CN216479607U

CN216479607U - Air bag type gas pipeline plugging device

Info

Publication number: CN216479607U
Application number: CN202122244194.8U
Authority: CN
Inventors: 王一君; 许梦玉; 邓井川; 姜海; 孙德芝; 崔斌
Original assignee: Beijing Gas Group Co Ltd
Current assignee: Beijing Gas Group Co Ltd
Priority date: 2021-09-14
Filing date: 2021-09-14
Publication date: 2022-05-10
Anticipated expiration: 2031-09-14

Abstract

The utility model discloses an air bag type gas pipeline plugging device which comprises an inflation tube, a one-way valve and an air bag, wherein a power tube is sleeved at the upper half part of the inflation tube, a sliding block sleeved on the inflation tube is arranged at the lower end of the power tube, and a fixed block is arranged at the lower end of the inflation tube; the air inlet end of the one-way valve is connected with an inflation joint, and the air outlet end of the one-way valve is connected with an inflation pipe; the top of the air bag is fixedly connected with the peripheral wall of the sliding block in a sealing way, the bottom of the air bag is fixedly connected with the peripheral wall of the fixed block in a sealing way, and the part of the inflation tube, which is positioned in the inner cavity of the air bag, is provided with an air outlet. It has the advantages of simple structure, convenient use and safe and quick plugging.

Description

Air bag type gas pipeline plugging device

Technical Field

The utility model relates to the technical field of pipeline plugging, in particular to an air bag type gas pipeline plugging device.

Background

With the development of gas industry and the increase of the number of pipeline equipment, and the corrosion and aging of original pipelines and equipment, daily maintenance and repair and technical improvement projects are gradually increased, mainly relating to the leakage and repair and replacement of external line transmission and distribution pipelines, the maintenance and modification of end equipment of a pipe network and the like.

The technology for plugging the pipeline without stopping transportation is a gas pipeline operation mode which is safe, reliable, convenient to operate, economical, practical, efficient, energy-saving and strong in randomness, becomes an operation technology with great significance in the gas industry, and has great effects on guaranteeing public benefits and public safety, guaranteeing stable gas supply of cities and improving economic benefits. At present, the operation modes of pipeline emergency repair mainly comprise the following two modes: the first is manual pressure reduction and lifting operation, and the second is mechanical pressure reduction and pneumatic operation. However, the first operation method has high operation cost, limited operation time and certain operation danger; the second operation mode has longer operation time, larger equipment volume, lower one-time plugging success rate and larger damage to the pipeline. Therefore, the device with simple structure and convenient use is needed to carry out plugging operation without stopping transportation.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems of low plugging efficiency and high plugging difficulty of the existing gas pipeline, the utility model innovatively provides the air bag type gas pipeline plugging device, and the air bag type gas pipeline plugging device effectively solves the problems from the aspect of never stopping gas supply.

In order to achieve the technical purpose, the utility model discloses an air bag type gas pipeline plugging device which comprises an inflation tube, a one-way valve and an air bag, wherein the upper half part of the inflation tube is sleeved with a power tube, the lower end of the power tube is provided with a sliding block sleeved on the inflation tube, the lower end of the inflation tube is provided with a fixed block, the air inlet end of the one-way valve is connected with an inflation connector, the air outlet end of the one-way valve is connected with the inflation tube, the top of the air bag is fixedly connected with the peripheral wall of the sliding block in a sealing manner, the bottom of the air bag is fixedly connected with the peripheral wall of the fixed block in a sealing manner, and the part of the inflation tube, which is positioned in the inner cavity of the air bag, is provided with an air outlet.

Further, the air bag type gas pipeline plugging device is characterized in that the power pipe is in sealing sliding fit with the outer peripheral wall of the gas filling pipe, the power pipe and the sliding block are integrally formed, a plurality of sealing grooves are distributed on the inner wall of the power pipe at intervals, and an O-shaped sealing ring is arranged in each sealing groove.

Further, the gas bag type gas pipeline plugging device is characterized in that a first mounting groove is formed in the outer peripheral wall of the upper half portion of the sliding block, a second mounting groove is formed in the outer peripheral wall of the lower half portion of the fixing block, a first annular flange which is matched with the first mounting groove and extends inwards is arranged at the upper end of the inner wall of the gas bag, a second annular flange which is matched with the second mounting groove and extends inwards is arranged at the lower end of the inner wall of the gas bag, the upper end of the gas bag is hermetically bonded in the first mounting groove through the first annular flange, and the lower end of the gas bag is hermetically bonded in the second mounting groove through the second annular flange.

