Leakage-proof connecting structure for gas pipeline

Abstract

The utility model discloses a gas pipeline leakproof connecting structure which comprises two arc-shaped plates and a methane sensor, each arc-shaped plate is connected to the methane sensor in a rotating mode, the methane sensor is installed on the top face of one arc-shaped plate, a warning lamp is arranged on the top face of the methane sensor, and the other arc-shaped plate is connected to the other arc-shaped plate in a rotating mode. When the gas pipeline joint sealing device is used, operation is easy, sealing of the gas pipeline joint is enhanced, a user can be reminded of the gas leakage position through the warning lamp, the leaked pipeline joint is automatically blocked, and the situation that gas continuously leaks to the outside to cause danger is avoided.

Description

Technical Field

[0001] The utility model relates to the field of gas pipeline safety devices, in particular to a gas pipeline leakage-proof connection structure. Background Art

[0002] The gas pipeline is a special pipeline for transporting combustible gas. It uses a metal gas pipe hose to replace the traditional snap-on rubber hose. The gas pipe has the characteristics of easy installation, reliable connection, corrosion resistance, no gas blockage, good flexibility and long service life.

[0003] However, when the gas pipeline is used for a long time, the sealing gasket will age, be damaged, or the connection will become loose due to external vibration, which will cause gas leakage at the connection of the gas pipeline. Although the existing anti-leakage device can detect gas leakage, it cannot block the leakage site and can only warn the user. If the user is not on site, the gas will continue to leak, causing danger. Utility Model Content

[0004] The utility model aims to solve the problems in the background technology and proposes a gas pipeline leakage-proof connection structure.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A gas pipeline leakage prevention connection structure includes two arc plates and a methane sensor, and each arc plate is rotatably connected to the methane sensor, a methane sensor is installed on the top surface of one of the arc plates, a warning light is provided on the top surface of the methane sensor, and the warning light is electrically connected to the methane sensor, a sealing gasket is bonded to the inner side of each arc plate, an airbag is installed on the inner side of each arc plate, and the airbag is located on the outer side of the sealing gasket at a corresponding position, the two arc plates are fixed to each other by a fastening assembly, a vacuum mechanism is provided on one of the arc plates, and the vacuum mechanism is communicated with each airbag.

[0007] Preferably, the vacuum mechanism includes a vacuum box, and the vacuum box is connected to each airbag, and the vacuum box is fixedly installed on the outer side of the corresponding arc plate. A reciprocating screw is rotatably connected inside the vacuum box, and a screw sleeve is threaded on the reciprocating screw. A piston is installed on the screw sleeve through a plurality of connecting rods, and the screw sleeve and the piston are both slidably connected to the vacuum box.

[0008] Preferably, the air extraction box is connected to an air inlet pipe and an air outlet pipe respectively, and both the air inlet pipe and the air outlet pipe are installed with a one-way valve.

[0009] Preferably, each of the airbags is connected to a connecting pipe, and each connecting pipe penetrates the corresponding arc-shaped plate and extends outward, and each connecting pipe is connected to the air outlet pipe.

[0010] Preferably, a motor is fixedly mounted on the outside of the vacuum box, and the output shaft of the motor passes through the vacuum box and is connected to the reciprocating screw, and the motor is electrically connected to the methane sensor.

[0011] Preferably, a baffle is fixedly mounted on one end of the reciprocating screw away from the motor, and the screw sleeve is square in shape.

[0012] Preferably, the fastening assembly includes a plurality of screws, each screw is threadedly connected to each arc-shaped plate, and the plurality of screws are symmetrically arranged.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model achieves the purpose of enhancing the sealing of the gas pipeline connection and reducing the possibility of leakage by arranging two arc-shaped plates, sealing gaskets, fastening components and other devices.

[0015] 2. The utility model realizes the purpose of triggering the warning light to light up after the methane sensor detects the gas by arranging methane sensors, warning lights and other devices, thereby reminding users of the location of the gas leakage.

[0016] 3. The utility model is provided with methane sensors, air extraction mechanisms, air bags and other devices, so that when gas leaks, the air bag is inflated through the air extraction mechanism, and then the sealing gasket is tightly wrapped to automatically block the leaking pipe connection, so as to prevent the gas from continuously leaking to the outside and causing danger.

