CN108068778A - Caliper structure of automobile brake - Google Patents

Abstract

The invention provides a caliper structure for automobile brake, wherein a groove is arranged at the bottom of a containing chamber of a base at the upper part of a caliper body, an oil passage is arranged between the groove and a piston chamber, an oil inlet is arranged at one side of the base, an oil inlet communicated with the containing chamber is arranged in the oil inlet, a leakage-proof gasket is embedded on the wall surface of the containing chamber, a compression spring is arranged in the groove, a pushing piston is arranged in the containing chamber, the top surface of the pushing piston is arranged as a diagonal plane, an arc chute is arranged on the diagonal plane, a fixed seat is arranged above the base, an arc-shaped guide groove is arranged on the fixed seat, a linkage piece is arranged above the fixed seat, a push rod is arranged at the bottom of the linkage piece, the push rod penetrates through the arc-shaped guide groove of the fixed seat and is positioned in the arc-shaped chute of the pushing piston, a pivot is arranged between, the end part of a hand brake cable is fixed on the linkage piece, thus the caliper structure with both foot brake function and hand brake function is obtained.

Description

Caliper structure of automobile brake

technical field

The invention relates to a caliper structure for automobile brakes, in particular to a caliper structure with the functions of foot brake and hand brake.

Background technique

Press, the braking system of a general car is divided into foot brakes and hand brakes. When the vehicle is moving, use the foot brake to stop the vehicle from moving forward, and when the vehicle is stopped, the hand brake is used to brake and park in order to prevent the car from sliding. However, the existing caliper devices installed on the wheels of automobiles do not have a driving mechanism for driving the brake pads by the hand brake lever, so the general caliper device must be equipped with a clamping device for driving the brake pads by the hand brake lever. When the user pulls the hand brake lever, the clamping device is used to produce the effect of the hand brake, so there is a hook structure added to the brake pad of the caliper device, and the brake line is connected to the hand brake lever. When the user steps on the brake pedal, the piston in the caliper device pushes the brake pads to clamp on both sides of the disc of the wheel, and achieves the effect of the foot brake by means of hydraulic actuation. To drive the hook structure to push the brake pads on both sides of the disc of the wheel to achieve the function of the hand brake in a mechanical way. However, the existing hand brake structure needs to add a mechanical structure to the caliper device to drive the brake. The brake pads are operated, and its components are relatively complicated, and when the hook drives the brake pads to clamp the brake, its clamping force is relatively insufficient. Due to insufficient clamping force, the vehicle may still have a dangerous situation of sliding.

Contents of the invention

The main purpose of the present invention is to provide a caliper structure for automobile brakes, which can effectively solve the problem that existing automobile foot brakes and hand brakes must be provided with separate braking mechanisms.

The caliper structure of the automobile brake of the present invention is mainly provided with a caliper body, and the caliper body is provided with a draw-in groove for the disc of the wheel to be set in. The draw-in groove is provided with two brake pads, and each Correspondingly, there are several piston chambers, and each piston chamber is provided with a piston, which can push the brake pad to be clamped on the disc of the wheel. There is an oil passage in the caliper body, and the oil passage is connected to each piston chamber. ;

It is characterized in that: the upper part of the caliper body is provided with a base, the top surface of the base is provided with several screw holes, the base is provided with a chamber, and the bottom of the chamber is provided with a groove, the groove and the piston There is an oil channel between the chambers to communicate with each other. One side of the base is provided with an oil inlet. The oil inlet is provided with an oil inlet hole connected to the chamber. The wall of the chamber is embedded with several A leak-proof gasket, a compression spring is set in the groove, a thrust piston is arranged in the chamber and is located above the compression spring, the top surface of the thrust piston is set as a beveled surface, and a bevel is provided on the beveled surface Arc-shaped chute, a fixed seat is arranged on the top of the base, and the fixed seat is screwed on the screw hole of the base by several screw fixing elements. The guide groove corresponds to the arc-shaped chute of the pushing piston, and the fixed seat is provided with a link, and the bottom of the link is provided with a push rod, and the push rod is installed in the arc-shaped guide groove of the fixed seat Inside, the bottom end of the push rod is located in the arc-shaped chute of the push piston, a pivot is provided between the fixed seat and the linkage, and the pivot is screwed on the base by a screw fixing element On one of the screw holes, one end of a tension spring is fixed on the linkage, the other end of the tension spring is fixed on the fixing seat, a positioning seat is arranged on the fixing seat, and the positioning seat A hand brake line is arranged on the top, and the end of the hand brake line is fixed on the linkage piece.

