Inflatable air bag quick dismounting and mounting mechanism for pipeline plugging

Abstract

The invention discloses an inflatable airbag quick dismounting and mounting mechanism for pipeline plugging, and relates to the technical field of pipeline plugging. The inflatable air bag quick dismounting and mounting mechanism for pipeline plugging comprises a ventilation module, an air bag module is connected to the lower portion of the ventilation module, the air bag module is mounted in a pipeline, a ventilation module connecting port is connected to the upper portion of the pipeline, and a ventilation pipe connecting ring is arranged at the upper end of the ventilation module connecting port; the breather pipe connecting ring is connected with a breather pipe, the upper end of the breather pipe is connected with a one-way valve body, the upper end of the one-way valve body is connected with a valve body air inlet, a valve element push rod is arranged in the middle of the valve body air inlet, a valve element is arranged at the lower end of the valve element push rod, and a guide push frame is arranged at the upper end of the valve element push rod; four guide rods are connected to the lower end of the guide push frame, a guide sleeve is arranged on the outer side of the air inlet of the valve body, and the guide sleeve is connected with the lower side lines of the guide rods.

Description

Technical Field

[0001] This invention relates to the field of pipeline plugging technology, specifically to an inflatable airbag quick-release mechanism for pipeline plugging and its usage method. Background Technology

[0002] The inflatable airbag used for pipe sealing is a highly efficient tool specifically designed for rapid pipe sealing in emergency situations. It works by injecting gas into the airbag, causing it to expand rapidly and fit tightly against the pipe wall, achieving a complete seal. This tool is particularly important in responding to sudden pipe leaks or situations requiring temporary sealing, as its ease of operation and rapid response significantly improve the efficiency of emergency repairs while ensuring the safety and reliability of the sealing process.

[0003] For example, patent number CN 222316315 U relates to a pipe plugging device, including a plugging sleeve, a plugging fixing mechanism, and a plugging reinforcement mechanism. The plugging sleeve is open at one end and closed at the other, and is used to fit over one end of a pipe body to seal the pipe opening. The plugging fixing mechanism is fixedly installed on the plugging sleeve to secure it to the pipe body. The plugging reinforcement mechanism is installed on the plugging sleeve to clamp the pipe body. The advantages of this invention are its simple structure, reasonable design, and convenient and efficient use of the plugging sleeve to seal the pipe opening. After the plugging sleeve is installed and before the air bladder is inflated, the pipe can be connected to the outlet pipe and the valve opened, achieving the effect of plugging maintenance without affecting the pipe's flow, avoiding the situation where pipe plugging maintenance requires complete closure.

[0004] For example, patent number CN 211040112 U relates to a pipe sealing device, comprising: a sealing cup that matches the inner diameter of the pipe; a vertical support for extending into the pipe well to place the sealing cup inside the pipe; a hydraulic drive mechanism connected to the sealing cup for driving the sealing cup to press against the inner wall of the pipe, thereby sealing the pipe; and a horizontal support for being placed outside the pipe well to fix the vertical support. This pipe sealing device uses a vertical support to extend into the pipe well to seal the pipe, and removal can be performed by reversing the operation, reducing the safety risks for divers entering the pipe well, saving construction time, and reducing costs.

[0005] While the aforementioned patents have demonstrated some practicality in sealing operations, they still have significant technical limitations: the former's airbag structure is relatively simple, and the gas distribution within the airbag is uneven during inflation, which can easily lead to localized excessive expansion and stress imbalance. This not only affects the sealing performance but may also shorten the airbag's lifespan due to excessive localized stress on the airbag wall. The latter, although achieving sealing operations through hydraulic drive, has a relatively complex overall structure. Disassembly and assembly require the use of specialized tools to operate on multiple connecting components one by one. Especially in narrow pipeline wellhead environments, the limited operating space significantly reduces disassembly and assembly efficiency, making it difficult to meet the rapid response requirements in emergency repair scenarios. Summary of the Invention

