CN218839413U

CN218839413U - Brake and instrument of riding instead of walk with parking mechanism

Info

Publication number: CN218839413U
Application number: CN202222194610.2U
Authority: CN
Inventors: 王晓鸿; 袁兆东; 古进全
Original assignee: Kunshan Karasawa Clean Energy Technology Co ltd
Current assignee: Kunshan Karasawa Clean Energy Technology Co ltd
Priority date: 2022-08-20
Filing date: 2022-08-20
Publication date: 2023-04-11
Anticipated expiration: 2032-08-20

Abstract

The application belongs to the vehicle brake field and specifically discloses a brake and instrument of riding instead of walk with parking mechanism, include: a brake lever having a lever and a parking portion that rotate around a brake lever shaft when braking; the parking pin is provided with an elastic reset structure and a stop part with an increased diameter; the stop part is pushed axially to move to a rotating plane of the parking part, and the stop part is abutted against the parking part when the brake lever is in a braking position so as to lock the brake lever. Compared with the prior art, the technical scheme is simple in structure and convenient to operate by one hand.

Description

Brake and instrument of riding instead of walk with parking mechanism

Technical Field

The present invention relates to the field of vehicle brakes and, more particularly, to improvements in hand operated brakes.

Background

At present, most oil pressure disc brake parking structures in the market cannot be automatically reset, one-hand operation cannot be realized, and the implementation is not convenient and fast enough.

The parking lock is not fast enough to be operated repeatedly when the parking structure of the partial brake is parked and released.

Parking structure on the market needs the special-shaped structure for the function of realization parking lock more, realizes that the cost is high to be not convenient for process.

It is therefore desirable to provide a parking mechanism with a more optimized structure.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel parking structure, its utensil can automatic re-setting, convenient operation, simple structure is convenient for process production.

The application provides a brake with parking mechanism, includes:

the brake lever is provided with a handle and a parking part which rotate by taking a brake lever shaft as a center when braking;

the parking pin is provided with an elastic reset structure and a stop part with an increased diameter;

the stop part is pushed axially to move to a rotating plane of the parking part, and the stop part is abutted against the parking part when the brake lever is in a braking position so as to lock the brake lever.

In a preferred embodiment, when the brake lever is rotated by a further braking action, the stop portion is separated from the parking portion, and the parking pin is reset by the elastic reset structure.

In a preferred embodiment, the stopper is a cylindrical structure.

In a preferred embodiment, the parking part comprises a first parking part and a second parking part which are arranged in parallel, and the stopping part comprises a first stopping part and a second stopping part which are arranged at intervals; the first stopping portion and the second stopping portion are respectively pushed and moved to the rotating planes of the first parking portion and the second parking portion in the axial direction, and the first stopping portion and the second stopping portion respectively abut against the first parking portion and the second parking portion when the brake lever is located at a braking position, so that the brake lever is locked.

In a preferred embodiment, when the brake lever is rotated by a further braking action, the first stop part and the second stop part are separated from the first parking part and the second parking part respectively, and the parking pin is reset by the elastic resetting structure; the reset first stopper portion is accommodated between the first and second parking portions.

In a preferred embodiment, the brake pump body is included; the brake pump body is provided with a first hole and a second hole for installing a parking pin, the second stopping part is partially arranged in the second hole, and a cap part is arranged at a second end, far away from the second hole, of the second stopping part; the second stop part is sleeved with a return spring, a first end of the return spring abuts against the cap part, and a second end of the return spring abuts against the surface of the pump body.

In a preferred embodiment, the brake pump body includes a cavity for receiving the parking portion and the first stop portion, the parking pin is inserted into the cavity of the brake pump body through a first hole, a second end of the parking pin opposite to the first end is inserted into the second hole, and the first end is connected to an E-shaped clamp spring for axially positioning the parking pin on the brake pump body.

In a preferred embodiment, the parking portion includes a radiused surface thereon for resting on the stop portion.

In a preferred embodiment, the parking part comprises a pin for driving the brake pump, and the radius of the rotating plane of the parking part is smaller than that of the rotating plane of the handle.

The present application has several advances over the prior art: 1. when the brake lever is rotated by further brake action, the stop part is separated from the parking part, and the parking pin is reset by the elastic reset structure, so that the automatic reset function is realized, the single-hand operation of a user is facilitated, and the bicycle is started and ridden quickly. 2. The stop part is of a cylindrical structure, the structure is simple and is not special-shaped, and the stop part is simple and low in cost only by common processes such as turning. 3. The parking portion is as the drive structure of the brake pump body simultaneously, and it is through circular arc surface and the locking of stop portion, and brake, parking overall structure are more simplified compared with prior art.

