Brake

Abstract

The utility model relates to a brake which comprises brake calipers, a piston, a T-shaped push disc and a pressing plate, and the piston is arranged on the brake calipers and is in transmission connection with the T-shaped push disc so as to push the T-shaped push disc to move. A groove is formed in the upper end of the T-shaped push disc, the pressing plate is arranged in the moving direction of the T-shaped push disc, the two ends of the pressing plate are fixedly connected with the brake calipers, and the middle of the pressing plate is embedded into the groove and connected with the T-shaped push disc in a sliding mode. Compared with the prior art, the brake has the advantages that the groove is formed in the upper end of the T-shaped push disc, the middle of the pressing plate is embedded into the groove and connected with the T-shaped push disc in a sliding mode, the T-shaped push disc is blocked by the pressing plate and cannot rotate when pushed by the piston, and the situation that the guide rod collides with the guide hole due to rotation of the T-shaped push disc during braking is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of brakes, in particular to a brake. Background Art

[0002] The existing brake is mainly composed of a T-shaped push plate, a piston, a reference seat, a pressure arm, etc. When the brake starts to work, first, compressed air pushes the air chamber piston to drive the air chamber push rod to move forward, driving the pressure arm to rotate around the fulcrum. Since the pressure arm is an eccentric lever, through this eccentricity, the small output force of the air chamber piston cavity is amplified by a certain multiple and then transmitted to the reference seat. The reference seat transmits the output force to the piston by pressing the top end face of the piston thread, and then transmits the output force to the T-shaped push plate through the piston thread pair to clamp the friction plate to hold the brake disc, realizing the transmission of braking force.

[0003] However, due to the lack of the interlocking effect of the driving shaft and the driven shaft of the double-push plate structure in the single-push plate structure, when the T-shaped push plate clamps the brake disc, as the brake disc rotates, the T-shaped push plate is also clamped by the brake disc and rotates in the same direction by an angle until one side of the guide rods on both sides of the T-shaped push plate overcomes the reserved clearance with the caliper guide hole and then stops rotating. During the rotation of the T-shaped push plate, due to the large clamping force between the piston and the push plate, the piston does not rotate, so a relative rotational dislocation occurs between the push plate and the piston. With the accumulation of braking times, this rotational dislocation will continuously accumulate and increase, and finally it is manifested that the braking clearance of the brake is not automatically adjusted by the internal adjustment mechanism, but is directly affected by the rotational movement of the brake disc, resulting in the clearance being much smaller than the design value.

[0004] In addition, as the T-shaped push plate is carried by the brake disc and rotates together, the guide rods on both sides of the push plate will first overcome the reserved assembly clearance between them and the caliper guide hole. Subsequently, as the rotation continues, a large extrusion force will be generated between the guide rods and the caliper guide hole. The test shows that after a certain number of torsional brakings, the roots of the guide rods on both sides will fatigue and break successively. Summary of the Utility Model

[0005] In view of this, it is necessary to provide a brake to solve the technical problem that in the prior art, when the brake is braking, the T-shaped push plate will rotate together until the guide rod hits the inner wall of the guide hole and stops, resulting in the guide rod being prone to fatigue damage and fracture.

[0006] The utility model provides a brake, which includes: a brake caliper, a piston, a T-shaped push plate, and a pressing plate. The piston is arranged on the brake caliper and is in transmission connection with the T-shaped push plate to push the T-shaped push plate to move; a groove is formed at the upper end of the T-shaped push plate. The pressing plate is arranged along the movement direction of the T-shaped push plate. Both ends of the pressing plate are fixedly connected to the brake caliper, and the middle part of the pressing plate is embedded in the groove and is slidably connected to the T-shaped push plate.

[0007] Further, a guiding hole is formed in the brake caliper, and the brake further includes a guide rod. One end of the guide rod is fixedly connected to the T-shaped push plate, and the other end thereof passes through the guiding hole.

[0008] Further, it further includes a protective sleeve. The protective sleeve is elastic and sleeved on the guide rod, and the protective sleeve passes through the guiding hole together with the guide rod.

[0009] Further, it further includes a mounting plate and an alarm wire. The mounting plate is detachably mounted on the pressing plate. The mounting plate and the pressing plate enclose a receiving cavity with two open ends, and the alarm wire is arranged through the receiving cavity.

[0010] Further, it further includes a bracket and a brake pad. The bracket is fixedly connected to the brake caliper. The brake pad is slidably arranged on the bracket and is detachably fixedly connected to the T-shaped push plate. The piston can drive the brake pad to move via the T-shaped push plate.

[0011] Further, it further includes an elastic member. The elastic member connects the brake pad and the pressing plate to apply a downward elastic force to the brake pad.

