Multifunctional rotation-stopping chain regulator

Abstract

The utility model discloses a multifunctional rotation-stopping chain regulator, which relates to the technical field of bicycles and comprises a rear shaft, a chain wheel and a rear hook claw, and a regulating part is arranged in the rear hook claw. The adjusting part comprises a sleeve rotationally arranged in the rear hook claw, a lead screw arranged in the sleeve and an abutting plate fixedly connected to the outer end of the lead screw, the abutting plate and the rear hook claw are arranged in a sliding mode, and an inner hexagonal groove is formed in the outer end of the sleeve; through the use of the adjusting piece, the rear axle can be conveniently propped against, so that the three degrees of freedom of the rear axle can be conveniently locked, the phenomenon that the rear axle moves due to bumping of the rear axle in the running process of the bicycle is avoided, the phenomena that a rear wheel deviates and a chain is loosened are avoided, riding of the bicycle is facilitated, and the service life of the bicycle is prolonged. Meanwhile, the tension degree of the chain is convenient to adjust, the phenomenon that the chain is loosened during riding is avoided, and therefore riding of the bicycle is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycles, in particular to a multifunctional anti-rotation chain adjuster. Background Art

[0002] In a traditional bicycle, the rear axle is locked to the bicycle hooks by the left and right nuts. The right hook has the chain force and the freedom of displacement forward, while the left hook has the freedom of displacement in the front and rear directions. When the bicycle is running, the rear wheel may be displaced at the locking position of the hooks due to the sudden force of the rider or the sudden impact of the rough and bumpy road surface, causing the rear wheel to be displaced and the chain to loosen, affecting the riding of the bicycle. Therefore, a multifunctional anti-rotation chain adjuster is proposed to solve the above problems. Summary of the invention

[0003] The purpose of the utility model is to solve the above problems and to provide a multifunctional anti-rotation chain adjuster.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A multifunctional anti-rotation chain adjuster comprises a rear axle, a sprocket and a rear hook, wherein an adjusting member for adjusting the rear axle is arranged in the rear hook;

[0006] The adjusting member comprises a sleeve rotatably arranged in the rear hook claw, a screw rod arranged in the sleeve and a contact plate fixedly connected to the outer end of the screw rod, and the contact plate is slidably arranged with the rear hook claw, and a hexagonal groove is opened at the outer end of the sleeve.

[0007] Preferably, the sleeve is provided with an internal thread matching with the screw rod.

[0008] Preferably, an arc-shaped groove is provided on the side surface of the abutment plate, and an arc-shaped anti-friction sheet is provided on the inner wall of the arc-shaped groove.

[0009] Preferably, sliding blocks are provided on the top and bottom surfaces of the abutment plate, and sliding grooves are provided on the inner wall of the rear hook to cooperate with the sliding blocks.

[0010] Preferably, a ball groove is provided on the sliding block, a ball is movably arranged in the ball groove, and the ball contacts the inner wall of the rear hook claw.

[0011] Preferably, both ends of the rear axle are provided with external threads, and outer walls at both ends of the rear axle are provided with nuts matching with the external threads.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0013] The utility model makes it easy to resist the rear axle by using the adjusting piece, so as to lock the three degrees of freedom of the rear axle, thereby preventing the rear axle from moving due to bumps during the running of the bicycle, thereby preventing the rear wheel from being offset and the chain from being loosened, which is beneficial to the riding of the bicycle. At the same time, it is also convenient to adjust the tension of the chain, thereby preventing the chain from being loosened during riding, which is beneficial to the riding of the bicycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the structure of a front view provided according to an embodiment of the utility model is shown;

[0015] Figure 2 A schematic diagram of the structure of a rear view angle provided according to an embodiment of the utility model is shown;

[0016] Figure 3 A schematic structural diagram of an adjusting member provided according to an embodiment of the utility model is shown.

[0017] Legend:

[0018] 1. Rear axle; 2. Sprocket; 3. Rear hook; 4. Nut; 5. Screw; 6. Sleeve; 7. Hexagon socket; 8. Ball; 9. Slide; 10. Contact plate; 11. Arc-shaped anti-friction plate; 12. Internal thread; 13. Slider. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figures 1-3 , the utility model provides a technical solution:

[0021] A multifunctional anti-rotation chain adjuster comprises a rear axle 1, a sprocket 2 fixed to the outer wall of one end of the rear axle 1 and rear hooks 3 slidably arranged on the two ends of the rear axle 1. An adjusting piece for adjusting the rear axle 1 is arranged in the rear hook 3. By using the adjusting piece, it is convenient to resist the rear axle 1, so that the three degrees of freedom of the rear axle 1 are locked, and the rear axle 1 is prevented from moving due to bumps during the riding of the bicycle, thereby preventing the rear wheel from being displaced and the chain from being loosened, which is beneficial to the riding of the bicycle. At the same time, it is also convenient to adjust the tension of the chain, and the chain from being loosened during riding is avoided, which is beneficial to the riding of the bicycle.

