Electric melting pipe fitting

Abstract

The utility model discloses an electric melting pipe fitting which comprises a pipe fitting main body, a melting layer, a heat conduction mechanism, a mounting ring and a blade strip, and a through hole is formed in the axial end of the pipe fitting main body; the melting layer is fixedly mounted on the inner wall of the pipe fitting main body; the heat conduction mechanism is arranged in the pipe fitting body and used for conducting heat to the melting layer. The mounting rings are fixedly mounted at the two axial ends of the pipe fitting main body; the blade strip is fixedly mounted on the radial inner wall of the mounting ring; the multiple blade strips are annularly and uniformly arranged in the axial direction of the mounting ring, and the cutting edge parts of the multiple blade strips face the outer side of the pipe fitting main body; the heat conduction mechanism comprises a resistance wire and a binding post, and the resistance wire is fixedly installed on the inner wall of the pipe fitting body and attached to the outer wall of the melting layer. The two binding posts are connected with the power input end and the power output end of the resistance wire correspondingly and extend out of the pipe fitting body. Through the cooperation of the structure, the melted melting layer is in contact with the outer wall of the pipe fitting to be connected with the scratches, the melting strength can be effectively enhanced, and the connecting quality is improved.

Description

Technical Field

[0001] The present application relates to the technical field of electric fusion pipe fittings, and in particular to an electric fusion pipe fitting. Background Art

[0002] Electric fusion pipe fittings refer to a type of plastic pipe fittings that can be connected by melting through the temperature generated by electric current. The uniqueness of electric fusion pipe fittings lies in their connection method. The connecting part is designed with a special electric fusion interface, which can heat and fuse the plastic materials at both ends of the pipe fittings to be connected, so that they are fused into one at high temperature, thereby achieving a firm pipeline connection.

[0003] Before installation, it is necessary to ensure that both ends of the pipes to be connected are cut flat and there is no dirt or impurities on the ends to ensure the quality and sealing of the fusion connection. Then use a special electric fusion machine to connect the resistance wire inside the pipes to be connected, and heat the electric fusion interface at both ends of the pipes to be connected. When the plastic material can reach the fusion temperature, the two pipes to be connected are fused together. During the cooling process, the plastic will re-solidify to form a strong and sealed connection.

[0004] In the prior art, the outer wall of the pipe to be connected generally adopts a smooth surface design. Although this design is simple and beautiful, during the electric fusion pipe connection process, since the outer wall of the pipe to be connected is a smooth surface, the contact area is relatively small, resulting in uneven heat transfer, low welding strength, and affecting the connection quality. Utility Model Content

[0005] The main purpose of the present application is to provide an electric fusion pipe fitting, aiming to solve the technical problem of low welding strength of smooth surfaces.

[0006] To achieve the above-mentioned purpose, the present application provides an electric fusion pipe fitting, comprising: a pipe fitting body, a molten layer, a heat-conducting mechanism, a mounting ring and a blade strip, wherein the axial end of the pipe fitting body has a through hole, and the pipe fitting to be connected is mounted at the through hole; the molten layer is fixedly mounted on the inner wall of the pipe fitting body; the heat-conducting mechanism is arranged in the pipe fitting body for conducting heat to the molten layer; the mounting ring is fixedly mounted on the two axial ends of the pipe fitting body; the blade strip is fixedly mounted on the radial inner wall of the mounting ring; a plurality of blade strips are evenly arranged in a ring shape along the axial direction of the mounting ring, and the cutting edges of the plurality of blade strips face the outside of the pipe fitting body.

[0007] Optionally, the heat conduction mechanism includes: a resistance wire and a terminal, wherein the resistance wire is fixedly mounted on the inner wall of the pipe body and fits with the outer wall of the molten layer; two terminal posts are provided, which are respectively connected to the power input end and the output end of the resistance wire and extend to the outside of the pipe body; the resistance wire is evenly distributed in a spiral shape.

[0008] Optionally, an elastic plate is fixedly installed on the outer wall of the pipe body, and an extrusion block is fixedly installed on the inner wall of the elastic plate; multiple elastic plates are provided, and the multiple elastic plates are evenly distributed along the outer wall of the terminal; the outer wall of the elastic plate is sleeved with a rubber sleeve.

