All-round corrosion protection device for car wheel bolts

Abstract

The utility model discloses full surrounding type car wheel bolt anticorrosive protection device, specifically related to wheel bolt technical field, including the protection cylinder, is provided with the protection connection subassembly on the protection cylinder, the protection connection subassembly includes the limiting disc of setting in the protection cylinder top, the bottom of limiting disc is provided with bolt main body, the protection cylinder is equipped with in bolt main body outside. The utility model discloses through the protection cylinder directly equipped with in bolt main body outside, forms the first physical barrier, and the direct contact of corrosive substance such as rainwater, snow water, salt content is isolated with bolt, and the connecting part of bolt and wheel hub is covered through double -deck structure to first protection disc and second protection disc, further blocks the invasion of silt, oil dirt etc, realizes the full surrounding protection of bolt, and effectively slows down the rust, oxidation process of bolt.

Description

Technical Field

[0001] This utility model relates to the field of wheel bolt technology, and more specifically, to a fully enclosed anti-corrosion protection device for automobile wheel bolts. Background Technology

[0002] Car wheel bolts are key fasteners that connect the wheel to the axle (or hub). Their function is to firmly fix the wheel to the vehicle, ensuring that the wheel will not loosen or fall off when the vehicle is in motion, which is directly related to driving safety.

[0003] Wheel bolts are typically made of high-strength steel, possessing high tensile strength and hardness to withstand various loads during vehicle operation (such as vertical pressure, lateral force, torque, etc.). Their structure generally includes a bolt head (for tightening with a tool), a threaded shank (which mates with a threaded hole on the wheel hub), and some models also use a nut.

[0004] Wheel bolts are close to the ground and are easily exposed to rainwater, snowmelt, road surface water, as well as corrosive substances such as de-icing agents, salt, mud, and oil. These substances can react chemically with the metal surface of the bolts (such as electrochemical corrosion), causing the bolts to rust and oxidize. Therefore, a fully enclosed anti-corrosion protection device for automotive wheel bolts is provided. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a fully enclosed anti-corrosion protection device for automobile wheel bolts, which aims to solve the problems mentioned in the background art.

[0006] This utility model provides the following technical solution: a fully enclosed anti-corrosion protection device for automobile wheel bolts, including a protective cylinder, on which a protective connection component is provided; The protective connection assembly includes a limiting plate disposed at the top of the protective cylinder, a bolt body disposed at the bottom end of the limiting plate, and the protective cylinder sleeved on the outside of the bolt body; The outer side of the protective cylinder is fitted with a first protective disc, the top of the first protective disc is provided with a second protective disc, and the outer sides of the first and second protective discs are respectively provided with extension rods.

[0007] Optionally, in a possible implementation, the two extended abutments are staggered, and one end of each extended abutment is embedded with an inner threaded sleeve. The bottom of each of the two inner threaded sleeves is provided with a limiting abutment block, the top of the limiting abutment block extends into the inner threaded sleeve and is threadedly connected to the inner threaded sleeve. The bottom of the second protective disc and the top of the first protective disc are respectively provided with mating sleeves. Both mating sleeves are fitted on the outside of the protective cylinder. The outside of both mating sleeves is provided with a misalignment opening. The two mating sleeves are engaged with each other through the misalignment opening. The top of the second protective disc is provided with a spring, which is fitted on the outside of the protective cylinder. The top of the spring is provided with a vibration sleeve, which is fitted on the outside of the protective cylinder. The technical effects and advantages of this utility model are as follows: The protective sleeve is directly fitted onto the outside of the bolt body to form the first physical barrier, preventing direct contact between the bolt and corrosive substances such as rainwater, snow water, and salt. The first and second protective discs cover the connection between the bolt and the hub through a double-layer structure, further preventing the intrusion of mud, sand, oil, etc., achieving full-enclosure protection for the bolt and effectively slowing down the rusting and oxidation process of the bolt. Furthermore, the first and second protective discs are engaged by a mating sleeve with a misaligned opening to prevent relative rotation; the limiting block at the end of the extended abutment is connected to the internal threaded sleeve, which can be adjusted to press against the wheel surface to ensure that the entire device is firmly fixed to the wheel, preventing loosening or falling off due to vibration during vehicle operation. Meanwhile, the spring at the top of the second protective disc works in conjunction with the vibration sleeve. The vibration generated by the vehicle's movement will cause the spring to drive the vibration sleeve to vibrate slightly along the protective cylinder, shaking off the dust and water droplets attached to the surface of the protective cylinder, reducing the accumulation of corrosive substances and maintaining the durability of the protective effect. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of this disclosure.

[0009] Figure 1 This is a front view of the overall structure of this utility model.

[0010] Figure 2 This is a schematic diagram of the first protective disc, the second protective disc, the extension rod, the inner threaded sleeve, and the limiting block of this utility model.

[0011] Figure 3This is a schematic diagram of the bolt body, protective cylinder, limiting plate, vibration sleeve and spring of this utility model.

[0012] The attached diagram is labeled as follows: 1. Protective cylinder; 2. Limiting disc; 3. Bolt body; 4. First protective disc; 5. Second protective disc; 6. Extension rod; 7. Internal threaded sleeve; 8. Limiting block; 9. Connecting sleeve; 10. Misalignment opening; 11. Spring; 12. Vibration sleeve. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Example 1 This embodiment aims to provide a fully enclosed anti-corrosion protection device for automotive wheel bolts. Through the coordinated operation of multiple components, it achieves all-round anti-corrosion protection for wheel bolts, effectively isolating them from corrosive substances such as rainwater, salt, and mud, while improving the connection stability between the device and the wheel. It is suitable for wheel bolt protection of various vehicle models.

[0015] As attached Figure 1 , Figure 2 and Figure 3 As shown, the fully enclosed automotive wheel bolt anti-corrosion protection device of this embodiment specifically includes the following components and connection relationships: Protective sleeve 1: Can be made of corrosion-resistant polymer material, with a hollow cylindrical structure. Its inner diameter is adapted to the outer diameter of the bolt body 3, and can be tightly fitted onto the outside of the bolt body 3, such as... Figure 3 As shown, a first physical barrier is formed on the bolt body 3, directly isolating external corrosive substances from contact with the bolt body 3.

[0016] Limiting disc 2: A circular disc structure, fixedly mounted on the top of the protective cylinder 1, such as... Figure 3 As shown, its diameter is larger than the outer diameter of the protective cylinder 1. On the one hand, it plays an axial limiting role for the protective cylinder 1, preventing the protective cylinder 1 from sliding along the bolt body 3 axially. On the other hand, the bottom end of the limiting plate 2 is fixedly connected to the top end of the bolt body 3, such as by welding or integral molding, to ensure the relative position stability of the protective cylinder 1 and the bolt body 3.

[0017] The first protective disc 4 and the second protective disc 5 are both annular disc structures, respectively fitted onto the outside of the protective cylinder 1, as shown below. Figure 1 , Figure 2As shown. The first protective plate 4 is located at the bottom, and the second protective plate 5 is located at the top of the first protective plate 4. The two are tightly connected by a mating sleeve 9.

[0018] The mating sleeves 9 are respectively installed at the bottom of the second protective plate 5 and the top of the first protective plate 4, such as... Figure 2 As shown, both are annular sleeve structures, with their inner diameter matching the outer diameter of the protective sleeve 1. After being sleeved on the outside of the protective sleeve 1, the outer sides of the two mating sleeves 9 are provided with misalignment openings 10. Through the interlocking of the misalignment openings 10, that is, the protruding part of one mating sleeve 9 is embedded in the recessed part of the other mating sleeve 9, the first protective disc 4 and the second protective disc 5 are fixed, preventing them from rotating relative to each other. At the same time, the radial wrapping force on the protective sleeve 1 is enhanced, and the stability of the overall structure is improved.

[0019] Extension rod 6: Fixedly installed on the outer edges of the first protective plate 4 and the second protective plate 5 respectively, such as... Figure 2 As shown, the two extended abutments 6 are staggered to avoid mutual interference and at the same time expand the contact area with the wheel surface.

[0020] Inner threaded sleeve 7 and limiting stop block 8: One end of each extension stop 6 is embedded with an inner threaded sleeve 7, such as Figure 2 As shown, the inner wall of the inner threaded sleeve 7 is provided with an internal thread; the top of the limiting block 8 is provided with an external thread, and its top extends into the inner threaded sleeve 7 and is threadedly connected to the inner threaded sleeve 7. By rotating the limiting block 8, its length extending out of the inner threaded sleeve 7 can be adjusted so that the bottom end of the limiting block 8 tightly abuts against the surface of the wheel, such as the edge of the wheel hub, thereby firmly fixing the first protective disc 4 and the second protective disc 5 to the wheel and preventing the entire device from loosening or falling off.

