Guide pin dust cover for brake caliper support

Abstract

The utility model provides the guide pin dust cover for the brake caliper bracket, the guide pin dust cover comprises the first mounting section and the second section which are connected with each other, the guide pin dust cover is compatible with the externally-wrapped guide pin dust cover and the embedded guide pin dust cover, the guide pin dust cover can be suitable for various types of brakes, the universality of the guide pin dust cover is improved, the inventory management cost is saved, and the service life of the guide pin dust cover is prolonged. The difficulty of inventory management is reduced; the first mounting section comprises an inner layer part embedded into the guide pin mounting hole and an outer layer part arranged outside the inner layer part in a covering mode, and the sealing effect between the guide pin dust cover and the brake caliper support is remarkably improved through double sealing of the inner layer part and the outer layer part which are embedded; the accommodating space for accommodating the guide pin mounting seat is formed between the inner layer part and the outer layer part, and the guide pin mounting seat can be clamped in the accommodating space, so that the mounting stability and reliability between the guide pin dust cover and the brake caliper bracket can be ensured.

Description

Technical Field

[0001] The present application relates to the technical field of brake caliper brackets, and in particular to a guide pin dust cover for a brake caliper bracket. Background Art

[0002] Guide pin dust covers are a key component in automotive braking systems. Their primary function is to protect the brake system's guide pins from dust, moisture, and other contaminants, thereby ensuring proper function and extending the lifespan of the system. Traditional guide pin dust cover designs fall into two main types: external and internal. External dust covers wrap around the outside of the guide pin to achieve a sealing effect, suitable for specific brake types, especially offering excellent protection in harsh environments. Internal designs, on the other hand, embed themselves within the guide pin, providing an effective seal while reducing space and adapting to compact designs.

[0003] However, these two traditional designs are each adapted to a specific usage environment and a matching brake type, resulting in poor interchangeability of guide pin dust covers in actual applications and poor product compatibility. This requires inventory management of different types of guide pin dust covers, increasing the difficulty and cost of inventory management and limiting the product's versatility and market flexibility. Utility Model Content

[0004] In order to solve the above technical problems, the present application provides a guide pin dust cover for a brake caliper bracket, comprising a first mounting section and a second mounting section connected to each other; a guide pin mounting hole is formed in the first mounting section and the second mounting section; the first mounting section comprises an inner layer portion embedded in the guide pin mounting hole and an outer layer portion covering the outside of the inner layer portion, and an accommodating space for accommodating a guide pin mounting seat is formed between the inner layer portion and the outer layer portion.

[0005] In some embodiments of the present application, the second mounting section includes a stretching portion connected to the outer layer portion and a fitting portion arranged on the top of the stretching portion; a first annular protrusion is formed inwardly on the top of the fitting portion; a first annular groove is formed on the upper outer wall of the guide pin; and the first annular protrusion is fitted into the first annular groove.

[0006] In some embodiments of the present application, the stretching portion has a stretched state and a non-stretched state; in the stretched state, the inner wall of the stretching portion fits into the outer wall of the guide pin; in the non-stretched state, the stretching portion forms a multi-layer stack in a direction away from the axis of the guide pin.

[0007] In some embodiments of the present application, a second annular protrusion is formed inwardly at the free end of the outer layer; a second annular groove is formed on the guide pin mounting seat; and the second annular protrusion is embedded in the second annular groove.

[0008] In some embodiments of the present application, a plurality of exhaust channels are arranged on the inner wall of the inner layer portion.

[0009] In some embodiments of the present application, the outer wall of the first mounting section and the second mounting section are both provided with a buffer damping portion.

[0010] In some embodiments of the present application, the first mounting section and the second mounting section are made of rubber material.

[0011] Compared with the prior art, the brake caliper support guide pin dust cover has the following advantages and beneficial effects: the brake caliper support guide pin dust cover includes a first mounting section and a second section connected with each other, and is compatible with an outer package type and an embedded type guide pin dust cover, can be applied to various types of brakes, improves the universality of the guide pin dust cover, saves the cost of inventory management, and reduces the difficulty of inventory management; the first mounting section includes an inner layer portion embedded in the inside of the guide pin mounting hole and an outer layer portion covering the outside of the inner layer portion, and the double sealing of the embedded inner layer portion and the outer layer portion significantly improves the sealing effect between the guide pin dust cover and the brake caliper support; a containing space containing the guide pin mounting seat is formed between the inner layer portion and the outer layer portion, the guide pin mounting seat can be clamped in the containing space, and the stability and reliability of the installation between the guide pin dust cover and the brake caliper support can be ensured.

[0012] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present text. BRIEF DESCRIPTION OF DRAWINGS

[0013] The drawings constituting a part of the present text are used to provide a further understanding of the present text, the illustrative embodiments of the present text and the description thereof are used to explain the present text, and do not constitute an improper limitation on the present text. In the drawings:

[0014] Figure 1 is a structure schematic view of the brake caliper support guide pin dust cover provided by an exemplary embodiment of the present application;

[0015] Figure 2 is a front view of the brake caliper support guide pin dust cover provided by an exemplary embodiment of the present application;

[0016] Figure 3 is Figure 2 the cross-sectional view at A-A in FIG.

