CN212718661U

CN212718661U - Plugging air bag for pipeline detection

Info

Publication number: CN212718661U
Application number: CN202021494265.9U
Authority: CN
Inventors: 唐飞
Original assignee: Shanghai Lisheng Construction Engineering Co ltd
Current assignee: Shanghai Lisheng Construction Engineering Co ltd
Priority date: 2020-07-25
Filing date: 2020-07-25
Publication date: 2021-03-16
Anticipated expiration: 2030-07-25

Abstract

The utility model relates to a shutoff gasbag is used in pipeline inspection, it include the gasbag body and set up in the business turn over gas head of gasbag body one end, demountable installation has barrier mechanism on the gasbag body, barrier mechanism includes the base, blocks piece and elastic component, the base set up in the gasbag body is kept away from the one end of business turn over gas head, it passes through to block the piece the elastic component set up in the base is kept away from one side of gasbag body. This application has the chance that can reduce sharp objects such as glass and stone and gasbag body direct contact to it inlays the condition emergence that punctures the shutoff gasbag even to reduce sharp object, has prolonged the life of shutoff gasbag.

Description

Plugging air bag for pipeline detection

Technical Field

The application relates to the technical field of expansion plugging air bags, in particular to a plugging air bag for pipeline detection.

Background

The plugging air bag is called a water plugging air bag and is used for water plugging. The plugging air bag is made of high-quality rubber and a fiber reinforced layer after vulcanization. The plugging air bag has good expansion resistance, elasticity and flexibility, and can be used under various working conditions. And the method is simple to operate, has good aging resistance and long service life.

The pipeline plugging air bag mainly comprises an air bag, an air inlet and outlet connector, a pressure gauge, a 6-meter long special air pressure rubber pipe and an inflating tool, wherein the inflating connector is arranged at one end of the air bag. When the pipe section plugging device is used, one end of the air pressure rubber pipe is connected with an inflation connector of the air bag, the other end of the air pressure rubber pipe is connected with an air outlet of an inflation tool, the plugging air bag is expanded through an inflation method, when the air pressure in the plugging air bag meets the specified requirement, the plugging air bag fills the whole section of the pipeline, water leakage is plugged through the friction force generated by the wall of the plugging air bag and the pipeline, and therefore the purpose that water seepage does not exist in the target pipe section is achieved. The pipeline water plugging air bag is particularly suitable for maintenance test work such as a water closing test, an air closing test, leakage point searching, temporary water plugging in pipeline maintenance and the like after a drainage pipeline is sealed.

With respect to the related art among the above, the inventors consider that the following technical drawbacks exist: the fluid in the pipeline to be detected usually contains a lot of sundries, including sharp objects such as glass and stones, and the fluid pressure in the pipeline can drive the sharp objects to move towards one end of the plugging air bag, so that the sharp objects are embedded on the plugging air bag and even pierce the plugging air bag, and the plugging air bag cannot be used. For this reason, further improvement is awaited.

SUMMERY OF THE UTILITY MODEL

In order to solve the sharp thing in the pipeline and inlay on the shutoff gasbag and pierce even the shutoff gasbag and lead to the unable problem of using of shutoff gasbag, this application provides a pipeline detects with shutoff gasbag.

The application provides a shutoff gasbag for pipeline inspection adopts following technical scheme:

the utility model provides a shutoff gasbag is used in pipeline inspection, include the gasbag body and set up in the business turn over gas head of gasbag body one end, demountable installation has barrier mechanism on the gasbag body, barrier mechanism includes the base, blocks piece and elastic component, the base set up in the gasbag body is kept away from the one end of business turn over gas head, block the piece pass through the elastic component set up in the base is kept away from one side of gasbag body.

Adopt above-mentioned technical scheme, will block piece demountable installation on the gasbag body through base and elastic component, during the use, block that the piece can block sharp objects such as glass in the fluid, stone, reduce sharp objects such as glass and stone and the chance of gasbag body direct contact to it inlays the condition emergence that the shutoff gasbag is punctured even to reduce sharp object, has prolonged the life of shutoff gasbag.

Preferably, the one end fixedly connected with installation piece that the gas business turn over head is kept away from to the gasbag body, the locking groove has been seted up to the one side that the installation piece was kept away from the gasbag body, the base is close to one side of gasbag body be provided with the locking portion of locking groove looks adaptation.

By adopting the technical scheme, the blocking mechanism is detachably mounted on the airbag body by arranging the mounting block, the locking groove and the locking portion, so that the blocking mechanism can be cleaned or replaced according to the abrasion condition of the blocking block, the process is quick and convenient, and the working efficiency of operators is improved.

Preferably, one side of the blocking block, which is far away from the base, is inwards recessed along the contour line of the blocking block to form a buffer groove.

By adopting the technical scheme, the pressure of the fluid to the barrier block can be reduced by arranging the buffer groove, so that the situation that the working process is influenced by the deviation caused by the impact force of the fluid on the air bag body is reduced.

Preferably, the notch of the buffer tank is provided with an isolation net.