[0012] Further, the elastic member is an elastic sheet. Both ends of the elastic sheet are clamped to the brake pad. The middle part of the elastic sheet bulges upward and abuts against the lower surface of the pressing plate, so that the elastic sheet deforms to generate an elastic force.

[0013] Further, the brake caliper forms a mounting groove. One end of the pressing plate is inserted into the mounting groove, and the other end of the pressing plate is detachably connected to the brake caliper.

[0014] Further, a mounting hole is formed at one end of the pressing plate away from the mounting groove. The brake caliper has a corresponding protruding part. A pin hole is formed on the protruding part. The protruding part is connected with the mounting hole in a matching manner, and the pressing plate is fixed by inserting a pin into the pin hole.

[0015] Further, the groove is a rectangular groove, and the cross-section of the part of the pressing plate connected to the groove is a corresponding rectangle.

[0016] Compared with the prior art, the brake provided by the present utility model forms a groove at the upper end of the T-shaped push plate. The middle part of the pressing plate is embedded in the groove and is slidably connected to the T-shaped push plate. When the T-shaped push plate is pushed by the piston, it is blocked by the pressing plate and cannot rotate, avoiding the collision between the guide rod and the guiding hole caused by the rotation of the T-shaped push plate during braking.

[0017] The above description is only an overview of the technical solution of the present utility model. In order to be able to understand the technical means of the present utility model more clearly and implement it according to the content of the specification, the preferred embodiments of the present utility model are described in detail below in conjunction with the accompanying drawings. The specific implementation manners of the present utility model are given in detail by the following embodiments and their accompanying drawings. Brief Description of the Drawings

[0018] The accompanying drawings described herein are used to provide a further understanding of the present utility model and form a part of this application. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0019] FIG. 1 is a schematic structural diagram of a preferred embodiment of a brake provided by the present utility model;

[0020] Figure 2 is a schematic structural diagram of another perspective of the brake provided by the present utility model;

[0021] Figure 3 is Figure 1 a schematic structural diagram of the T-shaped push plate in

[0022] Figure 4 is Figure 1 a schematic structural diagram of the pressure plate in Specific Embodiments

[0023] The following will specifically describe the preferred embodiments of the present utility model in conjunction with the accompanying drawings. Among them, the accompanying drawings form a part of this application and are used together with the embodiments of the present utility model to explain the principle of the present utility model, rather than to limit the scope of the present utility model.

[0024] Please refer to Figures 1 to 4 , the present utility model provides a brake, which includes a brake caliper 1, a piston 2, a T-shaped push plate 3, and a pressure plate 4. The piston 2 is arranged on the brake caliper 1 and is in transmission connection with the T-shaped push plate 3. The piston 2 is connected to the brake control system of the vehicle during use and is controlled by the brake control system to push the T-shaped push plate 3 to move. A groove 31 is formed at the upper end of the T-shaped push plate 3. The pressure plate 4 is arranged along the movement direction of the T-shaped push plate 3. Both ends of the pressure plate 4 are fixedly connected to the brake caliper 1, and the middle part of the pressure plate 4 is embedded in the groove 31 and is in sliding connection with the T-shaped push plate 3.

[0025] By embedding the middle part of the pressure plate 4 into the groove 31 and making it in sliding connection with the T-shaped push plate 3, when the T-shaped push plate is pushed by the piston, it is blocked by the pressure plate and cannot rotate, avoiding the collision between the guide rod and the guide hole caused by the rotation of the T-shaped push plate during braking.

[0026] In some embodiments, the brake caliper 1 is formed with an installation groove, one end of the pressure plate 4 is inserted into the installation groove, and the other end of the pressure plate 4 is detachably connected to the brake caliper 1.

[0027] In some embodiments, an installation hole 41 is formed at one end of the pressure plate 4 away from the installation groove. The brake caliper 1 has a corresponding protruding part, and a pin hole is formed on the protruding part. The protruding part is in mating connection with the installation hole 41, and the pressure plate is fixed by inserting a pin 5 into the pin hole.

[0028] In some embodiments, the groove 31 is a rectangular groove, and the cross-section of the portion of the pressure plate 4 connected to the groove 31 is a corresponding rectangle, so that the pressure plate 4 can be exactly snapped into the groove 31. The rotation of the pressure plate 4 is avoided by the limitation of the groove 31.

[0029] In some embodiments, a guiding hole is formed in the brake caliper 1, and the brake further includes a guide rod 6. One end of the guide rod 6 is fixedly connected to the T-shaped push plate 3, and the other end thereof passes through the guiding hole. The guide rod 6 is in clearance fit with the guiding hole.

