Waterproof fastener for hardware

Abstract

The utility model discloses a waterproof fastener for hardware spare belongs to fastener technical field, including head, the lower extreme of head is fixed with connecting rod, is equipped with waterproof cap on connecting rod, is set up with the through -hole of corresponding connecting rod in waterproof cap, is provided with drainage slope no.

Description

Technical Field

[0001] This utility model belongs to the field of fastener technology, specifically relating to a waterproof fastener for hardware. Background Technology

[0002] Screw fasteners are mechanical parts that fasten two or more parts together to form a whole. They mainly include 12 types of parts such as bolts, studs, screws, and nuts, and are widely used in machinery, automobiles, aerospace and other fields.

[0003] Existing fasteners have poor waterproofing performance. Tiny gaps between the fastener and the connection interface can easily become entry points for water penetration, leading to corrosion of the connection area and affecting the stability and durability of the overall structure. In addition, water stains tend to accumulate on the upper part of the head of existing fasteners, and water stains on the head are prone to rusting. Utility Model Content

[0004] To address the problems mentioned in the background art, this utility model provides a waterproof fastener for hardware, which has the characteristics of good waterproof effect and prevents moisture from easily entering the tiny gaps between the fastener and the connection interface.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a waterproof fastener for hardware, comprising a head, a connecting rod fixed to the lower end of the head, a waterproof cap sleeved on the connecting rod, a through hole corresponding to the connecting rod in the waterproof cap, a drainage slope on the outer side of the waterproof cap, a plurality of sealing rings two fixed to the upper end of the waterproof cap, and a plurality of sealing rings one fixed to the lower end of the waterproof cap.

[0006] Preferably, a circular groove is provided at the upper end of the head, a cone is fixed in the circular groove, and drainage outlets are provided at the upper sides of both ends of the head corresponding to the positions of the cones. A drainage slope is provided at the lower end of the drainage outlet.

[0007] Preferably, the waterproof cap is made of rubber, and the sealing ring two and the waterproof cap are bonded together with adhesive.

[0008] Preferably, the upper end of the second drainage slope is flush with the side of the cone, and the cone is fixed to the head by welding.

[0009] Preferably, the connecting rod has threads on its surface, and the connecting rod and the head are welded together as a single unit.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This invention features a waterproof cap. During fastener installation, the waterproof cap is fitted onto the connecting rod through the through hole, and then the connecting rod is screwed into the mounting hole of the hardware through the head. The sealing ring two at the upper end of the waterproof cap is compressed between itself and the head, while the sealing ring one at the lower end of the waterproof cap is compressed between itself and the hardware. The waterproof cap acts as a water barrier, and water flows downward through the drainage slope one, preventing the tiny gaps between the fastener and the connection interface from easily becoming entry points for water penetration, leading to corrosion of the connection parts, and thus affecting the stability and durability of the overall structure. By setting a circular groove, when water stains accumulate in the circular groove at the upper end of the head, the water stains are guided through the cone and discharged outward through the drain outlet and the drainage slope two, preventing water stains from accumulating at the upper end of the head and causing rust. Attached Figure Description

[0011] Figure 1 This is a perspective view of the present utility model; Figure 2 This is an exploded perspective view of the present invention; Figure 3 This is a cross-sectional perspective view of the present invention; In the diagram: 1. Head; 2. Circular groove; 3. Waterproof cap; 4. Connecting rod; 5. Through hole; 6. Sealing ring one; 7. Drain outlet; 8. Drainage slope one; 9. Sealing ring two; 10. Cone; 11. Drainage slope two. Detailed Implementation

[0012] 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.

[0013] Please see Figure 1-3 The present invention provides the following technical solution: a waterproof fastener for hardware, including a head 1, a connecting rod 4 fixed at the lower end of the head 1, a waterproof cap 3 sleeved on the connecting rod 4, a through hole 5 corresponding to the connecting rod 4 in the waterproof cap 3, a drainage slope 8 on the outer side of the waterproof cap 3, a plurality of sealing rings 9 fixed at the upper end of the waterproof cap 3, and a plurality of sealing rings 6 fixed at the lower end of the waterproof cap 3.