Further, the lower end of the air bag is sleeved with a lower pressing sleeve, one end of the lower pressing sleeve is open, the other end of the lower pressing sleeve is closed, the lower end of the fixed block and the lower end of the air bag are pressed in the lower pressing sleeve from bottom to top through the open end of the lower pressing sleeve, the upper end of the air bag is sleeved with an upper pressing sleeve, one end of the upper pressing sleeve is open, the other end of the upper pressing sleeve is provided with a through hole, the upper pressing sleeve is sleeved on the power pipe through the through hole, and the upper pressing sleeve presses the upper end of the sliding block and the upper end of the air bag in the upper pressing sleeve from top to bottom through the open end.

Further, the airbag type gas pipeline plugging device is characterized in that a plurality of spring pieces which are uniformly distributed along the circumferential direction are arranged between the fixed block and the sliding block, two ends of each spring piece are correspondingly fixedly connected with the fixed block and the sliding block, threads are arranged on the outer circumferential wall of the upper half part of the inflation tube, and an adjusting knob is screwed on the part of the inflation tube, which penetrates out of the power tube, through the threads.

Further, the air bag type gas pipeline plugging device is characterized in that a first flange is arranged at the upper end of the sliding block, a second flange is arranged in the middle of the sliding block, the opposite side walls of the first flange and the second flange and the peripheral wall of the sliding block form the first mounting groove, a third flange is arranged at the lower end of the fixing block, a fourth flange is arranged in the middle of the fixing block, the opposite side walls of the third flange and the fourth flange and the peripheral wall of the fixing block form the second mounting groove, the lower end of the sliding block and the upper end of the fixing block are both of the same polygonal column structure, and two ends of each spring leaf are respectively fixed on edge surfaces of the sliding block and the fixing block on the same side through sunk screws.

Further, the air bag type gas pipeline plugging device is characterized in that a positioning block is sleeved on the power pipe, the positioning block is tubular, an annular cover plate connected with the positioning block into a whole is arranged in the middle of the positioning block, a positioning hole penetrating through the peripheral wall of the positioning block is formed in the upper half of the positioning block, and a positioning bolt is fixed in the positioning hole in a threaded connection mode.

Further, the utility model relates to a gas bag type gas pipeline plugging device, wherein two opposite sides of the peripheral wall of the adjusting knob are respectively provided with an adjusting wing plate integrally formed with the adjusting knob.

Further, the air bag type gas pipeline plugging device further comprises a pressure gauge and a hollow handle, wherein the pressure gauge is installed at the air inlet end of the one-way valve through a three-way joint, and the handle is installed between the inflation pipe and the one-way valve.

Further, the utility model relates to a gas bag type gas pipeline plugging device, wherein a plurality of air outlet holes are formed in the peripheral wall of the lower end of the inflation pipe, which is positioned in the inner cavity part of the gas bag.

The utility model has the beneficial effects that: the utility model can be used as special gas plugging equipment with simple structure, convenient use, safety and rapidness, is used for daily plugging operation with gas, improves the current mode of urgent repair plugging operation with gas to carry out effective plugging, improves the working efficiency, saves the time cost of operation, ensures the safety of gas plugging operation with gas, ensures safe and stable gas supply and provides technical guarantee for public benefits and public safety.

Drawings

FIG. 1 is a perspective view of a gas bag type gas pipeline plugging device of the present invention;

FIG. 2 is a front view of a gas-bag type gas pipeline plugging device of the present invention;

FIG. 3 is a cross-sectional view taken along the line of FIG. 2A-A;

FIG. 4 is a partial exploded view of a gas bag type gas pipe sealer of the present invention;

FIG. 5 is a perspective view of a fixing block in the gas bag type gas pipeline plugging device of the present invention;

FIG. 6 is a cross-sectional view of a fixing block in the gas bag type gas pipeline plugging device of the present invention;

FIG. 7 is a perspective view of a slider in the gas bag type gas pipeline plugging device of the present invention;

FIG. 8 is a cross-sectional view of a slider in the gas bag type gas pipeline plugging device of the present invention;

FIG. 9 is a sectional view of the air bag in the air bag type gas pipeline plugging device of the present invention;

fig. 10 is a perspective view of another embodiment of the gas bag type gas pipeline plugging device of the present invention.

