Disc brake pump capable of improving sliding effect of brake pad

Abstract

The utility model relates to the technical field of disc brake pumps, in particular to a disc brake pump capable of improving the sliding effect of a brake pad, the disc brake pump comprises an upper caliper body, a lower caliper body, a reset assembly and a brake driving mechanism, the brake driving mechanism comprises an ejector rod, an upper screw cap, a lower screw cap, a driven bead and a brake assembly, a brake cavity is formed in the upper caliper body, and the ejector rod, the upper screw cap, the lower screw cap, the driven bead and the brake assembly are arranged in the brake cavity. The ejector rod axially rotates in the brake cavity, the upper screw cover and the lower screw cover are connected to the periphery of the ejector rod in a sliding mode, a ball sliding way is further formed in the upper surface of the lower screw cover, and the driven ball is connected to the interior of the ball sliding way in a sliding mode; according to the brake pad, the contact area of the connecting arc plate and the supporting column is reduced through the brake driving mechanism, so that the friction force of the brake pad in the sliding process is reduced, and the sliding effect of the brake pad is improved; the ejector rod and the brake pad are driven to reset simultaneously, and the reset speed of the brake pad is increased.

Description

Technical Field

[0001] The present application relates to the field of a disc brake pump for improving the sliding effect of a brake pad, and in particular to a disc brake pump for improving the sliding effect of a brake pad. Background Art

[0002] The disc brake consists of a brake disc connected to the wheel and a brake caliper on the edge of the disc. When braking, high-pressure brake oil pushes the brake pads to clamp the brake disc, thereby producing a braking effect.

[0003] With reference to the Chinese patent application with publication number CN220470514U, a disc brake pump for improving the sliding effect of brake pads is disclosed, including a disc brake pump body, a brake control mechanism arranged in the disc brake pump body, and a brake pad assembly arranged at the front end of the brake control mechanism. The disc brake pump body includes a shell and a brake pad assembly mounting cavity opened on the shell. The brake pad assembly includes a left brake pad and a right brake pad. The left and right brake pads are installed in the brake pad assembly mounting cavity through a guide pin fixing structure. The guide pin fixing structure includes a guide pin, and arc-shaped grooves provided on both sides of the upper part of the left and right brake pads respectively. The left and right brake pads can reciprocate along the guide pins through the arc-shaped grooves. The brake pads are installed in the brake pad assembly mounting cavity through the guide pin fixing structure, so that the brake pads have good sliding performance and are not prone to abnormal noise.

[0004] However, in the prior art, the brake pad is connected to the disc brake pump body through a pin, and the perforations on both sides of the brake pad are semi-enclosed and move on the pin, which generates large friction, easily causes abnormal noise, and has poor sliding performance, making the reset of the brake pad more complicated. Therefore, we have designed a disc brake pump that improves the sliding effect of the brake pad. Utility Model Content

[0005] The disc brake pump for improving the sliding effect of the brake pad provided in the embodiment of the present application can solve the technical problems that the perforated semi-enclosed holes on both sides of the brake pad move on the pin, generating large friction, prone to abnormal noise, and poor sliding performance.

[0006] An embodiment of the present application provides a disc brake pump for improving the sliding effect of brake pads, including an upper caliper body, a lower caliper body, a reset assembly and a brake drive mechanism, wherein the brake drive mechanism includes a push rod, an upper screw cover, a lower screw cover, a driven ball and a brake assembly, a brake chamber with an open side is provided inside the caliper body, the push rod rotates axially in the brake chamber, the upper screw cover is slidably connected to the outer periphery of the push rod, the lower screw cover is slidably connected to the outer periphery of the push rod, a ball slide is further provided on the upper surface of the lower screw cover, the driven ball is slidably connected inside the ball slide, the brake assembly is used for braking, and the reset assembly is used to reset the brake assembly.

[0007] The above technical solutions in the embodiments of the present application have at least the following technical effects:

[0008] 1. In this application, the driven ball rolls along the inside of the ball slide under the action of force, so that the positions of the push rod and the driven ball change, pressing the upper brake pad to move downward, causing the lower brake pad to contact and generate friction with the brake disc, and braking the brake disc, thereby improving the braking rate of the brake disc. By arranging a reset spring and a limit cylinder between the side cover and the upper screw cover, the brake pad drives the push rod and the brake pad to reset at the same time after braking the brake disc. The structure is relatively simple and convenient, which speeds up the reset rate of the brake pad.

