Floating piston of brake caliper

Abstract

The utility model relates to the technical field of brake calipers, and discloses a brake caliper floating piston which comprises a piston seat and a floating piece installed on the piston seat. A mounting groove is formed in the piston seat, a hemispherical groove is formed in the bottom of the mounting groove, and an elastic limiting ring is mounted on the inner wall of the mounting groove; the floating piece comprises a ball head moving part, a connecting rod is arranged on the ball head moving part, the ball head moving part is located in the hemispherical groove, and the elastic limiting ring is connected to the surface of the connecting rod in a sleeving mode. According to the floating piston of the brake caliper, the piston seat, the floating part, the mounting groove, the hemispherical groove and the elastic limiting ring are arranged, the elastic limiting ring of the floating part limits the ball head movable part, a movable cavity is formed between the connecting rod and the mounting groove, then the connecting rod can move in the mounting groove, and the ball head movable part slides in the hemispherical groove; the angle of the connecting rod can be changed, the angle of the butt joint seat used for installing the clamping piece can be changed, and the clamping piece can be tightly attached to the brake disc conveniently.

Description

Technical Field

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

[0002] The brake caliper is an important part of the automobile braking system, and is mainly responsible for clamping the brake disc to achieve the braking function of the car. When the driver steps on the brake pedal, the brake caliper receives the brake fluid pressure through the oil pipe, causing the piston in the brake caliper to move outward, thereby causing the clamping plate in the brake caliper to clamp the brake disc and slow down or stop the car through friction.

[0003] Currently, the common piston direction is fixed, and the angle between the clamping plate and the brake disc is fixed when the piston is pushed out. When the brake disc vibrates, the clamping plate and the brake disc cannot fit tightly. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a brake caliper floating piston to solve the problems mentioned in the above background.

[0005] The utility model provides the following technical solution: a brake caliper floating piston, comprising: a piston seat and a floating member installed on the piston seat;

[0006] The piston seat is provided with a mounting groove, the bottom of the mounting groove is provided with a hemispherical groove, and the inner wall of the mounting groove is provided with an elastic limiting ring;

[0007] The floating member includes a ball head movable part, a connecting rod is arranged on the ball head movable part, the ball head movable part is located inside the hemispherical groove, the elastic limiting ring is sleeved on the surface of the connecting rod, and the end of the connecting rod passes through the mounting groove and extends to the outside of the piston seat, and an active cavity is formed between the connecting rod and the mounting groove;

[0008] The diameter of the connecting rod is smaller than the diameter of the movable part of the ball head, and the inner diameter of the elastic limiting ring is smaller than the diameter of the movable part of the ball head.

[0009] Preferably, an annular groove is formed on the inner wall of the installation groove, and the elastic limiting ring is installed on the inner wall of the annular groove.

[0010] Preferably, the radius of the ball head movable part is equal to the radius of the hemispherical groove, and the surface of the ball head movable part is slidably connected to the inner wall of the hemispherical groove.

[0011] Preferably, one end of the connecting rod extending to the outside of the piston seat is connected to a docking seat.

[0012] Preferably, a limiting platform is provided on the movable part of the ball head.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The floating piston of the brake caliper is provided with a piston seat, a floating part, a mounting groove, a hemispherical groove and an elastic limiting ring. The elastic limiting ring of the floating part limits the movable part of the ball head, and a movable cavity is formed between the connecting rod and the mounting groove. The connecting rod can move in the mounting groove, and the movable part of the ball head slides in the hemispherical groove, so that the angle of the connecting rod can be changed. The angle of the docking seat for installing the clamping plate can be changed, which facilitates the clamping plate to fit tightly with the brake disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the side section structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the explosion structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the side section structure of the piston seat of the utility model.

