CN215155393U

CN215155393U - Speed regulating brake crank

Info

Publication number: CN215155393U
Application number: CN202120715853.9U
Authority: CN
Inventors: 石荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-08
Filing date: 2021-04-08
Publication date: 2021-12-14
Anticipated expiration: 2031-04-08

Abstract

The utility model discloses a speed-regulating brake crank, which comprises a body, a regulating seat and a fixed seat, wherein the fixed seat is arranged on the body, and the regulating seat is rotatably arranged on the fixed seat; the magnetic sensor is characterized by further comprising a Hall sensor and a magnetic piece, wherein one of the Hall sensor and the magnetic piece is arranged on the fixed seat, and the other one of the Hall sensor and the magnetic piece is arranged on the adjusting seat; the torsion spring is further included, and the two ends of the torsion spring are respectively connected with the fixed seat and the adjusting seat. The utility model provides a speed governing brake lever, simple structure, the speed governing is convenient.

Description

Speed regulating brake crank

Technical Field

The utility model relates to an electric bicycle technical field, specifically speaking relates to a speed governing brake lever.

Background

The brake lever is a brake component of a bicycle or an electric bicycle. Chinese patent CN1336294A discloses a speed regulating device for a brake lever of an electric vehicle, which comprises a brake lever seat and a brake lever, and further comprises a speed regulating control member with a toggle member, wherein the speed regulating control member is provided with a control signal trigger member and is mounted on the brake lever seat through a revolute pair. When the speed regulating device is operated, the relative position of the control signal trigger part and the control signal output part can be changed by stirring the regulating part, so that the speed regulating control with the same effect as the existing rotating handle type speed regulating control device is realized. But the structure is relatively complex, and the speed regulation stability and reliability are low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a speed governing brake lever, simple structure, the speed governing is convenient.

The utility model discloses a technical scheme that speed governing brake lever adopted is:

a speed regulation brake crank comprises a body, an adjusting seat and a fixed seat, wherein the fixed seat is arranged on the body, and the adjusting seat is rotatably arranged on the fixed seat; the magnetic sensor is characterized by further comprising a Hall sensor and a magnetic piece, wherein one of the Hall sensor and the magnetic piece is arranged on the fixed seat, and the other one of the Hall sensor and the magnetic piece is arranged on the adjusting seat; the torsion spring is further included, and the two ends of the torsion spring are respectively connected with the fixed seat and the adjusting seat.

Preferably, the hall sensor is arranged on the fixed seat, and the magnetic part is arranged on the adjusting seat.

As the preferred scheme, the Hall sensor is arranged on the adjusting seat, and the magnetic part is arranged on the fixing seat.

As a preferred scheme, the bottom of the adjusting seat is inwards recessed to form a cavity, the magnetic part is arranged in the cavity, the fixing seat comprises a protruding ring body, and the hall sensor is arranged on the inner side of the ring body; the cavity of the adjusting seat is downwards covered on the ring body, so that the Hall sensor is opposite to the magnetic part.

Preferably, a protruding retaining ring is formed in the cavity, the torsion spring is arranged in the retaining ring, the fixing seat and the adjusting seat are provided with positioning holes, and two ends of the torsion spring are respectively inserted into the positioning holes.

Preferably, the outer side of the baffle ring protrudes laterally to form a boss, the boss is provided with an installation groove, and the magnetic member is arranged in the installation groove.

Preferably, the body is further provided with a bell, and the bell is arranged on the adjusting seat.

Preferably, the bell comprises a bell cover and a toggle key group, the toggle key group comprises a toggle piece, an elastic piece and a mounting seat, the toggle piece is connected with the mounting seat through the elastic piece, a knocking part protrudes from the toggle piece and is close to the bell cover.

Preferably, a through groove is formed in the mounting seat, a protrusion matched with the width of the through groove is formed at the lower end of the toggle piece in a protruding mode, and the swinging direction of the toggle piece is guided through the matching of the protrusion and the through groove.

Preferably, the bell jar further comprises a supporting column, the upper end of the supporting column is connected with the middle of the bell cover, the lower end of the supporting column penetrates through the adjusting seat to be connected with the fixing seat, and the diameter of the upper end of the supporting column is larger than that of the lower end of the supporting column.

