HDPE double-wall corrugated pipe heating device

Abstract

The utility model discloses an HDPE double-wall corrugated pipe heating device which comprises a heating device body, the heating device body is arranged in an HDPE double-wall corrugated pipe and comprises a spring, a heating wire is fixedly installed on the inner wall of the spring and is electrically connected with a wire, the top of the spring is fixedly connected with a connecting column, and the connecting column is fixedly connected with the inner wall of the spring. The end, away from the spring, of the connecting column is fixed to a connecting ring, and a connecting rope is fixedly installed on the connecting ring. According to the heating device for the HDPE double-wall corrugated pipe, the position, needing to be bent, of the HDPE double-wall corrugated pipe is heated to be softened, at the moment, the two sides of the bent position of the HDPE double-wall corrugated pipe are stressed, bending work of the HDPE double-wall corrugated pipe is completed, meanwhile, the inner wall of the bent position of the HDPE double-wall corrugated pipe is supported through a spring in the bent portion, and therefore the bending work of the HDPE double-wall corrugated pipe is completed. The bending position of the HDPE double-wall corrugated pipe is prevented from being greatly sunken, and the bending quality of the HDPE double-wall corrugated pipe is improved.

Description

Technical Field

[0001] The utility model relates to the field of corrugated pipes, in particular to a heating device for HDPE double-wall corrugated pipes. Background Technique

[0002] HDPE corrugated pipe is a kind of high-density polyethylene corrugated pipe, belonging to thermoplastic plastics. The HDPE double-wall corrugated pipe has a corrugated pipe with a double-layer structure, and both the outer layer and the inner layer are made of high-density polyethylene (HDPE) material; its advantages are light weight, corrosion resistance, anti-aging, high strength, good flexibility, etc. It is widely used in the fields of municipal drainage, sewage discharge, agricultural irrigation, etc.

[0003] When the corrugated pipe is in use, it is necessary to bend the corrugated pipe to facilitate its installation and connection. When bending the plastic corrugated pipe, it is time-consuming and laborious, and at the same time, it is easy to damage the corrugated pipe, resulting in the failure of the pipe bending and the situation of being unable to be used, causing waste of the corrugated pipe. Content of the Utility Model

[0004] The purpose of the utility model is to provide a heating device for HDPE double-wall corrugated pipes to solve the defects mentioned in the above background technique.

[0005] To achieve the above purpose, a heating device for HDPE double-wall corrugated pipes is provided, including a heating device body, the heating device body is arranged inside the HDPE double-wall corrugated pipe, the heating device body includes a spring, and a heating wire is fixedly installed on the inner wall of the spring. At the same time, the heating wire is electrically connected to a wire, and the top of the spring is fixedly connected to a connecting column. One end of the connecting column away from the spring is fixedly connected to a connecting ring, and a connecting rope is fixedly installed on the connecting ring.

[0006] Preferably, the cross-sections of the spring and the heating wire are concentric circle structures, and the heating wire heats the spring through heat transfer by the wire.

[0007] Preferably, the outside of the connecting rope is fixedly connected to the wire through multiple groups of cable ties, and the end of the wire is connected to a start switch.

[0008] Preferably, a positioning groove is opened on the inner wall of the spring, and the positioning groove is arranged in a spiral shape, and the partial cross-section of the positioning groove is arranged in an arc shape.

[0009] Preferably, the positioning groove is adapted to the size of the heating wire, and the heating wire is fixedly bonded inside the positioning groove through high-temperature resistant glue.

[0010] Preferably, the spring is arranged in a spiral shape and inserted inside the HDPE double-wall corrugated pipe, and the spring heated by the heating wire heats the HDPE double-wall corrugated pipe.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] The position of the HDPE double-wall corrugated pipe that needs to be bent is heated and softened. At this time, forces are applied to both sides of the bent position of the HDPE double-wall corrugated pipe to complete the bending work of the HDPE double-wall corrugated pipe. At the same time, inside the HDPE double-wall corrugated pipe during bending, the inner wall of the bent position is supported by a spring to prevent a large depression at the bent position of the HDPE double-wall corrugated pipe and improve the bending quality of the HDPE double-wall corrugated pipe.

[0013] The size of the spring is smaller than that of the HDPE double-wall corrugated pipe, enabling the spring to move smoothly inside the HDPE double-wall corrugated pipe; after the position of the spring inside the HDPE double-wall corrugated pipe is confirmed, the position of the HDPE double-wall corrugated pipe that needs to be bent can be heated and softened, making it more labor-saving during bending. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a front view schematic diagram of the structure of the utility model;

[0015] Figure 2 is a schematic diagram of the heating device body of the utility model inserted into the HDPE double-wall corrugated pipe;

[0016] Figure 3 is a partial structure schematic diagram of the heating device body of the utility model;

[0017] Figure 4 is a schematic diagram of the HDPE double-wall corrugated pipe of the utility model being bent;

[0018] Figure 5 is a schematic cross-sectional structure diagram of the spring and heating wire of the utility model.

