Motorcycle caliper and motorcycle

Abstract

The utility model provides a kind of motorcycle calipers and motorcycle. Among them, motorcycle calipers include left caliper body and right caliper body of setting pair, left caliper body and right caliper body detachably connect, and integrated hole is equipped on left caliper body or right caliper body, oil circuit connecting piece is equipped on integrated hole, oil inlet passage is opened on oil circuit connecting piece, and exhaust groove that communicates with oil inlet passage is opened in the free end of oil circuit connecting piece, and blanking piece is detachably connected in exhaust groove, and oil outlet passage is equipped on blanking piece;Blanking piece has abutting position and open position, when blanking piece is located in abutting position, oil inlet passage and oil outlet passage are cut off, and when blanking piece is located in open position, oil inlet passage and oil outlet passage are communicated. The utility model integrates oil circuit system and exhaust system as a whole, simplifies the overall structure of caliper, improves sealing, has the advantages of compact structure, simple assembly, good sealing and flexible adjustment of exhaust passage, and the efficiency is higher when exhausting.

Description

Technical Field

[0001] This utility model relates to the field of motorcycle technology, and in particular to a motorcycle caliper and a motorcycle. Background Technology

[0002] Brake calipers are clamp devices that slow down, stop, or keep a moving wheel stationary. They are widely used in electric vehicles, cars, and motorcycles, providing excellent braking performance and protecting people's safety.

[0003] In the existing technology, the caliper's oil pipe is used to pass oil to form braking, and the venting component is used to discharge the hydraulic oil inside the caliper during oil maintenance. The oil pipe and venting component are respectively set on the caliper. Therefore, the overall structure of the caliper requires the assembly of more parts, resulting in low integration of the caliper. The caliper is time-consuming and inefficient in production and assembly. Summary of the Invention

[0004] This utility model provides a motorcycle caliper and a motorcycle to solve the technical problem of low integration of the caliper caused by the separate installation of the oil pipe and exhaust components.

[0005] This utility model provides a motorcycle caliper and a motorcycle. The motorcycle caliper includes a left caliper body and a right caliper body that are mated together. The left caliper body and the right caliper body are detachably connected. An integrated hole is provided on the left caliper body or the right caliper body. An oil passage connector is provided on the integrated hole. An oil inlet channel is opened on the oil passage connector. An exhaust groove communicating with the oil inlet channel is opened on the free end of the oil passage connector. A sealing member is detachably connected in the exhaust groove. The sealing member can move closer to or away from the oil inlet channel along the axial direction of the exhaust groove. An oil drain channel is provided on the sealing member.

[0006] The sealing member has a pressing position and an open position. When the sealing member is in the pressing position, the oil inlet channel and the oil outlet channel are cut off. When the sealing member is in the open position, the oil inlet channel and the oil outlet channel are connected.

[0007] In one embodiment of the present invention, the oil inlet channel has an oil inlet hole arranged radially along the oil passage connector and an oil delivery hole arranged axially. The connection between the oil delivery hole and the exhaust groove is provided with a connection port. At least a portion of the sealing member enters the oil delivery hole. When the sealing member moves downward, the gap between the sealing member and the connection port gradually decreases. When the sealing member is in the tight position, the gap between the sealing member and the connection port is zero.

[0008] In one embodiment of the present invention, the sealing member has a connecting part and a sealing part. The connecting part is used to connect with the oil circuit connector. The sealing part is located in the vent groove and the diameter of the sealing part is smaller than the diameter of the vent groove. The oil discharge channel includes an oil outlet hole arranged radially along the sealing member and an oil discharge hole arranged axially.

[0009] In one embodiment of this utility model, the connection port is a conical opening with a diameter that gradually decreases from the outside to the inside, the sealing part is a conical part, and the taper of the conical part is smaller than the taper of the conical opening.

[0010] In one embodiment of this utility model, the connecting part is threadedly connected to the oil circuit connector, and the inner wall of the exhaust groove is provided with a sealing ring.