[0017] In summary, the utility model is easy to operate when in use, enhances the sealing of the gas pipeline connection, can remind users of the location of gas leakage through a warning light, and automatically seals the leaking pipeline connection to prevent continuous leakage of gas to the outside world and cause danger. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] FIG1 is a schematic structural diagram of a gas pipeline leakage-proof connection structure proposed by the present invention;

[0019] FIG2 is a schematic diagram of a rotating shaft connection structure of a gas pipeline leakage prevention connection structure proposed by the present invention;

[0020] FIG3 is a schematic cross-sectional view of the structure of an exhaust box of a gas pipeline leakage-proof connection structure proposed by the present invention.

[0021] In the figure: 1 arc plate, 2 methane sensor, 3 warning light, 4 connecting pipe, 5 air bag, 6 sealing gasket, 7 rotating shaft, 8 screw, 9 vacuum box, 10 motor, 11 air inlet pipe, 12 air outlet pipe, 13 reciprocating screw, 14 screw sleeve, 15 connecting rod, 16 piston, 17 baffle. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] 1-3, a gas pipeline leakage prevention connection structure includes two arc plates 1 and a methane sensor 2, and each arc plate 1 is rotatably connected to the methane sensor 2, a methane sensor 2 is installed on the top surface of one of the arc plates 1, a warning light 3 is provided on the top surface of the methane sensor 2, and the warning light 3 is electrically connected to the methane sensor 2, and then when the methane sensor 2 detects a gas leak, the warning light 3 is triggered to light up, and then the user is reminded, a sealing gasket 6 is bonded to the inner side of each arc plate 1, and then the first sealing is performed on the pipeline connection to prevent leakage, an airbag 5 is installed on the inner side of each arc plate 1, and the airbag 5 is located on the outer side of the sealing gasket 6 corresponding to the position, the two arc plates 1 are fixed by a fastening assembly, the fastening assembly includes a plurality of screws 8, and each screw 8 is threadedly connected to each arc plate 1, and the plurality of screws 8 are symmetrically arranged, and then the two arc plates 1 can be fastened by turning the screws 8 to wrap the pipeline connection;

[0024] A vacuum mechanism is provided on one of the arc plates 1, and the vacuum mechanism is connected with each air bag 5, the vacuum mechanism includes a vacuum box 9, and the vacuum box 9 is connected with each air bag 5, and the vacuum box 9 is fixedly installed on the outer side of the arc plate 1 at a position corresponding to the position, and a motor 10 is fixedly installed on the outer side of the vacuum box 9, and the output shaft of the motor 10 passes through the vacuum box 9 and is connected with the reciprocating screw 13, and the motor 10 is electrically connected with the methane sensor 2, and the gas leakage is detected by the methane sensor 2 and the motor 10 is started, and when the gas leakage is not detected continuously, the motor 10 is started. The motor 10 is turned off, and a baffle 17 is fixedly installed at one end of the reciprocating screw 13 away from the motor 10, thereby preventing the screw sleeve 14 from being separated from the reciprocating screw 13. The reciprocating screw 13 is rotatably connected in the air pumping box 9, and the reciprocating screw 13 is threadedly connected with the screw sleeve 14. The screw sleeve 14 is square in shape, and the screw sleeve 14 is limited to prevent it from rotating. The screw sleeve 14 is installed with a piston 16 through a plurality of connecting rods 15, and the screw sleeve 14 and the piston 16 are both slidably connected to the air pumping box 9, thereby driving the piston 16 to slide back and forth in the air pumping box 9;

[0025] The air suction box 9 is respectively connected to an air inlet pipe 11 and an air outlet pipe 12, and both the air inlet pipe 11 and the air outlet pipe 12 are installed with a one-way valve, so that the gas flow direction of the air inlet pipe 11 and the air outlet pipe 12 is fixed. The air inlet pipe 11 allows outside air to enter the air suction box 9, and pushes the air into the connecting pipe 4 through the air outlet pipe 12. Each air bag 5 is connected to a connecting pipe 4, and each connecting pipe 4 passes through the corresponding arc plate 1 and extends outward, and each connecting pipe 4 is connected to the air outlet pipe 12.