Drawings

FIG. 1 is an elevational sectional view of the brake, taken along line D-D in FIG. 2.

Fig. 2 is a left side view of the brake.

Fig. 3 isbase:Sub>A sectional view taken along the sectionbase:Sub>A-base:Sub>A shown in fig. 1.

Fig. 4 is a left side view of the brake in the parking state.

FIG. 5 is a front sectional view of the brake in the park condition.

Fig. 6 is a partially enlarged structural view of the brake structure in fig. 1.

Detailed Description

The technical solutions of the present application will be further described below with reference to the accompanying drawings to facilitate those skilled in the art to understand the inventive concepts of the present application.

Referring to fig. 1, the brake generally includes a pump body 200, a lever 100, and a parking pin 400. The brake lever 100 includes a handle 101 and a parking portion 102 that rotate around a brake lever shaft 300 when braking; the parking pin 400 has an elastic return structure 430 and a stopper portion 420 having an increased diameter; the stop portion 420 is pushed axially to move to the rotation plane 120 of the parking portion 102, and the stop portion 420 interferes with the parking portion 102 when in the braking position, so as to lock the brake lever 100. When the brake handle is rotated by further braking action, the stop part is separated from the parking part, and the parking pin is reset by the elastic resetting structure.

Referring to fig. 2 and 3, the stop 420 is an integral part of the park pin. The parking pin 400 includes a parking pin shaft 401 having a small diameter and a stopper portion 420 provided integrally with the parking pin 400, and the parking portion 400 and the parking pin shaft 401 may be integrally formed by turning a metal shaft.

The stop portion 420 has a cylindrical structure. The stop portion 420 comprises a first stop portion 421 and a second stop portion 422 which are arranged at intervals; between the first stop 421 and the second stop 422 is the parking pin 401. The parking pin is mounted on the brake pump body 200; the brake pump body 200 is provided with a first hole 131 and a second hole 132 for mounting the parking pin, the second stopper 422 is partially disposed in the second hole 132, the parking pin 400 is mounted in the first hole 131, and obviously, the diameter of the second hole 132 is larger than that of the first hole 131 to respectively adapt to the mounting of the parking pin 400 and the second stopper 422.

The parking pin 400 is provided with an elastic reset structure. The second stop 422 is provided with a cap 423 away from the first end of the second hole; the second stop portion 421 is sleeved with a return spring 424, a first end of the return spring 424 abuts against the second cap portion 423, and a second end of the return spring 424 abuts against the surface of the pump body 200.

A second end of parking pin 400 opposite to first end 411 is inserted 412 into second hole 132, and first end is connected to E-shaped clamp spring 413 to position parking pin 401 on pump body 200. The axial positioning of the E-shaped circlip enables the parking pin 400 to move within a certain range in the axial direction thereof, so as to support the interference and separation action of the stopping part 420 and the parking part 102 during parking and resetting.

The brake pump body 200 includes a cavity 201. The cavity 201 accommodates the parking portion 102 and the first stopper portion 421, and the cavity 201 also accommodates a portion of the second stopper portion 422 into which the parking pin is inserted through the second hole 132 in the parking state. The brake pump body 200 includes a fixing structure 230 for fixing itself on a handle of the walk-substituting tool, and further includes a first pump body wall 241 and a second pump body wall 242 for forming the cavity, and the first pump body wall 241 and the second pump body wall 242 are respectively provided with the first hole 131 and the second hole 132.

Preferably, the first pump body wall 241 and the second pump body wall 242 of the brake pump body can further be provided with a third hole and a fourth hole, the third hole and the fourth hole are used for installing a brake lever shaft 300, and the parking part 102 and the handle 101 rotate around the brake lever shaft 300 to drive the brake pump 250 during braking.

Preferably, the parking portion 102 includes a rounded surface 105 thereon for resting against the stop portion 420, as described with reference to fig. 6. The arcuate surface is connected tangentially to the plane of the park portion end 420.

Preferably, the radius of the rotation plane 120 of the parking part 102 is smaller than that of the rotation plane of the handle 101 to form a lever effect.

Preferably, the handle 101 has a bent structure 108 formed thereon for finger gripping.

The handle 101 and the parking portion 102 of the brake lever are integrally formed. The parking section 102 includes a first parking section 131 and a second parking section 132 arranged in parallel, and the first parking section is accommodated between the first parking section 131 and the second parking section 132 in a released state (non-parking state) of the brake lever 101.

Referring to fig. 5, the brake lever 100 is shown from park to release. When the brake lever 101 is in the release state (non-parking state), the lever 100 is in position a, the parking lever 100 is rotated to position B, and the parking lever 100 is released to position C, where the angle ab from a to B is greater than the angle bc from B to C. When parking, the parking pin is pushed to position D.

