Novel brake piston

Abstract

The utility model discloses a novel brake piston, and relates to the technical field of brake calipers. The novel brake piston comprises a shell and a liquid injection pipe embedded in the side face of the shell. The piston assembly comprises a piston column arranged on the inner wall of the shell in a sliding mode. And the sealing assembly comprises two first annular sealing grooves symmetrically formed in the outer annular surface of the piston column, and first sealing rings are fixedly arranged on the inner walls of the two first annular sealing grooves. According to the brake piston, the piston assembly and the sealing assembly are arranged, so that in the actual use process of the brake piston, the sealing performance of the piston can be guaranteed under the action of the first annular sealing groove, the first sealing ring, the second annular sealing groove and the second sealing ring, and after oil enters the fixing cylinder, the oil is prevented from flowing into the fixing cylinder. And the small PLC automatically controls the alarm to give an alarm, so that the automobile control system can inquire the leakage condition in the first time, and the driving safety is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of brake calipers, and specifically relates to a novel brake piston. Background Technique

[0002] The brake piston, also known as the braking piston, is an important component in the braking system. Its function is to convert the force of the brake pedal into braking force to achieve the deceleration and stopping of the vehicle. There is an existing patent for a novel brake piston, with the patent publication number CN210318275U, which includes a brake caliper, a piston, a sealing mechanism, and a positioning mechanism; the left surface of the brake caliper is installed with a mounting cover through mounting studs, a sealing gasket is provided between the mounting cover and the brake caliper, and a connecting pipe is provided on the mounting cover; the piston is arranged in the sliding hole of the brake caliper, a fixed disk is provided at one end of the piston located in the brake caliper chamber, and a limiting ring is provided at the other end of the piston; the sealing mechanism is arranged in the sliding hole of the brake caliper; the positioning mechanism is installed on the piston and connected to the brake caliper; this novel brake piston can improve the sealing performance, prevent dust from entering and the leakage of brake fluid, and the piston can be self-reset, with relatively high use safety.

[0003] Regarding the above related technologies, the inventor believes that there are the following defects: during the actual use of this brake piston, it is only sealed by the sealing ring arranged inside the brake caliper, resulting in poor sealing performance, and it cannot give an alarm in the first time when leakage occurs. At the same time, the leaked oil will enter the surface of the forklift disk, thus affecting the braking effect of the vehicle.

[0004] Therefore, we propose a novel brake piston to solve the above existing problems. Content of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the utility model provides a novel brake piston, which solves the problems of poor sealing performance, easy leakage, and inability to give an alarm.

[0006] To achieve the above purposes, the utility model is realized through the following technical solutions: a novel brake piston, including,

[0007] A housing and a liquid injection pipe embedded in the side of the housing;

[0008] A piston assembly, the piston assembly includes a piston rod slidably arranged on the inner wall of the housing, the inner wall of the housing is provided with four cylindrical channels in a circumferential array, and a piston rod is slidably arranged on the inner wall of the cylindrical channel, and the ends of the four piston rods are fixedly connected to the surface of the piston column;

[0009] A sealing assembly, the sealing assembly includes two first annular sealing grooves symmetrically opened on the outer circumferential surface of the piston column, and first sealing rings are fixedly arranged on the inner walls of the two first annular sealing grooves;

[0010] An alarm component, which is used to give an alarm when there is an oil leak. The alarm component includes an oil sensor, a small PLC controller and an alarm.

[0011] Preferably, the sealing component further includes three second annular sealing grooves equidistantly opened on the outer surface of the piston rod, and second sealing rings are fixedly arranged on the inner walls of the three second annular sealing grooves.

[0012] Preferably, a return spring is sleeved on the outer surface of the piston rod, and both ends of the return spring are fixedly connected to the inner side wall of the housing and the outer surface of the piston column respectively.

[0013] Preferably, a fixed cylinder corresponding to the piston rod is fixedly arranged on the outer side surface of the housing, and an installation box is fixedly arranged on the outer surface of the fixed cylinder.

[0014] Preferably, the fixed cylinder is sleeved on the outer surface of the piston rod, and a sliding hole slidably connected to the outer surface of the piston rod is opened on the side surface of the fixed cylinder.

[0015] Preferably, the oil sensor is fixedly arranged on the inner ring surface of the fixed cylinder, the small PLC controller and the alarm are both fixedly arranged inside the installation box, the oil sensor and the alarm are both electrically connected to the small PLC controller through wires, and the alarm is electrically connected to the vehicle control system.

