Safety double-air-bag pipeline plugging mechanism

Abstract

The invention relates to the technical field of pipeline plugging mechanisms, in particular to a safety double-airbag pipeline plugging mechanism which comprises two plugging airbags sequentially arranged in the length direction of a drainage pipeline, supporting rods are fixedly arranged in the middles of the plugging airbags, and the plugging supporting rods are arranged in the length direction of the drainage pipeline. The supporting rods between every two adjacent plugging air bags are fixedly connected. The device has the effect of protecting the safety of workers when the plugging air bag is damaged.

Description

Technical Field

[0001] The present application relates to the technical field of a pipeline plugging mechanism, and in particular to a safe double-airbag pipeline plugging mechanism. Background Art

[0002] With the continuous advancement of my country's urbanization process, the integrity and functionality of urban drainage pipe systems, as an important part of urban infrastructure, are crucial to the normal operation of cities. However, due to long-term use, natural corrosion and improper human management, drainage pipe systems are often damaged and need to be repaired in a timely and effective manner to ensure the smooth operation of urban drainage systems.

[0003] A Chinese patent document with application number 2023231774959 discloses a drainage pipe airbag sealing device, including a support rod, an outer wall surface of the support rod is sleeved with a drainage pipe sealing airbag, both ends of the support rod are provided with connecting placement grooves, the inner wall of the connecting placement groove is provided with an internal thread, an inflation tube is fixedly connected to the bottom end of the inner side of the connecting placement groove, the inflation tube is connected to an inflation joint, and sealing covers are provided at both ends of the support rod. The sealing airbag is first inflated through the inflation tube so that the sealing airbag abuts against the inner wall surface of the drainage pipe, thereby completing the sealing of the drainage pipe, and then the sealing cover is threadedly connected to the connecting placement groove.

[0004] However, when the sealing airbag is damaged or ruptured, the water sealed in the drainage pipe can easily pose a threat to the safety of the workers. Summary of the invention

[0005] In order to protect the safety of workers when the sealing airbag is damaged, the present application provides a safe double-airbag pipeline sealing mechanism.

[0006] The present application provides a safe double-airbag pipeline blocking mechanism, which adopts the following technical solutions: A safety double-airbag pipe sealing mechanism comprises two sealing airbags arranged in sequence along the length direction of a drainage pipe, a support rod is fixedly arranged in the middle of the sealing airbag, the sealing support rod is arranged along the length direction of the drainage pipe, and the support rods between two adjacent sealing airbags are fixedly connected.

[0007] By adopting the above technical solution, when in use, the two blocking airbags are arranged in sequence in the length direction of the drainage pipe, and a support rod is fixedly arranged between the two blocking airbags and is also fixedly connected. The blocking airbag located upstream of the drainage pipe can be used to withstand the water pressure in the drainage pipe, and at the same time, the pressure can be transmitted to the other blocking airbag through the support rod, so that the two blocking airbags can generate support at the same time, and after the upstream blocking airbag is damaged, the latter blocking airbag can still keep blocking the sewage, thereby ensuring the safety of the staff.

[0008] Preferably, the support rod is a steel pipe, a connector is installed at one end of the steel pipe, a through opening is opened on the side wall of the connector, the ends of two adjacent support rods are respectively fixed at both ends of the connector, and the through opening is located in the area between two adjacent blocking airbags.

[0009] By adopting the above technical solution, a connector is installed at one end of the steel pipe, two adjacent support rods are fixed by the connector, and a through hole is opened on the side wall of the connector. When water is filled from the steel pipe, the area between the two sealing airbags can be filled with water. When the upstream sealing airbag is damaged, the water between the two sealing airbags can act as a buffer.

[0010] Preferably, a valve core is provided in the connector, an inner edge ring is provided on the inner wall of the connector, the valve core is used to cooperate with the inner edge ring, the valve core is in a normally closed state, and when the steel pipe along the upstream of the drainage pipe is connected to the connector, the valve core is in an open state. The connector is provided upstream of the steel pipe, and a hand valve is provided at the end of the steel pipe downstream of the drainage pipe away from the connector.

