A prefabricated plastic-lined heat-insulated pipe

Abstract

The utility model discloses a prefabricated plastic lining heat preservation pipeline belongs to plastic lining pipeline technical field, including pipeline main part, one end fixed mounting of pipeline main part has the connecting sleeve, the fixed mounting of another end of pipeline main part has the connecting ring, and the connecting sleeve and the connecting ring of adjacent pipeline main part mutually slide sleeve joint, still include four groups of fixed components, and the fixed component includes eccentric roller, the utility model sets up the connecting sleeve and the connecting ring, and the simple structure is convenient and practical, and it is convenient to connect between pipeline main part, and through setting up the force link cooperation eccentric roller use, it is convenient for operator simple quick to fix in the connecting ring in the connecting sleeve, greatly reduced the installation difficulty, and the device is prefabricated in the factory, and the direct assembly is on the spot, need not the on -the -spot slotting or welding flange, further reduced the installation difficulty, improved work efficiency, reduced the pollution to pipeline main part inner wall simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of plastic-lined pipe technology, specifically a prefabricated plastic-lined insulated pipe. Background Technology

[0002] Plastic-lined insulated pipes are composite pipes that use ordinary carbon steel pipes, stainless steel pipes, or aluminum alloy pipes as the base material, with a layer of thermoplastic engineering plastic with excellent chemical stability lining the inner wall, and an insulation layer set in the pipe structure to achieve multiple functions such as heat preservation and corrosion prevention.

[0003] Currently, plastic-lined pipes are generally processed on-site and installed by cutting threaded grooves or welding flanges. This process is inefficient and easily contaminates the inner wall of the pipe. During installation, the pipes are connected by screwing or tightening bolts, which is difficult to install. This problem has not been solved in the existing technology. Utility Model Content

[0004] The purpose of this utility model is to provide a prefabricated plastic-lined insulated pipe. By setting a connecting sleeve and a connecting ring, it is easy to connect the pipe bodies. By setting a force-applying rod in conjunction with an eccentric roller, it is easy for operators to quickly and easily tighten and fix the connecting ring in the connecting sleeve, which greatly reduces the installation difficulty. Furthermore, this device is prefabricated in the factory and directly assembled on site, without the need for on-site grooving or welding of flanges, further reducing the installation difficulty, improving work efficiency, and reducing contamination of the inner wall of the pipe body, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A prefabricated plastic-lined insulated pipe includes a pipe body, a connecting sleeve fixedly installed at one end of the pipe body, and a connecting ring fixedly installed at the other end of the pipe body, wherein the connecting sleeve and the connecting ring of adjacent pipe bodies are slidably sleeved together.

[0007] It also includes four sets of fixing components, each including an eccentric roller. The two sides of the eccentric roller are rotatably connected to the mounting groove via a rotating shaft. The eccentric roller is eccentrically arranged with respect to the rotating shaft. The eccentric roller abuts against one side of the connecting ring. The mounting groove is opened around the connecting sleeve. A force-applying rod is fixedly installed on the surface of the eccentric roller.

[0008] Preferably, limit blocks are fixedly installed around the connecting ring, and a limit groove is formed on the inner wall of the connecting sleeve, with the limit ring slidably installed in the limit groove.

[0009] Preferably, a sealing ring is provided between the connecting ring and the connecting sleeve, and the sealing ring is adhered to the inner wall of the connecting sleeve.

[0010] Preferably, a pin plate is fixedly installed at one end of the force-applying rod, the pin plate is slidably installed in the middle of the pin seat, and the pin seat is fixedly installed on the side of the pipe body near the connecting ring.

[0011] Preferably, a spring groove is fixedly installed on one side of the pin seat, and a positioning pin is slidably installed inside the spring groove. The positioning pin is pinned to the pin plate and the pin seat.

[0012] Preferably, a connecting rod is fixedly installed on one side of the positioning pin, the connecting rod passes through the spring groove and slides with the spring groove, and a handle plate is fixedly installed on one end of the connecting rod outside the spring groove.

[0013] Preferably, a compression spring is slidably sleeved on the surface of the connecting rod, the compression spring is in sliding clearance fit with the inside of the spring groove, one end of the compression spring abuts against the positioning pin, and the other end of the compression spring abuts against the inner wall of the spring groove.

[0014] Preferably, a plastic liner is provided inside the main body of the pipe, and an insulation layer is provided between the plastic liner and the main body of the pipe.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model features a simple and convenient structure with a connecting sleeve and connecting ring, facilitating the connection between pipe bodies. The use of a force-applying rod in conjunction with an eccentric roller allows operators to easily and quickly tighten and fix the connecting ring in the connecting sleeve, significantly reducing installation difficulty. Furthermore, the device is prefabricated in the factory and can be directly assembled on-site, eliminating the need for on-site grooving or flange welding, further reducing installation difficulty, improving work efficiency, and minimizing contamination of the inner wall of the pipe body. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the main pipeline.

