Split type bicycle ratchet wheel structure

Abstract

The utility model discloses a split type bicycle ratchet wheel structure which comprises a ratchet wheel tail seat, an inner thread is arranged on the inner side of the ratchet wheel tail seat, a connecting section is arranged at one end of a ratchet wheel shell, an outer thread matched with the inner thread is arranged on the outer side of the connecting section, a plurality of pawls are arranged, and the pawls are connected with the ratchet wheel tail seat. According to the bicycle ratchet wheel structure, the ratchet wheel tail seat and the ratchet wheel shell which are split are adopted, a traditional integrated structure is designed into a split structure, the ratchet wheel tail seat and the ratchet wheel shell can be independently formed and machined, the forging difficulty is reduced, machining is simple, the machining efficiency is improved, and the bicycle ratchet wheel structure is suitable for large-scale popularization and application. The processing period is shortened, the production cost is further reduced, the ratchet tailstock and the ratchet shell can be made of different materials, the ratchet tailstock and the ratchet shell made of different materials can be selected to be combined according to the types of bicycle hubs or different requirements, and bicycle ratchet structures made of different materials are combined and assembled.

Description

Technical Field

[0001] This utility model belongs to the field of bicycle ratchet technology, specifically relating to a split-type bicycle ratchet structure. Background Technology

[0002] The bicycle ratchet is a core component of the bicycle's rear wheel drive system. Its function is to achieve unidirectional transmission, ensuring that the bicycle can only be ridden forward and not backward. The bicycle ratchet mechanism consists of a ratchet, bearings, gears, and a chain. The ratchet is the key component, consisting of a set of gears and protruding ratchet teeth. It can rotate in one direction while being blocked in the other.

[0003] Existing bicycle ratchet structures are mostly one-piece structures. One-piece bicycle ratchet structures are mostly made by forging and turning the bicycle model. Forging is difficult, costly and time-consuming. With one-piece bicycle ratchet structures, it is not possible to freely choose different materials for bicycle ratchets for different types of bicycle hubs. Therefore, we propose a split bicycle ratchet structure. Utility Model Content

[0004] The purpose of this invention is to provide a split-type bicycle ratchet structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a split-type bicycle ratchet structure, comprising,

[0006] A ratchet tailstock, wherein the inner side of the ratchet tailstock is provided with an internal thread;

[0007] A ratchet housing, one end of which is provided with a connecting section, and the outer side of the connecting section is provided with an external thread that is adapted to the internal thread;

[0008] A ratchet pawl is provided, and the ratchet pawls are arranged in a ring around the outer periphery of the ratchet tail seat.

[0009] Preferably, a first bevel angle is provided on the inner side of the ratchet tailstock facing the ratchet housing, and a second bevel angle is provided at the connection between the ratchet housing and the connecting section, wherein the first bevel angle and the second bevel angle are adapted to each other.

[0010] Preferably, the outer periphery of the ratchet tailstock is provided with a plurality of equally spaced pawl grooves, and the pawls are installed in the pawl grooves.

[0011] Preferably, the ratchet tailstock is made of aluminum alloy, titanium alloy or alloy steel.

[0012] Preferably, the ratchet housing is made of aluminum alloy, titanium alloy or alloy steel.

[0013] Preferably, both the ratchet tailstock and the ratchet housing are formed by forging and milling.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The bicycle ratchet structure in this utility model adopts a split ratchet tailstock and ratchet housing, which is a split structure instead of a traditional one-piece structure. The ratchet tailstock and ratchet housing can be formed and processed separately, which reduces the forging difficulty, simplifies the processing, shortens the processing cycle, and thus reduces the production cost.

[0016] 2. The ratchet tailstock and ratchet housing of this utility model can be made of different materials. Depending on the type of bicycle hub or different needs, different materials of ratchet tailstock and ratchet housing can be selected for combination, which is highly selective and realizes the combination and assembly of bicycle ratchet structures of different materials. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the ratchet tailstock of this utility model;

[0019] Figure 3 This is a cross-sectional view of the ratchet tailstock of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the ratchet housing of this utility model;

[0021] Figure 5 This is a side view of the ratchet housing of this utility model.

