and the supporting assembly in the detrapping mechanism, when the wheel is detrapped, only the stored supporting arm needs to be rotated, and then the rotating and detrapped wheel is lifted by the supporting arm, so that the wheel is gradually separated from the ground; therefore, the wheels can be automatically released from muddy or hollow terrains, and the problem that when the electric wheelchair runs on the road surface, the wheels possibly sink into the muddy terrains, and consequently movement is blocked is effectively solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of wheels, and in particular relates to an anti-collapse wheel structure. Background Art

[0002] With the continuous development of electric wheelchair technology, it plays an increasingly important role in assisting people with limited mobility in their daily travel. Electric wheelchairs are mainly composed of two major components: the drive system and the body structure. The wheels are the key components that support and move the wheelchair.

[0003] In actual use, when an electric wheelchair is traveling on muddy roads or bumpy areas, due to the design limitations of the wheels themselves, such as the small contact area of the tires and the hard tire material, the wheels can easily get stuck in the mud, making the wheelchair unable to move effectively, thereby affecting the user experience. Utility Model Content

[0004] The purpose of the utility model is to provide an anti-collapse wheel structure to solve the problem in the prior art that when an electric wheelchair is traveling on a muddy road or a pothole area, the wheels are easily caused to sink into the mud, making the wheelchair unable to move effectively.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] An anti-collapse wheel structure includes a rim, a tire fixedly connected to the outer wall of the rim, spokes fixedly connected to the inner wall of the rim, a spoke plate fixedly connected to one end of the spoke away from the inner wall of the rim, and a release mechanism provided at the front end of the rim, the release mechanism being used to help the vehicle escape from a difficult situation;

[0007] The disengaging mechanism includes a connecting frame, a fixing assembly and a supporting assembly. The connecting frame is provided at the front end of the rim. The connecting frame and the rim are fixedly connected by a fixing assembly. The fixing assembly includes a connecting block and a clamping block. The rear end of the connecting frame is equidistantly fixedly connected to the connecting block. The rear end of the connecting block passes through the interior of the rim, and the outer wall of the connecting block abuts against the inner wall of the rim.

[0008] Preferably, the side wall of the connection block is provided with a limiting sliding groove, the side wall of the connection block is provided with limiting grooves at equal intervals, and the limiting grooves are communicated with the limiting sliding grooves.

[0009] Preferably: a first slider is slidably connected inside the limiting groove, a clamping block is fixedly connected to the rear end of the first slider, the clamping block is located inside the limiting groove and slidably connected thereto, the front end of the clamping block abuts against the rear end of the spoke, a first spring is fixedly connected to the side wall of the first slider, and the end of the first spring away from the first slider is fixedly connected to the inner wall of the limiting groove.

[0010] Preferably, the side wall of the connecting frame is rotatably connected to a connecting ring, and multiple groups of the first sliding blocks are fixedly connected to the inner wall of the connecting ring.

[0011] Preferably: the support assembly includes a support arm and a support foot, a first receiving groove is provided on the front end surface of the connecting frame, the support arm is rotatably connected to the inside of the first receiving groove via a rotating shaft, the left end of the support arm is fixedly connected to the support foot, and the support arm and the connecting frame are fixedly connected by a limiting member.

[0012] Preferably: the limiting member includes a second spring and a protrusion, a second receiving groove is opened inside the support arm, the second receiving groove is slidably connected to the second slider up and down, the two groups of the second sliders are fixedly connected by the second spring, the second slider is fixedly connected to the protrusion at one end away from the second spring, a card slot is opened on the inner wall of the first receiving groove, the card slot is provided in two groups and is located on both sides of the rotating shaft, the protrusion is located inside the card slot and is engaged with the card slot.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model provides multiple groups of connecting blocks at the rear end of the connecting frame to achieve the initial fixation of the connecting frame inside the rim; then, the connecting frame is further firmly connected to the wheel spokes by using fixing components, thereby ensuring the stability and reliability of the entire structure.

[0015] 2. The utility model uses the mutual cooperation of the limiter, the support arm and the support foot. When the wheel rotates, it can drive the connecting frame to rotate, thereby driving the support foot to contact the ground. As the wheel rotates further, the support arm lifts the wheel upward, causing the wheel to gradually leave the ground, thereby helping the wheel to free itself from muddy or bumpy terrain, effectively solving the problem of the wheel getting stuck in the mud and causing the movement of the electric wheelchair to be hindered when driving on such roads. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall main structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall rear view structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the partial cross-section structure of the release mechanism of the utility model;

[0019] Figure 4 For this utility model Figure 3 A schematic diagram of the enlarged structure of part A;

[0020] Figure 5 This is a schematic diagram of the exploded structure of the support arm and the connecting frame of the utility model;

[0021] Figure 6 It is a schematic diagram of the partial cross-sectional planar structure of the support arm of the utility model.

