A safety valve to prevent air leakage

Abstract

The utility model discloses an anti-leakage safety valve, which belongs to the technical field of valves and comprises a valve body, wherein the inlet end and the outlet end of the valve body are both connected and installed with a port pipe, the end of the port pipe is movably provided with a connecting pipe, and the outer surface of the connecting pipe and the outer surface of the port pipe are both fixedly installed with a connecting flange; by arranging a connecting metal gasket for use in conjunction with an alignment plug plate, the connecting metal gasket can be supported and limited to avoid the phenomenon of misalignment, displacement and shaking, thereby ensuring a good seal, and a protective cover is used in conjunction with a vent pipe, a sliding rod, a piston plate, a sliding plate, a resistance plate and a buzzer, when a gas leak occurs, the gas will be transported through the vent pipe and drive the piston plate to move, and the piston plate drives the sliding plate to drive the resistance plate to move through the sliding rod, thereby driving the resistance plate to touch the buzzer, and the buzzer is used to give an alarm, thereby effectively avoiding large-scale leakage and achieving a protective effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves, and in particular relates to an air leakage-proof safety valve. Background Art

[0002] Valves are pipe accessories used to open and close pipelines, control flow direction, and adjust and control the parameters of the conveying medium, such as temperature, pressure, and flow. According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc. Valves are control components in fluid conveying systems, and have functions such as shut-off, regulation, flow diversion, backflow prevention, pressure stabilization, flow diversion, or overflow pressure relief.

[0003] However, existing valves are sealed with pipes through connecting gaskets during use. After long-term use, the connecting gaskets are easily worn and misaligned, which in turn easily leads to seal failure, resulting in air leakage. In addition, there is a lack of necessary filtering devices for the circulating medium. Particulate matter mixed in the circulating medium can easily enter the valve and cause wear of the internal parts of the valve. There are certain limitations in use. Utility Model Content

[0004] The utility model aims to provide an anti-leakage safety valve to solve the problem that the existing valves proposed in the above background technology are sealed with the pipeline by connecting gaskets during use, and the connecting gaskets are easily worn and misaligned after long-term use, which can easily lead to sealing failure, thereby causing air leakage, and there is a lack of necessary filtering devices for the circulating medium. Particulate matter mixed in the circulating medium can easily enter the interior of the valve and cause wear of the internal parts of the valve, resulting in certain limitations in use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-leakage safety valve, comprising a valve body, the inlet end and the outlet end of the valve body are both connected and installed with a port pipe, the end of the port pipe is movably provided with a connecting pipe, the outer surface of the connecting pipe and the outer surface of the port pipe are both fixedly installed with a connecting flange, a connecting metal gasket is provided between the connecting pipe and the port pipe, a plurality of screws are passed through between the connecting metal gasket and the two connecting flanges, nuts are threadedly installed on the outer surface of the screws, a protective cover is fixedly installed on the outer surface of the connecting flange, and the two protective covers are arranged relatively and mutually They are used in conjunction with each other, one of the ventilation pipes is installed with a ventilation pipe passing through it, the two ventilation pipes are connected and connected by a same mounting shell, the mounting shell is fixed to the side of the valve body, a sliding plate is slidably installed in the mounting shell, a resistance plate is fixedly installed on the lower surface of the sliding plate, a buzzer used in conjunction with the resistance plate is fixedly installed on the inner wall of the mounting shell, a sliding rod is fixedly installed on the upper surface of the sliding plate, the sliding rod slides through and extends to the inside of the ventilation pipe and is fixedly installed with a piston plate, the piston plate is sealingly slidably installed on the inner wall of the ventilation pipe, and a filter cartridge is movably arranged inside the port pipe located at the inlet end of the valve body.

[0006] By adopting the above scheme, by setting a connecting metal gasket in conjunction with the positioning plug plate, the connecting metal gasket can be supported and limited to avoid the phenomenon of dislocation, displacement and shaking, and ensure good sealing. The protective cover is used in conjunction with the vent pipe, sliding rod, piston plate, sliding plate, contact plate and buzzer. When a gas leak occurs, the gas will be transported through the vent pipe and drive the piston plate to move. The piston plate drives the sliding plate to drive the contact plate to move through the sliding rod, and then drives the contact plate to touch the buzzer. The buzzer is used to give an alarm, which effectively avoids large-scale leakage and has a good protective effect. By setting a filter cartridge, particulate matter mixed in the circulating medium can be filtered to prevent particulate matter from entering the valve body and causing damage to components. The motor is used to drive the cleaning brush to rotate, so that the filter cartridge can be cleaned to avoid mesh blockage affecting the medium circulation. The assembly sleeve is combined with the assembly bolts to facilitate the subsequent disassembly and assembly of the cleaning brush.