[0016] Preferably, a conical sealing sleeve is arranged on the outer surface of the end of the fixed cylinder. The material of the conical sealing sleeve is elastic waterproof cloth. One end of the conical sealing sleeve is fixedly connected to the side surface of the fixed cylinder, and the other end of the conical sealing sleeve is fixedly connected to the outer surface of the piston rod.

[0017] Beneficial effects

[0018] The present utility model provides a novel brake piston. Compared with the prior art, the following beneficial effects are achieved:

[0019] In the novel brake piston, by arranging the piston assembly and the sealing component, during the actual use of the brake piston, the sealing performance of the piston can be ensured under the action of the first annular sealing groove and the first sealing ring, the second annular sealing groove and the second sealing ring. When the oil enters the inside of the fixed cylinder, the small PLC controller automatically controls the alarm to give an alarm, so that the vehicle control system can query the leakage situation in the first time, ensuring the safety of driving. Description of the drawings

[0020] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0021] Figure 2 is a sectional structural schematic diagram of the present utility model;

[0022] Figure 3 For the present utility model Figure 2 Schematic enlarged view of the structure at position A in

[0023] Figure 4 For the present utility model Figure 2 Schematic enlarged view of the structure at position B in

[0024] In the figure:

[0025] 100, housing; 101, liquid injection pipe;

[0026] 200, piston assembly; 201, piston rod; 202, cylindrical channel; 203, piston rod; 204, return spring;

[0027] 300, sealing assembly; 301, first annular sealing groove; 302, first sealing ring; 303, second annular sealing groove; 304, second sealing ring;

[0028] 400, alarm assembly; 401, oil level sensor; 402, small PLC controller; 403, alarm; 404, fixed cylinder; 405, mounting box; 406, conical sealing sleeve. Specific embodiments

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0030] Embodiment 1

[0031] Please refer to Figures 1-4 , the present utility model provides a technical solution: a new type of brake piston, including,

[0032] A housing 100 and a liquid injection pipe 101 embedded in the side of the housing 100;

[0033] A piston assembly 200, the piston assembly 200 includes a piston rod 201 slidably disposed on the inner wall of the housing 100, the inner wall of the housing 100 is provided with four cylindrical channels 202 in a circumferential array, and a piston rod 203 is slidably disposed on the inner wall of the cylindrical channel 202, and the ends of the four piston rods 203 are fixedly connected to the surface of the piston rod 201;

[0034] A return spring 204 is sleeved on the outer surface of the piston rod 203, and the two ends of the return spring 204 are respectively fixedly connected to the inner side wall of the housing 100 and the outer surface of the piston rod 201.

[0035] The sealing assembly 300 includes two first annular sealing grooves 301 symmetrically formed on the outer circumferential surface of the piston rod 201, and first sealing rings 302 are fixedly provided on the inner walls of the two first annular sealing grooves 301;

[0036] The sealing assembly 300 further includes three second annular sealing grooves 303 equidistantly formed on the outer surface of the piston rod 203, and second sealing rings 304 are fixedly provided on the inner walls of the three second annular sealing grooves 303.

[0037] In this embodiment, by providing the piston assembly 200 and the sealing assembly 300, during the actual use of the brake piston, the sealing performance of the piston is ensured under the action of the first annular sealing groove 301 and the first sealing ring 302, and the second annular sealing groove 303 and the second sealing ring 304, thereby ensuring the stability of the braking.

[0038] Embodiment 2

[0039] On the basis of Embodiment 1 and different from Embodiment 1,

[0040] A new type of brake piston further includes,

[0041] An alarm assembly 400, which is used to give an alarm when oil leaks. The alarm assembly 400 includes an oil sensor 401, a small PLC controller 402 and an alarm 403.

[0042] A fixing cylinder 404 corresponding to the piston rod 203 is fixedly provided on the outer surface of the housing 100, and a mounting box 405 is fixedly provided on the outer surface of the fixing cylinder 404.

[0043] The fixing cylinder 404 is sleeved on the outer surface of the piston rod 203, and a sliding hole slidably connected to the outer surface of the piston rod 203 is formed on the side surface of the fixing cylinder 404.

[0044] The oil sensor 401 is fixedly provided on the inner circumferential surface of the fixing cylinder 404. The small PLC controller 402 and the alarm 403 are both fixedly provided inside the mounting box 405. The oil sensor 401 and the alarm 403 are both electrically connected to the small PLC controller 402 through wires, and the alarm 403 is electrically connected to the vehicle control system.

[0045] A conical sealing sleeve 406 is provided on the outer surface of the end of the fixing cylinder 404. The material of the conical sealing sleeve 406 is elastic waterproof cloth. One end of the conical sealing sleeve 406 is fixedly connected to the side surface of the fixing cylinder 404, and the other end of the conical sealing sleeve 406 is fixedly connected to the outer surface of the piston rod 203.

