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PE pipeline cold connecting sleeve barrel

A technology of cold connection and sleeve, which is applied in the direction of pipeline connection arrangement, pipe/pipe joint/fitting, mechanical equipment, etc. It can solve the problems of long electric melting heating time and cooling time, affecting the smooth flow of water, and scrapping the electric melting sleeve, etc. , to achieve the effect of shortening the operation time of pipeline connection, facilitating on-site construction operation and ensuring the quality of pipeline connection

Inactive Publication Date: 2013-09-11
李忠诚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When small-diameter pipes are butt-jointed by hot melt, the melted grease will overflow due to the pressure, resulting in a reduction in the inner diameter and affecting the smooth flow of water.
However, when connecting PE pipes with steel wire skeletons, because hot-melt butt joints cannot be implemented, electric fusion sleeve welding must be used. The operation of electric fusion sleeves is complicated, and the visibility of molten fat is zero, and resistance wire short circuit or welding often occurs If it is not firm, it will cause the electrofusion sleeve to be scrapped and increase the construction cost
In addition, electrofusion connections require long electrofusion heating and cooling time, which affects the efficiency of pipeline construction

Method used

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  • PE pipeline cold connecting sleeve barrel
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Example 1, see Figure 1-Figure 2 , a PE pipe cold connection sleeve, including a sleeve main body 1, the circumference of the sleeve main body close to the inner wall at both ends is provided with a plurality of annular protrusions 1-5 connected with it, when the pipe 4 is inserted into the sleeve After the main body of the cylinder, it is clamped and sealed with the pipeline through the annular protrusion 1-5 on the circumference.

[0032] The connecting sleeve also includes at least two extrusion covers 5 and cover clips 6 arranged in the axial direction of the outer wall of the sleeve main body for fastening the sleeve main body and the PE pipe. The extruded cover is approximately tile-shaped, and a horizontal edge 5-3 extends from the axial side of the extruded cover, and the edge is formed with a slot 5 for clamping the cover clip. -3-1, on the inner wall of the extruded cover close to the port, there is a locking tooth 5-2 for clamping the inserted pipe; the ext...

Embodiment 2

[0040] Example 2, see Figure 5-Figure 7, a PE pipeline cold connection sleeve, comprising a sleeve main body 1, the sleeve main body is a double wall structure with a connecting body 1-3 on the axial middle part, and the connecting bodies on both sides of the sleeve main body A telescopic buffer part 1-1 and a plugging sleeve insertion part 1-2 adjacent to the telescopic buffer part are arranged symmetrically between the double-layer cylinder walls. Slots for inserting the hot-melt fixing block 3 are formed. In this embodiment, at least two symmetrically arranged slots for inserting hot-melt fixing blocks are formed on the circumference of both ends of the sleeve body, and at least two symmetrically arranged slots are formed on the circumference of one end of the blocking sleeve. There are slots for inserting hot-melt fixing blocks, and the number of slots can also be increased according to the diameter of the pipe or the working conditions.

[0041] The PE pipe cold connec...

Embodiment 3

[0044] Example 3, see Figure 8-Figure 9 , PE pipe cold connection sleeve, including sleeve main body 1, the sleeve main body is a double-layer wall structure with connecting body 1-3 on the axial middle part, and the double-layer wall structure on both sides of the sleeve main body connecting body A telescopic buffer part 1-1 and a plugging sleeve insertion part 1-2 adjacent to the telescopic buffer part are arranged symmetrically between the cylinder walls. Insert the slot of the hot-melt fixing block 3. In this embodiment, at least two symmetrically arranged slots for inserting hot-melt fixing blocks are formed on the circumference of both ends of the sleeve body, and at least two symmetrically arranged slots are formed on the circumference of one end of the blocking sleeve. There are slots for inserting hot-melt fixing blocks, and the number of slots can also be increased according to the diameter of the pipe or the working conditions.

[0045] The PE pipe cold connectio...

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Abstract

The invention relates to a PE pipeline cold connecting sleeve barrel. The PE pipeline cold connecting sleeve barrel comprises a sleeve barrel body, is characterized in that a plurality of annular protruding portions integrated with the sleeve barrel body are arranged on the circumference, close to the two-end inner walls, of the sleeve barrel body, and further comprises at least two extrusion sealing covers and sealing cover clips, wherein the extrusion sealing covers are arranged in the axial direction of the outer wall of the sleeve barrel body, and the sealing cover clips are used for clamping and fastening the edge portions of the extrusion sealing covers. Clamping teeth are arranged on the inner walls of the extrusion sealing covers; the edges portions of the extrusion sealing covers are clamped through the sealing cover clips to achieve extrusion of the sleeve barrel body and pipelines. The PE pipeline cold connecting sleeve barrel has the advantages of being capable of guaranteeing the very tight sealing connection of the sleeve barrel body and the pipelines because the annular protruding portion on the circumference of the inner wall of the sleeve barrel body is tightly matched with the pipelines inserted in the sleeve barrel body in an extrusion mode, and the extrusion of the sleeve barrel body is achieved through the extrusion sealing cover and the sealing cover clips, easy, convenient and fast to operate in a field installment mode, capable of substantially shortening pipeline construction time, guaranteeing pipeline connecting quality, reducing pipeline laying construction cost, and prolonging service life of the pipelines.

Description

technical field [0001] The invention belongs to the technical field of pipeline connection, in particular to a PE pipeline cold connection sleeve. Background technique [0002] At present, the construction connections of PE pipes mainly include hot-melt butt joints, electric fusion connections and mechanical connections according to the current international general methods. Among them, the large-diameter pipes and pipe fittings are connected by hot-melt butt joint, and the hot-melt connection is that the pipes or pipe fittings are first melted and then polymerized and connected into one body. When small-diameter pipes are butt-jointed by hot-melt, the melted grease will overflow due to the effect of pressure, resulting in a reduction in the inner diameter and affecting the smooth flow of water. However, when connecting PE pipes with steel wire skeletons, because hot-melt butt joints cannot be implemented, electric fusion sleeve welding must be used. The operation of electr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L47/12F16L47/03
Inventor 李忠诚
Owner 李忠诚
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