CN211525787U

CN211525787U - Middle baking varnish joint of flexible composite high, middle and low pressure stripping pipe

Info

Publication number: CN211525787U
Application number: CN201922227421.9U
Authority: CN
Inventors: 孟宇; 潘丰娇; 张金刚
Original assignee: Hebei Heng An Tai Pipeline Co ltd
Current assignee: Hebei Heng An Tai Pipeline Co ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-09-18
Anticipated expiration: 2029-12-12

Abstract

The utility model discloses a baking finish connects in middle of flexible compound high well low pressure strip pipe, including connecting the main part, be equipped with sleeve and inner core pipe in connecting the main part, telescopic interior circle and inner core pipe's excircle all are equipped with prevents down the tooth's socket, and prevent down to be equipped with the sealing washer on the tooth's socket, all be equipped with helicitic texture on sleeve and the inner core pipe, and sleeve and inner core pipe pass through helicitic texture and be connected, the cover is equipped with ventilative circle on the helicitic texture of inner core pipe, and is equipped with the holding block on the sleeve. This stoving varnish joint in middle of flexible compound high well low pressure strip pipe can discharge the air between inner core pipe and the sleeve through ventilative circle when carrying out the connection of flexible compound hose fixed, makes the connection of flexible compound hose and joint more smooth and easy, and ventilative circle can protect the sleeve when inner core pipe and sleeve pass through threaded connection simultaneously.

Description

Middle baking varnish joint of flexible composite high, middle and low pressure stripping pipe

Technical Field

The utility model relates to a flexible composite pipe connects technical field, specifically is the baking finish joint in the middle of flexible composite high-middle-low pressure strip pipe.

Background

The flexible composite conveying pipe is a pipe fitting made of polymer composite material and used for petroleum and natural gas industries, and has the advantages of high strength, high pressure, corrosion resistance, scaling resistance, small friction coefficient, good heat preservation, good flexibility and long service life. Because the body is soft, can lead because of the momentum at the in-process of actually laying, effectively reduce disasters such as geological fault, geological crack, loess collapsibility, collecting space area to the harm of oil gas pipeline. The flexible composite conveying pipe reduces the welding cost, the flaw detection cost, the joint compensation cost and the corrosion prevention cost of the steel pipe and has better economic benefit and social benefit.

The intermediate head of the existing flexible composite high, middle and low pressure stripping pipe comprises a core pipe, a sleeve and a sealing ring, the outer circle of the core pipe is in threaded connection with the sleeve, the surface of a joint sleeve is galvanized, an anticorrosive layer is coated in the inner hole of the core pipe, the processing technology is simple, but the intermediate head of the flexible composite high, middle and low pressure stripping pipe is in the process of connecting a flexible composite hose, gas between the core pipe and the sleeve cannot be timely discharged to cause the difficulty in pushing the flexible composite hose, and meanwhile, the sleeve and the core pipe can be damaged due to unstable force holding when the sleeve and the core pipe are in threaded connection, and the reliability of the sleeve and the core pipe connection is.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a baking finish connects in the middle of flexible composite high-middle-low pressure strip pipe to solve the present market that above-mentioned background art provided flexible composite high-middle-low pressure strip pipe intermediate head when carrying out the connection of flexible composite hose, gas between core pipe and the sleeve can not in time discharge can cause the propelling movement difficulty of flexible composite hose, can lead to the sleeve to damage because the dynamics is held the shakiness when sleeve and core pipe pass through threaded connection simultaneously, be unfavorable for the problem of sleeve and core union coupling reliability.

In order to achieve the above object, the utility model provides a following technical scheme: the middle baking finish joint of the flexible composite high-middle-low pressure stripping pipe comprises a joint main body, wherein a sleeve and an inner core pipe are arranged on the joint main body, an anti-falling tooth groove is formed in the inner circle of the sleeve and the outer circle of the inner core pipe, a sealing ring is arranged on the anti-falling tooth groove, threaded structures are arranged on the sleeve and the inner core pipe, the sleeve and the inner core pipe are connected through the threaded structures, a ventilating ring is sleeved on the threaded structure of the inner core pipe, and a fastening block is arranged on the sleeve.

Preferably, the sleeve and the inner core pipe of the joint main body are uniformly sprayed with baking finish, and the inner core pipe is sprayed with anticorrosive paint.

Preferably, the threaded structure of the inner core pipe is uniformly provided with ventilation through holes, the ventilation through holes of the threaded structure of the inner core pipe are L-shaped structures, and the ventilation through holes of the L-shaped structures of the inner core pipe are ventilation through holes with side surfaces communicated with the top surface.

