Pipeline hot melting joint device for water conservancy project

Abstract

The utility model relates to the technical field of pipeline welding, and discloses a pipeline hot melting joint device for hydraulic engineering, which comprises a base, the top of the base is fixedly connected with a connecting seat, and the top of the base is provided with a hot melting component. According to the pipeline hot melting joint device for the water conservancy project, pipelines are firmly fixed by the clamping seats all the time, position deviation is avoided in the whole process, the centering precision of the two pipelines is ensured, the pipelines do not need to be exposed in air for a long time after being heated, but are directly in butt joint under guiding of the sliding rails, heat loss is greatly reduced, and the service life of the pipelines is prolonged. The surface of a fusion layer is prevented from being cooled too early, sufficient molecular diffusion is ensured, the welding strength and quality are improved, accurate butt joint of the two ends is ensured, when the clamping bases on the two sides move oppositely, the hot melting connector body rotates, two sets of pipelines are close to each other and are in butt joint, manual operation steps are reduced, and the construction efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of pipeline welding technology, specifically a pipeline hot-melt joint device for water conservancy projects. Background Technology

[0002] A pipe hot-melt joint device is a type of equipment used in water conservancy projects to connect polyethylene or other thermoplastic pipes. It mainly achieves a strong and sealed connection by heating the pipe ends to melt them and then butt-jointing them under a certain pressure. The device typically includes a heating plate, clamps, a hydraulic system, and a control unit, which can ensure the consistency and reliability of the connection quality and reduce the risk of leakage. It is suitable for water supply, drainage, and other fluid transportation systems. In water conservancy projects, hot-melt butt joint technology has the advantages of high connection strength, corrosion resistance, and leakage resistance, and is widely used in the laying and maintenance of large-diameter pipes.

[0003] However, in the actual process of hot-melt welding of the above-mentioned pipes, it is necessary to first heat the two pipes through the hot-melt joint, then remove them and realign them. Realignment requires extra time, especially in low temperature or windy environments. Temperature drop may cause the surface of the molten layer to solidify prematurely, reducing molecular diffusion and welding quality, and even leading to weak welding or leakage. In view of this, we propose a pipe hot-melt joint device for water conservancy projects. Utility Model Content

[0004] The purpose of this invention is to provide a pipe hot-melt joint device for water conservancy projects to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pipe heat fusion joint device for water conservancy projects, comprising a base, a connecting seat fixedly connected to the top of the base, and a heat fusion assembly disposed on the top of the base, the heat fusion assembly comprising:

[0006] A rotating tube is sleeved with a connecting seat. An insulating tube is fixedly connected to the inner wall of the rotating tube. A rotating tube is fixedly connected to the inner wall of the insulating tube. A spiral groove is opened on the inner wall of the rotating tube. An installation block is fixedly connected to the outer wall of the rotating tube.

[0007] The hot-melt joint body has a mounting groove at its bottom. A spring is fixedly connected to the top surface of the mounting groove, and a limit block is fixedly connected to the end of the spring away from the hot-melt joint body.

[0008] A slide rail is fixedly connected to the top end face of the base. The slide rail is slidably connected to the slider. A crossbar is fixedly connected to the top end face of the slider. A guide block is fixedly connected to the outer wall of the crossbar. A second mounting block is fixedly connected to the top end face of the crossbar.

[0009] The clamping seat has a second mounting groove at its bottom, a locking block fixedly connected to its outer wall, and a top cover hinged to its top. The outer wall of the top cover is fixedly connected with a buckle.

[0010] Preferably, a power cord is fixedly connected to the outer wall of the rotating tube, and the power cord is electrically connected to the rotating tube, the mounting block, and the thermofusion joint body through a fixed connection.

[0011] Preferably, the first mounting block is slidably connected to the first mounting groove, and the first mounting block abuts against the limiting block, thereby fixing the hot melt joint body above the rotating pipe. By replacing the hot melt joint body of different sizes, hot melting of thermoplastic material pipes of different diameters can be achieved.

[0012] Preferably, a spring is fixedly connected to the inner top surface of the second mounting groove, and a limit block is fixedly connected to the end of the spring away from the body of the hot melt joint. The second mounting block abuts against the limit block and is slidably connected to the second mounting groove, thereby fixing the clamping seat above the crossbar. By replacing the clamping seat and the top cover of different sizes, hot melting of thermoplastic pipes of different diameters can be achieved.

[0013] Preferably, the buckle engages with the locking block, and two sets of clamping seats and top covers are provided. The two sets of clamping seats and top covers are symmetrically arranged on both sides of the heat fusion joint body, and the clamping seats and top covers clamp the two sets of pipes.