[0017] in the drawings:

[0018] 201, first mounting section; 202, second mounting section; 203, inner layer portion; 204, outer layer portion; 205, stretchable portion; 206, fitting portion; 207, first annular protrusion; 208, second annular protrusion; 209, exhaust passage; 210, cushioning portion. DETAILED DESCRIPTION

[0019] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other at will.

[0020] In the automobile brake system, the guide pin dust cover is one of the key components, and its main function is to protect the guide pin of the brake system from the invasion of external dust, moisture and other pollutants, so as to ensure the normal operation of the brake system and prolong the service life. The traditional guide pin dust cover design is mainly divided into two types: outer package type and embedded type; the dust cover designed by the outer package type realizes the sealing effect by wrapping outside the guide pin, which is suitable for specific types of brakes, especially showing good protection performance in harsh environmental conditions; the embedded type design adopts the way of embedding inside the guide pin, which can provide effective sealing while reducing the occupied space, and adapt to the compact design requirements.

[0021] However, these two traditional designs adapt to specific use environment and matched brake types respectively, which leads to poor interchangeability of the guide pin dust cover in actual application, poor product compatibility, and leads to the need for inventory management of different types of guide pin dust covers, increasing the difficulty and cost of inventory management, and limiting the universality and market flexibility of the product.

[0022] Based on this, an exemplary embodiment of the present application provides a guide pin dust cover for a brake caliper bracket, which includes a first mounting section and a second section that are interconnected, is compatible with outsourced and embedded guide pin dust covers, and can be applied to various types of brakes, thereby improving the versatility of the guide pin dust cover, saving inventory management costs, and reducing the difficulty of inventory management; the first mounting section includes an inner layer portion embedded in the guide pin mounting hole and an outer layer portion covered outside the inner layer portion, and the sealing effect between the guide pin dust cover and the brake caliper bracket is significantly improved through double sealing of the embedded inner layer portion and the outer layer portion; an accommodating space for accommodating the guide pin mounting seat is formed between the inner layer portion and the outer layer portion, and the guide pin mounting seat can be clamped in the accommodating space, which can ensure the stability and reliability of the installation between the guide pin dust cover and the brake caliper bracket.

[0023] An exemplary embodiment of the present application provides a guide pin dust cover for a brake caliper bracket, wherein a guide pin mounting hole is formed on a guide pin mounting seat of the brake caliper bracket, the guide pin dust cover is mounted in the guide pin mounting hole, and the guide pin is mounted in the guide pin dust cover, and the guide pin dust cover can achieve sealing of the guide pin and the guide pin mounting hole. Figure 1 and 2 As shown, the guide pin dust cover includes a first mounting section 201 and a second mounting section 202 connected in sequence; this makes the guide pin dust cover compatible with both outsourced and embedded guide pin dust covers, and can be applied to various types of brakes, thereby improving the versatility of the guide pin dust cover, saving inventory management costs, and reducing the difficulty of inventory management. A guide pin mounting hole is formed in the first mounting section 201 and the second mounting section 202; the first mounting section 201 includes an inner layer portion 203 embedded in the guide pin mounting hole and an outer layer portion 204 covering the outside of the inner layer portion 203, the inner layer portion 203 and the outer layer portion 204 are connected to each other, and an accommodation space for accommodating the guide pin mounting seat is formed between the inner layer portion 203 and the outer layer portion 204. The double sealing of the embedded inner layer portion 203 and the outer layer portion 204 significantly improves the sealing effect between the guide pin dust cover and the brake caliper bracket. Preferably, as Figure 3 As shown, the free end of the outer layer 204 forms a second annular protrusion 208 inwardly; a second annular groove is formed on the guide pin mounting seat; the size of the second annular groove is adapted to the size of the second annular protrusion 208; when the guide pin dust cover is installed in the guide pin mounting hole, the second annular protrusion 208 is embedded in the second annular groove, so that the guide pin mounting seat can be clamped in the accommodating space, and the guide pin dust cover is tightly matched with the brake caliper bracket, which can ensure the stability and reliability of the installation between the guide pin dust cover and the brake caliper bracket, and improve the sealing performance between the guide pin dust cover and the brake caliper bracket.

[0024] like Figure 1 and 2As shown, the second mounting section 202 includes a stretching portion 205 connected to the outer layer portion 204 and a fitting portion 206 arranged on the top of the stretching portion 205; a first annular protrusion 207 is formed inwardly at the top of the fitting portion 206; a first annular groove is formed on the upper outer wall of the guide pin; the size of the first annular groove is adapted to the size of the first annular protrusion 207; when the guide pin is installed in the guide pin dust cover, the first annular protrusion 207 is fitted into the first annular groove, so that the guide pin and the guide pin dust cover are tightly fitted, thereby improving the sealing performance between the guide pin and the guide pin dust cover.