When parking, a user holds the brake lever to rotate the brake lever from the position A to the position B, the parking pin is pushed to the position D (shown in figure 4) by keeping the brake lever held, and the brake lever 100 is released to complete parking. In this process, the first and

second stops

421 and 422 are axially pushed to the rotation planes 120 of the first and

second parking portions

131 and 132, respectively, and the first and

second stops

421 and 422 respectively abut against the arc surfaces 105 and engage with the stop surfaces when the first and

second parking portions

131 and 132 are in the braking position, so as to lock the brake lever 100. At the same time, the restoring force of the restoring spring 251 of the brake pump 200 causes the parking section 102 to press the first stop 421 and the second stop 422 of the parking pin, so as to prevent the tendency of restoring the parking shaft 400. The parking pin 400 and the position 100 of the brake lever are thereby locked to one another.

When the parking is released, the brake lever 100 is rotated by a further braking action to rotate the brake lever from the position B to the position C, the first stop portion 421 and the second stop portion 422 respectively abut against the arc surface 105 and the stop portion surface with the first parking portion 131 and the second parking portion 132 in the braking position, the parking pin shaft is released by the first parking portion 131, and the return spring 424 pushes the parking pin shaft to the initial position E (as shown in fig. 3), so that the release is completed.

The present application has several advances over the prior art: 1. the brake lever is operated by one hand, and when the brake lever rotates from the position B to the position C during releasing, the stop part and the parking part do not need to be operated when being released immediately; when the parking is carried out, only the brake crank is required to rotate from the position A to the position B, then the thumb is used for pressing the parking pin, so that the parking pin is axially moved to the position D, the single-hand operation of a user is realized, and the riding is quickly started. 2. The first stop part/the second stop part of the parking pin is of a cylindrical structure and forms a step structure with the parking pin shaft, only one-time process machining such as reducing turning is needed, the structure is simple, and the cost is low. 3. The parking portion is as the drive structure of the brake pump body simultaneously, and it is through circular arc surface and the locking of stop portion, and the whole essential element of brake, parking overall structure is only two, simplifies overall structure and has reduced the fault rate and the possibility of parking inefficacy.

Claims

1. A brake with a parking mechanism, comprising:

a brake lever having a lever and a parking portion that rotate around a brake lever shaft when braking;

2. A brake with a parking mechanism according to claim 1, wherein when said lever is rotated by a further braking action, said stop portion is disengaged from said parking portion, and said parking pin is reset by a resilient reset mechanism.

3. The brake with parking mechanism of claim 1, wherein the stop portion is cylindrical in configuration.

4. The brake with the parking mechanism as recited in claim 3, wherein the parking portion comprises a first parking portion and a second parking portion arranged in parallel, and the stopping portion comprises a first stopping portion and a second stopping portion arranged at intervals; the first stopping portion and the second stopping portion are respectively pushed and moved to the rotating planes of the first parking portion and the second parking portion in the axial direction, and the first stopping portion and the second stopping portion respectively abut against the first parking portion and the second parking portion when the brake lever is located at a braking position, so that the brake lever is locked.

5. The brake with the parking mechanism according to claim 4, wherein when the brake lever is rotated by a further braking action, the first stop portion and the second stop portion are separated from the first parking portion and the second parking portion, respectively, and the parking pin is reset by the elastic reset structure; the reset first stopper portion is accommodated between the first and second parking portions.

6. A brake with a parking mechanism according to claim 4, characterized by comprising a brake pump body; the brake pump body is provided with a first hole and a second hole for installing a parking pin, the second stopping part is partially arranged in the second hole, and a cap part is arranged at a second end, far away from the second hole, of the second stopping part; the second stop part is sleeved with a return spring, a first end of the return spring abuts against the cap part, and a second end of the return spring abuts against the surface of the pump body.

7. The brake of claim 6, wherein the brake pump body includes a cavity that receives the parking portion and the first stop portion, the parking pin is inserted into the cavity of the brake pump body through a first aperture, a second end of the parking pin opposite the first end is inserted into the second aperture, and the first end is coupled to an E-clip that axially positions the parking pin on the brake pump body.

8. A brake having a parking mechanism according to claim 3, wherein the parking portion includes a rounded surface thereon for resting on the detent portion.

9. The brake with parking mechanism of claim 6, wherein the parking part comprises a pin for driving a brake pump, and the radius of the rotating plane of the parking part is smaller than that of the rotating plane of the handle.

10. A walk-substituting tool comprising a brake according to any one of claims 1-9.