[0009] 2. The present application provides a through hole on the connecting arc plate and connects it to the support column through the through hole, so that when the brake pad moves downward, the contact area between the connecting arc plate and the support column is reduced, thereby reducing the friction of the brake pad during the sliding process and improving the sliding effect of the brake pad. By providing multiple circular grooves on the brake disc, the friction between the brake pad and the brake disc is increased, further improving the braking rate of the brake disc. At the same time, the heat generated by the friction between the brake pad and the brake disc can be dissipated, the brake disc can be cooled, and the service life of the brake disc and the brake pad can be extended.

[0010] In some embodiments, the brake assembly includes an upper brake pad, a lower brake pad and a connecting arc plate, the upper brake pad is fixedly connected to the lower surface of the lower screw cover, the lower brake pad is fixedly connected to the lower caliper body, the two ends of the connecting arc plate are fixedly connected to the upper brake pad and the lower brake pad, and the connecting arc plate is integrally formed with the upper brake pad and the lower brake pad.

[0011] In some embodiments, a support column is further provided on the lower clamp body, a through hole is opened on the connecting arc plate, and the connecting arc plate is slidably connected to the support column through the through hole.

[0012] In some embodiments, the brake drive mechanism further includes a side cover plate, which is detachably mounted on the lower end of the upper caliper body, and the side cover plate is used to position the axial rotation of the push rod.

[0013] In some embodiments, the reset assembly includes a reset spring and a limiting cylinder, the reset spring is sleeved on the outer periphery of the top rod, the limiting cylinder is sleeved on the outer periphery of the reset spring, the upper end of the limiting cylinder is fixedly connected to the side cover plate, and the limiting cylinder is located between the upper screw cover and the side cover plate, and the reset spring is located between the limiting cylinder and the upper screw cover.

[0014] In some embodiments, a mounting plate is further provided on the lower caliper body, and the mounting plate is fixedly connected to the lower caliper body by bolts. A connecting shaft is fixedly connected to the lower surface of the mounting plate, and a brake disc is rotatably connected to the outer periphery of the connecting shaft, and the brake disc is located between the upper brake pad and the lower brake pad.

[0015] In some embodiments, a plurality of circular grooves are evenly distributed on the brake pad. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 A schematic structural diagram of a disc brake pump for improving the sliding effect of brake pads provided in an embodiment of the present application;

[0018] Figure 2 A schematic diagram of a brake drive structure of a disc brake pump for improving the sliding effect of brake pads provided in an embodiment of the present application;

[0019] Figure 3 An exploded diagram of the brake drive structure of a disc brake pump for improving the sliding effect of brake pads provided in an embodiment of the present application.

[0020] Among them, the figure marks in the figure are: 1. upper caliper body; 2. lower caliper body; 3. brake drive mechanism; 31. push rod; 32. upper screw cover; 33. lower screw cover; 34. driven ball; 35. brake assembly; 351. upper brake pad; 352. lower brake pad; 353. connecting arc plate; 36. side cover plate; 4. ball slide; 5. support column; 6. through hole; 7. reset assembly; 71. reset spring; 72. limit cylinder; 8. mounting plate; 9. connecting shaft; 10. brake disc; 11. circular groove. DETAILED DESCRIPTION

[0021] Based on this, in order to improve the problem in the related art that the brake pad is connected to the disc brake pump body through a pin, the perforations on both sides of the brake pad are semi-enclosed and move on the pin, which generates large friction, is prone to abnormal noise, and has poor sliding properties, and the reset of the brake pad is more complicated, the embodiment of the present application provides the following solution.

[0022] See also Figures 1 to 3 A disc brake pump for improving the sliding effect of brake pads includes an upper caliper body 1, a lower caliper body 2, a reset component 7 and a brake drive mechanism 3, wherein the reset component 7 is used to reset the brake component 35, and the drive mechanism is used to brake the brake disc 10.

