Pipeline plugging air bag

Abstract

The utility model is suitable for the technical field of water supply and drainage, and provides a pipeline blocking air bag which comprises an air bag body, a valve, a circular fixing plate and a plurality of fixing assemblies. The valve is arranged on the inflation and deflation port; the fixed plate is fixed on the air bag main body; the multiple fixing assemblies are arranged around the edge of the fixing plate, each fixing assembly comprises a retaining claw and an elastic part, one end of each retaining claw is hinged to the fixing plate, the other end of each retaining claw is connected with the fixing plate through the elastic part, and the retaining claws extend out of the outer edge of the fixing plate under the action of the elastic parts and are used for abutting against the inner wall of the pipeline. The stability and reliability of the pipeline plugging air bag can be improved, and the possibility of plugging failure of the pipeline plugging air bag when the water pressure is large and the air bag body and the pipeline are not tightly attached to each other and loosen is reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of water supply and drainage, and in particular to a pipeline plugging airbag. Background Art

[0002] When it is necessary to seal a municipal pipeline, an airbag made of high-quality rubber is generally placed in the pipeline and expanded by inflation. When the gas pressure in the water-blocking airbag reaches the specified requirement, the airbag fills the entire pipeline section, and the friction between the airbag wall and the pipeline is used to block the water leak, thereby achieving rapid blocking of the water flow in the target pipe section through inflation, achieving the purpose of no water seepage.

[0003] However, the existing airbags used for pipe plugging are prone to sealing failure when the water pressure in the pipe is high or the airbag is not tightly fitted to the pipe and becomes loose. Utility Model Content

[0004] The present application provides a pipeline plugging airbag, which can solve the problem that the current airbags used for pipeline plugging are prone to plugging failure when the water pressure in the pipeline is high or the airbag is not tightly fitted to the pipeline and becomes loose.

[0005] The embodiment of the present application provides a pipeline plugging airbag, comprising:

[0006] The airbag body has an inflation and deflation port;

[0007] A valve, arranged on the gas charging and discharging port;

[0008] A circular fixing plate fixed to the airbag body; and

[0009] Multiple fixing components are arranged around the edge of the fixing plate. The fixing components include a back-stop claw and an elastic member. One end of the back-stop claw is hinged to the fixing plate, and the other end is connected to the fixing plate through the elastic member. Under the action of the elastic member, the back-stop claw extends out of the outer edge of the fixing plate to resist the inner wall of the pipe.

[0010] Optionally, multiple fixing seats are evenly arranged on the edge of the fixed plate, and multiple fixing components are respectively arranged on the multiple fixing seats in a one-to-one manner. One end of the backstop claw is hinged to the fixing seat, and the elastic member is connected between the backstop claw and the fixing seat. Under the action of the elastic member, the backstop claw extends out of the outer edge of the fixed plate to resist the inner wall of the pipe.

[0011] Optionally, the back-stop claw includes a connecting section and a reinforcement section that are connected to each other. The connecting section and the reinforcement section are arranged at an angle. One end of the connecting section away from the reinforcement section is hinged to the fixed seat. Under the action of the elastic member, the reinforcement section extends out of the outer edge of the fixed plate to resist the inner wall of the pipe.

[0012] Optionally, the elastic member is a tension spring, one end of the tension spring is connected to an end of the fixing seat away from the fixing plate, and the other end of the tension spring is connected to a connection point between the connecting section and the reinforcement section.

[0013] Optionally, a surface of the reinforcement section in contact with the inner wall of the pipe is provided with serrations.

[0014] Optionally, the air charging and discharging port is arranged on the fixed plate, and the valve is arranged on the fixed plate and is connected to the air charging and discharging port.

[0015] Optionally, a handle is provided on the fixing plate.

[0016] Optionally, the fixing plate includes an inner plate and an outer plate, the inner plate is arranged inside the airbag body, and the outer plate is arranged outside the airbag body, and the inner plate and the outer plate are buckled to clamp the airbag body part between the inner plate and the outer plate.

[0017] Optionally, the inner plate and the outer plate are connected by a plurality of bolts.

[0018] Optionally, sealant is applied at the joints between each bolt and the inner panel, the outer panel and the airbag body.

