Polyurethane direct-buried thermal insulation pipe joint exhaust patch structure

Abstract

The utility model relates to the technical field of thermal insulation pipe, disclose polyurethane direct -buried thermal insulation pipe joint exhaust mouth -filling structure, including the shell, the outer wall of shell is equipped with the mouth -filling mechanism, the mouth -filling mechanism is used for the mouth -filling of pipeline, the outer wall of shell is equipped with the clamping mechanism for clamping positioning, the outer wall of shell is equipped with fixed establishment, the mouth -filling mechanism includes the welding layer, the top of welding layer is fixedly connected with the bottom of shell, the bottom fixed connection of welding layer has the filling layer no.

Description

Technical Field

[0001] This utility model relates to the field of thermal insulation pipe technology, and in particular to the exhaust port structure of polyurethane direct-buried thermal insulation pipe joint. Background Technology

[0002] Insulated pipes are composite pipes that combine pipeline transportation and thermal insulation properties. They typically consist of three layers: a working steel pipe, an insulation layer, and an outer protective layer. The working steel pipe is responsible for transporting the medium. The middle insulation layer often uses high-efficiency thermal insulation materials such as polyurethane foam and rock wool, which can significantly reduce heat and cold loss of the medium during transportation. The outer layer is formed by materials such as polyethylene, providing corrosion resistance, aging resistance, and mechanical protection. This type of pipe is widely used in centralized heating, central air conditioning, and industrial pipelines. It improves energy transmission efficiency, reduces energy consumption costs, and can adapt to various installation environments such as underground direct burial and overhead laying. With its long-lasting insulation effect, convenient construction, and long service life, it has become a key piece of equipment for achieving energy conservation and consumption reduction in modern pipeline engineering.

[0003] Polyurethane direct-buried insulated pipes are high-efficiency insulated pipes specifically designed for underground direct-buried environments. Their core structure consists of a working steel pipe, a polyurethane foam insulation layer, and a high-density polyethylene outer protective pipe, all tightly composited. However, during use, the pipes often experience wear and tear, leading to ruptures. With technological advancements, venting and venting structures have become crucial components designed to address the insulation and venting needs at pipe joints. These structures primarily solve the problem of gas accumulation caused by temperature changes and medium flow after pipe laying. They typically consist of a sealing jacket, an insulation filling layer, and a dedicated venting valve. The joint is first sealed with a high-density polyethylene jacket, and then filled with polyurethane foam to ensure insulation continuity. A venting device with a one-way valve is pre-installed at the top of the venting joint to directionally discharge water vapor and air generated during pipe operation, preventing damage to the insulation layer and pipe seal due to excessive air pressure. However, this type of venting structure is relatively expensive, and with prolonged use, the internal filling layer absorbs water and expands, causing the venting joint to loosen or even burst. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a polyurethane direct-buried insulation pipe joint exhaust port structure, which aims to improve the problems of high cost of existing port structures and the expansion of the internal filling layer due to water absorption after long-term use, which can lead to loosening or even cracking of the port.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a polyurethane direct-buried insulated pipe joint exhaust port structure, including a shell, a port repair mechanism on the outer wall of the shell for repairing the pipe, a clamping mechanism for clamping and positioning on the outer wall of the shell, and a fixing mechanism on the outer wall of the shell. The patching mechanism includes a welding layer, the top of which is fixedly connected to the bottom of the outer shell, a filling layer one is fixedly connected to the bottom of the welding layer, a filling layer two is fixedly connected to the outer wall of the filling layer one, a plurality of circular holes one are provided on the outer wall of the filling layer one, and a connecting component is provided on the outer wall of the filling layer two.

[0006] As a further description of the above technical solution: The connecting assembly includes a patch layer, the inner wall of which is fixedly connected to the outer wall of the filling layer 2, and the outer wall of the patch layer is provided with multiple rivets.

[0007] As a further description of the above technical solution: The clamping mechanism includes a fixing plate, the bottom of which is fixedly connected to the top of the patch layer. The inner wall of the fixing plate has a threaded hole, and a threaded rod is threadedly connected to the inner wall of the threaded hole. A fixing ring is fixedly connected to the outer wall of the threaded rod, and a clamping assembly is provided at the other end of the fixing ring.

[0008] As a further description of the above technical solution: The clamping assembly includes a clamping plate, the outer side of which is rotatably connected to the inner side of the threaded rod, and the inner wall of the clamping plate has a circular hole.

[0009] As a further description of the above technical solution: The fixing mechanism includes a second fixing ring, the inner wall of which is fixedly connected to the outer wall of the patch layer. Multiple connecting blocks are provided on both the left and right sides of the second fixing ring, and a support component is provided on the outer side of each connecting block.

