Bolt, brake calipers and brake system

Abstract

The utility model provides a bolt, brake calipers and a brake system. The bolt is connected with an oil leakage pipe. The bolt comprises a head part and a connecting part, and the head part and the connecting part are connected and are of an integrated structure. An oil leakage groove is formed in the outer surface of the connecting part. The oil leakage groove is formed in the outer surface of the connecting part, so that the bolt is convenient to produce and machine, and the working state of the oil leakage groove is easy to observe.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle equipment, and in particular to a bolt, a brake caliper and a brake system. Background Art

[0002] The brake caliper is an important part of the automobile braking system. Its main function is to push the brake pads to contact the brake disc after the internal piston is expanded by the hydraulic pressure generated by the brake master cylinder, thereby improving the braking performance. The working principle of the brake caliper is that when braking, the high-pressure brake oil pushes the piston in the caliper, pressing the brake shoe against the brake disc to produce a braking effect. The oil leakage bolt is an important part of the brake caliper.

[0003] Oil leakage bolts in the prior art, such as Figure 1a and Figure 1b As shown in the figure, the oil leakage pipe is open on the surface and hollow inside. It is easy to cause the oil leakage pipe to be blocked during manufacturing, and it is not easy to be discovered by the user. After installation, it causes abnormal oil leakage from the brake caliper, soft braking, and in severe cases, no braking, affecting safe driving. Utility Model Content

[0004] In view of this, an object of the present application is to provide a bolt to overcome the problems in the prior art.

[0005] In a first aspect, an embodiment of the present application provides a bolt, wherein the bolt is connected to an oil leakage pipe;

[0006] The bolt comprises: a head and a connecting part, wherein the head is connected to the connecting part and forms an integral structure; an oil leakage groove is provided on the outer surface of the connecting part.

[0007] In some technical solutions of the present application, the above-mentioned connecting part includes: a primary structure, a secondary structure and a tertiary structure;

[0008] Among them, the diameters of the primary structure, secondary structure and tertiary structure are different; the front end of the primary structure is connected to the head, the rear end of the primary structure is connected to the front end of the secondary structure, the rear end of the secondary structure is connected to the front end of the tertiary structure, and the rear end of the tertiary structure extends into the oil leakage pipe.

[0009] In some technical solutions of the present application, the diameter of the primary structure is the same as the diameter of the tertiary structure, and the diameter of the secondary structure is smaller than the diameter of the primary structure.

[0010] In some technical solutions of the present application, two symmetrically distributed oil leakage grooves are opened on the surface of the above-mentioned three-level structure.

[0011] In some technical solutions of the present application, the inner wall of the oil leakage groove is a smooth curved surface.

[0012] In some technical solutions of the present application, the cross-section of the oil leakage groove is semicircular or one-third circular.

[0013] In some technical solutions of the present application, chamfers are provided at both ends of the three-level structure.

[0014] In some technical solutions of the present application, the above-mentioned oil leakage groove includes a pressed groove.

[0015] In a second aspect, an embodiment of the present application provides a brake caliper, comprising the bolt in the first aspect.

[0016] In a third aspect, an embodiment of the present application provides a bolt, including the bolt in the first aspect.

[0017] The technical solution provided by the embodiments of the present application may have the following beneficial effects:

[0018] The embodiment of the present application provides a bolt, the bolt is connected to an oil leakage pipe; the bolt comprises: a head and a connection part, the head is connected to the connection part and is an integral structure; an oil leakage groove is provided on the outer surface of the connection part. In the present application, the production and processing of the bolt is facilitated by providing the oil leakage groove on the outer surface of the connection part, and the working state of the oil leakage groove is easily observed.

[0019] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1a A front view of a bolt in the prior art provided by an embodiment of the present application is shown;

[0022] Figure 1b A cross-sectional view of a bolt in the prior art provided by an embodiment of the present application is shown;

[0023] Figure 2 A schematic diagram of the front view structure of a bolt provided in an embodiment of the present application is shown;

[0024] Figure 3 A schematic diagram of the side structure of a bolt provided in an embodiment of the present application is shown;

[0025] Figure 4 A schematic diagram of a connection portion provided in an embodiment of the present application is shown.

