Pipe thread sealing structure

Abstract

The utility model discloses a pipe thread sealing structure, and relates to the field of electric power systems. The pipe thread sealing structure comprises a sealing connecting pipe, a thread part is machined at the end of the sealing connecting pipe, an annular sealing groove is machined in the corresponding position, a rubber ring is movably clamped in the annular sealing groove of the sealing connecting pipe, and the outer side of the sealing connecting pipe is in threaded connection with a sealing ring and a fastening ring. The sealing ring, the fastening ring and the sealing connecting pipe achieve axial sealing of the sealing connecting pipe by extruding the rubber ring. According to the pipe thread sealing structure, the sealing connecting pipe, the sealing ring and the fastening ring are matched, sealing is achieved by extruding the rubber ring, the sealing performance is reliable, and the product quality is guaranteed; the parts, the sealing groove at the sealing connecting pipe and the sealing groove at the sealing ring are simple to process and convenient to operate; the size of each part can be adjusted according to the actual condition of a product.

Description

Technical Field

[0001] This utility model relates to the field of power system technology, specifically to a sealing structure for pipe threads. Background Technology

[0002] Currently, grease-coated dry-type products are increasingly widely used in power systems. Although dry-type transformers mainly operate in dry conditions, a small amount of liquid (such as silicone oil) is still used as insulation or auxiliary material in some parts or components. At present, such products and fittings use a combination of threaded structure and thread sealant to seal the silicone oil in the product.

[0003] Based on years of operation, some products have experienced silicone oil leakage, indicating that the combination of threaded structure and thread sealant cannot fully meet the sealing requirements. If silicone oil leakage occurs, it will affect the electrical performance of the main insulation of the product. In view of the shortcomings of the existing technology, this utility model provides a sealing structure for pipe threads to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a pipe thread sealing structure. It achieves sealing by compressing a rubber ring through the cooperation of a sealing connecting pipe, a sealing ring, and a fastening ring, ensuring reliable sealing performance and product quality. The sealing grooves at the various components, the sealing connecting pipe, and the sealing ring are simple to process and easy to operate. The dimensions of each component can be adjusted according to the actual product requirements, allowing for flexible processing and a wide range of applications. This structure is easy to assemble and process, making it suitable for mass production.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a pipe thread sealing structure, including a sealing connecting pipe, wherein the end of the sealing connecting pipe is machined with a threaded portion, and a circumferential sealing groove is machined at the corresponding position;

[0006] A rubber ring is movably engaged in the circumferential sealing groove of the sealing connection pipe;

[0007] The outer side of the sealing connection pipe is threaded with a sealing ring and a fastening ring;

[0008] The sealing ring, fastening ring, and sealing connecting pipe achieve axial sealing of the sealing connecting pipe by compressing the rubber ring.

[0009] Preferably, the sealing ring has a threaded portion machined inside and a beveled sealing groove machined on one side.

[0010] Preferably, the fastening ring has a threaded portion machined inside.

[0011] Preferably, the rubber ring is movably engaged with the sealing groove machined between the sealing connecting pipe and the sealing ring.

[0012] Preferably, the sealing ring and the fastening ring form a double nut structure with the sealing connecting pipe, and the double nut structure is used to clamp and limit the rubber ring.

[0013] This utility model discloses a sealing structure for pipe threads, which has the following beneficial effects:

[0014] This is used for pipe thread sealing structures. 1. It achieves sealing by squeezing the rubber ring through the cooperation of the sealing connection pipe, sealing ring, and fastening ring. The sealing performance is reliable and ensures product quality.

[0015] 2. The sealing grooves at various components, sealing connection pipes, and sealing rings are simple to process and easy to operate;

[0016] 3. The dimensions of each component can be adjusted according to the actual product requirements, making processing flexible and applicable to a wide range of applications;

[0017] 4. This structure is simple to assemble and its parts are easy to process, making it suitable for mass production. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] In the diagram: 1. Sealing connection pipe; 2. Sealing ring; 3. Fastening ring; 4. Rubber ring. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] This application provides a sealing structure for pipe threads, which solves the problem of silicone oil leakage in some products that have been observed in operation over many years. Therefore, the combination of thread structure and thread sealant cannot fully meet the sealing requirements. If silicone oil leakage occurs, it will affect the electrical performance of the main insulation of the product. The sealing structure provided by this utility model can effectively solve the problem of silicone oil leakage. Moreover, this structure is simple and easy to operate.