[0010] As a further description of the above technical solution: The support assembly includes a fixing ring three, the inner side of which is fixedly connected to the outer side of the connecting block, and a connecting rod is threadedly connected to the inner wall of the fixing ring three.

[0011] As a further description of the above technical solution: The outer shell has a third filling layer inside, and an inner tube is fixedly connected inside the third filling layer.

[0012] As a further description of the above technical solution: The bottom of the outer casing is provided with a sealing ring, which is used to seal the pipe.

[0013] This utility model has the following beneficial effects: 1. In this utility model, firstly, filling layer one and filling layer two are filled into the broken part of the shell. At this time, the patch layer is placed on the surface of filling layer one and filling layer two. Then, the patch layer is fixed to the outer wall of filling layer one by rivets. Next, it is welded to the broken part of the shell by welding layer. At the same time, the sealing ring is placed on the broken surface. Then, fixing ring two is put on the outer wall of patch layer. At the same time, fixing ring three and connecting rod are used to fix them together, so as to achieve the function of stably patching the broken part. 2. In this utility model, during the patching process, the threaded rod is rotated. At this time, the threaded rod will move in the threaded hole one inside the fixed plate. Then the threaded rod will move inward. At the same time, the fixed ring one will play a blocking role. Meanwhile, the threaded rod will rotate in the circular hole two in the clamping plate, pushing the circular hole two to move, so that the clamping plate clamps the shell, realizing the positioning function during the patching process. Attached Figure Description

[0014] Figure 1 This is a front view of the exhaust port structure of the polyurethane direct-buried insulation pipe joint proposed in this utility model. Figure 2 This is a partial structural disassembly diagram of the outer shell of the polyurethane direct-buried insulation pipe joint exhaust port structure proposed in this utility model. Figure 3 This is a partial structural disassembly diagram of the fixing plate of the polyurethane direct-buried insulation pipe joint exhaust port structure proposed in this utility model. Figure 4 This is a partial structural breakdown of the filling layer of the polyurethane direct-buried insulation pipe joint exhaust port structure proposed in this utility model. Figure 5 This is a partial structural breakdown diagram of the venting and venting structure of the polyurethane direct-buried insulation pipe joint proposed in this utility model.

[0015] Legend: 1. Outer shell; 2. Joint repair mechanism; 201. Welding layer; 202. Filler layer one; 203. Filler layer two; 204. Circular hole one; 205. Connecting assembly; 2051. Joint repair layer; 2052. Rivet; 3. Clamping mechanism; 301. Fixing plate; 302. Threaded hole one; 303. Fixing ring one; 304. Threaded rod; 305. Clamping assembly; 3051. Clamping plate; 3052. Circular hole two; 4. Fixing mechanism; 401. Fixing ring two; 402. Connecting block; 403. Support assembly; 4031. Fixing ring three; 4032. Connecting rod; 5. Filler layer three; 6. Inner tube; 7. Sealing ring. Detailed Implementation

[0016] 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.

[0017] Please see the appendix Figure 1 Appendix Figure 4 and attached Figure 5 An embodiment of this utility model is provided: a polyurethane direct-buried insulated pipe joint exhaust port structure, including a shell 1, a port repair mechanism 2 provided on the outer wall of the shell 1, the port repair mechanism 2 being used to repair the pipe, a clamping mechanism 3 for clamping and positioning on the outer wall of the shell 1, and a fixing mechanism 4 on the outer wall of the shell 1. The patching mechanism 2 includes a welding layer 201, the top of which is fixedly connected to the bottom of the outer shell 1. A first filling layer 202 is fixedly connected to the bottom of the welding layer 201. A second filling layer 203 is fixedly connected to the outer wall of the first filling layer 202. The outer wall of the first filling layer 202 is provided with a plurality of circular holes 204. The outer wall of the second filling layer 203 is provided with a connecting component 205. The connecting component 205 includes a patching layer 2051, the inner wall of which is fixedly connected to the outer wall of the second filling layer 203. The outer wall of the patching layer 2051 is provided with a plurality of rivets 2052. Specifically, it includes a main outer shell 1. The outer wall of the outer shell 1 is specially designed and equipped with a dedicated jointing mechanism 2. The main function of the jointing mechanism 2 is to perform precise and effective jointing operations on various types of pipes. In addition, the outer wall of the outer shell 1 is also carefully designed with a clamping mechanism 3 for clamping and precise positioning to ensure the stability and accuracy of the entire device during operation. At the same time, the outer wall of the outer shell 1 is also equipped with a fixing mechanism 4 to further enhance the overall structural stability. The jointing mechanism 2 is constructed by a welding layer 201. The top of the welding layer 201 is fixedly connected to the bottom of the outer shell 1 by a robust connection, ensuring the structural reliability. A filler layer 2 is fixedly connected to the bottom of the welding layer 201. 02. Filler layer 203 is further fixedly connected to the outer wall of filler layer 1 202, forming multiple protective layers. Multiple circular holes 204 are evenly opened on the outer wall of filler layer 1 202. The design of these holes is to improve the permeability and bonding strength of the patching material. In addition, a connecting component 205 is provided on the outer wall of filler layer 203. The connecting component 205 is composed of patching layer 2051. The inner wall of patching layer 2051 is tightly fixedly connected to the outer wall of filler layer 203, ensuring the reliability of the connection. Multiple rivets 2052 are provided on the outer wall of patching layer 2051. The presence of these rivets 2052 greatly enhances the connection strength between patching layer 2051 and the pipe, ensuring the stability and durability of the patching operation.

