阅读说明：本技术 一种智能防爆型自动水下封堵气囊 (Intelligent explosion-proof automatic underwater plugging air bag ) 是由 孙盼 孙俊杰 尹前铖 王龙 于 2021-03-11 设计创作，主要内容包括：本发明公开了一种智能防爆型自动水下封堵气囊,包括展开机构和密封圈,其特征在于：所述密封圈套设在展开机构的外侧,所述展开机构包括安装圆盘、形变板、内撑板和外撑板,所述安装圆盘的一侧安装有固定柱和形变板,所述安装圆盘的另一侧安装有连接板,所述固定柱和连接板均安装在安装圆盘的轴心处,若干个所述形变板间隔相同的距离,所述内撑板与形变板的远离安装圆盘的一端连接,所述形变板具有一定的弧度使内撑板间的朝向均相同。本发明所述的一种智能防爆型自动水下封堵气囊,通过设置的展开机构和密封圈相互配合,提高了管道封堵的严密性和安全性,不需要给气囊充气缩短了封堵时间,节省了人力成本和人力物力的投入。(The invention discloses an intelligent explosion-proof automatic underwater plugging air bag, which comprises a deployment mechanism and a sealing ring, and is characterized in that: the sealing washer cover is established in the outside of deployment mechanism, deployment mechanism is including installation disc, deformation board, interior fagging and outer bracing plate, fixed column and deformation board are installed to one side of installation disc, the connecting plate is installed to the opposite side of installation disc, the axle center department at the installation disc is all installed to fixed column and connecting plate, a plurality of deformation board interval is the same distance, the one end of keeping away from the installation disc of interior fagging and deformation board is connected, the deformation board has certain radian and makes the orientation homogeneous phase between the interior bracing plate the same. According to the intelligent explosion-proof automatic underwater plugging air bag, the deployment mechanism and the sealing ring are matched with each other, so that the tightness and the safety of pipeline plugging are improved, the air bag does not need to be inflated, the plugging time is shortened, and the manpower cost and the investment of manpower and material resources are saved.)

1. The utility model provides an automatic shutoff gasbag under water of explosion-proof type of intelligence, includes deployment mechanism and sealing washer, its characterized in that: the sealing ring sleeve is arranged on the outer side of the unfolding mechanism, the unfolding mechanism comprises an installation disc, a deformation plate, an inner supporting plate and an outer supporting plate, a fixed column and the deformation plate are installed on one side of the installation disc, a connecting plate is installed on the other side of the installation disc, the fixed column and the connecting plate are both installed at the axis of the installation disc, an auxiliary disc is installed on the outer side of the fixed column and located on the inner side of the unfolding mechanism, the circle center of the auxiliary disc is located at the axis position of the fixed column, a plurality of the deformation plates are spaced at the same distance, the inner supporting plate is connected with one end, far away from the installation disc, of the deformation plate, the deformation plate has a certain radian so that the directions of the inner supporting plates are the same, one side, facing the inner supporting plate, of the outer supporting plate is connected with two adjacent inner;

the side of the inner supporting plate close to the connecting plate is provided with a first fixed seat, one side of the mounting disc facing the inner supporting plate is provided with a second fixed seat, a plurality of second fixed seats are annularly arranged by taking the connecting plate as a center, the positions of the second fixed seats correspond to the first fixed seats, each pair of second fixed seats are provided with a first connecting rod, one end of each first connecting rod is positioned inside the corresponding second fixed seat, the other end of each first connecting rod is connected with a second connecting rod and a third connecting rod, a pin shaft is arranged among the first connecting rod, the second connecting rod and the third connecting rod, the other end of each third connecting rod is arranged inside a connecting shaft arranged at the lower end of the auxiliary disc, the third connecting rod is connected with the connecting shaft through the pin shaft, the other end of each second connecting rod is positioned inside the corresponding second fixed seat, and bolts are arranged inside the first fixed seat and the second fixed, the bolt passes through the first connecting rod in the second fixing seat, and the outer side of the bolt is in threaded connection with a nut.