[0011] By adopting the above technical solution, a valve core is arranged in the connecting head, and the valve core can be in an open state after the upstream steel pipe is connected to the connecting head. A hand valve is arranged at one end of the steel pipe to seal the inside of the steel pipe. When it is necessary to stop the operation in the middle, the hand valve is opened to maintain normal drainage.

[0012] Preferably, a valve plate is provided at one end of the valve core, a sealing ring is provided at the connection between the valve plate and the valve core, the valve plate faces the downstream steel pipe, a spring is provided on the valve core for driving the valve plate to move toward the inner edge ring, and a through groove for connecting the two ends of the connecting head is opened on the side wall of the valve core.

[0013] By adopting the above technical solution, a sealing ring is provided at the connection between the valve plate and the valve core, and the two ends of the connecting head are closed by the sealing ring. The valve core is automatically moved to a closed state by a spring, and the valve core is automatically opened after the steel pipe is installed, so that multiple blocking air bags can be conveniently connected in sequence. At the same time, when drainage is required, the hand valve is opened, and the valve core automatically opens for drainage under the action of water pressure.

[0014] Preferably, an abutment frame is installed at one end of the valve core away from the valve plate, and the abutment frame is threadedly connected to the side wall of the valve core. When the steel pipe is inserted into the connecting head, the end of the steel pipe pushes the valve plate to move through the abutment frame to drive the valve core to an open state.

[0015] By adopting the above technical solution, an abutment frame is installed at one end of the valve core, and the abutment frame is threadedly connected to the valve core. When the end of the steel pipe abuts against the abutment frame, the valve core can be in an open state. When the abutment frame is rotated to move along the length direction of the valve core, the size of the valve core opening can be adjusted.

[0016] Preferably, a one-way valve is provided on the through port, and the guiding direction of the one-way valve is from the through port to the area between the two blocking airbags.

[0017] By adopting the above technical solution, a one-way valve is set on the opening, so that the water in the steel pipe can enter the blocking airbag. When draining water in the steel pipe, the water between the two blocking airbags is prevented from being directly discharged, thereby avoiding the need for multiple water fillings.

[0018] Preferably, an outlet pipe connected to the steel pipe is provided inside the blocking airbag, and a first pressure sensor and a solenoid valve are installed on the outlet pipe.

[0019] By adopting the above technical solution, a first pressure sensor and a solenoid valve are installed on the outlet pipe. The solenoid valve is used to open the outlet pipe to facilitate filling water into the blocking airbag through the copper tube. The first pressure sensor is used to detect the water pressure in the blocking airbag to alert the staff when the pressure in the blocking airbag is high.

[0020] Preferably, one end of the connector is fixed on the downstream steel pipe, and the other end is connected to the upstream steel pipe by a quick-release structure, the quick-release structure includes a sphere and a blocking ring, a accommodating hole is provided on the peripheral wall of the connector, the sphere is located in the accommodating hole, the blocking ring is sleeved on the outer wall of the connector, and when the blocking ring moves to a position opposite to the accommodating hole, the sphere abuts against the inner wall of the blocking ring, and the sphere is exposed from the other end of the accommodating hole, and a slot for the sphere to be inserted is provided on the side wall of the upstream steel pipe.

[0021] By adopting the above technical solution, one end of the connector is fixed to the downstream steel pipe, and the other end is connected to the upstream steel pipe through a quick-release structure. During the connection, the blocking ring can be slid along the connector, making it easier to disassemble and install the upstream steel pipe, thereby making the installation of the blocking airbag easier.

[0022] Preferably, a fixing ring is fixedly provided on the outer wall of the connector, a compression spring is provided between the fixing ring and the blocking ring, and the force exerted by the compression spring on the blocking ring is used to drive the blocking ring to move to a position facing the sphere.