[0011] In one embodiment of the present invention, an oil pipe is provided on the outer end face of the integrated hole, the oil passage connector is sleeved inside the oil pipe, the oil passage connector is threadedly connected to the integrated hole, and the oil passage connector presses the oil pipe against the outer end face of the integrated hole.

[0012] In one embodiment of the present invention, a first piston is provided in the left caliper body, and a first disc brake pad is provided on the first piston; a second piston is provided in the right caliper body, and a second disc brake pad is provided on the second piston; the brake disc of the motorcycle is located between the first disc brake pad and the second disc brake pad.

[0013] In one embodiment of the present invention, the right caliper body is provided with a positioning rod, and the left caliper body is provided with a positioning hole for inserting the positioning rod. The positioning rod is inserted into the first disc brake pad and the second disc brake pad.

[0014] In one embodiment of the present invention, a limiting block is provided between the left caliper and the right caliper. One end of the limiting block is engaged with the outer end face of the left caliper and the right caliper, and the other end passes around the positioning rod and is located between the first disc brake pad and the second disc brake pad.

[0015] This utility model also provides a motorcycle, which includes the motorcycle caliper described above.

[0016] The beneficial effects of this utility model are as follows: The motorcycle caliper and motorcycle proposed in this utility model integrate the oil circuit system and the exhaust system into one unit through the design of integrated oil circuit connector and adjustable sealing component, which simplifies the overall structure of the caliper and improves the sealing performance. It has the advantages of compact structure, easy assembly, good sealing performance and flexible adjustment of exhaust channel, and higher efficiency during exhaust. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0018] In the attached diagram:

[0019] Figure 1 This is a schematic diagram of a structure provided for an embodiment of the present utility model;

[0020] Figure 2 This is an exploded view provided in one embodiment of the present invention;

[0021] Figure 3 This is a cross-sectional view provided in one embodiment of the present utility model;

[0022] Figure 4 This is an enlarged view of point A provided in one embodiment of this utility model.

[0023] The attached figures are labeled as follows:

[0024] Left caliper 1, right caliper 2, integrated hole 3, oil pipe 4, oil circuit connector 5, oil inlet 501, oil outlet 502, connection port 503, exhaust groove 504, sealing ring 505, plug 6, plug part 601, oil outlet 602, drain hole 603, connection part 604, first piston 7, first disc brake pad 8, second piston 9, second disc brake pad 10, positioning rod 11, positioning hole 12, limit block 13, brake disc 14. Detailed Implementation

[0025] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0026] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0027] In the following description, numerous details are explored to provide a more thorough explanation of embodiments of the present invention. However, it will be apparent to those skilled in the art that embodiments of the present invention may be practiced without these specific details. In other embodiments, well-known structures and devices are shown in block diagram form rather than in detail to avoid obscuring embodiments of the present invention.

[0028] Please see Figures 1-4 One embodiment of this utility model provides a motorcycle caliper.

[0029] In an exemplary embodiment, a motorcycle caliper includes a left caliper body 1 and a right caliper body 2 that are coupled together. The left caliper body 1 and the right caliper body 2 are detachably connected. An integrated hole 3 is provided on the left caliper body 1 or the right caliper body 2. An oil passage connector 5 is provided on the integrated hole 3. An oil inlet channel is opened on the oil passage connector 5. An exhaust groove 504 communicating with the oil inlet channel is opened on the free end of the oil passage connector 5. A sealing member 6 is detachably connected in the exhaust groove 504. The sealing member 6 can move closer to or away from the oil inlet channel along the axial direction of the exhaust groove 504. An oil drain channel is provided on the sealing member 6.

[0030] The sealing component 6 has a tight position and an open position. When the sealing component 6 is in the tight position, the oil inlet channel and the oil outlet channel are cut off. When the sealing component 6 is in the open position, the oil inlet channel and the oil outlet channel are connected.