Preferably, the ventilation ring is of an O-shaped structure, ventilation through holes are uniformly formed in the ventilation ring, and the ventilation through holes of the ventilation ring are communicated with the ventilation through holes of the inner core pipe.

Preferably, the fastening block is of a circular ring structure, the inner circle of the fastening block is of a threaded structure, and the fastening block is connected with the sleeve through the threaded structure.

Preferably, the sealing ring is uniformly clamped between the anti-falling tooth grooves, and the anti-falling tooth grooves are formed in the inner circle of the sleeve and the outer circle of the inner core pipe.

Compared with the prior art, the beneficial effects of the utility model are that: this stoving varnish joint in middle of flexible compound high well low pressure strip pipe can discharge the air between inner core pipe and the sleeve through ventilative circle when carrying out the connection of flexible compound hose fixed, makes the connection of flexible compound hose and joint more smooth and easy, and ventilative circle can protect the sleeve when inner core pipe and sleeve pass through threaded connection simultaneously. The sleeve of the baking varnish joint in the middle of the flexible composite high, middle and low pressure stripping pipe is also connected with a fastening block through threads, and after the flexible composite hose and the joint are connected and fixed, the fastening block can be rotated to reinforce the connection between the inner core pipe and the sleeve.

Drawings

FIG. 1 is a schematic view of the connection structure of the intermediate baking varnish joint sleeve and the fastening block of the flexible composite high, medium and low pressure stripping pipe of the present invention;

FIG. 2 is a schematic view of the joint structure of the middle baking varnish of the flexible composite high, middle and low pressure stripping pipe of the present invention;

FIG. 3 is a schematic view of the three-dimensional structure of the middle baking varnish joint air permeable ring of the flexible composite high, middle and low pressure stripping pipe of the present invention;

FIG. 4 is a schematic view of the connection structure of the threaded structure and the ventilation ring of the inner core tube of the middle baking finish joint of the flexible composite high, middle and low pressure stripping tube of the present invention;

fig. 5 is an enlarged structural diagram of the part a in fig. 1 of the intermediate baking varnish joint of the flexible composite high, medium and low pressure stripping pipe of the present invention.

In the figure: 1. the joint comprises a joint main body, 2, a sleeve, 3, an inner core pipe, 4, a fastening block, 5, a sealing ring, 6, an anti-falling tooth groove, 7, a ventilation ring, 8 and a flexible composite hose.

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.

Referring to fig. 1-5, the present invention provides a technical solution: the flexible composite high, middle and low pressure stripping pipe middle baking varnish joint comprises a joint main body 1, wherein a sleeve 2 and an inner core pipe 3 are arranged on the joint main body 1, baking varnish is uniformly sprayed on the sleeve 2 and the inner core pipe 3 of the joint main body 1, and anti-corrosion coating is sprayed inside the inner core pipe 3, the structure can prevent the flexible composite hose 8 from being corroded when petroleum and the like are conveyed, the spraying baking varnish can prolong the service life of the joint main body 1, meanwhile, the structure is simple, the manufacture is convenient, an inner circle of the sleeve 2 and an outer circle of the inner core pipe 3 are both provided with anti-falling tooth grooves 6, the thread structure of the inner core pipe 3 is uniformly provided with ventilation through holes, the ventilation through holes of the thread structure of the inner core pipe 3 are L-shaped structures, the ventilation through holes of the L-shaped structures of the inner core pipe 3 are ventilation through holes communicated with the top surfaces on the side surfaces, and the ventilation through holes on the thread structure of the inner core pipe 3 can discharge compressed air, therefore, the flexible composite hose 8 can be connected and fixed with the joint main body 1 in a labor-saving manner, the ventilation ring 7 is sleeved on the thread structure of the inner core pipe 3 and can protect the connection between the sleeve 2 and the inner core pipe 3 to avoid the influence of the cracking caused by the over-screwing of the sleeve 2, the anti-falling tooth grooves 6 are provided with the sealing rings 5, the sealing rings 5 are uniformly clamped between the anti-falling tooth grooves 6, the anti-falling tooth grooves 6 are arranged on the inner circle of the sleeve 2 and the outer circle of the inner core pipe 3, the connection of the flexible composite hose 8 can be more stable through the matching of the anti-falling tooth grooves 6 between the sleeve 2 and the inner core pipe 3 and the sealing rings 5, the sleeve 2 and the inner core pipe 3 are both provided with thread structures, the sleeve 2 is connected with the inner core pipe 3 through the thread structures, the ventilation ring 7 is sleeved on the thread structure of the inner core pipe 3, the ventilation ring, and the ventilative through-hole of ventilative circle 7 communicates with each other with the ventilative through-hole of inner core pipe 3, this structure makes ventilative circle 7 and the communicating ventilative through-hole of inner core pipe 3 cooperate with the air discharge that compresses when impelling between sleeve 2 and inner core pipe 3, and be equipped with fastening block 4 on sleeve 2, fastening block 4 is the ring structure, and the interior circle of fastening block 4 is the helicitic texture, and fastening block 4 and sleeve 2 pass through the helicitic texture and be connected, this structure fastening block 4 overlaps through the screw thread and establishes in the sleeve 2 outside, can consolidate sleeve 2 and inner core pipe 3 to the connection of flexible composite hose 8 after connecting main body 1 with flexible composite hose 8, thereby make the connection of main body 1 and flexible composite hose 8 more firm and more reliable.