[0019] Figure 3 This is a schematic diagram of the structure at the connection point of the main pipeline.

[0020] Figure 4 This is a schematic diagram of the fixed component structure.

[0021] In the diagram: 1. Pipe body; 2. Connecting sleeve; 3. Connecting ring; 4. Eccentric roller; 5. Rotating shaft; 6. Mounting groove; 7. Force rod; 8. Limiting block; 9. Limiting groove; 10. Sealing ring; 11. Pin plate; 12. Pin seat; 13. Spring groove; 14. Positioning pin; 15. Connecting rod; 16. Handle plate; 17. Compression spring; 18. Plastic liner. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-4 This utility model provides a technical solution:

[0024] A prefabricated plastic-lined insulated pipe includes a pipe body 1, with a plastic liner 18 inside the pipe body 1. An insulation layer is provided between the plastic liner 18 and the pipe body 1. The pipe body 1 is made of steel, stainless steel, or aluminum alloy. The plastic liner 18 is made of thermoplastic engineering plastics such as polyethylene, polypropylene, or polyvinyl chloride. The plastic liner 18 can prevent corrosion and scaling on the inner wall of the pipe body 1, while providing good chemical corrosion resistance and hygienic performance. The insulation layer is made of insulation materials such as polyurethane foam, glass wool, or rock wool. A connecting sleeve 2 is fixedly installed at one end of the pipe body 1, and a connecting ring 3 is fixedly installed at the other end of the pipe body 1. The connecting sleeve 2 and the connecting ring 3 of adjacent pipe bodies 1 are slidably sleeved together. Limiting blocks 8 are fixedly installed around the connecting ring 3. A limiting groove 9 is opened on the inner wall of the connecting sleeve 2, and the limiting ring is slidably installed in the limiting groove 9. A sealing ring 10 is provided between the connecting ring 3 and the connecting sleeve 2, and the sealing ring 10 is adhered to the inner wall of the connecting sleeve 2.

[0025] By setting the main body of the pipeline 1, the plastic liner 18 installed on its inner wall can effectively resist the erosion of various corrosive media, ensuring the stable transport of fluids in various complex working conditions such as chemical and food processing. The insulation layer between the plastic liner 18 and the main body of the pipeline can significantly reduce heat transfer, reduce heat loss, and improve energy utilization efficiency. In addition, the connecting sleeves 2 and connecting rings 3 fixedly installed at both ends of the main body of the pipeline 1 respectively create conditions for the rapid connection between the main bodies of the pipeline 1. Combined with the fixing components such as the eccentric roller 4, the installation process is greatly simplified, making the prefabricated plastic-lined insulated pipeline more convenient and efficient to install on site. By setting the limiting block 8 and the limiting groove 9, the relative rotation of adjacent main bodies of the pipeline 1 can be prevented, avoiding damage to the fixing components.

[0026] It also includes four sets of fixing components, including an eccentric roller 4. The two sides of the eccentric roller 4 are rotatably connected to the mounting groove 6 via a rotating shaft 5. The eccentric roller 4 and the rotating shaft 5 are eccentrically arranged. The eccentric roller 4 abuts against one side of the connecting ring 3. The mounting groove 6 is opened around the connecting sleeve 2. A force-applying rod 7 is fixedly installed on the surface of the eccentric roller 4.

[0027] By setting up a fixing component, quick connection and stable fixation between the main pipe bodies 1 can be achieved. The fixing component, through the cooperation of the eccentric roller 4 and the force-applying rod 7, allows the operator to simply rotate the force-applying rod 7. Utilizing the eccentric arrangement characteristics of the eccentric roller 4 and the rotating shaft 5, the eccentric roller 4 pushes the connecting ring 3, which is then tightly pressed against the connecting sleeve 2, forming a reliable mechanical fixation. At the same time, it compresses the sealing ring 10, filling the gaps between the main pipe bodies 1, improving the sealing performance. Furthermore, no complicated tools are required for installation, significantly reducing the difficulty of on-site installation, improving connection efficiency, and effectively preventing leakage problems at pipe connections, thus ensuring the sealing performance and operational safety of the pipeline system.

[0028] A pin plate 11 is fixedly installed at one end of the force-applying rod 7. The pin plate 11 is slidably installed in the middle of the pin seat 12. The pin seat 12 is fixedly installed on the side of the pipe body 1 near the connecting ring 3. A spring groove 13 is fixedly installed on one side of the pin seat 12. A positioning pin 14 is slidably installed inside the spring groove 13. The positioning pin 14 is pinned to the pin plate 11 and the pin seat 12. A connecting rod 15 is fixedly installed on one side of the positioning pin 14. The connecting rod 15 passes through the spring groove 13 and slides with the spring groove 13. A handle plate 16 is fixedly installed at one end of the connecting rod 15 outside the spring groove 13. A compression spring 17 is slidably sleeved on the surface of the connecting rod 15. The compression spring 17 slides with the inside of the spring groove 13 with a clearance fit. One end of the compression spring 17 abuts against the positioning pin 14, and the other end of the compression spring 17 abuts against the inner wall of the spring groove 13.

