Efficient sealing fastener

Abstract

The efficient sealing fastener comprises an outer screw rod, an inner screw rod and a sealant capsule, the outer screw rod is of a hollow structure, threads are arranged on the inner side of the outer screw rod, threads are arranged on the outer surface of the outer screw rod, communicating grooves are formed in the outer surface of the outer screw rod at equal intervals, the communicating grooves are communicated with the inner side of the outer screw rod, and the inner side of the outer screw rod is communicated with the sealant capsule. The inner side of the outer screw rod is filled with the sealant capsule, threads are formed in the outer surface of the inner screw rod, and the inner screw rod is installed on the inner side of the outer screw rod; when the screw is used, the outer screw is screwed in firstly, then the sealant capsule is filled into the outer screw, and finally the inner screw is screwed into the outer screw to extrude and explode the sealant capsule. In this way, the sealant can be directly filled into the connecting position, and therefore the more stable sealing effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of fastener technology, specifically a high-efficiency sealing fastener. Background Technology

[0002] Fasteners are mechanical parts used to quickly and securely connect two components or structures. They have a wide range of applications, not only in mechanical connection structures but also in industries such as energy, electronics, electrical appliances, chemicals, metallurgy, and mold making. A common fastener in daily life is the screw. Currently, when sealing the screw's mounting location is required, a gasket or sealing ring is usually added to the screw. The screw compresses the gasket or sealing ring, causing it to deform and fill the tiny gaps created by machining on the surfaces of the connected objects. However, this type of sealing has limited effectiveness. Summary of the Invention

[0003] The purpose of this invention is to provide a high-efficiency sealing fastener to solve the problems in the prior art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency sealing fastener, comprising an external screw, an internal screw, and a sealing capsule. The external screw has a hollow structure, and its inner side is threaded. The outer surface of the external screw is also threaded. Equally spaced connecting grooves are formed on the outer surface of the external screw, and these connecting grooves communicate with the inner side of the external screw. The sealing capsule fills the inner side of the external screw. The outer surface of the internal screw is threaded, and the internal screw is installed inside the external screw.

[0005] Preferably, the external screw is composed of an external screw body and a hollow nut disposed at one end of the external screw body, wherein the hollow nut and the external screw body are an integral structure.

[0006] Preferably, a sealing ring pressure plate is provided between the hollow nut and the outer screw rod body. The sealing ring pressure plate, the hollow nut, and the outer screw rod body are an integral structure. The bottom of the sealing ring pressure plate is provided with a sealing ring that is sleeved on the outer screw rod body.

[0007] Preferably, the bottom of the sealing ring pressure plate is provided with a sealing ring groove.

[0008] Preferably, the internal screw consists of an internal screw body and a nut disposed at the end of the internal screw body, wherein the nut and the internal screw body are an integral structure.

[0009] Preferably, a splitting pin is fixed to the other end of the internal screw rod.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: When using this utility model, first screw in the outer screw, then fill the sealant capsule into the inside of the outer screw, and finally screw the inner screw into the inside of the outer screw and squeeze out the sealant capsule; in this way, the sealant can be directly filled into the inside of the connection position, thereby forming a more stable sealing effect.

[0011] A sealing ring is also added to the external screw, which can form a sealing effect. The bottom of the sealing ring pressure plate has a sealing ring groove, which makes the sealing ring more secure after installation.

[0012] A splitting pin is fixed to the other end of the internal screw rod, which makes it easier for the internal screw rod to break through the sealing capsule. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the external screw of this utility model.

[0016] Figure 3 This is a schematic diagram of the internal screw of this utility model.