[0023] By adopting the above technical solution, a fixing ring is provided on the outer wall of the connector, and a compression spring is abutted between the fixing ring and the blocking ring, so that the compression spring drives the blocking ring to a position blocking the ball to ensure a stable connection between the connector and the upstream steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the use status of the first embodiment of the present application; Figure 2 is a diagram of the internal structure of the blocking airbag in the first embodiment of the present application; Figure 3 It is a schematic diagram of the position of the valve core in the first embodiment of the present application; Figure 4 It is a structural diagram of the valve core in the first embodiment of the present application; Figure 5 It is a schematic diagram of the position of the valve core in the second embodiment of the present application.

[0025] Explanation of the reference numerals in the accompanying drawings: 1. Sealing airbag; 2. Steel pipe; 21. Outlet pipe; 22. First pressure sensor; 23. Solenoid valve; 24. Wireless transmission module; 25. Second pressure sensor; 3. Drainage pipe; 4. Connector; 41. Through port; 42. Chamfer; 43. Accommodating hole; 44. Inner edge ring; 5. Hand valve; 51. One-way valve; 6. Valve core; 61. Valve plate; 62. Sealing ring; 63. Through groove; 64. Abutment frame; 65. Spring; 7. Quick-release structure; 71. Ball; 72. Blocking ring; 8. Slot; 9. Fixing ring; 91. Compression spring. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1-5 This application is described in further detail.

[0027] The embodiment of the present application discloses a safe double-airbag pipeline blocking mechanism.

[0028] Embodiment 1 This embodiment discloses a safe double-airbag pipeline blocking mechanism, referring to Figure 1, including at least two blocking airbags 1 arranged along the length direction of the drainage pipe 3, a support rod is arranged in the middle of the two blocking airbags 1, the support rod is a hollow steel pipe 2, the blocking airbag 1 is fixed on the outer wall of the support rod, the support rod is arranged along the length direction of the drainage pipe 3, the blocking airbag 1 can be connected with the inside of the support rod, and the blocking airbag 1 can be inflated or filled with water by the end of the support rod, or a trachea can be connected to the blocking airbag 1 to connect the two blocking airbags 1, and then the blocking airbag 1 is inflated through the trachea. During installation, the two blocking airbags 1 are placed in the drainage pipe 3, and then the blocking airbags 1 are inflated, so that the blocking airbags 1 are expanded and abutted against the inside of the drainage pipe 3, so that the upstream of the drainage pipe 3 can be blocked, and the staff can repair or maintain the drainage pipe 3 downstream of the blocking airbag 1. When the blocking airbag 1 that contacts the sewage in the drainage pipe 3 is broken, the other blocking airbag 1 can block the sewage, avoiding direct impact on the staff behind the blocking airbag 1, and increasing safety protection. At the same time, there is no need to install a bracket on the two blocking airbags 1 during use, thereby improving the installation convenience of the blocking airbags 1. The two blocking airbags 1 are connected by a support rod in the middle, so that the two blocking airbags 1 can transmit the force through the support rod. The blocking airbag 1 close to the sewage is mainly used for blocking, and the other blocking airbag 1 can support the previous blocking airbag 1. At the same time, the two blocking airbags 1 can withstand higher water pressure and will not move along the drainage pipe 3.