[0009] Optionally, the heat conduction mechanism further includes: an induction block and an implantation ring, wherein the induction block is fixedly mounted on the inner wall of the pipe body, and the other end thereof passes through the molten layer; the implantation ring is fixedly mounted on the outer wall of the induction block, and has the same texture as the induction block.

[0010] Optionally, a plurality of the sensing blocks are provided, and the plurality of the sensing blocks are evenly distributed in a ring shape along the axial direction of the pipe body; and a plurality of the implant rings are evenly provided along the outer wall of the sensing block.

[0011] Optionally, a conveying cavity is opened inside the pipe body, and the outer wall of the molten layer extends into the conveying cavity. The conveying cavity is distributed in a spiral shape and communicated with the outer wall of the pipe body.

[0012] Optionally, a reinforcing plate is fixedly mounted on the outer wall of the pipe body, and a plurality of the reinforcing plates are provided, and the plurality of the reinforcing plates are evenly distributed along the outer wall of the pipe body.

[0013] Optionally, a limiting clamp is fixedly mounted on the outer wall of the reinforcing plate, a groove is formed at one end of the limiting clamp away from the reinforcing plate, and the limiting clamp is made of elastic material.

[0014] Optionally, a closing plate is provided on the side wall of the mounting ring, a connecting plate is fixedly mounted on the side wall of the closing plate, and the closing plate is plugged into the mounting ring via the connecting plate.

[0015] Optionally, a support plate is fixedly mounted on the inner wall of the pipe body, and a notch is provided on the outer wall of the support plate for the pipe to be connected to be inserted.

[0016] An electric fusion pipe fitting proposed in an embodiment of the present application is characterized in that a mounting ring is provided, and blade strips are provided inside the mounting ring. A plurality of blade strips are evenly provided in a ring shape along the axial direction of the mounting ring, and the cutting edges of the plurality of blade strips face the outside of the pipe fitting body. At the same time, a fusion layer is provided inside the pipe fitting body. When connecting the pipe fitting to be connected and the pipe fitting body, the pipe fitting to be connected is inserted along the axial direction of the pipe fitting body. During the insertion process, the blade strip scratches the outer wall of the pipe fitting to be connected to form a scratch until the scratch position fits with the fusion layer. At this time, the fusion layer is melted so that the fusion layer contacts the outer wall of the pipe fitting to be connected having the scratch. Compared with welding the fusion layer to the smooth pipe fitting to be connected, the fusion strength can be effectively enhanced and the connection quality can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the overall structure of the electric fusion pipe provided in an embodiment of the present application when heated by resistance;

[0018] Figure 2 A schematic diagram of the overall structure of the electric fusion pipe provided in an embodiment of the present application when heated by electric induction;

[0019] Figure 3 This is a schematic diagram of the installation of the sensor block in the embodiment of the present application;

[0020] Figure 4 This is a schematic diagram of the structure of the implant ring in the embodiment of the present application;

[0021] Figure 5 This is a schematic diagram of the structure of the resistance wire in the embodiment of the present application;

[0022] Figure 6 for Figure 5 Enlarged view of point A in .

[0023] Figure numerals: 1. pipe body; 2. mounting ring; 3. closing plate; 4. limiting clamp; 5. reinforcing plate; 6. conveying cavity; 7. melting layer; 8. blade strip; 9. connecting plate; 10. supporting plate; 11. induction block; 12. implantation ring; 13. resistance wire; 14. elastic plate; 15. extrusion block; 16. rubber sleeve; 17. terminal.

[0024] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0026] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0029] The present application is described in detail below with reference to the accompanying drawings and embodiments.

[0030] Figure 1 This is a schematic diagram of the overall structure of the electric fusion pipe provided in an embodiment of the present application when heated by resistance. Figure 2 A schematic diagram of the overall structure of the electric fusion pipe provided in an embodiment of the present application when heated by electric induction. Figure 3 This is a schematic diagram of the installation of the sensor block in the embodiment of the present application. Figure 4 This is a schematic diagram of the structure of the implant ring in the embodiment of the present application. Figure 5 This is a schematic diagram of the structure of the resistance wire in the embodiment of the present application. Figure 6 for Figure 5 Enlarged view of point A in .