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this invention provides a quick-assembly and disassembly mechanism for inflatable airbags used for pipeline plugging. This mechanism solves the problems of uneven gas distribution during airbag inflation in inflatable pipeline plugging devices, which leads to force imbalance, poor sealing, and short airbag lifespan. It also addresses the issues of hydraulically driven plugging devices, which have complex structures, require specialized tools for assembly and disassembly, have low operational efficiency in narrow pipeline wellheads, and are difficult to meet the needs of rapid emergency repair response.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the present invention provides the following technical solution: a quick-release mechanism for an inflatable airbag used for pipe sealing, comprising a ventilation module, an airbag module connected below the ventilation module, the airbag module being installed inside the pipe, a ventilation module connection port connected above the pipe, a ventilation pipe connection ring provided at the upper end of the ventilation module connection port, a ventilation pipe connection ring connected to a ventilation pipe, a one-way valve body connected at the upper end of the ventilation pipe, a valve body air inlet connected at the upper end of the one-way valve body, a valve core push rod provided in the middle of the valve body air inlet, a valve core provided at the lower end of the valve core push rod, a guide push frame provided at the upper end of the valve core push rod, four guide rods connected at the lower end of the guide push frame, a guide sleeve provided on the outer side of the valve body air inlet, and the guide sleeve being connected to the lower side of the guide rod.

[0010] Preferably, a spring push plate is provided at the lower end of the guide rod, and a return spring is connected to the lower end of the spring push plate. The lower end of the return spring is connected to the upper surface of the ventilation module connection interface.

[0011] Preferably, the upper surface of the air inlet of the ventilation module is provided with a housing, the upper end of the housing is connected to an internal threaded connection port, the internal threaded connection port is connected to an external threaded air inlet, and the lower end of the external threaded air inlet is in contact with the upper surface of the guide pusher.

[0012] Preferably, the lower end of the ventilation module connection interface is connected to an airbag interface, the airbag interface is connected to an airbag, a tube interface is provided inside the lower part of the airbag, the upper end of the tube interface is connected to a honeycomb inflation tube, and the upper end of the honeycomb inflation tube is connected to the lower end of the ventilation tube.

[0013] A method for using an inflatable airbag quick-release mechanism for pipe plugging, comprising the aforementioned inflatable airbag quick-release mechanism for pipe plugging, wherein the specific operation is as follows:

[0014] Step S1: During sealing, the airbag module is directly inserted into the pipe, and then the external threaded air inlet is connected to the air pump. After the air pump is started, gas enters the valve body inlet through the external threaded air inlet. At this time, the gas impacts the valve core, causing it to move downwards and disengage from the sealing surface of the valve body inlet. The gas can then pass through the one-way valve body into the vent pipe. The vent pipe delivers the gas to the honeycomb inflation tube. The multi-channel structure of the honeycomb inflation tube allows the gas to be evenly distributed to various areas inside the airbag. Under the action of gas pressure, the airbag gradually expands until it tightly adheres to the inner wall of the pipe, completing the sealing operation. After sealing is completed, the air pump is turned off and the external threaded air inlet is unscrewed. At this time, the elastic force of the return spring pushes the spring push plate upwards, driving the guide rod and guide push frame to reset. The valve core push rod then pulls the valve core upwards, resealing the one-way valve body and preventing gas leakage from the airbag.

[0015] Step S2: When the mechanism needs to be disassembled, rotate the external threaded air inlet to press down on the guide pusher, causing the valve core to disengage from the sealing surface. Then connect the external threaded air inlet to the suction pump. After the suction pump starts, the gas inside the airbag is extracted sequentially through the honeycomb inflation tube, the venting tube, the one-way valve body, and the external threaded air inlet. As the gas is gradually expelled, the airbag contracts evenly under its own elasticity and the compression of the inner wall of the pipe, tightly adhering to the outer wall of the honeycomb inflation tube, avoiding the local accumulation that occurs when traditional airbags deflate. After the airbag is fully contracted, simply pull the venting module upwards to simultaneously remove the airbag module from the pipe. The entire disassembly and assembly process does not require any special tools, significantly improving the response efficiency of emergency repairs.

