A socket type rubber ring electrically fused double sealed polyethylene composite pipe convenient to install

Abstract

This utility model relates to the field of pipeline installation technology and discloses a socket-type rubber ring electrofusion double-sealed polyethylene composite pipe that is easy to install. It includes a flared pipe assembly, a spigot pipe assembly at the interface end of the flared pipe assembly, a thrust assembly on the spigot pipe assembly, and an electrofusion assembly at the interface end of the flared pipe assembly. The flared pipe assembly includes a flared pipe body, an annular groove on the inner wall of the flared end of the flared pipe body, a rubber sealing ring in the annular groove, and a joint groove on the inner wall of the flared end of the flared pipe body. The spigot pipe assembly includes a spigot pipe body, an outer pipe fixedly connected to the outer end of the spigot pipe body, an end groove on the outer side of the spigot end of the spigot pipe body, and evenly distributed wall holes in the pipe wall of the spigot pipe body, each wall hole having an internal thread. The thrust assembly includes a movable shaft, an external thread on the shaft body, and a piston fixedly connected to the end of the movable shaft body, the piston being movably sleeved in the wall hole.

Description

Technical Field

[0001] This utility model relates to the field of pipeline installation technology, and more specifically to a socket-type electrofusion double-sealed polyethylene composite pipe that is easy to install. Background Technology

[0002] The socket-type rubber ring electrofusion double-sealed polyethylene composite pipe represents the development direction of high-performance plastic pressure pipelines. It has high reliability, high safety, corrosion resistance, and can be used in high-intensity long-distance pressure transmission projects.

[0003] However, existing polyethylene composite pipes still have the following shortcomings in practical use;

[0004] First, in the existing technology, when polyethylene composite pipes are inserted, rubber rings are often used for sealing and fixing, and then electrofusion is used for sealing and connection. The rubber ring fixing in this process is not reliable and can easily have an adverse effect on the electrofusion process.

[0005] Secondly, in the existing technology, when polyethylene composite pipes are inserted, an electrofusion welding machine is used to heat the heating wire. The heat generated by the heating wire melts and fuses the polyethylene material on the inner wall of the socket and the outer wall of the spigot at the same time. After cooling, a permanent, rigid, and integrally connected seal is formed. However, the placement of the heating wire is not secure in this process, and deviations in the melting position are easily caused during the electrofusion process.

[0006] Therefore, in order to solve the above problems, it is necessary to provide a socket-type electrofusion double-sealed polyethylene composite pipe that is easy to install. Utility Model Content

[0007] In order to overcome the above-mentioned defects of the prior art, the present invention provides a socket-type rubber ring electrofusion double-sealed polyethylene composite pipe that is easy to install, so as to solve the problems existing in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a socket-type rubber ring electrofusion double-sealed polyethylene composite pipe that is easy to install, including a flared pipe assembly, a socket pipe assembly at the interface end of the flared pipe assembly, an air-pushing assembly on the socket pipe assembly, and an electrofusion assembly at the interface end of the flared pipe assembly.

[0009] Furthermore, the flared tube assembly includes a flared tube body, an annular groove is formed on the inner wall of the flared end of the flared tube body, a rubber sealing ring is provided in the annular groove, and a joint groove is formed on the inner wall of the flared end of the flared tube body.

[0010] Furthermore, the socket tube assembly includes a socket tube body, an outer tube is fixedly connected to the outer end of the socket tube body, an end groove is provided on the outer side of the socket end of the socket tube body, and uniformly distributed wall holes are provided in the tube wall of the socket tube body, with internal threads provided in the wall holes.

[0011] Furthermore, the thrust assembly includes a movable shaft with an external thread on its shaft body. A piston is fixedly connected to the end of the movable shaft body, and the piston is movably sleeved in a wall hole. The movable shaft is movably installed in the wall hole, and the external thread is connected to the internal thread. A swivel cap is fixedly installed on the outer end of the movable shaft body, and an annular airbag is provided on the end groove.

