A special pipe plug for plugging holes of gas PE pipeline

Abstract

The utility model discloses a kind of special pipe plug for gas PE pipeline hole plugging, including inverted T type screw rod, the outside of screw rod is sleeved with conical rubber block, the upper portion of rubber block is threadedly connected with circular pressing plate, and circular pressing plate extends out protruding portion towards rubber block direction, the protruding portion is integrally designed with circular pressing plate, another side of circular pressing plate is also equipped with nut for being threadedly connected with screw rod.The utility model belongs to gas pipeline plugging technical field, specifically refers to a kind of special pipe plug for gas PE pipeline hole plugging, to at least solve the problem that the method used when PE pipeline hole plugging is complex, cost is high, and plugging device time is long, and sealing property can reduce needs to remove replacement.

Description

Technical Field

[0001] This utility model belongs to the field of gas pipeline sealing technology, specifically referring to a special pipe plug for sealing holes in gas PE pipelines. Background Technology

[0002] Currently, the only emergency repair methods for PE gas pipelines are as follows: 1. Electrofusion saddle-type repair method; 2. Electrofusion sleeve live pipe replacement method; 3. Sealing device live connection method.

[0003] The above-mentioned repair and emergency repair methods mainly have the following problems:

[0004] 1) The main problem with the electrofusion saddle repair method is that the oxide layer on the outer wall of the PE pipe is difficult to completely remove. If it is not completely removed, the electrofusion heating and welding will not be thorough, resulting in a low success rate of complete sealing. In addition, it requires a high level of operational skills from the construction personnel.

[0005] 2) The electrofusion sleeve method for gas-lined pipe replacement is mainly used for low-pressure PE gas pipelines. This method often involves using a pipe clamp to flatten and cut off the gas flow at the ends of the pipeline to be repaired. However, this method has high requirements and presents difficulties with large-diameter pipes. It also places high demands on the quality of the PE pipe material. If the material has certain defects, the flattened pipe cannot be fully restored, and the edges of the clamped pipe may appear white.

[0006] 3) The gas-connected sealing device method is mainly complicated to operate, requires a large operating space, and the main components of the sealing device are relatively large and expensive. These disadvantages result in higher requirements for construction workers, who must be skilled professionals. The gas-connected sealing device method cannot be used in confined spaces. The cost of purchasing sealing devices is also high. Utility Model Content

[0007] This invention aims to at least solve the problems of complex and costly methods used for sealing holes in PE pipes, as well as the need for disassembly and replacement of sealing devices due to reduced sealing performance over time.

[0008] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: This utility model proposes a special pipe plug for sealing holes in gas PE pipelines, including an inverted T-shaped screw, a conical rubber block sleeved on the outside of the screw, a circular pressure plate threadedly connected to the top of the rubber block, and a protrusion extending from the circular pressure plate toward the rubber block. The protrusion and the circular pressure plate are designed as an integral part, and a nut threadedly connected to the screw is provided on the other side of the circular pressure plate.

[0009] Furthermore, the lower end of the protrusion is embedded in the rubber block.

[0010] Furthermore, the rubber block is located near the countersunk end of the screw and is blocked and limited by the countersunk end of the screw.

[0011] Furthermore, the circumferential surface of the screw, which is wrapped by a rubber block, is a smooth surface, protecting the rubber block from wear.

[0012] The beneficial effects of this utility model using the above structure are as follows: After opening a hole in a low-pressure PE gas pipe, this application is used for emergency repair of gas blockage, which achieves the technical effect of easy and rapid sealing and installation after the repair is completed. The sealing is achieved by rubber blocks, which have reliable sealing performance and can be installed on the PE pipe for a long time without removal. Attached Figure Description

[0013] Figure 1 This is a half-sectional view of the present invention.

[0014] Among them, 1. screw, 2. rubber block, 3. circular pressure plate, 4. protrusion, and 5. nut. Detailed Implementation

[0015] 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.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] Example 1:

[0018] As per the instruction manual Figure 1 As shown, a special plug for sealing holes in gas PE pipelines includes an inverted T-shaped screw 1. A conical rubber block 2 is sleeved on the outside of the screw 1. The circumferential surface of the screw 1 wrapped by the rubber block 2 is a smooth surface to protect the rubber block 2 from wear. The rubber block 2 is near the countersunk end of the screw 1 and is blocked and limited by the countersunk end of the screw 1. A circular pressure plate 3 is threadedly connected to the top of the rubber block 2, and a protrusion 4 extends from the circular pressure plate 3 toward the rubber block 2. The protrusion 4 and the circular pressure plate 3 are integrated. The lower end of the protrusion 4 is embedded in the rubber block 2. A nut 5 threadedly connected to the screw 1 is also provided on the other side of the circular pressure plate 3. A nut 5 threadedly connected to the screw 1 is also provided on the other side of the nut 3.

[0019] In its specific implementation, the utility model involves making a hole in a low-pressure PE gas pipe and inserting a screw rod 1 with its threads facing upwards into the hole. Then, a conical rubber block 2 is inserted into the screw rod 1, and a circular pressure plate 3 is installed, with its protruding portion 4 facing the conical rubber block 2. Finally, a nut 5 is installed on the upper end of the circular pressure plate 3. After the nut 5 is tightened into the screw rod 1, it presses against the circular pressure plate 3, compressing its protruding portion 4 into the rubber block 2. This causes the rubber block 2 to expand and seal the hole, achieving a rapid and tight seal.

[0020] 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.

[0021] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A special plug for sealing holes in gas PE pipelines, comprising an inverted T-shaped screw (1), characterized in that: A conical rubber block (2) is sleeved on the outside of the screw (1). A circular pressure plate (3) is threaded on the top of the rubber block (2). The circular pressure plate (3) extends a protrusion (4) toward the rubber block (2). The protrusion (4) and the circular pressure plate (3) are designed as an integral part. A nut (5) is also provided on the other side of the circular pressure plate (3) and threadedly connected to the screw (1).

2. The special pipe plug for sealing holes in gas PE pipelines according to claim 1, characterized in that: The lower end of the protrusion (4) is embedded in the rubber block (2).

3. The special pipe plug for sealing holes in gas PE pipelines according to claim 1, characterized in that: The rubber block (2) is close to the countersunk end of the screw (1) and is blocked and limited by the countersunk end of the screw (1).

4. The special pipe plug for sealing holes in gas PE pipelines according to claim 1, characterized in that: The circumferential surface of the screw (1) wrapped by the rubber block (2) is a smooth surface, which protects the rubber block (2) from wear.

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