Socket pipe piece of heat melted connection

A socket-insertion and hot-melt technology, which is applied in the direction of pipes/pipe joints/pipes, pipeline connection arrangement, mechanical equipment, etc. The effect of avoiding false melting or false welding, improving connection strength and improving work quality

Active Publication Date: 2006-12-06
RIFENG ENTERPRISE GRP CO LTD
View PDF1 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of pipe joint socket has a large hot-melt area and long connection length, that is, the inner and outer ring walls are hot-melted at the same length. The metal bushing increases the manufacturing cost of the pipe fittings. Although this method seals the aluminum alloy layer at the port of the aluminum-plastic composite pipe, it overcomes the problem that the aluminum alloy layer is easily corroded when the pipeline transports liquid, but this pipe fitting The socket connection area of ​​the pipe is large, and the hot-melt length is long. When the pipe is inserted into the socket, a compressed air space in the socket will inevitably be formed. The compressed air in the socket cannot be discharged, thus forming a compressed air space in the socket, which will inevitably cause virtual melting or virtual welding, and it is very easy to generate bubble separation on the hot-melt connection surface, directly reducing the connection strength of the pipe fittings
At the same time, the socket described in the above-mentioned patent technical solution is actually a deep annular blind hole, and it is impossible to observe whether the inserted end of the pipe has reached the bottom of the blind hole during the hot-melt connection, thereby affecting the quality and strength of the hot-melt connection

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Socket pipe piece of heat melted connection
  • Socket pipe piece of heat melted connection
  • Socket pipe piece of heat melted connection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] see figure 1 , figure 2 As shown, one end of a hot-melt connection socket fitting for aluminum-plastic composite pipe is a joint 1, which is composed of an inner layer connection section 6 at the front end and a socket section 5 adjacent thereto, and the inner layer connection Section 6 is equal in diameter to the inner ring 1-2 of socket section 5 and is connected as a whole. An annular socket 3 is formed between them, and four radial exhaust observation holes 2 are evenly distributed on the same circumference at the rear of the outer ring 1-1. The axial length of the inner layer connection section 6 is longer than that of the socket section 5, the inner layer connection section 6 and the outer ring surface of the inner ring 1-2 form the main connection surface of the hot-melt connection, and the inner ring surface of the outer ring 1-1 It is the sealing end surface of the aluminum-plastic composite pipe 4, which belongs to the secondary connecting surface, and the ...

Embodiment 2

[0022] see image 3 As shown, compared with embodiment 1, the present embodiment has the following differences in the structure of joint 1:

[0023] The single-layer connection section of the joint 1 adopts the outer layer connection section 7 , which is an equal-diameter extension section of the outer ring 1 - 1 of the socket section 5 .

[0024] All the other structures are the same as in Example 1. The axial length of the outer layer connection section 7 is longer than the axial length of the socket section 5, and the outer layer connection section 7 and the inner ring surface of the outer ring 1-1 form the main connection surface of the hot-melt connection, and the inner ring 1-2 The outer ring surface of the aluminum-plastic composite pipe 4 is the sealing end surface of the aluminum-plastic composite pipe 4, which belongs to the secondary connection surface. The outer layer connecting section 7 and the pipe ring of the outer ring 1-1 are equal in diameter and wall thick...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The present invention discloses a hot-melt connecting spigot-and-socket pipe fitting for aluminium plastics composite pipe. At least one end of said pipe fitting possesses adjacent spigot-and-socket part and internal layer connecting part, the rear portion of said spigot-and-socket part is equipped with an exhaust viewing hole, and the internal and external layer hot-melt connections of said joint are not identical in length, so that said invention can completely solve the exhaust problem produced when the aluminium plastics composite pipe and spigot-and-socket pipe fitting are hot-melt connected.

Description

technical field [0001] The invention relates to the technical field of connecting pipe fittings for aluminum-plastic composite pipes, in particular to a hot-melt connection socket pipe fitting for aluminum-plastic composite pipes. Background technique [0002] There are two methods for the existing aluminum-plastic composite pipe hot-melt fittings. One is the outer layer welding method, that is, the outer layer of the pipe is hot-melt connected with the inner layer of the hot-melt pipe fitting. This connection method is generally used in ordinary plastic When the pipe hot-melt connection is applied to the aluminum-plastic composite pipe, since the aluminum alloy layer at the port of the aluminum-plastic composite pipe is not sealed, it is easy to corrode the aluminum alloy layer when the pipeline transports liquid, resulting in the delamination of the pipe, which greatly reduces the The safety performance of pipeline use. [0003] Another kind is inner and outer layer weldi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): F16L47/02
Inventor 田从陆彭晓翊李白千梁慧
Owner RIFENG ENTERPRISE GRP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap