CN220037846U

CN220037846U - Gas pipeline pressurizer

Info

Publication number: CN220037846U
Application number: CN202320783049.3U
Authority: CN
Inventors: 陈诚
Original assignee: Lu'an Xinao Gas Engineering Co ltd
Current assignee: Lu'an Xinao Gas Engineering Co ltd
Priority date: 2023-04-11
Filing date: 2023-04-11
Publication date: 2023-11-17
Anticipated expiration: 2033-04-11

Abstract

The utility model relates to the technical field of pipeline pressure maintaining, in particular to a gas pipeline pressure maintaining device which comprises a fixed seat, a driving assembly and a sealing cover body, wherein the driving assembly is arranged on the fixed seat and is in driving connection with the sealing cover body, one end of the driving assembly is used for driving the sealing cover body to extend into a pipeline to be pressure maintained and be in close contact with the pipeline to be pressure maintained so as to realize sealing, a group of ventilation pipe fittings are arranged on the sealing cover body and are used for being connected with an external air pressure testing device.

Description

Gas pipeline pressurizer

Technical Field

The utility model relates to the technical field of pipeline pressure maintaining, in particular to a gas pipeline pressure maintaining device.

Background

The gas is mainly conveyed to thousands of households through a special gas pipeline, in the laying construction process of a gas pipe network, the gas tightness test is required to be carried out on the pipe fitting valve subjected to butt joint, so that the butt joint point is ensured not to leak, and when the gas tightness test is carried out, the pipeline is required to be subjected to the segmented plugging, inflation and pressure maintaining test.

The existing pressure maintaining device is mainly used for plugging one end and plugging, inflating and monitoring the other end, but one end currently used for inflating and monitoring is generally fixed in a flange or hoop type, so that the sealing effect is poor, the pressure maintaining effect is poor, and more precise air tightness test cannot be performed.

Disclosure of Invention

In order to solve the problems, the utility model provides the gas pipeline pressure maintaining device which is simple in structure, reasonable in design and good in sealing pressure maintaining effect.

The technical scheme adopted by the utility model is as follows:

the utility model provides a gas pipeline pressure maintaining device, includes fixing base, drive assembly and sealed lid, drive assembly install in the fixing base, and with sealed lid drive connection, be used for the drive sealed lid one end stretch into treat the pressurize pipeline, with treat pressurize pipeline in close contact with, realize sealedly, be equipped with a set of ventilation pipe fitting on the sealed lid, a set of ventilation pipe fitting is used for being connected with outside atmospheric pressure testing arrangement.

Further, a group of ventilation pipe fittings are respectively provided with a clamping sleeve valve.

Further, the sealing cover body comprises a sealing cover, a sealing ring and a pressing cover, a guide rod is arranged on the sealing cover, a guide sleeve is arranged on the pressing cover, the guide sleeve is sleeved on the guide rod, and the sealing ring is attached to the sealing cover and located between the sealing cover and the pressing cover.

Further, the diameters of the sealing cover and the sealing ring are matched with the inner diameter of the pipeline to be pressurized, and the diameter of the pressing cover is larger than the outer diameter of the pipeline to be pressurized.

Further, a convex edge is arranged on one side, close to the plugging cover, of the pressing cover, and the convex edge is matched with the pressing cover to form a pressing groove.

Further, a sealing gasket is arranged in the pressing groove.

Further, the ventilation pipe fitting and the pressing cover are integrally formed, the plugging cover and the sealing ring are respectively provided with a through hole for the ventilation pipe fitting to pass through, and one end pipe diameter of the ventilation pipe fitting is gradually reduced and used for passing through the through holes.

The beneficial effects of the utility model are as follows:

the utility model comprises a fixed seat, a driving component and a sealing cover body, wherein the driving component is arranged on the fixed seat and is in driving connection with the sealing cover body, and is used for driving one end of the sealing cover body to extend into a pipeline to be pressurized and be in close contact with the pipeline to be pressurized so as to realize sealing.

Drawings

FIG. 1 is a schematic illustration of the connection structure of a vent tube according to some embodiments of the utility model;

FIG. 2 is a schematic cross-sectional view of some embodiments of the present utility model;

reference numerals illustrate: fixing base 1, drive assembly 2, sealed lid 3, shutoff lid 31, guide arm 311, sealing ring 32, pressfitting lid 33, guide pin bushing 331, protruding edge 332, sealing washer 333, ventilation pipe 4, cutting ferrule valve 41.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; may be mechanically coupled, directly coupled, or indirectly coupled via an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1-2, the gas pipeline pressure maintaining device in this embodiment includes a fixing seat 1, a driving component 2 and a sealing cover body 3, where the driving component 2 is installed in the fixing seat 1 and is in driving connection with the sealing cover body 3, and is used for driving one end of the sealing cover body 3 to extend into a pipeline to be pressure maintained and closely contact with the pipeline to be pressure maintained, so as to realize sealing, and a group of ventilation pipe fittings 4 are arranged on the sealing cover body 3, and a group of ventilation pipe fittings 4 are used for being connected with an external air pressure testing device.

The embodiment has simple structure and reasonable design, can realize sealing by driving the sealing cover body 3 by the driving component 2 to be in close contact with the pipeline to be pressurized, and is convenient for carry out the air seal test of the rear end by arranging a group of ventilation pipe fittings 4, and has good pressure maintaining effect.

