Compact parking brake assembly

Abstract

The utility model discloses a compact parking brake assembly which comprises a floating block, one end of the floating block is provided with a cavity filled with brake oil, the other end of the floating block is provided with a brake cavity with an open space, and a first brake pad and a second brake pad are arranged in the brake cavity in a sliding mode. The second brake pad is arranged on the side, close to the cavity, in the brake cavity in a sliding mode, and the first brake pad is arranged on the side, away from the cavity, in the brake cavity. A piston is fixedly installed in one end of the cavity, a cover plate is fixedly installed at the other end of the cavity, and a threaded cavity is formed in the piston. The brake disc is clamped between the second brake pad and the first brake pad, the two side surfaces of the brake disc make close contact with the second brake pad and the first brake pad, the extrusion acting force from the direction of the second brake pad is larger and larger, the parking effect on the brake disc is achieved, a compact parking structure is achieved, normally-closed active braking is adopted, and the braking efficiency is improved. The method is applicable to small-tonnage models with limited and narrow spaces.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile parking, especially relates to a compact parking brake assembly. BACKGROUND

[0002] Parking brake, is used for stabilizing vehicle after vehicle is stable, avoids the accident due to the vehicle when parking on the sloping road.

[0003] In prior art, the volume of parking brake for brake is big, can occupy the area of brake disc bigger, and the internal structure of existing parking brake is in the relatively open state, this makes when carrying out brake, and the internal structure is along with long time use, easy to appear the problem of loosening, thereby influence parking effect. UTILITY MODEL CONTENTS

[0004] The utility model discloses to solve the technical problem that the internal structure of existing parking brake is in the relatively open state in the background art, this makes when carrying out brake, and the internal structure is along with long time use, easy to appear the problem of loosening, thereby influence parking effect, and propose a compact parking brake assembly.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A compact parking brake assembly, including floating block, one end of the floating block is arranged as the cavity filled with brake oil, the other end is arranged as the brake cavity of open space, the brake cavity is slidably provided with a brake pad No. 1, a brake pad No. 2, the brake pad No. 2 is slidably arranged in the brake cavity and close to the cavity side, the brake pad No. 1 is arranged in the brake cavity and away from the cavity side;

[0007] One end of the cavity is fixedly installed with the piston, the other end is fixedly installed with the cover plate, the piston is provided with the threaded cavity, the threaded cavity is inserted with the adjusting screw, a plurality of butterfly springs are sleeved on the piston, one end of the adjusting screw is abutted with the surface of the brake pad No. 2 through the top block, and the top block is fixed on the threaded cavity close to the brake cavity end through the elastic body;

[0008] The air release nozzle seat is installed on the air release nozzle, and the fixed screw rod is symmetrically installed on the outer surface of both sides of the brake cavity.

[0009] Preferably, the two sides of the inner wall of the brake cavity are provided with sliding grooves, and the two sides of the brake pad No. 2 and the brake pad No. 1 are respectively slidably connected with the two sliding grooves, and the brake pad No. 1 and the brake pad No. 2 are provided with protrusions on the opposite sides.

[0010] Preferably, both sides of the floating block are provided with mounting holes, and the two fixing screws are fixedly installed on the two mounting holes respectively.

[0011] Preferably, one end of each of the two fixing screws is fixedly arranged in the mounting hole through a first screw, and an internal hexagonal structure is arranged in the top end of the fixing screw.

[0012] Preferably, one end of the adjusting screw away from the threaded cavity passes through the cover plate and extends to the outside of the cavity, and a lock nut is fixedly sleeved on the end of the adjusting screw, and the other end abuts against the top block.

[0013] Preferably, one side of the floating block provided with the air release nozzle seat is provided with two protrusions, the two protrusions are arranged on the outer surface of the brake cavity, and a second screw is fixedly installed between the two protrusions.

[0014] Compared with the prior art, the brake assembly has the following beneficial effects:

[0015] 1. The brake disc is clamped between the second brake pad and the first brake pad, and the two side surfaces are in close contact with the second brake pad and the first brake pad, and the extrusion force from the second brake pad direction becomes larger and larger, thereby realizing the parking effect on the brake disc, realizing the compact parking structure, and adopting the normally closed active braking, which is suitable for small tonnage models with limited space.