[0031] In this embodiment, the low assembly efficiency caused by the separation of the oil circuit connection and the exhaust structure is solved by structural integration. The oil circuit connector 5 simultaneously serves as both an oil supply and exhaust channel, reducing the number of independent components. The axial movement control of the sealing component 6 achieves unified operation of oil circuit on / off and exhaust functions, simplifying the assembly process. Specifically, in the braking state, the sealing component 6 is in the tight position, cutting off the oil drain channel and ensuring the hydraulic system's sealing. During maintenance, by adjusting the sealing component 6 to the open position, the oil inlet and outlet channels can be connected, achieving both exhaust and oil drain functions. Compared to the separate oil circuit interface and exhaust valve structure in existing technologies, this solution significantly improves the space utilization of components through functional integration, while reducing assembly complexity. It simplifies the caliper structure while ensuring caliper functionality, thereby improving caliper production and assembly efficiency.

[0032] In an exemplary embodiment, the oil inlet channel has an oil inlet hole 501 arranged radially along the oil passage connector 5 and an oil delivery hole 502 arranged axially. The connection between the oil delivery hole 502 and the exhaust groove 504 is provided with a connection port 503. At least a portion of the sealing member 6 enters the oil delivery hole 502. When the sealing member 6 moves downward, the gap between the sealing member 6 and the connection port 503 gradually decreases. When the sealing member 6 is in the tight position, the gap between the sealing member 6 and the connection port 503 is zero.

[0033] In this embodiment, the directional delivery of hydraulic oil is achieved through an L-shaped oil circuit design. The radial inlet 501 facilitates connection to the oil pipe 4, while the axial outlet 502 ensures straight oil flow. The conical mating structure formed by the connector 503 and the sealing element 6 has self-centering characteristics. During the axial movement of the sealing element 6, the sealing gap changes linearly, ultimately achieving a zero-gap metal-to-metal contact seal at the mating position. Compared with existing technologies, this solution precisely controls the sealing gap through geometric fit and directly adjusts the sealing pressure using axial displacement, ensuring dynamic sealing reliability while avoiding leakage problems caused by the aging of traditional seals. The positioning function of the connector 503 and the motion guiding function of the sealing element 6 work together to ensure that the sealing surface remains precisely aligned, maintaining a stable sealing effect even under motorcycle vibration conditions.

[0034] For example, in this embodiment, the oil inlet 501 and the oil outlet 502 form an L-shaped oil passage structure, wherein the oil inlet 501 is arranged perpendicular to the axis of the oil passage connector 5, and the oil outlet 502 is arranged parallel to the axis. The connection port 503 can adopt a conical structure, and its cone angle is preferably in the range of 30°-60°. The part of the sealing member 6 that enters the oil outlet 502 can be set as conical, and its cone angle is smaller than that of the connection port 503 to achieve a progressive seal. As a preferred embodiment, the mating surface between the sealing member 6 and the connection port 503 can be hardened, and the surface roughness is controlled to be below Ra0.8. In another embodiment, an annular sealing groove can be provided at the connection port 503 for installing an oil-resistant rubber ring as an auxiliary seal.

[0035] It is worth noting that in this embodiment, multiple oil inlet holes 501 can be provided to improve oil inlet efficiency.

[0036] In an exemplary embodiment, the sealing member 6 has a connecting part 604 and a sealing part 601. The connecting part 604 is used to connect with the oil circuit connector 5. The sealing part 601 is located in the vent groove 504 and the diameter of the sealing part 601 is smaller than the diameter of the vent groove 504. The oil discharge channel includes an oil outlet hole 602 arranged radially along the sealing member 6 and an oil discharge hole 603 arranged axially.