The working principle is as follows: when the flexible composite high, medium and low pressure stripping pipe middle baking finish joint is used, firstly, an inner core pipe 3 of a joint main body 1 is connected with a sleeve 2 through a thread structure, when the connection and fixation of a flexible composite hose 8 are carried out, the flexible composite hose 8 is respectively inserted and pushed into gaps between the sleeve 2 and the inner core pipe 3 at two ends of the joint main body 1, the flexible composite hose 8 is pushed into the joint main body 1 through an anti-falling tooth groove 6 between the sleeve 2 and the inner core pipe 3, a sealing ring 5 plays a role in sealing the connection between the joint main body 1 and the flexible composite hose 8, compressed air between the sleeve 2 and the inner core pipe 3 during the pushing process is discharged through a ventilation hole communicated with a ventilation ring 7 at the thread connection part of the inner core pipe 3, so that the flexible composite hose 8 is conveniently and labor-saving in connection and fixation, when the joint main body 1 and the flexible composite hose 8 are connected and fixed, a fastening block 4 outside the sleeve 2 is rotated to ensure that the connection between the sleeve 2 and the inner core pipe 3, thereby completing a series of works.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. Baking finish connects in the middle of flexible compound high well low pressure strip pipe, including connecting main part (1), be equipped with sleeve (2) and inner core pipe (3) on connecting main part (1), its characterized in that: the inner circle of the sleeve (2) and the outer circle of the inner core pipe (3) are both provided with anti-falling tooth grooves (6), sealing rings (5) are arranged on the anti-falling tooth grooves (6), threaded structures are arranged on the sleeve (2) and the inner core pipe (3), the sleeve (2) is connected with the inner core pipe (3) through the threaded structures, a ventilating ring (7) is sleeved on the threaded structures of the inner core pipe (3), and a fastening block (4) is arranged on the sleeve (2).

2. The intermediate baking finish joint of flexible composite high, medium and low pressure stripping pipe according to claim 1, characterized in that: the sleeve (2) of the joint main body (1) and the inner core pipe (3) are uniformly sprayed with baking varnish, and the inner core pipe (3) is sprayed with anticorrosive paint.

3. The intermediate baking finish joint of flexible composite high, medium and low pressure stripping pipe according to claim 1, characterized in that: the thread structure of the inner core pipe (3) is uniformly provided with ventilation through holes, the ventilation through holes of the thread structure of the inner core pipe (3) are L-shaped structures, and the ventilation through holes of the L-shaped structures of the inner core pipe (3) are ventilation through holes with side surfaces communicated with the top surface.

4. The intermediate baking finish joint of flexible composite high, medium and low pressure stripping pipe according to claim 3, characterized in that: the ventilation ring (7) is of an O-shaped structure, ventilation through holes are uniformly formed in the ventilation ring (7), and the ventilation through holes of the ventilation ring (7) are communicated with the ventilation through holes of the inner core pipe (3).

5. The intermediate baking finish joint of flexible composite high, medium and low pressure stripping pipe according to claim 1, characterized in that: the fastening block (4) is of a circular ring structure, the inner circle of the fastening block (4) is of a threaded structure, and the fastening block (4) is connected with the sleeve (2) through the threaded structure.

6. The intermediate baking finish joint of flexible composite high, medium and low pressure stripping pipe according to claim 1, characterized in that: the sealing ring (5) is uniformly clamped between the anti-falling tooth grooves (6), and the anti-falling tooth grooves (6) are arranged on the inner circle of the sleeve (2) and the outer circle of the inner core tube (3).