Brake handle with adjustable brake sensitivity

Abstract

The brake handle with the adjustable brake sensitivity comprises a pump body and a handle, a piston is arranged in the pump body, the piston is provided with a piston ejector rod in a linkage mode, the pump body is provided with hinge seats, a handle installation cavity is formed between the hinge seats, the handle comprises a handle connecting part and a handle body, and the handle connecting part is arranged in the handle installation cavity. The handle connecting part is provided with a handle pressing block, the handle pressing block comprises a handle pressing block connecting part and a pressing block part, the hinge shaft rotationally penetrates through the handle pressing block connecting part, the pressing block part abuts against the piston ejector rod, the handle pressing block is provided with an adjusting part, and the adjusting part is provided with an opening groove and a mounting hole. The installation hole is provided with an eccentric shaft capable of rotating, at least two positioning holes are formed in the circumferential direction of the eccentric shaft, an elastic piece is arranged in the open groove, the elastic piece abuts against a ball, one end of the upper portion of the elastic piece abuts against the handle connecting part, the distance of the handle pressing block pressing the piston ejector rod can be adjusted, and then the braking sensitivity can be adjusted.

Description

Technical Field

[0001] The utility model relates to the field of brake handles, in particular to a brake handle with adjustable braking sensitivity. Background Art

[0002] Most of the existing motorcycles are hydraulic brake type motorcycles. The braking system of this type of motorcycle mainly includes a brake handle and a hydraulic brake pump. The brake handle is hinged on the hydraulic brake pump. When the motorcycle brake handle is manually turned, the handle pressure block pushes the piston push rod, and the piston push rod squeezes the piston arranged inside the hydraulic brake pump, so that the hydraulic oil in the brake handle drives the piston on the brake caliper to clamp the brake disc after passing through the oil circuit, thereby achieving braking. The distance between the handle pressure block and the pressing piston push rod is the main factor affecting the braking sensitivity. The distance between the handle pressure block of the existing brake handle pressing the piston push rod is fixed, and the braking sensitivity cannot be adjusted. Summary of the invention

[0003] The technical problem to be solved by the present invention is to address the deficiencies of the above-mentioned prior art.

[0004] Provided is a brake handle with adjustable braking sensitivity, which can adjust the distance that a handle pressure block presses a piston push rod, thereby achieving adjustable braking sensitivity.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a brake handle with adjustable braking sensitivity, comprising a pump body and a handle, wherein a piston is arranged in the pump body, and the piston linkage is provided with a piston push rod extending to the outer side of one upper end of the pump body, and an articulated seat is relatively provided at one end of the upper end of the pump body, and a handle installation cavity is formed between the articulated seats, and the handle comprises a handle connecting part and a handle, and the handle connecting part is placed in the handle installation cavity, and the handle connecting part is hingedly connected to the articulated seats on both sides through an articulated shaft, and the handle connecting part is provided with a handle pressure block cavity, and a handle pressure block is provided in the handle pressure block cavity, and the handle pressure block comprises a handle pressure block connecting part and a pressure block part arranged at one end of the handle pressure block connecting part, The hinge shaft rotates and passes through the handle pressure block connecting part, and the pressure block part abuts against the piston push rod, and is characterized in that: the handle pressure block connecting part is provided with an adjusting part at one end away from the pressure block part, and the adjusting part is provided with an opening groove facing the handle connecting part, and the adjusting part is provided with a mounting hole perpendicular to the opening groove, and the mounting hole is connected with the lower end of the opening groove, and the mounting hole is provided with a rotatable eccentric shaft, and at least two positioning holes are provided in the circumference of the eccentric shaft, and the positioning holes are arranged corresponding to the opening groove, and the spacing between each positioning hole and the opening groove changes with the rotation of the eccentric shaft, and an elastic part is provided in the opening groove, and a ball matched with the positioning hole is abutted at the lower end of the elastic part, and the upper end of the elastic part abuts against the handle connecting part.

[0006] The utility model is further configured as follows: the eccentric shaft comprises a base, an adjusting shaft portion eccentrically arranged at one end of the base, an operating portion coaxial with the base is arranged at one end of the adjusting shaft portion relative to the bottom, and the adjusting shaft portion is provided with at least two positioning holes.

[0007] A further arrangement of the utility model is: when the adjusting shaft portion rotates to the minimum distance from the opening slot, the adjusting shaft portion is provided with a first positioning hole toward the opening slot; when the adjusting shaft portion rotates to the maximum distance from the opening slot, the adjusting shaft portion is provided with a third positioning hole toward the opening slot; the first positioning hole and the third positioning hole are located in the same circumferential direction; a second positioning hole is provided on the circumferential end surface of the adjusting shaft portion; the opening direction of the second positioning hole forms an angle of 90° with the opening direction of the first positioning hole or the opening direction of the third positioning hole, and the second positioning hole is located in the same circumferential direction as the first positioning hole or the third positioning hole.

