Disc brake mechanism and disc brake device

Abstract

The application relates to a disc brake mechanism and a disc brake device. The disc brake mechanism comprises a mounting frame, a first power element, a second power element and two brake calipers; the first power element is arranged on the mounting frame, the first power element comprises a first power cylinder and two first piston elements, the two first piston elements are movably connected with the first power cylinder, the first power cylinder is provided with a power input hole and a first power through hole; the second power element is arranged on the mounting frame, the second power element comprises a second power cylinder and two second piston elements, the two second piston elements are movably connected with the second power cylinder, the second power cylinder is provided with a second power through hole, and the second power through hole is communicated with the first power through hole; the two ends of the first power element are rotatably connected with the two brake calipers respectively, and the two ends of the second power element are rotatably connected with the two brake calipers respectively. The disc brake mechanism and the disc brake device can simplify the overall structure and improve the heat dissipation effect.

Description

Technical Field

[0001] This invention relates to the field of vehicle braking technology, specifically to a disc brake mechanism and disc brake device. Background Technology

[0002] Disc brakes offer advantages such as high stability, smooth operation, excellent heat dissipation, and strong water recovery capability, leading to their widespread use in braking assemblies across various vehicles. Traditional disc brake systems typically incorporate multiple pneumatic or hydraulic cylinders on the brake caliper body. These cylinders, powered by air or hydraulic pressure, clamp the brake disc, thereby generating the braking effect.

[0003] In traditional multi-cylinder brake calipers, the number of gas or liquid pipes required corresponds to the number of air or hydraulic cylinders, making the overall structure very complex. The pipes are also prone to tangling, making installation troublesome. Furthermore, the complexity of the structure affects the heat dissipation process of the brake caliper, resulting in poor heat dissipation. Summary of the Invention

[0004] The purpose of this invention is to provide a disc brake mechanism and disc brake device, which aims to solve the problems of excessive number of pipes in existing multi-cylinder disc brake devices, resulting in troublesome installation and poor heat dissipation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] On the one hand, a disc brake mechanism is provided, including a mounting bracket, a first power element, a second power element, and two brake calipers;

[0007] The first power element is mounted on the mounting bracket. The first power element includes a first power cylinder and two first pistons. The first power cylinder has a hollow structure. The two first pistons are respectively located on both sides of the first power cylinder. Both first pistons are movably connected to the first power cylinder. The first power cylinder is provided with a power input hole and a first power through hole.

[0008] The second power element is disposed on the mounting bracket. The second power element includes a second power cylinder and two second pistons. The second power cylinder has a hollow structure. The two second pistons are respectively disposed on both sides of the second power cylinder. Both second pistons are movably connected to the second power cylinder. The second power cylinder is provided with a second power through hole, which communicates with the first power through hole.

[0009] Two brake calipers are symmetrically disposed on both sides of the mounting bracket, and both brake calipers are rotatably connected to the mounting bracket. The two ends of the first power element are rotatably connected to the two brake calipers respectively, and the two ends of the second power element are rotatably connected to the two brake calipers respectively.

[0010] Optionally, the first piston member is provided with a first limiting structure that cooperates with the first power cylinder on the side near the first power cylinder, and the second piston member is provided with a second limiting structure that cooperates with the second power cylinder on the side near the second power cylinder.

[0011] Optionally, the brake caliper includes a transmission part, a brake part, and a connecting shaft. The transmission part is rotatably connected to the mounting bracket, and the brake part is detachably connected to one end of the transmission part. The first piston and the second piston, located on the same side, are rotatably connected to the other end of the transmission part via the connecting shaft.

[0012] Optionally, the brake caliper further includes a pivot shaft, and the transmission unit is rotatably connected to the mounting bracket via the pivot shaft.

[0013] Optionally, the brake caliper further includes a mounting shaft, the transmission part is radially inserted into the brake part along the rotating shaft, the mounting shaft passes through the transmission part and the brake part, and the mounting shaft is parallel to the rotating shaft.

