Damping seat tube with damping function

Abstract

The utility model discloses a shock-absorbing seat tube with damping, which comprises a lifting inner tube and a fixed outer tube, the upper end of the lifting inner tube is used for mounting a saddle, the lower end of the lifting inner tube extends into the fixed outer tube, and the lifting inner tube can axially slide relative to the fixed outer tube; when the seat tube is bumpy, the lifting inner tube compresses the second elastic piece through the connecting tube, the first elastic piece located on the upper portion of the mounting table falls down along with the mounting table, the upper portion of the first elastic piece is separated from the limiting ring, then the second elastic piece recovers deformation, and the second elastic piece pushes the first elastic piece to move upwards through the mounting table. After the first elastic piece makes contact with the limiting ring, the mounting table can be buffered, then the lifting inner pipe is buffered, the rebound amplitude of the lifting inner pipe is reduced, the experience of a rider is improved, and the comfort level of the rider is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of bicycle accessories, especially relates to a damping shock-absorbing seat tube. BACKGROUND

[0002] Cycling is becoming an increasingly popular form of recreation and transportation. In addition, for both amateur and professional athletes, cycling has become a very popular competitive sport. Whether the bicycle is used for recreation, transportation, or competition, the bicycle industry continues to improve various components of the bicycle. One bicycle component that has been extensively redesigned is the bicycle seat tube assembly.

[0003] The existing bicycle seat tube, the rebound amplitude of the lifting inner tube is too large in the damping process between the lifting inner tube and the fixed outer tube, which affects the experience of the rider and the comfort of the rider.

[0004] Therefore, how to provide a damping shock-absorbing seat tube, how to reduce the rebound amplitude of the lifting inner tube in the damping process between the lifting inner tube and the fixed outer tube, is a technical problem that technicians in the field urgently need to solve. SUMMARY

[0005] The utility model mainly solves the technical problem to provide a damping shock-absorbing seat tube, when the seat tube encounters bumps, the lifting inner tube compresses the second elastic element through the connecting pipe, the first elastic element located on the upper part of the mounting table falls together with the mounting table, the upper part of the first elastic element is separated from the limiting ring, then the second elastic element restores the deformation, the second elastic element pushes the first elastic element to move upwards through the mounting table, after the first elastic element contacts the limiting ring, the mounting table is buffered, and then the lifting inner tube is buffered, the rebound amplitude of the lifting inner tube is reduced, the experience of the rider is improved, and the comfort of the rider is improved.

[0006] To solve the above technical problems, one technical scheme of the utility model is as follows: a damping shock-absorbing seat tube, the seat tube comprises:

[0007] The lifting inner tube is used for installing the saddle at the upper end, and the lower end extends into the fixed outer tube, and the lifting inner tube can axially slide relative to the fixed outer tube;

[0008] The lower part of the lifting inner tube is provided with a connecting pipe, the lower part of the connecting pipe is provided with a mounting table, the upper part of the mounting table is provided with a first elastic element, the lower part of the mounting table is provided with a second elastic element, the inner wall of the fixed outer tube is embedded with a limiting ring, the first elastic element is sleeved on the outer periphery of the connecting pipe and located between the mounting table and the limiting ring, the bottom of the fixed outer tube is provided with a bottom cover, and the second elastic element is located between the mounting table and the bottom cover.

[0009] Preferably, a rubber pad is provided on the upper part of the first elastic element, and the rubber pad is sleeved on the outer periphery of the connecting pipe.

[0010] Preferably, a limiting post is provided at the bottom of the fixed outer tube, and a second elastic element is sleeved on the outer periphery of the limiting post.

[0011] Preferably, both the first elastic element and the second elastic element are springs.

[0012] Preferably, the mounting platform is connected to the lower part of the connecting pipe by bolts, and the upper part of the connecting pipe is provided with a connector. The connector is threadedly connected to the lower part of the lifting inner pipe, and the connector and the connecting pipe are connected by bolts.

[0013] Preferably, a dust cover is provided on the upper part of the fixed outer tube, and a dust pad is provided between the dust cover and the lifting inner tube.

[0014] The beneficial effects of this utility model are as follows:

[0015] When the seatpost encounters a bump, the lowering inner tube compresses the second elastic element through the connecting tube. The first elastic element, located on the upper part of the mounting platform, falls down with the mounting platform. The upper part of the first elastic element separates from the limiting ring. Then, the second elastic element returns to its original shape and pushes the first elastic element upward through the mounting platform. After the first elastic element contacts the limiting ring, it cushions the mounting platform, which in turn cushions the lowering inner tube, reducing the rebound amplitude of the lowering inner tube, improving the rider's experience and comfort. Attached Figure Description

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

[0017] Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure;

[0018] Figure 3 yes Figure 2 A magnified view of part B in the middle section;

[0019] Figure 4 yes Figure 2 A magnified view of part C in the diagram.

[0020] The parts in the attached diagram are labeled as follows:

[0021] 1. Lifting inner tube; 2. Fixed outer tube; 3. Connecting tube; 4. Mounting platform; 5. First elastic element; 6. Second elastic element; 7. Bolt; 8. Bottom cover; 9. Rubber pad; 10. Limiting post; 11. Connector; 12. Dust cover; 13. Dust pad. Detailed Implementation

[0022] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0023] Example: Refer to Figures 1-4 As shown, a damped shock absorber seat tube includes:

[0024] The inner tube 1 is a lifting tube and the outer tube 2 is a fixed tube. The upper end of the lifting tube 1 is used to install the saddle, and the lower end extends into the fixed outer tube 2. The lifting tube 1 can slide axially relative to the fixed outer tube 2.