2. The intelligent explosion-proof automatic underwater plugging air bag according to claim 1, characterized in that: the outer supporting plate is characterized in that a plurality of connecting blocks are installed on the outer side of the outer supporting plate, a mounting groove is formed in the inner side of the sealing ring, the sealing ring is sleeved on the outer side of the outer supporting plate, the connecting blocks are clamped inside the mounting groove, the connecting blocks are arranged in a staggered mode, and the mounting groove corresponds to the connecting blocks.

3. The intelligent explosion-proof automatic underwater plugging air bag according to claim 1, characterized in that: the inboard of sealing washer is provided with the water proof membrane, water proof membrane covers installation disc and deformation board, the middle part of water proof membrane is equipped with the opening and supplies the fixed column to stretch out.

4. The intelligent explosion-proof automatic underwater plugging air bag according to claim 3, characterized in that: and one end of the fixing column, which is far away from the mounting disc, is provided with a water pressure gauge, and the water pressure gauge is positioned in water during working and is used for detecting the water pressure of leakage water flow.

5. The intelligent explosion-proof automatic underwater plugging air bag according to claim 1, characterized in that: the cylinder is installed to one side of keeping away from the installation disc of connecting plate, the gas tube is installed in the outside of cylinder, the inflation inlet of gas tube is provided with the fastener, the fastener is used for preventing to take place to reveal when aerifing for the cylinder.

6. The intelligent explosion-proof automatic underwater plugging air bag according to claim 5, characterized in that: the guide rod is installed to one side of the installation disc facing the inner supporting plate, the guide rod is located around the cylinder, and the tail end of the guide rod is provided with a supporting plate with a mounting hole for mounting the plugging device.

7. An intelligent explosion-proof automatic underwater plugging air bag according to any one of claims 1 to 6, characterized in that: the use steps are as follows:

a: the plugging air bag is placed into a pipeline opening to be plugged, a connector of an inflator is connected with an inflation pipe, a fastener is screwed down, leakage is avoided when the cylinder is inflated, the inflator is started, compressed air is filled into the cylinder, and whether the specified pressure is reached or not is observed through a barometer;

b: after the step A is completed, in the process of inflating the air cylinder, the air cylinder pulls the mounting disc through the connecting plate, the second fixing seat on the mounting disc moves to drive the first connecting rod inside the air cylinder to rotate around the bolt and push the first connecting rod outwards, the other end of the first connecting rod drives the second connecting rod and the third connecting rod to push the inner supporting plate outwards, the deformation plate connected with the inner supporting plate moves, the outer supporting plate connected with the outer side of the inner supporting plate is unfolded along with the unfolding of the inner supporting plate, the outer supporting plate is unfolded to expand the sealing ring on the outer side of the outer supporting plate, the pipeline can be rapidly plugged, and the air bag does not need to;

c: the outer side of the outer supporting plate is sleeved with a sealing ring, the mounting groove in the inner side of the sealing ring is mutually clamped with the connecting blocks which are arranged on the outer side of the outer supporting plate in a staggered mode, the connecting blocks are arranged in a staggered mode, so that the sealing ring is stressed in different directions in the process that the sealing ring is propped open by the outer supporting plate, the phenomenon that the sealing ring falls off due to overlarge inclined angle of the outer supporting plate is avoided, meanwhile, in the process of plugging a pipeline, water flow can push the sealing ring backwards, and the sealing ring and the outer supporting plate are connected more;

d: after the step C is finished, the waterproof membrane on the inner side of the sealing ring covers the unfolding mechanism, the middle part of the waterproof membrane is penetrated through by the fixed column, the joint of the waterproof membrane and the fixed column needs to be subjected to waterproof treatment, water permeation is avoided, the waterproof membrane is extruded by water pressure and can be tightly attached to the unfolding mechanism to avoid water permeation, meanwhile, the bearing capacity of the waterproof membrane can be improved, the waterproof membrane is not easy to damage, the water pressure gauge at the top end of the fixed column is located on one side of the pipeline with water flow, the water pressure gauge can detect whether the sealing ring completely blocks the pipeline, if the pipeline is completely blocked, the water pressure gauge is stable, if the pipeline is not completely blocked, the water pressure gauge can fluctuate, an outer supporting plate needs to be continuously expanded until the pipeline is completely blocked, construction can be carried out, a fastener is.