[0007] In the above solution, it should be noted that the motor and the buzzer are both electrically connected to the external power supply.

[0008] As a preferred implementation, a plurality of alignment plates are fixedly mounted on the side of the connecting metal gasket, a plurality of alignment slots are opened on the side of the connecting flange, and the alignment plates and the alignment slots are used in coordination.

[0009] By adopting the above solution, the alignment plug plate is used in conjunction with the alignment slot to limit the connection metal gasket, effectively avoiding the problem of wear and dislocation of the connection metal gasket leading to sealing failure.

[0010] As a preferred implementation, a sealing ring is attached to the side of one of the protective covers, and the side of the sealing ring fits with the side of the other protective cover.

[0011] By adopting the above solution, a good sealing effect between the two protective covers can be ensured by setting the sealing ring.

[0012] As a preferred embodiment, a plurality of guide rods are fixedly mounted on the inner wall of the mounting shell, the sliding plate is slidably mounted on the outer surface of the guide rods, a spring is sleeved on the outside of the guide rods, and both ends of the spring are fixedly connected to the inner wall of the mounting shell and the surface of the sliding plate respectively.

[0013] By adopting the above scheme, the guide rod can support the up and down movement of the sliding plate, thereby ensuring the normal cooperation between the contact plate and the buzzer. When the sliding plate moves downward, the spring is in a deformed state, so the reverse force of the spring can be used to drive the sliding plate to quickly reset, thereby improving the convenience of operation.

[0014] As a preferred embodiment, a plurality of limit plugs are fixedly mounted on the outer surface of the filter cartridge, and a plurality of limit slots for inserting the limit plugs are provided on the inner wall of the port tube.

[0015] By adopting the above solution, the limiting plug plate is used in conjunction with the limiting slot to support and limit the filter cartridge, thereby preventing the filter cartridge from shaking or shifting.

[0016] As a preferred embodiment, a mounting bracket is fixedly installed on the inner wall of the filter cartridge, a motor is fixedly installed on the side of the mounting bracket, an assembly sleeve is provided on the outer surface of the output shaft of the motor, a cleaning brush is fixedly installed on the side of the assembly sleeve, the bristles of the cleaning brush are in contact with the inner wall of the filter cartridge, and an assembly bolt is threadedly installed between the assembly sleeve and the output shaft of the motor.

[0017] By adopting the above solution, the cleaning brush is driven by a motor to rotate, so that the filter cartridge can be cleaned to prevent mesh blockage from affecting the flow of the medium. The assembly sleeve cooperates with the assembly bolts to facilitate the subsequent disassembly and assembly of the cleaning brush.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The anti-leakage safety valve is provided with a connecting metal gasket for use with an alignment plug plate, which can support and limit the connecting metal gasket to avoid the phenomenon of dislocation, displacement and shaking, and ensure good sealing. The protective cover is used in conjunction with the vent pipe, sliding rod, piston plate, sliding plate, contact plate and buzzer. When a leak occurs, the gas will be transported through the vent pipe and drive the piston plate to move. The piston plate drives the sliding plate to drive the contact plate to move through the sliding rod, and then drives the contact plate to touch the buzzer. The buzzer is used to give an alarm, which effectively avoids large-scale leakage and has a good protective effect.

[0020] The anti-leakage safety valve can filter particulate matter mixed in the circulating medium by setting a filter cartridge to prevent the particulate matter from entering the valve body and causing damage to components. The filter cartridge can be cleaned by driving the cleaning brush to rotate by a motor to avoid mesh clogging that affects the circulation of the medium. The assembly sleeve cooperates with the assembly bolts to facilitate the subsequent disassembly and assembly of the cleaning brush. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model;

[0022] Figure 2 This is a structural schematic diagram of the port pipe, connecting metal gasket and connecting pipe of the utility model;

[0023] Figure 3 This is a schematic structural diagram of the cross section of the filter cartridge of the utility model;

[0024] Figure 4 It is a structural schematic diagram of the installation shell section of the utility model.