[0016] 2. The second brake pad and the first brake pad are slidably connected to the sliding groove, and can adaptively deviate slightly, which is beneficial to the mutual approach of the second brake pad and the first brake pad, increases the parking effect, is beneficial to the removal of brake heat, and reduces the problem of thermal deformation of the second brake pad, the first brake pad and the brake disc during long-term friction. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a front structure schematic view of the compact parking brake assembly.

[0018] Figure 2 It is a back structure schematic view of the compact parking brake assembly.

[0019] Figure 3 It is a side structure schematic view of the compact parking brake assembly.

[0020] Figure 4 It is an internal sectional view of the compact parking brake assembly.

[0021] Figure 5 It is an explosion view of the compact parking brake assembly.

[0022] In the figure: 1 floating block, 2 piston, 3 butterfly spring, 4 adjusting screw, 5 cover plate, 6 locking nut, 7 second brake pad, 8 first brake pad, 9 fixed screw, 10 second screw, 11 brake cavity, 12 cavity, 13 first screw, 14 air release nozzle, 15 air release nozzle seat, 16 threaded cavity, 17 sliding groove, 18 top block. DETAILED DESCRIPTION

[0023] The technical solutions 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.

[0024] In the description of the utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0025] Referring to Figures 1-5 A compact parking brake assembly, comprising a floating block 1, one end of the floating block 1 is provided with a cavity 12 filled with brake oil, the other end is provided with an open space brake cavity 11, a first brake pad 8 and a second brake pad 7 are slidably arranged in the brake cavity 11, the second brake pad 7 is slidably arranged in the brake cavity 11 close to one side of the cavity 12, and the first brake pad 8 is arranged in the brake cavity 11 away from the other side of the cavity 12.

[0026] A piston 2 is fixedly installed in one end of the cavity 12, and a cover plate 5 is fixedly installed in the other end, a threaded cavity 16 is arranged in the piston 2, an adjusting screw 4 is inserted into the threaded cavity 16, a plurality of butterfly springs 3 are sleeved on the piston 2, one end of the adjusting screw 4 abuts against the surface of the second brake pad 7 through a top block 18, and the top block 18 is arranged on one end of the threaded cavity 16 close to the brake cavity 11; an air release nozzle seat 15 is formed in the floating block 1 and communicates with the cavity 12, an air release nozzle 14 is installed on the air release nozzle seat 15, and fixed screws 9 are symmetrically installed on the outer surfaces of both sides of the brake cavity 11.

[0027] The two sides of the inner wall of the brake cavity 11 are provided with sliding grooves 17, and the two sides of the second brake pad 7 and the first brake pad 8 are respectively slidably connected with the two sliding grooves 17. The opposite sides of the first brake pad 8 and the second brake pad 7 are respectively provided with protrusions. When the second brake pad 7 and the first brake pad 8 clamp the brake disc for parking, the protrusions of the second brake pad 7 and the first brake pad 8 will contact the brake disc and clamp it for parking. In the long-term use process, the second brake pad 7 and the first brake pad 8 will be rubbed for a long time, so the surface thereof is thickened.

[0028] The floating block 1 is provided with mounting holes on both sides, and two fixed screws 9 are respectively fixedly installed on the two mounting holes. A hexagonal socket structure is arranged at the top end of the fixed screw 9. The device is installed on the vehicle through the fixed screw 9, and the installation is detachable, which facilitates maintenance and replacement in the later period. One end of each of the two fixed screws 9 is fixedly arranged in the mounting hole through the first screw 13. The end of the adjusting screw 4 away from the threaded cavity 16 penetrates through the cover plate 5 and extends to the outside of the cavity 12, and a lock nut 6 is fixedly sleeved on the end of the adjusting screw 4. The other end of the adjusting screw 4 abuts against the top block 18.

[0029] The floating block 1 is provided with two protrusions on the side provided with the air release seat 15. The two protrusions are arranged on the outer surface of the brake cavity 11, and a second screw 10 is fixedly installed between the two protrusions. The floating block 1 is installed on the vehicle through the second screw 10. In addition to installing the device through the second screw 10, the device is also installed through the other end of the fixed screw 9.