[0014] Optionally, the distance between the connecting shaft and the rotating shaft is greater than the distance between the rotating shaft and the mounting shaft.

[0015] Optionally, the brake unit is provided with a heat dissipation element, which includes a heat dissipation substrate and a plurality of heat dissipation fins, the plurality of heat dissipation fins being evenly connected to the heat dissipation substrate at intervals.

[0016] Optionally, the side of the heat sink near the rotating shaft is provided with an arc-shaped structure that adapts to the outer wall of the rotating shaft.

[0017] Optionally, the transmission part is provided with a plurality of heat-conducting plates at one end near the heat sink, the plurality of heat-conducting plates are inserted between the plurality of heat sinks, and the mounting shaft passes through the plurality of heat sinks and the plurality of heat-conducting plates.

[0018] On the other hand, a disc brake device is provided, including a brake disc and the above-mentioned disc brake mechanism, wherein the brake disc is disposed between two brake calipers.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. In the disc brake mechanism of the present invention, a first power through-hole and a second power through-hole are provided between the first power element and the second power element, which are interconnected. Power is input into the power input hole of the first power cylinder, i.e., gas or liquid is introduced. The gas or liquid not only drives the two first pistons away from each other, but also enters the second power cylinder through the first power through-hole and the second power through-hole, driving the two second pistons away from each other. Due to the small structure, the time difference between the movement of the first piston and the second piston can be ignored. The first piston and the second piston located on the same side can push one end of the brake caliper on the same side. According to the lever principle, the other end of the brake caliper will move towards the brake disc until both brake calipers are in contact with the surface of the brake disc, thereby achieving the braking effect. Compared with the existing multi-cylinder disc brake device, only one pipe is needed to input power to one of the power elements to achieve the coordinated movement of multiple power elements, which simplifies the structure, improves the heat dissipation effect, and makes installation simpler.

[0021] 2. In the disc brake mechanism of the present invention, the distance between the connecting shaft and the rotating shaft is greater than the distance between the rotating shaft and the mounting shaft. According to the lever principle, with the rotating shaft as the fulcrum, the power arm of the connecting shaft and the rotating shaft is greater than the resistance arm of the mounting shaft and the rotating shaft. Therefore, the power element only needs to provide a small power to drive the brake part to apply a greater pressure on the brake disc, thereby forming a force multiplier structure and improving the braking effect. Without increasing the power of the power element, it can also ensure a good braking effect.

[0022] 3. Most current braking devices lack effective heat dissipation structures. However, in the disc brake mechanism of this invention, a heat dissipation element is provided on the brake part. Through the spaced heat dissipation fins, air can enter the gaps between the heat dissipation fins, thereby better removing the heat generated by the brake part during braking, resulting in better heat dissipation. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the disc brake device of the present invention;

[0025] Figure 2 This is an exploded schematic diagram of the disc brake device of the present invention;

[0026] Figure 3This is a schematic diagram of the structure of the first power element and the second power element of the disc brake device of the present invention.

[0027] Figure 4 This is a perspective view of the first and second power elements of the disc brake device of the present invention;

[0028] Figure 5 This is a schematic diagram of the lever principle of the disc brake device of the present invention;

[0029] Figure 6 This is a schematic diagram of the heat dissipation element of the disc brake device of the present invention.

[0030] In the diagram: 1. Mounting bracket; 11. Rotating hole; 2. First power element; 21. First power cylinder; 22. First piston; 23. Power input hole; 24. First power through hole; 3. Second power element; 31. Second power cylinder; 32. Second piston; 33. Second power through hole; 4. Brake caliper; 41. Transmission unit; 42. Brake unit; 43. Connecting shaft; 44. Rotating shaft; 45. Mounting shaft; 46. Heat-conducting fin; 5. Heat dissipation element; 51. Heat dissipation base plate; 52. Heat dissipation fin; 6. Brake disc. Detailed Implementation

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] In the description of this invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0034] like Figures 1 to 6As shown, the present invention provides a disc brake mechanism, which is mainly used in two-wheeled or three-wheeled vehicles such as motorcycles and bicycles, including a mounting bracket 1, a first power element 2, a second power element 3 and two brake calipers 4.

