A dust boot for an automotive component

Abstract

The utility model discloses an automobile part dustproof bushing belongs to automobile part technical field, and this dustproof bushing includes through -going hole, rubber inner lining and close -mouthed portion, through the setting of rubber inner lining, can be attached the surface of automobile parts, and can be attached the outer wall of automobile parts through both sides close -mouthed portion, thereby can reach better sealing effect, make external dust and water cannot contact the automobile parts that need protection, thereby can make the protection effect of automobile parts better, through the outward pull of the other side metal ring body, and then can make the inner diameter of metal ring body smaller, thereby can tighten the both sides close -mouthed portion to the inside, thereby can be close -fitted the outer wall of the automobile parts of smaller diameter, through the ductility of rubber inner lining, can make rubber inner lining can be self -adapted ductility when the metal ring body tightens.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology, specifically, it relates to a dustproof bushing for automotive parts. Background Technology

[0002] Rubber sleeves are a type of rubber sealing product, also known as dust covers or dust shields. They are used in automobiles and tractors for dust protection and to prevent grease spillage on the front and rear axles and drive shafts. They are also used in industrial systems such as construction machinery and substations to absorb vibrations in suspension and main body equipment. In other words, they are cover-shaped rubber accessories that protect sliding surfaces and prevent dust and mud. According to their structure, they can be divided into compressible and fixed types. The former has a corrugated body that can be compressed and extended, and can be further divided into cylindrical, pagoda-shaped, and irregular shapes. The latter is used in situations where the sealed body has no change in travel.

[0003] Chinese utility model patent CN216343920U discloses a rubber dust cover for automobiles. Through a wear-resistant and tensile-resistant mechanism, a series of concentric contraction components are provided on the outer wall of the telescopic tube. Each contraction component contains multiple EPDM foam strips, providing excellent UV resistance, weather resistance, heat aging resistance, low-temperature resistance, ozone resistance, chemical resistance, water resistance, good electrical insulation, elasticity, and other physical and mechanical properties. Furthermore, a ring of wear-resistant protrusions around each contraction component enhances the overall wear and damage resistance of the structure, improves the rubber's fatigue aging resistance, significantly extends the product's service life, and provides ample elasticity and good tensile strength, thus assisting users in better use.

[0004] Although the dust cover is wear-resistant and fatigue-resistant, when it is placed on the outside of car parts, the sides of the dust cover cannot fit tightly against the parts, making it easy for dust and water to get in, causing the car parts to become contaminated with dust or come into contact with water and rust. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] To address the problem mentioned in the background art that although the dust cover can resist wear and fatigue aging, when the dust cover is placed on the outside of the car parts, the two sides of the dust cover cannot fit tightly with the parts, which makes it easy for dust and water stains to enter, causing the car parts to be contaminated by dust or rust due to contact with water, the present invention adopts the following technical solution.

[0007] A dust cover for automotive parts includes through holes on both sides of a cylindrical dust cover. A rubber liner is detachably connected to the inside of the cylindrical dust cover. Both ends of the rubber liner are provided with constricted portions. The constricted portions are fixedly connected to the inner wall of the cylindrical dust cover near the through holes. The constricted portions on both sides are tightly attached to the outer wall of the automotive parts, so that external dust and water cannot enter the interior of the cylindrical dust cover.

[0008] Preferably, a metal ring is fitted onto the outside of the two closed ends. A connecting bracket is fixedly connected to one end of the metal ring, and a connecting collar is fixedly connected to the end of the connecting bracket. The other end of the metal ring passes through the connecting collar and pulls the other metal ring outward, thereby reducing the inner diameter of the metal ring and tightly fitting the two closed ends inward against the outer wall of the automotive component.

[0009] Preferably, a fixing block is fixedly connected to the rubber liner near the center. The fixing block is fixedly connected to the inner wall of the straight dust cover. The fixing block divides the rubber liner into two parts, so that the rubber liner on both sides has a balanced stretching force when the metal rings on both sides are closed.

[0010] Preferably, the straight dust cover has mounting chambers on both sides, and take-up rollers are rotatably connected inside the mounting chambers on both sides. One end of the metal ring that passes through the connecting sleeve is wound around the outside of the take-up roller. The opposite ends of the two take-up rollers are fixedly connected to drive shafts that pass through the straight dust cover. Adjusting caps are fixedly connected to the outside of the two drive shafts. Rotating the adjusting caps causes the drive shafts to drive the take-up rollers to rotate, so that the end of the metal ring that passes through the connecting sleeve is wound around the outer wall of the take-up roller. This reduces the inner diameter of the metal ring and closes the two ends, so that the closed ends are tightly attached to the outer wall of the automotive component.