[0037] In this embodiment, the connecting part 604 serves as a mechanical connection, and the sealing part 601 is used for oil circuit control. When the sealing part 6 is in the tight position, the sealing part 601 and the connecting port 503 form a surface contact seal, completely blocking the oil inlet channel; when in the open position, the oil sequentially passes through the oil inlet channel, the annular gap formed between the vent groove 504 and the sealing part 601, the radial oil outlet 602, and the axial oil outlet 603 to form a complete discharge path. Compared with the separate oil circuit and vent structure in the prior art, this solution integrates the connection function and oil circuit control into a single sealing part 6. Only one positioning is required during assembly to complete the dual-function configuration, reducing the number of parts and ensuring sealing reliability through dimensional fit. The tapered mating surface design allows the sealing part 601 to automatically compensate for wear gaps during axial movement, maintaining long-term sealing performance.

[0038] For example, in this embodiment, the connecting part 604 can be detachably fixed to the oil circuit connector 5 by means of threaded connection, snap-fit ​​connection or flange connection. In a specific embodiment, the connecting part 604 and the top of the vent groove 504 are connected by threads, which can achieve a stable connection and seal the vent groove 504 at the same time. The design of the sealing part 601 with a diameter smaller than the diameter of the vent groove 504 forms an annular gap channel of 0.1-0.5mm. This size range can ensure oil flow and maintain sealing pressure. The radial oil outlet 602 can be set as 2-4 evenly distributed channels, with a hole diameter preferably 1-2mm; the axial oil outlet 603 can adopt a stepped hole structure, with the hole diameter near the oil outlet 602 being larger than the hole diameter at the far end to form a pressure gradient. A sealing ring groove can be provided on the end face of the sealing part 601, and an O-ring seal 505 is built in to enhance the sealing effect under tight conditions.

[0039] For example, the connection port 503 is a conical opening with a diameter that gradually decreases from the outside to the inside, and the sealing part 601 is a conical part with a taper smaller than that of the conical opening. The mating relationship of the conical structures achieves a triple sealing effect: First, the radial force generated by the conical surface contact creates a self-tightening effect on the sealing surface, automatically compensating for axial assembly deviations; second, the smaller taper of the sealing part 601 allows for greater radial deformation under the same axial displacement, resulting in higher surface pressure sealing; finally, the progressive contact formed by the taper difference avoids edge stress concentration and extends the service life of the seal. In a more specific embodiment, the conical opening can have a taper angle range of 30°-60°, and the taper angle of the sealing part 601 is 3°-10° smaller than that of the connection port 503. As a preferred embodiment, the taper angle of the connection port 503 is 45°, and the taper angle of the sealing part 601 is 40°.

[0040] For example, the connecting part 604 is threadedly connected to the oil circuit connector 5, and the inner wall of the vent groove 504 is provided with a sealing ring 505. In this embodiment, the axial preload generated by the threaded connection keeps the sealing member 6 stably pressed into the abutment position, avoiding sealing failure caused by hydraulic fluctuations.

[0041] In an exemplary embodiment, an oil pipe 4 is provided on the outer end face of the integrated hole 3, an oil passage connector 5 is fitted inside the oil pipe 4, the oil passage connector 5 is threadedly connected to the integrated hole 3 and the oil passage connector 5 presses the oil pipe 4 against the outer end face of the integrated hole 3.

[0042] In this embodiment, by fixing the oil circuit connector 5 to the integrated hole 3 and simultaneously covering the oil pipe 4 with the oil circuit connector 5, the oil pipe 4 is pressed tightly against the outer end face of the integrated hole 3 while installing the oil circuit connector 5, thereby improving the fixing effect of the oil pipe 4.

[0043] For example, the oil pipe 4 can be a rigid metal pipe or an oil-resistant rubber hose, and its overall shape is spherical to improve oil intake efficiency.

[0044] In an exemplary embodiment, a first piston 7 is provided in the left caliper 1, and a first disc brake pad 8 is provided on the first piston 7; a second piston 9 is provided in the right caliper 2, and a second disc brake pad 10 is provided on the second piston 9; the motorcycle's brake disc 14 is located between the first disc brake pad 8 and the second disc brake pad 10.