[0031] The present application embodiment provides an electric fusion pipe fitting, such as Figure 1 , Figure 2 and Figure 3As shown, the electric fusion pipe fitting may include a pipe fitting body 1, a molten layer 7, a heat conducting mechanism, a mounting ring 2 and a blade strip 8, wherein the pipe fitting body 1 has a through hole at an axial end, and the pipe fitting to be connected is mounted at the through hole; the molten layer 7 is fixedly mounted on the inner wall of the pipe fitting body 1; the heat conducting mechanism is arranged in the pipe fitting body 1, and is used to conduct heat to the molten layer 7; the mounting ring 2 is fixedly mounted on the two axial ends of the pipe fitting body 1; the blade strip 8 is fixedly mounted on the radial inner wall of the mounting ring 2; a plurality of blade strips 8 are evenly arranged in a ring shape along the axial direction of the mounting ring 2, and the cutting edges of the plurality of blade strips 8 face the outside of the pipe fitting body 1.

[0032] Specifically, the pipe body 1 may be made of PE material, and the axial end of the pipe body 1 has a through hole to facilitate the insertion of the pipe to be connected, in preparation for the fusion connection.

[0033] The molten layer 7 is fixedly installed on the inner wall of the pipe body 1. The molten layer 7 can be made of common welding plastic materials (for example, polyethylene, polypropylene, polyvinyl chloride, polystyrene, polyethylene terephthalate, etc.). The inner wall of the molten layer 7 is flush with the inner wall of the pipe body 1. After the pipe to be connected is inserted into the pipe body 1, the outer wall of the pipe to be connected is fitted with the inner wall of the molten layer 7.

[0034] The heat-conducting mechanism is arranged inside the pipe body 1, and is used to conduct heat to the molten layer 7. The heat energy can be transmitted to the molten layer 7, so that the molten layer 7 is melted by the heat, and then the molten layer 7 that is melted by the heat contacts the pipe to be connected inside the pipe body 1 and is cooled until the molten layer 7 solidifies, thereby realizing the connection between the pipe body 1 and the pipe to be connected.

[0035] The mounting ring 2 is fixedly mounted on the two axial ends of the pipe body 1, and the blade strip 8 is fixedly mounted on the radial inner wall of the mounting ring 2. The cutting edge of the blade strip 8 may be made of artificial diamond. When the pipe to be connected is inserted into the pipe body 1 through the mounting ring 2, the blade strip 8 scratches the outer wall of the pipe to be connected, thereby forming scratches on the outer wall of the pipe to be connected, thereby destroying the smooth surface of the outer wall of the pipe to be connected, increasing the roughness of the outer wall of the pipe to be connected, thereby increasing the welding strength and improving the connection quality.

[0036] In order to form as many scratches as possible on the outer wall of the pipe to be connected, a plurality of blade strips 8 are evenly arranged in an annular shape along the axial direction of the mounting ring 2, so that when the pipe to be connected is inserted, a plurality of scratches are simultaneously formed on the outer wall of the pipe to be connected.

[0037] The cutting edges of the plurality of blades 8 face the outside of the pipe body 1 so that the cutting edges can break the outer wall of the pipe to be connected during the insertion of the pipe to be connected.

[0038] When connecting the pipe to be connected and the pipe body 1, the pipe to be connected is inserted along the axial direction of the pipe body 1. During the insertion process, the blade 8 scratches the outer wall of the pipe to be connected to form a scratch until the scratch position fits with the molten layer 7. At this time, the molten layer 7 is melted so that the molten molten layer 7 contacts the outer wall of the pipe to be connected with the scratch. Compared with welding the molten molten layer 7 to the smooth pipe to be connected, the strength of the connection can be effectively improved.

[0039] like Figure 1 , 5 As shown in FIG. 6 , when the molten layer 7 is melted by using a resistance heating method:

[0040] In an exemplary embodiment, the heat conduction mechanism may include a resistance wire 13 and a terminal 17, wherein the resistance wire 13 is fixedly mounted on the inner wall of the pipe body 1 and is in contact with the outer wall of the molten layer 7; two terminal 17 are provided, which are respectively connected to the power input end and the output end of the resistance wire 13 and extend to the outside of the pipe body 1; the resistance wire 13 is evenly distributed in a spiral shape.