[0035] For ease of explanation, the directions mentioned in this embodiment are as follows: Figure 1 and Figure 2 As shown.

[0036] Specifically, both the first power element 2 and the second power element 3 are cylinders. In some other embodiments, the first power element 2 and the second power element 3 may also be hydraulic cylinders.

[0037] like Figures 1 to 4 As shown, the first power element 2 is mounted on the mounting bracket 1. The first power element 2 includes a first power cylinder 21 and two first pistons 22. The first power cylinder 21 has a hollow structure. The two first pistons 22 are respectively located on the left and right sides of the first power cylinder 21. Both first pistons 22 are movably connected to the first power cylinder 21. The first power cylinder 21 is provided with a power input hole 23 and a first power through hole 24. The power input hole 23 is located on the upper side of the first power cylinder 21, and the first power through hole 24 is symmetrically located on the lower side of the first power cylinder 21.

[0038] Furthermore, such as Figure 4 As shown, the second power element 3 is mounted on the mounting bracket 1. The second power element 3 includes a second power cylinder 31 and two second piston parts 32. The second power cylinder 31 has a hollow structure. The two second piston parts 32 are respectively located on the left and right sides of the second power cylinder 31. Both second piston parts 32 are movably connected to the second power cylinder 31. The second power cylinder 31 is provided with a second power through hole 33. The second power cylinder 31 is located on the lower side of the first power cylinder 21 and is fixedly connected to the first power cylinder 21. The second power through hole 33 is located on the upper side of the first power cylinder 21 and communicates with the first power through hole 24.

[0039] More specifically, two brake calipers 4 are symmetrically arranged on both sides of the mounting bracket 1, and both brake calipers 4 are rotatably connected to the mounting bracket 1. The two ends of the first power element 2 are rotatably connected to the two brake calipers 4 respectively, and the two ends of the second power element 3 are rotatably connected to the two brake calipers 4 respectively.

[0040] It is understandable that a first power through hole 24 and a second power through hole 33 are provided between the first power element 2 and the second power element 3 to communicate with each other. Power is input into the power input hole 23 of the first power cylinder 21, that is, gas is introduced. The gas not only drives the two first pistons 22 away from each other, but also enters the second power cylinder 31 through the first power through hole 24 and the second power through hole 33, driving the two second pistons 32 away from each other. Due to the small structure, the time difference between the movement of the first piston 22 and the second piston 32 can be ignored. The first piston 22 and the second piston 32 located on the same side can push one end of the brake caliper 4 on the same side. According to the lever principle, the other end of the brake caliper 4 will move towards the brake disc 6 until both brake calipers 4 are in contact with the surface of the brake disc 6, thereby playing the role of braking. Only one pipe is needed to input power to one of the power elements to achieve the common movement of multiple power elements, which can simplify the structure, improve the heat dissipation effect, and make the installation simpler.

[0041] In some embodiments, the first power cylinder 21 and the second power cylinder 31 are further provided with sealing rings, which can improve the sealing effect of the first power element 2 and the second power element 3.

[0042] In some embodiments, the first piston member 22 is provided with a first limiting structure that cooperates with the first power cylinder 21 on the side near the first power cylinder 21, and the second piston member 32 is provided with a second limiting structure that cooperates with the second power cylinder 31 on the side near the second power cylinder 31. Like ordinary cylinders or hydraulic cylinders, they are provided with similar two protruding structures to limit the positional relationship between the piston and the cylinder body.