[0026] Description of the drawings: 1. Head; 2. Connecting part; 201. Primary structure; 202. Secondary structure; 203. Tertiary structure; 204. Oil leakage groove. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] In the description of this application, it should be noted that the terms "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed when in use, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0029] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] The brake caliper is an important part of the automobile braking system. Its main function is to push the brake pads to contact the brake disc after the internal piston is expanded by the hydraulic pressure generated by the brake master cylinder, thereby improving the braking performance. The working principle of the brake caliper is that when braking, the high-pressure brake oil pushes the piston in the caliper, pressing the brake shoe against the brake disc to produce a braking effect. The oil leakage bolt is an important part of the brake caliper.

[0031] Oil leakage bolts in the prior art, such as Figure 1a and Figure 1b As shown in the figure, the oil leakage pipe is open on the surface and hollow inside. It is easy to cause the oil leakage pipe to be blocked during manufacturing, and it is not easy to be discovered by the user. After installation, it causes abnormal oil leakage from the brake caliper, soft braking, and in severe cases, no braking, affecting safe driving.

[0032] Based on this, the embodiment of the present application provides a bolt, and some implementation methods of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0033] The first embodiment, as Figure 2 and Figure 3 As shown, an embodiment of the present application provides a bolt, which includes: a head 1 and a connecting part 2, wherein the head 1 is connected to the connecting part 2 and is an integral structure; an outer surface of the connecting part 2 is provided with an oil leakage groove 204.

[0034] When working, the bolt can be inserted into the oil leakage pipe (generally the end of the oil leakage pipe). In the specific implementation, the oil leakage pipe here is generally selected from the oil leakage pipe of the R11 model. When the oil in the oil leakage pipe flows to the bolt, it flows out through the oil leakage groove 204 on the upper surface of the connecting part 2. Before or during the working of the bolt, if there is foreign matter in the oil leakage groove 204, the user can find it more intuitively and clean it directly to avoid clogging the oil leakage groove 204.

[0035] On the other hand, since the bolts in the embodiment of the present application are an integrated structure and the oil leakage groove 204 is arranged on the outer surface, the particularity of these structures brings the advantage that the bolts in the embodiment of the present application can be directly pressed (that is, the oil leakage groove 204 in the embodiment of the present application includes a pressed groove). The one-time cold heading forming slot has stable dimensions, and oil circuit defects in the production process are easy to find, while improving production efficiency and solving the problem of blind hole oil circuit blockage.

[0036] The second embodiment, as Figure 2 and Figure 3 As shown, an embodiment of the present application provides a bolt, which includes: a head 1 and a connecting part 2, wherein the head 1 is connected to the connecting part 2 and is an integral structure; an outer surface of the connecting part 2 is provided with an oil leakage groove 204.

[0037] When the oil in the oil leakage pipe flows to the bolt, in order to improve the flow efficiency, the embodiment of the present application divides the connection part 2 into different structures: a primary structure 201, a secondary structure 202 and a tertiary structure 203; wherein the diameters of the primary structure 201, the secondary structure 202 and the tertiary structure 203 are different; the front end of the primary structure 201 is connected to the head 1, the rear end of the primary structure 201 is connected to the front end of the secondary structure 202, the rear end of the secondary structure 202 is connected to the front end of the tertiary structure 203, and the rear end of the tertiary structure 203 extends into the oil leakage pipe. The diameter of the primary structure 201 is the same as the diameter of the tertiary structure 203, and the diameter of the secondary structure 202 is smaller than the diameter of the primary structure 201. The embodiment of the present application increases the potential energy of oil flow and facilitates rapid flow by setting the diameter of the secondary structure 202 to be smaller than the diameters of the primary structure 201 and the tertiary structure 203.