[0041] Specifically, the resistance wire 13 can be a common resistance heating wire, which generates heat energy by forming an electric potential difference at both ends of the resistance wire 13. It is fixedly installed on the inner wall of the pipe body 1 and fits with the outer wall of the molten layer 7. The resistance wire 13 is energized to increase the temperature, thereby melting the molten layer 7 to facilitate the connection of the pipes to be connected.

[0042] There are two terminals 17, which are respectively connected to the power input end and the output end of the resistance wire 13, and extend to the outside of the pipe body 1. An external power source is connected to the terminals 17 to provide electrical energy to the resistance wire 13, and the electrical energy is converted into heat energy through the resistance wire 13.

[0043] In order to facilitate uniform heating of the molten layer 7, the resistance wire 13 is evenly distributed in a spiral shape and evenly distributed on the outer wall of the molten layer 7. After the resistance wire 13 is energized, the molten layer 7 is evenly heated, thereby improving the connection quality.

[0044] In one embodiment, an elastic plate 14 is fixedly installed on the outer wall of the pipe body 1, an extrusion block 15 is fixedly installed on the inner wall of the elastic plate 14, a plurality of elastic plates 14 are provided, and the plurality of elastic plates 14 are evenly distributed along the outer wall of the terminal 17, and a rubber sleeve 16 is sleeved on the outer wall of the elastic plate 14.

[0045] Specifically, before use, the terminal post 17 is wrapped with a rubber sleeve 16 to provide protection for the terminal post 17 .

[0046] When in use, the rubber sleeve 16 is pulled out, and then the wire of the external power supply is inserted into the elastic plate 14. The elastic force of the elastic plate 14 pushes the squeezing block 15 to maintain the connection between the external power supply wire and the terminal 17, so as to provide electrical energy to the resistance wire 13.

[0047] By arranging the resistance wire 13 inside the pipe body 1 and extending both ends of the resistance wire 13 to the outer wall of the pipe body 1 , the molten layer 7 can be heated when both ends of the pipe body 1 need to be connected to the pipe to be connected.

[0048] like Figure 2 , 3 As shown in FIG. 4 , when the molten layer 7 is melted by using electric induction heating:

[0049] In an exemplary embodiment, the heat conduction mechanism may also include a sensing block 11 and an implant ring 12, wherein the sensing block 11 is fixedly mounted on the inner wall of the pipe body 1, and the other end thereof penetrates the molten layer 7; the implant ring 12 is fixedly mounted on the outer wall of the sensing block 11, and has the same texture as the sensing block 11.

[0050] Specifically, the induction block 11 is fixedly mounted on the inner wall of the pipe body 1, and the other end passes through the molten layer 7. The induction block 11 can be a common metal that can be heated by electric induction. After the pipe to be connected is inserted into the pipe body 1, an electric induction heating coil (not shown) is sleeved on the outside of the pipe body 1, and its position corresponds to the induction block 11. At this time, the induction block 11 is heated by electric induction, and the outer wall of the internally inserted pipe to be connected and the molten layer 7 are heated and melted at the same time. The heating is stopped until the molten part is welded, thereby realizing the connection between the pipe to be connected and the pipe body 1.

[0051] In order to facilitate uniform heating, the implant ring 12 is fixedly installed on the outer wall of the induction block 11 and has the same texture as the induction block 11, thereby increasing the contact area with the molten layer 7. Therefore, during the heating process, the molten layer 7 and the outer wall of the pipe to be connected are uniformly heated, thereby improving the welding quality.

[0052] Furthermore, a plurality of sensing blocks 11 are provided, and the plurality of sensing blocks 11 are evenly distributed in a ring shape along the axial direction of the pipe body 1 ; a plurality of implant rings 12 are evenly provided along the outer wall of the sensing block 11 .

[0053] Specifically, in order to further increase the heating area of ​​the molten layer 7 and the outer wall of the pipe to be connected, a plurality of induction blocks 11 are provided, and the plurality of induction blocks 11 are evenly distributed in a ring shape along the axial direction of the pipe body 1, and a plurality of implantation rings 12 are evenly provided along the outer wall of the induction block 11, thereby further increasing the heating area of ​​the molten layer 7 and the outer wall of the pipe to be connected.

