CN219883618U - Bicycle hub - Google Patents

Abstract

The utility model provides a bicycle hub, which relates to the field of bicycles and comprises a shell, a bearing assembly and a chain wheel connector, wherein a stepped hole is formed in the shell along the length direction, a plurality of fixing holes for fixing spokes are formed in two ends of the shell, a plurality of positioning grooves are formed in the inner side wall of one side of the stepped hole, a rotating shaft assembly comprises a one-way clutch, a plurality of raised strips are arranged outside the one-way clutch and are arranged in the positioning grooves, the chain wheel connector comprises a sleeve, a connecting gear is arranged on one side of the sleeve, the other side of the sleeve is connected with the one-way clutch, and the one-way clutch is arranged in the positioning grooves. According to the utility model, the inner meshing gear is arranged in the axle hole of the chain wheel, and the connecting gear of the connecting sleeve is sleeved through the inner meshing gear, so that compared with the mode that the chain wheel connecting shaft is connected with the flower drum through the axle, the direct power connection of the chain wheel and the flower drum is realized, the connection assembly and the disassembly are easier, and the internal structure of the flower drum is not easy to destroy.

Description

Bicycle hub

Technical Field

The utility model relates to the field of bicycles, in particular to a bicycle hub.

Background

Bicycles, also known as bicycles or scooters, are typically two-wheeled small land vehicles. After a person gets on the bicycle, pedal the pedal as power, be green's vehicle, general bicycle rear wheel passes through the flower drum and is connected with the sprocket, thereby power passes to the rotation of flower drum through the sprocket subassembly and rotates the realization rear wheel, current sprocket direct cover is established and is fastened on the epaxial of installation flower drum, the rotation through the rotation of axle drives the rotation of flower drum, the equipment of using this kind of flower drum to the sprocket is very big with the dismantlement degree of difficulty, the installation easily destroys flower drum inner structure, causes the flower drum damage.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a bicycle hub, and aims to solve the problems that the assembly and disassembly difficulties are high and the internal structure of the hub is easy to destroy due to the connection mode of a chain wheel and the hub in the market.

The utility model is realized in the following way: the utility model provides a bicycle hub, includes casing, bearing assembly and sprocket connector, it has the shoulder hole to open along length direction in the casing the both ends of casing are opened there are a plurality of fixed orifices that are used for fixed spoke, one side inside wall of shoulder hole is opened there is a plurality of constant head tank, bearing assembly includes one-way clutch, the one-way clutch outside sets up a plurality of sand grip, the sand grip is installed the constant head tank, the sprocket connector includes the sleeve, telescopic one side sets up connecting gear, sleeve opposite side erection joint one-way clutch.

Further, a transmission gear is arranged on the outer side of one end, far away from the sleeve, of the shell, and transmission threads are arranged on the inner side of the shell.

Further, one side of the shell, which is close to the transmission gear, is further provided with three arc-shaped protruding parts, the arc-shaped protruding parts are provided with fixing holes, and a yielding gap is formed between the arc-shaped protruding parts.

Further, the number of the positioning grooves is X, the number of the raised strips is Y, and X=Y is more than or equal to 4 and less than or equal to 6.

Further, the one-way clutch is a sprung wedge type one-way clutch.

A bicycle comprises the bicycle hub.

The beneficial effects of the utility model are as follows:

the utility model relates to a bicycle hub which is simple in structure and reasonable and ingenious in design, and comprises a shell, a bearing assembly and a chain wheel connector, wherein a stepped hole is formed in the shell along the length direction, a plurality of fixing holes for fixing spokes are formed in two ends of the shell, a plurality of positioning grooves are formed in the inner side wall of one side of each stepped hole, the bearing assembly comprises a one-way clutch, a plurality of raised strips are arranged outside the one-way clutch and are arranged on the positioning grooves, the chain wheel connector comprises a sleeve, a connecting gear is arranged on one side of the sleeve, the other side of the sleeve is connected with the one-way clutch, and the one-way clutch is arranged on the positioning grooves. According to the utility model, the inner meshing gear is arranged in the axle hole of the chain wheel, and the inner meshing gear is meshed with the connecting gear of the connecting sleeve, so that compared with the mode that the chain wheel connecting shaft is connected with the flower drum through the axle, the direct power connection of the chain wheel and the flower drum is realized, the connection assembly and the disassembly are easier, and the internal structure of the flower drum is not easy to destroy.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a bicycle hub according to the present utility model;

FIG. 2 is an exploded view of the bicycle hub of the present utility model;

fig. 3 is a schematic diagram of a casing structure of a bicycle hub of the present utility model.