[0014] Preferably, there are two sets of guide blocks and spiral grooves. The two sets of spiral grooves are equally spaced on the inner wall of the rotating tube, and the two sets of guide blocks are equally spaced on the outer wall of the crossbar. The guide blocks and spiral grooves are slidably connected.

[0015] Preferably, a rubber block is fixedly connected to the inner wall of the clamping seat and the inner wall of the upper cover. The cross-section of the rubber block is triangular, and the apex of the triangle faces away from the body of the heat fusion joint.

[0016] Compared with the prior art, this utility model provides a pipe heat fusion joint device for water conservancy projects, which has the following beneficial effects:

[0017] 1. This pipe hot-melt joint device for water conservancy projects, through its set hot-melt components, ensures that the pipes are always firmly fixed by the clamps, preventing positional shifts throughout the process and ensuring the alignment accuracy of the two pipes. After heating, the pipes do not need to be exposed to air for a long time, but are directly connected under the guidance of the slide rail, greatly reducing heat loss, preventing premature cooling of the molten layer surface, ensuring sufficient molecular diffusion, improving welding strength and quality, and guaranteeing precise connection at both ends. When the clamps on both sides move towards each other, the hot-melt joint body rotates, allowing the two sets of pipes to approach and connect, reducing manual operation steps, improving construction efficiency, and allowing for the replacement of hot-melt joint bodies of different sizes. The second mounting block and the second mounting groove are slidably connected, and the clamps and top cover of different sizes can be replaced to achieve hot-melt of pipes of different diameters. It is compatible with pipes of different diameters, improving the applicability of the equipment.

[0018] 2. This pipe hot-melt joint device for water conservancy projects increases the friction between the clamping seat and the upper cover and the pipe by setting rubber blocks. The rubber blocks are made of a material with a high coefficient of friction, which can generate sufficient resistance when clamping the pipe to prevent the pipe from sliding during heating or docking. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0020] Figure 2 This is a schematic diagram of the base structure of this utility model;

[0021] Figure 3 This is an exploded view of the rotating tube of this utility model;

[0022] Figure 4 This utility model Figure 3 Schematic diagram of the structure of region A in the middle;

[0023] Figure 5 This is a schematic diagram of the limiting block structure of this utility model;

[0024] Figure 6 This is an exploded view of the clamping seat of this utility model;

[0025] Figure 7 This is a schematic diagram of the unfolded structure of the clamping base of this utility model.

[0026] In the diagram: 1. Base; 2. Connecting seat; 3. Hot melt assembly; 301. Rotating tube; 302. Insulating tube; 303. Rotating tube; 304. Spiral groove; 305. Mounting block one; 306. Hot melt joint body; 307. Mounting groove one; 308. Spring; 309. Limiting block; 310. Slide rail; 311. Crossbar; 312. Slider; 313. Guide block; 314. Mounting block two; 315. Clamping seat; 316. Mounting groove two; 317. Locking block; 318. Top cover; 319. Buckle; 4. Power cord; 6. Rubber block. Detailed Implementation

[0027] like Figures 1-7 As shown, this utility model provides a technical solution: a pipe heat fusion joint device for water conservancy projects, including a base 1, a connecting seat 2 fixedly connected to the top of the base 1, and a heat fusion assembly 3 provided on the top of the base 1. The heat fusion assembly 3 includes a rotating tube 301, an insulating tube 302, a rotating tube 303, a spiral groove 304, a first mounting block 305, a heat fusion joint body 306, a first mounting groove 307, a spring 308, a limiting block 309, a slide rail 310, a crossbar 311, a slider 312, a guide block 313, a second mounting block 314, a clamping seat 315, a second mounting groove 316, a locking block 317, a top cover 318, and a buckle 319.

[0028] In one embodiment of this utility model, the rotating tube 301 is sleeved with the connecting seat 2. An insulating tube 302 is fixedly connected to the inner wall of the rotating tube 301, and a rotating tube 303 is fixedly connected to the inner wall of the insulating tube 302. A spiral groove 304 is formed on the inner wall of the rotating tube 303. A mounting block 305 is fixedly connected to the outer wall of the rotating tube 301. A mounting groove 307 is formed at the bottom of the heat fusion joint body 306. A spring 308 is fixedly connected to the inner top surface of the mounting groove 307. The spring 308 is located away from the heat fusion joint body 306. One end is fixedly connected to a limiting block 309, and the mounting block 305 is slidably connected to the mounting groove 307. The mounting block 305 abuts against the limiting block 309, thereby fixing the heat fusion joint body 306 above the rotating tube 301. By replacing the heat fusion joint body 306 of different sizes, heat fusion of thermoplastic material pipes of different diameters can be achieved. A power line 4 is fixedly connected to the outer wall of the rotating tube 301. The power line 4 is electrically connected to the rotating tube 301, the mounting block 305, and the heat fusion joint body 306 through a fixed connection.