[0008] A further configuration of the utility model is: the elastic member includes a first spring and a second spring, the open groove is provided with an upper groove body and a lower groove body, the lower groove body is connected to the mounting hole, a limit block is provided between the upper groove body and the lower groove body, the first spring is arranged in the upper groove body, and the upper end of the first spring abuts against the handle connecting part, and the lower end abuts against the limit block, the second spring is arranged in the lower groove body, and the upper end of the second spring abuts against the limit block, and the lower end abuts against the ball.

[0009] The utility model with the above characteristics: the first positioning hole, the second positioning hole, and the third positioning hole correspond to the three gears of braking sensitivity respectively, the first positioning hole is closest to the opening slot, that is, closest to the lower slot body, the ball is placed in the first positioning hole, the force generated by the second spring is the largest, driving the handle pressure block to rotate to the maximum extent and thereby drive the handle to deflect, the handle pressure block is rotated to the maximum extent to shorten the distance that the piston push rod drives the piston to move, thereby making the braking sensitivity the highest, the third positioning hole is farthest from the lower slot body, the ball is placed in the third positioning hole, at this time the force generated by the second spring is the smallest or none, the distance that the piston push rod drives the piston to move is the largest, and at this time the braking sensitivity is the lowest, when the ball is placed in the second positioning hole, at this time the force generated by the second spring is moderate, the distance that the piston push rod drives the piston to move is moderate, and at this time the braking sensitivity is moderate.

[0010] A further configuration of the present invention is that the operating portion is provided with marks corresponding to the first positioning hole, the second positioning hole and the third positioning hole respectively.

[0011] The utility model with the above features makes it convenient for operators to know the gear position and facilitate adjustment and selection.

[0012] The utility model has the beneficial effect that the distance that the handle pressing block presses the piston push rod can be adjusted, thereby achieving adjustable braking sensitivity.

[0013] The utility model is further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the utility model.

[0015] Figure 2 It is a schematic diagram of an explosion of an embodiment of the utility model.

[0016] Figure 3 A three-dimensional schematic diagram of an eccentric shaft according to an embodiment of the utility model Figure 1 .

[0017] Figure 4 A three-dimensional schematic diagram of an eccentric shaft according to an embodiment of the utility model Figure 2 .

[0018] Figure 5 It is a cross-sectional schematic diagram of the handle pressure block connecting part, the pressure block part, and the adjustment part of the embodiment of the utility model. DETAILED DESCRIPTION

[0019] like Figure 1 —— Figure 5A brake handle with adjustable braking sensitivity is shown, comprising a pump body 1 and a handle 2, wherein the pump body 1 is provided with a piston, which is not shown in the figure, and the piston linkage is provided with a piston push rod 3 extending to the outer side of the upper end of the pump body 1, and an articulated seat 4 is relatively provided at the upper end of the pump body 1, and a handle installation cavity is formed between the articulated seats 4, and the handle 2 comprises a handle connecting portion 201 and a handle 202, wherein the handle connecting portion 201 is placed in the handle installation cavity, and the handle connecting portion 201 is hingedly connected to the articulated seats 4 on both sides through an articulated shaft 5, and the handle connecting portion 201 is provided with a handle pressing block cavity, and a handle pressing block 6 is provided in the handle pressing block cavity, and the handle pressing block 6 comprises a handle pressing block connecting portion 601 and a handle pressing block connecting portion 601 arranged on the handle pressing block connecting portion 601 The pressure block part 602 at one end, the hinge shaft 5 is rotatably passed through the handle pressure block connecting part 601, the pressure block part 602 abuts against the piston push rod 3, and the handle pressure block connecting part 601 is provided with an adjusting part 603 at one end away from the pressure block part 602, and the adjusting part 603 is provided with an open groove facing the handle connecting part 201, and the adjusting part 603 is perpendicular to the open groove and provided with a mounting hole 7, and the mounting hole 7 is connected with the lower end of the open groove, and the mounting hole 7 is provided with a rotatable eccentric shaft 8, and the circumference of the eccentric shaft 8 is provided with at least two positioning holes, and the positioning holes are arranged corresponding to the open groove, and the spacing between each positioning hole and the open groove changes with the rotation of the eccentric shaft 8, and an elastic member is provided in the open groove, and one end below the elastic member abuts against a member that matches the positioning hole The eccentric shaft comprises a base 801 and an adjusting shaft portion 902 eccentrically arranged at one end of the base 801. An operating portion 803 coaxial with the base 801 is arranged at one end of the adjusting shaft portion 802 relative to the bottom 801. The adjusting shaft portion 802 is provided with at least two positioning holes. When the adjusting shaft portion 802 is rotated to the minimum distance from the opening groove, the adjusting shaft portion 802 is provided with a first positioning hole 10 toward the opening groove. When the adjusting shaft portion 802 is rotated to the maximum distance from the opening groove, the adjusting shaft portion 802 is provided with a third positioning hole 11 toward the opening groove. The first positioning hole 10 and the third positioning hole 11 are located in the same circumferential direction. There is a second positioning hole 12, and the opening direction of the second positioning hole 12 forms a 90° angle with the opening direction of the first positioning hole 10 or the opening direction of the third positioning hole 11. The elastic member includes a first spring 13 and a second spring 14. The opening groove is provided with an upper groove body 15 and a lower groove body 16. The lower groove body 16 is connected to the mounting hole 7. A limit block 17 is provided between the upper groove body 15 and the lower groove body 16. The limit block and the mediation part 603 are integrally formed. The first spring 13 is arranged in the upper groove body 15, and the upper end of the first spring 13 abuts against the handle connecting part 201, and the lower end abuts against the limit block 17. The second spring 14 is arranged in the lower groove body 16, and the upper end of the second spring 14 abuts against the limit block 17, and the lower end abuts against the ball 9.The operating portion 903 is provided with marks 18 corresponding to the first positioning hole 10, the third positioning hole 11 and the second positioning hole 12 respectively.

