CN216371946U

CN216371946U - Portable multifunctional middle shaft sleeve of bicycle

Info

Publication number: CN216371946U
Application number: CN202123267644.1U
Authority: CN
Inventors: 不公告发明人
Original assignee: Taifengkuang Guangzhou Precision Products Co ltd
Current assignee: Taifengkuang Guangzhou Precision Products Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-04-26
Anticipated expiration: 2031-12-24

Abstract

The utility model discloses a portable multifunctional bicycle middle shaft sleeve which needs to work in cooperation with a hollow middle shaft wrench and can be used for dismounting a square hole middle shaft or a small spline middle shaft and dismounting an octagonal cover of a 1-inch head tube bowl group.

Description

Portable multifunctional middle shaft sleeve of bicycle

Technical Field

The utility model relates to a bicycle middle shaft sleeve tool, in particular to a portable bicycle middle shaft sleeve tool.

Background

The middle shaft of the existing bicycle has various specifications, a high-end bicycle generally uses a hollow middle shaft, the matched hollow middle shaft is diversified, the middle shaft is most light and convenient at present and is made of sheet aluminum alloy, and the middle shaft is light, thin and easy to carry, but many lagging areas have no accessories of the hollow middle shaft, and the middle shaft is a place which is relatively headache for long-distance riding; the utility model provides a travel bicycle, leisure bicycle, climbing bicycle, ancient bicycle, well low-end bicycle to and old-fashioned bicycle etc. use still square hole axis and little spline axis of most using, these two kinds of axis common characteristics all use 20 tooth well axle sleeve to load and unload, and this kind of well axle sleeve generally needs supporting 24mm or bigger spanner to use, and it is very inconvenient to go out to carry. In addition, the ancient bicycles have a popular trend in recent years, the ancient bicycles and the old bicycles often use 1-inch-sized front forks with tooth head tubes, the gland of the adaptive bowl group of the head tubes is generally octagonal, a 32mm octagonal wrench is needed for fixing, the number of the wrenches on the market is very few, people can fix the wrenches with general wrenches, and the gland of the bowl group is easy to be indented or embossed compared with a special octagonal wrench, and only one quarter of contact surfaces is reserved between the wrenches because only two sides of the wrenches are fixed.

Disclosure of Invention

In order to solve the problems, the utility model provides a portable multifunctional bicycle middle shaft sleeve, and aims to provide a portable 20-tooth middle shaft sleeve matched with a hollow middle shaft wrench for use, wherein a square hole middle shaft and a small spline middle shaft can be disassembled and assembled, and a 32mm octagonal wrench is integrated in the portable 20-tooth middle shaft sleeve, so that the portable 20-tooth middle shaft sleeve is suitable for assembling and disassembling an octagonal cover of a 1-inch head tube bowl group, and the bowl group cover is protected as well as possible.

In order to achieve the purpose, the utility model provides a portable multifunctional bicycle middle shaft sleeve which is realized by the following steps: one end is a large spline main body, which is suitable for being fixed by a hollow center shaft wrench, the other end is a 20-tooth center shaft sleeve, which is matched with a square hole center shaft and a small spline center shaft, the square hole center shaft or the small spline center shaft can be disassembled and assembled by matching with the hollow center shaft wrench, a 32mm octagonal sleeve is arranged inside the large spline main body, which is suitable for the assembly and disassembly of an octagonal cover of a 1-inch head tube bowl group, and the effect of weight reduction design is achieved.

Because the utility model adopts a multifunctional light-weight integrated structure, the following beneficial effects can be obtained: the wrench is light and easy to carry, and the wrench can meet the requirements of dismounting the hollow middle shaft, the square hole middle shaft and the small spline middle shaft by adding the wrench to the hollow middle shaft wrench, and is very useful for long-distance riding or motorcade traveling.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic backside view of the present invention;

in the figure, (1) a large spline main body, (2) a 20-tooth middle shaft sleeve, (3) a large hole, (4) a small flange, and (5) an octagonal sleeve.

