Brake caliper and piston structure

Abstract

The utility model provides a kind of brake caliper and piston structure.The brake caliper includes first caliper body, second caliper body, first piston structure and second piston structure.The first piston structure is arranged in the first caliper body.The first piston structure has first oil pushing surface and first brake surface on opposite sides, the direction of the first oil pushing surface corresponds to the outside direction of the first caliper body, and the direction of the first brake surface corresponds to the inside direction of the first caliper body.The first oil pushing surface is arc-shaped.The second piston structure is arranged in the second caliper body.The second piston structure has second oil pushing surface and second brake surface on opposite sides, and the direction of the second oil pushing surface corresponds to the outside direction of the second caliper body.The second oil pushing surface is arc-shaped.The direction of the second brake surface corresponds to the inside direction of the second brake caliper.

Description

Technical Field

[0001] This utility model relates to a brake caliper and piston structure, and more particularly to a high-oil-capacity brake caliper and piston structure. Background Technology

[0002] Most existing brake calipers are two-plate calipers, with piston structures on both sides to rub against the brake disc and achieve braking. However, how to effectively utilize the piston structure to achieve good braking force remains a goal actively researched by researchers in this field.

[0003] Therefore, the applicant of this utility model believes that the above-mentioned defects can be improved. So he devoted himself to research and combined with the application of scientific principles, and finally proposed a utility model with a reasonable design that effectively improves the above-mentioned defects. Utility Model Content

[0004] The present invention provides a brake caliper and piston structure that can effectively improve the defects that may occur in existing brake calipers.

[0005] One embodiment of this utility model discloses a brake caliper, comprising: a first caliper body having at least one first mounting groove, wherein the opening direction of the at least one first mounting groove is inward of the first caliper body; a second caliper body having at least one second mounting groove, wherein the position of the at least one second mounting groove corresponds to the position of the at least one first mounting groove, and the opening direction of the at least one second mounting groove corresponds to the inward of the second caliper body; wherein the opening of the at least one second mounting groove is opposite to the opening of the at least one first mounting groove; and at least one first piston structure disposed in the at least one first mounting groove, wherein the at least one The first piston structure has a first oil-pushing surface and a first braking surface located on opposite sides along a predetermined direction. The facing direction of the first oil-pushing surface corresponds to the outer direction of the first caliper body, and the facing direction of the first braking surface corresponds to the inner direction of the first caliper body. The first oil-pushing surface is arc-shaped. The first piston structure is disposed in at least one second mounting groove. The at least one second piston structure has a second oil-pushing surface and a second braking surface located on opposite sides along the predetermined direction. The facing direction of the second oil-pushing surface corresponds to the outer direction of the second caliper body, and the facing direction of the second braking surface corresponds to the inner direction of the second caliper body. The second oil-pushing surface is arc-shaped.

[0006] Optionally, at least one of the first piston structures includes: a first piston body having a first side and a second side located on opposite sides; a first oil-pushing portion, which is an arc-shaped groove, wherein the first oil-pushing portion is disposed on the first side of the first piston body, the inner side of the arc-shaped groove is the first oil-pushing surface, and the opening direction of the arc-shaped groove corresponds to the outer direction of the first caliper body; and a first braking portion disposed on the second side of the first piston body, and the first braking portion having an opening, the facing direction of the opening corresponding to the inner direction of the first caliper body.

[0007] Optionally, the first oil-pushing part includes: a bottom section with a planar bottom surface; and a first curved section extending outward from the edge of the bottom section and forming a gradually expanding curved surface.

[0008] Optionally, the first oil-pushing part includes: a bottom section with a planar bottom surface; a first curved section extending outward from the edge of the bottom section and forming a gradually expanding curved surface; and a second curved section extending outward from the first curved section and forming a gradually expanding curved surface.

[0009] Optionally, the bending direction of the first bending segment is opposite to the bending direction of the second bending segment.

[0010] Optionally, the first brake part is cylindrical and is a groove, with the bottom and side of the groove perpendicular to each other.

[0011] Optionally, the depth of the arc-shaped groove is greater than the depth of the groove itself.

[0012] Optionally, at least one of the first piston structures has the same dimensions as at least one of the second piston structures.

[0013] One embodiment of this utility model discloses a brake caliper for mounting on a brake caliper. The piston structure has a push-oil surface and a brake surface located on opposite sides along a preset direction. The push-oil surface faces the outer side of the brake caliper, and the brake surface faces the inner side of the brake caliper. The push-oil surface is arc-shaped.