[0022] The adjusting member includes a sleeve 6 rotatably arranged in the rear hook 3, a screw rod 5 arranged in the sleeve 6 and a contact plate 10 fixedly connected to the outer end of the screw rod 5, and the contact plate 10 is slidably arranged with the rear hook 3. An inner hexagonal groove 7 is provided at the outer end of the sleeve 6. By using the inner hexagonal groove 7, it is convenient to adjust the tension of the chain from the outside, the operation is simple and convenient, and the working efficiency of the chain tension is improved.

[0023] In the present invention, an internal thread 12 matching with the screw rod 5 is provided in the sleeve 6, so as to facilitate the movement of the screw rod 5 and thus facilitate the adjustment of the tension of the chain.

[0024] In the utility model, an arc-shaped groove is provided on the side of the contact plate 10, which is convenient for contacting the rear axle 1 without affecting the rotation of the rear axle 1; an arc-shaped anti-friction sheet 11 is provided on the inner wall of the arc-shaped groove, and the arc-shaped anti-friction sheet 11 is made of metal chromium. The hardness of metal chromium is used to protect the contact plate 10, avoid direct contact and wear between the contact plate 10 and the rear axle 1, thereby increasing the service life of the contact plate 10.

[0025] In the present invention, sliders 13 are provided on the top and bottom surfaces of the resistance plate 10, and a slide groove 9 is provided on the inner wall of the rear hook 3 to cooperate with the slider 13. The slider 13 and the slide groove 9 cooperate with each other to facilitate the sliding of the resistance plate 10.

[0026] In the utility model, a ball groove is opened on the slider 13, and a ball 8 is movably arranged in the ball groove, and the ball 8 contacts the inner wall of the rear hook 3. By using the ball 8, the friction between the slider 13 and the slide groove 9 is reduced, the slider 13 is prevented from being damaged by wear, and the service life of the slider 13 is further improved.

[0027] In the present invention, external threads are provided at both ends of the rear axle 1, and nuts 4 matching with the external threads are provided on the outer walls at both ends of the rear axle 1. By using the nuts 4, the rear axle 1 can be easily fixed on the rear hook 3 to achieve the installation of the rear wheel.

[0028] Working principle: When the utility model is used, when installing the rear wheel, the rear wheel is first installed on the rear axle 1, and then the rear axle 1 is installed on the rear hook 3, and the rear hook 3 is welded to the bicycle frame; then the sleeve 6 is rotated by the hexagonal wrench, and the screw rod 5 is moved by the action of the internal thread 12 in the sleeve 6, thereby driving the contact plate 10 to move, and the contact plate 10 contacts the rear axle 1 to tighten the chain. When the chain is tightened, the rear axle 1 is fixed to the rear hook 3 with the nut 4;

[0029] When adjusting the tension of the chain, the sleeve 6 is rotated to extend the screw rod 5 and push the abutment plate 10 to abut the rear axle 1, thereby tensioning the chain and adjusting the tension of the chain.

[0030] The foregoing description of the embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to the embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multifunctional anti-rotation chain adjuster, comprising a rear axle (1), a sprocket (2) and a rear hook (3), characterized in that: An adjusting member for adjusting the rear axle (1) is provided inside the rear hook (3); The adjusting member comprises a sleeve (6) rotatably arranged in the rear hook (3), a screw rod (5) arranged in the sleeve (6) and a contact plate (10) fixedly connected to the outer end of the screw rod (5), and the contact plate (10) is slidably arranged with the rear hook (3), and the outer end of the sleeve (6) is provided with an inner hexagonal groove (7).

2. A multifunctional anti-rotation chain adjuster according to claim 1, characterized in that: The sleeve (6) is provided with an internal thread (12) which matches the screw rod (5).

3. A multifunctional anti-rotation chain adjuster according to claim 1, characterized in that: An arc-shaped groove is provided on the side surface of the abutment plate (10), and an arc-shaped anti-friction sheet (11) is provided on the inner wall of the arc-shaped groove.

4. A multifunctional anti-rotation chain adjuster according to claim 1, characterized in that: Slide blocks (13) are provided on the top and bottom surfaces of the abutment plate (10), and a slide groove (9) is provided on the inner wall of the rear hook claw (3) to cooperate with the slide block (13).

5. A multifunctional anti-rotation chain adjuster according to claim 4, characterized in that: The slide block (13) is provided with a ball groove, in which a ball (8) is movably mounted, and the ball (8) is in contact with the inner wall of the rear hook claw (3).

6. A multifunctional anti-rotation chain adjuster according to claim 1, characterized in that: External threads are formed at both ends of the rear axle (1), and nuts (4) matching the external threads are formed on the outer walls at both ends of the rear axle (1).

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