The utility model discloses a speed governing brake lever's beneficial effect is: when the speed of the electric bicycle needs to be adjusted, the adjusting seat is stirred by fingers, the adjusting seat rotates relative to the fixing seat, the magnetic part moves along with the adjusting seat, the Hall sensor senses a magnetic force change signal and sends a signal to the controller, and therefore the rotating speed of the motor is adjusted. After the adjustment is finished, the adjusting seat is loosened, and the adjusting seat rotates back to the original position under the action of the torsion spring. The speed regulation structure is simple, the speed regulation is convenient, the reset is realized through the torsion spring, and the stability and the reliability are good.

Drawings

Fig. 1 is a schematic structural view of the speed-regulating brake lever of the present invention.

Fig. 2 is an explosion diagram of the speed-regulating brake lever of the utility model.

Fig. 3 is a schematic structural view of the adjusting seat of the speed-adjusting brake lever of the present invention.

Detailed Description

The invention will be further elucidated and described with reference to the following embodiments and drawings in which:

referring to fig. 1 and 2, a speed-regulating brake lever includes a body 10, an adjusting seat 20 and a fixing seat 30, wherein the fixing seat 30 is disposed on the body 10, and the adjusting seat 20 is rotatably disposed on the fixing seat 30.

The speed regulation brake crank further comprises a Hall sensor 40, a magnetic part and a torsion spring 50, wherein one of the Hall sensor 40 and the magnetic part is arranged on the fixed seat 30, and the other one is arranged on the regulation seat 20. And two ends of the torsion spring 50 are respectively connected with the fixed seat 30 and the adjusting seat 20.

The utility model discloses a speed governing brake lever, when needing to adjust electric bicycle speed of a motor vehicle, the finger is stirred and is adjusted seat 20, makes and adjusts the relative fixing base 30 rotation of seat, and the removal is followed to the magnetic part, and hall sensor 40 senses magnetic force change signal, gives the controller signals to the accommodate motor rotational speed. After the adjustment is finished, the adjusting seat 20 is released, and the adjusting seat 20 rotates back to the original position under the action of the torsion spring 50. The speed regulation structure is simple, the speed regulation is convenient, the reset is realized through the torsion spring 50, and the stability and the reliability are good.

The hall sensor 40 is arranged on the fixed seat 30, and the magnetic part is arranged on the adjusting seat 20. In another embodiment, the hall sensor 40 is disposed on the adjusting base 20, and the magnetic member is disposed on the fixing base 30.

Referring to fig. 2 and 3, the bottom of the adjusting seat 20 is recessed inward to form a cavity 21, and the magnetic member is disposed in the cavity 21. The fixing seat 30 is formed on the body 10, the fixing seat 30 includes a protruding ring body 31, and the hall sensor 40 is disposed inside the ring body 31. The cavity 21 of the adjusting base 20 is covered downwards on the ring body 31, so that the hall sensor 40 is opposite to the magnetic part. At this time, the radial offset of the adjusting seat 20 is limited by the ring body 31, and the connection reliability is good.

A protruding retaining ring 22 is formed in the cavity 21, and the torsion spring 50 is arranged in the retaining ring 22, so that the torsion spring 50 is prevented from interfering with other surrounding structures during expansion and contraction. The fixing seat 30 and the adjusting seat 20 are provided with positioning holes, and two ends of the torsion spring 50 are respectively inserted into the positioning holes.

The outer side of the baffle ring 22 protrudes laterally to form a boss 221, an installation groove 222 is formed on the boss 221, and the magnetic member is arranged in the installation groove 222.

The body 10 is further provided with a bell, and the bell is arranged on the adjusting seat 20. The bell comprises a bell cover 60 and a toggle key group 70, wherein the toggle key group 70 comprises a toggle piece 71, an elastic piece 72 and a mounting seat 73, the toggle piece 71 is connected with the mounting seat 73 through the elastic piece 72, a knocking part is formed on the toggle piece 71 in a protruding mode, and the knocking part is close to the bell cover 60.

The adjusting seat 20 is provided with a push handle 23 protruding in the radial direction. The push handle 23 pushes the adjusting base 20 to rotate relative to the fixed base 30, and an inclined arc surface is formed on the push handle 23. Wherein, the mounting seat 73 is arranged on the push handle 23. The toggle member 71 is toggled to move the striking portion away from the bell cup 60, and then the hand is released, at which time the striking portion swings back and forth under the action of the elastic member 72 to strike the bell cup 60.

