CN216046112U - Electric melting flange ring for quick flange connection - Google Patents

Abstract

The utility model relates to the technical field of pipeline connection, in particular to an electric melting flange ring for quick flange connection, which comprises an electric melting pipe body, wherein the electric melting pipe body is used for being sleeved outside a plastic pipeline connecting end and electrically melting and connecting with the plastic pipeline, the electric melting pipe body is also used for limiting a flange sheet sleeved on the plastic pipeline, a resistance wire is arranged in the electric melting pipe body, and an electrode hole is arranged on the outer wall of the electric melting pipe body. The electric melting pipe body is arranged on the plastic pipeline in an electric melting mode, the problem that the flange head of the electric melting connection is easy to wear and damage is solved, the flange piece on the plastic pipeline is directly sleeved on the plastic pipeline instead of the electric melting pipe body, the problem that the flange piece cannot be sleeved on the electric melting pipe body due to the fact that the inner circle aperture of the flange piece is too small is avoided, and flange connection of the plastic pipeline and the metal pipeline can be achieved quickly.

Description

Electric melting flange ring for quick flange connection

Technical Field

The utility model relates to the technical field of pipeline connection, in particular to an electric melting flange ring for quick flange connection.

Background

The applicant develops a polyethylene wear-resistant composite pipeline, the outer layer of the pipeline is an HDPE layer, the inner layer of the pipeline is a special wear-resistant material layer, the polyethylene wear-resistant composite pipeline is often applied to the field of mine dredging to replace a metal pipeline, and the service life of the pipeline can be prolonged.

In practical application, the connection problem of the wear-resistant composite pipeline and the metal pipeline is involved. In the prior art, a plastic pipeline is connected with a metal pipeline by adopting a flange connection, wherein the flange is generally connected with the plastic pipeline by hot-melt butt joint and electric-fusion welding flange heads. The hot melt butt joint needs butt welding, the operation is relatively complicated, and when the butt joint flange head does not have special wear-resistant material down, the flange head department is damaged by wearing and tearing easily. The electric melting welding flange joint generally comprises the steps that an electric melting flange joint is sleeved outside a plastic pipeline, a matched flange sheet is sleeved on the electric melting flange joint, and the plastic pipeline is connected with a metal pipeline through the flange sheet connected with the flange sheet welded on the metal pipeline. Although the problem of hot melt butt joint is solved by the connection in the mode, the outer diameter of the plastic pipeline with partial specification is larger than the outer diameter of the metal pipeline in the same series, and the flange sheet on the plastic pipeline is required to be sleeved on the electric melting flange head during connection, and the inner circular hole diameter of the flange sheet matched with the common series pipeline can only be matched with the metal pipeline and cannot be sleeved on the electric melting flange head, so that the connection of the plastic pipeline and the metal pipeline cannot be realized. If a flange piece with a proper inner circle aperture is selected to be sleeved on the electric melting flange head, the center distance of a screw hole of the flange piece cannot be matched with the flange piece on the metal pipeline, and the connection of the two flanges cannot be realized.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an electric melting flange ring for quick flange connection, and aims to solve the problem that a part of specification plastic pipelines and metal pipelines in the prior art cannot be connected in a mode of welding a flange head by electric melting.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides an electric smelting flange circle for quick flange joint, includes the electric smelting body, and the electric smelting body is used for the cover to be connected with plastic conduit electric smelting outside the plastic conduit link, and the electric smelting body still is used for spacing the flange piece of cover on plastic conduit, is provided with the resistance wire in the electric smelting body, is provided with the electrode hole on the electric smelting body outer wall.

The principle and the beneficial effect of the scheme are as follows:

the electric melting pipe body is sleeved outside the connecting end of the plastic pipeline and is connected with the plastic pipeline in an electric melting mode through the electrode hole in an electrified mode. During actual operation, the flange pieces are sleeved on the plastic pipeline in advance, then the electric melting pipe body is connected to the end portion of the plastic pipeline in an electric melting mode, the end portion of the electric melting pipe body is flushed with the end portion of the plastic pipeline, the flange pieces are moved to be abutted against the electric melting pipe body, then the flange pieces on the plastic pipeline and the metal pipeline are connected through bolts (the flange pieces on the metal pipeline are directly welded on the metal pipeline), and therefore connection of the plastic pipeline and the metal pipeline is achieved. This scheme sets up electric smelting body electric smelting connection on plastic conduit, has solved the easy problem of wearing and tearing destruction of hot melt flange head department, and the direct cover of flange piece on the plastic conduit is on plastic conduit, rather than the cover on electric smelting body, can not appear because of the too little problem of unable cover on electric smelting body in the circle aperture in the flange piece, can realize plastic conduit and metal pipeline's flange joint fast. The electric smelting pipe body is used as a stress baffle of the flange sheet to limit the flange sheet, and a special plastic baffle and a light pipe fitting are not arranged at the rear end.

