Electric melting pipe joint

Abstract

The utility model discloses an electric melting pipe joint which comprises a pipe body, one end of the pipe body is provided with an external inserting port, the other end of the pipe body is provided with an internal socket, and an external connecting assembly is inserted into the external inserting port; the in-pipe socket plug is inserted into a pipeline to be connected; meanwhile, a hot melting module is arranged on the peripheral surface of the inner socket plug in a sleeving manner; rapid hot melting connection of the insertion connection area can be achieved through the hot melting assembly, and the connection efficiency of the pipeline can be improved; compared with a traditional gluing mode, melting and mixing of materials of the pipeline and the connecting device are achieved through hot melting connection, the connecting strength between the connecting device and the connecting pipeline is improved as much as possible, and water seepage of the connector is prevented advantageously; meanwhile, the inner inserting connector is inserted into the to-be-connected pipeline, so that the end part of the to-be-connected pipeline is separated from water flow, the water flow is prevented from being in contact with the end area from the source, the phenomena of fluid permeation, layering and the like of the to-be-connected pipeline are avoided, and the service life of the to-be-connected pipeline is prolonged.

Description

Technical Field

[0001] This application relates to the technical field of drainage equipment, and particularly to an electrofusion pipe joint. Background Art

[0002] Composite pipe is a new type of pipe. Compared with traditional steel pipes and pure plastic pipes, the strength, anti-corrosion performance and stability of composite pipes have been significantly improved. However, composite pipes have an obvious defect that the composite layer or bonding layer cannot be fully fused due to their production processes and different materials. During the process of transporting the medium, the medium is extremely likely to penetrate at the end of the pipe, thereby causing phenomena such as bulging and delamination, and the end sealing effect of the pipe is poor. Summary of the Utility Model

[0003] The main purpose of this application is to provide an electrofusion pipe joint, aiming to solve the defect of poor sealing effect in the prior art.

[0004] This application realizes the above purpose through the following technical solutions:

[0005] An electrofusion pipe joint includes a pipe body,

[0006] An external insertion interface, which is arranged at one end of the pipe body, and an external connection component is inserted into the external insertion interface;

[0007] An internal receiving plug, which is arranged at the other end of the pipe body, and the internal receiving plug is inserted into the pipe to be connected;

[0008] A hot melting module, which is sleeved on the outer peripheral surface of the internal receiving plug.

[0009] Optionally, the hot melting module includes an electric heating wire in a spiral structure, and the electric heating wire is embedded on the outer peripheral surface of the internal receiving plug.

[0010] Optionally, there are 2 - 3 groups of electric heating wires, and along the axial direction of the internal receiving plug, each group of electric heating wires is arranged at intervals in turn.

[0011] Optionally, the length of the internal receiving plug is not less than 5 cm, and the length of the area covered by the electric heating wire is 0.8 - 0.9 times the length of the internal receiving plug.

[0012] Optionally, a limiting surface is arranged at the bottom of the external insertion interface, and along the axial direction of the pipe body, the limiting surface abuts against the end face of the external connection component.

[0013] Optionally, an electric heating wire in a scroll line structure is embedded on the limiting surface.

[0014] Optionally, a thrust surface in a conical structure is further arranged in the external insertion interface.

[0015] Optionally, a guiding surface in a conical structure is provided on the inner wall of the free end of the inner socket plug, and the large-head end of the guiding surface is smoothly connected to the inner wall of the connecting pipe.

[0016] Optionally, a limiting ring is integrally provided on the outer peripheral surface of the pipe body, and the end surface of the limiting ring abuts against the end surface of the connecting pipe.

[0017] Optionally, a plugging groove adapted to the connecting pipe is provided on the limiting ring, and an electric heating wire in a scroll line structure is provided on the bottom surface of the plugging groove.

[0018] Compared with the prior art, the present application has the following beneficial effects:

[0019] The present application includes a pipe body, one end of the pipe body is provided with an external plug interface, the other end thereof is provided with an inner socket plug, and an external connection component is inserted into the external plug interface; the inner socket plug is inserted into a pipe to be connected; meanwhile, a hot melting module is also sleeved on the outer peripheral surface of the inner socket plug;

[0020] During use, the external connection component is inserted into the external plug interface, and at the same time the inner socket plug is inserted into the pipe to be connected. The outer wall of the inner socket plug is closely attached to the inner wall of the pipe to be connected. Then the whole connecting device is placed in an alternating electric field, and the alternating electric field will cause the hot melting component to generate heat, so as to heat the first joint and the second joint through the hot melting component, thereby realizing hot melting connection;

[0021] Compared with the prior art, the hot melting component can realize rapid hot melting connection of the plugging area, which is beneficial to improving the connection efficiency of the pipeline; at the same time, compared with the traditional gluing method, the hot melting connection realizes the melting and mixing of the materials of the pipeline and the connecting device, and improves the connection strength between the connecting device and the connecting pipeline as much as possible, which is beneficial to preventing the occurrence of joint water seepage;