[0043] In some embodiments, such as Figure 1 and Figure 2 As shown, the brake caliper 4 includes a transmission part 41, a brake part 42, and a connecting shaft 43. The transmission part 41 is rotatably connected to the mounting bracket 1, and the brake part 42 is detachably connected to one end of the transmission part 41. The first piston 22 and the second piston 32, located on the same side, are rotatably connected to the other end of the transmission part 41 through the connecting shaft 43. The transmission part 41 mainly functions to transmit power and realize lever rotation. The brake part 42 is used to fit against the brake disc 6 to achieve the braking function. The transmission part 41 and the brake part 42 are detachable. When the brake part 42 is severely worn, it is easy to replace it with a new brake part 42, making it more convenient to use and effectively ensuring the safety of braking.

[0044] In some embodiments, such as Figure 1 and Figure 2As shown, the brake caliper 4 also includes a rotating shaft 44. The transmission part 41 is rotatably connected to the mounting bracket 1 via the rotating shaft 44. The rotating shaft 44 is used to provide a fulcrum for rotation, so that the transmission part 41 can rotate around the mounting bracket 1.

[0045] Specifically, such as Figure 1 and Figure 2 As shown, the mounting bracket 1 is provided with a rotating hole 11 for mounting the rotating shaft 44. The rotating hole 11 extends in the vertical direction, and the rotating shaft 44 passes through the transmission part 41 and the rotating hole 11, thereby mounting the transmission part 41 on the mounting bracket 1 and enabling the transmission part 41 to rotate relative to the mounting bracket 1.

[0046] According to the lever principle, such as Figure 5 As shown, the first power element 2 and the second power element 3 drive the rear end of the transmission part 41, the transmission part 41 rotates around the rotating shaft 44, and the front end of the transmission part 41 moves towards the brake disc 6, that is, it drives the brake part 42 to approach the brake disc 6, until the two brake parts 42 of the two brake calipers 4 are in contact with the surface of the brake disc 6, thereby playing the role of braking. Only one pipe is needed to input power to one of the power elements to realize the joint movement of multiple power elements, which can simplify the structure, improve the heat dissipation effect, and make the installation simpler.

[0047] In some embodiments, the rotating shaft 44 can be a bolt with a smooth surface in the middle, and the end of the bolt is provided with a matching nut. The installation is achieved by the cooperation of the bolt and the nut, which ensures a firm installation without hindering the rotation of the transmission part 41.

[0048] In some embodiments, such as Figure 1 and Figure 2 As shown, the brake caliper 4 also includes a mounting shaft 45. The transmission part 41 is radially inserted into the brake part 42 along the rotating shaft 44. Specifically, the brake part 42 has an opening on the rear side. The front end of the transmission part 41 is inserted into the brake part 42 from back to front. The mounting shaft 45 passes through the transmission part 41 and the brake part 42 from top to bottom. The mounting shaft 45 is parallel to the rotating shaft 44, which can ensure that the overall force is even, the overall structure is more stable, not easily damaged, and has a longer service life.

[0049] Furthermore, the mounting shaft 45 can also be a bolt with a smooth surface in the middle, and the end of the bolt is provided with a matching nut. Installation is achieved by the cooperation of the bolt and nut, making the installation more secure.

[0050] In some embodiments, such as Figure 5As shown, the distance between the connecting shaft 43 and the rotating shaft 44 is greater than the distance between the rotating shaft 44 and the mounting shaft 45. The distance between the connecting shaft 43 and the rotating shaft 44 is also greater than the distance between the rotating shaft 44 and the mounting shaft 45. According to the lever principle, with the rotating shaft 44 as the fulcrum, the power arm of the connecting shaft 43 and the rotating shaft 44 is greater than the resistance arm of the mounting shaft 45 and the rotating shaft 44. Therefore, the power element only needs to provide a small amount of power to drive the brake part 42 to apply a larger pressure on the brake disc 6, thereby forming a force multiplier structure and improving the braking effect. Without increasing the power of the power element, it can also ensure a good braking effect.

[0051] In some embodiments, such as Figure 1 and Figure 2 As shown, the brake unit 42 is equipped with a heat dissipation element 5, which can improve the heat dissipation effect of the entire disc brake mechanism.