When the pressure maintaining pipeline is specifically used, one end of the sealing cover body 3 can be placed into the pressure maintaining pipeline, power is provided by the driving assembly 2, the sealing cover body 3 is tightly abutted to the pipeline, an external air tightness testing device is connected with a group of air duct pieces 4, when air enters the pipeline from the air duct pieces 4, the sealing cover body 3 positioned in the pipeline is subjected to acting force which is abutted out of the air duct pieces, and the sealing cover body 3 is matched with the pressing force provided by the driving assembly 2, so that good sealing pressure maintaining is realized, and high-precision air tightness testing is facilitated.

In some embodiments, a set of said vent tubes 4 are each provided with a respective sleeve valve 41.

In this embodiment, the clamping sleeve valve 41 is arranged, so that the air tightness testing device is convenient to connect with an external air tightness testing device, and the air tightness testing device is simple in structure, and convenient and efficient to connect.

In some embodiments, the sealing cover 3 includes a sealing cover 31, a sealing ring 32 and a pressing cover 33, the sealing cover 31 is provided with a guide rod 311, the pressing cover 33 is provided with a guide sleeve 331, the guide sleeve 331 is sleeved on the guide rod 311, and the sealing ring 32 is attached to the sealing cover 31 and is located between the sealing cover 31 and the pressing cover 33.

Specifically, the diameters of the plugging cover 31 and the sealing ring 32 are matched with the inner diameter of the pipeline to be pressurized, and the diameter of the pressing cover 33 is larger than the outer diameter of the pipeline to be pressurized.

Specifically, a protruding edge 332 is disposed on a side of the pressing cover 33 near the plugging cover 31, and the protruding edge 332 cooperates with the pressing cover 33 to form a pressing groove.

Specifically, a sealing gasket 333 is disposed in the pressing groove.

In this embodiment, the structure setting of the sealing cover body 3 is specifically shown, when in use, the sealing cover 31 and the sealing ring 32 can be clamped into a pipeline, the pressing cover 33 is arranged on the outer side of a port of the pipeline in a covering manner, the driving component 2 provides thrust for the pressing cover 33, the sealing cover 31 is pressed towards the pressing cover 33 by the pressure generated by the gas filling, so that the sealing ring 32 is flattened to be in close contact with the inner wall of the pipeline, good sealing is achieved, if the pressure of the gas filling in the interior is insufficient, the driving component 2 can also be adopted to provide an outward pulling force, a better sealing effect is achieved, an inclined plane can be arranged at the edge of the sealing cover 31 for further increasing the flattening guidance, and the deformation guidance of the sealing ring 32 is performed, so that a better flattening contact effect is achieved, and the driving component 2 in this embodiment can adopt a group of electric cylinders.

In some embodiments, the ventilation pipe 4 and the pressing cover 33 are integrally formed, the sealing cover 31 and the sealing ring 32 are respectively provided with a through hole for the ventilation pipe 4 to pass through, and one end pipe diameter of the ventilation pipe 4 is gradually reduced and is used for passing through the through hole.

In this embodiment, in the pressure maintaining process, the position where the sealing ring 32 is provided with the through hole is flattened as well, so that the position of the through hole is in close contact with the outer wall of the ventilation pipe 4, and good sealing pressure maintaining performance is achieved.

The foregoing examples illustrate only a few embodiments of the utility model and are described in detail herein without thereby limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. The utility model provides a gas pipeline pressure maintaining device, its characterized in that includes fixing base, drive assembly and sealed lid, drive assembly install in the fixing base, and with sealed lid drive connection is used for the drive sealed lid one end stretches into in the pipeline of waiting to pressurize, with waiting to pressurize pipeline in close contact with, realizes sealedly, be equipped with a set of ventilation pipe fitting on the sealed lid, a set of ventilation pipe fitting is used for being connected with outside atmospheric pressure testing arrangement.

2. The gas pipeline pressure maintaining device according to claim 1, wherein a group of the ventilation pipe fittings are respectively provided with a clamping sleeve valve.

3. The gas pipeline pressure maintaining device according to claim 1, wherein the sealing cover body comprises a sealing cover, a sealing ring and a pressing cover, a guide rod is arranged on the sealing cover, a guide sleeve is arranged on the pressing cover, the guide sleeve is sleeved on the guide rod, and the sealing ring is attached to the sealing cover and located between the sealing cover and the pressing cover.

4. The gas pipeline pressure maintaining device according to claim 3, wherein the diameters of the sealing cover and the sealing ring are matched with the inner diameter of the pipeline to be pressure maintained, and the diameter of the pressing cover is larger than the outer diameter of the pipeline to be pressure maintained.

5. A gas pipeline pressure maintaining device according to claim 3, wherein a convex edge is arranged on one side of the pressing cover, which is close to the plugging cover, and the convex edge is matched with the pressing cover to form a pressing groove.

6. The gas pipeline pressure maintaining device according to claim 5, wherein a sealing gasket is arranged in the pressing groove.

7. The gas pipeline pressure maintaining device according to claim 3, wherein the ventilation pipe fitting and the pressing cover are integrally formed, through holes for the ventilation pipe fitting to pass through are respectively formed in the sealing cover and the sealing ring, and one end pipe diameter of the ventilation pipe fitting is gradually reduced and used for passing through the through holes.