A plugging device for polyethylene pipes

Abstract

The utility model discloses a kind of plugging devices for polyethylene pipe, it is related to plugging device technical field, the plugging device for polyethylene pipe, including plugging head, further include: the connecting rod of being arranged in plugging head one side, the surface of the connecting rod is equipped with sealing mechanism, the sealing mechanism includes annular sealing ring and support spring;Two connecting blocks are arranged in the side edge of connecting rod, and the surface of the connecting block is provided with connecting port.The utility model is equipped with the setting of sealing mechanism, when using, the surface of connecting rod is equipped with annular sealing ring, and support spring is installed in the inside of annular sealing ring, support spring utilizes the reverse force of elastic deformation to make annular sealing ring can be tightly attached in external pipeline inner wall, second, realize double sealing again in cooperation with the sealing tape winding of thread hole surface, greatly improve the sealing performance of equipment, avoid plugging sealing property deficiency, and appear the situation of water leakage, air leakage or sundries into.

Description

Technical Field

[0001] This utility model relates to the field of sealing device technology, specifically a sealing device for polyethylene pipes. Background Technology

[0002] Polyethylene pipes are widely used in water supply, gas transmission, municipal drainage, and many other fields due to their advantages such as corrosion resistance, light weight, and convenient installation. During the laying, maintenance, or renovation of polyethylene pipes, temporary or permanent sealing of the pipe ends is often necessary to prevent debris or water accumulation inside the pipe or to prevent media leakage.

[0003] Currently, common methods for sealing polyethylene pipes involve inserting simple plugs into the pipe ends or sealing them with tape. However, these methods have significant drawbacks: simple plugs have poor adhesion to the pipe wall and are prone to detachment due to pressure changes or external impacts, resulting in insufficient sealing and potential leaks such as water, air, or debris entering the pipe; tape wrapping is cumbersome, and the tape is susceptible to aging due to environmental factors, causing a significant decrease in sealing effectiveness over time, making it difficult to meet the requirements for long-term stable sealing. Utility Model Content

[0004] This utility model provides a sealing device for polyethylene pipes to solve the problems of poor adhesion between existing simple plugs and the inner wall of the pipe, easy detachment due to changes in pipe pressure or external impact, insufficient sealing performance, and easy leakage of water, air or debris; the operation of tape wrapping is cumbersome, and the tape is easily affected by environmental factors and ages, resulting in a significant decrease in sealing effect over time, making it difficult to meet the long-term stable sealing requirements.

[0005] This utility model provides the following technical solution: a sealing device for polyethylene pipes, including a sealing head, and further comprising: A connecting rod is provided on one side of the sealing head, and a sealing mechanism is installed on the surface of the connecting rod. The sealing mechanism includes an annular sealing ring and a support spring. Two connecting blocks are provided on one side edge of the connecting rod. The surface of the connecting blocks is provided with a connecting port. The connecting port is provided with a connecting mechanism, which includes a double-ended screw, a positioning nut and a sealing gasket.

[0006] In a preferred embodiment of this invention, the annular sealing ring is disposed on the surface of the connecting rod, and a support spring is installed inside the annular sealing ring.

[0007] As a preferred embodiment of this utility model, the double-ended screw is disposed inside the connection port, and threaded holes are provided on both sides of the surface of the double-ended screw.

[0008] As a preferred embodiment of this utility model, the internal thread of the threaded hole is connected to a positioning nut, and a sealing gasket is attached to one side of the positioning nut.

[0009] As a preferred embodiment of this utility model, a threaded hole is provided on one side of the connecting rod, and the surface of the threaded hole is wrapped with sealing tape.

[0010] As a preferred embodiment of this utility model, a pipe body is inserted into the surface of the sealing head, and fixing blocks are fixedly connected to both sides of the pipe body.

[0011] As a preferred embodiment of this utility model, the surface of the fixing block is provided with a positioning hole that is the same as the connection port, and the diameter of the positioning hole is adapted to the double-ended screw.

[0012] As a preferred embodiment of this utility model, a handle is fixedly connected to one side of the connecting rod, an anti-slip sleeve is fitted onto the surface of the handle, and a plurality of reinforcing rods are fixedly connected to one end of the handle, the reinforcing rods being fixedly connected to the inner wall of the connecting rod.

