CN212900213U

CN212900213U - PPR loose joint

Info

Publication number: CN212900213U
Application number: CN202021537092.4U
Authority: CN
Inventors: 俞新华
Original assignee: Zhejiang Yikai Copper Products Co ltd
Current assignee: Zhejiang Yikai Copper Products Co ltd
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2021-04-06
Anticipated expiration: 2030-07-29

Abstract

The utility model discloses a PPR loose joint, including body, loose joint outer screw and last body down, body, loose joint outer screw and last body group become PPR loose joint down, the body includes dope layer and functional layer down, the surface of locating the functional layer is scribbled to the dope layer, the functional layer includes wearing layer, first corrosion resistant layer, high temperature resistant layer, low temperature resistant layer and second corrosion resistant layer, the wearing layer is located the surface on first corrosion resistant layer, first corrosion resistant layer is located the surface on high temperature resistant layer, high temperature resistant layer is located the surface on low temperature resistant layer, low temperature resistant layer is located the surface on second corrosion resistant layer, the dope layer is epoxy resin lacquer. The utility model discloses a dope layer, wearing layer, first corrosion resistant layer, high temperature resistant layer, low temperature resistant layer and second corrosion resistant layer mutually support, have solved present PPR loose joint corrosion resistance not good, lead to life weak point, the problem that people used not convenient for.

Description

PPR loose joint

Technical Field

The utility model relates to an active joint technical field specifically is a PPR active joint.

Background

The movable joint is called union or union, and is a common pipeline connecting piece which can be conveniently mounted and dismounted, mainly comprising three parts of a nut, a cloud end and a flush joint, the variety of the socket movable joint is equal diameter and different diameter, the connection form of the pipeline connecting piece is divided into socket welding and threaded connection, the socket welding is to insert a steel pipe into a socket hole for welding, therefore, the socket movable joint is called socket movable joint, and the threaded connection is to screw the steel pipe into a screw hole for connection, so the socket movable joint is called threaded movable joint, but the existing PPR movable joint has poor corrosion resistance, so the service life is short, and the use by people is inconvenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a PPR loose joint possesses the good advantage of corrosion resistance, has solved present PPR loose joint corrosion resistance not good, leads to life weak point, the problem that people used not convenient for.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a PPR loose joint, includes body, loose joint outer screw and last body down, body, loose joint outer screw and last body make up into PPR loose joint down, the body includes dope layer and functional layer down, the surface of functional layer is located in the dope layer coating, the functional layer includes wearing layer, first corrosion resistant layer, high temperature resistant layer, low temperature resistant layer and second corrosion resistant layer, the wearing layer is located the surface on first corrosion resistant layer, first corrosion resistant layer is located the surface on high temperature resistant layer, high temperature resistant layer is located the surface on low temperature resistant layer, low temperature resistant layer is located the surface on second corrosion resistant layer.

Preferably, the coating layer is epoxy resin paint, and the wear-resistant layer is nylon engineering plastic.

Preferably, the first corrosion-resistant layer is fluorinated ethylene propylene plastic, and the high-temperature-resistant layer is polyether ether ketone plastic.

Preferably, the low temperature resistant layer is low-pressure polyethylene, and the second corrosion-resistant layer is polytetrafluoroethylene plastic.

Preferably, the thicknesses of the wear-resistant layer, the high-temperature-resistant layer and the second corrosion-resistant layer are equal, the thicknesses of the first corrosion-resistant layer and the low-temperature-resistant layer are equal, the thickness of the wear-resistant layer is two thirds of the thickness of the first corrosion-resistant layer, and the lower body, the loose joint outer bolt and the upper body are made of the same material.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model can prevent corrosion through the coating layer, prevent the movable joint from being corroded in the using process, has the wear-resistant function by utilizing the wear-resistant layer, prevents the thread from being worn off due to the abrasion of the movable joint, thereby prolonging the service life of the movable joint, and the first corrosion-resistant layer can play a role of corrosion resistance, so that the movable joint still has good corrosion resistance after the coating layer falls off, and by utilizing the high-temperature resistant layer, can play a role of high temperature resistance, avoids the influence of high temperature on the movable joint in summer, utilizes the low temperature resistant layer, can play a role of low temperature resistance, avoids the influence of low temperature on the movable joint in winter, utilizes the second corrosion-resistant layer, can further improve the corrosion resistance of union, solve present PPR union corrosion resistance not good, lead to life weak point, the problem of not being convenient for people to use.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application, and in which:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the lower body structure of the present invention;

fig. 3 is a schematic structural diagram of the functional layer of the present invention.

In the figure: 1. a lower body; 2. loose-joint external screw threads; 3. an upper body; 4. a coating layer; 5. a functional layer; 51. a wear layer; 52. a first corrosion-resistant layer; 53. a high temperature resistant layer; 54. a low temperature resistant layer; 55. a second corrosion-resistant layer.

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.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", and the like are to be construed broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; 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 in specific cases to those skilled in the art.

The utility model discloses a lower body 1, loose joint outer screw 2, go up body 3, dope layer 4, functional layer 5, wearing layer 51, first corrosion-resistant layer 52, high temperature resistant layer 53, low temperature resistant layer 54 and second corrosion-resistant layer 55 part are the parts that general standard spare or technical field personnel know, and its structure and principle all are this technical staff and all can learn through the technical manual or learn through conventional experimental method.