[0038] In specific implementation, D is used to represent the nominal thread size (i.e. Figure 3 The diameter of the smallest circle in the primary structure 201 and the tertiary structure 203 is (D-3)±0.1; the diameter of the secondary structure 202 is (D-2)±0.2.

[0039] When working, the bolt can be inserted into the oil leakage pipe (generally the end of the oil leakage pipe). In the specific implementation, the oil leakage pipe here is generally selected from the oil leakage pipe of the R11 model. When the oil in the oil leakage pipe flows to the bolt, it flows into the groove formed by the secondary structure 202 and the primary structure 201 and the tertiary structure 203, and flows out from the oil leakage groove 204 on the outer surface of the tertiary structure 203.

[0040] The third embodiment, as Figure 4 As shown, an embodiment of the present application provides a bolt, which includes: a head 1 and a connecting part 2, wherein the head 1 is connected to the connecting part 2 and is an integral structure; an outer surface of the connecting part 2 is provided with an oil leakage groove 204.

[0041] When the oil in the oil leakage pipe flows to the bolt, in order to improve the flow efficiency, the embodiment of the present application divides the connection part 2 into different structures: a primary structure 201, a secondary structure 202 and a tertiary structure 203; wherein the diameters of the primary structure 201, the secondary structure 202 and the tertiary structure 203 are different; the front end of the primary structure 201 is connected to the head 1, the rear end of the primary structure 201 is connected to the front end of the secondary structure 202, the rear end of the secondary structure 202 is connected to the front end of the tertiary structure 203, and the rear end of the tertiary structure 203 extends into the oil leakage pipe. The diameter of the primary structure 201 is the same as the diameter of the tertiary structure 203, and the diameter of the secondary structure 202 is smaller than the diameter of the primary structure 201.

[0042] In order to facilitate the oil to flow out from the groove formed between the secondary structure 202 and the primary structure 201 and the tertiary structure 203, two oil leakage grooves 204 are opened on the outer surface of the tertiary structure 203 in the embodiment of the present application, and the two oil leakage grooves 204 are arranged in a symmetrical state, that is, the oil can flow out from the groove in two directions.

[0043] In order to increase the flow rate of the oil in the oil leakage groove 204, the inner wall of the oil leakage groove 204 is set as a smooth curved surface in the embodiment of the present application. Preferably, the cross section of the oil leakage groove 204 is semicircular or one-third (such as Figure 3 In a specific implementation, the diameter of the oil leakage groove 204 may be between 2.5 and 3.

[0044] In order to facilitate installation and allow oil to flow out of the grooves formed between the secondary structure 202 and the primary structure 201 and the tertiary structure 203, chamfers are also provided at both ends of the tertiary structure 203 in the embodiment of the present application.

[0045] Based on the above-mentioned arrangement of the tertiary structure 203, the oil can not only flow out from the groove formed between the secondary structure 202 and the primary structure 201 and the tertiary structure 203, but also quickly pass through the oil leakage groove 204, thereby improving efficiency.

[0046] The fourth embodiment, as Figure 2 As shown, an embodiment of the present application provides a bolt, which includes: a head 1 and a connecting part 2, wherein the head 1 is connected to the connecting part 2 and is an integral structure; an oil leakage groove 204 is provided on the outer surface of the connecting part 2. The head 1 includes a screwing part and a sealing part, and the screwing part and the sealing part are an integral structure. One end of the screwing part is suspended in the air, and the other end is connected to a section of the sealing part. The other end of the sealing part is connected to the connecting part 2. It should be noted that the diameter of the sealing part should be larger than the diameter of the connecting part 2 so that it can play a sealing or shielding role. In order to facilitate the screwing operation, the periphery of the screwing part is set to be multi-faceted, and there is also a certain angle at the connection between each face.

