Damping device for rear wheel of bicycle

Abstract

The utility model discloses a damping device for a bicycle rear wheel, and relates to the technical field of damping devices, the damping device comprises a chassis, a damper, a top disc and a buffer spring, the outer wall of the damper is sleeved with a telescopic pipe, the telescopic pipe is located in the buffer spring, and the outer walls of the two ends of the telescopic pipe are both provided with annular clamping blocks; annular grooves matched with the telescopic pipes are formed in the bottom disc and the top disc correspondingly, and annular clamping grooves matched with the annular clamping blocks are formed in the inner walls of the annular grooves. According to the utility model, through the use of the telescopic pipe, the damper is waterproof and prevented from being contacted with water, so that the damper is prevented from being corroded by rainwater, the damper is further protected, and the service life of the damper is prolonged; and through mutual cooperative use of the annular clamping blocks and the annular clamping grooves, mounting of the telescopic pipe is facilitated, operation is easy and convenient, and the mounting or dismounting efficiency of the telescopic pipe is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shock absorption devices, in particular to a shock absorption device for the rear wheel of a bicycle. Background Art

[0002] A bicycle, also known as a pedal bike or a bicycle, is a means of transportation and a carrier powered by human mechanical transmission. In order to reduce the shock absorption effect of the bicycle, a shock absorption device needs to be installed on the rear wheel of the bicycle. The shock absorption device is a device used to suppress the oscillation when the spring rebounds after absorbing shock and the impact from the road surface. However, when the existing bicycle shock absorption device is in use, the bicycle is generally parked outside, resulting in the shock absorption device being exposed to the outside. The iron in the shock absorption device will be corroded by rainwater, resulting in the shock absorption device being corroded and damaged by rainwater, reducing the service life of the shock absorption device. Therefore, a shock absorption device for the rear wheel of a bicycle is proposed to solve the above problems. Summary of the Invention

[0003] The purpose of the utility model is to provide a shock absorption device for the rear wheel of a bicycle in order to solve the above problems.

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

[0005] A shock absorption device for the rear wheel of a bicycle includes a chassis, a damper, a top plate and a buffer spring. A telescopic tube is sleeved on the outer wall of the damper, and the telescopic tube is located inside the buffer spring. Annular blocks are arranged on the outer walls of both ends of the telescopic tube. Annular grooves are respectively formed on the chassis and the top plate to cooperate with the telescopic tube, and annular clamping grooves are formed on the inner wall of the annular groove to cooperate with the annular blocks.

[0006] Preferably, both the annular block and the annular clamping groove are barbed structures.

[0007] Preferably, the annular block is made of flexible rubber material.

[0008] Preferably, a first connecting plate is arranged on the chassis, a second connecting plate is arranged on the top plate, and circular holes are respectively formed on the first connecting plate and the second connecting plate. Wear-resistant rings are arranged on the inner walls of the circular holes.

[0009] Preferably, a plurality of nylon ropes are uniformly arranged on the inner wall of the telescopic tube, and the nylon ropes are parallel to the telescopic tube.

[0010] In summary, due to the adoption of the above technical scheme, the beneficial effects of the utility model are as follows:

[0011] By using the telescopic tube, the utility model facilitates waterproofing of the damper, avoids water contact with the damper, thereby preventing the damper from being corroded by rainwater, further facilitating the protection of the damper, and increasing the service life of the damper; by using the annular clamping block and the annular clamping groove in cooperation, the installation of the telescopic tube is facilitated, the operation is simple and convenient, and the installation or disassembly efficiency of the telescopic tube is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 FIG. shows a schematic structural view of a front perspective provided according to an embodiment of the present utility model;

[0013] Figure 2 FIG. shows a schematic cross-sectional structure view of the telescopic tube provided according to an embodiment of the present utility model;

[0014] Figure 3 FIG. shows a schematic connection structure view of the telescopic tube and the top plate provided according to an embodiment of the present utility model;

[0015] Figure 4 is Figure 3 a partial enlarged view at A in

[0016] Figure 5 FIG. shows a schematic cross-sectional structure view of a downward perspective of the telescopic tube provided according to an embodiment of the present utility model.

[0017] LEGEND DESCRIPTION:

[0018] 1. Chassis; 2. First connecting plate; 3. Buffer spring; 4. Telescopic tube; 5. Top plate; 6. Second connecting plate; 7. Damper; 8. Annular clamping groove; 9. Annular groove; 10. Annular clamping block; 11. Nylon rope; 12. Circular hole; 13. Wear-resistant ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0020] Please refer to Figures 1-5 , the present utility model provides a technical solution:

[0021] A shock absorption device for the rear wheel of a bicycle, comprising a chassis 1, a damper 7 (prior art) provided on the chassis 1 for consuming the generated kinetic energy, a top plate 5 provided on the top of the damper 7, and a buffer spring 3 sleeved on the outer wall of the damper 7, which plays a role in shock absorption; a telescopic tube 4 is sleeved on the outer wall of the damper 7, and the telescopic tube 4 is located inside the buffer spring 3. Annular blocks 10 are provided on the outer walls at both ends of the telescopic tube 4. Annular grooves 9 are provided on both the chassis 1 and the top plate 5 to cooperate with the telescopic tube 4. Annular clamping grooves 8 are provided on the inner wall of the annular groove 9 to cooperate with the annular blocks 10. By using the telescopic tube 4, it is convenient to waterproof the damper 7, avoid water from contacting the damper 7, thereby preventing the damper 7 from being corroded by rainwater, and further facilitating the protection of the damper 7 and improving the service life of the damper 7; wherein, through the mutual cooperation of the annular blocks 10 and the annular clamping grooves 8, it is convenient to install the telescopic tube 4, the operation is simple and convenient, and the installation or disassembly efficiency of the telescopic tube 4 is improved.

[0022] In the present utility model, both the annular blocks 10 and the annular clamping grooves 8 are barbed structures, which facilitate the annular blocks 10 to enter the annular clamping grooves 8 and can be clamped in the annular clamping grooves 8 to realize the installation of the telescopic tube 4.

[0023] In the present utility model, the annular blocks 10 are made of flexible rubber material, which facilitates the deformation and reset of the annular blocks 10, thereby facilitating the disassembly of the telescopic tube 4.

[0024] In the present utility model, a first connecting plate 2 is provided on the chassis 1, a second connecting plate 6 is provided on the top plate 5, and circular holes 12 are provided on both the first connecting plate 2 and the second connecting plate 6. Wear-resistant rings 13 are provided on the inner walls of the circular holes 12 to facilitate the protection of the circular holes 12 and improve the service life of the first connecting plate 2 and the second connecting plate 6.

[0025] In the present utility model, a plurality of nylon ropes 11 are evenly provided on the inner wall of the telescopic tube 4, and the nylon ropes 11 are parallel to the telescopic tube 4. By using the nylon ropes 11, the breakage of the telescopic tube 4 is avoided, thereby improving the service life of the telescopic tube 4.

[0026] Working principle: When the present utility model is in use, during the installation of the shock absorption device, first install the first connecting plate 2 on the rear wheel of the bicycle through bolts, and then install the second connecting plate 6 under the bicycle seat through bolts; when the bicycle vibrates, under the action of the buffer spring 3, it plays a buffering role, and then uses the damper 7 to consume the generated energy to achieve the shock absorption effect;

[0027] By using the telescopic tube 4, rainwater can be isolated outside the damper 7, avoiding rainwater from contacting the damper 7, thereby preventing the damper 7 from being corroded and improving the service life of the damper 7;

[0028] Among them, when installing the telescopic pipe 4, just pull the telescopic pipe 4 to deform the annular clamping block 10, resulting in the separation of the annular clamping block 10 from the annular clamping groove 8, so as to realize the disassembly of the telescopic pipe 4; at the same time, when installing the telescopic pipe 4, insert one end of the telescopic pipe 4 into the annular groove 9 and squeeze it to make the annular clamping block 10 enter the annular clamping groove 8, so as to realize the fixation of the telescopic pipe 4, thus realizing the installation of the telescopic pipe 4. The operation is simple and convenient, improving the working efficiency of the installation or disassembly of the telescopic pipe 4.

[0029] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious 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 invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A shock absorber device for a bicycle rear wheel, comprising a chassis (1), a damper (7), a top plate (5) and a buffer spring (3), characterized in that, A telescopic tube (4) is sleeved on the outer wall of the damper (7), and the telescopic tube (4) is located inside the buffer spring (3). Ring-shaped blocks (10) are arranged on the outer walls at both ends of the telescopic tube (4). Ring-shaped grooves (9) are formed on the chassis (1) and the top plate (5) in cooperation with the telescopic tube (4), and ring-shaped clamping grooves (8) are formed on the inner walls of the ring-shaped grooves (9) in cooperation with the ring-shaped blocks (10).

2. The shock absorption device for the rear wheel of a bicycle according to claim 1, characterized in that, Both the ring-shaped block (10) and the ring-shaped clamping groove (8) are barb structures.

3. A shock-absorbing device for a bicycle rear wheel according to claim 1, characterized in that, The ring-shaped block (10) is made of flexible rubber material.

4. The shock absorption device for the rear wheel of a bicycle according to claim 1, characterized in that, A first connecting plate (2) is arranged on the chassis (1), a second connecting plate (6) is arranged on the top plate (5), and circular holes (12) are formed in both the first connecting plate (2) and the second connecting plate (6). Wear-resistant rings (13) are arranged on the inner walls of the circular holes (12).

5. The shock absorption device for a bicycle rear wheel according to claim 1, wherein, A plurality of nylon ropes (11) are evenly arranged on the inner wall of the telescopic tube (4), and the nylon ropes (11) are parallel to the telescopic tube (4).

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