[0019] In the figure: 1. piston seat; 2. floating part; 21. ball head movable part; 22. connecting rod; 3. mounting groove; 4. hemispherical groove; 5. elastic limit ring; 6. annular groove; 7. docking seat; 8. limit platform. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4The brake caliper floating piston comprises: a piston seat 1 and a floating member 2 installed on the piston seat 1, a mounting groove 3 is provided on the piston seat 1, a hemispherical groove 4 is provided at the bottom of the mounting groove 3, an elastic limiting ring 5 is installed on the inner wall of the mounting groove 3, the floating member 2 comprises a ball head movable part 21, a connecting rod 22 is provided on the ball head movable part 21, the ball head movable part 21 is located inside the hemispherical groove 4, the elastic limiting ring 5 is sleeved on the surface of the connecting rod 22, and the end of the connecting rod 22 passes through the mounting groove 3 and extends to the outside of the piston seat 1, an active cavity is formed between the connecting rod 22 and the mounting groove 3, and a limiting platform is provided on the ball head movable part 21 8. The limit platform 8 is not easy to slide when in contact with the elastic limit ring 5, which further prevents the ball head movable part 21 from sliding out of the elastic limit ring 5. The diameter of the connecting rod 22 is smaller than the diameter of the ball head movable part 21. The radius of the ball head movable part 21 is equal to the radius of the hemispherical groove 4. The surface of the ball head movable part 21 is slidably connected to the inner wall of the hemispherical groove 4. The ball head movable part 21 can slide smoothly in the hemispherical groove 4. The direction of the connecting rod 22 is adjusted. The inner diameter of the elastic limit ring 5 is smaller than the diameter of the ball head movable part 21. The end of the connecting rod 22 extending to the outside of the piston seat 1 is connected to a docking seat 7, and the docking seat 7 is used to install a clamping sheet.

[0022] See also Figure 4 The inner wall of the mounting groove 3 is provided with an annular groove 6, and the elastic limiting ring 5 is installed on the inner wall of the annular groove 6. The elastic limiting ring 5 is inserted into the annular groove 6, so as to fix the position of the elastic limiting ring 5 conveniently.

[0023] The ball head movable part 21 is installed in the mounting groove 3, and the surface of the ball head movable part 21 is slidably connected to the inner wall of the hemispherical groove 4. The elastic limiting ring 5 limits the ball head movable part 21, and a movable cavity is formed between the connecting rod 22 and the mounting groove 3. The elastic limiting ring 5 is sleeved on the surface of the connecting rod 22, so that the connecting rod 22 can move in the mounting groove 3. The elastic limiting ring 5 is elastic and does not affect the movement of the connecting rod 22. The ball head movable part 21 slides in the hemispherical groove 4, so that the angle of the connecting rod 22 can be changed, and the angle of the docking seat 7 for installing the clamping plate can be changed, which facilitates the clamping plate to fit tightly with the brake disc.

[0024] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Brake caliper floating piston, characterized in that: include: A piston seat (1) and a floating member (2) mounted on the piston seat (1); The piston seat (1) is provided with a mounting groove (3), the bottom of the mounting groove (3) is provided with a hemispherical groove (4), and the inner wall of the mounting groove (3) is provided with an elastic limiting ring (5); The floating member (2) comprises a ball head movable portion (21), a connecting rod (22) is arranged on the ball head movable portion (21), the ball head movable portion (21) is located inside the hemispherical groove (4), the elastic limiting ring (5) is sleeved on the surface of the connecting rod (22), and the end of the connecting rod (22) passes through the mounting groove (3) and extends to the outside of the piston seat (1), and an active cavity is formed between the connecting rod (22) and the mounting groove (3); The diameter of the connecting rod (22) is smaller than the diameter of the ball head movable part (21), and the inner diameter of the elastic limiting ring (5) is smaller than the diameter of the ball head movable part (21).

2. The brake caliper floating piston according to claim 1, characterized in that: An annular groove (6) is provided on the inner wall of the installation groove (3), and the elastic limiting ring (5) is installed on the inner wall of the annular groove (6).

3. The brake caliper floating piston according to claim 1, characterized in that: The radius of the ball head movable part (21) is equal to the radius of the hemispherical groove (4), and the surface of the ball head movable part (21) is slidably connected to the inner wall of the hemispherical groove (4).

4. The brake caliper floating piston according to claim 1, characterized in that: One end of the connecting rod (22) extending to the outside of the piston seat (1) is connected to a docking seat (7).

5. The brake caliper floating piston according to claim 1, characterized in that: A limiting platform (8) is provided on the ball head movable portion (21).

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