Automobile brake clearance adjusting device

Abstract

The utility model discloses an automobile brake clearance adjusting device, which relates to the technical field of automobile brake, and comprises a caliper body, a cylinder sleeve is fixedly mounted in the caliper body, a brake pad is arranged at the front end of the cylinder sleeve, a brake oil pipe is connected onto the cylinder sleeve, an adjusting mechanism is arranged in the cylinder sleeve, and the brake oil pipe is connected with the brake pad. The adjusting mechanism comprises a piston rod installed in the cylinder sleeve in a sliding mode, an adjusting piston is installed in the piston rod in a sliding mode, an adjusting ejector rod is fixedly installed on the adjusting piston, the tail end of the adjusting ejector rod is fixedly installed on the brake pad, a prompting mechanism is arranged on the edge of the piston rod, and an adjusting sliding groove is formed in the piston rod. According to the automobile brake clearance adjusting device, the adjusting mechanism can adjust the distance between the brake pad and the brake disc, the problem of automobile brake lag caused by the fact that the clearance between the brake pad and the brake disc cannot be adjusted is effectively solved, and the prompting mechanism can prompt a user to replace the brake pad in time when the brake pad is seriously abraded.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile brake, specifically is automobile brake clearance adjusting device. BACKGROUND

[0002] Automobile disc brake, also known as disc brake, is a kind of high-efficiency brake system. It is composed of brake disc and brake caliper on the edge of disc, and brake effect is generated by high-pressure brake oil pushing brake block to clamp brake disc. Automobile disc brake has good heat dissipation, can effectively prevent brake overheating caused by long-time braking, and improves driving safety. And it reacts quickly, can quickly respond to brake signal, is suitable for high-frequency brake action, and meets the demand of ABS system. At the same time, it has strong adaptability and can maintain excellent braking performance under various weather conditions, and is not affected by water or silt.

[0003] During driving, the driver often needs to use the disc brake system frequently to slow down or stop. With the increase of use times, the brake pad in the disc brake system will gradually wear out. Due to this wear, the gap between the brake pad and the brake disc of the automobile will gradually increase. The increase of this gap may cause brake response lag, that is, when the driver steps on the brake pedal, the braking system of the vehicle cannot respond immediately, thus requiring a longer time to slow down or stop. This brake lag phenomenon may pose a hidden danger to driving safety, because it reduces the driver's control ability over the vehicle, and in an emergency, may cause the vehicle to fail to stop in time, thus causing traffic accidents, and even may cause serious consequences. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing automobile brake clearance adjusting device to solve the problem of brake response lag in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: automobile brake clearance adjusting device, including caliper body, the caliper body is fixedly installed with cylinder sleeve, the cylinder sleeve front end is equipped with brake pad, the cylinder sleeve is connected with brake oil pipe, the cylinder sleeve is equipped with adjusting mechanism, the adjusting mechanism includes piston rod that slides and installs in the cylinder sleeve, the piston rod is slidably installed with adjusting piston, the adjusting piston is fixedly installed with adjusting top rod, the adjusting top rod tail end is fixedly installed on the brake pad, the piston rod edge is equipped with prompt mechanism.

[0006] Preferably, the piston rod is provided with an adjusting sliding groove, a first oil groove is arranged above the adjusting sliding groove, a second oil groove is arranged below the adjusting sliding groove, and the first oil groove and the second oil groove are connected with adjusting oil pipes.

[0007] Preferably, the brake pad is provided with a mounting groove, and the tail end of the adjusting top rod is mounted on the brake pad through the mounting groove.

[0008] Preferably, the piston rod is movably installed in the caliper body through a cylinder sleeve, the adjusting piston is movably installed in the piston rod through an adjusting slot, the adjusting top rod is movably installed in the piston rod through the adjusting piston, and the length of the adjusting top rod is equal to the thickness of the brake pad, and the adjusting oil pipe is communicated with the adjusting slot through the first oil groove and the second oil groove respectively.

[0009] Preferably, the prompting mechanism comprises a battery compartment fixedly installed on the piston rod, an alarm fixedly installed at the front end of the battery compartment, a button cell arranged in the battery compartment, a metal sheet arranged at the negative pole of the button cell, a negative pole lead wire arranged between the metal sheet and the alarm, a positive pole lead wire of the alarm connected to the positive pole of the button cell, an insulating gasket arranged between the negative pole of the button cell and the metal sheet, and a pull cable arranged on the insulating gasket.

[0010] Preferably, an inlet and outlet are arranged on the battery compartment, and the insulating gasket extends into the battery compartment through the inlet and outlet.

[0011] Preferably, one end of the pull cable is fixedly installed on the insulating gasket, the other end of the pull cable is fixedly installed at the tail end of the adjusting top rod, an installation groove is arranged on the piston rod, and the battery compartment is installed on the piston rod through the installation groove.