[0022] In the diagram: 1. Ratchet tailstock; 101. Internal thread; 102. First bevel angle; 103. Pad groove; 2. Ratchet housing; 201. Connecting section; 202. External thread; 203. Second bevel angle; 3. Pad. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-5 The present invention provides a split-type bicycle ratchet structure, comprising:

[0025] Ratchet tail seat 1, the inner side of ratchet tail seat 1 is provided with internal thread 101, and the inner side of ratchet tail seat 1 facing ratchet housing 2 is provided with first slope angle 102.

[0026] Ratchet housing 2, one end of ratchet housing 2 is provided with connecting section 201, the outer side of connecting section 201 is provided with external thread 202 adapted to internal thread 101, the connection between ratchet housing 2 and connecting section 201 is provided with second bevel angle 203, the first bevel angle 102 and the second bevel angle 203 are adapted to each other.

[0027] The ratchet 3 is provided in several pieces. The ratchet 3 is arranged in a ring around the outer periphery of the ratchet tail seat 1. The outer periphery of the ratchet tail seat 1 has several ratchet grooves 103 that are evenly distributed. The ratchet 3 is installed in the ratchet grooves 103.

[0028] The bicycle ratchet structure in this utility model adopts a split ratchet tailstock 1 and ratchet shell 2, which is a split structure instead of a traditional one-piece structure. The ratchet tailstock 1 and ratchet shell 2 can be formed and processed separately, which reduces the forging difficulty, simplifies the processing, shortens the processing cycle, and thus reduces the production cost.

[0029] In this invention, after the ratchet tail seat 1 and the ratchet housing 2 are connected by threads, they can be welded and fixed at the connection between the ratchet tail seat 1 and the ratchet housing 2 to prevent the ratchet tail seat 1 and the ratchet housing 2 from becoming loose and to improve the connection stability.

[0030] In this embodiment, the ratchet tailstock 1 is a ratchet tailstock made of aluminum alloy, titanium alloy or alloy steel, and the ratchet housing 2 is a ratchet housing made of aluminum alloy, titanium alloy or alloy steel.

[0031] The ratchet tailstock 1 and ratchet housing 2 of this utility model can be made of different materials. Depending on the type of bicycle hub or different needs, ratchet tailstock 1 and ratchet housing 2 of different materials can be selected for combination, which is highly selective and realizes the combination and assembly of bicycle ratchet structures of different materials.

[0032] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A split-type bicycle ratchet structure, characterized in that, include, Ratchet tail seat (1), the inner side of which is provided with internal thread (101). Ratchet housing (2), one end of which is provided with a connecting section (201), and the outer side of the connecting section (201) is provided with an external thread (202) that is compatible with the internal thread (101). A pawl (3) is provided, and the pawls (3) are arranged in a ring around the outer periphery of the ratchet tail seat (1).

2. The split-type bicycle ratchet structure according to claim 1, characterized in that: A first slope angle (102) is provided on the inner side of the ratchet tail seat (1) facing the ratchet housing (2), and a second slope angle (203) is provided at the connection between the ratchet housing (2) and the connecting section (201). The first slope angle (102) and the second slope angle (203) are compatible.

3. The split-type bicycle ratchet structure according to claim 1, characterized in that: The outer periphery of the ratchet tailstock (1) is provided with a number of equally spaced pawl grooves (103), and the pawl (3) is installed in the pawl grooves (103).

4. The split-type bicycle ratchet structure according to claim 1, characterized in that: The ratchet tailstock (1) is made of aluminum alloy, titanium alloy or alloy steel.

5. A split-type bicycle ratchet structure according to claim 1, characterized in that: The ratchet housing (2) is made of aluminum alloy, titanium alloy or alloy steel.

6. A split-type bicycle ratchet structure according to claim 1, characterized in that: Both the ratchet tailstock (1) and the ratchet housing (2) are formed by forging and milling.

Images