A front disc brake failure protection device

Abstract

The utility model relates to the technical field of automobile brake, provide a front disc brake failure protection device, including protection structure: protection structure coaxial installation in the outside of main part structure, with and main part structure's brake executing component linkage cooperation, main part structure: main part structure includes brake disc, brake caliper, main brake pipeline, main cylinder, fixed plate and mounting seat, brake caliper fixedly connected in the outside of brake disc, fixed plate fixedly connected in the outside wall of brake caliper, the utility model discloses a protection structure is set up, through pressure sensor and displacement sensor between auxiliary cooperation, can make controller synchronous issue instruction, can make electromagnetic lock unlock, electric push rod energized and extend, and make controller control electric push rod shrink, and electromagnetic lock relock spare brake block to initial position, when auxiliary cylinder pressure relief, protection structure recovers the state of readiness, when the front disc brake system failure, can provide emergency protection, improve brake reliability simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of automotive braking technology, and in particular to a front disc brake failure protection device. Background Technology

[0002] Front disc brakes are a core component of a car's braking system. They use brake calipers to clamp the rotating brake discs to generate friction, thereby slowing down or stopping the vehicle.

[0003] Some vehicles rely solely on the handbrake for emergency braking, but its braking efficiency is low and its response is slow, making it only suitable for low-speed conditions. A few vehicles equipped with mechanical backup brakes have problems such as delayed backup brake intervention and limited triggering conditions, making it impossible to monitor the status of the main braking system in real time. Furthermore, the backup brake pads have poor contact with the brake discs, which can easily lead to brake deviation and uneven wear, making it difficult to meet the emergency braking needs at high speeds. Utility Model Content

[0004] The purpose of this invention is to provide a front disc brake failure protection device to solve the defects of insufficient emergency protection, delayed response and low braking reliability in the event of failure of the existing front disc brake system.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a front disc brake failure protection device, comprising a main structure;

[0006] Protective structure: The protective structure is coaxially mounted on the outside of the main structure and is linked and cooperates with the braking actuator of the main structure;

[0007] Main structure: The main structure includes brake disc, brake caliper, main brake line, master cylinder, mounting plate and mounting base;

[0008] The brake caliper is fixedly connected to the outside of the brake disc, the fixing plate is fixedly connected to the outer wall of the brake caliper, the mounting base is fixedly connected to the side of the fixing plate away from the brake caliper, one end of the main brake line passes through and communicates with the piston chamber of the brake caliper, and the master cylinder is fixedly connected to one end of the main brake line.

[0009] Protection structure: The protection structure includes a pressure sensor, a displacement sensor, a controller, an electric push rod, a spare brake block, and an auxiliary cylinder;

[0010] The pressure sensor is fixedly connected to the inner wall of the main brake line, the displacement sensor is fixedly connected to the piston extension end of the brake caliper, the controller is fixedly connected to the top of the mounting base, the electric push rod is fixedly connected to the inner side of the mounting base, the spare brake block is fixedly connected to the output end of the electric push rod, and the auxiliary cylinder is fixedly connected to the rear of the mounting base.

[0011] Preferably, the protection structure further includes an electromagnetic lock, a backup pipeline, and a signal amplifier;

[0012] The electromagnetic lock is fixedly connected between the electric push rod and the backup brake block, the signal amplifier is fixedly connected between the pressure sensor, the displacement sensor and the controller, and the backup pipeline is fixedly connected to one end of the auxiliary cylinder.

[0013] Preferably, the friction surface of the spare brake block is parallel to the end face of the brake disc, and the friction area of ​​the spare brake block is not less than 80% of that of the main brake block of the brake caliper.

[0014] Preferably, guide grooves are provided on both sides of the inner wall of the mounting base, and the outer wall of the electric push rod is slidably connected to the guide grooves.

[0015] Preferably, the main structure further includes heat sinks and a dust cover;

[0016] The heat sink is fixedly connected to the outer wall of the brake caliper, and the dust cover is fixedly connected to the outer side of the mounting base, covering the outside of the protective structure.