Technical Field

The invention relates to the technical field of emergency maintenance of pipelines, in particular to an intelligent explosion-proof automatic underwater plugging air bag.

Background

At present, before plugging a pipeline with leakage, whether the inner wall of the pipeline is flat and smooth or not is checked firstly, whether protruding burrs exist or not is judged, sharp objects such as glass and stones are removed immediately if the sharp objects exist, so as to avoid puncturing an air bag, the air bag is placed horizontally after being placed into the pipeline and is not required to be placed in a twisted mode, so as to avoid nesting air to burst the air bag, the pipeline plugging air bag is placed into a pipeline opening needing to be plugged, the length of the pipeline is the length of a plugging device, then compressed air is injected to a specified pressure through an air inlet valve, construction can be carried out, the air inlet valve is opened to release air after the construction is finished, the plugging device is taken out, and the method for inflating the air bag is easy to cause damage of a rubber air.

Therefore, the intelligent explosion-proof automatic underwater plugging air bag is provided, firstly, the set unfolding mechanism is matched with the sealing ring, the tightness and the safety of pipeline plugging are improved, the air bag does not need to be inflated, the plugging time is shortened, the manpower cost and the investment of manpower and material resources are saved, secondly, the set outer supporting plate, the sealing ring and the waterproof membrane are matched, the sealing ring is prevented from falling off in the pipeline plugging process, and the plugging effect is improved.

Disclosure of Invention

The invention mainly aims to provide an intelligent explosion-proof automatic underwater plugging air bag, which is provided with a deployment mechanism and a sealing ring which are matched with each other, so that the tightness and the safety of pipeline plugging are improved, the air bag does not need to be inflated, the plugging time is shortened, and the manpower cost and the investment of manpower and material resources are saved; the cooperation between the outer fagging, sealing washer and the waterproof membrane that set up has avoided the sealing washer to drop at the in-process of shutoff pipeline, improves the effect of shutoff, can effectively solve the problem among the background art.

In order to achieve the purpose, the invention adopts the technical scheme that:

an intelligent explosion-proof automatic underwater plugging air bag comprises a deployment mechanism and a sealing ring, wherein the sealing ring is sleeved on the outer side of the deployment mechanism, the deployment mechanism comprises an installation disc, a deformation plate, an inner supporting plate and an outer supporting plate, a fixed column and a deformation plate are installed on one side of the installation disc, a connecting plate is installed on the other side of the installation disc, the fixed column and the connecting plate are both installed at the axis center of the installation disc, an auxiliary disc is installed on the outer side of the fixed column and located on the inner side of the deployment mechanism, the circle center of the auxiliary disc is located at the axis center of the fixed column, the auxiliary discs are fixedly installed on the fixed column, a plurality of deformation plates are spaced at the same distance, the inner supporting plate is connected with one end of the deformation plate, which is far away from the installation disc, the deformation plate has a certain radian so that the orientation between the inner supporting plates is the same, one, the number of the outer supporting plates is the same as that of the inner supporting plates.

Furthermore, a first fixed seat is arranged on one side of the inner supporting plate close to the connecting plate, a second fixed seat is arranged on one side of the mounting disc facing the inner supporting plate, a plurality of second fixed seats are annularly arranged by taking the connecting plate as a center, the positions of the second fixed seats correspond to the first fixed seats, each pair of second fixed seats are provided with a first connecting rod, one end of the first connecting rod is positioned inside the second fixed seats, the other end of the first connecting rod is connected with a second connecting rod and a third connecting rod, a pin shaft is arranged among the first connecting rod, the second connecting rod and the third connecting rod, the other end of the third connecting rod is arranged inside a connecting shaft arranged at the lower end of the auxiliary disc, the third connecting rod is connected with the connecting shaft through the pin shaft, the other end of the second connecting rod is positioned inside the second fixed seats, and bolts are arranged inside the first fixed seat and the second fixed seats, the bolt passes through the first connecting rod inside the second fixing seat, the outer side of the bolt is in threaded connection with a nut, and the first connecting rod can rotate around the bolt when being subjected to external force.