[0018] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 The clamping mechanism 3 includes a fixed plate 301. The bottom of the fixed plate 301 is fixedly connected to the top of the patch layer 2051. The inner wall of the fixed plate 301 is provided with a threaded hole 302. A threaded rod 304 is threadedly connected to the inner wall of the threaded hole 302. A fixing ring 303 is fixedly connected to the outer wall of the threaded rod 304. The other end of the fixing ring 303 is provided with a clamping assembly 305. The clamping assembly 305 includes a clamping plate 3051. The outer side of the clamping plate 3051 is rotatably connected to the inner side of the threaded rod 304. The inner wall of the clamping plate 3051 is provided with a circular hole 3052. Specifically, the clamping mechanism 3 consists of a fixed plate 301, which is fixed to the top of the patch layer 2051 to ensure the stability and reliability of the clamping mechanism 3. A threaded hole 302 is formed on the inner wall of the fixed plate 301. The hole has a threaded structure inside, allowing for a tight connection with the threaded rod 304. A fixing ring 303 is fixedly connected to the outer wall of the threaded rod 304. This ring further fixes the position of the ring 303, ensuring it does not shift during operation. The other end of 03 is connected to the clamping assembly 305, which is the core part of the clamping mechanism 3. It is responsible for clamping and fixing the object to be processed. The clamping assembly 305 is mainly composed of a clamping plate 3051. The outer side of this plate is rotatably connected to the inner side of the threaded rod 304. In this way, the position of the clamping plate 3051 can be controlled by rotating the threaded rod 304. A circular hole 3052 is opened on the inner wall of the clamping plate 3051. The purpose of this hole is to allow the clamping plate 3051 to clamp the object more tightly, thereby improving the stability and efficiency of clamping.

[0019] Please see the appendix Figure 1 and attached Figure 5 The fixing mechanism 4 includes a second fixing ring 401, the inner wall of which is fixedly connected to the outer wall of the patch layer 2051. Multiple connecting blocks 402 are provided on both the left and right sides of the second fixing ring 401. A support component 403 is provided on the outer side of the connecting block 402. The support component 403 includes a third fixing ring 4031, the inner side of which is fixedly connected to the outer side of the connecting block 402. A connecting rod 4032 is threadedly connected to the inner wall of the third fixing ring 4031. Specifically, the fixing mechanism 4 includes a component called fixing ring 2 401. The inner wall of fixing ring 2 401 is tightly connected to the outer wall of patch layer 2051 through a reliable fixing method, ensuring that there is no relative displacement between the two. On the left and right sides of fixing ring 2 401, multiple connecting blocks 402 are arranged. These connecting blocks 402 are evenly distributed to enhance the stability of the overall structure and the firmness of the connection. The outer part of each connecting block 402 is further provided with a support component 403. The support component 403 plays a key supporting and reinforcing role in the structure. The support component 403 is mainly composed of fixing ring 3 4031. The inner part of fixing ring 3 4031 is connected to the outer part of connecting block 402 through a strong fixing method, ensuring the stability and reliability of the connection. In addition, the inner wall of fixing ring 3 4031 is threaded to connecting rod 4032, thereby realizing the tight integration of connecting rod 4032 with the entire fixing mechanism 4, further improving the stability and functionality of the overall structure.

