CN214618435U

CN214618435U - Integral PE pipe fitting with steel lock sleeve embedded therein

Info

Publication number: CN214618435U
Application number: CN202120831906.3U
Authority: CN
Inventors: 王新宇
Original assignee: Zhuoyi Xinyan Machinery Chongqing Co ltd
Current assignee: Zhuoyi Xinyan Machinery Chongqing Co ltd
Priority date: 2021-04-21
Filing date: 2021-04-21
Publication date: 2021-11-05
Anticipated expiration: 2031-04-21

Abstract

The utility model provides an integral PE pipe fitting with an embedded steel lock sleeve, belonging to the technical field of natural gas pipe networks, comprising a steel pipe sleeve, a transition pipe and a PE pipe network connecting pipe which are connected in sequence and integrally, wherein a steel lock hoop is arranged in the steel pipe sleeve; the length of the steel lock hoop is 60% of that of the steel pipe sleeve; the pipe wall thickness of the transition pipe is gradually reduced from the steel pipe sleeve to the PE pipe network connecting pipe; the utility model provides a design, both solved the creep prevention problem of PE material, also solved the anticorrosion problem of lock hoop.

Description

Integral PE pipe fitting with steel lock sleeve embedded therein

Technical Field

The utility model relates to a natural gas pipe network technical field specifically is a whole PE pipe fitting of interior planting steel lock tube.

Background

The steel-plastic conversion pipe fitting is widely applied to natural gas or other fluid conveying pipe networks, and the steel-plastic joint of the steel-plastic conversion pipe fitting needs to adopt a steel locking hoop to prevent leakage or falling off caused by creep deformation of PE materials, so that the steel locking hoop is still required to be prevented from being corroded and damaged in a buried working state. The steel lock hoop and the PE pipe fitting of the existing steel-plastic conversion pipe fitting product are two components, after the steel lock hoop and the PE pipe fitting are assembled, the steel lock hoop is sleeved on the excircle of the PE pipe fitting, and is in an exposed state, and anti-corrosion treatment is needed to be carried out, and the steel lock hoop and a connected steel pipe are free of anti-corrosion leak gaps, so that the steel-plastic conversion pipe fitting is ensured to be integrally anti-corrosion and leak-free. Although the surface area of the steel lock hoop is small, the anticorrosion process is complicated, the integral quality of the product is directly influenced, the control difficulty of the product cost and the production efficiency is difficult, and the connection reliability, the anticorrosion reliability, the production cost and the efficiency of the steel-plastic conversion pipe fitting are closely related to the operation cost and the safety of a pipe network and the living environment and the life quality of people.

SUMMERY OF THE UTILITY MODEL

The technique that exists is not enough to the aforesaid, the utility model aims at providing an implant whole PE pipe fitting of steel lock tube, has both solved the creep deformation problem of preventing of PE material, has also solved the anticorrosion problem of lock hoop.

In order to solve the technical problem, the utility model adopts the following technical scheme:

an integral PE pipe fitting internally implanted with a steel lock sleeve is characterized by comprising a steel pipe sleeve, a transition pipe and a PE pipe network connecting pipe which are sequentially and integrally connected, wherein a steel lock hoop is arranged in the steel pipe sleeve; the length of the steel lock hoop is 60% of that of the steel pipe sleeve; the pipe wall thickness of the transition pipe is gradually reduced from the steel pipe sleeve to the PE pipe network connecting pipe.

Preferably, the pipe wall thickness of the steel pipe sleeving pipe inside the steel lock hoop is greater than that of the PE pipe network connecting pipe.

Preferably, the wall thickness of the steel pipe casing pipe outside the steel lock hoop is greater than 2 mm.

Preferably, the inner hole of the transition pipe is tapered to form a conical transition.

The beneficial effects of the utility model reside in that: the utility model provides a design, both solved the creep prevention problem of PE material, also solved the anticorrosion problem of lock hoop.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of an integrated PE pipe fitting with a steel lock sleeve embedded therein according to an embodiment of the present invention.

Description of reference numerals:

PE pipe network connecting pipe 1, transition pipe 2, steel-pipe adapter 3, steel lock hoop 4.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that in the description of the present invention, the terms "in", "up", "down", "horizontal", "inner", etc. indicate directions or positional relationships based on those shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, or an integral connection; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1, an integral PE pipe fitting with a steel lock sleeve embedded therein is formed by injection molding, and includes a steel pipe socket 3, a tapered transition pipe 2 and a PE pipe network connection pipe 1 which are integrally connected in sequence, wherein a steel lock hoop 4 is arranged in the steel pipe socket 3; the steel pipe sleeving pipe 3 is sleeved with the steel pipe, and the PE pipe network connecting pipe 1 is connected with an underground PE pipe network; the conical transition pipe 2 can avoid the stress concentration phenomenon caused by steps generated by reducing the size; the length of the steel lock hoop 4 is 60 percent of that of the steel pipe sleeving pipe 3; the pipe wall thickness of the transition pipe 2 is gradually reduced from the steel pipe sleeving pipe 3 to the PE pipe network connecting pipe 1; the steel lock hoop 4 can prevent the PE material at the sleeving part from creeping and is coated in the PE material to avoid being corroded.

Further, the pipe wall thickness of the steel pipe sleeving pipe 3 inside the steel lock hoop 4 is larger than that of the PE pipe network connecting pipe 1.

Further, the thickness of the pipe wall of the steel pipe casing pipe 3 outside the steel lock hoop 4 is more than 2 mm.

Furthermore, the inner hole of the transition pipe 2 is tapered to form a conical transition.

Further, the pipe diameter wall thickness of the underground PE pipe network connecting pipe 1 is matched with that of the pipe network by adopting a PE pipe.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. An integral PE pipe fitting internally implanted with a steel lock sleeve is characterized by comprising a steel pipe sleeve, a transition pipe and a PE pipe network connecting pipe which are sequentially and integrally connected, wherein a steel lock hoop is arranged in the steel pipe sleeve; the length of the steel lock hoop is 60% of that of the steel pipe sleeve; the pipe wall thickness of the transition pipe is gradually reduced from the steel pipe sleeve to the PE pipe network connecting pipe.

2. The integral PE pipe fitting with the embedded steel lock sleeve as claimed in claim 1, wherein the wall thickness of the steel pipe connecting pipe inside the steel lock hoop is greater than that of the PE pipe network connecting pipe.

3. The integral PE pipe fitting with an embedded steel lock sleeve as claimed in claim 1, wherein the thickness of the pipe wall of the steel pipe casing pipe outside the steel lock hoop is greater than 2 mm.

4. The integral PE tube with an embedded steel lock sleeve as claimed in claim 1, wherein the inner bore of the transition tube is tapered with a conical transition.