A screw protector cap

Abstract

The utility model discloses a screw protective cap, is used for the protection seal of screw installation, including the screw positioning ring of the sleeve in screw tip and the cap of buckling on screw positioning ring, the height and diameter of screw positioning ring are compatible with screw tip, and the bottom of screw positioning ring is provided with the sleeve hole for screw rod part to pass, the upper portion of screw positioning ring is provided with the press fixed part of convenient assembly, and the cap is provided with the fixed ring of cooperation clamping with press fixed part in, the diameter of press fixed part is greater than the diameter of fixed ring, and the upper surface of press fixed part is inclined plane structure, and the fixed ring is provided with the clamping groove of cooperation clamping with press fixed part in. The utility model has the advantages of good sealing, simple assembly, low in cost, can be widely applied in the sealing field of screw hole.

Description

Technical Field

[0001] This utility model relates to the field of automotive fasteners, and in particular to a screw protective cap. Background Technology

[0002] With the continuous development of the automotive industry, consumers' demands for the driving experience are increasing, and vehicle quietness has become one of the key indicators for measuring product competitiveness. Waterproofing, dustproofing, and sound insulation are core elements for ensuring quietness and overall vehicle reliability. Achieving these properties not only relies on precise coordination in the vehicle assembly process but also requires further blocking of noise transmission through the use of specialized sound insulation materials, forming a comprehensive protection system.

[0003] In the automotive assembly process, screws, as core fastening components, are widely used in various parts of the vehicle body. However, exposed screw installation structures often become weak points affecting the overall vehicle's protective performance. Specifically, gaps easily form between exposed screws and the mounting surface, allowing external dust, moisture, and other impurities to easily penetrate the vehicle's interior through these gaps. This can lead to screw corrosion, affecting the connection's tightness and lifespan; furthermore, it can compromise the vehicle's sealing integrity, allowing external noise to directly enter the cabin, reducing sound insulation and noise reduction effects, and ultimately impacting driving and passenger comfort.

[0004] While some screw protective caps exist in existing technologies, they generally suffer from problems such as unreasonable dustproof structural design and insufficient sealing performance, making it difficult to effectively prevent the intrusion of fine dust and other impurities. This fails to meet the automotive industry's demands for high sealing and dustproof performance. Therefore, there is an urgent need for a structurally optimized screw protective cap to address the technical pain points of existing products' poor dustproof performance and inability to meet the high protection requirements of automobiles, providing a reliable guarantee for improving the waterproof, dustproof, and sound insulation performance of vehicles. Summary of the Invention

[0005] The purpose of this invention is to provide a screw protective cap that solves the problem of poor dust prevention in existing screw caps.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a screw protective cap for protective sealing at the screw installation point, including a screw positioning ring fitted on the screw end and a cap fastened on the screw positioning ring. The height and diameter of the screw positioning ring are adapted to the screw end. The bottom of the screw positioning ring is provided with a sleeve hole for the screw shank to pass through. The upper part of the screw positioning ring is provided with a pressing and fixing part for easy assembly. The cap is provided with a fixing ring that cooperates with the pressing and fixing part to lock in place.

[0007] Preferably, the diameter of the pressing and fixing part is larger than the diameter of the fixing ring, and the upper surface of the pressing and fixing part is a sloped structure, and the fixing ring is provided with a groove that cooperates with the pressing and fixing part to lock together.

[0008] Furthermore, the fixing ring includes a left semicircular ring and a right semicircular ring, and a clearance groove is provided between the left semicircular ring and the right semicircular ring.

[0009] For ease of operation, a flexible band is provided between the screw positioning ring and the cap to serve as a connection.

[0010] Preferably, the screw positioning ring, cap, and flexible strip are integrally injection molded.

[0011] Preferably, the screw positioning ring, cap and flexible strip are made of nylon Pa6, and the thickness of the flexible strip is 1-2 mm.

[0012] Preferably, the cap has an arched structure.

[0013] The beneficial effects of this utility model are as follows: Through the cooperative structure design of the screw positioning ring and the cap, this utility model can greatly improve the waterproofness and sealing of the screw hole position in the car, and the structure is simple and the cost is low.

[0014] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 .

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 .