By adopting the technical scheme, sharp objects such as glass, stones and the like in the fluid can be isolated by arranging the isolation net, and meanwhile, the isolation net has a certain buffering effect on the sharp objects such as the glass, the stones and the like.

Preferably, the stopper is made of rubber material, and the edge of the stopper is bent towards the direction far away from the airbag body to form the antifriction part.

By adopting the technical scheme, the rubber has the elastic pressure-resistant characteristic, when the plugging air bag needs to be taken out of the pipeline after the use is finished, the plugging air bag is radially reduced due to deflation, and the peripheral side of the abrasion reducing part is kept in contact with the inner wall of the pipeline, so that the possibility that the surface of the plugging air bag is abraded in the moving process is reduced, and the service life of the plugging air bag is prolonged.

Preferably, one end of the airbag body, which is provided with the air inlet and outlet head, is provided with a plurality of rollers.

By adopting the technical scheme, the rollers are arranged, so that an operator can move the plugging air bag conveniently, the labor intensity of the operator is reduced, and the working efficiency of accidental operation is improved.

Preferably, a plurality of annular protrusions for increasing the friction force between the airbag body and the inner wall of the pipeline are arranged on the outer surface of the airbag body.

Adopt above-mentioned technical scheme, through setting up annular protrusion, increased the frictional force between shutoff gasbag and the pipeline inner wall, reduce the shutoff gasbag and the possibility that the skew appears in the use, simultaneously, annular protrusion has also reduced the degree of wear in the shutoff gasbag outside to a certain extent, has prolonged the life of shutoff gasbag.

Preferably, the inner wall of the locking groove and the outer side of the locking portion are provided with magnetic members which attract each other.

By adopting the technical scheme, the locking part is stably limited in the locking groove by arranging the magnetic part, and the possibility that the blocking mechanism falls off from the airbag body in the use process is reduced.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by arranging the base, the elastic piece and the blocking block, when the plugging air bag is used, the blocking block can block sharp objects such as glass, stones and the like in fluid, and the probability that the sharp objects are in direct contact with the plugging air bag is reduced, so that the possibility that the plugging air bag is punctured by the sharp objects in the using process is reduced, and the service life of the plugging air bag is prolonged;

2. through setting up antifriction portion and annular arch, reduced the shutoff gasbag in the use possibility by the wearing and tearing, also prolonged the life of shutoff gasbag to a certain extent.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is an exploded schematic view of an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a locking groove and a locking part in the embodiment of the application.

Description of reference numerals: 1. an airbag body; 11. mounting blocks; 111. a locking groove; 12. an annular projection; 13. a roller; 15. a spring; 2. an air inlet and outlet head; 3. a base; 31. a locking portion; 311. a connecting rod; 312. a locking head; 313. a locking bar; 4. a blocking block; 41. a buffer tank; 42. an anti-attrition section; 5. an isolation net; 6. fixing the ear; 7. and (4) connecting the blocks.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a plugging air bag for pipeline detection. Referring to fig. 1 and 2, the blocking airbag for pipeline detection includes an airbag body 1 and a stopper mechanism.

When the plugging air bag is not inflated, the whole appearance of the air bag body 1 is columnar. The center of one end face of the air bag body 1 is provided with a needle-shaped air inlet and outlet head 2.

Referring to fig. 2 and 3, a blocking mechanism is provided at the other end of the airbag body 1, and the blocking mechanism includes a base 3, a blocking piece 4, and an elastic member, which is a plurality of springs 15 in this embodiment.

The one end fixedly connected with installation piece 11 of business turn over gas head 2 is kept away from at the shutoff gasbag, and installation piece 11 sets up with gasbag body 1 is coaxial. Base 3 demountable installation is in one side that gasbag body 1 was kept away from to installation piece 11, and many springs 15 are along base 3's centre of a circle circumference array in base 3 one side of keeping away from installation piece 11, and many springs 15's one end and base 3 fixed connection, the other end with block one side fixed connection that piece 4 is close to the base, will block piece 4 fixed connection on base 3 through many springs 15.

Referring to fig. 2 and 3, a locking portion 31 is disposed on a side of the base 3 close to the mounting block 11, and a locking groove 111 adapted to the locking portion 31 is formed on a side of the mounting block 11 away from the airbag body 1. The number of the locking grooves 111 is three, and the three locking grooves 111 are arranged along the circle center circumference array of the base 3.

Referring to fig. 3, the locking part 31 includes a connecting rod 311 and a ball-shaped locking head 312, one end of the connecting rod 311 is fixedly connected to the base 3, and the other end is fixedly connected to the locking head 312. The cross section of the locking groove 111 is arc-shaped, locking strips 313 are arranged on two opposite sides of the upper part of one end of the locking groove 111 along the extending direction of the locking groove 111, the distance between the locking strips 313 and the other end of the locking groove 111 is slightly larger than the diameter of the locking head 312, and the distance between the two locking strips 313 is smaller than the diameter of the locking head 312.