[0012] Compared with the prior art, the application has the following beneficial effects:

[0013] 1. In the application, the hydraulic oil is injected into the rear part of the adjusting slot through the first oil groove, and the hydraulic oil in the front part of the adjusting slot is discharged through the second oil groove, so that the advancing action of the adjusting top rod is realized. During the advancing process of the adjusting top rod, the brake pad is driven to move forward synchronously, so that the gap between the brake pad and the brake disc is adjusted, and the consistency of the forward and backward strokes of the piston rod is ensured. The mechanism effectively prevents the automobile braking lag phenomenon caused by the unadjustable gap between the brake pad and the brake disc.

[0014] 2. In the application, the displacement of one end of the pull cable is caused during the stretching process of the adjusting top rod. When the adjusting top rod reaches the fully stretched state, the pull cable causes the insulating gasket to be separated from the battery compartment. Once the insulating gasket is separated from the battery compartment, the button cell is in contact with the metal sheet, so that the alarm power is activated in the case of excessive wear of the brake pad, and the user is warned to replace the severely worn brake pad. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the application;

[0016] Figure 2 It is a schematic diagram of the local structure of the application;

[0017] Figure 3 The adjusting mechanism of the utility model is a schematic view.

[0018] Figure 4 The prompt mechanism of the utility model is a schematic view.

[0019] The figure mark: 1, caliper body; 2, brake pad; 3, cylinder sleeve; 4, brake oil pipe; 5, adjusting mechanism; 501, piston rod; 502, first oil channel groove; 503, adjusting oil pipe; 504, adjusting top rod; 505, second oil channel groove; 506, adjusting piston; 507, adjusting sliding slot; 6, prompt mechanism; 601, battery compartment; 602, alarm; 603, button cell; 604, negative electrode wire; 605, metal sheet; 606, insulating gasket; 607, cable. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0021] As shown in Figure 1 and Figure 2 The utility model provides automobile brake clearance adjusting device's technical scheme, including caliper body 1, the fixed mounting of caliper body 1 has cylinder sleeve 3, and the front end of cylinder sleeve 3 is equipped with brake pad 2, and cylinder sleeve 3 is connected with brake oil pipe 4, and cylinder sleeve 3 is equipped with adjusting mechanism 5, and the edge of piston rod 501 is equipped with prompt mechanism 6, and adjusting mechanism 5 can adjust the distance between brake pad 2 and brake disc, effectively avoid the problem of automobile brake lag caused by the gap between brake pad 2 and brake disc cannot be adjusted, and prompt mechanism 6 can prompt the user to replace when brake pad 2 is seriously worn.

[0022] As shown in Figure 2 and Figure 3 Adjusting mechanism 5 includes piston rod 501 slidingly installed in cylinder sleeve 3, adjusting piston 506 slidingly installed in piston rod 501, adjusting top rod 504 fixedly installed on adjusting piston 506, adjusting top rod 504 fixedly installed on brake pad 2 at the tail end, adjusting sliding slot 507 is formed in piston rod 501, first oil channel groove 502 is arranged above adjusting sliding slot 507, second oil channel groove 505 is arranged below adjusting sliding slot 507, adjusting oil pipe 503 is connected to first oil channel groove 502 and second oil channel groove 505, mounting groove is formed in brake pad 2, and the tail end of adjusting top rod 504 is installed on brake pad 2 through the mounting groove.

[0023] Specifically, by injecting hydraulic oil into the first oil groove 502 to the rear of the adjusting slot 507, and discharging hydraulic oil from the second oil groove 505 to the front of the adjusting slot 507, the advancing action of the adjusting plunger 504 is realized. When the adjusting plunger 504 advances, it will push the brake pad 2 to move forward, thereby adjusting the distance between the brake pad 2 and the brake disc, ensuring the consistency of the forward and backward strokes of the piston rod 501, effectively avoiding the problem of automobile brake lag caused by the inability to adjust the gap between the brake pad 2 and the brake disc.

[0024] As shown in Figure 2 and Figure 4 The prompting mechanism 6 includes a battery compartment 601 fixedly installed on the piston rod 501, an alarm 602 fixedly installed at the front end of the battery compartment 601, a button cell 603 arranged in the battery compartment 601, a metal sheet 605 arranged at the negative electrode of the button cell 603, a negative electrode lead 604 arranged between the metal sheet 605 and the alarm 602, a positive electrode lead of the alarm 602 connected to the positive electrode of the button cell 603, an insulating gasket 606 arranged between the negative electrode of the button cell 603 and the metal sheet 605, a drawstring 607 arranged on the insulating gasket 606, and an inlet and outlet formed in the battery compartment 601, the insulating gasket 606 extending into the battery compartment 601 through the inlet and outlet.

[0025] Specifically, when the adjusting plunger 504 is completely extended, it indicates that the brake pad 2 has reached a serious degree of wear. During the extension of the adjusting plunger 504, it will pull one end of the drawstring 607 to move. Once the adjusting plunger 504 reaches the completely extended state, the drawstring 607 will exert force, causing the insulating gasket 606 to be separated from the battery compartment 601. Once the insulating gasket 606 is separated from the battery compartment 601, the button cell 603 will directly contact the metal sheet 605. This direct contact will immediately activate the power supply of the alarm 602, thereby sending a clear signal to the user that they need to replace the brake pad 2 that has been seriously worn out.