In the brake caliper structure of the present invention, the oil inlet hole on the base is located between the two anti-leakage gaskets in the chamber.

The caliper structure of the automobile brake of the present invention has the advantage that a hand brake driving structure is directly set on the caliper body, and the hydraulic pressure and the piston inside the caliper are actuated by the hand brake driving structure to push the brake pads to perform foot braking or hand braking. The function of the brake system makes the overall structure of the brake system more streamlined, which can reduce the manufacturing cost, make the operation and use more convenient, and make the brake and parking safer.

Description of drawings

Fig. 1 is an exploded perspective view of an embodiment of the present invention.

Fig. 2 is a three-dimensional assembled view of the embodiment of the present invention.

Fig. 3 is a combined sectional view of the embodiment of the present invention.

Fig. 4 is a schematic diagram of the action of the foot brake according to the embodiment of the present invention.

Fig. 5 is a schematic diagram of the action of the parking brake according to the embodiment of the present invention.

Fig. 6 is a schematic top view of the parking brake in the embodiment of the present invention without actuation.

Fig. 7 is a schematic top view of the parking brake actuation according to the embodiment of the present invention.

Explanation of reference signs: disc A; 1 caliper body; 10 card slot; 11 brake pad; 12 piston chamber; 13 piston; 14 oil channel; Oil inlet; 19 Oil inlet; 2 Anti-leakage gasket; 3 Compression spring; 4 Resist piston; 40 Inclined section; 41 Arc chute; 5 Fixed seat; Department; 6 linkages; 60 push rods; 61 pivots; 62 screw elements; 63 tension springs; 7 positioning seats; 8 hand brake lines; 80 ends; 81 fixed pieces.

Detailed ways

Relevant present invention is for reaching above-mentioned purpose of use and effect, the technical means that adopts, presents preferred feasible embodiment hereby, and cooperates as shown in the drawing, is described in detail as follows:

The embodiment of the present invention, please refer to Fig. 1, Fig. 2, shown in Fig. 3, is mainly provided with a caliper body 1, and this caliper body 1 is provided with the draw-in groove 10 that the disc A of the wheel is set in, and this draw-in groove 10 There are two brake pads 11 (as shown in Figure 3 ) inside, and several piston chambers 12 are respectively arranged on the two opposite walls of the draw-in groove 10, and a piston 13 is respectively arranged in the piston chambers 12, and the piston 13 can push the The brake pads 11 are clamped on the disc A of the wheel. The caliper body 1 is provided with an oil channel 14, and the oil channel 14 is connected to each of the piston chambers 12. The upper part of the caliper body 1 is provided with a base 15, The top surface of the base 15 is provided with several screw holes 150, the base 15 is provided with a chamber 16, and the bottom of the chamber 16 is provided with a groove 17, and an oil is arranged between the groove 17 and the piston chamber 12. One side of the base 15 is provided with an oil inlet 18, and the oil inlet 18 is provided with an oil inlet 19 obliquely connected to the chamber 16, and the wall of the chamber 16 is embedded There are several anti-leakage gaskets 2, the oil inlet hole 19 is located between the two anti-leakage gaskets 2 in the chamber 16, a compression spring 3 is set in the groove 17, and a thrust piston 4 is set in the The chamber 16 is located above the compression spring 3, the top surface of the thrust piston 4 is set as a beveled surface 40, and an arc-shaped sliding groove 41 is provided on the beveled surface 40, and a fixing seat 5 is arranged on the base 15, the fixing base 5 is screwed on the screw hole 150 of the base 15 by means of several screw fixing elements 50, the fixing base 5 is provided with an arc-shaped guide groove 51, and one end of the fixing base 5 is bent with a The upright part 52 is provided with a link 6 above the fixed seat 5, and a push rod 60 is provided at the bottom of the link 6, and the push rod 60 is installed in the arc-shaped guide groove 51 of the fixed seat 5. The bottom end of the push rod 60 is located in the arc chute 41 of the thrust piston 4, a pivot 61 is arranged between the fixed base 5 and the link 6, and the pivot 61 is screwed by a screw element 62. One of the screw holes 150 provided on the base 15, one end of a tension spring 63 is fixed on the linkage 6, and the other end of the tension spring 63 is fixed on the upright portion 52 of the fixing base 5 Above, a positioning seat 7 is arranged on the fixing seat 5, and a hand brake line 8 is threaded on the positioning seat 7, and the end 80 of the hand brake line 8 is fixed on the linkage member 6 by a fixing piece 81, In this way, it is a caliper structure of an automobile brake.