[0019] The above solution of the present application has the following beneficial effects:

[0020] In the embodiments of the present application, when the pipeline plugging airbag provided by the present application is used, the plugging airbag is placed in the pipeline, the valve is opened, and the airbag body is inflated through the valve until the airbag body is filled and presses against the inner wall of the pipeline, and the valve is closed. At the same time, the stop claw can push against the inner wall of the pipeline under the action of the elastic member, thereby improving the stability and reliability of the pipeline plugging airbag and reducing the possibility of sealing failure of the pipeline plugging airbag when the water pressure is high and the airbag body is not tightly fitted to the pipeline and becomes loose.

[0021] Other beneficial effects of the present application will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 A schematic diagram of the structure of the pipeline plugging airbag provided in this application;

[0024] Figure 2 A schematic diagram of the structure of the fixing plate, fixing seat and anti-retraction claw in the pipeline plugging airbag provided in the present application;

[0025] Figure 3 A schematic diagram of the pipeline plugging airbag provided for this application during construction.

[0026] [Description of Reference Numerals]

[0027] 1. Airbag body; 2. Fixing plate; 21. Inner plate; 22. Outer plate; 3. Valve; 4. Stop claw; 41. Connecting section; 42. Reinforcement section; 421. Sawtooth; 5. Fixing seat; 6. Elastic part; 7. Handle; 8. Bolt; 10. Pipeline. DETAILED DESCRIPTION

[0028] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0029] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0030] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0031] As used in the specification and appended claims of this application, the term "if" can be interpreted as "when" or "uponce" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" can be interpreted as meaning "uponce it is determined" or "in response to determining" or "uponce [described condition or event] is detected" or "in response to detecting [described condition or event]", depending on the context.

[0032] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0033] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0034] At present, the existing airbags used for pipe plugging are prone to sealing failure when the water pressure in the pipe is high or the airbag is not tightly fitted to the pipe and becomes loose.

[0035] In view of the above problems, the present application provides a pipeline plugging airbag, such as Figure 1 As shown, the pipeline plugging airbag includes an airbag body 1, a valve 3, a circular fixing plate 2 and a plurality of fixing components, the airbag body 1 has an air charging and discharging port (not shown in the figure); the valve 3 is arranged on the air charging and discharging port; the circular fixing plate 2 is fixed on the airbag body 1; a plurality of fixing components are arranged around the edge of the fixing plate 2, the fixing components include a back-stop claw 4 and an elastic member 6, one end of the back-stop claw 4 is hinged to the fixing plate 2, and the other end is connected to the fixing plate 2 through the elastic member 6, and the back-stop claw 4 extends out of the outer edge of the fixing plate 2 under the action of the elastic member 6 to resist the inner wall of the pipeline.

[0036] The airbag body 1 is used for inflating to block the pipeline, and for deflating to facilitate removal from the pipeline; the valve 3 is used for adjusting the air pressure in the airbag body 1, and the valve 3 can be opened or closed to allow air to enter / exit the airbag body 1, and the valve 3 can prevent gas leakage, which is beneficial to maintaining the set air pressure in the airbag body 1. The opening and closing of the valve 3 can realize inflation and deflation. When inflating, the valve 3 is opened to allow gas to enter, and when deflation, the valve 3 is opened to allow gas to discharge. By adjusting the opening of the valve 3, the rising speed of the air pressure in the airbag can be controlled, and then the expansion degree of the airbag can be controlled; the fixing plate 2 is used to install the fixing assembly, and the back-stop claw 4 in the fixing assembly extends out of the outer edge of the fixing plate 2 under the action of the elastic member 6 to press against the inner wall of the pipeline for reinforcement.

[0037] When the pipe sealing airbag provided in the present application is in use, the pipe sealing airbag is placed in the pipe, the valve 3 is opened, and the airbag body 1 is inflated through the valve 3 until the airbag body 1 is filled and presses against the inner wall of the pipe, and the valve 3 is closed. At this time, the stop claw 4 will be pushed against the inner wall of the pipe under the action of the elastic member 6 for fixation.

[0038] It can be understood that before the pipe sealing airbag is placed in the pipe, the anti-recognition claw 4 can overcome the elastic force of the elastic member 6 through external force, so that the anti-recognition claw 4 is flipped to a position close to the center of the fixed plate 2. When the pipe sealing airbag reaches the set position, the external force is released, and the anti-recognition claw 4 will be pushed against the inner wall of the pipe under the action of the elastic member 6.

[0039] In some embodiments of the present application, a pressure gauge (not shown in the figure) is also provided on the above-mentioned valve.