[0029] The slide rail 310 is fixedly connected to the top end face of the base 1. The slide rail 310 is slidably connected to the slider 312. A crossbar 311 is fixedly connected to the top end face of the slider 312. A guide block 313 is fixedly connected to the outer wall of the crossbar 311. Two sets of guide blocks 313 and spiral grooves 304 are provided. The two sets of spiral grooves 304 are equally spaced on the inner wall of the rotating tube 303. Two sets of guide blocks 313 are equally spaced on the outer wall of the crossbar 311. The guide blocks 313 are slidably connected to the spiral grooves 304. A second mounting block 314 is fixedly connected to the top end face of the crossbar 311. A second mounting groove 316 is opened at the bottom of the clamping seat 315. A locking block 317 is fixedly connected to the outer wall of the clamping seat 315. A top cover 318 is hinged to the top of the clamping seat 315. A second mounting groove 316 is fixedly connected to the outer wall of the top cover 318. The buckle 319 engages with the clip block 317. Two sets of clamping seats 315 and top covers 318 are provided, symmetrically arranged on both sides of the heat fusion joint body 306. The clamping seats 315 and top covers 318 clamp the two sets of pipes. A spring 308 is fixedly connected to the inner top surface of the second mounting groove 316. A limit block 309 is fixedly connected to the end of the spring 308 away from the heat fusion joint body 306. The second mounting block 314 abuts against the limit block 309 and slides between the second mounting block 314 and the second mounting groove 316, thereby fixing the clamping seat 315 above the crossbar 311. By replacing the clamping seats 315 and top covers 318 of different sizes, heat fusion of thermoplastic pipes of different diameters can be achieved.

[0030] Two thermoplastic pipes are placed on the clamping seat 315, and then the adjacent ends of the two pipes are inserted into the hot melt joint body 306. The pipes are heated and shaped, and then the pipes are pulled out. The top cover 318 is rotated so that the buckle 319 and the locking block 317 are locked. The clamping seats 315 on both sides are pushed so that the two sets of pipes move towards each other, achieving precise docking of the two pipes. Since the pipes are always firmly fixed by the clamping seat 315, there will be no positional shift during the whole process, ensuring the alignment accuracy of the two pipes. After the pipes are heated, they do not need to be exposed to the air for a long time, but are docked directly under the guidance of the slide rail 310, which greatly reduces heat loss, avoids premature cooling of the molten layer surface, ensures sufficient molecular diffusion, improves welding strength and quality, ensures precise docking of both ends, and reduces axial and radial docking errors.

[0031] When the clamping seats 315 on both sides move towards each other, the crossbar 311 moves laterally in sync, thereby causing the guide block 313 to mesh with the spiral groove 304. Since the guide block 313 and the crossbar 311 are limited by the slide rail 310 and can only move laterally, the rotating pipe 301, the rotating pipe 303 and the heat fusion joint body 306 are driven to rotate, so that the two sets of pipes can approach and connect, reducing manual operation steps and improving construction efficiency.

[0032] Mounting block 305 abuts against mounting groove 307, fixing the heat fusion joint body 306 above the rotating pipe 301. By replacing the heat fusion joint body 306 of different sizes, mounting block 314 slides with mounting groove 316, and clamping seat 315 and top cover 318 of different sizes are replaced, thereby realizing the heat fusion of thermoplastic pipes of different diameters. It can be compatible with pipes of different diameters, improving the applicability of the equipment.

[0033] In addition, a rubber block 6 is fixedly connected to the inner wall of the clamping seat 315 and the inner wall of the top cover 318. The cross-section of the rubber block 6 is triangular, with the apex of the triangle facing away from the heat fusion joint body 306. The rubber block 6 increases the friction between the clamping seat 315 and the top cover 318 and the pipe. The material of the rubber block 6 has a high coefficient of friction, which can generate sufficient resistance when clamping the pipe to prevent the pipe from sliding during heating or docking.

[0034] In this invention, during use, two thermoplastic pipes are placed on the clamping seat 315, and then the adjacent ends of these two pipes are inserted into the heat fusion joint body 306 to heat and shape the pipes. The pipes are then pulled out, and the upper cover 318 is rotated to engage the buckle 319 with the locking block 317. Pushing the clamping seats 315 on both sides causes the two sets of pipes to move towards each other, achieving precise docking of the two pipes. Because the pipes are always firmly fixed by the clamping seat 315, no positional shift occurs throughout the process, ensuring the alignment accuracy of the two pipes. After heating, the pipes do not need to be exposed to air for a long time, but can be directly... Guided by the slide rail 310, the welding process greatly reduces heat loss, prevents premature cooling of the molten layer surface, ensures sufficient molecular diffusion, improves welding strength and quality, and guarantees precise docking at both ends. When the clamping seats 315 on both sides move towards each other, the crossbar 311 moves laterally in sync, thereby causing the guide block 313 to mesh with the spiral groove 304. Since the guide block 313 and the crossbar 311 are limited by the slide rail 310 and can only move laterally, they drive the rotating tube 301, the rotating tube 303 and the hot melt joint body 306 to rotate, allowing the two sets of pipes to approach and dock, reducing manual operation steps and improving construction efficiency.

[0035] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A pipe heat fusion joint device for water conservancy projects, comprising a base (1), wherein a connecting seat (2) is fixedly connected to the top of the base (1), characterized in that: A hot-melt assembly (3) is provided on the top of the base (1), and the hot-melt assembly (3) includes: A rotating tube (301) is sleeved with a connecting seat (2). An insulating tube (302) is fixedly connected to the inner wall of the rotating tube (301). A rotating tube (303) is fixedly connected to the inner wall of the insulating tube (302). A spiral groove (304) is opened on the inner wall of the rotating tube (303). An installation block (305) is fixedly connected to the outer wall of the rotating tube (301). The hot fusion connector body (306) has an installation groove (307) at its bottom. A spring (308) is fixedly connected to the top surface of the installation groove (307). A limit block (309) is fixedly connected to the end of the spring (308) away from the hot fusion connector body (306). A slide rail (310) is fixedly connected to the top end face of the base (1). The slide rail (310) is slidably connected to the slider (312). A crossbar (311) is fixedly connected to the top end face of the slider (312). A guide block (313) is fixedly connected to the outer wall of the crossbar (311). An installation block two (314) is fixedly connected to the top end face of the crossbar (311). A clamping seat (315) is provided with an installation groove (316) at the bottom of the clamping seat (315), a locking block (317) is fixedly connected to the outer wall of the clamping seat (315), and a top cover (318) is hinged to the top of the clamping seat (315). A buckle (319) is fixedly connected to the outer wall of the top cover (318).

2. The pipe heat fusion joint device for water conservancy projects according to claim 1, characterized in that: A power cord (4) is fixedly connected to the outer wall of the rotating tube (301). The power cord (4) is electrically connected to the rotating tube (301), the mounting block (305), and the heat fusion connector body (306).

3. A pipe heat fusion joint device for water conservancy projects according to claim 1, characterized in that: The mounting block 1 (305) is slidably connected to the mounting groove 1 (307), and the mounting block 1 (305) abuts against the limiting block (309).

4. A pipe heat fusion joint device for water conservancy projects according to claim 1, characterized in that: A spring (308) is fixedly connected to the inner top surface of the second mounting groove (316). A limiting block (309) is fixedly connected to one end of the spring (308) away from the hot melt joint body (306). The second mounting block (314) abuts against the limiting block (309).

5. A pipe heat fusion joint device for water conservancy projects according to claim 1, characterized in that: The buckle (319) engages with the locking block (317), and two sets of clamping seats (315) and upper covers (318) are provided. The two sets of clamping seats (315) and upper covers (318) are symmetrically arranged on both sides of the heat fusion joint body (306).

6. A pipe heat fusion joint device for water conservancy projects according to claim 1, characterized in that: The guide block (313) and the spiral groove (304) are provided in two sets. The two sets of spiral grooves (304) are equally spaced on the inner wall of the rotating tube (303), and the two sets of guide blocks (313) are equally spaced on the outer wall of the crossbar (311). The guide block (313) and the spiral groove (304) are slidably connected.

7. A pipe heat fusion joint device for water conservancy projects according to claim 1, characterized in that: A rubber block (6) is fixedly connected to the inner wall of the clamping seat (315), and a rubber block (6) is fixedly connected to the inner wall of the upper cover (318). The cross-section of the rubber block (6) is triangular, and the sharp corner of the triangle faces away from the hot melt joint body (306).

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