CN217302117U

CN217302117U - Sealing plug for pressure resistance test of flexible composite pipe

Info

Publication number: CN217302117U
Application number: CN202220212725.7U
Authority: CN
Inventors: 夏争恒; 张耀; 陈平; 卢旭升; 陈江慧
Original assignee: Shaanxi Weixing New Building Materials Co ltd
Current assignee: Shaanxi Weixing New Building Materials Co ltd
Priority date: 2022-01-26
Filing date: 2022-01-26
Publication date: 2022-08-26
Anticipated expiration: 2032-01-26

Abstract

The utility model discloses a sealing plug for pressure resistance test of a flexible composite pipe, which comprises a sealing plug groove, a sealing plug inner groove, a sealing plug metric inner thread, a straight thread hole and a taper thread hole; the inner groove of the sealing plug is embedded in the sealing plug, the inner groove of the sealing plug is connected with the pipe fitting through a metric inner thread of the sealing plug, the metric inner thread of the sealing plug is connected with an outer thread of the end part of the pipe fitting, and the inner groove of the sealing plug is connected with a sealing ring at the end part of the pipe fitting. The sealing washer thickness direction has half in the pipe fitting tip recess, and half in addition screws through pipe fitting and sealed end cap metric system internal thread for the sealing washer is compressed tightly between the two, and sealing washer outer wall is hugged closely to sealed end cap inner groovy inner wall, and difficult inflation when having protected the sealing washer effectively to receive high pressure during the water injection is suppressed and is broken.

Description

Sealing plug for pressure resistance test of flexible composite pipe

Technical Field

The utility model relates to a composite tube field of making especially relates to a sealed end cap is used in withstand voltage test of flexible composite tube.

Background

In the actual pressing process of the pipe, the sealing ring is easy to break through high-temperature plasticity deterioration during hot water test, so that the hot water pressing test result is unsatisfactory, and the test reliability is influenced. The performance of the sealing ring cannot be effectively exerted after the sealing plug is actually screwed down, the screwing degree of the sealing ring cannot be guaranteed after the sealing plug is screwed down, and the phenomena of folds and the like exist.

At present, most manufacturers use end plates welded at the ends of pipe fittings for sealing treatment, have high requirements on welding technology, and need subsequent welding technology inspection and evaluation, thereby influencing the overall time schedule of the test.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a withstand voltage test of flexible composite tube is with sealed end cap both can use sealed end cap for a long time, can play the purpose of protection sealing washer again.

The utility model provides a withstand voltage test of flexible composite pipe is with sealed end cap, include: the sealing plug comprises a sealing plug groove, a sealing plug inner groove, a sealing plug metric internal thread, a straight threaded hole and a conical threaded hole; the inner groove of the sealing plug is embedded in the sealing plug, the inner groove of the sealing plug is connected with the pipe fitting through a metric inner thread of the sealing plug, the metric inner thread of the sealing plug is connected with an outer thread of the end part of the pipe fitting, and the groove of the sealing plug is connected with a sealing ring at the end part of the pipe fitting.

Furthermore, the inner wall of the groove of the sealing plug is tightly attached to the outer wall of the sealing ring.

Furthermore, the conical threaded hole is connected with a water injection high-pressure pipe joint, and the straight threaded hole is connected with an external water injection joint.

Furthermore, one half of the thickness direction of the sealing ring is arranged in a groove at the end part of the pipe fitting, and the other half of the thickness direction of the sealing ring is screwed through metric internal threads of the pipe fitting and the sealing plug, so that the sealing ring is pressed between the pipe fitting and the sealing plug.

In summary, the sealing plug for the pressure resistance test of the flexible composite pipe provided by the utility model has the advantages of simple structure, convenient use, difficult abrasion, repeated use, convenient installation and the like,

drawings

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

Fig. 2 is a sectional view of fig. 1.

Description of reference numerals: the sealing plug comprises a sealing plug groove 1, a sealing plug inner groove 2, a sealing plug metric inner thread 3, a straight threaded hole 4, a conical threaded hole 5 and a pipe fitting 6.

