Electric fusion joint

Abstract

The present application relates to the field of electric fusion joints, in particular to electric fusion joints, comprising an electric fusion layer, a heat preservation layer is sheathed on the outside of the electric fusion layer, an insulating layer is sheathed on the outside of the heat preservation layer, the electric fusion layer comprises an electric fusion sleeve and an electric heating wire, a connecting ring is fixedly installed in the middle of the inner side of the electric fusion sleeve, and the cross section of the connecting ring is a "Y"-shaped structure, a heat conduction ring is provided in the middle of the electric fusion sleeve, a fixing ring is fixedly installed in the middle of the inner side of the heat conduction ring, and memory metal sheets are fixedly installed on both sides of the fixing ring, the heat conduction ring is arranged inside the electric fusion sleeve, and the fixing ring and the memory metal sheet are arranged inside the connecting ring, and the material of the connecting ring is high temperature resistant rubber, and the fixing ring and the memory metal sheet are arranged inside the connecting ring, and the material of the connecting ring is high temperature resistant rubber, so that the memory metal sheet is deformed by heat and the side of the connecting ring is tightly attached to the pipe, thereby filling and blocking the gap between the pipes.

Description

Technical Field

[0001] The present invention relates to the field of electrofusion joints, and in particular to electrofusion joints. Background Art

[0002] Electrofusion fittings are a technology for connecting pipes, especially in polyethylene (PE) pipe systems. This technology uses an electrofusion fitting (containing a heating wire) to complete the connection. The working principle is that the current passes through the heating wire, generating heat, melting the pipe fitting and the end of the pipe to be connected, and forming a strong, sealed joint after cooling.

[0003] When current electric fusion joints are installed, there is a gap between the pipes. During transportation, impurities are easily stuck in the gap, causing the pipe to be blocked, making it inconvenient to use. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the present application provides an electric fusion joint.

[0005] The above technical objectives of this application are achieved through the following technical solutions:

[0006] The electric fusion joint comprises an electric fusion layer, a heat preservation layer is sheathed on the outside of the electric fusion layer, an insulating layer is sheathed on the outside of the heat preservation layer, the electric fusion layer comprises an electric fusion sleeve and an electric heating wire, a connecting ring is fixedly installed in the middle of the inner side of the electric fusion sleeve, and the cross section of the connecting ring is a "Y"-shaped structure, a heat conduction ring is provided in the middle of the electric fusion sleeve, a fixing ring is fixedly installed in the middle of the inner side of the heat conduction ring, memory metal sheets are fixedly installed on both sides of the fixing ring, the heat conduction ring is arranged inside the electric fusion sleeve, and the fixing ring and the memory metal sheet are arranged inside the connecting ring, and the material of the connecting ring is high temperature resistant rubber.

[0007] By adopting the above scheme, a heat preservation layer is provided on the outer side of the electric melting layer, and an insulating layer is provided on the outer side of the heat preservation layer, so that the heat preservation layer can insulate the electric melting layer to avoid heat loss during the electric melting process. The insulating layer provides insulation performance for the device, thereby improving the safety of the device. A connecting ring is fixedly installed in the middle of the inner side of the electric melting sleeve, and the cross section of the connecting ring is a "Y"-shaped structure, so that the connecting ring can be set at one end of the pipeline to block the gap between the pipelines and avoid impurities getting stuck in the gap between the pipelines and causing blockage. A fixing ring is fixedly installed in the middle of the inner side of the heat conducting ring, and memory metal sheets are fixedly installed on both sides of the fixing ring, so that the heat conducting ring absorbs heat and transfers it to the memory metal sheet during the melting connection process. The memory metal sheet is deformed by heat, and is arranged inside the connecting ring through the fixing ring and the memory metal sheet. The connecting ring is made of high-temperature resistant rubber, so that the side of the connecting ring is pressed against the pipeline after the memory metal sheet is deformed by heat, thereby filling and blocking the gap between the pipelines.

[0008] Furthermore, the heating wire is in a spiral structure and is arranged inside the electric fusion sleeve.

[0009] By adopting the above scheme, the electric heating wire forms a spiral structure, and the electric heating wire is arranged inside the electric fusion sleeve, so that the electric heating wire heats the electric fusion layer and the outer side of the pipeline to melt and fuse.

[0010] Furthermore, both ends of the heating wire are fixedly mounted with electrical terminals, and the electrical terminals are arranged outside the electric fusion sleeve.

[0011] By adopting the above solution, the power connection terminal is arranged on the outside of the electric fusion sleeve, so as to facilitate connection with an external power source to supply power for heating the heating wire.