Claims

1. A brake handle with adjustable braking sensitivity, comprising a pump body and a handle, wherein a piston is arranged in the pump body, and the piston is linked to a piston push rod extending to the outer side of one end above the pump body, and an articulated seat is arranged opposite to one end above the pump body, and a handle installation cavity is formed between the articulated seats, and the handle comprises a handle connecting part and a handle, and the handle connecting part is placed in the handle installation cavity, and the handle connecting part is hingedly connected to the articulated seats on both sides through an articulated shaft, and the handle connecting part is provided with a handle pressure block cavity, and a handle pressure block is arranged in the handle pressure block cavity, and the handle pressure block comprises a handle pressure block connecting part and a pressure block part arranged at one end of the handle pressure block connecting part, and the articulated shaft is rotatably passed through the handle pressure block connecting part, and the pressure block part abuts against the piston push rod, and is characterized in that: An adjusting portion is provided at one end of the handle pressing block connecting portion away from the pressing block portion, and the adjusting portion is provided with an open groove facing the handle connecting portion. The adjusting portion is provided with a mounting hole perpendicular to the open groove, and the mounting hole is communicated with the lower end of the open groove. The mounting hole is provided with a rotatable eccentric shaft, and at least two positioning holes are provided in the circumference of the eccentric shaft. The positioning holes are arranged corresponding to the open groove, and the spacing between each positioning hole and the open groove changes with the rotation of the eccentric shaft. An elastic member is provided in the open groove, and a ball matched with the positioning hole is abutted at a lower end of the elastic member, and an upper end of the elastic member abuts against the handle connecting portion.

2. The brake handle with adjustable braking sensitivity according to claim 1, characterized in that: The eccentric shaft comprises a base, an adjusting shaft portion eccentrically arranged at one end of the base, an operating portion coaxial with the base is arranged at one end of the adjusting shaft portion opposite to the bottom, and the adjusting shaft portion is provided with at least two positioning holes.

3. The brake handle with adjustable braking sensitivity according to claim 2, characterized in that: When the adjusting shaft portion rotates to the minimum distance from the opening slot, the adjusting shaft portion is provided with a first positioning hole toward the opening slot; when the adjusting shaft portion rotates to the maximum distance from the opening slot, the adjusting shaft portion is provided with a third positioning hole toward the opening slot; the first positioning hole and the third positioning hole are located in the same circumferential direction; a second positioning hole is provided on the circumferential end surface of the adjusting shaft portion; an opening direction of the second positioning hole forms an angle of 90° with an opening direction of the first positioning hole or an opening direction of the third positioning hole, and the second positioning hole is located in the same circumferential direction as the first positioning hole or the third positioning hole.

4. The brake handle with adjustable braking sensitivity according to claim 1, characterized in that: The elastic member includes a first spring and a second spring, the open groove is provided with an upper groove body and a lower groove body, the lower groove body is connected to the mounting hole, a limit block is provided between the upper groove body and the lower groove body, the first spring is arranged in the upper groove body, and the upper end of the first spring abuts against the handle connecting part, and the lower end abuts against the limit block, the second spring is arranged in the lower groove body, and the upper end of the second spring abuts against the limit block, and the lower end abuts against the ball.

5. The brake handle with adjustable braking sensitivity according to claim 3, characterized in that: The operating portion is respectively provided with marks corresponding to the first positioning hole, the second positioning hole and the third positioning hole.

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