[0016] (III) Beneficial Effects

[0017] This invention provides a quick-release mechanism for an inflatable airbag used for pipe plugging. It offers the following advantages:

[0018] The uniformity of gas distribution is significantly improved. Through the design of the honeycomb inflation tube, gas is delivered to multiple areas inside the airbag simultaneously, avoiding the problem of excessive local expansion of traditional airbags. This makes the airbag more evenly stressed, effectively improving the sealing performance, while reducing local stress on the airbag wall and extending the service life of the airbag.

[0019] No special tools are required for disassembly and assembly. When the gas inside the airbag is extracted, the airbag contracts and adheres tightly to the outer wall of the honeycomb inflation tube, allowing the airbag module to be quickly removed from the tube. This prevents the airbag from piling up in one place when deflated, making it difficult to remove. This further improves the convenience of the overall operation, greatly increases the efficiency of disassembly and assembly, and meets the rapid response needs of emergency repair scenarios.

[0020] This device is based on an improvement of existing equipment, so the improvement cost is relatively low and it will not cause a large amount of existing equipment to be discarded. It ensures the processing effect while reducing the investment in improvement costs, making it suitable for large-scale production. Attached Figure Description

[0021] Figure 1 Cross-sectional view of a quick-release mechanism for an inflatable airbag used for pipe plugging;

[0022] Figure 2 A schematic diagram of a quick-release mechanism for an inflatable airbag used for pipe plugging.

[0023] Figure 3 This is a schematic diagram of the guide pusher structure.

[0024] In the diagram: 1. Ventilation module; 101. Ventilation module connection port; 102. Ventilation pipe connection ring; 103. Ventilation pipe; 104. One-way valve body; 105. Valve body air inlet; 106. Valve core push rod; 107. Guide push frame; 108. Guide rod; 109. Guide sleeve; 110. Spring push plate; 111. Return spring; 112. Housing; 113. Internal thread connection port; 114. External thread air inlet; 115. Valve core; 2. Airbag module; 21. Airbag; 22. Pipe interface; 23. Honeycomb inflation tube; 24. Airbag interface; 3. Pipeline. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Please see Figure 1-3This invention provides a technical solution: a quick-assembly and disassembly mechanism for an inflatable airbag used for pipe sealing, comprising a ventilation module 1, an airbag module 2 connected below the ventilation module 1, the airbag module 2 being installed inside a pipe 3, a ventilation module connection port 101 connected above the pipe 3, a housing 112 provided on the upper surface of the ventilation module inlet 101, an internal threaded connection port 113 connected to the upper end of the housing 112, an external threaded air inlet 114 connected to the internal threaded connection port 113, the lower end of the external threaded air inlet 114 being in contact with the upper surface of a guide pusher 107, an airbag interface 24 connected to the lower end of the ventilation module connection port 101, an airbag interface 24 connected to the airbag interface 24, a pipe interface 22 provided inside the lower part of the airbag 21, a honeycomb inflation tube 23 connected to the upper end of the pipe interface 22, the upper end of the honeycomb inflation tube 23 being connected to the lower end of the ventilation tube 103. The ventilation module connection port 101 is provided with a ventilation pipe connecting ring 102 at its upper end. The ventilation pipe connecting ring 102 is connected to a ventilation pipe 103. A one-way valve body 104 is connected to the upper end of the ventilation pipe 103. A valve body inlet 105 is connected to the upper end of the one-way valve body 104. A valve core push rod 106 is provided in the middle of the valve body inlet 105. A valve core 115 is provided at the lower end of the valve core push rod 106. A valve core 115 is provided at the upper end of the valve core push rod 106. A guide pusher 107 is provided, and four guide rods 108 are connected to the lower end of the guide pusher 107. A spring push plate 110 is provided at the lower end of the guide rod 108, and a return spring 111 is connected to the lower end of the spring push plate 110. The lower end of the return spring 111 is connected to the upper surface of the ventilation module connection interface 101. A guide sleeve 109 is provided on the outside of the valve body air inlet 105, and the guide sleeve 109 is connected to the lower side line of the guide rod 108.