[0030] In actual use, the brake disc is inserted into the brake cavity 11 and located between the first brake pad 8 and the second brake pad 7. When braking is needed, pressure is applied to the inside through one end of the adjusting screw 4. Under the action of external pressure, the adjusting screw 4 moves into the cavity 12. The adjusting screw 4 pushes the top block 18 to move outward during movement. A plurality of butterfly springs 3 are sleeved on the adjusting screw 4 in the cavity 12. The butterfly springs 3 support the inside of the cavity 12 and ensure the stable movement of the adjusting screw 4. When the threaded cavity 16 moves, the second brake pad 7 is pushed to move, so that the second brake pad 7 moves towards the first brake pad 8. The brake disc is clamped between the second brake pad 7 and the first brake pad 8, and the two side surfaces are in close contact with the second brake pad 7 and the first brake pad 8. As the extrusion force from the second brake pad 7 direction becomes larger and larger, the parking effect of the brake disc is realized, and a compact parking structure is realized. The cavity 12 is filled with brake oil. The air in the inside is released through the air release seat 15. The brake oil has the effects of lubrication and heat dissipation. The device has a compact overall structure and adopts a normally closed active brake. For small-tonnage models with limited space, such as 50-85 type wheel excavators, the device can achieve good parking effect.

[0031] When the second brake pad 7 and the first brake pad 8 are parked close to each other, the second brake pad 7 and the first brake pad 8 are slidably clamped on the sliding groove 17, and the clamped and fixed connection mode can adaptively occur a certain degree of slight deviation during parking, realize floating parking, and adaptively deviate to one side during brake parking, which is beneficial to the close of the second brake pad 7 and the first brake pad 8, increases the parking effect, is beneficial to the removal of brake heat, and reduces the problem of thermal deformation of the second brake pad 7, the first brake pad 8 and the brake disc in the long-term friction process.

[0032] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A compact parking brake assembly comprising a floating block (1), characterized in that, One end of the floating block (1) is provided with a cavity (12) filled with brake oil, and the other end is provided with an open brake chamber (11), a first brake pad (8) and a second brake pad (7) are slidably arranged in the brake chamber (11), the second brake pad (7) is slidably arranged in the brake chamber (11) near one side of the cavity (12), and the first brake pad (8) is arranged in the brake chamber (11) away from the cavity (12). One end of the cavity (12) is fixedly provided with a piston (2), and the other end is fixedly provided with a cover plate (5), the piston (2) is provided with a threaded cavity (16), the threaded cavity (16) is inserted with an adjusting screw (4), the piston (2) is sleeved with a plurality of butterfly springs (3), one end of the adjusting screw (4) is abutted with the surface of the second brake pad (7) through a top block (18), and the top block (18) is fixed on one end of the threaded cavity (16) near the brake chamber (11) through an elastic body. The floating block (1) is provided with a gas outlet seat (15) communicated with the cavity (12), the gas outlet seat (15) is provided with a gas outlet (14), and the outer surfaces of the two sides of the brake chamber (11) are symmetrically provided with fixed screws (9).

2. A compact parking brake assembly according to claim 1, characterized in that The two sides of the inner wall of the brake chamber (11) are provided with sliding grooves (17), and the two sides of the second brake pad (7) and the first brake pad (8) are respectively slidably connected with the two sliding grooves (17), and the mutually facing sides of the first brake pad (8) and the second brake pad (7) are provided with protrusions.

3. A compact parking brake assembly according to claim 1, wherein, The floating block (1) is provided with mounting holes on both sides, and the two fixed screws (9) are fixedly arranged in the mounting holes.

4. A compact parking brake assembly according to claim 3, wherein, One end of the two fixed screws (9) is fixedly arranged in the mounting hole through a first screw (13), and the top end of the fixed screw (9) is provided with an internal hexagonal structure.

5. A compact parking brake assembly according to claim 1, wherein, The end of the adjusting screw (4) away from the threaded cavity (16) penetrates through the cover plate (5) and extends to the outside of the cavity (12), and a lock nut (6) is fixedly sleeved on the end, and the other end abuts against the top block (18).

6. A compact parking brake assembly according to claim 1, wherein, One side of the floating block (1) provided with the gas outlet seat (15) is provided with two protrusions, the two protrusions are arranged on the outer surface of the brake chamber (11), and a second screw (10) is fixedly arranged between the two protrusions.

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