Further, still include the packing ring, the packing ring is connected at electric smelting body tip.

Has the advantages that: the gasket is used for leveling the end face of the plastic pipeline, so that subsequent connection is facilitated, and the sealing property of the joint of the plastic pipeline and the metal pipeline is improved.

Further, the plastic pipeline clamping device further comprises a clamping ring, the clamping ring is connected to the inner ring of the gasket along the axial direction of the gasket, and a clamping space for clamping the plastic pipeline is formed between the clamping ring and the inner wall of the electric melting pipe body.

Has the advantages that: when the plastic pipeline is connected, the end part of the plastic pipeline is inserted into a clamping space formed between the clamping ring and the electric melting pipe body, so that the connection stability of the plastic pipeline and the electric melting pipe body can be effectively improved.

Further, the clamping ring and the gasket are integrally formed, the clamping ring is in a flaring shape, and the large-diameter end of the clamping ring is far away from the gasket.

Has the advantages that: the clamping ring and the gasket are integrally formed and are convenient to process, and the structural strength and the integrity are better; the rand is flaring and the big footpath end is kept away from the packing ring and can be reduced intraductal slurry and to the impact of rand, prolongs its life.

Further, the gasket is detachably connected with the electric melting pipe body.

Has the advantages that: so set up convenient dismantlement and change.

Further, a plurality of clamping protrusions are arranged on the gasket, and clamping grooves used for being clamped with the clamping protrusions are formed in the end portion of the electric melting pipe body.

Has the advantages that: the clamping protrusions are clamped into the clamping grooves, so that the gasket can be connected to the electric melting pipe body, the structure is simple, and the connection is convenient.

Furthermore, the clamping protrusions are uniformly distributed on the gasket and are trapezoidal.

Has the advantages that: the clamping ring is arranged to be more balanced in stress and more stable in connection.

Furthermore, the number of the clamping protrusions is 4-8.

Has the advantages that: less than 4 clamping bulges have unsatisfactory connection effect, and 4-8 clamping bulges are reasonable.

Furthermore, the outer wall of the electric melting pipe body is also provided with an observation hole.

Has the advantages that: the quality of the electric melting connection is conveniently checked by arranging the observation hole.

Further, the thickness of the electric melting pipe body is more than or equal to 20 mm.

Has the advantages that: so set up can guarantee sufficient mechanical strength.

Drawings

Fig. 1 is a schematic structural view of an electrofusion pipe body in an embodiment of the present invention;

FIG. 2 is a schematic view of a gasket according to an embodiment of the present invention;

FIG. 3 is a longitudinal cross-sectional view of an embodiment of the present invention;

fig. 4 is a longitudinal sectional view of the present invention applied to a plastic pipe.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: electrode 1, joint recess 2, electric smelting body 3, joint arch 4, rand 5, packing ring 6, plastic conduit 7, flange piece 8, bolt hole 9, chucking space 10.

Example (b):

as shown in fig. 1, 2 and 3, an electrofusion flange ring for quick flange connection comprises an electrofusion pipe body 3 and a gasket 6, wherein a collar 5 is integrally formed on an inner ring of the gasket 6 along the axial direction of the electrofusion pipe body, a clamping space 10 for clamping a plastic pipeline 7 is formed between the collar 5 and the inner wall of the electrofusion pipe body 3, the collar 5 is flared, and the large-diameter end of the collar 5 is far away from the gasket 6. The electrofusion tube body 3 is formed in one step by adopting an injection molding process, the thickness of the electrofusion tube body 3 is more than or equal to 20mm, preferably 25mm in the embodiment, resistance wires are distributed on the inner wall of the electrofusion tube body 3, an electrode hole and an observation hole (not shown in the figure) are formed in the outer wall of the electrofusion tube body 3, the observation hole is positioned on one side of the electrode hole, an electrode 1 is installed at the electrode hole, and the electrode 1 is electrically connected with the resistance wires.

The connection can be dismantled at 3 right-hand members of electrofusion pipe body to packing ring 6, and is concrete, and integrated into one piece has 4-8 cross sections to be trapezoidal joint protruding 4 on packing ring 6, and protruding 4 quantity of joint is 6 in this embodiment, and 6 protruding 4 equipartitions of joint are on packing ring 6, and the protruding 4 minor diameter end of joint is towards the centre of a circle of packing ring 6, and 3 tip of electrofusion pipe body are opened has the joint recess 2 that is used for with the protruding 4 joints of joint.