[0040] The pressure gauge is used to observe the pressure condition inside the airbag body 1 .

[0041] In some embodiments of the present application, Figure 1 and Figure 2 As shown, a plurality of fixing seats 5 are evenly arranged on the edge of the fixing plate 2, and a plurality of fixing components are respectively arranged on the plurality of fixing seats 5 in a one-to-one correspondence. One end of the retaining claw 4 is hinged to the fixing seat 5, and an elastic member 6 is connected between the retaining claw 4 and the fixing seat 5. The retaining claw 4 extends out of the outer edge of the fixing plate 2 under the action of the elastic member 6 to resist the inner wall of the pipe.

[0042] In this embodiment, the fixing seat 5 is provided to facilitate the disassembly of the fixing assembly for inspection, maintenance and repair.

[0043] In some embodiments of the present application, a gasket (not shown in the figure) is provided between the fixing seat 5 and the fixing plate 2 for buffering, shock absorption and sealing.

[0044] In some embodiments of the present application, Figure 1 and Figure 2 As shown, the stop claw 4 includes a connecting section 41 and a reinforcement section 42 which are connected to each other. The connecting section 41 and the reinforcement section 42 are arranged at an angle. One end of the connecting section 41 away from the reinforcement section 42 is hinged to the fixing seat 5. The reinforcement section 42 extends out of the outer edge of the fixing plate 2 under the action of the elastic member 6 to resist the inner wall of the pipe.

[0045] The anti-retraction claw 4 is provided with a connecting section 41 and a reinforcing section 42. When the anti-retraction claw 4 cooperates with the elastic member 6 to push against the inner wall of the pipe, the reinforcing section 42 can better fit the inner wall of the pipe to improve the stability of the reinforcement.

[0046] In some embodiments of the present application, Figure 2 As shown, the elastic member 6 is a tension spring, one end of which is connected to an end of the fixing seat 5 away from the fixing plate 2 , and the other end of the tension spring is connected to the connection between the connecting section 41 and the reinforcing section 42 .

[0047] The tension spring can cooperate well with the anti-retraction claw 4, so that the anti-retraction claw 4 extends out of the outer edge of the fixing plate 2 and abuts against the inner wall of the pipeline.

[0048] It can be understood that the elastic member 6 can also be other components that can make the stop claw 4 extend out of the outer edge of the fixed plate 2 and thus press against the inner wall of the pipe. Exemplarily, the elastic member 6 can also be a compression spring, one end of which is connected to the end of the fixing seat 5 close to the fixed plate 2, and the other end of the compression spring is connected to the connection between the connecting section 41 and the reinforcement section 42.

[0049] In some embodiments of the present application, Figure 1 and Figure 2 As shown, a surface of the reinforcement section 42 in contact with the inner wall of the pipe is provided with saw teeth 421 .

[0050] In this embodiment, the serrations 421 can be provided to more firmly fix the anti-retraction claw 4 on the inner wall of the pipe to prevent sliding.

[0051] In some embodiments of the present application, Figure 1 As shown, the gas charging and discharging port is arranged at the fixed plate 2, and the valve 3 is arranged on the fixed plate 2 and is connected with the gas charging and discharging port.

[0052] The inflation port is arranged on one side of the fixing plate 2, so as to facilitate inflation of the airbag body 1 in the pipeline.

[0053] In some embodiments of the present application, Figure 1 and Figure 2 As shown, a handle 7 is provided on the fixing plate 2 .

[0054] The handle 7 can be used to conveniently place and take the pipeline blocking airbag provided by the present application.

[0055] In some embodiments of the present application, Figure 2 As shown, the fixing plate 2 includes an inner plate 21 and an outer plate 22. The inner plate 21 is arranged inside the airbag body 1, and the outer plate 22 is arranged outside the airbag body 1. The inner plate 21 and the outer plate 22 are buckled to clamp part of the airbag body 1 between the inner plate 21 and the outer plate 22.

[0056] In this embodiment, the inner plate 21 and the outer plate 22 of the fixing plate 2 are buckled to clamp part of the airbag body 1 between the inner plate 21 and the outer plate 22 to fix the fixing plate 2 relative to the airbag body 1 .

[0057] In some other embodiments, the fixing plate 2 may be integrally formed with the airbag body 1 . In some other embodiments, the fixing plate 2 may be directly bonded and fixed to the airbag body 1 .

