Waterproof screw with sealing ring

Abstract

The utility model relates to the technical field of screws, and discloses a waterproof screw with a sealing ring, which comprises a screw cap, the bottom of the screw cap is fixedly connected with a screw rod, the outside of the screw rod is provided with a sealing ring body, the inner side of the sealing ring body is provided with a reinforcing component, and the top of the screw cap is provided with a quick release component; the quick release assembly comprises a cap, the cap is installed on the top of the nut, a clamping block is fixedly connected to the bottom of the cap, a clamping groove is formed in the top of the nut, and the clamping block and the clamping groove are connected in a clamped mode. According to the waterproof screw, the clamping blocks and the clamping grooves are arranged, and grooves corresponding to other tools are formed in the nut, so that the screw can be tightened by using other tools while the sealing and waterproof performance of the screw is ensured, and the application range of the screw is widened; the sealing ring is designed to be made of the three-layer composite material, so that the sealing waterproofness of the sealing ring is remarkably improved, the service life of the sealing ring is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of screw technology, and in particular to a waterproof screw with a sealing ring. Background Technology

[0002] A screw is a common mechanical fastening element, typically consisting of a head and a shank, used to connect or secure two or more objects by rotation. It is widely used in industry and daily life, such as in automobiles, construction, and electronic equipment, and its role is undeniable. The manufacturing process of screws is complex, requiring multiple steps including forging, machining, and heat treatment to ensure their strength and precision.

[0003] A waterproof screw with a sealing ring is a fastener that achieves waterproofing by embedding a sealing ring within the screw structure. Its design typically includes a threaded shank and a tightening section. The inner surface of the tightening section has a tapered groove for engaging the sealing ring, thus filling the gaps between the connecting parts when the screw is tightened, effectively preventing moisture penetration. This structure not only improves waterproofing performance but also enhances the screw's sealing and durability, making it suitable for various industrial and electronic equipment applications requiring waterproofing.

[0004] While existing waterproof screws with sealing rings can be used in most scenarios, they have significant limitations in use, requiring the use of corresponding tools to tighten them. This makes it impossible to improve the applicability of the screw while ensuring its waterproof sealing performance. Therefore, a waterproof screw with a sealing ring is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a waterproof screw with a sealing ring, aiming to improve the problem that the existing technology cannot improve the applicability of the screw while ensuring its sealing and waterproof performance.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A waterproof screw with a sealing ring includes a nut, a screw rod fixedly connected to the bottom of the nut, a sealing ring body disposed on the outside of the screw rod, a reinforcing component disposed on the inner side of the sealing ring body, and a quick-release component installed on the top of the nut; the quick-release component includes a cap, the cap being installed on the top of the nut, a locking block being fixedly connected to the bottom of the cap, and a locking groove being formed on the top of the nut, the locking block engaging with the locking groove.

[0008] As a further description of the above technical solution:

[0009] The reinforcing component includes a fixing layer, which is made of polytetrafluoroethylene and is disposed inside the sealing ring body.

[0010] As a further description of the above technical solution:

[0011] The reinforcing component includes a transition layer, which is made of nitrile rubber, and the transition layer is disposed inside the fixing layer.

[0012] As a further description of the above technical solution:

[0013] The reinforcing component includes a compression layer, which is made of silicone rubber, and the compression layer is disposed inside the transition layer;

[0014] As a further description of the above technical solution:

[0015] The reinforcing component includes a fixing layer, a transition layer, and a compression layer. The fixing layer is made of polytetrafluoroethylene, the transition layer is made of nitrile rubber, and the compression layer is made of silicone rubber. The fixing layer is disposed inside the sealing ring body, the transition layer is disposed inside the fixing layer, and the compression layer is disposed inside the transition layer.

