阅读说明：本技术 一种刹把结构 (Brake crank structure ) 是由 陈俊豪 陈锭岸 于 2020-06-04 设计创作，主要内容包括：本发明公开了一种刹把结构,包括与车把紧密连接的锁紧结构,用于牵引刹车线的手柄,连接锁紧结构和手柄的连接件；所述锁紧结构包括用于使所述锁紧结构与车把连接时进行锁紧的外径膨胀部件；所述外径膨胀部件包括中空螺栓、第一锁紧件、第二锁紧件,所述第一锁紧件包括一个柱体本体、贯穿柱体本体的中空管道；所述第二锁紧件包括一个管体；所述连接件包括用于并连接手柄尾端的容置槽；在容置槽内设有联通第二锁紧件的通道；手柄连接在容置槽的侧壁上；中空螺栓从第二锁紧件的管体内穿过从而与第一锁紧件的中空管道连接。第一锁紧件多样化功能趋向,加大了消费者选择的灵活性。(The invention discloses a brake lever structure, which comprises a locking structure tightly connected with a handlebar, a handle used for drawing a brake cable, and a connecting piece for connecting the locking structure and the handle; the locking structure comprises an outer diameter expansion part used for locking when the locking structure is connected with a handlebar; the outer diameter expansion part comprises a hollow bolt, a first locking part and a second locking part, wherein the first locking part comprises a cylinder body and a hollow pipeline penetrating through the cylinder body; the second locking member comprises a tube body; the connecting piece comprises a containing groove used for being connected with the tail end of the handle; a channel communicated with the second locking piece is arranged in the accommodating groove; the handle is connected to the side wall of the containing groove; the hollow bolt penetrates through the tube body of the second locking piece so as to be connected with the hollow pipeline of the first locking piece. The first locking member has a diversified functional trend, and the flexibility of selection of consumers is increased.)

1. A brake lever structure comprises a locking structure tightly connected with a handlebar, a handle used for drawing a brake cable, and a connecting piece used for connecting the locking structure and the handle; the locking structure is characterized by comprising an outer diameter expansion part used for locking when the locking structure is connected with a handlebar; the outer diameter expansion part comprises a hollow bolt, a first locking part and a second locking part, wherein the first locking part comprises a cylinder body and a hollow pipeline penetrating through the cylinder body; the second locking member comprises a tube body; the connecting piece comprises a containing groove used for being connected with the tail end of the handle; a channel communicated with the second locking piece is arranged in the accommodating groove; the handle is connected to the side wall of the containing groove; the hollow bolt penetrates through the tube body of the second locking piece so as to be connected with the hollow pipeline of the first locking piece.

2. A lever structure according to claim 1 wherein the hollow bolt comprises a body, a head and a hollow conduit extending through the body and head.

3. A lever structure according to claim 2 wherein the first retaining member is provided with a receiving cavity on one or both sides and the component to be inserted is located in the receiving cavity.

4. The brake crank structure as claimed in claim 3, wherein the receiving cavity is cylindrical, the component to be placed in the receiving cavity is a combination of a base and an upper cover, the top of the upper cover has a curved surface, the curved surface has corrugations, the base is cylindrical, and the bottom of the cylindrical surface has a curved surface.

5. The brake crank structure as claimed in claim 3, wherein the receiving cavity is a rectangular parallelepiped, the component to be inserted in the receiving cavity is a combination of a base and an upper cover, the top of the upper cover has an arc surface, the arc surface has corrugations, the base is a rectangular cylinder, and the bottom of the rectangular cylinder has an arc surface.

6. The brake crank structure according to claim 3, wherein the receiving cavity is a cylindrical receiving cavity, the inner wall of the cylindrical receiving cavity has an inclined surface, the component to be inserted in the receiving cavity is a steel ball, the diameter of the upper opening of the cylindrical receiving cavity is larger than that of the steel ball, and the diameter of the lower opening of the cylindrical receiving cavity is smaller than that of the steel ball.

7. A lever structure according to claim 3 wherein the end of the bolt is provided with a frusto-conical tail.

8. A brake lever structure according to claim 1, wherein the second locking member is secured to one side of the channel of the connecting member.

9. A lever structure according to claim 1, wherein a side end of said first locking member is beveled and a side end of said second locking member is beveled.

Technical Field

The invention relates to a brake lever structure.

Background

The bicycle is used as a green travel tool, is visible everywhere in daily life, and a brake device of the bicycle, particularly a brake cable, becomes a common loss accessory.

The balance of the bicycle and the characteristics of the bicycle body and the bracket of the bicycle determine that the bicycle is easy to fall down when placed, and the brake lever is the most frequently-fallen part, so that the brake cable is the easily-damaged part.