[0023] See also Figures 1 to 3The brake drive mechanism 3 includes a push rod 31, an upper screw cover 32, a lower screw cover 33, a driven ball 34 and a brake assembly 35. The upper caliper body 1 is provided with a brake chamber with one side open, the push rod 31 is axially rotated in the brake chamber, the upper screw cover 32 is slidably connected to the outer periphery of the push rod 31, the lower screw cover 33 is slidably connected to the outer periphery of the push rod 31, the upper surface of the lower screw cover 33 is further provided with a ball slide 4, and the driven ball 34 is slidably connected to the ball sliding inside. The brake assembly 35 includes an upper brake pad 351, a lower brake pad 352 and a connecting arc plate 353, the upper brake pad 351 is fixedly connected to the lower surface of the lower screw cover 33, the lower brake pad 352 is fixedly connected to the lower caliper body 2, the two ends of the connecting arc plate 353 are fixedly connected to the upper brake pad 351 and the lower brake pad 352, and the connecting arc plate 353 is integrally formed with the upper brake pad 351 and the lower brake pad 352;

[0024] The brake drive mechanism 3 also includes a side cover plate 36, which can be detachably installed at the opening. The opening is located at the lower end of the upper caliper body 1, and the side cover plate 36 is used to position the axial rotation of the push rod 31. A support column 5 is also provided on the lower caliper body 2, and a through hole 6 is opened on the connecting arc plate 353. The connecting arc plate 353 is slidably connected to the support column 5 through the through hole 6.

[0025] With such arrangement, when the brake disc 10 needs to be braked, the push rod 31 rotates axially in the brake chamber, thereby driving the driven ball 34 to roll in the ball slide. At this time, the position between the push rod 31 and the driven ball 34 changes, and the position of the driven ball 34 in the ball slide 4 also changes. Under the action of the two, the upper brake pad 351 will be pressed to move downward and abut against the brake pad, thereby braking the brake disc 10.

[0026] The effect of this arrangement is that the driven ball 34 rolls along the ball slide 4 under the action of force, causing the position of the push rod 31 and the driven ball 34 to change, pressing the upper brake pad 351 to move downward, causing the lower brake pad 352 to contact with the brake disc 10 to generate friction, braking the brake disc 10, thereby improving the braking rate of the brake disc 10;

[0027] By opening a through hole 6 on the connecting arc plate 353 and connecting it to the support column 5 through the through hole 6, the contact area between the connecting arc plate 353 and the support column 5 is reduced during the downward movement of the brake pad, thereby reducing the friction force of the brake pad during the sliding process and improving the sliding effect of the brake pad.

[0028] See also Figures 1 to 3The lower caliper body 2 is further provided with a mounting plate 8, which is fixedly connected to the lower caliper body 2 by bolts. A connecting shaft 9 is fixedly connected to the lower surface of the mounting plate 8. The outer periphery of the connecting shaft 9 is rotatably connected to a brake disc 10, and the brake disc 10 is located between the upper brake pad 351 and the lower brake pad 352. A plurality of circular grooves 11 are evenly opened on the brake pad;

[0029] The reset assembly 7 includes a reset spring 71 and a limiting cylinder 72. The reset spring 71 is sleeved around the outer circumference of the push rod 31, and the limiting cylinder 72 is sleeved around the outer circumference of the reset spring 71. The upper end of the limiting cylinder 72 is fixedly connected to the side cover 36. The limiting cylinder 72 is located between the upper screw cover 32 and the side cover 36, and the reset spring 71 is located between the limiting cylinder 72 and the upper screw cover 32.

[0030] With such arrangement, after the braking of the brake disc 10 is completed, the compressed return spring 71 will begin to reset due to its own elasticity. The elastic force generated during the reset process of the return spring 71 will push the push rod 31 to reset upward, and at the same time, the driven ball 34 will roll in the opposite direction along the ball slide 4 under the action of the force to reset.

[0031] The effect of this arrangement is that by providing multiple circular grooves 11 on the brake disc 10, the friction between the brake pad and the brake disc 10 is increased, and the braking rate of the brake disc 10 is further improved. At the same time, the heat generated by the friction between the brake pad and the brake disc 10 can be dissipated, the brake disc 10 is cooled, and the service life of the brake disc 10 and the brake pad is extended. By arranging a reset spring 71 and a limit cylinder 72 between the side cover plate 36 and the upper screw cover 32, the brake pad drives the push rod 31 and the brake pad to reset at the same time after the braking of the brake disc 10 is completed. The structure is relatively simple and convenient, and the reset rate of the brake pad is accelerated.