Detailed Description

The gas-bag type gas pipeline plugging device of the utility model is explained and explained in detail below with reference to the attached drawings of the specification.

As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the utility model discloses an air bag type gas pipeline plugging device, which specifically comprises an inflation pipe 1, a one-way valve 2 and an air bag 3. The upper half part of the inflation tube 1 is sleeved with a power tube 4, and the lower end of the power tube 4 is provided with a slide block 41 sleeved on the inflation tube 1. The lower end of the inflation tube 1 is provided with a fixed block 11, the air inlet end of the one-way valve 2 is connected with an inflation joint 7, and the air outlet end of the one-way valve 2 is connected with the inflation tube 1. The top of the air bag 3 is fixedly connected with the peripheral wall of the sliding block 41 in a sealing way, the bottom of the air bag 3 is fixedly connected with the peripheral wall of the fixing block 11 in a sealing way, the part of the inflation tube 1, which is positioned in the inner cavity of the air bag 3, is provided with a plurality of air outlet holes 12, and the peripheral wall of the lower end of the inflation tube 1, which is positioned in the inner cavity of the air bag 3, is provided with a plurality of air outlet holes 12. When the plugging device is actually used, the lower end of the plugging device penetrates through the wire connecting and changing joint to extend into a fuel gas inlet pipeline, firstly, an external inflator pump is used for being connected with the inflation joint 7, gas is inflated into the air bag 3 through the inflation joint 7 and the one-way valve 2 through the air outlet 12 on the inflation tube 1, the air bag 3 is enabled to be expanded and slowly attached to the wall of the pipeline, and therefore fuel gas in the pipeline is sealed and prevented from being leaked. Because the gas filled in the air bag 3 is shapeless and can fill any space, and the air bag 3 is elastic, the structure can lead the air bag 3 to adapt to the conditions of unevenness and diversification of the pipeline wall, and can well seal the pipeline. After the plugging is completed, the plugging and re-routing operation can be realized under the conditions of no air stopping and no pressure reduction, the normal air consumption of a user is not influenced, the operation risk is reduced, the environmental pollution is avoided, and the plugging and re-routing device has strong practicability.

As shown in fig. 4 in combination with fig. 6 and 7, in order to ensure the sealing performance of the airbag 3, the power tube 4 is in sealing sliding fit with the outer peripheral wall of the inflation tube 1, and the power tube 4 and the slider 41 are integrally formed, a plurality of sealing grooves 42 are distributed at intervals on the inner wall of the power tube 4, an O-ring 44 is arranged in each sealing groove 42, and the phenomenon of air leakage is prevented through a plurality of sealing.

As shown in fig. 5 and 6 in combination with fig. 7, 8 and 9, in order to further improve the sealing performance of the airbag 3, a first mounting groove 411 is formed in the outer peripheral wall of the upper half portion of the slider 41, a second mounting groove 111 is formed in the outer peripheral wall of the lower half portion of the fixing block 11, a first annular flange 31 that matches the first mounting groove 411 and extends inward is formed at the upper end of the inner wall of the airbag 3, a second annular flange 32 that matches the second mounting groove 111 and extends inward is formed at the lower end of the inner wall of the airbag 3, the upper end of the airbag 3 is hermetically bonded in the first mounting groove 411 through the first annular flange 31, and the lower end of the airbag 3 is hermetically bonded in the second mounting groove 111 through the second annular flange 32. The lower pot head of gasbag 3 is equipped with down the compressing sleeve 33, and the one end opening other end of compressing sleeve 33 is sealed down, compressing sleeve 33 compresses tightly the lower extreme of fixed block 11 and the lower extreme of gasbag 3 in compressing sleeve 33 down from supreme time down through the open end down, the last pot head of gasbag 3 is equipped with compressing sleeve 34, the one end opening other end of going up compressing sleeve 34 is equipped with a through-hole, it establishes on power tube 4 through the through-hole cover to go up compressing sleeve 34, it compresses tightly in last compressing sleeve 34 with the upper end of slider 41 and the upper end of gasbag 3 from last to last through the open end to go up compressing sleeve 34. Through the arrangement, the upper pressing sleeve 34 and the lower pressing sleeve 33 are respectively pressed at the upper end and the lower end of the air bag 3, and the secondary sealing effect is achieved.