At present, a plurality of brake wires select internal wiring, a plurality of handlebar base materials select straight pipes, and the tail ends of the straight pipes are also provided with bent pipes. This arrangement results in a high workload when the brake cable needs to be replaced, so that it is necessary to be able to replace the brake cable quickly.

Disclosure of Invention

The invention aims to solve the defects and provides a brake lever structure.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a brake lever structure comprises a locking structure tightly connected with a handlebar, a handle used for drawing a brake cable, and a connecting piece used for connecting the locking structure and the handle; the locking structure comprises an outer diameter expansion part used for locking when the locking structure is connected with a handlebar; the outer diameter expansion part comprises a hollow bolt, a first locking part and a second locking part, wherein the first locking part comprises a cylinder body and a hollow pipeline penetrating through the cylinder body; the second locking member comprises a tube body; the connecting piece comprises a containing groove used for being connected with the tail end of the handle; a channel communicated with the second locking piece is arranged in the accommodating groove; the handle is connected to the side wall of the containing groove; the hollow bolt penetrates through the tube body of the second locking piece so as to be connected with the hollow pipeline of the first locking piece.

An accommodating cavity is formed in one side or two sides of the first locking piece, and a part to be placed is arranged in the accommodating cavity;

the accommodating cavity is cylindrical, the part to be placed in the accommodating cavity is a combined body with a base and an upper cover, the top of the upper cover is provided with an arc surface, the arc surface is provided with corrugations, the base is a cylinder, and the bottom surface of the cylinder is provided with an arc surface.

The accommodating cavity is cuboid, the part to be placed in the accommodating cavity is a combined body with a base and an upper cover, the top of the upper cover is provided with an arc surface, the arc surface is provided with corrugations, the base is a cuboid column body, and the bottom surface of the cuboid column body is provided with an arc surface.

The containing cavity is a cylindrical containing cavity, the inner wall of the cylindrical containing cavity is provided with an oblique surface, the part to be placed in the containing cavity is a steel ball, the diameter of an upper opening of the cylindrical containing cavity is larger than that of the steel ball, and the diameter of a lower opening of the cylindrical containing cavity is smaller than that of the steel ball.

During the screwing of the hollow bolt in the conduit of the first locking member, the first locking member expands outwardly to force the first locking member into tight engagement with the inner wall of the handlebar.

The hollow bolt comprises a bolt body, a bolt head and a hollow pipeline penetrating through the bolt body and the bolt head.

The tail end of the bolt body is provided with a truncated cone-shaped tail end.

The second locking piece is fixedly connected to one side of the channel of the connecting piece.

A side end of the first locking piece is provided with an inclined plane, and a side end of the second locking piece is provided with an inclined plane.

It is worth mentioning that: the cambered surface mentioned in the application document depends on the required requirements; the outer diameter of the head of the hollow bolt is larger than the inner diameter of the channel in the accommodating groove.

The first working principle is as follows: after the outer diameter expansion part is placed into the tail end pipe body of the handlebar, the outer diameter expansion part of the outer diameter expansion part is connected with the inner wall of the pipe body of the handlebar, and the friction force between the outer diameter expansion part and the inner wall of the pipe body of the handlebar is determined according to the expansion force.

The working principle is as follows: during the screwing of the hollow bolt in the conduit of the first locking member, the first locking member expands outwardly to force the first locking member into tight engagement with the inner wall of the handlebar. In the process of screwing the hollow bolt, the tail end of the bolt body is propped against the bottom of the part to be placed, so that the top end of the part to be placed is connected with the inner wall of the tail end pipe body of the handlebar.

The working principle is as follows: during the screwing of the hollow bolt in the conduit of the first locking member, the first locking member expands outwardly to force the first locking member into tight engagement with the inner wall of the handlebar. At the in-process that the cavity bolt screwed in, the distance of drawing close first retaining member and second retaining member, the inclined plane contact and the dislocation of first retaining member and second retaining member cause first retaining member to move to one side slant and be connected with the tail end body inner wall of handlebar.

The first installation process comprises the following steps: and the hollow bolt penetrates through the channel in the accommodating groove and the second locking piece and then is screwed into the hollow bolt to be connected with the first locking piece.

And a second installation process: the brake cable is led out from the inner wall of the handlebar, passes through the hollow channel of the hollow bolt and is connected with the tail end of the handle.

Advantageous effects

The arrangement of the outer diameter expansion part solves the problem of troublesome disassembly and assembly; the first locking member has a diversified functional trend, and the flexibility of selection of consumers is increased.