[0017] Figure 3 This is a cross-sectional view of the present invention after assembly with screws. Detailed Implementation

[0018] Examples, such as Figures 1 to 3 As shown, a screw protective cap is used for protective sealing at the screw mounting point. It includes a screw positioning ring 1 that fits over the screw end and a cap 2 that fastens onto the screw positioning ring 1. The height and diameter of the screw positioning ring 1 are adapted to the screw end 101. The bottom of the screw positioning ring 1 has a sleeve hole 11 for the screw shank 102 to pass through. The screw passes through the screw positioning ring 1, placing the screw end inside the screw positioning ring 1. To achieve a seal at the screw end, the upper part of the screw positioning ring 1 has a pressing and fixing part 12 for easy assembly. The cap 2 has a fixing ring 21 that engages and locks with the pressing and fixing part 12.

[0019] The diameter of the pressing and fixing part 12 is larger than the diameter of the fixing ring 21, and the upper surface of the pressing and fixing part 12 is a beveled structure, which facilitates quick insertion into the fixing ring 21 during assembly. To ensure sealing, the fixing ring 21 is provided with a groove 211 that engages with the pressing and fixing part 12. That is, the opening diameter of the fixing ring 21 is small, and the inner diameter is large. The pressing and fixing part 12 is deformed and pressed into the fixing ring 21, thereby ensuring sealing.

[0020] In order to allow the pressing and fixing part 12 to be smoothly pressed into the fixing ring 21, the fixing ring 21 includes a left semicircular ring 212 and a right semicircular ring 213. A relief groove 214 is provided between the left semicircular ring 212 and the right semicircular ring 213. Through the design of this structure, the left semicircular ring 212 and the right semicircular ring 213 of the fixing ring 21 can be deformed outward when pressed, making it easier to press the pressing and fixing part 12 into place.

[0021] Because the screw positioning ring 1 is small, a flexible band 3 is provided between the screw positioning ring 1 and the cap 2 to prevent the screw positioning ring 1 from falling into the vehicle during assembly and being inconvenient to remove.

[0022] To reduce costs, the screw positioning ring 1, cap 2 and flexible strip 3 are integrally injection molded and made of nylon Pa6 material with certain strength and toughness. To improve the flexibility of the flexible strip 3, the thickness of the flexible strip 3 is 1-2mm.

[0023] To improve the fit between the cap 2 and the floor and further enhance the sealing performance, the cap 2 is designed with an arched structure.

[0024] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A screw protective cap for protective sealing at the screw mounting point, characterized in that: The screw positioning ring (1) is fitted onto the end of the screw and a cap (2) is fastened onto the screw positioning ring (1). The height and diameter of the screw positioning ring (1) are adapted to the end of the screw. The bottom of the screw positioning ring (1) is provided with a sleeve hole (11) for the screw shank to pass through. The upper part of the screw positioning ring (1) is provided with a pressing and fixing part (12) for easy assembly. The cap (2) is provided with a fixing ring (21) that cooperates with and locks into the pressing and fixing part (12).

2. The screw protective cap as described in claim 1, characterized in that: The diameter of the pressing and fixing part (12) is larger than the diameter of the fixing ring (21), and the upper surface of the pressing and fixing part (12) is a sloping structure. The fixing ring (21) is provided with a groove (211) that cooperates with the pressing and fixing part (12) to lock together.

3. The screw protective cap as described in claim 1, characterized in that: The fixed ring (21) includes a left semicircular ring (212) and a right semicircular ring (213), and a clearance groove (214) is provided between the left semicircular ring (212) and the right semicircular ring (213).

4. The screw protective cap as described in claim 1, characterized in that: A flexible band (3) is provided between the screw positioning ring (1) and the cap (2) to serve as a connection.

5. The screw protective cap as described in claim 4, characterized in that: The screw positioning ring (1), cap (2) and flexible strip (3) are integrally injection molded.

6. The screw protective cap as described in claim 4, characterized in that: The screw positioning ring (1), cap (2) and flexible strip (3) are made of nylon Pa6, and the thickness of the flexible strip (3) is 1-2 mm.

7. The screw protective cap as described in claim 1, characterized in that: The cap (2) has an arched structure.

Images