[0052] In some embodiments, such as Figure 6 As shown, the heat dissipation element 5 includes a heat dissipation substrate 51 and a plurality of heat sinks 52, which are evenly connected to the heat dissipation substrate 51 at intervals.

[0053] In some embodiments, the side of the heat sink 52 closest to the rotating shaft 44 is designed with an arc-shaped structure that adapts to the outer wall of the rotating shaft 44. This allows the heat sink 52 to rotate around the rotating shaft 44 more effectively, reducing impacts. Furthermore, compared to a flat surface, the arc-shaped structure allows the heat sink 52 to be closer to the rotating shaft 44. It is understood that the brake part 42 is also closer to the rotating shaft 44. According to the lever principle, the lever arm between the brake part 42 and the rotating shaft 44 is shorter. With the power remaining constant, the brake part 42 outputs greater pressure to the brake disc 6. Through this design, while maintaining the same power, the two brake parts 42 can provide greater pressure to the brake disc 6, thereby improving the braking effect.

[0054] In some embodiments, the side of the heat sink 52 away from the brake disc 6 has an arc-shaped structure, which facilitates airflow into the gap between the heat sinks 52 and improves the heat dissipation effect.

[0055] Most current braking devices lack effective heat dissipation structures and rely on airflow to carry away the heat generated between the braking mechanism and the brake disc 6. However, in the disc brake mechanism of this invention, a heat dissipation base plate 51 is provided on the brake caliper 4. The heat generated by the braking part 42 during braking can be transferred to the heat dissipation fins 52 through the heat dissipation base plate 51. Through the spaced heat dissipation fins 52, airflow can enter the gaps between the heat dissipation fins 52, increasing the heat dissipation area and thus improving the heat dissipation effect. The spaced heat dissipation fins 52 can better carry away the heat generated by the braking part 42 during braking, resulting in better heat dissipation.

[0056] In some embodiments, the transmission part 41 is provided with a plurality of heat-conducting plates 46 at one end near the heat sink 52. The plurality of heat-conducting plates 46 are inserted between the plurality of heat sinks 52. The mounting shaft 45 passes through the plurality of heat sinks 52 and the plurality of heat-conducting plates 46. The heat generated by the braking part 42 when braking can be transferred to the heat sink 52 through the heat dissipation substrate 51. In addition to being carried away by the flowing air, the heat on the heat sink 52 can also be transferred to the heat-conducting plates 46. The heat-conducting plates 46 can transfer the heat to the entire transmission part 41. It can be understood that the heat on the braking part 42 can be transferred to more places, further improving the heat dissipation effect.

[0057] like Figure 1 and Figure 2 As shown, the present invention also provides a disc brake device, which is mainly used in two-wheeled or three-wheeled vehicles such as motorcycles and bicycles, including a brake disc 6 and the above-mentioned disc brake mechanism, wherein the brake disc 6 is disposed between two brake calipers 4.

[0058] Specifically, during braking, power is input into the power input port 23 of the first power cylinder 21, i.e., gas is introduced. This gas not only drives the two first pistons 22 away from each other, but also enters the second power cylinder 31 through the first power through-hole 24 and the second power through-hole 33, driving the two second pistons 32 away from each other. Due to the small size of the structure, the time difference between the movement of the first piston 22 and the second piston 32 is negligible. The first piston 22 and the second piston 32, located on the same side, can push one end of the brake caliper 4 on the same side. According to the lever principle, the other end of the brake caliper 4 will move towards the brake disc 6 until both brake calipers 4 are in contact with the surface of the brake disc 6, thus achieving the braking effect. Compared with existing multi-cylinder disc brake devices, only one pipe is needed to input power to one power element to achieve the coordinated movement of multiple power elements, simplifying the structure, improving heat dissipation, and making installation simpler.