[0021] Spring 11 and Vibration Sleeve 12: Spring 11 is sleeved on the outside of the protective cylinder 1, and its bottom end is fixedly connected to the top of the second protective disc 5, such as... Figure 3 As shown; the vibration sleeve 12 is a ring structure, which is sleeved on the outside of the protective cylinder 1, and its bottom end is fixedly connected to the top end of the spring 11.

[0022] Example 2 Insert the protective sleeve 1 from the top of the bolt body 3 until the bottom of the protective sleeve 1 is flush with the surface of the wheel hub. At this point, the limiting disc 2 is engaged at the top of the protective sleeve 1, completing the assembly of the core protective component. Figure 3 As shown; The first protective disc 4 is fitted onto the outside of the protective cylinder 1, with its bottom surface flush against the wheel hub. Then, the second protective disc 5 is fitted onto the outside of the protective cylinder 1 and placed on top of the first protective disc 4. The two discs are then secured together by the misalignment opening 10 of the mating sleeve 9. Figure 2 As shown; Rotate the limiting block 8 on the extension rod 6 so that its bottom end fits tightly against the wheel surface, further securing the first and second protective discs; Place the spring 11 on the outside of the protective cylinder 1, connecting its bottom end to the top of the second protective disc 5. Then, place the vibration sleeve 12 on the outside of the protective cylinder 1 and connect it to the top of the spring 11 to complete the overall assembly. Figure 1 As shown The specific working principle is as follows: the protective cylinder 1 completely wraps the bolt body 3, and the first protective disc 4 and the second protective disc 5 cover the connection between the bolt body 3 and the hub, forming a multi-layer physical barrier to effectively prevent corrosive substances such as rainwater, snow water, salt, and mud from contacting the bolt body 3, thus avoiding electrochemical corrosion from the source. The misalignment of the connecting sleeve 9 enhances the integrity of the first and second protective discs. Combined with the clamping action of the extended abutment rod 6 and the limiting abutment block 8, the device fits tightly against the wheel, making it less prone to loosening even when the vehicle is bumpy. Vibrations generated during vehicle operation are transmitted to spring 11, causing spring 11 to undergo elastic deformation and drive vibration sleeve 12 to vibrate slightly along the axial direction of protective cylinder 1. Figure 1 , Figure 3 As shown, it can shake off dust and water droplets adhering to the surface of the protective cylinder 1, reduce the accumulation of corrosive substances, and further improve the anti-corrosion effect.

[0023] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A fully enclosed anti-corrosion protection device for automobile wheel bolts, comprising a protective sleeve (1), characterized in that: The protective cylinder (1) is provided with a protective connection assembly; The protective connection assembly includes a limiting plate (2) set at the top of the protective cylinder (1), and a bolt body (3) is set at the bottom end of the limiting plate (2). The protective cylinder (1) is sleeved on the outside of the bolt body (3). The outer side of the protective cylinder (1) is fitted with a first protective disc (4), and the top of the first protective disc (4) is provided with a second protective disc (5). The outer sides of the first protective disc (4) and the second protective disc (5) are respectively provided with extension rods (6).

2. The fully enclosed anti-corrosion protection device for automobile wheel bolts according to claim 1, characterized in that: The two extension rods (6) are staggered, and one end of each extension rod (6) is embedded with an inner thread sleeve (7). The bottom of each inner thread sleeve (7) is provided with a limit stop block (8).

3. The fully enclosed automotive wheel bolt anti-corrosion protection device according to claim 2, characterized in that: The top of the limiting block (8) extends into the inner threaded sleeve (7) and is threadedly connected to the inner threaded sleeve (7).

4. The fully enclosed anti-corrosion protection device for automobile wheel bolts according to claim 1, characterized in that: The bottom of the second protective plate (5) and the top of the first protective plate (4) are respectively provided with docking sleeves (9), and both docking sleeves (9) are fitted on the outside of the protective cylinder (1).

5. The fully enclosed automotive wheel bolt anti-corrosion protection device according to claim 4, characterized in that: Both of the two mating sleeves (9) have misalignment openings (10) on their outer sides, and the two mating sleeves (9) are engaged with each other through the misalignment openings (10).

6. The fully enclosed anti-corrosion protection device for automobile wheel bolts according to claim 1, characterized in that: The top of the second protective disc (5) is provided with a spring (11), which is sleeved on the outside of the protective cylinder (1). The top of the spring (11) is provided with a vibration sleeve (12), which is sleeved on the outside of the protective cylinder (1).

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