[0026] Working principle: when in use, brake oil can be injected into the cylinder sleeve 3 through the brake oil pipe 4, after the brake oil is injected into the cylinder sleeve 3, the brake oil will extrude the piston rod 501 to move forward, after the piston rod 501 moves forward, it will drive the brake pad 2 to move forward and abut against the surface of the brake disc, so as to realize the braking of the vehicle. After the brake pad 2 is worn, the stroke of the piston rod 501 will become longer, resulting in brake lag. At this time, hydraulic oil can be injected into the rear of the adjusting sliding groove 507 through the first oil groove 502, and hydraulic oil in the front of the adjusting sliding groove 507 is discharged through the second oil groove 505, so as to realize the forward movement of the adjusting jack 504, when the adjusting jack 504 moves forward, it will drive the brake pad 2 to move forward, so as to adjust the distance between the brake pad 2 and the brake disc, ensure the consistency of the forward and backward strokes of the piston rod 501, and effectively avoid the problem of brake lag caused by the unadjustable gap between the brake pad 2 and the brake disc. At the same time, when the adjusting jack 504 is fully extended, it means that the brake pad 2 is seriously worn. The adjusting jack 504 will move one end of the pull rope 607 during the extension process, and when the adjusting jack 504 is fully extended, the pull rope 607 will pull the insulating pad 606 away from the battery compartment 601, and after the insulating pad 606 is separated from the battery compartment 601, the button cell 603 will contact the metal sheet 605, so as to connect the power supply of the alarm 602 when the brake pad 2 is seriously worn, prompting the user to replace the seriously worn brake pad 2.

[0027] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A vehicle brake clearance adjustment device, comprising a caliper body (1), wherein a cylinder liner (3) is fixedly installed inside the caliper body (1), a brake pad (2) is provided at the front end of the cylinder liner (3), and a brake oil pipe (4) is connected to the cylinder liner (3), characterized in that: The cylinder liner (3) is provided with an adjustment mechanism (5). The adjustment mechanism (5) includes a piston rod (501) slidably installed in the cylinder liner (3). An adjustment piston (506) is slidably installed in the piston rod (501). An adjustment push rod (504) is fixedly installed on the adjustment piston (506). The end of the adjustment push rod (504) is fixedly installed on the brake pad (2). A prompting mechanism (6) is provided at the edge of the piston rod (501).

2. The automotive brake clearance adjustment device according to claim 1, characterized in that: The piston rod (501) is provided with an adjustment groove (507), a first oil passage groove (502) is provided above the adjustment groove (507), and a second oil passage groove (505) is provided below the adjustment groove (507). Adjustment oil pipes (503) are connected to both the first oil passage groove (502) and the second oil passage groove (505).

3. The automotive brake clearance adjustment device according to claim 2, characterized in that: The brake pad (2) has an installation groove, and the end of the adjusting rod (504) is installed on the brake pad (2) through the installation groove.

4. The automotive brake clearance adjustment device according to claim 3, characterized in that: The piston rod (501) is movably installed in the caliper body (1) through the cylinder liner (3). The adjusting piston (506) is movably installed in the piston rod (501) through the adjusting slide (507). The adjusting push rod (504) is movably installed in the piston rod (501) through the adjusting piston (506), and the length of the adjusting push rod (504) is equal to the thickness of the brake pad (2). The adjusting oil pipe (503) is connected to the adjusting slide (507) through the first oil passage groove (502) and the second oil passage groove (505) respectively.

5. The automotive brake clearance adjustment device according to claim 4, characterized in that: The prompting mechanism (6) includes a battery compartment (601) fixedly installed on the piston rod (501). An alarm (602) is fixedly installed at the front end of the battery compartment (601). A button battery (603) is provided inside the battery compartment (601). A metal piece (605) is provided at the negative terminal of the button battery (603). A negative wire (604) is provided between the metal piece (605) and the alarm (602). The positive wire of the alarm (602) is connected to the positive terminal of the button battery (603). An insulating pad (606) is provided between the negative terminal of the button battery (603) and the metal piece (605). A pull cable (607) is provided on the insulating pad (606).

6. The automotive brake clearance adjustment device according to claim 5, characterized in that: The battery compartment (601) is provided with an inlet and outlet, and the insulating pad (606) extends into the battery compartment (601) through the inlet and outlet.

7. The automotive brake clearance adjustment device according to claim 6, characterized in that: One end of the cable (607) is fixedly installed on the insulating pad (606), and the other end of the cable (607) is fixedly installed at the end of the adjusting rod (504). The piston rod (501) has an installation groove, and the battery compartment (601) is installed on the piston rod (501) through the installation groove.

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