[0025] In the figure: 1. Valve body; 2. Port pipe; 3. Connecting pipe; 4. Connecting flange; 5. Connecting metal gasket; 6. Screws; 7. Nuts; 8. Protective cover; 9. Ventilation pipe; 10. Mounting shell; 11. Sliding plate; 12. Resistance plate; 13. Buzzer; 14. Sliding rod; 15. Piston plate; 16. Filter cartridge; 17. Alignment plug plate; 18. Sealing ring; 19. Guide rod; 20. Spring; 21. Limit plug plate; 22. Mounting bracket; 23. Motor; 24. Cleaning brush; 25. Assembly sleeve; 26. Assembly bolt. DETAILED DESCRIPTION

[0026] See also Figure 1-4The utility model provides an anti-leakage safety valve, including a valve body 1, the inlet end and the outlet end of the valve body 1 are both connected and installed with a port pipe 2, the end of the port pipe 2 is movably provided with a connecting pipe 3, the outer surface of the connecting pipe 3 and the outer surface of the port pipe 2 are both fixedly installed with a connecting flange 4, a connecting metal gasket 5 is provided between the connecting pipe 3 and the port pipe 2, a plurality of screws 6 are penetrated between the connecting metal gasket 5 and the two connecting flanges 4, the outer surface of the screw 6 is threadedly installed with a nut 7, the outer surface of the connecting flange 4 is fixedly installed with a protective cover 8, the two protective covers 8 are arranged relatively and used in conjunction with each other, and one of the vent pipes 9 is penetrated with a connecting flange 4. A ventilation pipe 9 is installed through it, and the same installation shell 10 is installed between the two ventilation pipes 9, the installation shell 10 is fixed to the side of the valve body 1, a sliding plate 11 is slidably installed in the installation shell 10, a resistance plate 12 is fixedly installed on the lower surface of the sliding plate 11, a buzzer 13 used in conjunction with the resistance plate 12 is fixedly installed on the inner wall of the installation shell 10, a sliding rod 14 is fixedly installed on the upper surface of the sliding plate 11, the sliding rod 14 slides through and extends to the inside of the ventilation pipe 9 and is fixedly installed with a piston plate 15, the piston plate 15 is sealingly slidably installed on the inner wall of the ventilation pipe 9, and a filter cartridge 16 is movably arranged inside the port pipe 2 located at the inlet end of the valve body 1.

[0027] A number of alignment plates 17 are fixedly installed on the side of the connecting metal gasket 5, and a number of alignment slots are opened on the side of the connecting flange 4. The alignment plates and the alignment slots are used in conjunction with each other. The alignment plates 17 are used in conjunction with the alignment slots to limit the connecting metal gasket 5, effectively avoiding the problem of wear and dislocation of the connecting metal gasket 5 leading to sealing failure.

[0028] A sealing ring 18 is attached to the side of one of the protective covers 8 , and the side of the sealing ring 18 fits with the side of the other protective cover 8 . The setting of the sealing ring 18 can ensure a good sealing effect between the two protective covers 8 .

[0029] A plurality of guide rods 19 are fixedly mounted on the inner wall of the mounting shell 10, and the sliding plate 11 is slidably mounted on the outer surface of the guide rods 19. A spring 20 is sleeved on the outer surface of the guide rods 19, and both ends of the spring 20 are respectively fixedly connected to the inner wall of the mounting shell 10 and the surface of the sliding plate 11. The guide rods 19 can support the up and down movement of the sliding plate 11, thereby ensuring the normal cooperation between the resistance plate 12 and the buzzer 13. When the sliding plate 11 moves downward, the spring 20 is in a deformed state, so the reverse force of the spring 20 can be used to drive the sliding plate 11 to quickly reset, thereby improving the convenience of operation.

[0030] A plurality of limit plates 21 are fixedly installed on the outer surface of the filter cartridge 16, and a plurality of limit slots for the limit plates 21 to be inserted are opened on the inner wall of the port tube 2. The limit plates 21 are used together with the limit slots to support and limit the filter cartridge 16 to prevent the filter cartridge 16 from shaking and shifting.

[0031] A mounting frame 22 is fixedly installed on the inner wall of the filter cartridge 16, a motor 23 is fixedly installed on the side of the mounting frame 22, an assembly sleeve 25 is sleeved on the outer surface of the output shaft of the motor 23, a cleaning brush 24 is fixedly installed on the side of the assembly sleeve 25, the bristles of the cleaning brush 24 fit against the inner wall of the filter cartridge 16, an assembly bolt 26 is threadedly installed between the assembly sleeve 25 and the output shaft of the motor 23, the cleaning brush 24 is driven to rotate by the motor 23, the filter cartridge 16 can be cleaned to prevent mesh clogging from affecting the circulation of the medium, and the assembly sleeve 25 cooperates with the assembly bolt 26 to facilitate the subsequent disassembly and assembly of the cleaning brush 24.