[0017] Preferably, it also includes auxiliary structures;

[0018] The auxiliary structure includes a sliding groove, a magnetic sheet, an iron block, and a mounting plate;

[0019] The slide groove is located on the outer front end of the mounting base. The magnetic sheet is fixedly connected to the upper inner side of the slide groove. The mounting plate is slidably connected to the inside of the mounting base. The iron block is fixedly connected to one end of the mounting plate.

[0020] Preferably, the auxiliary structure further includes mounting holes and guide blocks;

[0021] The mounting hole is opened inside the mounting plate, and the guide block is fixedly connected to one end of the mounting plate.

[0022] The front disc brake failure protection device provided by this utility model has the following advantages:

[0023] This invention, through the setting of a protective structure and the auxiliary cooperation between pressure and displacement sensors, enables the controller to issue commands synchronously, which can unlock the electromagnetic lock, extend the electric push rod, and cause the controller to control the electric push rod to retract. The electromagnetic lock then relocks the spare brake block to its initial position. When the auxiliary cylinder is depressurized, the protective structure returns to standby mode. When the front disc brake system fails, it can provide emergency protection and improve braking reliability.

[0024] Based on the above-mentioned beneficial effects, an auxiliary structure is provided. Through the auxiliary cooperation between the sliding groove and the magnetic plate, the mounting plate can be driven to slide while the iron block is sliding, and the magnetic plate and the iron block can be magnetically connected. This can increase the installation flexibility of the protection device, thereby increasing the adaptability of the protection device. Attached Figure Description

[0025] Figure 1 This is an axonometric view of the present invention;

[0026] Figure 2 This is a three-dimensional schematic diagram of the protective structure of this utility model;

[0027] Figure 3 This is another isometric view of the present invention;

[0028] Figure 4 This is a three-dimensional schematic diagram of the auxiliary structure of this utility model;

[0029] Figure 5 This is a three-dimensional schematic diagram of the mounting plate of this utility model.

[0030] Explanation of the reference numerals in the figure:

[0031] 11. Brake disc; 12. Brake caliper; 13. Main brake line; 14. Master cylinder; 15. Mounting plate; 16. Mounting bracket; 17. Heat sink; 18. Dust cover;

[0032] 21. Pressure sensor; 22. Displacement sensor; 23. Controller; 24. Electric actuator; 25. Backup brake block; 26. Auxiliary cylinder; 27. Electromagnetic lock; 28. Backup pipeline; 29. ​​Signal amplifier;

[0033] 31. Slide groove; 32. Magnetic sheet; 33. Iron block; 34. Mounting plate; 35. Mounting hole; 36. Guide block. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Please see Figures 1-5 The present invention provides a front disc brake failure protection device, comprising a main structure;

[0036] Protective structure: The protective structure is coaxially mounted on the outside of the main structure and works in conjunction with the braking actuator of the main structure;

[0037] Main structure: The main structure includes brake disc 11, brake caliper 12, main brake line 13, master cylinder 14, fixing plate 15 and mounting base 16;

[0038] The brake caliper 12 is fixedly connected to the outside of the brake disc 11, the fixing plate 15 is fixedly connected to the outer wall of the brake caliper 12, the mounting base 16 is fixedly connected to the side of the fixing plate 15 away from the brake caliper 12, one end of the main brake line 13 passes through and communicates with the piston chamber of the brake caliper 12, and the master cylinder 14 is fixedly connected to one end of the main brake line 13.

[0039] The main structure also includes a heat sink 17 and a dust cover 18;

[0040] The heat sink 17 is fixedly connected to the outer side wall of the brake caliper 12, and the dust cover 18 is fixedly connected to the outer side of the mounting base 16, covering the outside of the protective structure.

[0041] When the vehicle is braking normally, the driver presses the brake pedal, and the master cylinder 14 delivers brake fluid or air pressure to the piston chamber of the brake caliper 12 through the master brake line 13, pushing the master brake block to clamp the brake disc 11 and achieve deceleration.