[0030] In a preferred embodiment, the brake further includes a protective sleeve 7. The protective sleeve 7 is elastic and sleeved on the guide rod 6. The protective sleeve 7 passes through the guiding hole together with the guide rod 6, playing a role in protecting the guide rod 6. Even if the guide rod 6 impacts the guiding hole, the impact force can be reduced.

[0031] The brake further includes a bracket 8 and a brake pad 9. The bracket 8 is fixedly connected to the brake caliper 1, and the brake pad 9 is slidably arranged on the bracket 8 and is detachably and fixedly connected to the T-shaped push plate 3. During braking, the piston 2 can drive the brake pad 9 to move via the T-shaped push plate 3. The brake pad 9 contacts the brake disc, and the intense friction between the two decelerates the vehicle.

[0032] In some embodiments, the brake further includes an elastic member 10. The elastic member 10 connects the brake pad 9 and the pressure plate 4 and applies a downward elastic force to the brake pad 9 to press the brake pad 9 tightly against the bracket 8.

[0033] In this embodiment, the elastic member 10 is a spring plate. Both ends of the spring plate are clamped to the brake pad 9, and the middle part of the spring plate bulges upward and abuts against the lower surface of the pressure plate 4, so that the spring plate deforms to generate an elastic force.

[0034] In some embodiments, the brake further includes a mounting plate 11 and an alarm wire 12. The mounting plate 11 is detachably mounted on the pressure plate 4. The mounting plate 11 and the pressure plate 4 enclose a receiving cavity with two open ends, and the alarm wire 12 is arranged through the receiving cavity. The mounting plate 11 is used to limit and fix the alarm wire 12.

[0035] Compared with the prior art, the brake provided by the present utility model forms a groove at the upper end of the T-shaped push plate. The middle part of the pressure plate is embedded in the groove and is slidably connected to the T-shaped push plate. When the T-shaped push plate is pushed by the piston, it is blocked by the pressure plate and cannot rotate, avoiding the collision between the guide rod and the guiding hole caused by the rotation of the T-shaped push plate during braking.

[0036] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A brake, characterized in that, It includes: A brake caliper, a piston, a T-shaped push plate, and a pressure plate. The piston is arranged on the brake caliper and is in transmission connection with the T-shaped push plate to drive the T-shaped push plate to move; a groove is formed at the upper end of the T-shaped push plate. The pressure plate is arranged along the movement direction of the T-shaped push plate. Both ends of the pressure plate are fixedly connected to the brake caliper. The middle part of the pressure plate is embedded in the groove and is in sliding connection with the T-shaped push plate.

2. The brake according to claim 1, characterized in that, A guide hole is formed on the brake caliper. The brake further includes a guide rod. One end of the guide rod is fixedly connected to the T-shaped push plate, and the other end thereof passes through the guide hole.

3. The brake according to claim 2, characterized in that, It further includes a protective sleeve. The protective sleeve is elastic and sleeved on the guide rod. The protective sleeve passes through the guide hole together with the guide rod.

4. The brake according to claim 1, characterized in that, It further includes a mounting plate and an alarm wire. The mounting plate is detachably mounted on the pressure plate. The mounting plate and the pressure plate enclose a receiving cavity with both ends open. The alarm wire is arranged through the receiving cavity.

5. The brake according to claim 1, characterized in that, It further includes a bracket and a brake pad. The bracket is fixedly connected to the brake caliper. The brake pad is slidably arranged on the bracket and is detachably fixedly connected to the T-shaped push plate. The piston can drive the brake pad to move via the T-shaped push plate.

6. The brake according to claim 5, characterized in that, It further includes an elastic member. The elastic member connects the brake pad and the pressure plate to apply a downward elastic force to the brake pad.

7. The brake according to claim 6, characterized in that, The elastic member is a spring piece. Both ends of the spring piece are clamped to the brake pad. The middle part of the spring piece protrudes upward and abuts against the lower surface of the pressure plate so that the spring piece deforms to generate an elastic force.

8. The brake according to claim 1, characterized in that, The brake caliper forms a mounting groove. One end of the pressure plate is inserted into the mounting groove, and the other end of the pressure plate is detachably connected to the brake caliper.

9. The brake according to claim 8, characterized in that, A mounting hole is formed at one end of the pressure plate away from the mounting groove. The brake caliper has a corresponding protruding part. A pin hole is formed on the protruding part. The protruding part is in mating connection with the mounting hole, and the pressure plate is fixed by inserting a pin into the pin hole.

10. The brake according to claim 1, characterized in that, The groove is a rectangular groove, and the cross-section of the part of the pressure plate connected to the groove is a corresponding rectangle.

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