[0011] Preferably, the straight dust cover is threadedly connected to the outer wall of the take-up roller with a fastening bolt. The threaded end of the fastening bolt is inserted into the interior of the installation chamber and contacts the outer wall of the take-up roller. Rotating the fastening bolt causes it to move towards the take-up roller through the threaded connection, so that the threaded end of the fastening bolt contacts the outer wall of the take-up roller.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The rubber liner can fit the surface of the car parts and the closed ends on both sides can fit the outer wall of the car parts, thus achieving a better sealing effect. This prevents external dust and water from contacting the car parts that need protection, thereby providing better protection for the car parts.

[0013] 2. By pulling the other side of the metal ring outward, the inner diameter of the metal ring can be reduced, thereby tightening the two ends inward and allowing it to fit tightly against the outer wall of the smaller diameter automotive part. The rubber liner can adapt to the tightening of the metal ring due to its elasticity.

[0014] 3. By setting up the fixed connecting block, when the metal rings on both sides are tightened, the rubber lining on both sides of the fixed connecting block can be extended to avoid the resistance that increases when one side is closed first and then the other side is closed, making the closing easier.

[0015] 4. By rotating the adjusting cap, the drive shaft drives the take-up roller to rotate, which allows one end of the metal ring that passes through the connecting collar to be wound onto the outer wall of the take-up roller. This reduces the inner diameter of the metal ring and closes the two ends, making the closed ends fit tightly against the outer wall of the automotive part, thus increasing the sealing performance.

[0016] 5. After rotating the adjusting cap to allow the metal ring to pass through one end of the connecting collar and be wound up, rotate the fastening bolt to move it towards the take-up roller through the threaded connection. This will cause the threaded end of the fastening bolt to contact the outer wall of the take-up roller, thereby fixing the take-up roller through friction. This will prevent the take-up roller from rotating after winding up the metal ring and prevent the end from not being able to fit tightly against the outer wall of the automotive part. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a dustproof bushing structure for an automotive component according to the present invention; Figure 2 This is a schematic cross-sectional view of the dustproof bushing in this utility model; Figure 3 This is a schematic diagram of the closing component structure in this utility model; Figure 4 This is a schematic diagram of the winding assembly structure in this utility model; Figure 5 This is a schematic diagram of the fixing component structure in this utility model.

[0018] The correspondence between the labels and component names in the attached figures is as follows: 100. Straight dust cover; 101. Through hole; 102. Mounting chamber; 200. Rubber liner; 201. Closing end; 202. Fixing connecting block; 203. Metal ring; 204. Connecting bracket; 205. Connecting collar; 206. Take-up roller; 207. Adjusting cap; 208. Fastening bolt. Detailed Implementation

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0021] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. The present invention provides the following embodiments.

[0022] like Figure 1 As shown, it is a schematic diagram of a preferred embodiment of the present invention of a dustproof bushing for automotive components. The dustproof bushing for automotive components in this embodiment includes through holes 101 on both sides of a straight dustproof bushing 100. The automotive component is inserted into the interior of the straight dustproof bushing 100 through one through hole 101. In this embodiment, by fitting the straight dustproof bushing 100 onto the vehicle component, the purpose of blocking dust can be achieved.

[0023] like Figure 2 As shown, this is a cross-sectional view of the dust cover in this embodiment. The inside of the straight dust cover 100 is detachably connected to a rubber liner 200. The rubber liner 200 has a tapered portion 201 at both ends. The tapered portion 201 is fixedly connected to the inner wall of the straight dust cover 100 near the through hole 101. In this embodiment, the rubber liner 200 can fit the surface of the automotive parts, and the tapered portions 201 on both sides can fit the outer wall of the automotive parts, thereby achieving a better sealing effect. This prevents external dust and water from contacting the automotive parts that need protection, thus providing better protection for the automotive parts.

[0024] like Figure 3As shown, this is a schematic diagram of the closing component structure in this embodiment. Metal rings 203 are sleeved on the outside of the closing portions 201 on both sides. A connecting bracket 204 is fixedly connected to one end of the metal ring 203, and a connecting collar 205 is fixedly connected to the end of the connecting bracket 204. The other end of the metal ring 203 passes through the connecting collar 205. In this embodiment, by pulling the other side of the metal ring 203 outward, the inner diameter of the metal ring 203 can be reduced, thereby tightening the closing portions 201 on both sides inward, so that they can fit tightly against the outer wall of the small-diameter automotive parts. Due to the extensibility of the rubber liner 200, the rubber liner 200 can adaptively extend when the metal ring 203 is tightened.

[0025] like Figure 2 As shown, a fixing block 202 is fixedly connected to the rubber liner 200 near the center. The fixing block 202 is fixedly connected to the inner wall of the straight dust cover 100. In this embodiment, by setting the fixing block 202, when the metal rings 203 on both sides are tightened, the rubber liner 200 on both sides of the fixing block 202 is extended, so that the resistance encountered by one side is increased when the other side is tightened, making the tightening easier.