[0022] In the figure: 1. rim; 11. spoke; 12. spoke plate; 13. tire; 2. disengagement mechanism; 21. connecting frame; 211. first receiving slot; 212. second receiving slot; 213. limiting slot; 22. fixing assembly; 221. connecting block; 2211. limiting slide; 222. first spring; 223. first slider; 224. clamping block; 225. connecting ring; 23. supporting assembly; 231. supporting arm; 232. supporting foot; 233. clamping slot; 234. limiting member; 2341. second spring; 2342. second slider; 2343. protrusion. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Reference Figures 1-6 As shown, the utility model provides an anti-collapse wheel structure, including a rim 1, an outer wall of the rim 1 is fixedly connected to a tire 13, an inner wall of the rim 1 is fixedly connected to a spoke 11, and an end of the spoke 11 away from the inner wall of the rim 1 is fixedly connected to a spoke plate 12, and a disengagement mechanism 2 is provided at the front end of the rim 1, and the disengagement mechanism 2 is used to help the vehicle get out of trouble. Through the cooperation of the connecting frame 21, the fixing assembly 22 and the supporting assembly 23 in the disengagement mechanism 2, when the wheel gets into trouble, it is only necessary to rotate the stored support arm 231 180 degrees, and then the wheel is rotated, and the trapped wheel is lifted by the support arm 231, so that the wheel gradually leaves the ground, thereby helping the wheel to free itself from muddy or bumpy terrain, effectively solving the problem that the wheel of the electric wheelchair is stuck in mud and the movement is hindered when driving on such roads.

[0025] In a further embodiment, referring to Figure 2-Figure 4The disengaging mechanism 2 includes a connecting frame 21, a fixing assembly 22 and a supporting assembly 23. The front end of the rim 1 is provided with a connecting frame 21. The connecting frame 21 and the rim 1 are fixedly connected through the fixing assembly 22. The fixing assembly 22 includes a connecting block 221 and a clamping block 224. The rear end of the connecting frame 21 is equidistantly fixedly connected to the connecting block 221. The rear end of the connecting block 221 penetrates into the interior of the rim 1. The outer wall of the connecting block 221 abuts against the inner wall of the rim 1. A limiting sliding groove 2211 is provided on the side wall of the connecting block 221. A limiting groove 213 is equidistantly provided on the side wall of the connecting block 221. The limiting groove 213 and the limiting The slide grooves 2211 are connected to each other, and the first slider 223 is slidably connected inside the limiting groove 213. The rear end of the first slider 223 is fixedly connected to the block 224. The block 224 is located inside the limiting slide groove 2211 and is slidably connected thereto. The front end of the limiting block 224 abuts against the rear end of the spoke 11. The side wall of the first slider 223 is fixedly connected to the first spring 222. The end of the first spring 222 away from the first slider 223 is fixedly connected to the inner wall of the limiting groove 213. The side wall of the connecting frame 21 is rotatably connected to the connecting ring 225, and multiple groups of first sliders 223 are fixedly connected to the inner wall of the connecting ring 225.

[0026] In this embodiment, the first slider 223 is driven to move by rotating the connecting ring 225, and the movement of the first slider 223 drives the block 224 to move, so that the block 224 moves to the inside of the limiting slide groove 2211, and then the connecting block 221 in the connecting frame 21 is moved to the inside of the rim 1 to achieve preliminary fixation of the connecting frame 21, and then the connecting ring 225 is loosened, and the deformation is restored by the first spring 222, thereby driving the first slider 223 to move, thereby driving the block 224 to move, and then the front end of the block 224 is in contact with the rear end of the spoke 11, thereby further fixing the connecting frame 21, thereby achieving the effect of facilitating the disassembly and installation of the connecting frame 21.