[0012] Furthermore, the insulation layer is made of foamed insulation ceramic material, and through holes are provided at both ends of one side of the insulation layer.

[0013] By adopting the above scheme, the material of the insulation layer is foamed insulation ceramic material, which facilitates the insulation of the heated melting of the electric fusion layer to avoid heat loss, and can maintain the external shape of the electric fusion layer during the melting connection process, so that the electric fusion layer is fixedly connected to the outside of the pipeline.

[0014] Furthermore, the insulating layer includes an insulating sleeve, and power connection interfaces are fixedly installed at both ends of one side of the insulating sleeve.

[0015] By adopting the above solution, power connection interfaces are fixedly installed at both ends of one side of the insulating sleeve, which is convenient for connection with external power transmission lines, thereby facilitating power supply for the operation of the device.

[0016] Furthermore, the power connection terminal is inserted into the through hole, and the power connection interface is electrically connected to the power connection terminal.

[0017] By adopting the above solution, the power connection interface is electrically connected to the power connection terminal, so as to facilitate the power supply to the heating wire.

[0018] Furthermore, sealing rings are fixedly installed at both ends of the insulating sleeve, and the sealing rings are arranged outside the electric melting layer and the thermal insulation layer.

[0019] By adopting the above scheme, the sealing ring is arranged on the outside of the electric melting layer and the thermal insulation layer, so that the insulating layer can be sleeved on the outside of the electric melting layer and the thermal insulation layer, thereby improving the safety performance of the device.

[0020] Furthermore, the insulating sleeve and the sealing ring are both made of fluororubber.

[0021] By adopting the above solution, the materials of the insulating sleeve and the sealing ring are both fluororubber, which has extremely strong corrosion resistance and mechanical properties, can effectively increase the service life of the device, and facilitate improving the stability of the fixed connection of the pipeline.

[0022] In summary, this application has the following technical effects:

[0023] An insulation layer is sleeved on the outside of the electric fusion layer, and an insulating layer is sleeved on the outside of the insulation layer, so that the insulation layer can insulate the electric fusion layer to avoid heat loss during the electric fusion process. The insulating layer provides insulation performance for the device and improves the safety of the device. A connecting ring is fixedly installed in the middle of the inner side of the electric fusion sleeve. The cross section of the connecting ring is a "Y"-shaped structure, which is convenient for the connecting ring to be sleeved on one end of the pipeline, and can block the gap between the pipelines to avoid impurities stuck in the gap between the pipelines and cause blockage. A fixing ring is fixedly installed in the middle of the inner side of the heat conductive ring, and memory metal sheets are fixedly installed on both sides of the fixing ring, so that the heat conductive ring absorbs heat and transfers it to the memory metal sheet during the melting connection process. The memory metal sheet is deformed by heat, and is arranged inside the connecting ring through the fixing ring and the memory metal sheet. The connecting ring is made of high-temperature resistant rubber, which is convenient for the memory metal sheet to be deformed by heat and the side of the connecting ring is tightly attached to the pipeline, thereby filling and blocking the gap between the pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is the appearance structure diagram of this application;

[0025] Figure 2 is an exploded view of this application;

[0026] Figure 3 It is an exploded view of the fused layer of the present application;

[0027] Figure 4 It is a cross-sectional view of the heat conducting ring of the present application;

[0028] Figure 5 It is a cross-sectional view of the insulating layer of the present application.

[0029] In the figure, 101, insulating layer; 10101, insulating sleeve; 10102, power connection interface; 10103, sealing ring; 102, electric fusion layer; 10201, electric fusion sleeve; 10202, heating wire; 10203, connecting ring; 10204, thermal conductive ring; 10205, fixing ring; 10206, memory metal sheet; 10207, power connection terminal; 103, thermal insulation layer; 10301, through hole. DETAILED DESCRIPTION

[0030] The present application is further described in detail below with reference to the accompanying drawings.