Drawings

FIG. l is one of the schematic diagrams of an embodiment of the present invention;

FIG. 2 is a schematic diagram of another embodiment of the present invention;

FIG. 3 is a third schematic view of an embodiment of the present invention;

FIG. 4 is a fourth schematic of an embodiment of the present invention;

FIG. 5 is a schematic illustration of a fifth embodiment of the present invention;

FIG. 6 is a sixth schematic of an embodiment of the present invention;

FIG. 7 is a seventh schematic view of an embodiment of the present invention;

fig. 8 is an eighth schematic view of an embodiment of the present invention.

Detailed Description

In the embodiment of the method, the first step,

referring to fig. 1-8, a brake lever structure comprises a locking structure tightly connected with a handlebar, a handle 1 for pulling a brake cable, and a connecting member 2 for connecting the locking structure and the handle; the locking structure comprises an outer diameter expansion part used for locking when the locking structure is connected with a handlebar; the outer diameter expansion part comprises a hollow bolt 3, a first locking part and a second locking part 6, wherein the first locking part comprises a cylinder body 4 and a hollow pipeline 5 penetrating through the cylinder body; the second locking member comprises a tube body; the connecting piece comprises a containing groove used for being connected with the tail end of the handle; a channel communicated with the second locking piece is arranged in the accommodating groove; the handle is connected to the side wall of the containing groove; the hollow bolt penetrates through the tube body of the second locking piece so as to be connected with the hollow pipeline of the first locking piece.

An accommodating cavity channel 7 is arranged on one side or two sides of the first locking piece, and a part to be placed is arranged in the accommodating cavity channel;

the accommodating cavity is cylindrical, the part to be placed in the accommodating cavity is a combined body 8 with a base and an upper cover, the top of the upper cover is provided with an arc surface, the arc surface is provided with corrugations, the base is a cylinder 9, and the bottom surface of the cylinder is provided with an arc surface.

The shape of the accommodating cavity is cuboid, the part to be placed in the accommodating cavity is a combined body 8 with a base and an upper cover, the top of the upper cover is provided with an arc surface, the arc surface is provided with corrugations, the base is a cuboid column body 10, and the bottom surface of the cuboid column body is provided with an arc surface.

The containing cavity is a cylindrical containing cavity, the inner wall of the cylindrical containing cavity is provided with an oblique surface, the part to be placed in the containing cavity is a steel ball 11, the diameter of an upper opening of the cylindrical containing cavity is larger than that of the steel ball, and the diameter of a lower opening of the cylindrical containing cavity is smaller than that of the steel ball.

During the screwing of the hollow bolt in the conduit of the first locking member, the first locking member expands outwardly to force the first locking member into tight engagement with the inner wall of the handlebar.

The hollow bolt comprises a bolt body 12, a bolt head 13 and a hollow pipeline 14 penetrating through the bolt body and the bolt head.

The tail end of the bolt body is provided with a truncated cone-shaped tail end.

The second locking piece is fixedly connected to one side of the channel of the connecting piece

A side end of the first locking piece is provided with an inclined plane, and a side end of the second locking piece is provided with an inclined plane.

It is worth mentioning that: the cambered surface mentioned in the application document depends on the required requirements; the outer diameter of the head of the hollow bolt is larger than the inner diameter of the channel in the accommodating groove.

The first working principle is as follows: after the outer diameter expansion part is placed into the tail end pipe body of the handlebar, the outer diameter expansion part of the outer diameter expansion part is connected with the inner wall of the pipe body of the handlebar, and the friction force between the outer diameter expansion part and the inner wall of the pipe body of the handlebar is determined according to the expansion force.

The working principle is as follows: during the screwing of the hollow bolt in the conduit of the first locking member, the first locking member expands outwardly to force the first locking member into tight engagement with the inner wall of the handlebar. In the process of screwing the hollow bolt, the tail end of the bolt body is propped against the bottom of the part to be placed, so that the top end of the part to be placed is connected with the inner wall of the tail end pipe body of the handlebar.

The working principle is as follows: during the screwing of the hollow bolt in the conduit of the first locking member, the first locking member expands outwardly to force the first locking member into tight engagement with the inner wall of the handlebar. At the in-process that the cavity bolt screwed in, the distance of drawing close first retaining member and second retaining member, the inclined plane contact and the dislocation of first retaining member and second retaining member cause first retaining member to move to one side slant and be connected with the tail end body inner wall of handlebar.

The first installation process comprises the following steps: and the hollow bolt penetrates through the channel in the accommodating groove and the second locking piece and then is screwed into the hollow bolt to be connected with the first locking piece.

And a second installation process: the brake cable is led out from the inner wall of the handlebar, passes through the hollow channel of the hollow bolt and is connected with the tail end of the handle.

As the flexibility of application selection is increased, when steel balls are selected, a top cover can be added, the steel columns are placed in the accommodating cavity channel, the opening end of the accommodating cavity channel is connected with a cover body 15 for preventing the steel columns from falling out, and a through hole 16 is formed in the middle of the cover body.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.