[0020] Please see the appendix Figure 1 and attached Figure 2The outer shell 1 has a filling layer 3 5 inside, and an inner tube 6 is fixedly connected inside the filling layer 3 5. The bottom of the outer shell 1 is provided with a sealing ring 7, which is used to seal the pipe. Specifically, the outer casing 1 has a filling layer 3 5 in its internal space, which is placed between the inner walls of the outer casing 1. Inside the filling layer 3 5, an inner tube 6 is installed by a fixed connection. The inner tube 6 is tightly connected to the filling layer 3 5 to ensure its stability and functionality. In addition, a sealing ring 7 is installed at the bottom of the outer casing 1. The main function of the sealing ring 7 is to effectively seal the pipe and prevent any form of leakage, thereby ensuring the safety and reliability of the entire device.

[0021] Working principle: First, filler layer 1 202 and filler layer 203 are filled into the fracture of the outer shell 1. Then, patch layer 2051 is placed on the surface of filler layer 1 202 and filler layer 203. Then, patch layer 2051 is fixed to the outer wall of filler layer 1 202 by rivet 2052. Next, it is welded to the fracture of the outer shell 1 by welding layer 201. At the same time, sealing ring 7 is placed on the fracture surface. Then, fixing ring 2 401 is put on the outer wall of patch layer 2051. At the same time, it is fixedly connected together by fixing ring 3 4031 and connecting rod 4032, which realizes the function of stably patching the fracture. During the patching process, the threaded rod 304 is rotated. At this time, the threaded rod 304 will move in the threaded hole 302 inside the fixed plate 301. Then the threaded rod 304 will move inward, and the fixed ring 303 will act as a shield. At the same time, the threaded rod 304 will rotate in the circular hole 3052 in the clamping plate 3051, pushing the circular hole 3052 to move, so that the clamping plate 3051 clamps the outer shell 1, realizing the positioning function during the patching process.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 polyurethane direct-buried insulation pipe joint exhaust port structure, comprising an outer shell (1), characterized in that: The outer wall of the outer shell (1) is provided with a patching mechanism (2), which is used to patch the pipe. The outer wall of the outer shell (1) is provided with a clamping mechanism (3) for clamping and positioning. The outer wall of the outer shell (1) is provided with a fixing mechanism (4). The patching mechanism (2) includes a welding layer (201), the top of which is fixedly connected to the bottom of the outer shell (1), a filling layer one (202) is fixedly connected to the bottom of the welding layer (201), a filling layer two (203) is fixedly connected to the outer wall of the filling layer one (202), a plurality of circular holes one (204) are provided on the outer wall of the filling layer one (202), and a connecting component (205) is provided on the outer wall of the filling layer two (203).

2. The polyurethane direct-buried insulation pipe joint exhaust port structure according to claim 1, characterized in that: The connecting component (205) includes a patch layer (2051), the inner wall of which is fixedly connected to the outer wall of the filling layer (203), and the outer wall of the patch layer (2051) is provided with a plurality of rivets (2052).

3. The polyurethane direct-buried insulation pipe joint exhaust port structure according to claim 1, characterized in that: The clamping mechanism (3) includes a fixing plate (301), the bottom of the fixing plate (301) is fixedly connected to the top of the patch layer (2051), the inner wall of the fixing plate (301) is provided with a threaded hole (302), the inner wall of the threaded hole (302) is threadedly connected with a threaded rod (304), the outer wall of the threaded rod (304) is fixedly connected with a fixing ring (303), and the other end of the fixing ring (303) is provided with a clamping assembly (305).

4. The polyurethane direct-buried insulation pipe joint exhaust port structure according to claim 3, characterized in that: The clamping assembly (305) includes a clamping plate (3051), the outer side of which is rotatably connected to the inner side of the threaded rod (304), and the inner wall of the clamping plate (3051) is provided with a circular hole (3052).

5. The polyurethane direct-buried insulation pipe joint exhaust port structure according to claim 1, characterized in that: The fixing mechanism (4) includes a second fixing ring (401), the inner wall of the second fixing ring (401) is fixedly connected to the outer wall of the patch layer (2051), and multiple connecting blocks (402) are provided on the left and right sides of the second fixing ring (401), and a support component (403) is provided on the outer side of the connecting block (402).

6. The polyurethane direct-buried insulation pipe joint exhaust port structure according to claim 5, characterized in that: The support assembly (403) includes a fixing ring three (4031), the inner side of the fixing ring three (4031) is fixedly connected to the outer side of the connecting block (402), and the inner wall of the fixing ring three (4031) is threaded with a connecting rod (4032).

7. The polyurethane direct-buried insulation pipe joint exhaust port structure according to claim 1, characterized in that: The outer shell (1) has a filling layer three (5) inside, and an inner tube (6) is fixedly connected inside the filling layer three (5).

8. The polyurethane direct-buried insulation pipe joint exhaust port structure according to claim 1, characterized in that: The bottom of the outer casing (1) is provided with a sealing ring (7), which is used to seal the pipe.

Images