[0029] refer to Figure 1 and Figure 2A steel pipe 2 is arranged in each plugging airbag 1. A connector 4 is installed at one end of the steel pipe 2. A through hole 41 is provided on the side wall of the connector 4. The two ends of the connector 4 are respectively used to connect two steel pipes 2. The through hole 41 is communicated with the inside of the connector 4. Two adjacent plugging airbags 1 can be connected through the connector 4. The steel pipe 2 and the connector 4 can be fixedly connected by a thread. Under the action of the connector 4, three or more plugging airbags 1 can be connected in sequence along the length direction of the drainage pipe 3. The corresponding number is set according to the possible water pressure in the drainage pipe 3. The higher the water pressure, the more plugging airbags 1 are required. A hand valve 5 is arranged at one end of the multiple interconnected steel pipes 2 away from the sewage. The hand valve 5 is used to close or open the steel pipe 2. The hand valve 5 is used to connect the equipment for adding gas or water. When adding gas or water, the hand valve 5 is opened to expand the blocking airbag 1, and then the hand valve 5 is closed and the connecting equipment is removed. At the same time, when the staff stops to maintain the drainage pipe 3, the hand valve 5 can be opened to allow the internal sewage to be discharged from the steel pipe 2 to ensure the normal operation of the drainage pipe 3. When the hand valve 5 is opened to maintain the normal operation of the drainage pipe 3, a pipe can be connected to the hand valve 5, and the pipe is set along the downstream of the drainage pipe 3, so that the sewage can pass the impact on the maintenance area of ​​the drainage pipe 3. At the same time, a one-way valve 51 is installed at the position of the through port 41. The one-way valve 51 is located in the area between two adjacent blocking airbags 1. The conduction direction of the one-way valve 51 is from the through port 41 to the area between the two blocking airbags 1. When water is filled into the blocking airbag 1 from the steel pipe 2, the airbag expands and the one-way valve 51 will also open under the action of water pressure, so that water can enter the area between the two blocking airbags 1. Since the water fills the position between the two blocking airbags 1, the force of the previous blocking airbag 1 can be transferred to the next blocking airbag 1 under the action of water, and the explosion caused by the rupture of the blocking airbag 1 can also be buffered under the action of water, so as to reduce the damage of the ruptured object to the other blocking airbag 1.

[0030] An outlet pipe 21 is provided on the side wall of each steel pipe 2 and located in the blocking airbag 1. A first pressure sensor 22 and a solenoid valve 23 are installed on the outlet pipe 21. The first pressure sensor 22 is connected to a wireless transmission module 24, and the solenoid valve 23 is also controlled by wireless transmission. The first pressure sensor 22 is installed on a side of the solenoid valve 23 away from the steel pipe 2. When it is necessary to fill water into the corresponding blocking airbag 1, the solenoid valve 23 is opened, and then water is filled from the steel pipe 2 into the blocking airbag 1 to expand the blocking airbag 1. When the blocking airbag 1 is filled with water, the solenoid valve 23 is in a closed state to prevent the blocking airbag 1 from leaking water from the outlet pipe 21. At the same time, the first pressure sensor 22 detects the pressure in the blocking airbag 1. When the first pressure sensor 22 detects that the pressure in the blocking airbag 1 is too high, it can transmit the signal to the corresponding receiving device, such as a mobile phone, through wireless transmission, so that the staff can receive the reminder in time and stay away from the working area. At the same time, a second pressure sensor 25 is arranged at a position of the steel pipe 2 close to the connecting head 4. The second pressure sensor 25 is also connected to the wireless transmission module 24. The water pressure between two adjacent blocking airbags 1 is detected by the second pressure sensor 25, so as to understand the changes in the force transmitted between the current blocking airbags 1, thereby providing a reference for the staff to judge the situation of sewage retention.