[0046] In this embodiment, by setting the alarm component 400, when both the first sealing ring 302 and the second sealing ring 304 fail, the vehicle control system can immediately detect the leakage situation and transmit it to the driver through the vehicle dashboard, facilitating the personnel to repair it immediately and ensuring driving safety.

[0047] During operation, in the actual use process, the brake piston can achieve the sealing performance when the piston rod 201 slides on the inner wall of the housing 100 under the action of the first annular sealing groove 301 and the first sealing ring 302. At the same time, when the first sealing ring 302 is damaged and leaks, the sealing performance when the piston rod 203 slides in the cylindrical channel 202 can be ensured under the action of the three second annular sealing grooves 303 and the second sealing ring 304, further ensuring the sealing performance of the piston. Meanwhile, under the action of the return spring 204, the four piston rods 203 and the piston column 201 have good return performance. Moreover, the arrangement of the piston column 201 and the four piston rods 203 enables the piston to have a stable thrust, so that the brake pads can stably contact the vehicle brake disc, ensuring the stability of braking. And when both the first sealing ring 302 and the second sealing ring 304 fail, the leaked oil can enter the fixed cylinder 404 and the conical sealing sleeve 406, effectively preventing the oil from leaking onto the surface of the brake pads and ensuring the braking performance. Moreover, when the oil enters the fixed cylinder 404, the oil sensor 401 inside the fixed cylinder 404 transmits a signal to the small PLC controller 402, and the small PLC controller 402 automatically controls the alarm 403 to give an alarm, so that the vehicle control system can immediately detect the leakage situation and transmit it to the driver through the vehicle dashboard, facilitating the personnel to repair it immediately and ensuring driving safety.

[0048] Meanwhile, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

Claims

1. A new type of brake piston, characterized in that: include, A housing (100) and a liquid injection pipe (101) embedded in a side surface of the housing (100); A piston assembly (200), the piston assembly (200) comprising a piston column (201) slidably arranged on the inner wall of a housing (100), the inner wall of the housing (100) being provided with four columnar channels (202) in a circumferential array, and a piston rod (203) being slidably arranged on the inner wall of the columnar channel (202), and the ends of the four piston rods (203) being fixedly connected to the surface of the piston column (201); A sealing assembly (300), the sealing assembly (300) comprising two first annular sealing grooves (301) symmetrically arranged on the outer annular surface of the piston column (201), and first sealing rings (302) are fixedly arranged on the inner walls of the two first annular sealing grooves (301); An alarm component (400) is used to give an alarm when oil leaks. The alarm component (400) comprises an oil sensor (401), a small PLC controller (402) and an alarm (403).

2. A novel brake piston according to claim 1, characterized in that: The sealing assembly (300) further comprises three second annular sealing grooves (303) equidistantly arranged on the outer surface of the piston rod (203), and the inner walls of the three second annular sealing grooves (303) are all fixedly provided with second sealing rings (304).

3. A novel brake piston according to claim 1, characterized in that: The outer surface of the piston rod (203) is sleeved with a return spring (204), and the two ends of the return spring (204) are respectively fixedly connected to the inner side wall of the housing (100) and the outer surface of the piston column (201).

4. A novel brake piston according to claim 1, characterized in that: A fixing cylinder (404) corresponding to the piston rod (203) is fixedly provided on the outer surface of the housing (100), and a mounting box (405) is fixedly provided on the outer surface of the fixing cylinder (404).

5. A novel brake piston according to claim 4, characterized in that: The fixing cylinder (404) is sleeved on the outer surface of the piston rod (203), and a sliding hole is provided on the side surface of the fixing cylinder (404) and is slidably connected to the outer surface of the piston rod (203).

6. A novel brake piston according to claim 5, characterized in that: The oil sensor (401) is fixedly mounted on the inner ring surface of the fixing cylinder (404), and the small PLC controller (402) and the alarm (403) are both fixedly mounted inside the mounting box (405). The oil sensor (401) and the alarm (403) are both electrically connected to the small PLC controller (402) via wires, and the alarm (403) is electrically connected to the vehicle control system.

7. A novel brake piston according to claim 6, characterized in that: A conical sealing sleeve (406) is provided on the outer surface of the end of the fixed cylinder (404). The material of the conical sealing sleeve (406) is elastic waterproof cloth. One end of the conical sealing sleeve (406) is fixedly connected to the side of the fixed cylinder (404), and the other end of the conical sealing sleeve (406) is fixedly connected to the outer surface of the piston rod (203).

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