[0029] By setting up a structure with a pin plate 11, a pin seat 12, and a positioning pin 14 working together, the fixed components can be locked. The pin plate 11 is fixed to one end of the force-applying rod 7 and slides with the pin seat 12, providing an interface for the positioning pin 14 to be inserted and locked. The pin seat 12 is installed on the side of the pipe body 1 near the connecting ring 3, serving as a fixed base for the positioning pin 14 and the pin plate 11, ensuring the stability of the connection structure. Under the elastic force of the compression spring 17, the positioning pin 14 can be inserted into the pin plate 11 and the pin seat 12, locking the position of the eccentric roller 4 after rotating the force-applying rod 7, preventing it from rotating loose due to external force, thereby ensuring that the connecting ring 3 is firmly pressed against the connecting sleeve 2, ensuring the sealing and reliability of the pipe body 1 after connection, and avoiding leakage and other problems caused by fixing failure during the operation of the pipe body 1.

[0030] In practical use, move the device to the designated position. First, align the connecting ring 3 of the adjacent pipe body 1 with the connecting sleeve 2, align the limiting block 8 on the connecting ring 3 with the limiting groove 9 on the inner wall of the connecting sleeve 2, and slide it in along the direction of the limiting groove 9 for initial positioning. Then, pull the handle plate 16 to drive the connecting rod 15, so that the positioning pin 14 overcomes the elastic force of the compression spring 17 and is pulled out from the pin plate 11 and pin seat 12. Rotate the force application rod 7 to drive the eccentric roller 4 to rotate around the rotating shaft 5. Utilize the eccentricity to press the connecting ring 3 tightly against the connecting sleeve 2, while squeezing the sealing ring 10 to enhance the sealing performance. Finally, release the handle plate 16. Under the action of the compression spring 17, the positioning pin 14 is reinserted into the pin plate 11 and pin seat 12, locking the position of the force application rod 7 and preventing the eccentric roller 4 from loosening, thus completing the quick and stable connection of the pipe body 1.

[0031] 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 prefabricated plastic-lined insulated pipe, comprising a pipe body (1), characterized in that: A connecting sleeve (2) is fixedly installed at one end of the pipe body (1), and a connecting ring (3) is fixedly installed at the other end of the pipe body (1). The connecting sleeve (2) and the connecting ring (3) of adjacent pipe bodies (1) slide together. It also includes four sets of fixing components, including an eccentric roller (4), the two sides of which are rotatably connected to the mounting groove (6) via a rotating shaft (5). The eccentric roller (4) and the rotating shaft (5) are eccentrically arranged. The eccentric roller (4) abuts against one side of the connecting ring (3). The mounting groove (6) is opened around the connecting sleeve (2). A force-applying rod (7) is fixedly installed on the surface of the eccentric roller (4).

2. The prefabricated plastic-lined insulated pipe according to claim 1, characterized in that: Limiting blocks (8) are fixedly installed around the connecting ring (3), and a limiting groove (9) is opened on the inner wall of the connecting sleeve (2). The limiting blocks are slidably installed in the limiting groove (9).

3. A prefabricated plastic-lined insulated pipe according to claim 2, characterized in that: A sealing ring (10) is provided between the connecting ring (3) and the connecting sleeve (2), and the sealing ring (10) is bonded to the inner wall of the connecting sleeve (2).

4. A prefabricated plastic-lined insulated pipe according to claim 1, characterized in that: One end of the force-applying rod (7) is fixedly installed with a pin plate (11), the pin plate (11) is slidably installed in the middle of the pin seat (12), and the pin seat (12) is fixedly installed on the side of the pipe body (1) near the connecting ring (3).

5. A prefabricated plastic-lined insulated pipe according to claim 4, characterized in that: A spring groove (13) is fixedly installed on one side of the pin seat (12), and a positioning pin (14) is slidably installed inside the spring groove (13). The positioning pin (14) is pinned to the pin plate (11) and the pin seat (12).

6. A prefabricated plastic-lined insulated pipe according to claim 5, characterized in that: A connecting rod (15) is fixedly installed on one side of the positioning pin (14). The connecting rod (15) passes through the spring groove (13) and slides with the spring groove (13). A handle plate (16) is fixedly installed on one end of the connecting rod (15) outside the spring groove (13).

7. A prefabricated plastic-lined insulated pipe according to claim 6, characterized in that: A compression spring (17) is slidably sleeved on the surface of the connecting rod (15). The compression spring (17) is in sliding clearance fit with the inside of the spring groove (13). One end of the compression spring (17) abuts against the positioning pin (14), and the other end of the compression spring (17) abuts against the inner wall of the spring groove (13).

8. A prefabricated plastic-lined insulated pipe according to claim 1, characterized in that: The pipe body (1) is provided with a plastic liner (18) inside, and an insulation layer is provided between the plastic liner (18) and the pipe body (1).

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