[0016] As a further description of the above technical solution:

[0017] The top of the sealing ring body is fixedly connected to a plug rod, and the bottom of the nut is provided with a plug hole, and the plug rod and the plug hole are engaged with each other;

[0018] As a further description of the above technical solution:

[0019] The bottom of the nut has a groove, and the sealing ring body is located inside the groove;

[0020] As a further description of the above technical solution:

[0021] A pull rod is fixedly connected to the top of the cap, a cross groove is opened on the top of the nut, and a drainage groove is opened on the outside of the screw.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, by setting a locking block and a locking groove, and opening grooves for other tools on the nut, the screw can be tightened by other tools while ensuring that the screw is sealed and waterproof, thus improving the applicability of the screw.

[0024] 2. In this utility model, by designing the sealing ring as a three-layer composite material, not only is the sealing and waterproof performance of the sealing ring significantly improved, but the service life of the sealing ring is also extended and maintenance costs are reduced. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a waterproof screw with a sealing ring proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the cross groove structure of a waterproof screw with a sealing ring proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the insertion hole of a waterproof screw with a sealing ring according to the present invention.

[0028] Figure 4 This is a schematic diagram of the insert of a waterproof screw with a sealing ring proposed in this utility model;

[0029] Figure 5 This is a structural schematic diagram of a reinforced component for a waterproof screw with a sealing ring proposed in this utility model.

[0030] Legend:

[0031] 1. Nut; 2. Cap; 3. Pull rod; 4. Screw; 5. Drain groove; 6. Slot; 7. Cross groove; 8. Locking block; 9. Insertion hole; 10. Groove; 11. Sealing ring body; 12. Insert rod; 13. Fixing layer; 14. Transition layer; 15. Compression layer. Detailed Implementation

[0032] 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.

[0033] Reference Figure 1 and Figure 2 This utility model provides an embodiment of a waterproof screw with a sealing ring, including a nut 1, a screw rod 4 fixedly connected to the bottom of the nut 1, and the screw is fixed in the desired thread groove by rotating the nut 1 to drive the screw rod 4 to rotate. A sealing ring body 11 is provided on the outside of the screw rod 4 to improve the waterproofness of the screw. A reinforcing component is provided on the inside of the sealing ring body 11 to make the sealing performance of the sealing ring body 11 even better. A quick-release component is installed on the top of the nut 1 to improve the applicability of the screw. The quick-release component includes a cap 2, which is installed on the top of the nut 1 to protect the nut 1. A locking block 8 is fixedly connected to the bottom of the cap 2. A locking groove 6 is opened on the top of the nut 1. The locking block 8 and the locking groove 6 are engaged with each other. The locking block 8 is engaged in the locking groove 6 to enhance the sealing performance.

[0034] Reference Figures 3-5The reinforcing components include a fixing layer 13, which is made of polytetrafluoroethylene (PTFE) and is disposed inside the sealing ring body 11. PTFE ensures that the sealing ring will not fall off during long-term use, and its smooth surface reduces the adhesion of impurities. Its self-lubricating properties reduce wear between the sealing ring and the mating surface, especially under dry friction or insufficient lubrication conditions. The reinforcing components also include a transition layer 14, which is made of nitrile rubber and is disposed inside the fixing layer 13. Nitrile rubber has a moderate elastic modulus, effectively absorbing pressure fluctuations and preventing the sealing ring from tearing due to excessive external pressure. Its elastic buffering properties reduce stress concentration between the sealing ring and the mating surface. Finally, the reinforcing components include a compression layer 15, which is made of silicone rubber and is disposed inside the transition layer 14. Silicone rubber has a wide temperature range, making it suitable for long-term sealing in high-temperature environments and preventing seal failure due to thermal expansion and contraction. The sealing ring body 11 consists of a fixing layer 13, a transition layer 14, and a compression layer 15. The fixing layer 13 is made of polytetrafluoroethylene (PTFE), the transition layer 14 is made of nitrile rubber (NBR), and the compression layer 15 is made of silicone rubber. The fixing layer 13 is located inside the sealing ring body 11, the transition layer 14 is located inside the fixing layer 13, and the compression layer 15 is located inside the transition layer 14. A rod 12 is fixedly connected to the top of the sealing ring body 11. A hole 9 is provided at the bottom of the nut 1. The rod 12 is engaged with the hole 9. By inserting the rod 12 into the hole 9, the sealing ring body 11 can be more stably fixed in the groove 10. A groove 10 is provided at the bottom of the nut 1, and the sealing ring body 11 is located inside the groove 10. A pull rod 3 is fixedly connected to the top of the cap 2. The pull rod 3 makes it easier to remove the cap 2. A cross groove 7 is provided on the top of the nut 1. The cross groove 7 makes it easy to tighten the screw with other tools. A drainage groove 5 is provided on the outside of the screw rod 4. The drainage groove 5 can prevent liquid residue from remaining on the screw, which could cause the screw to rust and corrode.