[0022] Secondly, in the technical solution of the present application, the inner plug is inserted into the pipe to be connected. Therefore, the end part of the pipe to be connected where leakage and delamination are most likely to occur will be opposite to the pipe joint, that is, the end of the connecting pipe is separated from the water flow through the above connection method, improving the edge sealing effect, blocking the contact between the water flow and the end area from the source, and then avoiding phenomena such as fluid infiltration and delamination of the pipe to be connected, and prolonging the service life of the pipe to be connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural diagram of an electrofusion pipe joint provided in Embodiment 1 of the present application;

[0024] Figure 2 It is an exploded view of an electrofusion pipe joint provided in Embodiment 1 of the present application;

[0025] Figure 3Schematic diagram of the assembly of an electrofusion pipe joint provided for Embodiment 1 of the present application;

[0026] Figure 4 Cross-sectional view of an electrofusion pipe joint provided for Embodiment 1 of the present application;

[0027] Reference numerals: 1 - pipe body, 2 - external insertion interface, 3 - internal receiving plug, 4 - electric heating wire, 5 - limiting surface, 6 - thrust surface, 7 - guiding surface, 8 - limiting ring, 9 - insertion slot.

[0028] The realization of the purpose, functional features and advantages of the present application will be further described with reference to the accompanying drawings in combination with the embodiments. Specific embodiments

[0029] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0030] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0031] In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0032] In addition, if the descriptions such as "first" and "second" are involved in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel scenarios. Taking "A and / or B" as an example, it includes Scenario A, or Scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions 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 the present utility model.

[0033] Embodiment 1

[0034] Referring to Figures 1 to 4 , as an optional embodiment of the present application, this embodiment discloses an electrofusion pipe joint, including a pipe body 1, an external insertion interface 2 is provided at one end of the pipe body 1, and an internal receiving plug 3 is provided at the other end thereof;

[0035] Wherein when the internal receiving plug 3 is installed, it is inserted into the connecting pipe, and its outer wall is completely attached to the inner wall of the connecting pipe. At the same time, a guiding surface 7 is also provided at the inlet end of the internal receiving plug 3, the guiding surface 7 is arranged in a conical structure, and the large end of the guiding surface 7 is smoothly transitioned to the inner wall of the connecting pipe;

[0036] Since the internal receiving plug 3 of the present application will be inserted into the connecting pipe, and the pipe wall of the internal receiving plug 3 has a certain thickness, the above-mentioned guiding surface 7 can form a conical transition surface between the inner wall of the connecting pipe and the inner wall of the internal receiving plug 3. On the one hand, it can make the liquid flow more smoothly, and on the other hand, it can avoid the violent collision of the liquid with the end face of the inserted pipe.

[0037] It should be noted that the length of the internal insertion joint is not less than 5 cm;

[0038] The inner wall of the external insertion interface 2 is coaxially arranged with the inner wall of the internal receiving plug 3, and the outer diameter of the end of the external insertion interface 2 connected to the inner wall of the internal receiving plug 3 is larger than the inner diameter of the internal receiving plug 3, so as to form a limiting surface 5 at the bottom of the external insertion interface 2. After installation, along the axial direction of the pipe body 1, the limiting surface 5 abuts against the end face of the external connection component, thereby realizing the rapid and accurate assembly of the external connection component through the limiting surface 5 and improving the assembly efficiency.

[0039] The external plug interface 2 is also provided with a thrust surface 6 in a conical structure. One end of the thrust surface 6 is connected to the limiting surface 5, and the other end is connected to the cylindrical surface of the external plug interface 2;

[0040] A limiting ring 8 is also arranged on the outer peripheral surface of the pipe body 1. The limiting ring 8 is integrally connected to the pipe body 1 to improve the connection strength. After being connected to the connecting pipe, the end face of the limiting ring 8 abuts against the end face of the connecting pipe. The outer diameter of the limiting ring 8 is the same as the outer diameter of the connecting pipe to ensure the flatness of the pipe after connection;

[0041] At the same time, a plugging groove 9 is also arranged on the end face of the limiting ring 8. After installation, the end face of the connecting pipe is inserted into the plugging groove 9;

[0042] Through the above structural settings, on the one hand, the insertion depth of the inner socket 3 can be controlled through the limiting ring 8 to achieve rapid and accurate assembly of the pipeline; on the other hand, since the inner socket 3 is inserted into the connecting pipe and its outer wall fits with the outer wall of the connecting pipe, the end part of the connecting pipe where leakage and delamination are most likely to occur will be completely isolated from the water flow, blocking the contact between the water flow and the end area from the source, thereby avoiding phenomena such as fluid infiltration and delamination of the pipeline and extending the service life of the pipeline;

[0043] Secondly, through the plugging groove 9, the end of the connecting pipe can also be placed in a relatively closed area, improving the protection effect on the end and preventing delamination due to the influence of the external environment during use; at the same time, due to the closure of the end by the plugging groove 9, the edge sealing requirements of the end are reduced.