[0031] refer to Figure 3 and Figure 4The connector 4 is provided with a valve core 6 inside. The valve core 6 is of a cylindrical structure. A valve plate 61 is provided at one end of the valve core 6. A sealing ring 62 is sleeved at the connection between the valve core 6 and the valve plate 61. An inner edge ring 44 is integrally provided at the middle position of the inner wall of the connector 4. The center of the inner edge ring 44 is used to penetrate the valve core 6. A plurality of through grooves 63 are provided on the peripheral wall of the valve core 6. The through grooves 63 penetrate the side wall of the valve core 6. The installation positions of the through grooves 63 and the sealing ring 62 are staggered and the through grooves 63 are located at one end of the valve core 6 close to the valve plate 61. A chamfer 42 is provided on the side of the inner edge ring 44 facing the sealing ring 62. The position of the chamfer 42 is convenient for sealing with the sealing ring 62. When the sealing ring 62 is separated from the inner edge ring 44, the through grooves 63 can connect the two sides of the inner edge ring 44, so that the two ends of the connector 4 are connected through the valve core 6. During installation, one end of the valve plate 61 faces the downstream of the drainage pipe 3, and the through port 41 is located on the side of the inner edge ring 44 away from the valve plate 61. The end of the valve core 6 away from the valve plate 61 is installed on the abutment frame 64, and a spring 65 is sleeved on the valve core 6. One end of the spring 65 abuts against the abutment frame 64, and the other end abuts against the inner edge ring 44. The force of the spring 65 is used to drive the valve plate 61 to approach the inner edge ring 44, so that the sealing ring 62 and the chamfer 42 are sealed. The abutment frame 64 is connected to the outer wall of the valve core 6 by threaded connection, and the outer side of the abutment frame 64 is used to extend toward the inner wall of the connector 4. When the upstream steel pipe 2 is connected to the connector 4, the end of the steel pipe 2 abuts against the abutment frame 64 and pushes the internal valve core 6 to move, so that the two ends of the connector 4 are connected through the through groove 63. When the upstream steel pipe 2 is not connected, the sealing ring 62 on the valve core 6 disconnects the two ends of the connector 4. When the water pressure on the sewage side is too high, the valve core 6 can be opened to release part of the sewage, or the hand valve 5 can be directly opened, and the sewage automatically opens the valve core 6 to maintain the normal operation of the drainage pipe 3.

[0032] The working process of this embodiment: Connect the steel pipes 2 of multiple sealing air bags 1 in sequence, and then connect the equipment for filling the sealing air bags 1 with water to the downstream end of the steel pipes 2, open the solenoid valves 23 corresponding to the sealing air bags 1, and make the sealing air bags 1 expand from the upstream to the downstream of the drainage pipe 3 in sequence to seal the drainage pipe 3, and then the staff can carry out construction in the downstream area.

[0033] Embodiment 2: This embodiment discloses a safe double-airbag pipeline blocking mechanism, referring to Figure 5The difference from the first embodiment is that one end of the connector 4 can be fixedly connected to the downstream steel pipe 2 by means of threads or welding to keep the connector 4 installed on the steel pipe 2, and the other end is connected to the upstream steel pipe 2 by means of a quick-release structure 7. The quick-release structure 7 includes a sphere 71 and a blocking ring 72. A plurality of receiving holes 43 are provided on the side wall of the connector 4 for connecting to the upstream steel pipe 2. The sphere 71 is placed in the receiving hole 43 and the sphere 71 is exposed from both ends of the receiving hole 43. The blocking ring 72 is sleeved on the outer wall of the connecting head 4. When the blocking ring 72 moves to the position of the ball 71 along the length direction of the connecting head 4, the ball 71 abuts against the inner wall of the blocking ring 72, and the ball 71 is exposed from the other end of the accommodating hole 43. A slot 8 is provided on the side wall of one end of the upstream steel pipe 2 for installation in the connecting head 4. After the steel pipe 2 is inserted into the connecting head 4 and abuts against the abutting frame 64, the slot 8 is aligned with the position of the ball 71, so that the ball 71 is embedded in the slot 8 to block the movement of the steel pipe 2. When the upstream steel pipe 2 needs to be removed, it is necessary to first push the blocking ring 72 along the length direction of the connecting head 4 to stagger the blocking ring 72 and the ball 71, so that the ball 71 can move in the accommodating hole 43, and then the ball 71 can be moved out of the slot 8, and the steel pipe 2 can be removed from the connecting head 4. A fixing ring 9 is fixedly arranged on the outer wall of the connector 4, and a compression spring 91 is arranged between the fixing ring 9 and the blocking ring 72, one end of the compression spring 91 abuts against the fixing ring 9, and the other end abuts against the blocking ring 72, and the force of the compression spring 91 is used to drive the blocking ring 72 to a position facing the ball 71. When in use, the upstream steel pipe 2 can be quickly disassembled or installed from the position of the quick-release structure 7.