[0032] When in use, the connecting metal gasket 5 is used in conjunction with the alignment plug plate 17 to support and limit the connecting metal gasket 5 to avoid the phenomenon of dislocation, displacement and shaking, and ensure good sealing. The protective cover 8 is used in conjunction with the vent pipe 9, the sliding rod 14, the piston plate 15, the sliding plate 11, the contact plate 12 and the buzzer 13. When a gas leak occurs, the gas will be transported through the vent pipe 9 and drive the piston plate 15 to move. The piston plate 15 drives the sliding plate 11 to drive the contact plate 12 to move through the sliding rod 14, and then drives the contact plate 12 to touch the buzzer 13. The buzzer 13 is used for alarm, which effectively avoids large-scale leakage. When the medium is flowing, the filter cartridge 16 can filter the particulate matter mixed in the circulating medium to prevent the particulate matter from entering the valve body 1 and causing damage to the components. The motor 23 is used to drive the cleaning brush 24 to rotate, so that the filter cartridge 16 can be cleaned to avoid mesh blockage affecting the medium circulation. The assembly sleeve 25 cooperates with the assembly bolt 26 to facilitate the subsequent disassembly and assembly of the cleaning brush 24.

Claims

1. An anti-leakage safety valve, characterized in that: The invention comprises a valve body (1), wherein the inlet end and the outlet end of the valve body (1) are both connected and installed with a port pipe (2), the end of the port pipe (2) is movably provided with a connecting pipe (3), the outer surface of the connecting pipe (3) and the outer surface of the port pipe (2) are both fixedly installed with a connecting flange (4), a connecting metal gasket (5) is provided between the connecting pipe (3) and the port pipe (2), a plurality of screws (6) are passed through between the connecting metal gasket (5) and the two connecting flanges (4), the outer surface of the screw (6) is threadedly installed with a nut (7), the outer surface of the connecting flange (4) is fixedly installed with a protective cover (8), the two protective covers (8) are arranged opposite to each other and used in conjunction with each other, one of the ventilation pipes (9) is penetrated and installed with a ventilation pipe (9), and the two ventilation pipes (9) are connected to each other. The ventilation pipes (9) are connected to each other and are installed with a same installation shell (10). The installation shell (10) is fixed on the side of the valve body (1). A sliding plate (11) is slidably installed in the installation shell (10). A resistance plate (12) is fixedly installed on the lower surface of the sliding plate (11). A buzzer (13) used in conjunction with the resistance plate (12) is fixedly installed on the inner wall of the installation shell (10). A sliding rod (14) is fixedly installed on the upper surface of the sliding plate (11). The sliding rod (14) slides through and extends into the interior of the ventilation pipe (9) and is fixedly installed with a piston plate (15). The piston plate (15) is sealingly slidably installed on the inner wall of the ventilation pipe (9). A filter cartridge (16) is movably arranged inside the port pipe (2) located at the inlet end of the valve body (1).

2. The anti-leakage safety valve according to claim 1, characterized in that: A plurality of alignment plug plates (17) are fixedly mounted on the side of the connecting metal gasket (5), and a plurality of alignment slots are opened on the side of the connecting flange (4). The alignment plug plates (17) and the alignment slots are used in coordination.

3. The anti-leakage safety valve according to claim 1, characterized in that: A sealing ring (18) is attached to the side of one of the protective covers (8), and the side of the sealing ring (18) is in contact with the side of the other protective cover (8).

4. The air leakage prevention safety valve according to claim 1, characterized in that: A plurality of guide rods (19) are fixedly mounted on the inner wall of the mounting shell (10), the sliding plate (11) is slidably mounted on the outer surface of the guide rods (19), a spring (20) is sleeved on the outer surface of the guide rods (19), and two ends of the spring (20) are respectively fixedly connected to the inner wall of the mounting shell (10) and the surface of the sliding plate (11).

5. The anti-leakage safety valve according to claim 1, characterized in that: A plurality of limit plug plates (21) are fixedly mounted on the outer surface of the filter cartridge (16), and a plurality of limit slots for inserting the limit plug plates (21) are provided on the inner wall of the port tube (2).

6. The anti-leakage safety valve according to claim 1, characterized in that: A mounting frame (22) is fixedly mounted on the inner wall of the filter cartridge (16), a motor (23) is fixedly mounted on the side of the mounting frame (22), an assembly sleeve (25) is sleeved on the outer surface of the output shaft of the motor (23), a cleaning brush (24) is fixedly mounted on the side of the assembly sleeve (25), the bristles of the cleaning brush (24) are in contact with the inner wall of the filter cartridge (16), and an assembly bolt (26) is threadedly mounted between the assembly sleeve (25) and the output shaft of the motor (23).

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