A through groove 731 is formed on the mounting seat 73, a protrusion 711 matching with the width of the through groove 731 is formed at the lower end of the toggle member 71 in a protruding manner, and the swinging direction of the toggle member 71 is guided by the cooperation of the protrusion 711 and the through groove 731. The elastic member 72 is a spring, and positioning posts are formed at corresponding positions of the through groove 731 and the protrusion 711, such that two ends of the elastic member 72 are respectively sleeved on the two positioning posts.

The speed regulation brake crank further comprises a supporting column 80, the upper end of the supporting column 80 is connected with the middle part of the bell cover 60, the lower end of the supporting column 80 penetrates through the adjusting seat 20 to be connected with the fixed seat 30, and the diameter of the upper end of the supporting column 80 is larger than that of the lower end of the supporting column 80. The adjusting seat 20 is arranged at the lower end of the supporting column 80 in a penetrating manner, and the displacement of the adjusting seat 20 in the length direction of the supporting column 80 is limited by the upper end of the supporting column 80. Specifically, the upper end of the support column 80 is provided with a threaded hole, and a screw passes through the middle of the bell cover 60 and extends into the threaded hole. A protruding convex column is formed at the lower end of the fixed seat 30, and another threaded hole is formed in the convex column, so that the lower end part of the supporting column 80 extends into the another threaded hole.

In the above solution, a predetermined gap is kept between the bell cover 60 and the adjusting seat 20, so as to prevent the vibration required by the sound production from being absorbed by the adjusting seat 20.

It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A speed regulation brake crank is characterized by comprising a body, an adjusting seat and a fixed seat, wherein the fixed seat is arranged on the body, and the adjusting seat is rotatably arranged on the fixed seat;

the magnetic sensor is characterized by further comprising a Hall sensor and a magnetic piece, wherein one of the Hall sensor and the magnetic piece is arranged on the fixed seat, and the other one of the Hall sensor and the magnetic piece is arranged on the adjusting seat;

the torsion spring is further included, and the two ends of the torsion spring are respectively connected with the fixed seat and the adjusting seat.

2. The speed governing brake crank of claim 1, wherein the hall sensor is disposed on the fixed seat, and the magnetic member is disposed on the adjusting seat.

3. The speed governing brake crank of claim 1, wherein the hall sensor is disposed on the adjusting seat, and the magnetic member is disposed on the fixed seat.

4. The speed regulation brake crank of claim 2, wherein the bottom of the regulation seat is recessed inwards to form a cavity, the magnetic member is arranged in the cavity, the fixed seat comprises a protruding ring body, and the hall sensor is arranged on the inner side of the ring body;

the cavity of the adjusting seat is downwards covered on the ring body, so that the Hall sensor is opposite to the magnetic part.

5. The speed governing brake crank of claim 4, wherein a protruding baffle ring is formed in the cavity, and the torsion spring is arranged in the baffle ring;

the fixing seat and the adjusting seat are provided with positioning holes, and two ends of the torsion spring are respectively inserted into the positioning holes.

6. The speed governing brake crank of claim 5, wherein the baffle ring protrudes laterally to form a boss, the boss is provided with an installation groove, and the magnetic member is arranged in the installation groove.

7. The speed governing brake lever according to any one of claims 1 to 6, wherein the body is further provided with a bell, and the bell is provided on the adjusting seat.

8. The speed governing lever according to claim 7 wherein the bell includes a bell cover and a dial key set, the dial key set including a dial member, a resilient member, and a mounting base, the dial member being connected to the mounting base by the resilient member, the dial member having a projection thereon forming a striking portion, the striking portion being proximate the bell cover.

9. The speed governing brake crank of claim 8, wherein the mounting seat is formed with a through slot, the lower end of the toggle piece protrudes to form a protrusion matching with the width of the through slot, and the swinging direction of the toggle piece is guided by the cooperation of the protrusion and the through slot.

10. The speed governing brake crank of claim 7, further comprising a support post, wherein the upper end of the support post is connected with the middle part of the bell cover, the lower end of the support post passes through the adjusting seat to be connected with the fixed seat, and the diameter of the upper end of the support post is larger than that of the lower end of the support post.