CN211853194U

CN211853194U - Steel-plastic adapter thermal shrinkable sleeve

Info

Publication number: CN211853194U
Application number: CN202020498591.0U
Authority: CN
Inventors: 李定侠; 李兵; 王军; 陆源; 冯凯
Original assignee: Chengdu Changjiang Pyrocondensation Materials Co ltd
Current assignee: Chengdu Changjiang Pyrocondensation Materials Co ltd
Priority date: 2020-04-08
Filing date: 2020-04-08
Publication date: 2020-11-03
Anticipated expiration: 2030-04-08

Abstract

The utility model discloses a crossover sub thermal shrinkable sleeve is moulded to steel for the cover is established on the steel is moulded the crossover sub by plastic pipe end, joint and steel pipe end constitution, be T shape, appearance for cylindric and hollow thermal shrinkable sleeve including the cross-section, set up the thermal shrinkable sleeve major part in thermal shrinkable sleeve one end, set up the thermal shrinkable sleeve microcephaly at the thermal shrinkable sleeve other end, the thermal shrinkable sleeve major part parcel is served at plastic pipe end and steel pipe at the outward flange that connects, and both ends one-to-one parcel, the thermal shrinkable sleeve microcephaly is established at the outward flange of steel pipe end, and is close to the one end that connects. The utility model provides a when sealed crossover sub thermal shrinkable sleeve be not convenient for install, the big problem of size surplus, have very high practical value and spreading value in the anticorrosive field of crossover sub.

Description

Steel-plastic adapter thermal shrinkable sleeve

Technical Field

The utility model belongs to the technical field of the crossover sub is anticorrosive, and especially a crossover sub thermal shrinkable sleeve is moulded to steel.

Background

In the process of entering a house of a natural gas pipeline, gas is used safely, China provides that a steel pipeline is required to be adopted for entering a house of a low-pressure pipeline, a steel-plastic conversion joint is required to be adopted for transition from a high-pressure steel pipeline to a low-pressure plastic pipeline, the steel-plastic conversion joint is particularly important to seal, a plastic end and a steel pipe end are connected together usually in a mechanical sealing mode, the outer diameter of the joint is larger than that of the plastic pipe and the steel pipe, a heat-shrinkable sleeve needs to penetrate through the joint during corrosion prevention and is shrunk on the plastic pipe and the steel pipe at the two ends of the joint to play a role in sealing and corrosion prevention, for convenience of installation, the heat-shrinkable sleeve is usually selected to be larger than the outer diameter of the joint.

Therefore, a steel-plastic adapter heat shrinkable sleeve which is convenient to install and has small size allowance is urgently needed.

SUMMERY OF THE UTILITY MODEL

To the above problem, an object of the utility model is to provide a crossover sub thermal shrinkable sleeve is moulded to steel, the utility model discloses a technical scheme as follows:

a heat-shrinkable sleeve for the steel-plastic conversion joint is composed of a hollow heat-shrinkable sleeve with T-shaped cross-section and cylindrical shape, a big end at one end of said heat-shrinkable sleeve, and a small end at another end of said heat-shrinkable sleeve.

Furthermore, the large end of the thermal shrinkage sleeve is wrapped on the outer edge of the joint, and the two ends of the thermal shrinkage sleeve are correspondingly wrapped on the end of the plastic pipe and the end of the steel pipe one by one.

Furthermore, the small head of the heat-shrinkable sleeve is sleeved at the outer edge of the end of the steel pipe and close to one end of the joint.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) the utility model is skillfully provided with the large head and the small head of the thermal shrinkable sleeve, thereby ensuring the size of the thermal shrinkable sleeve corresponding to each part of the pipeline to be installed, reducing the size allowance, saving materials and simultaneously ensuring the installation to be simpler, more convenient and faster;

(2) the utility model is skillfully provided with the big end of the thermal shrinkable sleeve, and the plastic pipe section has the anti-corrosion performance, so the big end of the thermal shrinkable sleeve corresponding to the plastic pipe end is arranged shorter, thereby saving materials while ensuring normal use and being more convenient to install;

(3) the utility model discloses ingenious selection thermal shrinkable sleeve, thermal shrinkable sleeve's inside is provided with the hot melt adhesive for adapter is moulded to sealed steel is more reliable, fastening more.