[0045] In this embodiment, the symmetrically arranged piston and disc brake pad structure ensures that the brake disc 14 experiences a balanced clamping force in both directions during braking. Specifically, the first piston 7 of the left caliper 1 pushes the first disc brake pad 8 to the right, while the second piston 9 of the right caliper 2 pushes the second disc brake pad 10 to the left, thus creating a bidirectional clamping force on the brake disc 14. Compared to traditional structures with unilateral force application, this design effectively avoids uneven wear during braking and improves braking stability. By optimizing the piston diameter and disc brake pad friction coefficient, a greater braking torque can be achieved under the same hydraulic pressure. Furthermore, the symmetrical force-bearing structure reduces thermal deformation of the brake disc 14, extending the service life of the braking system.

[0046] For example, in this embodiment, the left clamp body 1 is provided with a first oil passage communicating with the integrated hole 3 to push the first piston 7 to move, and the right clamp body 2 is provided with a second oil passage communicating with the first oil passage to push the second piston 9 to move, thereby realizing the synchronous pushing of the first piston 7 and the second piston 9.

[0047] In an exemplary embodiment, the right caliper 2 is provided with a positioning rod 11, and the left caliper 1 is provided with a positioning hole 12 for inserting into the positioning rod 11. The positioning rod 11 is inserted into the first disc brake pad 8 and the second disc brake pad 10.

[0048] In this embodiment, the plug-in positioning structure achieves three functions: the left and right caliper bodies 2 achieve axial alignment through the cooperation of the positioning rod 11 and the positioning hole 12, controlling the assembly error within ±0.2mm; the through-type positioning rod 11 simultaneously forms a radial constraint on the disc brake pads on both sides, limiting the disc brake pad deflection to below 0.5mm; structurally, it eliminates the need for a separate disc brake pad positioning pin in the traditional solution, reducing the number of parts by two. Tests show that this design reduces the lateral displacement of the disc brake pads during braking by 67%, and shortens the caliper assembly time by 40%. Specifically, the rigid connection between the positioning rod 11 and the disc brake pad effectively suppresses disc brake pad chatter caused by brake fluid pressure fluctuations, while the plug-in structure facilitates quick disassembly and replacement of worn parts during maintenance.

[0049] For example, in this embodiment, the insertion method of the positioning rod 11 and the disc brake pad includes: opening a circular hole with a diameter slightly larger than that of the positioning rod 11 in the center of the disc brake pad, and setting a chamfer on the edge of the hole to facilitate assembly; or welding a guide sleeve on the non-working surface of the disc brake pad, with the inner diameter of the sleeve and the positioning rod 11 in clearance fit (0.05-0.1mm). As a preferred embodiment, the surface of the positioning rod 11 can be nitrided to improve wear resistance, and a 15° guide cone angle is machined at the end of the rod.

[0050] For example, a limiting block 13 is provided between the left caliper 1 and the right caliper 2. One end of the limiting block 13 is engaged with the outer end face of the left caliper 1 and the right caliper 2, and the other end passes around the positioning rod 11 and is located between the inner walls of the left caliper 1 and the right caliper 2. The caliper is stably positioned through the bidirectional constraint mechanism of the limiting block 13. The spatial staggered arrangement of the limiting block 13 and the positioning rod 11 achieves a compact design by utilizing the internal cavity of the caliper without interfering with the disc brake pad positioning function. Compared with the traditional structure that relies solely on the insertion of the positioning rod 11, this solution maintains a certain distance between the left caliper 1 and the right caliper 2 after assembly, avoiding excessive assembly that reduces the distance between them. This effectively prevents the disc brake pad from being too close to the brake disc 14, thus avoiding excessive wear on the brake disc 14.

[0051] It is worth noting that the snap-fit ​​end of the limiting block 13 can be designed as a hook-shaped structure or a flat plate structure with elastic buckles, forming an interference fit with the groove on the outer end face of the clamp body. An arc-shaped relief groove can be provided around the extension section of the positioning rod 11, with the radius of the relief groove slightly larger than the diameter of the positioning rod 11 to ensure assembly clearance. The thickness of the inner wall limiting end can gradually decrease to adapt to the casting slope of the inner wall of the clamp body. As a preferred embodiment, the contact surface between the limiting block 13 and the positioning rod 11 can be provided with a wear-resistant coating, such as polytetrafluoroethylene or a hard anodized layer.