[0027] A method for using an inflatable airbag quick-release mechanism for pipe plugging, comprising the aforementioned inflatable airbag quick-release mechanism for pipe plugging, wherein the specific operation is as follows:

[0028] In step S1, during the sealing process, the airbag module 2 is directly inserted into the pipe 3, and then the external threaded air inlet 114 is connected to the air pump. After the air pump is started, the gas enters the valve body air inlet 105 through the external threaded air inlet 114. At this time, the gas impacts the valve core 115 and moves it downward, causing the valve core 115 to separate from the sealing surface of the valve body air inlet 105. The gas can then enter the ventilation pipe 103 through the one-way valve body 104. The ventilation pipe 103 delivers the gas to the honeycomb inflation pipe 23. The multi-channel structure of the honeycomb inflation pipe 23 allows the gas to be evenly distributed to various areas inside the airbag 21. Under the action of gas pressure, the airbag 21 gradually expands until it tightly adheres to the inner wall of the pipe 3, completing the sealing operation. After the sealing is completed, turn off the air pump and unscrew the external threaded air inlet 114. At this time, the elastic force of the reset spring 111 pushes the spring push plate 110 to move upward, which drives the guide rod 108 and the guide push frame 107 to reset. The valve core push rod 106 then pulls the valve core 115 upward, resealing the one-way valve body 104 to prevent gas leakage in the airbag 21.

[0029] In step S2, when the mechanism needs to be disassembled, rotate the external threaded air inlet 114 to press the guide pusher 107 downwards, causing the valve core 115 to disengage from the sealing surface. Then connect the external threaded air inlet 114 to the suction pump. After the suction pump is started, the gas in the airbag 21 is extracted sequentially through the honeycomb inflation tube 23, the ventilation tube 103, the one-way valve body 104, and the external threaded air inlet 114. As the gas is gradually discharged, the airbag 21 contracts evenly under its own elasticity and the squeezing action of the inner wall of the pipe, tightly adhering to the outer wall of the honeycomb inflation tube 23, avoiding the local accumulation that occurs when a traditional airbag deflates. After the airbag 21 is fully contracted, simply pull the ventilation module 1 upwards to simultaneously remove the airbag module 2 from the pipe 3. The entire disassembly and assembly process does not require any special tools, greatly improving the response efficiency of emergency repairs.

[0030] In summary, this mechanism requires no special tools during disassembly and assembly. When the gas inside the airbag is extracted, the airbag contracts and adheres tightly to the outer wall of the honeycomb inflation tube, allowing the airbag module to be quickly removed from the tube. This prevents the airbag from accumulating in one place when deflated, making it difficult to remove. This further improves the overall ease of operation, significantly increases disassembly and assembly efficiency, and meets the rapid response needs of emergency repair scenarios.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-release mechanism for an inflatable airbag used for pipe sealing, comprising a ventilation module (1), wherein an airbag module (2) is connected below the ventilation module (1), and the airbag module (2) is installed inside the pipe (3), characterized in that: The pipe (3) is connected to a ventilation module connection port (101) at the top. A ventilation pipe connection ring (102) is provided at the upper end of the ventilation module connection port (101). A ventilation pipe (103) is connected to the ventilation pipe connection ring (102). A one-way valve body (104) is connected to the upper end of the ventilation pipe (103). A valve body inlet (105) is connected to the upper end of the one-way valve body (104). A valve core push rod (106) is provided in the middle of the valve body inlet (105). A valve core (115) is provided at the lower end of the valve core push rod (106). A guide push frame (107) is provided at the upper end of the valve core push rod (106). Four guide rods (108) are connected to the lower end of the guide push frame (107). A guide sleeve (109) is provided on the outside of the valve body inlet (105). The guide sleeve (109) is connected to the lower side line of the guide rod (108).