[0035] Working principle: First, when the waterproof screw is needed, it can be tightened with a socket wrench. The drainage groove 5 on the outside of the screw 4 can drain the water away, preventing water from remaining inside the screw 4 and causing corrosion. At the same time, when a socket wrench is not available, the cap 2 can be pulled out by pulling the lever 3. The nut 1 has a cross groove 7 in the middle, which can be tightened with a screwdriver, thus improving the applicability of the waterproof screw.

[0036] Secondly, the sealing ring body 11 of this waterproof screw uses a three-layer composite material, which enhances the screw's waterproof performance. The side of the sealing ring body 11 closest to the nut 1 is a fixing layer 13, made of polytetrafluoroethylene (PTFE). PTFE has an extremely low coefficient of friction, reducing friction between the sealing ring and the mating surface, lowering energy consumption, and extending service life. The transition layer 14 is made of nitrile rubber, which has a moderate elastic modulus, effectively absorbing pressure fluctuations and preventing the sealing ring from tearing due to excessive external pressure. Its elastic buffering properties reduce stress concentration between the sealing ring and the mating surface. The compression layer 15 is made of silicone rubber, which has excellent elasticity and can fill tiny gaps in the mating surface through compression deformation, forming a preliminary seal.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A waterproof screw with a sealing ring, comprising a nut (1), characterized in that: The bottom of the nut (1) is fixedly connected to a screw (4), a sealing ring body (11) is provided on the outside of the screw (4), a reinforcing component is provided on the inside of the sealing ring body (11), and a quick-release component is installed on the top of the nut (1). The quick-release assembly includes a cap (2), which is installed on the top of the nut (1). A locking block (8) is fixedly connected to the bottom of the cap (2). A slot (6) is provided on the top of the nut (1). The locking block (8) and the slot (6) engage with each other.

2. The waterproof screw with a sealing ring according to claim 1, characterized in that: The reinforcing component includes a fixing layer (13), which is made of polytetrafluoroethylene and is disposed inside the sealing ring body (11).

3. A waterproof screw with a sealing ring according to claim 2, characterized in that: The reinforcing component includes a transition layer (14), which is made of nitrile rubber and is disposed inside the fixing layer (13).

4. A waterproof screw with a sealing ring according to claim 3, characterized in that: The reinforcing component includes a compression layer (15), which is made of silicone rubber and is disposed inside the transition layer (14).

5. A waterproof screw with a sealing ring according to claim 1, characterized in that: The reinforcing component includes a fixing layer (13), a transition layer (14), and a compression layer (15). The fixing layer (13) is polytetrafluoroethylene, the transition layer (14) is nitrile rubber, and the compression layer (15) is silicone rubber. The fixing layer (13) is disposed inside the sealing ring body (11), the transition layer (14) is disposed inside the fixing layer (13), and the compression layer (15) is disposed inside the transition layer (14).

6. A waterproof screw with a sealing ring according to claim 1, characterized in that: The sealing ring body (11) is fixedly connected to the top of the plug rod (12), and the bottom of the nut (1) is provided with a plug hole (9). The plug rod (12) and the plug hole (9) are engaged with each other.

7. A waterproof screw with a sealing ring according to claim 1, characterized in that: The bottom of the nut (1) is provided with a groove (10), and the sealing ring body (11) is located inside the groove (10).

8. A waterproof screw with a sealing ring according to claim 1, characterized in that: The cap (2) is fixedly connected to the top of the pull rod (3), the nut (1) has a cross groove (7) on the top, and the screw (4) has a drainage groove (5) on the outside.

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