Furthermore, a plurality of connecting blocks are installed on the outer side of the outer supporting plate, a mounting groove is formed in the inner side of the sealing ring, the sealing ring is sleeved on the outer side of the outer supporting plate, the connecting blocks are clamped inside the mounting groove, the connecting blocks are arranged in a staggered mode, and the mounting groove corresponds to the connecting blocks in position.

Further, the inboard of sealing washer is provided with the water proof membrane, water proof membrane covers installation disc and deformation board, the middle part of water proof membrane is equipped with the opening and supplies the fixed column to stretch out.

Furthermore, a water pressure gauge is installed at one end, far away from the installation disc, of the fixing column, and the water pressure gauge is located in water during working and used for detecting water pressure of leakage water flow.

Further, when the mounting disc is in an initial state, namely an uninflated state, an included angle between the second connecting rod and the third connecting rod is 90-120 degrees; when the installation disc is located operating condition, when the gas filled state promptly, this moment, the contained angle between second connecting rod, the third connecting rod is a certain degree between 160~180 to do not exceed 180.

Further, the cylinder is installed to the one side of keeping away from the installation disc of connecting plate, the gas tube is installed in the outside of cylinder, the inflation inlet of gas tube is provided with the fastener, the fastener is used for preventing to take place to reveal when aerifing for the cylinder.

Furthermore, the guide rod is installed to one side of the installation disc facing the inner supporting plate, the guide rod is located around the cylinder, and the tail end of the guide rod is provided with a supporting plate with a mounting hole for installing plugging equipment.

Further, an automatic shutoff gasbag under water of explosion-proof type of intelligence, the use step is as follows:

a: the plugging air bag is placed into a pipeline opening to be plugged, a connector of an inflator is connected with an inflation pipe, a fastener is screwed down, leakage is avoided when the cylinder is inflated, the inflator is started, compressed air is filled into the cylinder, and whether the specified pressure is reached or not is observed through a barometer;

b: after the step A is completed, in the process of inflating the air cylinder, the air cylinder pulls the mounting disc through the connecting plate, the second fixing seat on the mounting disc moves to drive the first connecting rod inside the air cylinder to rotate around the bolt and push the first connecting rod outwards, the other end of the first connecting rod drives the second connecting rod and the third connecting rod to push the inner supporting plate outwards, the deformation plate connected with the inner supporting plate moves, the outer supporting plate connected with the outer side of the inner supporting plate is unfolded along with the unfolding of the inner supporting plate, the outer supporting plate is unfolded to expand the sealing ring on the outer side of the outer supporting plate, the pipeline can be rapidly plugged, and the air bag does not need to;

c: after the step B is completed, a sealing ring is sleeved on the outer side of the outer supporting plate, the mounting groove on the inner side of the sealing ring is mutually clamped with the connecting blocks which are arranged on the outer side of the outer supporting plate in a staggered mode, the connecting blocks are arranged in a staggered mode, so that the stress directions of the sealing ring in the process of being propped open by the outer supporting plate are different, the phenomenon that the outer supporting plate is inclined at an overlarge angle to enable the sealing ring to fall off is avoided, meanwhile, in the process of plugging a pipeline, the sealing ring is pushed backwards by water flow, and the sealing ring is connected with the;

d: after the step C is finished, the waterproof membrane on the inner side of the sealing ring covers the unfolding mechanism, the middle part of the waterproof membrane is penetrated through by the fixed column, the joint of the waterproof membrane and the fixed column needs to be subjected to waterproof treatment, water permeation is avoided, the waterproof membrane is extruded by water pressure and can be tightly attached to the unfolding mechanism to avoid water permeation, meanwhile, the bearing capacity of the waterproof membrane can be improved, the waterproof membrane is not easy to damage, the water pressure gauge at the top end of the fixed column is located on one side of the pipeline with water flow, the water pressure gauge can detect whether the sealing ring completely blocks the pipeline, if the pipeline is completely blocked, the water pressure gauge is stable, if the pipeline is not completely blocked, the water pressure gauge can fluctuate, an outer supporting plate needs to be continuously expanded until the pipeline is completely blocked, construction can be carried out, a fastener is.