[0014] Optionally, the piston structure includes: a piston body having a first side and a second side located on opposite sides; an oil-pushing portion, which is an arc-shaped groove, wherein the oil-pushing portion is disposed on the first side of the piston body, and the opening of the arc-shaped groove faces the outer side of the brake caliper; and a braking portion, disposed on the second side of the piston body, and the opening of the braking portion faces the inner side of the brake caliper.

[0015] In summary, the brake caliper and piston structure disclosed in this utility model embodiment can increase the amount of brake fluid stored in the piston structure, thereby increasing the braking force of the piston structure, through the technical solutions of "a first piston structure having a first oil-pushing surface and a first braking surface located on opposite sides along a preset direction, the facing direction of the first oil-pushing surface corresponding to the outer direction of the first caliper body, and the first oil-pushing surface being arc-shaped" and "a second piston structure having a second oil-pushing surface and a second braking surface located on opposite sides along a preset direction, the facing direction of the second oil-pushing surface corresponding to the outer direction of the second caliper body, and the second oil-pushing surface being arc-shaped". Attached Figure Description

[0016] To further understand the features and technical content of this utility model, please refer to the following detailed description and drawings of this utility model. However, these descriptions and drawings are only used to illustrate this utility model and are not intended to limit the scope of protection of this utility model in any way.

[0017] Figure 1 This is a perspective view of the brake caliper according to an embodiment of the present utility model.

[0018] Figure 2 for Figure 1 A three-dimensional diagram from another perspective.

[0019] Figure 3 for Figure 1 A schematic diagram of its breakdown.

[0020] Figure 4 for Figure 1 A schematic diagram of a cross section along the VV line.

[0021] Figure 5 for Figure 1 A three-dimensional schematic diagram of the first piston structure.

[0022] Figure 6 for Figure 5 A three-dimensional diagram from another perspective.

[0023] Figure 7 for Figure 5 A schematic diagram of a cross section along section line VII-VII.

[0024] Explanation of reference numerals in the attached figures:

[0025] 100: Brake caliper; 1: First caliper body; 11: First mounting groove; 2: Second caliper body; 21: Second mounting groove; 3: First piston structure; 31: First piston body; 32: First oil pushing part; 321: Groove bottom section; 322: First curved section; 323: Second curved section; 33: First brake part; 4: Second piston structure; D: Preset direction; POS1: First oil pushing surface; POS2: Second oil pushing surface; BS1: First brake surface; BS2: Second brake surface; OP: Opening. Detailed Implementation

[0026] The following specific embodiments illustrate the implementation of the "brake caliper and piston structure" disclosed in this utility model. Those skilled in the art can understand the advantages and effects of this utility model from the content disclosed in this specification. This utility model can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of this utility model. Furthermore, the accompanying drawings of this utility model are for simple illustrative purposes only and are not depictions of actual dimensions, as stated in advance. The following embodiments will further describe the relevant technical content of this utility model in detail, but the disclosed content is not intended to limit the scope of protection of this utility model.

[0027] It should be understood that while terms such as "first," "second," and "third" may be used in this document to describe various components or signals, these components or signals should not be limited by these terms. These terms are primarily used to distinguish one component from another, or one signal from another. Furthermore, the term "or" as used herein should, as appropriate, include any combination of one or more of the associated listed items.

[0028] Please see Figures 1 to 7 As shown, this is an embodiment of the present invention, which discloses a brake caliper 100. The brake caliper 100 improves the amount of brake fluid stored through the design of the piston structure, thereby increasing the braking force.

[0029] It should be noted that, for ease of understanding of this embodiment, the drawings only show the structure and connection relationship of the components of the brake caliper 100, but this utility model is not limited to the drawings. The following will describe each component of the brake caliper 100 and its connection relationship.

[0030] like Figures 1 to 4As shown, the brake caliper 100 includes a first caliper body 1, a second caliper body 2, at least one first piston structure 3 disposed on the first caliper body 1, and at least one second piston structure 4 disposed on the second caliper body 2. It should be noted that the brake caliper 100 in this embodiment is a two-piece brake caliper (i.e., including the first caliper body 1 and the second caliper body 2), but this utility model is not limited to this. For example, in other embodiments of this utility model not shown, the brake caliper 100 may also be a one-piece brake caliper or may be adjusted and varied according to actual design requirements.

[0031] The first caliper body 1 has at least one first mounting groove 11. The opening direction of at least one first mounting groove 11 corresponds to the inner direction of the first caliper body 1. In this embodiment, the first caliper body 1 has two first mounting grooves 11. The opening direction of both first mounting grooves 11 corresponds to the inner direction of the first caliper body 1, but the present invention is not limited thereto. For example, in other embodiments not shown in the present invention, the first caliper body 1 may also be provided with only one first mounting groove 11 or may be adjusted and varied according to actual design requirements.