When the mounting is performed, the locking portion 31 is vertically extended into the locking groove 111 from the end of the locking groove 111 far from the locking strip 313, the locking head 312 is abutted against the bottom of the locking groove 111, and then the locking portion 31 is rotated in the direction approaching the locking strip 313, so that the connecting rod 311 is positioned between the two locking strips 313 and the locking head 312 is engaged with the bottom of the locking groove 111, thereby detachably mounting the base 3 on the mounting block 11.

In order to reduce the possibility that the blocking mechanism will fall off the airbag body 1 during use, mutually attracted magnetic pieces are arranged on the inner wall of the locking groove 111 and the outer side of the locking part 31, and the magnetic pieces are mutually attracted magnet blocks in the embodiment.

Referring to fig. 2, in order to reduce the pressure of the fluid to the stopper 4, a buffer groove 41 recessed inward along the contour line of the stopper 4 is provided at a side of the stopper 4 away from the base 3, and an isolation net 5 is provided at a notch of the buffer groove 41.

The stopper 4 in this embodiment is made of rubber, and the rubber has elastic pressure-resistant characteristics. After the detection is finished, when the plugging air bag is taken out of the pipeline, the plugging air bag is radially reduced due to deflation, and in order to reduce the possibility that the surface of the plugging air bag is abraded in the moving process, the edge of the stop block 4 is bent towards the direction far away from the air bag body 1 to form the antifriction part 42.

Referring to fig. 2, in order to increase the frictional force between the plugging balloon and the inner wall of the duct, a plurality of annular protrusions 12 are provided on the circumferential side of the balloon body 1, and the plurality of annular protrusions 12 are spaced apart in the extending direction of the balloon body 1.

In order to facilitate the movement of the plugging air bag by an operator, a roller 13 is arranged at one end of the plugging air bag, which is provided with the air inlet/outlet head 2. The gyro wheel 13 passes through connecting block 7 installation, and connecting block 7 passes through bolt fixed connection at the terminal surface of gasbag body 1, and one side that gasbag body 1 was kept away from to connecting block 7 is provided with fixed ear 6, and gyro wheel 13 rotates to be connected on fixed ear 6.

The implementation principle of the plugging air bag for pipeline detection in the embodiment of the application is as follows: the air inlet and outlet head 2 of the pipeline plugging air bag is connected with the inflating head of an inflator pump, the plugging air bag is inflated, and after the plugging air bag is inflated to specified detection air pressure, whether each part of the plugging air bag leaks air or not is checked. The pipeline needing to be detected is opened, the plugging air bag is placed from the pipeline inlet, the blocking mechanism of the pipeline plugging air bag faces to the side far away from the pipeline inlet, the plugging air bag is moved to the designated position, the air is inflated to the plugging air bag through the inflating pump, and the plugging air bag is expanded to be completely attached to the inner wall of the pipeline, so that the purpose of temporarily sealing the pipeline is achieved. In the detection process, impurities in the pipeline fluid are isolated by the isolation net 5 in the blocking mechanism, so that the chance that sharp objects such as glass and stones directly contact the pipeline is reduced. After the detection is finished, the gas inlet and outlet head 2 is opened, gas in the plugging air bag is discharged, the plugging air bag is separated from the inner wall of the pipeline, the accessories are detached, and the plugging air bag is placed after being cleaned and checked completely.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a pipeline detects uses shutoff gasbag, including gasbag body (1) and set up in business turn over gas head (2) of gasbag body (1) one end, its characterized in that: demountable installation has barrier mechanism on gasbag body (1), barrier mechanism includes base (3), blocks piece (4) and elastic component, base (3) set up in gasbag body (1) is kept away from the one end of business turn over gas head (2), block piece (4) pass through the elastic component set up in base (3) is kept away from one side of gasbag body (1).

2. The plugging air bag for detecting the pipeline according to claim 1, wherein: keep away from gasbag body (1) the one end fixedly connected with installation piece (11) of business turn over gas head (2), installation piece (11) are kept away from one side of gasbag body (1) has seted up locking groove (111), base (3) are close to one side of gasbag body (1) be provided with locking portion (31) of locking groove (111) looks adaptation.

3. The plugging air bag for detecting the pipeline according to claim 1, wherein: one side of the blocking block (4) far away from the base (3) is inwards sunken along the contour line of the blocking block (4) to form a buffer groove (41).

4. The plugging air bag for detecting the pipeline according to claim 3, wherein: and an isolation net (5) is arranged at the notch of the buffer groove (41).

5. The plugging air bag for detecting the pipeline according to claim 1, wherein: the stop block (4) is made of rubber materials, and the edge of the stop block (4) is bent towards the direction far away from the airbag body (1) to form an antifriction part (42).

6. The plugging air bag for detecting the pipeline according to claim 1, wherein: the air bag body (1) is provided with a plurality of rollers (13) at one end of the air inlet and outlet head (2).

7. The plugging air bag for detecting the pipeline according to claim 1, wherein: the outer surface of the air bag body (1) is provided with a plurality of annular bulges (12) used for increasing the friction force between the air bag body (1) and the inner wall of the pipeline.

8. The plugging air bag for detecting the pipeline according to claim 2, wherein: the inner wall of the locking groove (111) and the outer side of the locking part (31) are provided with magnetic pieces which attract each other.