Compared with the prior art, the invention has the following beneficial effects:

1. the expansion mechanism and the sealing ring are matched with each other, the tightness and the safety of pipeline plugging are improved, the plugging time is shortened without inflating an air bag, the investment of manpower cost and manpower and material resources is saved, the plugging device is more firmly fixed, the second fixing seat is pulled to move after the air cylinder is inflated, the first connecting rod in the second fixing seat rotates around the bolt and pushes the first connecting rod outwards, the other end of the first connecting rod drives the second connecting rod and the third connecting rod to push the inner supporting plate outwards, the outer supporting plate connected with the outer side of the inner supporting plate is unfolded along with the unfolding of the inner supporting plate, the outer supporting plate is unfolded to expand the sealing ring on the outer side of the outer supporting plate, the pipeline can be plugged quickly, the plugging time is shortened without inflating the air bag, the outer supporting plate is in inclined contact with the pipe wall, the component force in the horizontal direction can make the plugging device more firmly fixed, the plugging is avoided only by the friction force between the sealing ring and the pipe wall;

2. through the outer fagging that sets up, cooperation between sealing washer and the water proof membrane, the in-process of having avoided the sealing washer to drop at the shutoff pipeline, the effect of shutoff is improved, sealed snare is in the outside of outer fagging, the inboard mounting groove of sealing washer and the crisscross mutual block of connecting block that sets up in the outer fagging outside, the crisscross setting of connecting block, the in-process atress direction that makes the sealing washer propped open by outer fagging is different, the angle of avoiding outer fagging slope is too big, make the sealing washer drop, the in-process of shutoff pipeline simultaneously, rivers can push the sealing washer backward, and because outer fagging inclines backward, make the sealing washer be inseparabler with the outer fa.

Drawings

Fig. 1 is a schematic view of the overall structure of an intelligent explosion-proof automatic underwater plugging air bag.

Fig. 2 is a structural schematic diagram of a deployment mechanism of an intelligent explosion-proof automatic underwater plugging air bag.

Fig. 3 is another angle structure diagram of the deployment mechanism of the intelligent explosion-proof automatic underwater plugging air bag.

Fig. 4 is a left side view structural schematic diagram of a deployment mechanism of the intelligent explosion-proof automatic underwater plugging air bag.

Fig. 5 is a right-view structural schematic diagram of a deployment mechanism of the intelligent explosion-proof automatic underwater plugging air bag.

Fig. 6 is a schematic diagram of an outer supporting plate structure of an intelligent explosion-proof automatic underwater plugging air bag.

Fig. 7 is a schematic sectional view of a sealing ring of an intelligent explosion-proof automatic underwater plugging air bag according to the present invention.

Fig. 8 is a schematic structural view of a first connecting rod, a second connecting rod and a third connecting rod of an intelligent explosion-proof automatic underwater plugging air bag according to the present invention, wherein a is in an uninflated state, and b is in an inflated state.

In the figure: 1. a deployment mechanism; 2. a seal ring; 3. a water-resistant film; 4. fixing a column; 5. a water pressure gauge; 6. installing a disc; 7. a deformation plate; 8. an inner supporting plate; 9. an outer supporting plate; 10. an inflation tube; 11. a cylinder; 12. a guide bar; 13. a connecting plate; 14. a first fixed seat; 15. a second fixed seat; 16. a first link; 1601. a second connecting rod; 1602. a third connecting rod; 1603. a connecting shaft; 17. a bolt; 18. a nut; 19. connecting blocks; 20. mounting grooves; 21. a fastener; 22. an auxiliary disk.

Detailed Description

The present invention will be further described with reference to the following detailed description, wherein the drawings are for illustrative purposes only and are not intended to be limiting, wherein certain elements may be omitted, enlarged or reduced in size, and are not intended to represent the actual dimensions of the product, so as to better illustrate the detailed description of the invention.

