CN216768724U

CN216768724U - Electric smelting pipe fitting structure

Info

Publication number: CN216768724U
Application number: CN202220278309.7U
Authority: CN
Inventors: 蒋旭东
Original assignee: Yuyao Dongpu Pipe Industry Co ltd
Current assignee: Yuyao Dongpu Pipe Industry Co ltd
Priority date: 2022-02-08
Filing date: 2022-02-08
Publication date: 2022-06-17
Anticipated expiration: 2032-02-08

Abstract

The utility model discloses an electric melting pipe fitting structure which comprises a pipe fitting body, wherein two copper wire heating coils are arranged on the inner wall of the pipe fitting body, two rubber sealing rings are arranged on the inner wall of the pipe fitting body, an inclined surface is formed on the side wall, far away from the other rubber sealing ring, of each rubber sealing ring, the inclined surface is obliquely arranged towards the copper wire heating coil close to the inclined surface, the angle formed by the inclined surface and the inner wall of the pipe fitting body is a, the angle a is an obtuse angle, annular grooves are formed in the side walls, close to the two rubber sealing rings, of the two rubber sealing rings, and the annular grooves are obliquely arranged towards the inclined surfaces. The utility model has the advantages of allowing welding with water and having better welding effect.

Description

Electric smelting pipe fitting structure

Technical Field

The utility model relates to the technical field of electric melting pipe fittings, in particular to an electric melting pipe fitting structure.

Background

Electrofusion pipe fittings are plastic pipe fittings that can be fused to join by the temperature generated by an electric current. At present, electric smelting pipe fitting wide application in the pressure pipeline of a plurality of fields such as gas, feedwater, chemical industry lay, and electric smelting pipe fitting distributes at the body inner wall has the resistance wire, and after circular telegram, the resistance wire generates heat and will be in partial plastics melting realization at electric smelting pipe fitting both ends and its complex pipeline butt joint, nevertheless, if the liquid in the pipeline flows out to the weld zone between electric smelting pipe fitting and the pipeline, can lead to the butt fusion effect of electric smelting pipe fitting and pipeline relatively poor, and current pipe fitting is not convenient for take the water welding.

Disclosure of Invention

The utility model aims to solve the technical defects, and provides an electric melting pipe fitting structure which has the advantages of allowing welding with water and having a good welding effect.

In order to solve the technical problem, the technical scheme of the utility model is as follows: the utility model provides an electric smelting pipe fitting structure, includes the pipe fitting body, pipe fitting body inner wall is provided with two copper line heating coil, the pipe fitting inner wall is provided with two rubber seal, rubber seal keeps away from another rubber seal's lateral wall is seted up inclined plane, the inclined plane orientation is close to copper line heating coil slope sets up, just the inclined plane with the angle that the inner wall of pipe fitting body formed is a, and angle a is the obtuse angle, two the annular has all been seted up to the lateral wall that rubber seal is close to mutually, the annular orientation the inclined plane slope sets up.

Through the technical scheme, when the structure is used for connecting two pipelines, the two pipelines are respectively inserted into the inner walls at the two ends of the pipe fitting body, the inclined planes are abutted against the corresponding pipelines, so that the two pipelines are convenient to approach each other, the inclined planes are close to one side of the ring groove and deform, the interference of the rubber sealing ring on the pipeline extending into the inner wall of the pipe fitting body is reduced to a certain extent, after the two pipes are connected, the copper wire heating coil is heated to melt the contact surface of the pipe fitting body and the pipelines under the action of the electric fusion welding machine, so that the pipe fitting body is bonded with the two pipelines, the ring groove and the inclined planes are both abutted against the corresponding pipelines under the action of the elastic force, the sealing performance of the rubber sealing ring on the inner walls of the pipelines and the pipe fitting body is ensured, and the water in the pipelines is prevented from entering the inner walls of the pipe fitting body corresponding to the copper wire heating coil, the welding with water can be carried out in the maintenance by the staff conveniently.

Preferably, the copper wire heating coil further comprises two wiring groups, the two wiring groups are respectively connected with the corresponding two copper wire heating coils, and each wiring group comprises a positive copper wiring terminal and a negative copper wiring terminal.

Through above-mentioned technical scheme, through with electric fusion welding machine with the positive copper terminal and the negative copper terminal connection that correspond for corresponding wiring group accomplishes the ohmic connection with copper line heating coil, the staff can carry out synchronous ohmic heating or single ohmic heating to two copper line heating coils.

Preferably, the wiring group further comprises two wiring post rings integrally formed with the pipe fitting body, and the positive copper wiring post and the negative copper wiring post are respectively arranged in the two wiring post rings.