Reference numerals:

10. a housing; 101. a positioning groove; 102. a transmission gear; 103. an internal thread; 104. a fixing hole; 105. a relief notch;

20. a one-way clutch; 201. a convex strip;

30. a sleeve; 301. and a connecting gear.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Referring to fig. 1-2, the present utility model provides a bicycle hub, which comprises a housing 10, a bearing assembly and a sprocket connector, wherein a stepped hole is formed in the housing 10 along the length direction, a plurality of fixing holes 104 for fixing spokes are formed at two ends of the housing 10, the stepped hole is adopted to facilitate the one-sided installation of a one-way clutch 20, a transmission gear 102 is arranged at the outer side of one end of the housing 10 far away from a sleeve 30, and a transmission thread is arranged at the inner side. Specifically, the brake disc is installed on one side of the shell 10 with transmission threads, the rotation of the shell drives the brake disc to rotate, and the built-in transmission threads further fix the brake disc on the shell 10.

Further, the casing 10 is close to one side of drive gear 102 and further sets up three arc bulge, and the arc bulge is opened there is fixed orifices 104, constitutes between the arc bulge and gives up the breach 105, and arc bulge makes things convenient for bicycle spoke one end to install at fixed orifices 104, gives up breach 105 and provides the space of dodging, makes things convenient for operating personnel to install and remove the brake disc.

Referring to fig. 2-3, a plurality of positioning slots 101 are formed in an inner side wall of one side of the stepped hole, the bearing assembly includes a one-way clutch 20, a plurality of protruding strips 201 are disposed outside the one-way clutch 20 and are installed in the positioning slots 101, wherein the number of the positioning slots 101 is X, the number of the protruding strips 201 is Y, and x=y=6, preferably, in this embodiment, x=y=6, and the one-way clutch 20 is fastened to the housing 10 through cooperation of the protruding strips 201 and the positioning slots 101, that is, rotation of the one-way clutch 20 can drive rotation of the housing 10. Further, the one-way clutch 20 is a wedge-shaped one-way clutch 20 with a spring, and compared with the traditional ratchet and pawl structure, the wedge-shaped one-way clutch 20 with the spring can avoid power loss caused by damage of pawls, and the service life of the hub is prolonged.

Referring to fig. 1-2, the sprocket connector includes a sleeve 30, a connecting gear 301 is disposed on one side of the sleeve 30, a one-way clutch 20 is connected to the other side of the sleeve 30, specifically, an inner engaging tooth is disposed in a central shaft hole of the sprocket, the inner engaging tooth of the sprocket is sleeved on the connecting gear 301 during installation connection, rotation of the sprocket is realized through engagement of the tooth of the connecting gear 301 and the inner engaging tooth of the central shaft hole of the sprocket to drive rotation of the sleeve 30, the sleeve 30 drives rotation of the housing 10 through the one-way clutch 20, power is directly transmitted, and meanwhile, the matching mode of the gears is convenient to disassemble and assemble, so that damage of the internal structure of the hub in the disassembly process is avoided.

The utility model provides a bicycle, bicycle includes wheel, front fork, rear fork, frame and installs at above-mentioned flower-drum of tire, and flower-drum simple structure, sprocket direct and flower-drum are connected, and sprocket direct connection flower-drum drives its rotation, and power transmission is more direct, and can avoid the installation or dismantle and lead to the inside impaired of flower-drum.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (6)

1. The utility model provides a bicycle hub, its characterized in that, includes casing, bearing assembly and sprocket connector, it has the shoulder hole to open along length direction in the casing the both ends of casing are opened there are a plurality of fixed orifices that are used for fixed spoke, one side inside wall of shoulder hole is opened there is a plurality of constant head tank, bearing assembly includes one-way clutch, the one-way clutch outside sets up a plurality of sand grip, the sand grip is installed the constant head tank, the sprocket connector includes the sleeve, telescopic one side sets up connecting gear, the sleeve opposite side is connected one-way clutch.

2. The bicycle hub according to claim 1, wherein: the shell is far away from the outside of one end of the sleeve is provided with a transmission gear, and the inside is provided with transmission threads.

3. The bicycle hub according to claim 2, wherein: the shell is close to one side of the transmission gear and is further provided with three arc-shaped protruding parts, the arc-shaped protruding parts are provided with fixing holes, and a yielding gap is formed between the arc-shaped protruding parts.

4. The bicycle hub according to claim 1, wherein: the number of the positioning grooves is X, the number of the raised strips is Y, and X=Y is more than or equal to 4 and less than or equal to 6.

5. The bicycle hub according to claim 1, wherein: the one-way clutch is a wedge-type one-way clutch with a spring.

6. A bicycle, characterized in that: the bicycle comprising a bicycle hub according to any one of claims 1 to 5.