Detailed Description

As shown in figure 1, one end of the spline shaft is a large spline main body (1), the large spline main body (1) is provided with a small flange (4), the other end of the spline shaft is a 20-tooth middle shaft sleeve (2), and a large hole (3) is formed in the 20-tooth middle shaft sleeve (2), so that a larger and thicker small spline middle shaft core can conveniently pass through the hole, and the weight is reduced. When the hollow middle shaft wrench is used for dismounting the square hole middle shaft or the small spline middle shaft, the 20-tooth middle shaft sleeve (2) is clamped into the 20-tooth key position corresponding to the square hole middle shaft or the small spline middle shaft, the hollow middle shaft wrench is sleeved on the large spline main body (1), the small flange (4) plays a role in limiting the hollow middle shaft wrench and preventing the hollow middle shaft wrench from sliding off, and the hollow middle shaft wrench in the wrestling process can be used for dismounting the square hole middle shaft or the small spline middle shaft.

As shown in figure 2, the large spline main body (1) is internally provided with an octagonal sleeve (5) which is suitable for assembling and disassembling an octagonal cover of a 1-inch head pipe bowl group, and when the large spline main body is used, the large spline main body is matched with a hollow middle shaft wrench to work together.

Essential technical features of the utility model common to the closest prior art in terms of shape, construction and combination thereof are: a 20-tooth middle shaft sleeve of a square hole middle shaft or a small spline middle shaft.

The technical features of the utility model, in terms of shape, construction and combination thereof, which differ from the closest prior art are: the multifunctional 20-tooth middle shaft sleeve is matched with a hollow middle shaft wrench for use.

The working principle and the working process of the utility model are as follows: one end of the utility model is a large spline main body (1), the large spline main body (1) is provided with a small flange (4), the other end is a 20-tooth middle shaft sleeve (2), and the inside of the 20-tooth middle shaft sleeve (2) is provided with a large hole (3), so that a larger and thicker small spline middle shaft core can conveniently pass through the large spline middle shaft sleeve, and meanwhile, the effect of reducing weight is achieved. When the hollow middle shaft wrench is used for dismounting the square hole middle shaft or the small spline middle shaft, the 20-tooth middle shaft sleeve (2) is clamped into the 20-tooth key position corresponding to the square hole middle shaft or the small spline middle shaft, the hollow middle shaft wrench is sleeved on the large spline main body (1), the small flange (4) plays a role in limiting the hollow middle shaft wrench and preventing the hollow middle shaft wrench from sliding off, and the hollow middle shaft wrench in the wrestling process can be used for dismounting the square hole middle shaft or the small spline middle shaft. The octagonal sleeve (5) is arranged inside the large spline main body (1), is suitable for assembling and disassembling an octagonal cover of a 1-inch head pipe bowl group, and needs to be matched with a hollow middle shaft wrench to work together when in use.

The best scheme for realizing the utility model is as follows: the utility model is made of hard metal materials, and the existing industrial equipment is utilized for batch production, thereby achieving the practical value and the economic value of the utility model.

Claims

1. The utility model provides a portable multi-functional bicycle well axle sleeve, contains big spline main part (1), 20 tooth well axle sleeves (2), big hole (3), little flange (4), eight corner sleeve (5), its characterized in that, big spline main part (1) has little flange (4), and the inside of big spline main part (1) is eight corner sleeve (5), and the inside of 20 tooth well axle sleeves (2) is big hole (3).

2. The portable multifunctional bicycle center shaft sleeve as claimed in claim 1, wherein the 20-tooth center shaft sleeve (2) is suitable for dismounting a square hole center shaft or a small spline center shaft, a hollow center shaft wrench is required to be sleeved on the large spline main body (1) to work together to dismount the square hole center shaft or the small spline center shaft, and the small flange (4) plays a role in limiting and preventing sliding when the hollow center shaft wrench works.

3. The portable multifunctional bicycle center shaft sleeve as claimed in claim 1, wherein the large spline body (1) is internally provided with an octagonal sleeve (5) which is suitable for assembling and disassembling an octagonal cover of a 1-inch head tube bowl group and is matched with a hollow center shaft wrench to work together when in use.