Example 1

As shown in fig. 1-7, an intelligent explosion-proof automatic underwater plugging airbag comprises a deployment mechanism (1) and a sealing ring (2), wherein the sealing ring (2) is sleeved on the outer side of the deployment mechanism (1), the deployment mechanism (1) comprises a mounting disc (6), a deformation plate (7), an inner supporting plate (8) and an outer supporting plate (9), a fixing column (4) and the deformation plate (7) are installed on one side of the mounting disc (6), a connecting plate (13) is installed on the other side of the mounting disc (6), the fixing column (4) and the connecting plate (13) are both installed on the axis of the mounting disc (6), an auxiliary disc (22) is installed on the outer side of the fixing column (4) and positioned on the inner side of the deployment mechanism (1), the circle center of the auxiliary disc (22) is positioned on the axis of the fixing column (4), a plurality of deformation plates (7) are spaced at the same distance, the inner supporting plate (8) is connected with one end of the deformation plate (7), the deformation plate (7) has a certain radian so that the orientations of the inner supporting plates (8) are the same, one side of the outer supporting plate (9) facing the inner supporting plates (8) is connected with the two adjacent inner supporting plates (8), the number of the outer supporting plates (9) is the same as that of the inner supporting plates (8), and the sealing ring (2) is made of rubber and has certain deformation capacity.

A first fixing seat (14) is arranged on one side of the inner supporting plate (8) close to the connecting plate (13), a second fixing seat (15) is arranged on one side of the mounting disc (6) facing the inner supporting plate (8), a plurality of second fixing seats (15) are annularly arranged by taking the connecting plate (13) as a center, the positions of the second fixing seats (15) correspond to the first fixing seats (14), a first connecting rod (16) is arranged between each pair of second fixing seats (15), one end of the first connecting rod (16) is positioned in the second fixing seat (15), the other end of the first connecting rod (16) is connected with a second connecting rod (1601) and a third connecting rod (1602), a pin shaft is arranged among the first connecting rod (16), the second connecting rod (1601) and the third connecting rod (1602), the other end of the third connecting rod (1602) is arranged in a connecting shaft (1603) arranged at the lower end of the auxiliary disc (22), and third connecting rod (1602) passes through the round pin hub connection with connecting axle (1603), and the other end of second connecting rod (1601) is located the inside of second fixing base (15), and the inside of first fixing base (14) and second fixing base (15) all is provided with bolt (17), and bolt (17) pass first connecting rod (16) of second fixing base (15) inside, and the outside threaded connection of bolt (17) has nut (18).

When the mounting disc (6) is in an initial state, namely an uninflated state, an included angle between the second connecting rod (1601) and the third connecting rod (1602) is 90-120 degrees; when the installation disc (6) is in a working state, namely an inflation state, at the moment, the included angle between the second connecting rod (1601) and the third connecting rod (1602) is a certain degree between 160-180 degrees and does not exceed 180 degrees.

An air cylinder (11) is installed on one side, far away from the installation disc (6), of the connecting plate (13), an inflation tube (10) is installed on the outer side of the air cylinder (11), a fastener (21) is arranged at an inflation port of the inflation tube (10), and the fastener (21) is used for preventing leakage when the air cylinder (11) is inflated.

Guide rods (12) are installed on one side, facing the inner supporting plate (8), of the installation disc (6), the guide rods (12) are located on the periphery of the air cylinder (11), and a supporting plate, used for installing plugging equipment, of an installation hole is formed in the tail end of each guide rod (12).

By adopting the technical scheme: the expansion mechanism (1) and the sealing ring (2) are matched with each other, the tightness and the safety of pipeline plugging are improved, the air bag does not need to be inflated to shorten the plugging time, the investment of labor cost and manpower and material resources is saved, the plugging device is fixed more firmly, the air cylinder (11) is inflated to pull the second fixing seat (15) to move, the first connecting rod (16) in the second fixing seat (15) rotates around the bolt (17) and pushes the first connecting rod (16) to the outer side, the other end of the first connecting rod (16) drives the second connecting rod (1601) and the third connecting rod (1602), the inner supporting plate (8) is pushed to the outer side, the deformation plate (7) connected with the inner supporting plate (8) moves, the outer supporting plate (9) connected to the outer side of the inner supporting plate (8) expands along with the expansion of the inner supporting plate (8), and the outer supporting plate (9) also expands along with the expansion of the inner supporting plate (8), the outer supporting plate (9) expands the sealing ring (2) on the outer side of the outer supporting plate, so that the pipeline can be quickly plugged, the air bag does not need to be inflated, the plugging time is shortened, the outer supporting plate (9) is in inclined contact with the pipe wall, the component force in the horizontal direction can enable the plugging device to be fixed more firmly, and the plugging is avoided only by the friction force between the sealing ring (2) and the pipe wall.