[0025] A connecting pipe 3 is provided at the lower part of the lifting inner tube 1, and a mounting platform 4 is provided at the lower part of the connecting pipe 3. A first elastic element 5 is provided at the upper part of the mounting platform 4, and a second elastic element 6 is provided at the lower part of the mounting platform 4. A limiting ring is fixedly embedded in the inner wall of the fixed outer tube 2. The first elastic element 5 is sleeved on the outer periphery of the connecting pipe 3 and is located between the mounting platform 4 and the limiting ring. A bottom cover 8 is provided at the bottom of the fixed outer tube 2, and the second elastic element 6 is located between the mounting platform 4 and the bottom cover 8.

[0026] Under normal riding conditions, the compression of the second elastic element 6 is one-quarter, while the first elastic element 5 is in its natural state.

[0027] When encountering a bumpy road surface, the second elastic element 6 is compressed again, with the compression amount of the second elastic element 6 being one-third. The first elastic element 5, located on the upper part of the mounting platform 4, falls down with the mounting platform 4. The upper part of the first elastic element 5 separates from the limiting ring. Then, the second elastic element 6 restores its deformation. The second elastic element 6 pushes the first elastic element 5 upward through the mounting platform 4. After the first elastic element 5 contacts the limiting ring, the limiting ring will buffer the mounting platform 4 through the first elastic element 5, thereby buffering the lifting inner tube 1 and reducing the rebound amplitude of the lifting inner tube 1.

[0028] Furthermore, referring to Figure 4 As shown, a rubber pad 9 is provided on the upper part of the first elastic element 5, and the rubber pad 9 is sleeved on the outer periphery of the connecting tube 3. The purpose of the rubber pad 9 is to prevent friction from occurring during the contact between the first elastic element 5 and the limiting ring, which would affect the service life of the seat tube.

[0029] In addition, a limiting post 10 is provided at the bottom of the fixed outer tube 2, and the second elastic member 6 is sleeved on the outer periphery of the limiting post 10.

[0030] When encountering significant bumps, the limiting post 10 is designed to limit the compression of the second limiting component, preventing the lifting inner tube 1 from experiencing large downward amplitude.

[0031] It should be noted that both the first elastic element 5 and the second elastic element 6 are springs.

[0032] Furthermore, referring to Figure 3 As shown, the mounting platform 4 is connected to the lower part of the connecting pipe 3 by bolts 7. The upper part of the connecting pipe 3 is provided with a connector 11, which is threadedly connected to the lower part of the lifting inner pipe 1. The connector 11 and the connecting pipe 3 are connected by bolts 7. This design can improve the stability of the assembly structure.

[0033] A dust cover 12 is provided on the upper part of the fixed outer tube 2, and a dust cover 13 is provided between the dust cover 12 and the lifting inner tube 1 to prevent dust from entering the fixed outer tube 2.

[0034] The working principle of this invention is as follows:

[0035] Under normal riding conditions, the compression of the second elastic element 6 is one-quarter, while the first elastic element 5 is in its natural state.

[0036] When encountering a bumpy road surface, the second elastic element 6 is compressed again, with the compression amount of the second elastic element 6 being one-third. The first elastic element 5, located on the upper part of the mounting platform 4, falls down with the mounting platform 4. The upper part of the first elastic element 5 separates from the limiting ring. Then, the second elastic element 6 restores its deformation. The second elastic element 6 pushes the first elastic element 5 upward through the mounting platform 4. After the first elastic element 5 contacts the limiting ring, the limiting ring will buffer the mounting platform 4 through the first elastic element 5, thereby buffering the lifting inner tube 1 and reducing the rebound amplitude of the lifting inner tube 1.

[0037] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship described in the embodiments and shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A damped shock absorber seat tube, the seat tube comprising: A lifting inner tube and a fixed outer tube, wherein the upper end of the lifting inner tube is used to install a saddle, and the lower end extends into the fixed outer tube, and the lifting inner tube can slide axially relative to the fixed outer tube; characterized in that: A connecting pipe is provided at the lower part of the lifting inner tube, and a mounting platform is provided at the lower part of the connecting pipe. A first elastic element is provided at the upper part of the mounting platform, and a second elastic element is provided at the lower part of the mounting platform. A limiting ring is embedded in the inner wall of the fixed outer tube. The first elastic element is sleeved on the outer periphery of the connecting pipe and is located between the mounting platform and the limiting ring. A bottom cover is provided at the bottom of the fixed outer tube, and the second elastic element is located between the mounting platform and the bottom cover.

2. The damped shock absorber seat tube according to claim 1, characterized in that: A rubber pad is provided on the upper part of the first elastic element, and the rubber pad is sleeved on the outer periphery of the connecting pipe.

3. A damped shock absorber seat tube according to claim 2, characterized in that: A limiting post is provided at the bottom of the fixed outer tube, and a second elastic element is sleeved on the outer periphery of the limiting post.

4. A damped shock absorber seat tube according to claim 3, characterized in that: Both the first and second elastic elements are configured as springs.

5. A damped shock absorber seat tube according to claim 4, characterized in that: The mounting platform is connected to the lower part of the connecting pipe by bolts. The upper part of the connecting pipe is provided with a connector, which is threaded to the lower part of the lifting inner pipe. The connector and the connecting pipe are connected by bolts.

6. A damped shock absorber seat tube according to claim 5, characterized in that: A dust cover is provided on the upper part of the fixed outer tube, and a dust pad is provided between the dust cover and the lifting inner tube.

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