[0054] The method of electric induction heating is suitable for connecting one end of the pipe body 1 to the pipe to be connected. Compared with the method of using resistance heating, the material cost of the induction block 11 is lower than that of the resistance wire 13 during manufacturing, and electric induction heating can improve energy utilization compared with resistance heating.

[0055] In one embodiment, a conveying cavity 6 is opened inside the pipe body 1 , and the outer wall of the molten layer 7 extends into the conveying cavity 6 . The conveying cavity 6 is distributed in a spiral shape and communicates with the outer wall of the pipe body 1 .

[0056] Specifically, a conveying cavity 6 is opened inside the pipe body 1, and the outer wall of the molten layer 7 extends into the conveying cavity 6. When the heating is completed, a coolant is injected into the conveying cavity 6, and the coolant contacts the molten layer 7, thereby improving the solidification efficiency of the molten layer 7, thereby saving the time for connecting the pipes to be connected.

[0057] The conveying cavities 6 are distributed in a spiral shape and are connected to the outer wall of the pipe body 1. When the coolant is passed into the evenly arranged conveying cavities 6, they can be in contact with the molten layer 7 as evenly as possible, thereby uniformly cooling the temperature and preventing the stress during solidification from affecting the connection strength.

[0058] In one embodiment, a reinforcing plate 5 is fixedly mounted on the outer wall of the pipe body 1 , and a plurality of reinforcing plates 5 are provided, and the plurality of reinforcing plates 5 are evenly distributed along the outer wall of the pipe body 1 .

[0059] Specifically, the setting of the conveying cavity 6 affects the structural strength of the pipe body 1. In order to improve the structural strength of the pipe body 1, a reinforcing plate 5 is fixedly installed on the outer wall of the pipe body 1. A plurality of reinforcing plates 5 are provided, and the plurality of reinforcing plates 5 are evenly distributed along the outer wall of the pipe body 1, thereby compensating for the influence of the conveying cavity 6 on the structural strength of the pipe body 1.

[0060] Furthermore, a limit clamp 4 is fixedly installed on the outer wall of the reinforcing plate 5. The limit clamp 4 is arranged at the input port of the conveying cavity 6. A groove is provided at one end of the limit clamp 4 away from the reinforcing plate 5, and the limit clamp 4 is made of elastic material.

[0061] Specifically, the external cooling water source is connected to the input end of the delivery cavity 6 through a conduit, and the conduit is clamped by the limiting clamp 4, so as to maintain the state of being connected to the input port of the delivery cavity 6, thereby reducing the difficulty of operation. It should be noted that the conduit passes through the groove of the limiting clamp 4, so that the limiting clamp 4 clamps the conduit.

[0062] In one embodiment, a closing plate 3 is provided on the side wall of the mounting ring 2 , a connecting plate 9 is fixedly mounted on the side wall of the closing plate 3 , and the closing plate 3 is plugged into the mounting ring 2 via the connecting plate 9 .

[0063] There are multiple connecting plates 9 made of elastic material. The connecting plates 9 are plugged into the mounting ring 2 to achieve the closure of the mounting ring 2 by the closing plate 3, thereby preventing the staff from accidentally touching the blade 8 and getting scratched, thereby improving the safety of use. It should be noted that when the connecting pipe is inserted, the closing plate 3 needs to be pulled out first.

[0064] In one embodiment, a support plate 10 is fixedly mounted on the inner wall of the pipe body 1, and a notch (not marked in the figure) is provided on the outer wall of the support plate 10 for inserting the pipe to be connected.

[0065] The support plate 10 limits the increasing depth of the pipe to be connected inserted into the pipe body 1, preventing the pipe to be connected from penetrating the pipe body 1, thereby reducing the difficulty of operation.

