CN219007488U

CN219007488U - Bicycle hub with high-strength pawl structure

Info

Publication number: CN219007488U
Application number: CN202223525907.9U
Authority: CN
Inventors: 王春涛
Original assignee: Suzhou Nuojima Metal Products Co ltd
Current assignee: Suzhou Nuojima Metal Products Co ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-05-12
Anticipated expiration: 2032-12-28

Abstract

The utility model discloses a bicycle hub with a high-strength pawl structure, which comprises a pawl and a driving body, wherein the pawl is connected with the driving body through a rotating shaft penetrating through the middle, and a reinforcing structure is arranged between the pawl and the driving body. The reinforcing structure comprises pawl teeth and check keys, wherein the pawl teeth are matched with the check keys. Through the mode, the bicycle hub with the high-strength pawl structure adopts the reinforcing structure, so that the strength of the original pawl structure can be increased, and the traction force is improved.

Description

Bicycle hub with high-strength pawl structure

Technical Field

The utility model relates to the field of bicycles, in particular to a bicycle hub with a high-strength pawl structure.

Background

Wheels generally comprise a rim, a hub and spokes ensuring a mechanical connection between the rim and the hub.

The hub generally includes a hub body configured to rotate about an axis and shaped to receive at least two layers of spokes disposed on either side of a hub midplane.

The existing small-size hub has the defects that the internal structure is compact due to the small size, and the strength of a pawl part is low, so that the traction force is reduced.

Disclosure of Invention

The utility model mainly solves the technical problem of providing the bicycle hub with the high-strength pawl structure, which can increase the strength of the original pawl structure.

In order to solve the technical problems, the utility model adopts a technical scheme that: the utility model provides a bicycle hub with high strength pawl structure, includes pawl and drive body, the pawl with the drive body is connected through the pivot that runs through in the middle, the pawl with be equipped with reinforced structure between the drive body.

The reinforcing structure comprises pawl teeth and check keys, wherein the pawl teeth are matched with the check keys.

In a preferred embodiment of the present utility model, the pawl tooth is cylindrical, the left side is a first chamfer side, the right side is a second chamfer side, and the first chamfer side and the second chamfer side are connected through an arc side.

In a preferred embodiment of the present utility model, the check key is installed in an installation groove in the driving body, the check key is rotationally connected with the installation groove, an arc section and a abdication section are arranged at the bottom of the check key, and the arc section is connected with the abdication section.

In a preferred embodiment of the present utility model, a supporting sleeve is installed between the pawl and the rotating shaft, and the rotating shaft penetrates through the first bearing, the second bearing and the third bearing from left to right.

In a preferred embodiment of the present utility model, the first bearing is mounted in a first bearing groove on the left side of the pawl, the second bearing and the third bearing are both mounted in a second bearing groove on the right side of the driving body, and a spacer is disposed between the second bearing and the third bearing.

In a preferred embodiment of the utility model, a spring is mounted on the inner wall of the driving body, which is attached to the pawl, through a groove.

The beneficial effects of the utility model are as follows: the bicycle hub with the high-strength pawl structure adopts the reinforcing structure, so that the strength of the original pawl structure can be increased, and the traction force is improved.

Drawings

FIG. 1 is a cross-sectional view of a bicycle hub with a high strength pawl structure.

Fig. 2 is an exploded view of a bicycle hub with a high strength pawl structure.

FIG. 3 is a schematic cross-sectional view of a bicycle hub pawl tooth with a high strength pawl structure in operation with a check key.

The components in the drawings are marked as follows: 1. a pawl; 2. a driving body; 3. pawl teeth; 4. a check key; 5. a first chamfer side; 6. a second chamfer side; 7. an arc edge; 8. a circular arc section; 9. a yielding section; 10. a support sleeve; 11. a first bearing; 12. a second bearing; 13. a third bearing; 14. a gasket; 15. a spring; 16. and a mounting groove.

Detailed Description

The following detailed description of the preferred embodiments of the utility model is provided to enable those skilled in the art to more readily understand the advantages and features of the utility model and to make a clear and concise definition of the scope of the utility model.