[0032] From the above, we can see that the working principle of this application is as follows:

[0033] When the brake disc 10 needs to be braked, the push rod 31 rotates axially in the brake chamber, thereby driving the driven ball 34 to roll in the ball slide. At this time, the position between the push rod 31 and the driven ball 34 changes, and the position of the driven ball 34 in the ball slide 4 also changes. Under the action of the two, the upper brake pad 351 is pressed downward to abut against the brake pad, thereby braking the brake disc 10.

[0034] After the braking of the brake disc 10 is completed, the compressed return spring 71 will begin to reset due to its own elasticity. The elastic force generated during the reset of the return spring 71 will push the push rod 31 to reset upward. At the same time, the driven ball 34 will roll in the opposite direction along the ball slide 4 under the action of the force to reset.

[0035] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A disc brake pump for improving the sliding effect of brake pads, characterized in that: The invention comprises an upper caliper body (1), a lower caliper body (2), a reset assembly (7) and a brake drive mechanism (3), wherein the brake drive mechanism (3) comprises a push rod (31), an upper screw cover (32), a lower screw cover (33), a driven ball (34) and a brake assembly (35), wherein a brake chamber with an open side is provided inside the upper caliper body (1), the push rod (31) is axially rotated in the brake chamber, the upper screw cover (32) is slidably connected to the outer periphery of the push rod (31), the lower screw cover (33) is slidably connected to the outer periphery of the push rod (31), a ball slideway (4) is further provided on the upper surface of the lower screw cover (33), the driven ball (34) is slidably connected to the inner periphery of the ball slideway, the brake assembly (35) is used for braking, and the reset assembly (7) is used for resetting the brake assembly (35).

2. A disc brake pump for improving the sliding effect of brake pads according to claim 1, characterized in that: The brake assembly (35) comprises an upper brake pad (351), a lower brake pad (352) and a connecting arc plate (353), wherein the upper brake pad (351) is fixedly connected to the lower surface of the lower screw cover (33), the lower brake pad (352) is fixedly connected to the lower caliper body (2), the two ends of the connecting arc plate (353) are fixedly connected to the upper brake pad (351) and the lower brake pad (352), and the connecting arc plate (353) is integrally formed with the upper brake pad (351) and the lower brake pad (352).

3. A disc brake pump for improving the sliding effect of brake pads according to claim 2, characterized in that: A support column (5) is further provided on the lower clamp body (2), a through hole (6) is provided on the connecting arc plate (353), and the connecting arc plate (353) is slidably connected to the support column (5) via the through hole (6).

4. A disc brake pump for improving the sliding effect of brake pads according to claim 1, characterized in that: The brake drive mechanism (3) further comprises a side cover plate (36), which is detachably mounted on the lower end of the upper caliper body (1), and the side cover plate (36) is used to position the axial rotation of the push rod (31).

5. The disc brake pump for improving the sliding effect of brake pads according to claim 1, characterized in that: The reset assembly (7) includes a reset spring (71) and a limiting cylinder (72), wherein the reset spring (71) is sleeved on the outer periphery of the push rod (31), and the limiting cylinder (72) is sleeved on the outer periphery of the reset spring (71). The upper end of the limiting cylinder (72) is fixedly connected to the side cover (36), and the limiting cylinder (72) is located between the upper screw cover (32) and the side cover (36), and the reset spring (71) is located between the limiting cylinder (72) and the upper screw cover (32).

6. A disc brake pump for improving the sliding effect of brake pads according to claim 3, characterized in that: The lower caliper body (2) is further provided with a mounting plate (8), the mounting plate (8) being fixedly connected to the lower caliper body (2) by bolts, the lower surface of the mounting plate (8) being fixedly connected to a connecting shaft (9), the outer periphery of the connecting shaft (9) being rotatably connected to a brake disc (10), and the brake disc (10) being located between an upper brake pad (351) and a lower brake pad (352).

7. A disc brake pump for improving the sliding effect of brake pads according to claim 6, characterized in that: The brake pad is also evenly provided with a plurality of circular grooves (11).

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