[0032] The second caliper body 2 has at least one second mounting groove 21. The position of at least one second mounting groove 21 corresponds to the position of at least one first mounting groove 11. The opening direction of at least one second mounting groove 21 corresponds to the inward direction of the second caliper body 2, and the opening of at least one second mounting groove 21 is opposite to the opening of at least one first mounting groove 11.

[0033] In this embodiment, the second caliper body 2 has two second mounting grooves 21. The opening directions of both second mounting grooves 21 correspond to the inner direction of the second caliper body 2, but the present invention is not limited thereto. For example, in other embodiments not shown in the present invention, the second caliper body 2 may also be provided with only one second mounting groove 21 or may be adjusted and varied according to actual design requirements.

[0034] like Figures 1 to 5As shown, at least one first piston structure 3 is disposed in at least one first mounting groove 11. In this embodiment, the number of at least one first piston structure 3 corresponds to the number of first mounting grooves 11 of the first caliper body 1, which is two, and two first piston structures 3 are disposed in two first mounting grooves 11, but the present invention is not limited thereto. For example, the number of at least one first piston structure 3 corresponds to the number of first mounting grooves 11 of the first caliper body 1, and can be adjusted and varied according to actual design requirements.

[0035] The first piston structure 3 has a first oil-pushing surface POS1 and a first braking surface BS1 located on opposite sides along a predetermined direction D. The facing direction of the first oil-pushing surface POS1 corresponds to the outer direction of the first caliper body 1, and the facing direction of the first braking surface BS1 corresponds to the inner direction of the first caliper body 1. The first oil-pushing surface POS1 is arc-shaped.

[0036] Specifically, such as Figures 5 to 7 As shown, the first piston structure 3 includes a first piston body 31, a first oil-pushing part 32 connected to the first piston body 31, and a first braking part 33 connected to the first piston body 31. The first piston body 31 has a first side and a second side located on opposite sides.

[0037] The first oil-pushing part 32 is an arc-shaped groove. The first oil-pushing part 32 is disposed on the first side of the first piston body 31, the inner side of the arc-shaped groove is the first oil-pushing surface POS1, and the opening direction of the arc-shaped groove corresponds to the outer direction of the first caliper body 1.

[0038] Furthermore, in one embodiment of the first oil-pushing section 32, the first oil-pushing section 32 includes a groove bottom section 321 and a first curved section 322 connecting the groove bottom section 321. The bottom surface of the groove bottom section 321 is planar. The first curved section 322 extends outward from the edge of the groove bottom section 321 and forms a gradually widening curved surface, so that the first piston structure 3 can increase the amount of brake fluid stored through the design of the first oil-pushing section 32, thereby achieving the effect of increasing braking force.

[0039] In another embodiment of the first oil-pushing part 32, the first oil-pushing part 32 of this embodiment differs from the first oil-pushing part 32 of the previous embodiment in that the first oil-pushing part 32 of this embodiment further includes a second curved section 323. The second curved section 323 extends outward from the first curved section 322 and forms a gradually expanding curved surface. The bending direction of the first curved section 322 is opposite to the bending direction of the second curved section 323, so that when the brake caliper 100 is initially installed with brake fluid, the first piston structure 3 can expel air in the brake fluid through the second curved section 323 of the first oil-pushing part 32 during the oil-pushing process, thereby allowing the brake fluid passage in the brake caliper 100 to quickly reach a vacuum state.

[0040] The first brake portion 33 is disposed on the second side of the first piston body 31, and the first brake portion 33 has an opening OP, the facing direction of which corresponds to the inner direction of the first caliper body 1. Specifically, the first brake portion 33 is cylindrical and is a recessed body. The bottom of the recessed body is perpendicular to the side, and the recessed body has the opening. It should be noted that the depth of the arc-shaped recessed body is greater than the depth of the recessed body itself.

[0041] like Figures 1 to 4 As shown, at least one second piston structure 4 is disposed in at least one second mounting groove 21. Each second piston structure 4 has a second oil-pushing surface POS2 and a second braking surface BS2 located on opposite sides along the predetermined direction D. The facing direction of the second oil-pushing surface POS2 corresponds to the outer direction of the second caliper body 2. The second oil-pushing surface POS2 is arc-shaped. The facing direction of the second braking surface BS2 corresponds to the inner direction of the second caliper body 2.

[0042] It should be noted that the dimensions and shape of the second piston structure 4 are the same as those of the first piston structure 3. Since the second piston structure 4 is identical to the first piston structure 3, further details will not be provided here.