[0013] Compared with the prior art, this utility model provides a sealing device for polyethylene pipes, which has the following advantages: 1. This polyethylene pipe sealing device, through the setting of the sealing mechanism, has an annular sealing ring installed on the surface of the connecting rod during use, and a support spring installed inside the annular sealing ring. The support spring uses elastic deformation to generate a reverse force, so that the annular sealing ring can be tightly attached to the inner wall of the outer pipe. In addition, the sealing tape wrapped around the surface of the threaded hole achieves double sealing, which greatly improves the sealing performance of the equipment and avoids water leakage, air leakage or foreign matter entering due to insufficient sealing.

[0014] 2. This polyethylene pipe sealing device, through the design of the connection mechanism, avoids unstable connections during use. Therefore, fixing blocks and connecting blocks are set on the surface of both the pipe body and the connecting rod. A double-ended screw passes through the fixing blocks and connecting blocks, and positioning nuts are set on both sides of the double-ended screw for limiting. This improves the connection stability of the device and prevents the interface from loosening due to long-term use, thus avoiding the difficulty in meeting the long-term stable sealing requirements. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall disassembled structure of this utility model; Figure 3 This is a schematic diagram of the sealing mechanism of this utility model; Figure 4This is a schematic diagram of the connection mechanism of this utility model.

[0016] In the diagram: 1. Sealing head; 2. Connecting rod; 3. Sealing mechanism; 301. Annular sealing ring; 302. Support spring; 4. Connecting block; 5. Connection port; 6. Connecting mechanism; 601. Double-ended screw; 602. Positioning nut; 603. Sealing gasket; 7. Sealing tape; 8. Pipe body; 9. Fixing block; 10. Handle; 11. Anti-slip sleeve; 12. Reinforcing rod. Detailed Implementation

[0017] 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.

[0018] Please see Figures 1-4 This utility model discloses a sealing device for polyethylene pipes, including a sealing head 1, and further comprising: A connecting rod 2 is provided on one side of the sealing head 1, and a sealing mechanism 3 is installed on the surface of the connecting rod 2. The sealing mechanism 3 includes an annular sealing ring 301 and a support spring 302. Two connecting blocks 4 are set on one side edge of the connecting rod 2. The surface of the connecting block 4 is provided with a connecting port 5. The connecting port 5 is provided with a connecting mechanism 6. The connecting mechanism 6 includes a double-headed screw 601, a positioning nut 602 and a sealing gasket 603.

[0019] Specifically, an annular sealing ring 301 is disposed on the surface of the connecting rod 2, and a support spring 302 is installed inside the annular sealing ring 301.

[0020] In this embodiment, when in use, an annular sealing ring 301 is installed on the surface of the connecting rod 2, and a support spring 302 is installed inside the annular sealing ring 301. The support spring 302 uses elastic deformation to generate a reverse force so that the annular sealing ring 301 can be tightly attached to the inner wall of the external pipe. In addition, the sealing tape 7 wrapped around the surface of the threaded hole achieves double sealing.

[0021] Specifically, the double-ended screw 601 is located inside the connection port 5, and threaded holes are provided on both sides of the surface of the double-ended screw 601.

[0022] In this embodiment, to avoid unstable connection during use, fixing blocks 9 and connecting blocks 4 are provided on the surfaces of the pipe body 8 and the connecting rod 2. A double-ended screw 601 passes through the fixing blocks 9 and the connecting blocks 4, and positioning nuts 602 are provided on both sides of the double-ended screw 601 for limiting.

[0023] Specifically, the internal thread of the threaded hole is connected to a positioning nut 602, and a sealing gasket 603 overlaps on one side of the positioning nut 602.

[0024] In this embodiment, to avoid unstable connection during use, fixing blocks 9 and connecting blocks 4 are provided on the surfaces of the pipe body 8 and the connecting rod 2. A double-ended screw 601 passes through the fixing blocks 9 and the connecting blocks 4, and positioning nuts 602 are provided on both sides of the double-ended screw 601 for limiting.

[0025] Specifically, a threaded hole is provided on one side of the connecting rod 2, and the surface of the threaded hole is wrapped with sealing tape 7.