[0026] When the utility model is used, the two fasteners 1 are firstly rotated to wrap the connection of the pipe, and the two fasteners 1 are tightly fixed by the fastening assembly, and then the pipe connection is sealed by the sealing gasket 6 inside each fastener 1;

[0027] If the seal of the sealing gasket 6 fails, the gas leakage is detected by the methane sensor 2, and the warning light 3 is triggered to remind the user that the gas leakage occurs. At the same time, the motor 10 is started, and the reciprocating screw 13 and the screw sleeve 14 cooperate to drive the piston 16 to slide back and forth in the vacuum box 9, and then each air bag 5 is inflated through the air inlet pipe 11 and the air outlet pipe 12, and then each sealing gasket 6 is wrapped around. The more the air bag 5 is inflated, the stronger the seal is, and the leaking pipeline connection is blocked to prevent the gas from leaking to the outside and causing danger. At the same time, when the methane sensor 2 does not detect the gas for a period of time, the motor 10 is turned off, and the reciprocating screw 13 and the screw sleeve 14 are self-locking, so that each air bag 5 maintains the current state and continues to block the pipeline connection.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A gas pipeline anti-leakage connection structure, comprising two arc-shaped plates (1) and a methane sensor (2), wherein each arc-shaped plate (1) is rotatably connected to the methane sensor (2), characterized in that: A methane sensor (2) is installed on the top surface of one of the arc-shaped plates (1), a warning light (3) is provided on the top surface of the methane sensor (2), and the warning light (3) is electrically connected to the methane sensor (2), a sealing gasket (6) is bonded to the inner side of each of the arc-shaped plates (1), an airbag (5) is installed on the inner side of each of the arc-shaped plates (1), and the airbag (5) is located on the outer side of the sealing gasket (6) at a corresponding position, the two arc-shaped plates (1) are fixed to each other by a fastening assembly, and an exhaust mechanism is provided on one of the arc-shaped plates (1), and the exhaust mechanism is connected to each of the airbags (5).

2. A gas pipeline anti-leakage connection structure according to claim 1, characterized in that: The air extraction mechanism comprises an air extraction box (9), and the air extraction box (9) is connected to each air bag (5), and the air extraction box (9) is fixedly installed on the outer side of the corresponding arc plate (1), and a reciprocating screw (13) is rotatably connected inside the air extraction box (9), and a screw sleeve (14) is threadedly connected to the reciprocating screw (13), and a piston (16) is installed on the screw sleeve (14) through a plurality of connecting rods (15), and the screw sleeve (14) and the piston (16) are both slidably connected to the air extraction box (9).

3. A gas pipeline anti-leakage connection structure according to claim 2, characterized in that: The air extraction box (9) is connected to an air inlet pipe (11) and an air outlet pipe (12) respectively, and both the air inlet pipe (11) and the air outlet pipe (12) are equipped with a one-way valve.

4. A gas pipeline anti-leakage connection structure according to claim 3, characterized in that: Each of the airbags (5) is connected to a connecting pipe (4), and each connecting pipe (4) penetrates the corresponding arc-shaped plate (1) and extends outwards, and each connecting pipe (4) is connected to an air outlet pipe (12).

5. A gas pipeline anti-leakage connection structure according to claim 4, characterized in that: A motor (10) is fixedly mounted on the outer side of the vacuum box (9), and an output shaft of the motor (10) passes through the vacuum box (9) and is connected to the reciprocating screw (13), and the motor (10) is electrically connected to the methane sensor (2).

6. A gas pipeline anti-leakage connection structure according to claim 5, characterized in that: A baffle (17) is fixedly mounted on one end of the reciprocating screw (13) away from the motor (10), and the screw sleeve (14) is in a square shape.

7. A gas pipeline anti-leakage connection structure according to claim 6, characterized in that: The fastening assembly comprises a plurality of screws (8), each screw (8) is threadedly connected to each arc-shaped plate (1), and the plurality of screws (8) are symmetrically arranged.

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