The specific implementation process is as follows:

as shown in fig. 4, the end of the plastic pipeline 7 is marked with the depth of electric melting, the outer scale of the pipeline is scraped within the marked range, then a proper gasket 6 is selected according to the wall thickness grade of the plastic pipeline 7 (the width of the clamping space 10 just clamps the plastic pipeline 7), the gasket 6 is clamped at the right end of the electric melting pipe body 3 and is knocked tightly and smoothly by a rubber hammer, and after clamping, the outer wall of the gasket 6 is flush with the outer wall of the electric melting pipe body 3.

The matched flange sheet 8 is sleeved on the plastic pipeline 7, after the electric melting surface of the plastic pipeline 7 and the electric melting pipe body 3 is cleaned, the electric melting pipe body 3 is sleeved on the plastic pipeline 7, the marking depth is knocked in, the plastic pipeline 7 is tightly clamped in the clamping space 10, and the gasket 6 is tightly abutted to the end part of the plastic pipeline 7. The electrofusion pipe body 3 and the plastic pipeline 7 are connected together in an electrofusion mode according to electrofusion welding parameters, the observation hole can be used for observing the electrofusion quality of the pipe fitting, and the pipe fitting is naturally cooled after the electrofusion is completed.

The matched flange sheet is sleeved on the metal pipeline and fixed on the metal pipeline through welding, then the flange sheet 8 on the plastic pipeline 7 is moved to the left side of the electric smelting pipe body 3 to be abutted against the electric smelting pipe body 3, the plastic pipeline 7 and the metal pipeline are butted, the special flange gasket is placed at the right end of the gasket 6, bolts are used for penetrating through bolt holes 9 of the flange sheet 8 to connect and screw the plastic pipeline 7 and the flange sheet 8 on the metal pipeline, and therefore the connection of the plastic pipeline 7 and the metal pipeline is completed.

By adopting the utility model, the flange sheet 8 is directly sleeved on the plastic pipeline 7 instead of the electric melting flange head, thereby effectively avoiding the problem that the inner circle aperture of the flange sheet 8 is too small to be sleeved; in addition, through electric smelting body 3 and plastic conduit 7 electric smelting connection, compare hot melt and connect and can effectually avoid flange head department wearing and tearing to destroy, the connection effect is good.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims (10)

1. The utility model provides a quick flange joint is with electric smelting flange circle which characterized in that: the electric melting pipe body is used for being sleeved outside the plastic pipeline connecting end and connected with the plastic pipeline in an electric melting mode, the electric melting pipe body is further used for limiting a flange piece sleeved on the plastic pipeline, a resistance wire is arranged in the electric melting pipe body, and an electrode hole is formed in the outer wall of the electric melting pipe body.

2. An electric smelting flange ring for quick flange connection according to claim 1, characterized in that: the electric smelting pipe further comprises a gasket, and the gasket is connected to the end part of the electric smelting pipe body.

3. An electric smelting flange ring for quick flange connection according to claim 2, characterized in that: the plastic pipeline clamping device further comprises a clamping ring, the clamping ring is connected to the inner ring of the gasket along the axial direction of the gasket, and a clamping space for clamping the plastic pipeline is formed between the clamping ring and the inner wall of the electric melting pipe body.

4. An electric smelting flange ring for quick flange connection according to claim 3, characterized in that: the rand and packing ring integrated into one piece, the rand is flaring form and big footpath end is kept away from the packing ring.

5. An electric smelting flange ring for quick flange connection according to claim 2, characterized in that: the gasket is detachably connected with the electric melting pipe body.

6. An electric smelting flange ring for quick flange connection according to claim 5, characterized in that: the gasket is provided with a plurality of clamping protrusions, and the end part of the electric melting pipe body is provided with a clamping groove used for being clamped with the clamping protrusions.

7. An electric smelting flange ring for quick flange connection according to claim 6, characterized in that: the clamping bulges are uniformly distributed on the gasket and are trapezoidal.

8. An electric smelting flange ring for quick flange connection according to claim 7, characterized in that: the number of the clamping protrusions is 4-8.

9. An electrofusion flange ring for quick flange connection according to any of claims 1-8 characterised in that: the outer wall of the electric melting pipe body is also provided with an observation hole.

10. An electric smelting flange ring for quick flange connection according to claim 9, characterized in that: the thickness of the electric melting pipe body is more than or equal to 20 mm.

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