According to fig. 1 to 3, a bicycle hub with high-strength pawl structure comprises a pawl 1 and a driving body 2, wherein the pawl 1 is connected with the driving body 2 through a rotating shaft penetrating through the middle, and a reinforcing structure is arranged between the pawl 1 and the driving body 2, so that the strength of the original pawl 1 structure can be increased, and the traction force is improved. The structural strength of the pawl 1 is 50% higher than that of the common structure.

The reinforcing structure comprises a pawl tooth 3 and a check key 4, wherein the pawl tooth 3 is matched with the check key 4.

The pawl teeth 3 are cylindrical, which reduces the bulk of the mechanism of the pawl 1 and also increases the length of the non-return key 4, resulting in a stronger traction force.

The left side of the ratchet tooth is provided with a first chamfering side edge 5, the right side of the ratchet tooth is provided with a second chamfering side edge 6, the first chamfering side edge 5 is connected with the second chamfering side edge 6 through an arc-shaped edge 7, and the inclination angle of the first chamfering side edge 5 is higher than that of the second chamfering side edge 6, so that the ratchet tooth 3 is more firmly matched with the check key 4.

The check key 4 is installed in the mounting groove 16 in the driving body 2, the check key 4 with swivelling joint between the mounting groove 16, the check key 4 bottom is equipped with circular arc section 8 and gives way section 9, circular arc section 8 with it is connected to give way section 9, works as when pawl 1 rotates, arc limit 7 can follow circular arc section 8 removes, thereby move on schedule to give way section 9, the check key 4 can by pawl tooth 3 jack-in the mounting groove 16, wait until after first chamfer limit passes through, the check key 4 falls out, circular arc section 8 with second chamfer limit 6 pastes.

The supporting shaft sleeve 10 is installed between the pawl 1 and the rotating shaft, the rotating shaft penetrates through the first bearing 11, the second bearing 12 and the third bearing 13 once from left to right, and the first bearing 11, the second bearing 12 and the third bearing 13 enable rotation to be smoother.

The first bearing 11 is installed in a first bearing 11 groove on the left side of the pawl 1, the second bearing 12 and the third bearing 13 are both installed in a second bearing 12 groove on the right side of the driving body 2, a gasket 14 is arranged between the second bearing 12 and the third bearing 13, and the gasket 14 enables the second bearing 12 and the third bearing 13 not to generate interference due to close contact when rotating.

A spring 15 is arranged on the inner wall of the driving body 2, which is attached to the pawl 1, through a groove.

Compared with the prior art, the bicycle hub with the high-strength pawl structure has the advantages that the strength of the original pawl structure can be increased by adopting the reinforcing structure, so that the traction force is improved.

In the description of the present utility model, it should be noted that, all parts are common standard components or components known to those skilled in the art, and the structures and principles thereof are all known by technical manuals or known by conventional test methods, and the terms "upper", "lower", "left", "right", "inner", "outer", etc. refer to the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships in which the inventive product is conventionally put in use, which are merely for convenience of describing the present utility model and simplifying the description, rather than indicating or suggesting that the apparatus or element referred to must have a specific direction, be configured and operated in a specific direction, and therefore should not be construed as limiting the present utility model.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. The bicycle hub with the high-strength pawl structure comprises a pawl and a driving body, wherein the pawl is connected with the driving body through a rotating shaft penetrating through the middle of the driving body;

2. The bicycle hub with a high strength pawl structure according to claim 1, wherein the pawl teeth are cylindrical with a first chamfered side on the left and a second chamfered side on the right, the first and second chamfered sides being connected by an arcuate edge.

3. The bicycle hub with the high-strength pawl structure according to claim 2, wherein the check key is installed in an installation groove in the driving body, the check key is rotatably connected with the installation groove, an arc section and a yielding section are arranged at the bottom of the check key, and the arc section is connected with the yielding section.

4. The bicycle hub with high strength pawl structure according to claim 1, wherein a support sleeve is mounted between the pawl and the rotating shaft, and the rotating shaft passes through the first bearing, the second bearing and the third bearing once from left to right.

5. The bicycle drum with high strength pawl structure according to claim 4, wherein said first bearing is mounted in a first bearing groove on the left side of said pawl, said second bearing and said third bearing are both mounted in a second bearing groove on the right side of said drive body, and a spacer is provided between said second bearing and said third bearing.

6. The bicycle hub with high-strength pawl structure according to claim 1, wherein springs are installed on inner walls of the driving body, which are attached to the pawls, through grooves.