[0014] Specifically, a circular groove 2 is provided at the upper end of the head 1, and a cone 10 is fixed in the circular groove 2. Drainage outlets 7 are provided at the upper sides of both ends of the head 1 at positions corresponding to the cone 10, and a drainage slope 11 is provided at the lower end of the drainage outlets 7.

[0015] By adopting the above technical solution, when water stains accumulate in the circular groove 2 at the upper end of the head 1, the water stains are drained outward through the cone 10, the drain outlet 7, and the drainage slope 11, thus preventing the accumulation of water stains at the upper end of the head 1 from causing rust.

[0016] Specifically, the waterproof cap 3 is made of rubber, and the sealing ring 2 9 and the waterproof cap 3, as well as the sealing ring 1 6 and the waterproof cap 3, are bonded together with glue.

[0017] By adopting the above technical solution, the waterproof cap 3 is set as a rubber structure, which has a better sealing effect. The glue bonding makes the sealing ring 2 9 and the waterproof cap 3, as well as the sealing ring 1 6 and the waterproof cap 3, more secure.

[0018] Specifically, the upper end of the drainage slope 11 is flush with the side of the cone 10, and the cone 10 is fixed to the head 1 by welding.

[0019] By adopting the above technical solution, the upper end of the drainage slope 11 is flush with the side of the cone 10, which facilitates drainage, and the welding and fixing of the cone 10 and the head 1 is more secure.

[0020] Specifically, the connecting rod 4 has threads on its surface, and the connecting rod 4 and the head 1 are welded together as a single unit.

[0021] By adopting the above technical solution, the surface of the connecting rod 4 is threaded to facilitate fastening, and the connecting rod 4 and the head 1 are welded together as a whole, making it more robust and durable.

[0022] The structure and working principle of the head 1 and connecting rod 4 in this utility model have been disclosed in a waterproof fastener disclosed in Chinese Patent Publication No. CN212838850U.

[0023] The working principle and usage process of this utility model: When using waterproof fasteners for hardware, install the device in a suitable position. When installing the fastener, the waterproof cap 3 is fitted onto the connecting rod 4 through the through hole 5. Then, the connecting rod 4 is screwed into the mounting hole of the hardware through the head 1. The sealing ring 2 9 at the upper end of the waterproof cap 3 is squeezed between itself and the head 1, and at the same time, the sealing ring 1 6 at the lower end of the waterproof cap 3 is squeezed between itself and the hardware. The waterproof cap 3 plays a role in blocking water. Water flows downward through the drainage slope 1 8, preventing the tiny gaps between the fastener and the connection interface from easily becoming entry points for water penetration, leading to corrosion of the connection parts, and thus affecting the stability and durability of the overall structure.

[0024] When water stains accumulate in the circular groove 2 at the upper end of the head 1, the water stains are drained outward through the conical body 10, the drain outlet 7, and the drainage slope 11, thus preventing the water stains at the upper end of the head 1 from rusting.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waterproof fastener for hardware, comprising a head (1), characterized in that: The head (1) is fixed with a connecting rod (4) at the lower end. A waterproof cap (3) is fitted on the connecting rod (4). A through hole (5) corresponding to the connecting rod (4) is opened in the waterproof cap (3). A drainage slope (8) is provided on the outside of the waterproof cap (3). Several sealing rings (9) are fixed at the upper end of the waterproof cap (3). Several sealing rings (6) are fixed at the lower end of the waterproof cap (3).

2. The waterproof fastener for hardware according to claim 1, characterized in that: The head (1) has a circular groove (2) at the upper end, and a cone (10) is fixed in the circular groove (2). Drainage outlets (7) are provided at the upper sides of both ends of the head (1) corresponding to the positions of the cone (10). Drainage slope two (11) is provided at the lower end of the drainage outlet (7).

3. A waterproof fastener for hardware according to claim 1, characterized in that: The waterproof cap (3) is made of rubber, and the sealing ring 2 (9) and the waterproof cap (3) are bonded together with glue as well as the sealing ring 1 (6) and the waterproof cap (3).

4. A waterproof fastener for hardware according to claim 2, characterized in that: The upper end of the drainage slope 2 (11) is flush with the side of the cone (10), and the cone (10) and the head (1) are fixed by welding.

5. A waterproof fastener for hardware according to claim 1, characterized in that: The connecting rod (4) has threads on its surface, and the connecting rod (4) and the head (1) are welded together as a single unit.

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