[0023] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0024] This utility model discloses a pipe thread sealing structure, according to the appendix. Figure 1 As shown, it includes a sealing connecting pipe 1, a sealing ring 2, a fastening ring 3, and a rubber ring 4. The sealing connecting pipe 1 is connected to the sealing ring 2 and the fastening ring 3 by threads, and compresses the rubber ring 4 placed at the machined sealing groove position to achieve a seal.

[0025] The threaded part is machined at one end of the sealing connection pipe 1, and a sealing groove is machined circumferentially at the corresponding position;

[0026] The sealing ring 2 has internal threaded parts, which are connected to the sealing connecting pipe 1 through the threaded parts, and an angled sealing groove is added inside.

[0027] The fastening ring 3 has internal threaded parts, which are connected to the sealing connection pipe 1 through the threaded parts;

[0028] Rubber ring 4 is placed in the sealing groove machined between sealing connecting pipe 1 and sealing ring 2 for sealing.

[0029] The sealing ring 2, fastening ring 3 and sealing connecting pipe 1 achieve axial sealing of sealing connecting pipe 1 by squeezing rubber ring 4.

[0030] Furthermore, the rubber ring 4 is movably engaged with the sealing groove machined between the sealing connecting pipe 1 and the sealing ring 2.

[0031] Furthermore, the sealing ring 2 and the fastening ring 3 form a double nut structure with the sealing connecting pipe 1, and the double nut structure is used to clamp and limit the rubber ring 4.

[0032] This is used for pipe thread sealing structures. The structure is reasonably designed, easy to operate, and has reliable sealing performance.

[0033] When connecting the sealing structure of the dry product, first connect the sealing ring 2 to the sealing connection pipe 1 through the threaded part and install it in the corresponding position, that is, ensure that the sealing groove of the sealing ring 2 corresponds to the sealing groove of the sealing connection pipe 1.

[0034] Place the rubber ring 4 in the sealing groove mentioned above;

[0035] The fastening ring 3 is connected to the sealing connecting pipe 1 through the threaded part and tightened to ensure that the rubber ring 4 is compressed, and the sealing connecting pipe 1 and sealing ring 2 are locked together by the double nut structure.

[0036] This material is used in pipe thread sealing structures and has the following advantages:

[0037] 1. The sealing connection pipe 1, sealing ring 2, and fastening ring 3 work together to achieve a seal by squeezing the rubber ring 4, ensuring reliable sealing performance and guaranteeing product quality;

[0038] 2. The sealing grooves at each component, the sealing connection pipe 1, and the sealing ring 2 are simple to process and easy to operate;

[0039] 3. The dimensions of each component can be adjusted according to the actual product requirements, making processing flexible and applicable to a wide range of applications;

[0040] 4. This structure is simple to assemble and its parts are easy to process, making it suitable for mass production.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pipe thread sealing structure, comprising a sealing connecting pipe (1), characterized in that: The sealing connection pipe (1) has a threaded part at the end and a circumferential sealing groove is machined at the corresponding position; A rubber ring (4) is movably engaged in the circumferential sealing groove of the sealing connection pipe (1); The outer side of the sealing connection pipe (1) is threaded with a sealing ring (2) and a fastening ring (3); The sealing ring (2), fastening ring (3) and sealing connecting pipe (1) achieve axial sealing of the sealing connecting pipe (1) by squeezing the rubber ring (4).

2. The pipe thread sealing structure according to claim 1, characterized in that: The sealing ring (2) has a threaded part inside and a sealing groove with an oblique shape on one side.

3. The pipe thread sealing structure according to claim 1, characterized in that: The fastening ring (3) has a threaded part machined inside.

4. A pipe thread sealing structure according to claim 2, characterized in that: The rubber ring (4) is movably engaged with the sealing groove processed between the sealing connecting pipe (1) and the sealing ring (2).

5. A pipe thread sealing structure according to claim 4, characterized in that: The sealing ring (2) and the fastening ring (3) form a double nut structure with the sealing connecting pipe (1), and the double nut structure is used to clamp and limit the rubber ring (4).

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