[0026] like Figure 2 as well as Figure 4 As shown, this is a schematic diagram of the winding assembly structure in this embodiment. The straight dust cover 100 has mounting chambers 102 on both sides. A winding roller 206 is rotatably connected inside the mounting chambers 102 on both sides. One end of a metal ring 203, extending out of the connecting collar 205, is wound around the outside of the winding roller 206. A drive shaft extending out of the straight dust cover 100 is fixedly connected to the opposite ends of the two winding rollers 206. An adjusting cap 207 is fixedly connected to the outside of the two drive shafts. In this embodiment, rotating the adjusting cap 207 causes the drive shaft to drive the winding roller 206 to rotate, thereby allowing the end of the metal ring 203 extending out of the connecting collar 205 to be wound around the outer wall of the winding roller 206. This reduces the internal diameter of the metal ring 203, closing the two end portions 201 so that the end portions 201 are tightly attached to the outer wall of the automotive component, increasing sealing.

[0027] like Figure 5As shown, this is a schematic diagram of the fixing component structure in this embodiment. The straight cylindrical dust cover 100 is located on the outer wall of the take-up roller 206 and is threadedly connected to a fastening bolt 208. The threaded end of the fastening bolt 208 is inserted into the interior of the mounting chamber 102 and contacts the outer wall of the take-up roller 206. In this embodiment, after rotating the adjusting cap 207 to make the metal ring 203 pass through one end of the connecting sleeve 205 and be wound up, the fastening bolt 208 is rotated to move towards the take-up roller 206 through the threaded connection, so that the threaded end of the fastening bolt 208 contacts the outer wall of the take-up roller 206. Thus, the take-up roller 206 can be fixed by friction, preventing the take-up roller 206 from rotating after the metal ring 203 is wound up, and preventing the closing part 201 from not being able to fit tightly against the outer wall of the automotive part.

[0028] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A dust cover for an automotive component, comprising through holes (101) on both sides of a cylindrical dust cover (100), characterized in that, The inside of the straight dust cover (100) is detachably connected to a rubber liner (200). The rubber liner (200) has a taper (201) at both ends. The taper (201) is fixedly connected to the inner wall of the straight dust cover (100) near the through hole (101). The tapers (201) on both sides are close to the outer wall of the car parts, so that external dust and water cannot enter the inside of the straight dust cover (100).

2. The dustproof bushing for automotive components according to claim 1, characterized in that, Metal rings (203) are fitted around the outer sides of the two constricted portions (201). A connecting bracket (204) is fixedly connected to one end of the metal ring (203), and a connecting collar (205) is fixedly connected to the end of the connecting bracket (204). The other end of the metal ring (203) passes through the connecting collar (205) and pulls the other side of the metal ring (203) outward, thereby making the inner diameter of the metal ring (203) smaller and bringing the two constricted portions (201) inward and tightly attached to the outer wall of the automobile part.

3. The dustproof bushing for automotive components according to claim 2, characterized in that, A fixing block (202) is fixedly connected to the rubber liner (200) near the center. The fixing block (202) is fixedly connected to the inner wall of the straight dust cover (100). The fixing block (202) divides the rubber liner (200) into two parts, so that the rubber liner (200) on both sides has a balanced stretching force when the metal rings (203) on both sides are closed.

4. The dustproof bushing for automotive components according to claim 3, characterized in that, The straight dust cover (100) has installation chambers (102) on both sides. The inside of the two installation chambers (102) is rotatably connected to the take-up roller (206). One end of the metal ring (203) that passes through the connecting collar (205) is wrapped around the outside of the take-up roller (206). The opposite ends of the two take-up rollers (206) are fixedly connected to the drive shaft that passes through the straight dust cover (100). The outside of the two drive shafts is fixedly connected to the adjusting cap (207). Rotating the adjusting cap (207) causes the drive shaft to drive the take-up roller (206) to rotate, so that one end of the metal ring (203) that passes through the connecting collar (205) is wound around the outer wall of the take-up roller (206). The inner diameter of the metal ring (203) is reduced to close the two closing parts (201), so that the closing parts (201) are tightly attached to the outer wall of the automobile part.

5. The automotive component dust bushing according to claim 4, characterized in that, A straight dust cover (100) is located on the outer wall of the take-up roller (206) and is threaded with a fastening bolt (208). The threaded end of the fastening bolt (208) is inserted into the interior of the mounting chamber (102) and the threaded end of the fastening bolt (208) contacts the outer wall of the take-up roller (206). Rotating the fastening bolt (208) moves it toward the take-up roller (206) through the threaded connection, so that the threaded end of the fastening bolt (208) contacts the outer wall of the take-up roller (206).

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