When assembling, please refer to Fig. 1-Fig. 3, first set the compression spring 3 into the groove 17 of the base 15 of the caliper body 1, and then set the thrust piston 4 into the chamber 16 of the base 15 Inside, push against the piston 4 and pass through several leak-proof gaskets 2 in the chamber 16, the leak-proof gasket 2 is tightly sleeved on the wall surface of the push-off piston 4, and the compression spring 3 and the The thrust piston 4 pushes upwards, so that the thrust piston 4 does not block the oil inlet hole 19, and then the fixing seat 5 is screwed on the base 15 by means of the screw fixing element 50, so that the arc-shaped guide groove on the fixing seat 5 51 is aligned with the arc-shaped chute 41 of the thrust piston 4, and the push rod 60 on the linkage 6 is set in the arc-shaped guide groove 51 of the fixed seat 5, and the bottom end of the push rod 60 is also set in the In the arc-shaped chute 41 of the push piston 4, the push rod 60 is located at the low point on the oblique section 40 of the push piston 4, and the pivot 61 of the linkage 6 is screwed to the bottom of the base 15 by means of the screw element 62. One of the screw holes 150, so that the assembly can be completed.

When in use, please refer to Fig. 4-Fig. 7, when the user steps on the foot brake of the car, the brake master cylinder will push the brake fluid from the oil inlet 18 on the base 15 through the oil inlet 19 to the In the chamber 16 of the base 15, the groove 17 enters each piston chamber 12 through the oil channel 14, and pushes the piston 13 in each piston chamber 12, and then pushes the two brake pads 11 to clamp the disc. The action of A (as shown in Figure 4) forms the effect of the foot brake. When the foot brake is released, the brake oil will flow back to the master cylinder through the oil inlet 19 and the oil inlet 18, and the second brake pad 11 will Go back to the action of releasing the clamp disc A (this is the prior art, so it will not be repeated); and when the user pulls the hand brake, the hand brake line 8 drives the linkage 6 located on the top of the caliper body 1 Actuated, the link 6 then rotates with the pivot 61 as the axis (as shown in Figure 7), and when the link 6 rotates, it drives the tension spring 63 to be in an elastic stretch state, and the link 6 The bottom end of the push rod 60 below moves along the arc-shaped guide groove 51 of the fixed seat 5 and the arc-shaped chute 41 of the thrust piston 4, and the push rod 60 moves from the bottom to the bottom of the arc-shaped chute 41 of the push piston 4. point to the high point (as shown in Figure 5), when the push rod 60 moves to the high point of the thrust piston 4, it will push the thrust piston 4 downward, and the downward movement of the thrust piston 4 will press the compression force below. The spring 3 is in an elastically compressed state, and when the thrust piston 4 moves down, its lower part penetrates into the lowermost leak-proof gasket 2 to block the oil inlet hole 19 of the base 15 (as shown in Figure 5), so that The brake oil cannot flow back through the oil inlet hole 19, and the brake oil in the chamber 16 is pressed downward by the push piston 4, and enters into each piston chamber 12 through the oil channel 14 through the groove 17, and pushes each piston 13 , and then push the two brake pads 11 to clamp disc A to form the parking effect of the hand brake. When the hand brake is released, the tension spring 63 returns elastically, and the linkage 6 and the hand brake The wire 8 is pulled back to the original position, and the push rod 60 under the linkage 6 is pulled back to the low point on the oblique section 40 of the thrust piston 4, and at the same time, the compression spring under the thrust piston 4 3 is also in elastic recovery, pushing the thrust piston 4 upwards back