[0031] Embodiment 1

[0032] Reference Figure 1-5The electric fusion joint comprises an electric fusion layer 102, an insulating layer 103 is sheathed outside the electric fusion layer 102, an insulating layer 101 is sheathed outside the insulating layer 103, the insulating layer 101 is sheathed outside the electric fusion layer 102, the insulating layer 103 is sheathed outside the insulating layer 103, so that the insulating layer 103 can insulate the electric fusion layer 102 to avoid heat loss during the electric fusion process, and the insulating layer 101 provides insulation performance for the device to improve the safety of the device. The electric fusion layer 102 comprises an electric fusion sleeve 10201 and an electric heating wire 10202, a connecting ring 10203 is fixedly installed in the middle of the inner side of the electric fusion sleeve 10201, and the cross section of the connecting ring 10203 is a "Y"-shaped structure. The connecting ring 10203 is fixedly installed in the middle of the inner side of the electric fusion sleeve 10201, and the cross section of the connecting ring 10203 is a "Y"-shaped structure, which is convenient for the connecting ring 10203 to be sleeved on one end of the pipeline, and the gap between the pipelines can be blocked to prevent impurities from getting stuck in the gap between the pipelines and causing blockage. A heat conducting ring 10204 is provided in the middle of the electric fusion sleeve 10201, and the heat conducting ring 10204 is provided. A fixing ring 10205 is fixedly installed in the middle of the inner side of the heat ring 10204, and memory metal sheets 10206 are fixedly installed on both sides of the fixing ring 10205. The fixing ring 10205 is fixedly installed in the middle of the inner side of the heat conducting ring 10204, and memory metal sheets 10206 are fixedly installed on both sides of the fixing ring 10205. In the process of melting connection, the heat conducting ring 10204 absorbs heat and transfers it to the memory metal sheet 10206. The memory metal sheet 10206 is deformed by heat, and the heat conducting ring 10204 is set It is arranged inside the electric fusion sleeve 10201, and the fixing ring 10205 and the memory metal sheet 10206 are arranged inside the connecting ring 10203. The material of the connecting ring 10203 is high temperature resistant rubber. The fixing ring 10205 and the memory metal sheet 10206 are arranged inside the connecting ring 10203. The material of the connecting ring 10203 is high temperature resistant rubber, so that after the memory metal sheet 10206 is deformed by heat, the side of the connecting ring 10203 is tightly attached to the pipe, thereby filling and blocking the gap between the pipes.

[0033] Embodiment 2

[0034] Reference Figure 1-5The electric heating wire 10202 is in a spiral structure, and the electric heating wire 10202 is arranged inside the electric fusion sleeve 10201. The electric heating wire 10202 is in a spiral structure, and the electric heating wire 10202 is arranged inside the electric fusion sleeve 10201, so that the electric fusion layer 102 and the outer side of the pipe are melted and fused. The two ends of the electric heating wire 10202 are fixedly installed with power terminals 10207, and the power terminals 10207 are arranged outside the electric fusion sleeve 10201. It is arranged on the outside of the electric fusion sleeve 10201 to facilitate connection of an external power supply to power the heating wire 10202 for heating. The material of the thermal insulation layer 103 is a foamed thermal insulation ceramic material, and through holes 10301 are provided at both ends of one side of the thermal insulation layer 103. The thermal insulation layer 103 is made of a foamed thermal insulation ceramic material, which facilitates the heating and melting of the electric fusion layer 102 to prevent heat loss, and can maintain the external shape of the electric fusion layer 102 during the melting connection process, so that the electric fusion layer 102 is fixedly connected to the outside of the pipeline.

[0035] Embodiment 3

[0036] Reference Figure 1-5 The insulating layer 101 includes an insulating sleeve 10101, and power connection interfaces 10102 are fixedly installed at both ends of one side of the insulating sleeve 10101. The power connection interfaces 10102 are fixedly installed at both ends of one side of the insulating sleeve 10101, which is convenient for connection with an external power transmission line, so as to facilitate power supply for the device. The power connection terminal 10207 is inserted into the through hole 10301, and the power connection interface 10102 is electrically connected to the power connection terminal 10207. The power connection interface 10102 is electrically connected to the power connection terminal 10207, which is convenient for power supply for the work of the heating wire 10202. The insulating sleeve 10101 is fixedly installed at both ends. A sealing ring 10103 is provided, and the sealing ring 10103 is arranged on the outside of the electric melting layer 102 and the thermal insulation layer 103. The sealing ring 10103 is arranged on the outside of the electric melting layer 102 and the thermal insulation layer 103, so that the insulating layer 101 is sleeved on the outside of the electric melting layer 102 and the thermal insulation layer 103, thereby improving the safety performance of the device. The insulating sleeve 10101 and the sealing ring 10103 are both made of fluororubber. The insulating sleeve 10101 and the sealing ring 10103 are both made of fluororubber. Fluororubber has extremely strong corrosion resistance and mechanical properties, can effectively improve the service life of the device, and is convenient for improving the stability of the fixed connection of the pipeline.