[0052] This utility model also proposes a motorcycle, including the aforementioned motorcycle caliper.

[0053] In summary, this utility model simplifies the overall structure of the caliper by integrating the oil circuit system and the exhaust system into one unit, improves the sealing performance, and has the advantages of compact structure, easy assembly, good sealing performance and flexible adjustment of the exhaust channel, and is more efficient in exhaust.

[0054] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A motorcycle caliper, characterized in that: The device includes a left clamp and a right clamp that are arranged in opposition. The left clamp and the right clamp are detachably connected. The left clamp or the right clamp is provided with an integrated hole. The integrated hole is provided with an oil passage connector. The oil passage connector has an oil inlet channel. The free end of the oil passage connector has an exhaust groove that communicates with the oil inlet channel. A sealing member is detachably connected in the exhaust groove. The sealing member can move closer to or away from the oil inlet channel along the axial direction of the exhaust groove. The sealing member is provided with an oil drain channel. The sealing member has a pressing position and an open position. When the sealing member is in the pressing position, the oil inlet channel and the oil outlet channel are cut off. When the sealing member is in the open position, the oil inlet channel and the oil outlet channel are connected.

2. The motorcycle caliper according to claim 1, characterized in that: The oil inlet channel has an oil inlet hole arranged radially along the oil circuit connector and an oil delivery hole arranged axially. The oil delivery hole is connected to the exhaust groove with a connection port. At least a part of the sealing member enters the oil delivery hole. When the sealing member moves down, the gap between the sealing member and the connection port gradually decreases. When the sealing member is in the tight position, the gap between the sealing member and the connection port is zero.

3. The motorcycle caliper according to claim 2, characterized in that: The sealing member has a connecting part and a sealing part. The connecting part is used to connect with the oil circuit connector. The sealing part is located in the vent groove and the diameter of the sealing part is smaller than the diameter of the vent groove. The oil discharge channel includes an oil outlet hole arranged radially along the sealing member and an oil discharge hole arranged axially.

4. The motorcycle caliper according to claim 3, characterized in that: The connection port is tapered and its diameter gradually decreases from the outside to the inside. The sealing part is tapered, and the taper of the tapered part is smaller than the taper of the tapered opening.

5. The motorcycle caliper according to claim 3, characterized in that: The connecting part is threadedly connected to the oil circuit connector, and the inner wall of the exhaust groove is provided with a sealing ring.

6. The motorcycle caliper according to claim 1, characterized in that: An oil pipe is provided on the outer end face of the integrated hole, and the oil circuit connector is sleeved inside the oil pipe. The oil circuit connector is threadedly connected to the integrated hole and the oil circuit connector presses the oil pipe against the outer end face of the integrated hole.

7. The motorcycle caliper according to claim 1, characterized in that: The left caliper body is provided with a first piston, and the first piston is provided with a first disc brake pad. The right caliper body is provided with a second piston, and the second piston is provided with a second disc brake pad. The motorcycle's brake disc is located between the first disc brake pad and the second disc brake pad.

8. The motorcycle caliper according to claim 7, characterized in that: The right caliper is provided with a positioning rod, and the left caliper is provided with a positioning hole for inserting the positioning rod. The positioning rod is inserted into the first disc brake pad and the second disc brake pad.

9. The motorcycle caliper according to claim 8, characterized in that: A limiting block is provided between the left and right clamps. One end of the limiting block is engaged with the outer end face of the left and right clamps, and the other end passes around the positioning rod and is located between the inner walls of the left and right clamps.

10. A motorcycle, characterized in that: Including the motorcycle caliper as described in any one of claims 1-9.

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