Detailed Description

The invention will be described in further detail with reference to the following drawings and embodiments:

the embodiment of the utility model provides a withstand voltage test of flexible composite pipe is with sealed end cap, the device are used for blasting for flexible composite pipe and suppress experimental, include: sealed end cap recess 1, sealed end cap inner groovy 2, sealed end cap metric system internal thread 3, straight screw hole 4, awl screw hole 5, pipe fitting 6, wherein, sealed end cap inner groovy 2 meets through sealed end cap metric system internal thread 3 with pipe fitting 6, sealed end cap inner groovy 2 is inlayed inside sealed end cap. Under the high-pressure operating condition of water injection, the sealing ring that receives the pressure inflation is wrapped up in to sealed end cap inner groovy 2 outside terminal surface and pipe fitting recess terminal surface, prevents that the sealing ring from tearing, and its main function is in order to protect the sealing ring.

Furthermore, the metric internal thread 3 of the sealing plug is connected with the external thread at the end part of the pipe fitting to play a role in screwing and connecting. The crescent wrench is required to be used when the sealing plug is screwed on the end part of the pipe fitting, and the sealing plug is screwed on the end part of the pipe fitting by the crescent wrench and the groove 1 on the sealing plug. The crescent wrench can directly buy a finished product, the size and the depth of the sealing plug groove 1 are determined according to national standards, and the crescent wrench is convenient to match with a standard crescent wrench.

Further, sealed end cap inner groovy 2 is connected with pipe fitting tip sealing washer, and sealing washer thickness direction respectively has half in pipe fitting tip recess and sealed end cap recess, when the water injection is suppressed, and the sealing washer takes place small inflation by the high pressure, and sealing washer thickness direction all is in pipe fitting tip recess and sealed end cap recess this moment, and both are wrapping up the sealing washer, and axial and radial all have the power that sealed end cap and pipe fitting tip bore weight this moment, have effectively protected the sealing washer not damaged by the high pressure.

Further, when in actual use, the conical threaded hole 5 is connected with a water injection high-pressure pipe, and the straight threaded hole 4 is connected with an external water injection end. Pull down the high-pressure tube when experimental tubular product inside water injection, awl screw thread 5 plays better carminative effect, and during follow-up suppress, conversion head and high-pressure water injection union coupling in the middle of awl screw hole 5 uses, and at this moment, straight screw hole 4 uses the bolt tightening sealed, for connect to suppress the experiment and make the prerequisite prepare down.

In summary, the preferred embodiments of the present invention are described herein, not intended to limit the scope of the present invention, but all equivalent variations and modifications made according to the content of the present application should be considered as the technical scope of the present invention.

Claims

1. A sealing plug for a pressure resistance test of a flexible composite pipe is characterized by comprising a sealing plug groove (1), a sealing plug inner groove (2), a sealing plug metric internal thread (3), a straight threaded hole (4) and a conical threaded hole (5); the sealing plug is characterized in that the inner groove (2) of the sealing plug is embedded inside the sealing plug, the inner groove (2) of the sealing plug is connected with the pipe fitting (6) through a metric inner thread (3) of the sealing plug, the metric inner thread (3) of the sealing plug is connected with an outer thread of the end part of the pipe fitting, and the inner groove (2) of the sealing plug is connected with a sealing ring at the end part of the pipe fitting.

2. The sealing plug for the pressure resistance test of the flexible composite pipe according to claim 1, wherein the inner wall of the groove (2) in the sealing plug is tightly attached to the outer wall of the sealing ring.

3. The sealing plug for the pressure resistance test of the flexible composite pipe according to claim 1, wherein the conical threaded hole (5) is connected with a water injection high-pressure pipe joint, and the straight threaded hole (4) is connected with an external water injection joint.

4. The sealing plug for the pressure resistance test of the flexible composite pipe according to claim 1, wherein one half of the sealing ring in the thickness direction is arranged in the groove at the end part of the pipe, and the other half of the sealing ring is screwed through the pipe (6) and the metric internal thread (3) of the sealing plug, so that the sealing ring is compressed between the pipe and the sealing plug.