[0037] Specifically, the two ends of one side of the insulating sleeve 10101 are fixedly installed with power connection interfaces 10102, which is convenient for connecting with external power transmission lines, so as to facilitate power supply for the operation of the device. The power connection interface 10102 is electrically connected with the power connection terminal 10207, so as to facilitate power supply for the operation of the heating wire 10202. The sealing ring 10103 is arranged outside the electric melting layer 102 and the thermal insulation layer 103, so that the insulating layer 101 is conveniently set outside the electric melting layer 102 and the thermal insulation layer 103, thereby improving the safety performance of the device. The material of 0101 and sealing ring 10103 are both fluororubber, which has extremely strong corrosion resistance and mechanical properties, can effectively improve the service life of the device, and is convenient for improving the stability of the fixed connection of the pipeline. The material of the thermal insulation layer 103 is a foamed thermal insulation ceramic material, which is convenient for heat preservation of the heating and melting of the electric melting layer 102 to avoid heat loss, and can maintain the external shape of the electric melting layer 102 during the melting connection process, so that the electric melting layer 102 is fixedly connected to the outside of the pipeline, and the electric heating wire 10202 is a spiral structure, and the electric heating wire 10202 is a spiral structure. The wire 10202 is arranged inside the electric melting sleeve 10201, so that the electric heating wire 10202 heats the electric melting layer 102 and the outer side of the pipe to melt and fuse. A connecting ring 10203 is fixedly installed in the middle of the inner side of the electric melting sleeve 10201. The cross section of the connecting ring 10203 is a "Y"-shaped structure, so that the connecting ring 10203 is conveniently sleeved on one end of the pipe, and the gap between the pipes can be blocked to prevent impurities from getting stuck in the gap between the pipes and causing blockage. A fixing ring 10205 is fixedly installed in the middle of the inner side of the heat conducting ring 10204. The fixing ring 102 05 Memory metal sheets 10206 are fixedly installed on both sides, so that the heat-conducting ring 10204 absorbs heat and transfers it to the memory metal sheet 10206 during the melting connection process. The memory metal sheet 10206 is deformed by heat and is arranged inside the connecting ring 10203 through the fixing ring 10205 and the memory metal sheet 10206. The material of the connecting ring 10203 is high-temperature resistant rubber, so that the side of the connecting ring 10203 is close to the pipe after the memory metal sheet 10206 is deformed by heat, thereby filling and blocking the gap between the pipes.

[0038] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. Electric fusion joint, characterized by: The invention comprises an electric melting layer (102), the electric melting layer (102) is provided with an insulation layer (103) on the outside, the insulation layer (103) is provided with an insulation layer (101) on the outside, the electric melting layer (102) comprises an electric melting sleeve (10201) and an electric heating wire (10202), a connecting ring (10203) is fixedly installed in the middle of the inner side of the electric melting sleeve (10201), the cross section of the connecting ring (10203) is a "Y"-shaped structure, and a conductive wire is provided in the middle of the electric melting sleeve (10201). A heat ring (10204), a fixed ring (10205) is fixedly installed in the middle of the inner side of the heat-conducting ring (10204), and memory metal sheets (10206) are fixedly installed on both sides of the fixed ring (10205). The heat-conducting ring (10204) is arranged inside the electric fusion sleeve (10201), and the fixed ring (10205) and the memory metal sheet (10206) are arranged inside the connecting ring (10203), and the material of the connecting ring (10203) is high-temperature resistant rubber.

2. The electric fusion joint according to claim 1, characterized in that: The heating wire (10202) has a spiral structure, and the heating wire (10202) is arranged inside the electric fusion sleeve (10201).

3. The electric fusion joint according to claim 2, characterized in that: Electrical connection terminals (10207) are fixedly mounted at both ends of the heating wire (10202), and the electrical connection terminals (10207) are arranged outside the electric fusion sleeve (10201).

4. The electric fusion joint according to claim 3, characterized in that: The material of the thermal insulation layer (103) is a foamed thermal insulation ceramic material, and through holes (10301) are provided at both ends of one side of the thermal insulation layer (103).

5. The electric fusion joint according to claim 4, characterized in that: The insulating layer (101) comprises an insulating sleeve (10101), and power connection interfaces (10102) are fixedly mounted at both ends of one side of the insulating sleeve (10101).

6. The electric fusion joint according to claim 5, characterized in that: The power connection terminal (10207) is inserted into the through hole (10301), and the power connection interface (10102) is electrically connected to the power connection terminal (10207).

7. The electric fusion joint according to claim 6, characterized in that: Sealing rings (10103) are fixedly mounted at both ends of the insulating sleeve (10101), and the sealing rings (10103) are arranged outside the electric melting layer (102) and the thermal insulation layer (103).

8. The electric fusion joint according to claim 7, characterized in that: The insulating sleeve (10101) and the sealing ring (10103) are both made of fluororubber.

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