Referring to fig. 1-3, a PPR loose joint comprises a lower body 1, a loose joint outer thread 2 and an upper body 3, the lower body 1, the loose joint outer thread 2 and the upper body 3 are combined into the PPR loose joint, the lower body 1 comprises a coating layer 4 and a functional layer 5, the coating layer 4 is coated on the outer surface of the functional layer 5, the functional layer 5 comprises a wear-resistant layer 51, a first corrosion-resistant layer 52, a high temperature-resistant layer 53, a low temperature-resistant layer 54 and a second corrosion-resistant layer 55, the wear-resistant layer 51 is located on the outer surface of the first corrosion-resistant layer 52, the coating layer 4 is epoxy resin paint, the wear-resistant layer 51 is nylon engineering plastic, the first corrosion-resistant layer 52 is located on the outer surface of the high temperature-resistant layer 53, the first corrosion-resistant layer 52 is ethylene propylene plastic, the high temperature-resistant layer 53 is polyether ether ketone plastic, the high temperature-resistant layer 53 is located on the outer surface of the low temperature-resistant layer 54, the low temperature-resistant layer 54, the second corrosion-resistant layer 55 is made of polytetrafluoroethylene plastic, the thicknesses of the wear-resistant layer 51, the high-temperature-resistant layer 53 and the second corrosion-resistant layer 55 are equal, the thicknesses of the first corrosion-resistant layer 52 and the low-temperature-resistant layer 54 are equal, the thickness of the wear-resistant layer 51 is two thirds of the thickness of the first corrosion-resistant layer 52, the lower body 1, the loose joint outer thread 2 and the upper body 3 are made of the same material, and the coating layer 4 can play a role in corrosion resistance and prevent the loose joint from being corroded in the using process, the wear-resistant layer 51 can play a role in wear resistance and prevent threads from being worn off due to the abrasion of the loose joint, so that the service life of the loose joint is prolonged, the first corrosion-resistant layer 52 can play a role in corrosion resistance and enable the loose joint to still have good coating layer performance after the loose joint 4 falls down, the high-resistant layer 53 can play a role in high temperature resistance and prevent the loose joint from being, utilize low temperature resistant layer 54, can play low temperature resistant effect, the union receives low temperature influence when avoiding winter, utilizes second corrosion resistant layer 55, can further improve the corrosion resistance of union, has solved present PPR union corrosion resistance not good, leads to life weak point, the problem of the people's use of being not convenient for.

When in use, the coating layer 4 can play a role of corrosion prevention to prevent the movable joint from being corroded in the use process, the wear-resistant layer 51 can play a role of wear resistance to prevent the thread from being worn off due to the abrasion of the movable joint, thereby prolonging the service life of the movable joint, and the first corrosion-resistant layer 52 can play a role in corrosion resistance, so that the union has good corrosion resistance after the paint layer 4 falls off, and by utilizing the high temperature resistant layer 53, can play a role of high temperature resistance, avoids the movable joint from being influenced by high temperature in summer, and utilizes the low temperature resistant layer 54, can play a role of low temperature resistance, and avoids the influence of low temperature on the movable joint in winter, and by utilizing the second corrosion-resistant layer 55, can further improve the corrosion resistance of union, solve present PPR union corrosion resistance not good, lead to life weak point, the problem of not being convenient for people to use.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a PPR loose joint, includes body (1), loose joint outer screw (2) and last body (3) down, its characterized in that: the PPR loose joint is formed by combining the lower body (1), the loose joint outer thread (2) and the upper body (3), the lower body (1) comprises a coating layer (4) and a functional layer (5), the coating layer (4) is coated on the outer surface of the functional layer (5), the functional layer (5) comprises a wear-resistant layer (51), a first corrosion-resistant layer (52), a high-temperature-resistant layer (53), a low-temperature-resistant layer (54) and a second corrosion-resistant layer (55), the wear-resistant layer (51) is located on the outer surface of the first corrosion-resistant layer (52), the first corrosion-resistant layer (52) is located on the outer surface of the high-temperature-resistant layer (53), the high-temperature-resistant layer (53) is located on the outer surface of the low-temperature-resistant layer (54), and the low-temperature-resistant layer (54) is located on the outer surface of the second corrosion-resistant.

2. The PPR union of claim 1, wherein: the coating layer (4) is epoxy resin paint, and the wear-resistant layer (51) is nylon engineering plastic.

3. The PPR union of claim 1, wherein: the first corrosion-resistant layer (52) is fluorinated ethylene propylene plastic, and the high-temperature-resistant layer (53) is polyether ether ketone plastic.

4. The PPR union of claim 1, wherein: the low temperature resistant layer (54) is low pressure polyethylene and the second corrosion resistant layer (55) is polytetrafluoroethylene plastic.

5. The PPR union of claim 1, wherein: the thickness of the wear-resistant layer (51), the thickness of the high-temperature-resistant layer (53) and the thickness of the second corrosion-resistant layer (55) are equal, the thickness of the first corrosion-resistant layer (52) and the thickness of the low-temperature-resistant layer (54) are equal, the thickness of the wear-resistant layer (51) is two thirds of the thickness of the first corrosion-resistant layer (52), and the lower body (1), the loose joint outer bolt (2) and the upper body (3) are made of the same material.