[0025] Preferably, the stretching portion 205 has a stretched state and a non-stretched state; during the operation of the brake caliper, each time the brake is applied, the guide pin will slide relative to the guide pin mounting seat, and when the guide pin slides outside the guide pin mounting hole, the guide pin will drive the stretching portion 205 to move together, so that the stretching portion 205 is in a stretched state, and in the stretched state, the inner wall of the stretching portion 205 fits the outer wall of the guide pin; after the braking is completed, the guide pin returns to the initial state, that is, the guide pin is completely installed in the guide pin mounting hole, and at this time, the stretching portion 205 is in a non-stretched state, and in the non-stretched state, the stretching portion 205 forms a multi-layer stack in the direction away from the guide pin axis.

[0026] During guide pin installation, due to the extremely small gap between the external dimensions of the guide pin and the dimensions of the guide pin mounting hole, a small amount of lubricant is typically applied to the outside of the guide pin to facilitate installation. This allows for the exhaust of air from the guide pin mounting hole during installation. In one embodiment, to facilitate the exhaust of air from the guide pin mounting hole during installation, the inner wall of the inner portion 203 is provided with multiple recessed exhaust channels 209. This allows air from the guide pin mounting hole to be exhausted along the exhaust channels 209 during installation, preventing deformation of the guide pin dust cover or rebound during installation.

[0027] In one embodiment, if Figure 3 As shown, the outer walls of the first mounting section 201 and the second mounting section 202 are each provided with a buffering and shock-absorbing portion 210 to suppress vibration of the brake caliper bracket and enhance the stability and reliability of the braking system. The first mounting section 201 and the second mounting section 202 are made of a rubber material, exemplarily EPDM rubber, which imparts excellent wear and corrosion resistance to the guide pin dust cover, thereby extending its service life, maintaining stable performance over the long term, and reducing maintenance frequency.

[0028] The installation process of the guide pin dust cover for the brake caliper bracket of the present application is as follows: Initial positioning: Install the guide pin dust cover in the guide pin mounting hole so that the second annular protrusion 208 fits into the groove on the guide pin mounting seat, and uses radial interference fit to ensure that the two are tightly fitted to form a preliminary seal; Rotate into position: Rotate the guide pin dust cover 180 degrees clockwise to accurately install it in place. At this time, the inner layer 203 of the guide pin dust cover and the inner wall of the guide pin mounting hole are double sealed by interference fit; Insert the guide pin: Insert the guide pin into the guide pin dust cover; Final sealing: The second mounting section 202 of the guide pin dust cover and the guide pin are radially interfered with, further enhancing the sealing effect and ensuring the sealing and reliability of the entire system. The installation method of the guide pin dust cover of the present application is simple and easy to operate, and the sealing performance of the guide pin dust cover at different locations is ensured by multi-point interference fit, which can effectively prevent external contaminants from entering the brake system and extend the service life of the brake system.

[0029] In this application, the terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that an article or device comprising a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such article or device. In the absence of further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the article or device comprising the element.

[0030] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present application.

[0031] Obviously, those skilled in the art may make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if such changes and modifications of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such changes and modifications.

Claims

1. A guide pin dust cover for a brake caliper bracket, characterized in that: It includes a first mounting section and a second mounting section that are connected to each other; a guide pin mounting hole is formed in the first mounting section and the second mounting section; the first mounting section includes an inner layer portion embedded in the guide pin mounting hole and an outer layer portion covering the outside of the inner layer portion, and an accommodating space for accommodating the guide pin mounting seat is formed between the inner layer portion and the outer layer portion.

2. The guide pin dust cover for the brake caliper bracket according to claim 1, characterized in that: The second mounting section includes a stretching portion connected to the outer layer portion and a fitting portion arranged at the top of the stretching portion; a first annular protrusion is formed inwardly at the top of the fitting portion; a first annular groove is formed on the upper outer wall of the guide pin; and the first annular protrusion is fitted into the first annular groove.

3. The guide pin dust cover for the brake caliper bracket according to claim 2, characterized in that: The stretching portion has a stretching state and a non-stretching state; in the stretching state, the inner wall of the stretching portion fits the outer wall of the guide pin; in the non-stretching state, the stretching portion forms a multi-layer stack in a direction away from the axis of the guide pin.

4. The guide pin dust cover for a brake caliper bracket according to claim 1, wherein: A second annular protrusion is formed inwardly at the free end of the outer layer; a second annular groove is formed on the guide pin mounting seat; and the second annular protrusion is embedded in the second annular groove.

5. The guide pin dust cover for a brake caliper bracket according to claim 1, wherein: A plurality of exhaust passages are arranged on the inner wall of the inner layer portion.

6. The guide pin dust cover for a brake caliper bracket according to claim 1, wherein: The outer walls of the first installation section and the second installation section are both provided with a buffering and shock-absorbing portion.

7. The guide pin dust cover for a brake caliper bracket according to claim 1, wherein: The first mounting section and the second mounting section are made of rubber.

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