[0026] Specifically, the surface of the plug head 1 is inserted with the pipe body 8, and the two sides of the pipe body 8 are fixedly connected with fixing blocks 9.

[0027] In this embodiment, the sealing tape 7 facilitates secondary sealing of the interface of the pipe body 8, and the fixing block 9 facilitates connection of the double-ended screw 601, thereby improving the connection stability.

[0028] Specifically, the surface of the fixing block 9 is provided with a positioning hole that is the same as that of the connection port 5, and the diameter of the positioning hole is adapted to the double-ended screw 601.

[0029] Specifically, a handle 10 is fixedly connected to one side of the connecting rod 2, and an anti-slip sleeve 11 is fitted onto the surface of the handle 10. Several reinforcing rods 12 are fixedly connected to one end of the handle 10, and the reinforcing rods 12 are fixedly connected to the inner wall of the connecting rod 2.

[0030] The working principle and usage process of this utility model are as follows: When in use, an annular sealing ring 301 is installed on the surface of the connecting rod 2, and a support spring 302 is installed inside the annular sealing ring 301. The support spring 302 uses elastic deformation to generate a reverse force so that the annular sealing ring 301 can be tightly attached to the inner wall of the external pipe. In addition, the sealing tape 7 wrapped around the surface of the threaded hole achieves double sealing. In order to avoid unstable connection during use, fixing blocks 9 and connecting blocks 4 are set on the surface of the pipe body 8 and the connecting rod 2. The fixing blocks 9 and connecting blocks 4 are penetrated by double-ended screws 601, and positioning nuts 602 are set on both sides of the double-ended screws 601 for limiting.

[0031] In summary, this polyethylene pipe sealing device, through the sealing mechanism 3, greatly improves the sealing performance of the equipment, avoiding insufficient sealing that could lead to water leakage, air leakage, or the entry of foreign matter; through the connection mechanism 6, it improves the connection stability of the equipment, preventing the interface from loosening due to long-term use and making it difficult to meet the requirements for long-term stable sealing.

[0032] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] 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 sealing device for polyethylene pipes, comprising a sealing head (1), characterized in that, Also includes: A connecting rod (2) is provided on one side of the sealing head (1). A sealing mechanism (3) is installed on the surface of the connecting rod (2). The sealing mechanism (3) includes an annular sealing ring (301) and a support spring (302). Two connecting blocks (4) are provided on one side edge of the connecting rod (2). The surface of the connecting block (4) is provided with a connecting port (5). The connecting port (5) is provided with a connecting mechanism (6). The connecting mechanism (6) includes a double-headed screw (601), a positioning nut (602) and a sealing gasket (603).

2. The sealing device for polyethylene pipes according to claim 1, characterized in that: The annular sealing ring (301) is disposed on the surface of the connecting rod (2), and a support spring (302) is installed inside the annular sealing ring (301).

3. The sealing device for polyethylene pipes according to claim 1, characterized in that: The double-ended screw (601) is located inside the connection port (5), and threaded holes are provided on both sides of the surface of the double-ended screw (601).

4. A sealing device for polyethylene pipes according to claim 3, characterized in that: The internal thread of the threaded hole is connected to a positioning nut (602), and a sealing gasket (603) overlaps on one side of the positioning nut (602).

5. A sealing device for polyethylene pipes according to claim 1, characterized in that: The connecting rod (2) has a threaded hole on one side, and the surface of the threaded hole is wrapped with sealing tape (7).

6. A sealing device for polyethylene pipes according to claim 1, characterized in that: The surface of the plug (1) is inserted with a pipe body (8), and both sides of the pipe body (8) are fixedly connected with fixing blocks (9).

7. A sealing device for polyethylene pipes according to claim 6, characterized in that: The surface of the fixing block (9) is provided with a positioning hole that is the same as that of the connection port (5), and the diameter of the positioning hole is adapted to the double-ended screw (601).

8. A sealing device for polyethylene pipes according to claim 1, characterized in that: A handle (10) is fixedly connected to one side of the connecting rod (2). An anti-slip sleeve (11) is fitted onto the surface of the handle (10). Several reinforcing rods (12) are fixedly connected to one end of the handle (10). The reinforcing rods (12) are fixedly connected to the inner wall of the connecting rod (2).

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