Example 2

As shown in fig. 1-7, an intelligent explosion-proof automatic underwater plugging airbag comprises a deployment mechanism (1) and a sealing ring (2), wherein the sealing ring (2) is sleeved on the outer side of the deployment mechanism (1), the deployment mechanism (1) comprises a mounting disc (6), a deformation plate (7), an inner supporting plate (8) and an outer supporting plate (9), a fixing column (4) and the deformation plate (7) are installed on one side of the mounting disc (6), a connecting plate (13) is installed on the other side of the mounting disc (6), the fixing column (4) and the connecting plate (13) are both installed on the axis of the mounting disc (6), an auxiliary disc (22) is installed on the outer side of the fixing column (4) and positioned on the inner side of the deployment mechanism (1), the circle center of the auxiliary disc (22) is positioned on the axis of the fixing column (4), a plurality of deformation plates (7) are spaced at the same distance, the inner supporting plate (8) is connected with one end of the deformation plate (7), the deformation plates (7) have certain radians to enable the orientations of the inner supporting plates (8) to be the same, one side of each outer supporting plate (9) facing the inner supporting plate (8) is connected with the two adjacent inner supporting plates (8), and the number of the outer supporting plates (9) is the same as that of the inner supporting plates (8).

A first fixing seat (14) is arranged on one side of the inner supporting plate (8) close to the connecting plate (13), a second fixing seat (15) is arranged on one side of the mounting disc (6) facing the inner supporting plate (8), a plurality of second fixing seats (15) are annularly arranged by taking the connecting plate (13) as a center, the positions of the second fixing seats (15) correspond to the first fixing seats (14), a first connecting rod (16) is arranged between each pair of second fixing seats (15), one end of the first connecting rod (16) is positioned in the second fixing seat (15), the other end of the first connecting rod (16) is connected with a second connecting rod (1601) and a third connecting rod (1602), a pin shaft is arranged among the first connecting rod (16), the second connecting rod (1601) and the third connecting rod (1602), the other end of the third connecting rod (1602) is arranged in a connecting shaft (1603) arranged at the lower end of the auxiliary disc (22), and third connecting rod (1602) passes through the round pin hub connection with connecting axle (1603), and the other end of second connecting rod (1601) is located the inside of second fixing base (15), and the inside of first fixing base (14) and second fixing base (15) all is provided with bolt (17), and bolt (17) pass first connecting rod (16) of second fixing base (15) inside, and the outside threaded connection of bolt (17) has nut (18).

When the mounting disc (6) is in an initial state, namely an uninflated state, an included angle between the second connecting rod (1601) and the third connecting rod (1602) is 90-120 degrees; when the installation disc (6) is in a working state, namely an inflation state, at the moment, the included angle between the second connecting rod (1601) and the third connecting rod (1602) is a certain degree between 160-180 degrees and does not exceed 180 degrees.

A plurality of connecting block (19) are installed in the outside of outer fagging (9), mounting groove (20) have been seted up to the inboard of sealing washer (2), and sealing washer (2) cover is in the outside of outer fagging (9) and connecting block (19) card in the inside of mounting groove (20), and crisscross setting and mounting groove (20) are corresponding with the position of connecting block (19) between connecting block (19).

The inboard of sealing washer (2) is provided with water proof membrane (3), water proof membrane (3) cover installation disc (6) and deformation board (7), the middle part of water proof membrane (3) is equipped with the opening and supplies fixed column (4) to stretch out, sealed processing is done with the junction of fixed column (4) in water proof membrane (3), avoid water infiltration, water proof membrane (3) receive hydraulic extrusion can paste tight deformation board (7) and avoid water infiltration, can improve its pressure-bearing ability, difficult damage.