[0059] Furthermore, the brake disc 6 is ring-shaped, and the brake part 42 is an arc shape that matches the brake disc 6. The structure is simple and does not hinder the normal driving of the vehicle.

[0060] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A disc brake mechanism, characterized in that, It includes a mounting bracket (1), a first power element (2), a second power element (3), and two brake calipers (4); The first power element (2) is disposed on the mounting bracket (1). The first power element (2) includes a first power cylinder (21) and two first pistons (22). The first power cylinder (21) is a hollow structure. The two first pistons (22) are respectively disposed on both sides of the first power cylinder (21). The two first pistons (22) are movably connected to the first power cylinder (21). The first power cylinder (21) is provided with a power input hole (23) and a first power through hole (24). The second power element (3) is disposed on the mounting bracket (1). The second power element (3) includes a second power cylinder (31) and two second piston parts (32). The second power cylinder (31) has a hollow structure. The two second piston parts (32) are respectively disposed on both sides of the second power cylinder (31). The two second piston parts (32) are movably connected to the second power cylinder (31). The second power cylinder (31) is provided with a second power through hole (33). The second power through hole (33) communicates with the first power through hole (24). Two brake calipers (4) are symmetrically arranged on both sides of the mounting bracket (1). Both brake calipers (4) are rotatably connected to the mounting bracket (1). The two ends of the first power element (2) are rotatably connected to the two brake calipers (4) respectively. The two ends of the second power element (3) are rotatably connected to the two brake calipers (4) respectively.

2. The disc brake mechanism according to claim 1, characterized in that, The first piston (22) is provided with a first limiting structure that cooperates with the first power cylinder (21) on the side near the first power cylinder (21), and the second piston (32) is provided with a second limiting structure that cooperates with the second power cylinder (31) on the side near the second power cylinder (31).

3. The disc brake mechanism according to claim 1, characterized in that, The brake caliper (4) includes a transmission part (41), a brake part (42) and a connecting shaft (43). The transmission part (41) is rotatably connected to the mounting bracket (1). The brake part (42) is detachably connected to one end of the transmission part (41). The first piston (22) and the second piston (32) located on the same side are rotatably connected to the other end of the transmission part (41) through the connecting shaft (43).

4. The disc brake mechanism according to claim 3, characterized in that, The brake caliper (4) also includes a rotating shaft (44), and the transmission part (41) is rotatably connected to the mounting bracket (1) via the rotating shaft (44).

5. The disc brake mechanism according to claim 4, characterized in that, The brake caliper (4) further includes a mounting shaft (45), the transmission part (41) is inserted into the brake part (42) radially along the rotating shaft (44), the mounting shaft (45) passes through the transmission part (41) and the brake part (42), and the mounting shaft (45) is parallel to the rotating shaft (44).

6. The disc brake mechanism according to claim 5, characterized in that, The distance between the connecting shaft (43) and the rotating shaft (44) is greater than the distance between the rotating shaft (44) and the mounting shaft (45).

7. The disc brake mechanism according to claim 6, characterized in that, The brake part (42) is provided with a heat dissipation element (5), which includes a heat dissipation substrate (51) and a plurality of heat dissipation fins (52), and the plurality of heat dissipation fins (52) are evenly connected to the heat dissipation substrate (51) at intervals.

8. The disc brake mechanism according to claim 7, characterized in that, The heat sink (52) is provided with an arc-shaped structure on the side near the rotating shaft (44) to match the outer wall of the rotating shaft (44).

9. The disc brake mechanism according to claim 8, characterized in that, The transmission part (41) has a plurality of heat-conducting plates (46) at one end near the heat sink (52), and the plurality of heat-conducting plates (46) are inserted between the plurality of heat sinks (52). The mounting shaft (45) passes through the plurality of heat sinks (52) and the plurality of heat-conducting plates (46).

10. A disc brake device, characterized in that, It includes a brake disc (6) and a disc brake mechanism as described in any one of claims 1 to 9, wherein the brake disc (6) is disposed between the two brake calipers (4).

Images