[0043] The technical effects of this utility model embodiment are as follows:

[0044] In summary, the brake caliper and piston structure disclosed in this utility model embodiment can increase the amount of brake fluid stored in the piston structure, thereby increasing the braking force of the piston structure, through the technical solutions of "a first piston structure having a first oil-pushing surface and a first braking surface located on opposite sides along a preset direction, the facing direction of the first oil-pushing surface corresponding to the outer direction of the first caliper body, and the first oil-pushing surface being arc-shaped" and "a second piston structure having a second oil-pushing surface and a second braking surface located on opposite sides along a preset direction, the facing direction of the second oil-pushing surface corresponding to the outer direction of the second caliper body, and the second oil-pushing surface being arc-shaped".

[0045] The above-disclosed content is only a preferred and feasible embodiment of the present utility model, and is not intended to limit the patent scope of the present utility model. Therefore, all equivalent technical changes made using the contents of the present utility model specification and drawings are included in the patent scope of the present utility model.

Claims

1. A brake caliper, characterized in that, include: A first caliper body has at least one first mounting groove, wherein the opening direction of at least one first mounting groove corresponds to the inward direction of the first caliper body; A second caliper body has at least one second mounting groove, wherein the position of at least one second mounting groove corresponds to the position of at least one first mounting groove, and the opening direction of at least one second mounting groove corresponds to the inward direction of the second caliper body; wherein the opening of at least one second mounting groove is opposite to the opening of at least one first mounting groove. At least one first piston structure is disposed in at least one first mounting recess, wherein the at least one first piston structure has a first oil-pushing surface and a first braking surface located on opposite sides along a predetermined direction, the facing direction of the first oil-pushing surface corresponding to the outer direction of the first caliper body, and the facing direction of the first braking surface corresponding to the inner direction of the first caliper body; wherein the first oil-pushing surface is arc-shaped; and At least one second piston structure is disposed in at least one second mounting groove, wherein the at least one second piston structure has a second oil pushing surface and a second braking surface located on opposite sides along the preset direction, the facing direction of the second oil pushing surface corresponds to the outer direction of the second caliper body, and the facing direction of the second braking surface corresponds to the inner direction of the second caliper body; wherein the second oil pushing surface is arc-shaped.

2. The brake caliper as described in claim 1, characterized in that, At least one of the first piston structures includes: A first piston body having a first side and a second side located on opposite sides; A first oil-pushing part is an arc-shaped groove, wherein the first oil-pushing part is disposed on the first side of the first piston body, the inner side of the arc-shaped groove is the first oil-pushing surface, and the opening direction of the arc-shaped groove corresponds to the outer direction of the first caliper body; and A first braking part is disposed on the second side of the first piston body, and the first braking part has an opening, the facing direction of which corresponds to the inner direction of the first caliper body.

3. The brake caliper as described in claim 2, characterized in that, The first oiling part includes: The bottom section of the trough has a flat bottom surface; and A first curved section extends outward from the edge of the bottom section of the groove and forms a gradually expanding curved surface.

4. The brake caliper as described in claim 2, characterized in that, The first oiling part includes: The bottom section of the trough has a flat bottom surface; A first curved section extends outward from the edge of the groove bottom section and forms a gradually widening curved surface; and A second curved segment extends outward from the first curved segment and forms a gradually expanding curved surface.

5. The brake caliper as described in claim 4, characterized in that, The bending direction of the first bending segment is opposite to that of the second bending segment.

6. The brake caliper as described in claim 2, characterized in that, The first brake part is cylindrical and is a groove, with the bottom and side of the groove perpendicular to each other.

7. The brake caliper as described in claim 6, characterized in that, The depth of the arc-shaped groove is greater than the depth of the groove itself.

8. The brake caliper as described in claim 1, characterized in that, At least one of the first piston structures has the same dimensions as at least one of the second piston structures.

9. A piston structure for mounting on a brake caliper, characterized in that, The piston structure has an oil-pushing surface and a braking surface located on opposite sides along a predetermined direction. The direction of the oil-pushing surface corresponds to the outer direction of the brake caliper, and the direction of the braking surface corresponds to the inner direction of the brake caliper. The oil-pushing surface is arc-shaped.

10. The piston structure as described in claim 9, characterized in that, The piston structure includes: A piston body having a first side and a second side located on opposite sides; An oil-pushing part is an arc-shaped groove, wherein the oil-pushing part is disposed on the first side of the piston body, and the opening direction of the arc-shaped groove corresponds to the outer direction of the brake caliper; and A braking section is disposed on the second side of the piston body, and the opening direction of the braking section corresponds to the inner direction of the brake caliper.

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