As shown in fig. 4, a plurality of spring strips 5 are uniformly distributed along the circumferential direction between the fixed block 11 and the slider 41, two ends of each spring strip 5 are correspondingly and fixedly connected with the fixed block 11 and the slider 41, the outer circumferential wall of the upper half part of the inflation tube 1 is provided with threads, and the part of the inflation tube 1 penetrating out of the power tube 4 is screwed with an adjusting knob 6 through the threads. And the two opposite sides of the peripheral wall of the adjusting knob 6 are respectively provided with an adjusting wing plate 61 which is integrally formed with the adjusting knob 6, so that the adjusting knob 6 can be conveniently adjusted through the adjusting wing plates 61, and the position of the adjusting knob 6 on the inflation tube 1 can be changed. Can strut gasbag 3 to pipeline pipe diameter size in advance before carrying out the shutoff through above setting. The specific operation is as follows: firstly, the adjusting knob 6 is screwed downwards, at this time, the adjusting knob 6 pushes the power tube 4 downwards, the distance between the fixed block 11 and the slider 41 is continuously reduced because the position of the fixed block 11 is unchanged, and the spring piece 5 bends outwards after being stressed (of course, the shape of the spring piece 5 can be bent outwards in advance to prevent the spring piece 5 from bending inwards, so that the air bag 3 is conveniently propped outwards), and then the air bag 3 is propped open.

As a specific optimization scheme, as shown in fig. 5 and 6 in combination with fig. 7 and 8, a first flange 412 is provided at the upper end of the slider 41, and a second flange 413 is provided at the middle part of the slider 41, so that the side walls of the first flange 412 and the second flange 413 opposite to the peripheral wall of the slider 41 form a first mounting groove 411. A third flange 112 is provided at a lower end of the fixed block 11, and a fourth flange 113 is provided at a middle portion of the fixed block 11, so that opposite side walls of the third flange 112 and the fourth flange 113 and a peripheral wall of the fixed block 11 form a second mounting groove 111. The lower end of the sliding block 41 and the upper end of the fixed block 11 are both set to be the same polygonal column structure, and two ends of each spring piece 5 are respectively fixed on the edge surface of the sliding block 41 on the same side as the fixed block 11 through the countersunk head screw 51 of each spring piece 5. Therefore, when the spring piece 5 deforms under pressure, the second flange 413 and the fourth flange 113 can limit the upper end and the lower end of the spring piece 5, and the deformation effect of the spring piece 5 is guaranteed.

As shown in fig. 1, 2, and 3 in combination with fig. 4, the power pipe 4 is further sleeved with a positioning block 45, the positioning block 45 is tubular, an annular cover plate 451 integrally connected to the positioning block 45 is disposed at the middle of the positioning block 45, a positioning hole penetrating through the peripheral wall of the positioning block 45 is disposed at the upper half of the positioning block 45, and a positioning bolt 452 is fixed in the positioning hole in a threaded manner. In practical use, after the air bag 3 reaches a designated position, the annular cover plate 451 on the positioning block 45 covers the pipeline introducing port, the positioning bolt 452 is screwed down, the part below the positioning block 45 is suspended in the pipeline, and then the plugging operation is performed, so that the plugging position is unchanged in the plugging operation process, and the plugging effect is further ensured.

As shown in fig. 1, 2, 3 and 4, the present invention further includes a pressure gauge 8 and a hollow handle 9. Wherein, manometer 8 is installed at the inlet end of check valve 2 through three way connection 81, and handle 9 is installed between gas tube 1 and check valve 2. Of course, as shown in fig. 10, the pressure gauge 8 may be installed at the air outlet end of the check valve 2 through a three-way joint 81, and the handle 9 may be installed between the inflation tube 1 and the three-way joint 81. Can conveniently hold whole device through handle 9, can observe the pressure of gasbag through manometer 8, can stop the air feed in gasbag 3 when reaching regulation numerical value through the numerical value change of observing manometer 8 in the shutoff operation.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and simplifications made in the spirit of the present invention are intended to be included in the scope of the present invention.

Claims

1. The utility model provides a gasbag formula gas pipeline plugging device which characterized in that: including gas tube (1), check valve (2) and gasbag (3), the first half cover of gas tube (1) is equipped with power tube (4), the lower extreme of power tube (4) is equipped with slider (41) of cover on gas tube (1), the lower extreme of gas tube (1) is equipped with fixed block (11), the inlet end of check valve (2) is connected with inflation joint (7), the end of giving vent to anger of check valve (2) is connected with gas tube (1), the top of gasbag (3) and the sealed fixed connection of perisporium of slider (41), the bottom of gasbag (3) and the sealed fixed connection of perisporium of fixed block (11), be equipped with venthole (12) on the part that gas tube (1) is in gasbag (3) inner chamber.