2. The inflatable airbag quick-release mechanism for pipeline plugging according to claim 1, characterized in that: The lower end of the guide rod (108) is provided with a spring push plate (110), and the lower end of the spring push plate (110) is connected to a reset spring (111). The lower end of the reset spring (111) is connected to the upper surface of the ventilation module connection interface (101).

3. The inflatable airbag quick-release mechanism for pipeline plugging according to claim 1, characterized in that: The upper surface of the air inlet (101) of the ventilation module is provided with a housing (112), the upper end of the housing (112) is connected to an internal threaded connection port (113), the internal threaded connection port (113) is connected to an external threaded air inlet port (114), and the lower end of the external threaded air inlet port (114) is in contact with the upper surface of the guide pusher (107).

4. The quick-release mechanism for an inflatable airbag used for pipe plugging according to claim 1, characterized in that: The lower end of the ventilation module connection interface (101) is connected to an airbag interface (24), the airbag interface (24) is connected to an airbag (21), the lower part of the airbag (21) is provided with a tube interface (22), the upper end of the tube interface (22) is connected to a honeycomb inflation tube (23), and the upper end of the honeycomb inflation tube (23) is connected to the lower end of the ventilation tube (103).

5. A method of using an inflatable airbag quick-release mechanism for pipe plugging, characterized in that: it includes the inflatable airbag quick-release mechanism for pipe plugging as described in claims 1-4, and the specific operation is as follows: Step S1: During the sealing process, the airbag module (2) is directly inserted into the pipe (3), and then the external threaded air inlet (114) is connected to the air pump. After the air pump is started, the gas enters the valve body air inlet (105) through the external threaded air inlet (114). At this time, the gas impacts the valve core (115) and moves it downward, causing the valve core (115) to separate from the sealing surface of the valve body air inlet (105). The gas can then enter the ventilation pipe (103) through the one-way valve body (104). The ventilation pipe (103) delivers the gas to the honeycomb inflation pipe (23). The multi-channel structure of the honeycomb inflation pipe (23) allows the gas to be evenly distributed to various areas inside the airbag (21). The airbag (21) gradually expands under the action of gas pressure until it tightly adheres to the inner wall of the pipe (3), thus completing the sealing operation. After the sealing is completed, turn off the air pump and unscrew the external threaded air inlet (114). At this time, the elastic force of the reset spring (111) pushes the spring push plate (110) to move upward, driving the guide rod (108) and guide push frame (107) to reset. The valve core push rod (106) then pulls the valve core (115) upward, resealing the one-way valve body (104) to prevent gas leakage in the airbag (21). In step S2, when the mechanism needs to be disassembled, rotate the external threaded air inlet (114) to press the guide pusher (107) downwards, causing the valve core (115) to disengage from the sealing surface. Then connect the external threaded air inlet (114) to the suction pump. After the suction pump is started, the gas in the airbag (21) is extracted sequentially through the honeycomb inflation tube (23), the ventilation tube (103), the one-way valve body (104), and the external threaded air inlet (114). As the gas is gradually discharged, the airbag (21) contracts evenly under its own elasticity and the squeezing action of the inner wall of the pipe, and adheres tightly to the outer wall of the honeycomb inflation tube (23), avoiding the local accumulation situation when the traditional airbag deflates. After the airbag (21) is fully contracted, the ventilation module (1) can be pulled upwards directly to remove the airbag module (2) from the pipe (3) simultaneously. The entire disassembly and assembly process does not require any special tools, which greatly improves the response efficiency of emergency repair.

Images