[0047] In a fifth embodiment, the present application also provides a brake caliper, which, in addition to the basic structure of the brake caliper, also includes the bolts in the above embodiment:

[0048] The bolt is connected to the oil leakage pipe; the bolt includes: a head 1 and a connecting part 2, the head 1 is connected to the connecting part 2 and is an integral structure; the outer surface of the connecting part 2 is provided with an oil leakage groove 204. The connecting part 2 includes: a primary structure 201, a secondary structure 202 and a tertiary structure 203; wherein the diameters of the primary structure 201, the secondary structure 202 and the tertiary structure 203 are different; the front end of the primary structure 201 is connected to the head 1, the rear end of the primary structure 201 is connected to the front end of the secondary structure 202, the rear end of the secondary structure 202 is connected to the front end of the tertiary structure 203, and the rear end of the tertiary structure 203 extends into the oil leakage pipe. The diameter of the primary structure 201 is the same as that of the tertiary structure 203, and the diameter of the secondary structure 202 is smaller than that of the primary structure 201. Two symmetrically distributed oil leakage grooves 204 are provided on the surface of the tertiary structure 203. The inner wall of the oil leakage groove 204 is a smooth curved surface. The cross section of the oil leakage groove 204 is semicircular or one-third circular. Both ends of the tertiary structure 203 are chamfered.

[0049] In a fifth embodiment, the present application also provides a braking system, which, in addition to the basic structure of the braking system, also includes the bolts in the above embodiment:

[0050] The bolt is connected to the oil leakage pipe; the bolt includes: a head 1 and a connecting part 2, the head 1 is connected to the connecting part 2 and is an integral structure; the outer surface of the connecting part 2 is provided with an oil leakage groove 204. The connecting part 2 includes: a primary structure 201, a secondary structure 202 and a tertiary structure 203; wherein the diameters of the primary structure 201, the secondary structure 202 and the tertiary structure 203 are different; the front end of the primary structure 201 is connected to the head 1, the rear end of the primary structure 201 is connected to the front end of the secondary structure 202, the rear end of the secondary structure 202 is connected to the front end of the tertiary structure 203, and the rear end of the tertiary structure 203 extends into the oil leakage pipe. The diameter of the primary structure 201 is the same as that of the tertiary structure 203, and the diameter of the secondary structure 202 is smaller than that of the primary structure 201. Two symmetrically distributed oil leakage grooves 204 are provided on the surface of the tertiary structure 203. The inner wall of the oil leakage groove 204 is a smooth curved surface. The cross section of the oil leakage groove 204 is semicircular or one-third circular. Both ends of the tertiary structure 203 are chamfered.

[0051] It should be noted that similar numbers and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and are not to be understood as indicating or implying relative importance.

[0052] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The protection scope of the present application is not limited thereto. Although the present application is described in detail with reference to the above-mentioned embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-mentioned embodiments within the technical scope disclosed in the present application, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application. They should all be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A bolt, characterized in that: The bolt is connected to the oil leakage pipe; The bolt comprises: a head and a connecting part, wherein the head is connected to the connecting part and is an integral structure; an oil leakage groove is provided on the outer surface of the connecting part; there are two oil leakage grooves which are symmetrically distributed, the inner wall of the oil leakage groove is a smooth curved surface, and the cross-section of the oil leakage groove is semicircular or one-third circular.

2. The bolt according to claim 1, characterized in that The connecting part includes: a primary structure, a secondary structure and a tertiary structure; Among them, the diameters of the primary structure, secondary structure and tertiary structure are different; the front end of the primary structure is connected to the head, the rear end of the primary structure is connected to the front end of the secondary structure, the rear end of the secondary structure is connected to the front end of the tertiary structure, and the rear end of the tertiary structure extends into the oil leakage pipe.

3. The bolt according to claim 2, characterized in that: The diameter of the secondary structure is smaller than the diameter of the primary structure.

4. The bolt according to claim 2, characterized in that: The oil leakage groove is arranged in the tertiary structure.

5. The bolt according to claim 2, characterized in that: Both ends of the three-level structure are chamfered.

6. The bolt according to claim 1, characterized in that The oil leakage groove comprises a pressed groove.

7. A brake caliper, characterized in that: The invention comprises the bolt according to any one of claims 1 to 6.

8. A braking system, characterized in that: The invention comprises the bolt according to any one of claims 1 to 6.

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