[0034] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A safe double-airbag pipeline blocking mechanism, characterized by: It comprises two blocking airbags (1) arranged in sequence along the length direction of a drainage pipe (3), a support rod being fixedly arranged in the middle of the blocking airbag (1), the blocking support rod being arranged along the length direction of the drainage pipe (3), and the support rods between two adjacent blocking airbags (1) being fixedly connected.

2. A safe double-airbag pipeline blocking mechanism according to claim 1, characterized in that: The support rod is a steel pipe (2), a connector (4) is mounted on one end of the steel pipe (2), a through opening (41) is provided on a side wall of the connector (4), ends of two adjacent support rods are respectively fixed to two ends of the connector (4), and the through opening (41) is located in a region between two adjacent blocking airbags (1).

3. A safe double-airbag pipeline blocking mechanism according to claim 2, characterized in that: A valve core (6) is arranged in the connector (4), and an inner edge ring (44) is arranged on the inner wall of the connector (4). The valve core (6) is used to cooperate with the inner edge ring (44). The valve core (6) is in a normally closed state. When the steel pipe (2) along the upstream of the drainage pipe (3) is connected to the connector (4), the valve core (6) is in an open state. The connector (4) is arranged upstream of the steel pipe (2), and a hand valve (5) is arranged at one end of the steel pipe (2) along the downstream of the drainage pipe (3) away from the connector (4).

4. A safe double-airbag pipeline blocking mechanism according to claim 3, characterized in that: A valve plate (61) is provided at one end of the valve core (6), a sealing ring (62) is provided at the connection between the valve plate (61) and the valve core (6), the valve plate (61) faces the downstream steel pipe (2), a spring (65) is sleeved on the valve core (6) for driving the valve plate (61) to move toward the inner edge ring (44), and a through groove (63) for connecting the two ends of the connector (4) is provided on the side wall of the valve core (6).

5. A safe double-airbag pipeline blocking mechanism according to claim 4, characterized in that: An abutment frame (64) is installed at one end of the valve core (6) away from the valve plate (61), and the abutment frame (64) is threadedly connected to the side wall of the valve core (6). When the steel pipe (2) is inserted into the connector (4), the end of the steel pipe (2) pushes the valve plate (61) to move through the abutment frame (64), driving the valve core (6) to be in an open state.

6. A safe double-airbag pipeline blocking mechanism according to any one of claims 2 to 5, characterized in that: A one-way valve (51) is provided on the through port (41), and the guiding direction of the one-way valve (51) is from the through port (41) to the area between the two blocking airbags (1).

7. A safe double-airbag pipeline blocking mechanism according to claim 5, characterized in that: An outlet pipe (21) communicating with the steel pipe (2) is arranged inside the blocking airbag (1), and a first pressure sensor (22) and a solenoid valve (23) are installed on the outlet pipe (21).

8. A safe double-airbag pipeline blocking mechanism according to claim 5, characterized in that: One end of the connector (4) is fixed to the downstream steel pipe (2), and the other end is connected to the upstream steel pipe (2) by a quick-release structure (7). The quick-release structure (7) comprises a ball (71) and a blocking ring (72). A receiving hole (43) is provided on the peripheral wall of the connector (4). The ball (71) is located in the receiving hole (43). The blocking ring (72) is sleeved on the outer wall of the connector (4). When the blocking ring (72) moves to a position facing the receiving hole (43), the ball (71) abuts against the inner wall of the blocking ring (72). At the same time, the ball (71) is exposed from the other end of the receiving hole (43). A slot (8) for the ball (71) to be inserted is provided on the side wall of the upstream steel pipe (2).

9. A safe double-airbag pipeline blocking mechanism according to claim 8, characterized in that: A fixing ring (9) is fixedly arranged on the outer wall of the connector (4), and a compression spring (91) is arranged between the fixing ring (9) and the blocking ring (72). The force exerted by the compression spring (91) on the blocking ring (72) is used to drive the blocking ring (72) to move to a position directly opposite to the ball (71).

Images