[0044] The electrofusion pipe joint further includes a hot melting module. The hot melting module includes an electric heating wire 4. The electric heating wire 4 is arranged in a spiral structure. The electric heating wire 4 is embedded in the inner socket 3, and the length of the area covered by the electric heating wire 4 is 0.8 - 0.9 times the length of the inner socket 3; at the same time, electric heating wires 4 are arranged on both the limiting surface 5 and the bottom surface of the plugging groove 9. The electric heating wires 4 arranged at the above positions are arranged in a scroll line structure to meet different installation position requirements;

[0045] During use, the entire joint and the connecting pipe are placed in an alternating current electric field, and it will be heated due to eddy current, thereby achieving hot melting connection, maximizing the connection strength and avoiding water leakage at the joint;

[0046] At the same time, by arranging the electric heating wire 4 in the limiting groove, the edge sealing operation of the end of the connecting pipe can be synchronously realized, improving the edge sealing quality

[0047] Furthermore, the electric heating wires 4 of the hot-melt module can be set in 2 - 3 groups. Along the axial direction of the inner bearing plug 3, each group of electric heating wires 4 is arranged at intervals in sequence. After the arrangement, the electric heating wires 4 must completely cover the area on the inner plug for setting the electric heating wires 4 to ensure the connection strength;

[0048] Adopting the above arrangement method, on the one hand, it can reduce the usage amount of the electric heating wires 4; on the other hand, during the hot-melt process, the heating electricity will be limited to a limited partial area, and the area between two adjacent electric heating wires 4 will not be heated or the melting degree of the joint surface is limited, which is beneficial to avoiding excessive hot melting of the pipe body 1 and ensuring the structural strength of the pipe body 1.

[0049] Compared with the prior art, the hot-melt assembly can achieve rapid hot-melt connection of the plug-in area, which is beneficial to improving the connection efficiency of the pipeline; at the same time, compared with the traditional gluing method, the hot-melt connection realizes the melting and mixing of the materials of the pipeline and the connection device, and improves the connection strength between the connection device and the connection pipeline as much as possible, which is beneficial to preventing the occurrence of joint water seepage;

[0050] Secondly, in the technical solution of the present application, the inner plug is inserted into the pipeline to be connected. Therefore, the end part of the pipeline to be connected, which is most likely to leak and delaminate, will be directly opposite to the pipe joint. That is, through the above connection method, the end of the connection pipeline is separated from the water flow, improving the edge sealing effect, blocking the contact between the water flow and the end area from the source, and then avoiding phenomena such as fluid infiltration and delamination of the pipeline to be connected, and prolonging the service life of the pipeline to be connected.

[0051] The above are only the preferred embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present application.

Claims

1. An electric fusion pipe joint, characterized in that: Includes tube body (1), An external plug-in interface (2), the external plug-in interface (2) being arranged at one end of the tube body (1), and the external connection component being inserted into the external plug-in interface (2); An inner bell plug (3), the inner bell plug (3) being arranged at the other end of the pipe body (1), and the inner bell plug (3) being inserted into the pipe to be connected; A hot melt module is sleeved on the outer peripheral surface of the inner socket (3).

2. An electric fusion pipe joint according to claim 1, characterized in that: The hot melt module comprises an electric heating wire (4) with a spiral structure, and the electric heating wire (4) is embedded in the outer peripheral surface of the inner socket plug (3).

3. An electric fusion pipe joint according to claim 2, characterized in that: The electric heating wires (4) are provided in 2-3 groups, and the groups of electric heating wires (4) are arranged in sequence and at intervals along the axial direction of the inner socket plug (3).

4. An electric fusion pipe joint according to claim 3, characterized in that: The length of the inner socket plug (3) is not less than 5 cm, and the length of the area covered by the electric heating wire (4) is 0.8-0.9 times the length of the inner socket plug (3).

5. The electric fusion pipe joint according to claim 1, characterized in that: A limiting surface (5) is provided at the bottom of the external plug-in interface (2), and along the axial direction of the tube body (1), the limiting surface (5) abuts against the end surface of the external connection component.

6. An electric fusion pipe joint according to claim 5, characterized in that: An electric heating wire (4) having a vortex wire structure is embedded on the limiting surface (5).

7. The electrofusion pipe joint according to claim 1, characterized in that: A thrust surface (6) with a conical structure is also provided in the external plug-in interface (2).

8. The electrofusion pipe joint according to claim 1, characterized in that: A guide surface (7) with a conical structure is arranged on the inner wall of the free end of the inner socket plug (3), and the large end of the guide surface (7) is smoothly connected to the inner wall of the connecting pipe.

9. The electrofusion pipe joint according to claim 1, characterized in that: A limiting ring (8) is also integrally provided on the outer peripheral surface of the pipe body (1), and the end surface of the limiting ring (8) abuts against the end surface of the connecting pipe.

10. An electric fusion pipe joint according to claim 9, characterized in that: The limiting ring (8) is provided with a plug-in groove (9) adapted to the connecting pipe, and the bottom surface of the plug-in groove (9) is provided with an electric heating wire (4) in a vortex wire structure.

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