[0042] Protection structure: The protection structure includes pressure sensor 21, displacement sensor 22, controller 23, electric push rod 24, spare brake block 25 and auxiliary cylinder 26;

[0043] Pressure sensor 21 is fixedly connected to the inner wall of main brake line 13, displacement sensor 22 is fixedly connected to the piston extension end of brake caliper 12, controller 23 is fixedly connected to the top of mounting base 16, electric push rod 24 is fixedly connected to the inner side of mounting base 16, spare brake block 25 is fixedly connected to the output end of electric push rod 24, and auxiliary cylinder 26 is fixedly connected to the rear of mounting base 16.

[0044] The protective structure also includes an electromagnetic lock 27, a backup conduit 28, and a signal amplifier 29;

[0045] Electromagnetic lock 27 is fixedly connected between electric push rod 24 and spare brake block 25; signal amplifier 29 is fixedly connected between pressure sensor 21, displacement sensor 22 and controller 23; spare pipeline 28 is fixedly connected to one end of auxiliary cylinder 26.

[0046] The auxiliary cylinder 26 is used to provide auxiliary driving force for the spare brake block 25. The spare brake block 25 is fixedly connected to the output end of the electric push rod 24 and is set in correspondence with the brake disc 11. The output end of the electric push rod 24 faces the brake disc 11. The displacement sensor 22 is used to monitor the piston braking stroke of the brake caliper 12.

[0047] With the auxiliary cooperation between pressure sensor 21 and displacement sensor 22, controller 23 can issue commands synchronously to unlock electromagnetic lock 27, extend electric push rod 24, and cause controller 23 to control electric push rod 24 to retract. Electromagnetic lock 27 relocks spare brake block 25 to the initial position. When auxiliary cylinder 26 is depressurized, the protection structure returns to standby state.

[0048] Working principle: When the main braking system malfunctions;

[0049] First, when the pressure sensor 21 detects a sudden drop in pressure in the main brake line 13 or the displacement sensor 22 detects that the piston has not reached the required braking stroke, the signal is amplified by the signal amplifier 29 and transmitted to the controller 23, causing the controller 23 to issue a command synchronously, which can unlock the electromagnetic lock 27, energize the electric push rod 24 to extend, and push the spare brake block 25 to move towards the brake disc 11. At the same time, the auxiliary cylinder 26 supplies oil to the cavity of the spare brake block 25 through the spare line 28 to enhance the clamping force of the spare brake block 25.

[0050] Next, under the coordinated drive of the electric push rod 24 and the auxiliary cylinder 26, the spare brake block 25 tightly adheres to the brake disc 11, and the vehicle decelerates through friction until it stops. When the main braking system fault is cleared, the driver issues a reset command through the vehicle control terminal. The controller 23 controls the electric push rod 24 to retract, and the electromagnetic lock 27 relocks the spare brake block 25 to the initial position. When the auxiliary cylinder 26 is depressurized, the protection structure returns to the standby state.

[0051] This step provides emergency protection in the event of a failure in the front disc braking system, while also improving braking reliability.

[0052] Please see Figure 4-5 As shown, this embodiment, based on the above embodiment, also includes an auxiliary structure;

[0053] The auxiliary structure includes a slide 31, a magnetic sheet 32, an iron block 33, and a mounting plate 34;

[0054] The slide groove 31 is formed on the outer front end of the mounting base 16, the magnetic sheet 32 ​​is fixedly connected to the upper inner side of the slide groove 31, the mounting plate 34 is slidably connected to the inside of the mounting base 16, and the iron block 33 is fixedly connected to one end of the mounting plate 34.

[0055] The auxiliary structure also includes mounting holes 35 and guide blocks 36;

[0056] Mounting hole 35 is formed inside mounting piece 34, and guide block 36 is fixedly connected to one end of mounting piece 34;

[0057] The slide 31 is used to provide space for the iron block 33 to slide. There are three sets of mounting plates 34, and the mounting holes 35 of the three sets of mounting plates 34 are of different sizes.

[0058] With the auxiliary cooperation between the sliding groove 31 and the magnetic piece 32, the mounting piece 34 can be driven to slide while the iron block 33 is sliding, and the magnetic piece 32 and the iron block 33 are magnetically connected.