[0027] In a further embodiment, referring to Figure 5-Figure 6 The support assembly 23 includes a support arm 231 and a support foot 232. The front end surface of the connecting frame 21 is provided with a first receiving groove 211, and the support arm 231 is rotatably connected to the inside of the first receiving groove 211 by a rotating shaft. The left end of the support arm 231 is fixedly connected to the supporting foot 232, and the support arm 231 and the connecting frame 21 are fixedly connected by a limiting member 234. The limiting member 234 includes a second spring 2341 and a protrusion 2343. A second receiving groove 212 is provided inside the support arm 231, and the second receiving groove 212 is slidably connected to the second slider 2342 up and down. The two groups of second sliders 2342 are fixedly connected by the second spring 2341, and the second slider 2342 is fixedly connected to the end away from the second spring 2341 with the protrusion 2343. The inner wall of the first receiving groove 211 is provided with a clamping groove 233, and the clamping groove 233 is provided with two groups and is located on both sides of the rotating shaft. The protrusion 2343 is located inside the clamping groove 233 and engages with it.

[0028] In this embodiment, when the wheel is stuck, the stored support arm 231 is rotated 180 degrees to change the position of the support foot 232, and the cam in the support arm 231 is engaged with the slot 233 on the right side of the rotating shaft to fix the support arm 231. At this time, when the wheel is rotating, the stuck wheel is lifted by the support arm 231, so that the wheel gradually leaves the ground, thereby helping the wheel to free itself from muddy or bumpy terrain, effectively solving the problem of the wheel getting stuck in the mud and causing movement to be obstructed when the electric wheelchair is driving on such roads.

[0029] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-collapse wheel structure, comprising a rim (1), characterized in that: The outer wall of the rim (1) is fixedly connected to a tire (13), the inner wall of the rim (1) is fixedly connected to a spoke (11), one end of the spoke (11) away from the inner wall of the rim (1) is fixedly connected to a spoke plate (12), and a disengagement mechanism (2) is provided at the front end of the rim (1), and the disengagement mechanism (2) is used to help the vehicle escape from a predicament; The disengaging mechanism (2) comprises a connecting frame (21), a fixing assembly (22) and a supporting assembly (23); the front end of the rim (1) is provided with the connecting frame (21); the connecting frame (21) and the rim (1) are fixedly connected via the fixing assembly (22); the fixing assembly (22) comprises a connecting block (221) and a clamping block (224); the rear end of the connecting frame (21) is fixedly connected to the connecting block (221) at equal distances; the rear end of the connecting block (221) penetrates into the interior of the rim (1); the outer wall of the connecting block (221) and the inner wall of the rim (1) abut against each other.

2. The anti-collapse wheel structure according to claim 1, characterized in that: The side wall of the connecting block (221) is provided with a limiting sliding groove (2211), and the side wall of the connecting block (221) is provided with limiting grooves (213) at equal intervals, and the limiting grooves (213) and the limiting sliding grooves (2211) are communicated with each other.

3. The anti-collapse wheel structure according to claim 2, characterized in that: A first slider (223) is slidably connected inside the limiting groove (213), a clamping block (224) is fixedly connected to the rear end of the first slider (223), the clamping block (224) is located inside the limiting sliding groove (2211) and slidably connected thereto, the front end of the clamping block (224) abuts against the rear end of the spoke (11), a first spring (222) is fixedly connected to the side wall of the first slider (223), and one end of the first spring (222) away from the first slider (223) is fixedly connected to the inner wall of the limiting groove (213).

4. The anti-collapse wheel structure according to claim 3, characterized in that: The side wall of the connecting frame (21) is rotatably connected to a connecting ring (225), and a plurality of groups of the first sliding blocks (223) are fixedly connected to the inner wall of the connecting ring (225).

5. The anti-collapse wheel structure according to claim 1, characterized in that: The support assembly (23) comprises a support arm and a support foot (232); a first receiving slot (211) is provided on the front end surface of the connecting frame (21); a support arm (231) is rotatably connected to the interior of the first receiving slot (211) via a rotating shaft; a support foot (232) is fixedly connected to the left end of the support arm (231); and the support arm (231) and the connecting frame (21) are fixedly connected via a limiting member (234).

6. The anti-collapse wheel structure according to claim 5, characterized in that: The limiting member (234) includes a second spring (2341) and a protrusion (2343); a second receiving groove (212) is provided inside the support arm (231); the second receiving groove (212) is slidably connected to the second slider (2342) up and down; two groups of the second sliders (2342) are fixedly connected via the second spring (2341); one end of the second slider (2342) away from the second spring (2341) is fixedly connected to the protrusion (2343); a clamping groove (233) is provided on the inner wall of the first receiving groove (211); the clamping groove (233) is provided in two groups and is located on both sides of the rotating shaft; the protrusion (2343) is located inside the clamping groove (233) and is engaged with the clamping groove (233).

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