2. The gas bag type gas pipeline plugging device according to claim 1, wherein: the sealing device is characterized in that the power tube (4) is in sealing sliding fit with the peripheral wall of the inflation tube (1), the power tube (4) and the sliding block (41) are integrally formed, a plurality of sealing grooves (42) are distributed on the inner wall of the power tube (4) at intervals, and each sealing groove (42) is internally provided with an O-shaped sealing ring (44).

3. The gas bag type gas pipeline plugging device according to claim 1, wherein: be equipped with first mounting groove (411) on the periphery wall of the first half of slider (41), be equipped with second mounting groove (111) on the periphery wall of the lower half of fixed block (11), the inner wall upper end of gasbag (3) is equipped with matches and inwards extends first annular flange (31) with first mounting groove (411), the inner wall lower extreme of gasbag (3) is equipped with matches and inwards extends second annular flange (32) with second mounting groove (111), the upper end of gasbag (3) is through first annular flange (31) seal bonding in first mounting groove (411), and the lower extreme of gasbag (3) passes through second annular flange (32) seal bonding in second mounting groove (111).

4. The gas bag type gas pipeline plugging device according to claim 3, wherein: the lower pot head of gasbag (3) is equipped with down and compresses tightly cover (33), compress tightly cover (33) one end opening other end down and seal, compress tightly cover (33) down and compress tightly cover (33) through the open end from supreme lower extreme with fixed block (11) and the lower extreme of gasbag (3) down, the last pot head of gasbag (3) is equipped with and compresses tightly cover (34), the one end opening other end that compresses tightly cover (34) on is equipped with a through-hole, on compress tightly cover (34) and establish on power pipe (4) through the through-hole cover, on compress tightly cover (34) through compressing tightly in cover (34) from last open end to compressing tightly cover (34) under to the upper end with slider (41) and the upper end of gasbag (3).

5. The gas bag type gas pipeline plugging device according to claim 3, wherein a plurality of spring pieces (5) which are uniformly distributed along the circumferential direction are arranged between the fixed block (11) and the sliding block (41), two ends of each spring piece (5) are correspondingly fixedly connected with the fixed block (11) and the sliding block (41), threads are arranged on the peripheral wall of the upper half part of the inflation tube (1), and the portion, penetrated out from the power tube (4), of the inflation tube (1) is provided with the adjusting knob (6) through the threads in a screwing mode.

6. The gas bag type gas pipeline plugging device according to claim 5, wherein: the upper end of slider (41) is equipped with first flange (412), and the middle part of slider (41) is equipped with second flange (413), the relative lateral wall of first flange (412) and second flange (413) and the perisporium of slider (41) form first mounting groove (411), the lower extreme of fixed block (11) is equipped with third flange (112), and the middle part of fixed block (11) is equipped with fourth flange (113), the relative lateral wall of third flange (112) and fourth flange (113) and the perisporium of fixed block (11) form second mounting groove (111), the lower extreme of slider (41) and the upper end of fixed block (11) are the same polygon prism structure, every spring leaf (5) are fixed the both ends of spring leaf (5) respectively on the arris face of slider (41) and fixed block (11) homonymy through countersunk screw (51).

7. The gas bag type gas pipeline plugging device according to claim 1, wherein: the power tube (4) is sleeved with a positioning block (45), the positioning block (45) is tubular, an annular cover plate (451) connected with the positioning block (45) into a whole is arranged in the middle of the positioning block (45), a positioning hole penetrating through the peripheral wall of the positioning block (45) is formed in the upper half part of the positioning block, and a positioning bolt (452) is fixed in the positioning hole in a threaded connection mode.

8. The gas bag type gas pipeline plugging device according to claim 5, wherein: and two opposite sides of the peripheral wall of the adjusting knob (6) are respectively provided with an adjusting wing plate (61) which is integrally formed with the adjusting knob (6).

9. The gas bag type gas pipeline plugging device according to claim 1, wherein: still include manometer (8) and hollow handle (9), manometer (8) are installed at the inlet end of check valve (2) through three way connection (81), handle (9) are installed between gas tube (1) and check valve (2).

10. The gas bag type gas pipeline plugging device according to claim 1, wherein: the air outlet holes (12) are arranged on the circumferential wall of the lower end of the inflation tube (1) in the inner cavity part of the air bag (3).