[0012] Furthermore, the electrofusion assembly includes an outer groove, which is opened at the outer end of the flared end of the flared tube body. An electrofusion wire is provided in the outer groove, and a polyethylene molten ring is provided on the outer side surface of the insertion tube body. After the annular airbag is engaged with the joining groove, the electrofusion wire contacts the polyethylene molten ring.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. This utility model is equipped with an air-pushing component. When the insert tube is inserted into the flared tube, the annular airbag aligns with the joint groove. By rotating the cap, the external thread is driven to make a feeding motion in the wall hole, thereby pushing the piston to push the air in the wall hole into the annular airbag. The annular airbag expands outward and is stably engaged with the joint groove. The stable engagement function of the device is achieved in the above manner.

[0015] 2. This utility model is equipped with an electrofusion assembly. After the annular airbag and the joint groove are engaged to make the insertion tube body stably connected to the flared tube body, the electrofusion welding machine is used to heat the electrofusion wire. The heat generated by the electrofusion wire melts and fuses the polyethylene molten ring. After cooling, a fixed sealed connection structure is formed. The above-mentioned electrofusion connection method is more stable. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the flared tube assembly structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the connector tube assembly structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the thrust assembly structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the electrofusion assembly structure of this utility model.

[0021] The attached figures are labeled as follows: 1. Flared tube assembly; 101. Flared tube body; 102. Annular groove; 103. Rubber sealing ring; 104. Joint groove; 2. Insert tube assembly; 201. Insert tube body; 202. Outer tube; 203. End groove; 204. Wall hole; 205. Internal thread; 3. Air thrust assembly; 301. Movable shaft; 302. External thread; 303. Piston; 304. Rotary cap; 305. Annular air bladder; 4. Electrofusion assembly; 401. Outer groove; 402. Electrofusion wire; 403. Polyethylene molten ring. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The socket-type rubber ring electrofusion double-sealed polyethylene composite pipe that is easy to install is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Reference Figure 1 This utility model provides an easy-to-install socket-type rubber ring electrofusion double-sealed polyethylene composite pipe, including a flared pipe assembly 1, a socket pipe assembly 2 at the interface end of the flared pipe assembly 1, an air-pushing assembly 3 on the socket pipe assembly 2, and an electrofusion assembly 4 at the interface end of the flared pipe assembly 1.

[0024] In this embodiment, the flared tube assembly 1 and the socket tube assembly 2 are joined together. The socket tube assembly 2 can be stably fixed in the flared tube assembly 1 by the air-pushing assembly 3. The electrofusion assembly 4 can enable a stable electrofusion connection between the flared tube assembly 1 and the socket tube assembly 2. The specific structure and working principle of each of the above components will be explained in detail later.

[0025] Reference Figure 2 The flared tube assembly 1 includes a flared tube body 101, an annular groove 102 is provided on the inner wall of the flared end of the flared tube body 101, a rubber sealing ring 103 is provided in the annular groove 102, and a joint groove 104 is provided on the inner wall of the flared end of the flared tube body 101.

[0026] In this embodiment, after the spigot tube assembly 2 is joined to the flared tube body 101, it is initially fixed by the rubber sealing ring 103, and then connected by electrofusion.

[0027] Reference Figure 3The socket tube assembly 2 includes a socket tube body 201, an outer tube 202 is fixedly connected to the outer end of the socket tube body 201, an end groove 203 is provided on the outer side of the socket end of the socket tube body 201, and uniformly distributed wall holes 204 are provided in the tube wall of the socket tube body 201, and internal threads 205 are provided in the wall holes 204.

[0028] Reference Figure 4 The air thrust assembly 3 includes a movable shaft 301, on which an external thread 302 is provided. A piston 303 is fixedly connected to the end of the movable shaft 301. The piston 303 is movably sleeved in the wall hole 204. The movable shaft 301 is movably installed in the wall hole 204. The external thread 302 is connected to the internal thread 205. A swivel cap 304 is fixedly installed on the outer end of the movable shaft 301. An annular airbag 305 is provided on the end groove 203.

[0029] In this embodiment, when the insertion tube 201 is inserted into the flared tube 101, after the annular airbag 305 is aligned with the engagement groove 104, the external thread 302 is fed into the wall hole 204 by rotating the cap 304, thereby pushing the piston 303 to push the air in the wall hole 204 into the annular airbag 305. The annular airbag 305 expands outward and is stably engaged with the engagement groove 104. The stable engagement function of the device is achieved in the above manner.