[0066] An electric fusion pipe fitting proposed in an embodiment of the present application is provided with a mounting ring 2, and a blade strip 8 is provided inside the mounting ring 2. A plurality of blade strips 8 are evenly provided in a ring shape along the axial direction of the mounting ring 2, and the cutting edges of the plurality of blade strips 8 face the outside of the pipe fitting body 1. At the same time, a fusion layer 7 is provided inside the pipe fitting body 1. When connecting the pipe fitting to be connected and the pipe fitting body 1, the pipe fitting to be connected is inserted along the axial direction of the pipe fitting body 1. During the insertion process, the blade strip 8 scratches the outer wall of the pipe fitting to be connected to form a scratch until the scratch position fits with the fusion layer 7. At this time, the fusion layer 7 is melted so that the fusion layer 7 contacts the outer wall of the pipe fitting to be connected having the scratch. Compared with welding the fusion layer 7 to the smooth pipe fitting to be connected, the fusion strength can be effectively enhanced and the connection quality can be improved.

[0067] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An electric fusion pipe fitting, characterized in that: include: A pipe fitting body (1) has a through hole at an axial end, and the pipe fitting to be connected is installed at the through hole; A molten layer (7) is fixedly mounted on the inner wall of the pipe body (1); A heat conduction mechanism, arranged in the pipe body (1) and used for conducting heat to the molten layer (7); A mounting ring (2) fixedly mounted on two axial ends of the pipe body (1); A blade strip (8) is fixedly mounted on the radial inner wall of the mounting ring (2); a plurality of blade strips (8) are evenly arranged in an annular shape along the axial direction of the mounting ring (2), and the cutting edges of the plurality of blade strips (8) face the outside of the pipe body (1).

2. The electric fusion pipe fitting according to claim 1, characterized in that: The heat conduction mechanism comprises: A resistance wire (13) is fixedly mounted on the inner wall of the pipe body (1) and is in contact with the outer wall of the molten layer (7); Two binding posts (17) are provided, respectively connected to the power input end and the output end of the resistance wire (13), and extending to the outside of the pipe body (1); The resistance wires (13) are evenly distributed in a spiral shape.

3. The electric fusion pipe fitting according to claim 2, characterized in that: An elastic plate (14) is fixedly mounted on the outer wall of the pipe body (1), and an extrusion block (15) is fixedly mounted on the inner wall of the elastic plate (14); A plurality of the elastic plates (14) are provided, and the plurality of the elastic plates (14) are evenly distributed along the outer wall of the terminal (17); The outer wall of the elastic plate (14) is sleeved with a rubber sleeve (16).

4. The electric fusion pipe fitting according to claim 1, characterized in that: The heat conduction mechanism also includes: An induction block (11) is fixedly mounted on the inner wall of the pipe body (1), and the other end of the induction block passes through the molten layer (7); The implant ring (12) is fixedly mounted on the outer wall of the sensing block (11) and has the same material as the sensing block (11).

5. The electric fusion pipe fitting according to claim 4, characterized in that: A plurality of the induction blocks (11) are provided, and the plurality of the induction blocks (11) are evenly distributed in a ring shape along the axial direction of the pipe body (1); A plurality of implant rings (12) are evenly arranged along the outer wall of the sensing block (11).

6. The electrofusion pipe fitting according to claim 1, characterized in that: A conveying cavity (6) is provided inside the pipe body (1), and the outer wall of the molten layer (7) extends into the conveying cavity (6). The conveying cavity (6) is distributed in a spiral shape and is connected to the outer wall of the pipe body (1).

7. The electric fusion pipe fitting according to claim 6, characterized in that: A reinforcing plate (5) is fixedly mounted on the outer wall of the pipe body (1), and a plurality of the reinforcing plates (5) are provided, and the plurality of the reinforcing plates (5) are evenly distributed along the outer wall of the pipe body (1).

8. An electric fusion pipe fitting according to claim 7, characterized in that: A limiting clamp plate (4) is fixedly mounted on the outer wall of the reinforcing plate (5); a groove is provided at one end of the limiting clamp plate (4) away from the reinforcing plate (5); and the limiting clamp plate (4) is made of elastic material.

9. The electrofusion pipe fitting according to claim 1, characterized in that: The side wall of the mounting ring (2) is provided with a closing plate (3), the side wall of the closing plate (3) is fixedly provided with a connecting plate (9), and the closing plate (3) is plugged into the mounting ring (2) via the connecting plate (9).

10. The electrofusion pipe fitting according to claim 1, characterized in that: A support plate (10) is fixedly mounted on the inner wall of the pipe body (1), and a notch is provided on the outer wall of the support plate (10) for the pipe to be connected to be inserted.

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