[0059] Working principle: When installing the protection device;

[0060] First, after observing the size of the groove at the installation location, select from multiple sets of mounting pieces 34. After selecting a suitable set of mounting pieces 34, the iron block 33 inside the sliding groove 31 can be used to make the iron block 33 drive the mounting piece 34 to slide. When the iron block 33 and the magnetic piece 32 are magnetically connected, the mounting hole 35 and the groove at the mounting base 16 can be aligned.

[0061] Next, after inserting the bolt into the groove and mounting hole 35 of the mounting base 16, thread it into the groove of the mounting location.

[0062] This step increases the installation flexibility of the protection device, thereby increasing its adaptability.

[0063] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A front disc brake failure protection device, comprising a main structure, characterized in that: Protective structure: The protective structure is coaxially mounted on the outside of the main structure and is linked and cooperates with the braking actuator of the main structure; Main structure: The main structure includes a brake disc (11), a brake caliper (12), a main brake line (13), a master cylinder (14), a fixing plate (15), and a mounting base (16); The brake caliper (12) is fixedly connected to the outside of the brake disc (11), the fixing plate (15) is fixedly connected to the outer wall of the brake caliper (12), the mounting base (16) is fixedly connected to the side of the fixing plate (15) away from the brake caliper (12), one end of the main brake line (13) passes through and communicates with the piston chamber of the brake caliper (12), and the master cylinder (14) is fixedly connected to one end of the main brake line (13). Protection structure: The protection structure includes a pressure sensor (21), a displacement sensor (22), a controller (23), an electric push rod (24), a spare brake block (25), and an auxiliary cylinder (26); The pressure sensor (21) is fixedly connected to the inner wall of the main brake line (13), the displacement sensor (22) is fixedly connected to the piston extension end of the brake caliper (12), the controller (23) is fixedly connected to the top of the mounting base (16), the electric push rod (24) is fixedly connected to the inner side of the mounting base (16), the spare brake block (25) is fixedly connected to the output end of the electric push rod (24), and the auxiliary cylinder (26) is fixedly connected to the rear of the mounting base (16).

2. The front disc brake failure protection device according to claim 1, characterized in that, The protection structure also includes an electromagnetic lock (27), a backup pipeline (28), and a signal amplifier (29); The electromagnetic lock (27) is fixedly connected between the electric push rod (24) and the spare brake block (25), the signal amplifier (29) is fixedly connected between the pressure sensor (21), the displacement sensor (22) and the controller (23), and the spare pipeline (28) is fixedly connected to one end of the auxiliary cylinder (26).

3. The front disc brake failure protection device according to claim 2, characterized in that, The friction surface of the spare brake block (25) is parallel to the end face of the brake disc (11), and the friction area of ​​the spare brake block (25) is not less than 80% of the main brake block of the brake caliper (12).

4. A front disc brake failure protection device according to claim 2, characterized in that, Guide grooves are provided on both sides of the inner wall of the mounting base (16), and the outer wall of the electric push rod (24) is slidably connected to the guide groove.

5. A front disc brake failure protection device according to claim 1, characterized in that, The main structure also includes heat sinks (17) and dust covers (18); The heat sink (17) is fixedly connected to the outer side wall of the brake caliper (12), and the dust cover (18) is fixedly connected to the outer side of the mounting base (16) and covers the outside of the protective structure.

6. A front disc brake failure protection device according to claim 1, characterized in that, It also includes auxiliary structures; The auxiliary structure includes a slide (31), a magnetic sheet (32), an iron block (33), and a mounting plate (34); The groove (31) is opened on the outer front end of the mounting base (16), the magnetic sheet (32) is fixedly connected to the upper inner side of the groove (31), the mounting plate (34) is slidably connected to the inside of the mounting base (16), and the iron block (33) is fixedly connected to one end of the mounting plate (34).

7. A front disc brake failure protection device according to claim 6, characterized in that, The auxiliary structure also includes mounting holes (35) and guide blocks (36); The mounting hole (35) is opened inside the mounting piece (34), and the guide block (36) is fixedly connected to one end of the mounting piece (34).

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