The utility model discloses simple structure, safe and reliable have very high practical value and spreading value in the anticorrosive field of crossover sub.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as a limitation of the scope of protection, and for those skilled in the art, other related drawings may be obtained from these drawings without inventive effort.

Fig. 1 is a schematic structural diagram of the present invention.

In the drawings, the names of the parts corresponding to the reference numerals are as follows:

1-plastic pipe end, 2-joint, 3-steel pipe end, 4-large heat-shrinkable sleeve head, 5-small heat-shrinkable sleeve head and 6-heat-shrinkable sleeve.

Detailed Description

To make the objectives, technical solutions and advantages of the present application more clear, the present invention will be further described with reference to the accompanying drawings and examples, and embodiments of the present invention include, but are not limited to, the following examples. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Examples

As shown in fig. 1, the present embodiment provides a heat shrinkable sleeve for a steel-plastic crossover joint, and it should be noted that the terms of "first", "second", and the like in the present embodiment are only used for distinguishing similar components, and are not to be understood as a specific limitation to the protection scope. In the present embodiment, the terms of orientation such as "bottom", "top", "peripheral edge", "center", and the like are explained based on the drawings.

The steel-plastic adapter heat shrinkable sleeve is sleeved on a steel-plastic adapter consisting of a plastic pipe end 1, a connector 2 and a steel pipe end 3 and comprises a hollow heat shrinkable sleeve 6 with a T-shaped section and a cylindrical shape, a large heat shrinkable sleeve head 4 arranged at one end of the heat shrinkable sleeve 6 and a small heat shrinkable sleeve head 5 arranged at the other end of the heat shrinkable sleeve 6.

Specifically, the large end 4 of the heat-shrinkable sleeve is wrapped on the outer edge of the joint 2, the two ends of the heat-shrinkable sleeve are wrapped on the plastic pipe end 1 and the steel pipe end 3 in a one-to-one correspondence manner, and the small end 5 of the heat-shrinkable sleeve is sleeved on the outer edge of the steel pipe end 3 and close to one end of the joint 2.

During the installation, with thermal shrinkable sleeve stub end 4 of thermal shrinkable sleeve 6 in front, embolia from steel pipe end 3 toward plastic pipe end 1, thermal shrinkable sleeve stub end 4 embolias plastic pipe end 1 completely, and 5 one ends of thermal shrinkable sleeve stub end embolias steel pipe end 3 completely simultaneously, through the mode of heating, thermal shrinkable sleeve 6 shrink, the parcel is on plastic pipe end 1, joint 2 and steel pipe end 3, and the inlayer hot melt adhesive is heated simultaneously and is melted, bonds on joint 2, plays sealed anticorrosive effect. After installation, the figure is shown.

The above-mentioned embodiments are merely preferred embodiments of the present invention, and are not limitations on the protection scope of the present invention, but all the changes made by adopting the design principle of the present invention and performing non-creative work on this basis shall fall within the protection scope of the present invention.

Claims

1. A steel-plastic conversion joint heat shrinkable sleeve is used for being sleeved on a steel-plastic conversion joint consisting of a plastic pipe end (1), a joint (2) and a steel pipe end (3) and is characterized by comprising a heat shrinkable sleeve (6) which is T-shaped in cross section, cylindrical in shape and hollow, a large heat shrinkable sleeve head (4) arranged at one end of the heat shrinkable sleeve (6) and a small heat shrinkable sleeve head (5) arranged at the other end of the heat shrinkable sleeve (6).

2. The steel-plastic crossover joint heat shrink according to claim 1, characterized in that the heat shrink big head (4) wraps the outer edge of the joint (2) and the two ends wrap the plastic pipe end (1) and the steel pipe end (3) in one-to-one correspondence.

3. The steel-plastic crossover joint heat shrink according to claim 1, characterized in that the heat shrink small end (5) is fitted over the outer edge of the steel pipe end (3) and near one end of the joint (2).