[0019] Reference numerals in the figures: 1, connecting rope; 2, connecting ring; 3, connecting column; 4, spring; 41, positioning groove; 5, HDPE double-wall corrugated pipe; 6, heating wire; 61, wire; 7, heating device body. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Please refer to Figures 1-5 , the utility model provides a heating device for HDPE double-wall corrugated pipe, including a heating device body 7. The heating device body 7 is arranged inside the HDPE double-wall corrugated pipe 5. The heating device body 7 includes a spring 4, and a heating wire 6 is fixedly installed on the inner wall of the spring 4. At the same time, the heating wire 6 is electrically connected to the wire 61. And the top of the spring 4 is fixedly connected to the connecting column 3. One end of the connecting column 3 away from the spring 4 is fixedly connected to the connecting ring 2, and a connecting rope 1 is fixedly installed on the connecting ring 2.

[0021] Working principle: Insert the spring 4 on the heating device body 7 into the position where the HDPE double-wall corrugated pipe 5 needs to be bent. At this time, start the external switch of the heating wire 6. The heating wire 6 is energized and heated. The spring 4 heated by the heating wire 6 heats the HDPE double-wall corrugated pipe 5. The position of the HDPE double-wall corrugated pipe 5 that needs to be bent is heated and softened. At this time, force is applied to both sides of the bending position of the HDPE double-wall corrugated pipe 5 to complete the bending work of the HDPE double-wall corrugated pipe 5. At the same time, inside the HDPE double-wall corrugated pipe 5 during bending, the inner wall of the bending position is supported by the spring 4 to prevent a large depression from occurring at the bending position of the HDPE double-wall corrugated pipe 5 and improve the bending quality of the HDPE double-wall corrugated pipe 5.

[0022] As a preferred embodiment, the cross-sections of the spring 4 and the heating wire 6 are concentric circle structures, and the heating wire 6 transfers heat to the spring 4 through the wire 61 for heating.

[0023] As a preferred embodiment, the outer side of the connecting rope 1 is fixedly connected to the wire 61 through multiple cable ties, and the end of the wire 61 is connected to the start switch.

[0024] As shown in Figures 1-4 : The heating wire 6 transfers heat to the spring 4 through the wire 61 for heating. The high-temperature spring heats the position of the HDPE double-wall corrugated pipe 5 that needs to be bent. After the HDPE double-wall corrugated pipe 5 is heated, it is easier to bend or deform; improve the performance of the HDPE material, increase its flexibility, and reduce its hardness.

[0025] As a preferred embodiment, a positioning groove 41 is formed on the inner wall of the spring 4, and the positioning groove 41 is arranged in a spiral shape. At the same time, the local cross-section of the positioning groove 41 is arranged in an arc shape.

[0026] The positioning groove 41 is adapted to the size of the heating wire 6, and the heating wire 6 is adhesively fixed inside the positioning groove 41 through high-temperature resistant glue.

[0027] The heating wire 6 is adhesively fixed inside the positioning groove 41 through high-temperature resistant glue; both the heating wire 6 and the spring 4 are arranged in a spiral shape, and the heating wire 6 can evenly heat the spring 4.

[0028] The spring 4 is arranged in a spiral shape and inserted into the HDPE double-wall corrugated pipe 5, and the spring 4 heated by the heating wire 6 heats the HDPE double-wall corrugated pipe 5.

[0029] As shown in Figures 1-4As shown: During actual operation, hold the connecting rope 1 by hand, place the spring 4 inside the HDPE double-wall corrugated pipe 5. The size of the spring 4 is smaller than that of the HDPE double-wall corrugated pipe 5, so that the spring 4 can move smoothly inside the HDPE double-wall corrugated pipe 5;

[0030] After the position of the spring 4 inside the HDPE double-wall corrugated pipe 5 is confirmed, the position of the HDPE double-wall corrugated pipe 5 that needs to be bent can be heated and softened, making it more labor-saving when bending.

Claims

1. An HDPE double-wall corrugated pipe heating device, comprising a heating device body (7), characterized in that: The heating device body (7) is arranged inside the HDPE double-wall corrugated pipe (5). The heating device body (7) includes a spring (4), and a heating wire (6) is fixedly installed on the inner wall of the spring (4). At the same time, the heating wire (6) is electrically connected to a wire (61). And the top of the spring (4) is fixedly connected to a connecting column (3). One end of the connecting column (3) away from the spring (4) is fixedly connected to a connecting ring (2), and a connecting rope (1) is fixedly installed on the connecting ring (2).

2. The HDPE double-wall corrugated pipe heating device according to claim 1, wherein: The cross-sections of the spring (4) and the heating wire (6) are concentric circle structures, and the heating wire (6) heats the spring (4) by heat transfer through the wire (61).

3. The HDPE double-wall corrugated pipe heating device according to claim 1, characterized in that: The outer side of the connecting rope (1) is fixedly connected to the wire (61) through multiple groups of cable ties, and the end of the wire (61) is connected to a start switch.

4. The HDPE double-wall corrugated pipe heating device according to claim 1, characterized in that: A positioning groove (41) is formed on the inner wall of the spring (4), and the positioning groove (41) is arranged in a spiral shape. At the same time, the partial cross-section of the positioning groove (41) is arranged in an arc shape.

5. The HDPE double-wall corrugated pipe heating device according to claim 4, characterized in that: The positioning groove (41) is adapted to the size of the heating wire (6), and the heating wire (6) is adhesively fixed inside the positioning groove (41) with high-temperature resistant glue.

6. The heating device for HDPE double-wall corrugated pipe according to claim 1, wherein: The spring (4) is arranged in a spiral shape and inserted inside the HDPE double-wall corrugated pipe (5), and the spring (4) heated by the heating wire (6) heats the HDPE double-wall corrugated pipe (5).

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