And one end of the fixed column (4) far away from the mounting disc (6) is provided with a water pressure gauge (5), the water pressure gauge (5) is positioned in water during working and is used for detecting the water pressure of leakage water flow, and the stable numerical value of the water pressure gauge (5) indicates that the pipeline is completely blocked.

By adopting the technical scheme: through outer fagging (9) that set up, cooperation between sealing washer (2) and water proof membrane (3), avoided sealing washer (2) to drop at the in-process of shutoff pipeline, the effect of improvement shutoff, sealing washer (2) cover is in the outside of outer fagging (9), the mounting groove (20) of sealing washer (2) inboard and the crisscross connecting block (19) block that sets up in outer fagging (9) outside each other, the crisscross setting of connecting block (19), the in-process atress direction that makes sealing washer (2) propped open by outer fagging (9) is different, the angle of avoiding outer fagging (9) slope is too big, make sealing washer (2) drop, the in-process of shutoff pipeline simultaneously, rivers can push sealing washer (2) backward, and because outer fagging (9) incline backward, make sealing washer (2) and outer fagging (9) be connected inseparabler.

The invention is to be noted that the invention is an intelligent explosion-proof automatic underwater plugging air bag, when in use, firstly, the plugging air bag is put into a pipeline opening to be plugged, a connector of an inflator is connected with an inflation pipe (10), a fastener (21) is screwed, leakage is avoided when an air cylinder (11) is inflated, the inflator is started, compressed air is filled into the air cylinder (11), whether the pressure reaches a specified pressure is observed through a barometer, secondly, in the process of inflating the air cylinder (11), the air cylinder (11) pulls a mounting disc (6) through a connecting plate (13), a second fixing seat (15) on the mounting disc (6) moves to drive a first connecting rod (16) inside the mounting disc to rotate around a bolt (17) and push the first connecting rod (16) outwards, the other end of the first connecting rod (16) drives a second connecting rod (1601) and a third connecting rod (1602) to push an inner supporting plate (8) outwards, the deformation plate (7) connected with the inner supporting plate (8) moves, the outer supporting plate (9) connected with the outer side of the inner supporting plate (8) expands along with the expansion of the inner supporting plate (8), the outer supporting plate (9) also expands along with the expansion of the inner supporting plate, the outer supporting plate (9) expands to expand the sealing ring (2) on the outer side of the outer supporting plate, the pipeline can be quickly plugged, the air bag does not need to be inflated to shorten the plugging time, furthermore, the outer side of the outer supporting plate (9) is sleeved with the sealing ring (2), the mounting groove (20) on the inner side of the sealing ring (2) is mutually clamped with the connecting blocks (19) staggered on the outer side of the outer supporting plate (9), the connecting blocks (19) are staggered, the stress directions in the process that the sealing ring (2) is propped open by the outer supporting plate (9) are different, the inclination angle of the outer supporting plate (9) is prevented from being too large, the sealing ring (2), and because the outer supporting plate (9) is inclined backwards, so that the sealing ring (2) is connected with the outer supporting plate (9) more closely, finally, the waterproof membrane (3) at the inner side of the sealing ring (2) covers the unfolding mechanism (1), the middle part of the waterproof membrane (3) is penetrated by the fixed column (4), the joint of the waterproof membrane (3) and the fixed column (4) needs to be subjected to waterproof treatment to avoid water permeation, the waterproof membrane (3) is extruded by water pressure to be tightly attached to the unfolding mechanism (1) to avoid water permeation, meanwhile, the bearing capacity of the waterproof membrane (3) can be improved, so that the waterproof membrane (3) is not easy to damage, the water pressure meter (5) at the top end of the fixed column (4) is positioned at one side of the pipeline with water flow, the water pressure meter (5) can detect whether the sealing ring (2) is completely blocked, if completely blocked, the water pressure meter (5) should be kept stable, if the pipeline is not completely blocked, the water pressure meter, the outer supporting plate (9) needs to be expanded continuously until the air bag is completely blocked, construction can be carried out, after the construction is finished, the fastening piece (21) is opened to release air, and the blocking air bag is taken out.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.