[0058] In some embodiments of the present application, Figure 1 As shown, the inner plate 21 and the outer plate 22 are connected by a plurality of bolts 8 .

[0059] The inner plate 21 and the outer plate 22 are connected by a plurality of bolts 8 to ensure that the inner plate 21 and the outer plate 22 remain stable.

[0060] In some embodiments of the present application, the joints between each bolt 8 and the inner panel 21 , the outer panel 22 and the airbag body 1 are coated with sealant.

[0061] Sealant is applied to the joints between each bolt 8 and the inner panel 21 , the outer panel 22 and the airbag body 1 to prevent air leakage.

[0062] In some embodiments of the present application, Figure 3 As shown, during the construction process of the pipeline plugging airbag provided in the present application, before the pipeline plugging airbag is placed in the pipeline, the anti-retraction claw 4 is overcome by external force with the elastic force of the elastic member 6, so that the anti-retraction claw 4 is flipped to a position close to the center of the fixed plate 2, and one end of the airbag body 1 is inserted into the pipeline through the handle 7. When the pipeline plugging airbag reaches the set position, the external force is released, and the anti-retraction claw 4 will be pushed against the inner wall of the pipeline under the action of the elastic member 6. During this process, the serrations 421 on the reinforcement section 42 contact the inner wall of the pipeline 10, and the reinforcement section 42 and the inner wall of the pipeline 10 are increasingly fitted to achieve reinforcement, and the valve 3 is opened, and the airbag body 1 is inflated through the valve 3 so that the airbag body 1 expands to fit the inner wall of the pipeline 10. After the inflation is completed, the inflation is stopped and the valve 3 is closed to complete the plugging of the pipeline 10; after the construction work is completed, the valve 3 is opened to discharge the gas in the airbag body 1 to facilitate the removal of the pipeline 10 plugging airbag.

[0063] The above is a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A pipeline plugging airbag, characterized in that: include: The airbag body has an inflation and deflation port; A valve, disposed on the gas charging and discharging port; A circular fixing plate fixed on the airbag body; as well as A plurality of fixing components are arranged around the edge of the fixing plate, and the fixing components include a back-stop claw and an elastic member. One end of the back-stop claw is hinged to the fixing plate, and the other end is connected to the fixing plate through the elastic member. Under the action of the elastic member, the back-stop claw extends out of the outer edge of the fixing plate to resist the inner wall of the pipe.

2. The pipeline plugging airbag according to claim 1, characterized in that: A plurality of fixing seats are evenly arranged on the edge of the fixing plate, and the plurality of fixing components are respectively arranged on the plurality of fixing seats in a one-to-one correspondence. One end of the back-stop claw is hinged to the fixing seat, and the elastic member is connected between the back-stop claw and the fixing seat.

3. The pipeline plugging airbag according to claim 2, characterized in that: The anti-retraction claw includes a connecting section and a reinforcement section that are connected to each other. The connecting section is arranged at an angle to the reinforcement section. One end of the connecting section away from the reinforcement section is hinged to the fixed seat. Under the action of the elastic member, the reinforcement section extends out of the outer edge of the fixed plate to resist the inner wall of the pipe.

4. The pipeline plugging airbag according to claim 3, characterized in that: The elastic member is a tension spring, one end of which is connected to an end of the fixing seat away from the fixing plate, and the other end of the tension spring is connected to a connection between the connecting section and the reinforcing section.

5. The pipeline plugging airbag according to claim 3, characterized in that: The side of the reinforcement section in contact with the inner wall of the pipeline is provided with serrations.

6. The pipeline plugging airbag according to claim 1, characterized in that: The gas charging and discharging port is arranged at the fixing plate, and the valve is arranged on the fixing plate and communicated with the gas charging and discharging port.

7. The pipeline plugging airbag according to claim 1, characterized in that: A handle is provided on the fixing plate.

8. The pipeline plugging airbag according to any one of claims 1 to 7, characterized in that: The fixing plate includes an inner plate and an outer plate, wherein the inner plate is arranged inside the airbag body, and the outer plate is arranged outside the airbag body, and the inner plate and the outer plate are buckled to clamp the airbag body part between the inner plate and the outer plate.

9. The pipeline plugging airbag according to claim 8, characterized in that: The inner plate and the outer plate are connected by a plurality of bolts.

10. The pipeline plugging airbag according to claim 9, characterized in that: The connection between each bolt and the inner plate, the outer plate and the airbag body is coated with sealant.

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