Through above-mentioned technical scheme, two binding post rings are used for protecting positive copper terminal and the negative copper terminal that corresponds to ensure that positive copper terminal and negative copper terminal tight fit are connected in electric fusion welding machine.

Preferably, the inner wall of the pipe fitting body is provided with a mounting groove for mounting the rubber sealing ring.

Through above-mentioned technical scheme, the mounting groove is inconsistent with rubber seal, plays the positioning action to rubber seal, avoids rubber seal to take place the offset when extrusion deformation because of the entering of pipeline.

Preferably, the outer wall of the pipe fitting body is provided with a reinforcing ring corresponding to the mounting groove.

Through above-mentioned technical scheme, beaded finish and pipe fitting body integrated into one piece for strengthen the structural strength that the pipe fitting body corresponds mounting groove department.

Preferably, a positioning ring is arranged on the inner wall of the pipe fitting body and close to the position between the two installation grooves.

Through above-mentioned technical scheme, the holding ring both sides are contradicted with two pipelines respectively for spacing pipeline is at this internal the stretching into of pipe fitting, ensures that two pipelines accomplish the butt joint with correct position.

Preferably, the outer wall of the pipe fitting body is provided with a mounting hole corresponding to the copper wire heating coil, the mounting hole cover is provided with an observation window, and a pipe fitting indicator is arranged in the mounting hole.

Through above-mentioned technical scheme, when this structure and pipeline welding, the pipe fitting indicator utilizes the melting charge thermal expansion ejecting, and staff's accessible observation window observes the pipe fitting indicator, judges whether copper line heating coil generates heat the work and welds and accomplish the fastness in welding process.

Drawings

FIG. 1 is a schematic structural view of an embodiment;

FIG. 2 is a cross-sectional view of FIG. 1;

fig. 3 is an enlarged view of region a in fig. 2.

In the figure: 1. a tube body; 2. a copper wire heating coil; 3. a wiring group; 31. a positive copper binding post; 32. a negative copper terminal; 33. a terminal post ring; 4. a rubber seal ring; 5. a bevel; 6. a ring groove; 7. a pipe fitting indicator; 8. a label; 9. a reinforcement ring; 10. mounting grooves; 11. a positioning ring; 12. mounting holes; 13. and (4) an observation window.

Detailed Description

The utility model is further described by way of example with reference to the accompanying drawings.

Referring to fig. 1, 2 and 3, an electric melting pipe structure includes a pipe body 1 and two wiring sets 3, a label 8 for distinguishing and marking the pipe body 1 is arranged on the pipe body 1, and the pipe body 1 is made of HDPE plastic by injection molding. Two copper wire heating coils 2 are arranged on the inner wall of the pipe fitting body 1, two wiring sets 3 are respectively connected with the two corresponding copper wire heating coils 2, each wiring set 3 comprises a positive copper wiring terminal 31, a negative copper wiring terminal 32 and two wiring column rings 33 which are integrally formed with the pipe fitting body 1, the middle parts of the wiring column hole rings of the pipe fitting body 1 are punched in the positive copper wiring terminal 31 and the negative copper wiring terminal by using a small punch press, the two wiring column rings 33 are used for protecting the corresponding positive copper wiring terminal 31 and the negative copper wiring terminal 32 and ensuring that the positive copper wiring terminal 31 and the negative copper wiring terminal 32 are tightly connected with an electric melting welding machine, so that the corresponding wiring sets 3 and the copper wire heating coils 2 are electrically connected, a worker can synchronously electrically heat or singly electrically heat the two copper wire heating coils 2, under the action of the electric melting machine, the copper wire heating coils 2 are heated to melt the contact surfaces of the pipe fitting body 1 and a pipeline, so that the tube body 1 is bonded to the two pipes.

The outer wall of the pipe fitting body 1 corresponding to the copper wire heating coil 2 is provided with a mounting hole 12, the mounting hole 12 is covered with an observation window 13, and a pipe fitting indicator 7 is arranged in the mounting hole 12. When the structure is welded with a pipeline, the pipe fitting indicator 7 is ejected out by utilizing the thermal expansion of the melting material, and a worker can observe the pipe fitting indicator 7 through the observation window 13 to judge whether the copper wire heating coil 2 generates heat to do work in the welding process and the welding completion fastness.