[0030] Reference Figure 5 The electrofusion assembly 4 includes an outer groove 401, which is opened at the outer end of the flared end of the flared tube 101. An electrofusion wire 402 is provided in the outer groove 401. A polyethylene molten ring 403 is provided on the outer side of the insertion tube 201. After the annular airbag 305 is engaged with the joining groove 104, the electrofusion wire 402 contacts the polyethylene molten ring 403.

[0031] In this embodiment, after the annular airbag 305 engages with the joint groove 104 to stably connect the insertion tube body 201 with the flared tube body 101, an electrofusion welding machine is used to heat the electrofusion wire 402. The heat generated by the electrofusion wire 402 melts and fuses the polyethylene molten ring 403. After cooling, a fixed sealed connection structure is formed. The electrofusion connection method described above is more stable.

[0032] The working principle of this utility model is as follows: When the device is used, the insertion tube 201 is inserted into the flared tube 101. After the annular airbag 305 is aligned with the joint groove 104, the external thread 302 is fed into the wall hole 204 by rotating the cap 304. This pushes the piston 303 to push the air in the wall hole 204 into the annular airbag 305. The annular airbag 305 expands outward and stably engages with the joint groove 104. The stable engagement function of the device is achieved in the above manner. After the annular airbag 305 engages with the joint groove 104 and the insertion tube 201 is stably connected to the flared tube 101, the electrofusion welding machine is used to heat the electrofusion wire 402. The heat generated by the electrofusion wire 402 melts and fuses the polyethylene molten ring 403. After cooling, a fixed sealed connection structure is formed. The electrofusion connection method described above is more stable.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 socket-type electrofusion double-sealed polyethylene composite pipe with a rubber ring that is easy to install, characterized in that, It includes a flared tube assembly (1), the interface end of which is provided with a socket tube assembly (2), the socket tube assembly (2) is provided with a gas-pushing assembly (3), and the interface end of the flared tube assembly (1) is provided with an electrofusion assembly (4).

2. The socket-type electrofusion double-sealed polyethylene composite pipe with rubber ring as described in claim 1, characterized in that: The flared tube assembly (1) includes a flared tube body (101), an annular groove (102) is provided on the inner wall of the flared end of the flared tube body (101), a rubber sealing ring (103) is provided in the annular groove (102), and a joint groove (104) is provided on the inner wall of the flared end of the flared tube body (101).

3. The socket-type electrofusion double-sealed polyethylene composite pipe with rubber ring as described in claim 2, characterized in that: The socket tube assembly (2) includes a socket tube body (201), an outer tube (202) is fixedly connected to the outer end of the socket tube body (201), an end groove (203) is provided on the outer side of the socket end of the socket tube body (201), and uniformly distributed wall holes (204) are provided in the tube wall of the socket tube body (201), and internal threads (205) are provided in the wall holes (204).

4. The socket-type electrofusion double-sealed polyethylene composite pipe with rubber ring as described in claim 3, characterized in that: The air thrust assembly (3) includes a movable shaft (301), the shaft of the movable shaft (301) is provided with an external thread (302), the end of the shaft of the movable shaft (301) is fixedly connected with a piston (303), the piston (303) is movably sleeved in the wall hole (204), the movable shaft (301) is movably installed in the wall hole (204), the external thread (302) is connected to the internal thread (205) for transmission, the outer end of the shaft of the movable shaft (301) is fixedly installed with a swivel cap (304), and the end groove (203) is provided with an annular airbag (305).

5. The socket-type electrofusion double-sealed polyethylene composite pipe with rubber ring as described in claim 4, characterized in that: The electrofusion assembly (4) includes an outer groove (401), which is located at the outer end of the flared end of the flared tube (101). An electrofusion wire (402) is provided in the outer groove (401). A polyethylene molten ring (403) is provided on the outer side of the insertion tube (201). After the annular airbag (305) is joined with the connecting groove (104), the electrofusion wire (402) contacts the polyethylene molten ring (403).

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