[0017] In the diagram: 1. External screw; 2. Sealing ring; 3. Internal screw; 4. Sealing capsule; 5. External screw body; 6. Connecting groove; 7. Sealing ring pressure plate; 8. Sealing ring slot; 9. Hollow nut; 10. Internal screw body; 11. Breaking screw; 12. Nut. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] Please see Figure 1-3 In this embodiment of the present invention, a high-efficiency sealing fastener includes an outer screw 1, an inner screw 3, and a sealing capsule 4. This method allows the sealing adhesive to be directly filled into the interior of the connection position, thereby forming a more stable sealing effect. The outer screw 1 has a hollow structure, and the inner side of the outer screw 1 is threaded, and the outer surface of the outer screw 1 is also threaded. The outer surface of the outer screw 1 has equally spaced connecting grooves 6, which communicate with the inner side of the outer screw 1. The sealing capsule 4 is filled into the inner side of the outer screw 1. The outer surface of the inner screw 3 is threaded, and the inner screw 3 is installed inside the outer screw 1.

[0020] The external screw 1 consists of an external screw body 5 and a hollow nut 9 located at one end of the external screw body 5. The hollow nut 9 and the external screw body 5 are an integral structure. A sealing ring pressure plate 7 is provided between the hollow nut 9 and the external screw body 5. The sealing ring pressure plate 7, the hollow nut 9, and the external screw body 5 are an integral structure. A sealing ring 2 is provided at the bottom of the sealing ring pressure plate 7 and is fitted onto the external screw body 5. A sealing ring groove 8 is provided at the bottom of the sealing ring pressure plate 7. A sealing effect can be formed through the sealing ring 2. The sealing ring groove 8 at the bottom of the sealing ring pressure plate 7 makes the sealing ring 2 more secure after installation.

[0021] The inner screw 3 consists of an inner screw body 10 and a nut 12 located at the end of the inner screw body 10. The nut 12 and the inner screw body 10 are an integral structure. A splitting nail 11 is fixed to the other end of the inner screw body 10. The splitting nail 11 makes it easier for the inner screw body 10 to break the sealing capsule 4.

[0022] The working principle of this utility model is as follows: When using this utility model, first screw in the outer screw 1, then fill the sealant capsule 4 into the interior of the outer screw 1, and finally screw in the inner screw 3 into the interior of the outer screw 1 and squeeze out the sealant capsule 4; in this way, the sealant can be directly filled into the interior of the connection position, thereby forming a more stable sealing effect.

[0023] A sealing ring 2 is also added to the external screw 1. The sealing ring 2 can form a sealing effect. The bottom of the sealing ring pressure plate 7 is provided with a sealing ring groove 8. The sealing ring groove 8 makes the sealing ring 2 more secure after installation.

[0024] A breaking nail 11 is fixed to the other end of the inner screw rod 10, which makes it easier for the inner screw rod 10 to break the sealing capsule 4.

[0025] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A high efficiency seal fastener characterized by: The device includes an outer screw (1), an inner screw (3), and a sealing capsule (4). The outer screw (1) is hollow and has threads on its inner side and threads on its outer surface. The outer surface of the outer screw (1) has equally spaced connecting grooves (6) that communicate with the inner side of the outer screw (1). The sealing capsule (4) is filled inside the outer screw (1). The outer surface of the inner screw (3) has threads and is installed inside the outer screw (1).

2. A high efficiency sealed fastener according to claim 1 wherein: The external screw (1) consists of an external screw body (5) and a hollow nut (9) located at one end of the external screw body (5). The hollow nut (9) and the external screw body (5) are an integral structure.

3. A high efficiency sealed fastener according to claim 2 wherein: A sealing ring pressure plate (7) is provided between the hollow nut (9) and the outer screw rod (5). The sealing ring pressure plate (7), the hollow nut (9), and the outer screw rod (5) are an integral structure. The bottom of the sealing ring pressure plate (7) is provided with a sealing ring (2) sleeved on the outer screw rod (5).

4. A high efficiency sealed fastener according to claim 3 wherein: The bottom of the sealing ring pressure plate (7) is provided with a sealing ring groove (8).

5. A high efficiency sealed fastener according to claim 1 wherein: The inner screw (3) consists of an inner screw body (10) and a nut (12) located at the end of the inner screw body (10). The nut (12) and the inner screw body (10) are an integral structure.

6. A high efficiency sealed fastener according to claim 5 wherein: The other end of the internal screw rod (10) is fixed with a splitting nail (11).

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