to its original position, and the lower part of the thrust piston 4 is separated from the bottom leak-proof gasket 2 in the chamber 16, so that the oil inlet hole 19 is no longer blocked, and the brake oil is It can flow back to the brake master cylinder from the chamber 16 through the oil inlet 19 and the oil inlet 18, and the second brake pad 11 returns to the action of loosening the clamping disc A. In this way, the present invention directly provides a hand brake on the caliper body 1 The driving structure of the hand brake is used to actuate the hydraulic pressure inside the caliper body 1 and the piston 13 to push the brake pad 11 to perform the function of foot brake or hand brake, which makes the overall structure of the brake system more streamlined and can reduce manufacturing costs. , It is more convenient to operate and use, and the brake and parking are performed by hydraulic actuation, which makes driving safer.

The above description is only illustrative of the present invention, rather than restrictive. Those of ordinary skill in the art understand that many modifications, changes or equivalents can be made without departing from the spirit and scope of the application, but All will fall within the protection scope of the present invention.

Claims (2)

1. a kind of clamp structure of braking automobile, is mainly provided with a caliper body, the disc for wheel is equipped in the caliper body If the card slot entered, two brake blocks are equipped in the card slot, several piston chamber are respectively correspondingly provided on two relative walls of the card slot, respectively should A piston is respectively provided in piston chamber, which can promote brake block folder sincere on the disc of wheel, be set in the caliper body There is asphalt channel, which is connected to the respectively piston chamber；

It is characterized in that：The top of the caliper body is equipped with a pedestal, and the top surface of the pedestal is equipped with several screw holes, which is equipped with One room, the bottom of the room are equipped with a groove, are connected between the groove and the piston chamber equipped with asphalt channel, the pedestal One side is equipped with an oil inlet, be equipped in the oil inlet one be connected to the room enter oilhole, be embedded with number on the wall surface of the room A leak-proof gasket, a compression spring are set in the groove, and one pushes piston in the room and positioned at the compression spring Top, the top surface for pushing piston are set to scarf, which is equipped with an arc chute, and a fixed seat is arranged on the pedestal Top, the fixed seat are fixed at by several bolting elements on the screw hole of the pedestal, which is equipped with an arc guide barrel, the arc Shape guide groove is pushed corresponding to this on the arc chute of piston, which is equipped with a moving part, and the bottom of the moving part is equipped with One push rod, the push rod are arranged in the arc guide barrel of the fixed seat, the bottom of the push rod and the arc cunning that piston is pushed positioned at this In slot, a pivot is equipped between the fixed seat and the moving part, which is arranged on wherein the one of the pedestal by a bolting element spiral shell On screw hole, one end of an extension spring is fixedly arranged on the moving part, and the other end of the extension spring is fixedly arranged in the fixed seat, and one Positioning seat is arranged in the fixed seat, proficiency brake cable is equipped on the positioning seat, the gearing is fixed in the end of the parking brake fare On part.

2. the clamp structure of braking automobile according to claim 1, it is characterised in that：This on pedestal enters oilhole and is located at the appearance Between indoor two leak-proof gaskets.