Two rubber seal 4 are arranged on the inner wall of the pipe fitting, an inclined plane 5 is arranged on the side wall, far away from the other rubber seal 4, of the rubber seal 4, the inclined plane 5 is arranged in an inclined mode towards the copper wire heating coil 2 close to the inclined plane, the angle formed by the inclined plane 5 and the inner wall of the pipe fitting body 1 is an angle a, and the angle a is an obtuse angle. Annular grooves 6 are formed in the side walls, close to each other, of the two rubber sealing rings 4, and the annular grooves 6 are obliquely arranged towards the inclined plane 5. When using two pipelines of this structural connection, insert two pipelines respectively in the inner wall at pipe fitting body 1 both ends, inclined plane 5 is inconsistent with the pipeline that corresponds, be convenient for two pipelines to be close to each other, the interference that causes when having reduced rubber seal 4 to the pipeline to stretch into pipe fitting body 1 inner wall to a certain extent, inclined plane 5 takes place to deform and is close to the deformation of annular 6 one side, the setting of annular 6 has further reduced the interference of rubber seal 4 to the pipeline, make the butt joint of two pipelines comparatively laborsaving, annular 6 all contradicts in corresponding the pipeline with inclined plane 5, guaranteed the leakproofness of rubber seal 4 between pipeline and pipe fitting body 1 inner wall, prevent the moisture in the pipeline to get into pipe fitting body 1 and correspond the inner wall department of copper heating coil 2, the staff of being convenient for can take the water welding in the maintenance. The mounting groove 10 that supplies rubber seal 4 installation is seted up to 1 inner wall of pipe fitting body, and mounting groove 10 is inconsistent with the sealing washer, plays the positioning action to the sealing washer, avoids rubber seal 4 to take place the offset when extrusion deformation because of the entering of pipeline. The positioning ring 11 is arranged on the inner wall of the pipe fitting body 1 and close to the position between the two mounting grooves 10, two sides of the positioning ring 11 are respectively abutted against the two pipelines, the pipe fitting body 1 is used for limiting the pipe to stretch into the pipe fitting body, and the two pipelines are ensured to be butted at correct positions.

The outer wall of the pipe fitting body 1 is provided with a reinforcing ring 9 integrally formed with the pipe fitting body 1 corresponding to the mounting groove 10, so that the structural strength of the pipe fitting body 1 corresponding to the mounting groove 10 is enhanced, and the pipe fitting body is prevented from being deformed due to impact.

The above are only typical examples of the present invention, and besides, the present invention may have other embodiments, and all the technical solutions formed by equivalent substitutions or equivalent changes are within the scope of the present invention as claimed.

Claims

1. An electric smelting pipe fitting structure, characterized by: including pipe fitting body (1), pipe fitting body (1) inner wall is provided with two copper line heating coil (2), the pipe fitting inner wall is provided with two rubber seal (4), another is kept away from in rubber seal (4) the lateral wall of rubber seal (4) is seted up inclined plane (5), inclined plane (5) orientation is close to copper line heating coil (2) slope sets up, just inclined plane (5) with the angle that the inner wall of pipe fitting body (1) formed is an, and angle an is the obtuse angle, two annular (6) have all been seted up to the lateral wall that rubber seal (4) are close to mutually, annular (6) orientation inclined plane (5) slope sets up.

2. An electrofusion pipe fitting structure according to claim 1, characterised in that: still including two wiring groups (3), two wiring groups (3) respectively with two that correspond copper line heating coil (2) are connected, wiring group (3) are including positive copper terminal (31) and burden copper terminal (32).

3. An electrofusion pipe fitting structure according to claim 2, characterised in that: the wiring group (3) further comprises two wiring column rings (33) which are integrally formed with the pipe fitting body (1), and the positive copper wiring column (31) and the negative copper wiring column (32) are respectively arranged and two in the wiring column rings (33).

4. An electrofusion pipe fitting structure according to claim 1, characterised in that: the inner wall of the pipe fitting body (1) is provided with a mounting groove (10) for mounting the rubber sealing ring (4).

5. An electrofusion pipe fitting structure according to claim 4, characterised in that: the outer wall of the pipe fitting body (1) is provided with a reinforcing ring (9) corresponding to the mounting groove (10).

6. An electrofusion pipe fitting structure according to claim 4, characterised in that: the inner wall of the pipe fitting body (1) is provided with a positioning ring (11) at a position close to the position between the two mounting grooves (10).

7. An electrofusion pipe fitting structure according to claim 1, characterised in that: the outer wall of the pipe fitting body (1) corresponds to the copper wire heating coil (2) and is provided with a mounting hole (12), the mounting hole (12) is covered with an observation window (13), and a pipe fitting indicator (7) is arranged in the mounting hole (12).