Safety gas monitoring alarm device

Abstract

The utility model belongs to the technical field of gas leakage monitoring, and particularly relates to a safety gas monitoring alarm device which comprises a left gas pipeline sealing shell and a right gas pipeline sealing shell, the two gas pipelines are communicated through a flange, and the left gas pipeline sealing shell and the right gas pipeline sealing shell are fixedly arranged on the outer side of the joint of the two gas pipelines in a sleeving mode. One side of the left sealing shell fixedly communicates with a sealing cylinder, a gas leakage monitoring and alarming mechanism is arranged on the sealing cylinder, one side of the right sealing shell is detachably and fixedly connected with a gas alarm, and a dismounting and replacing mechanism is arranged between the gas alarm and the right sealing shell. The gas leakage monitoring and alarming device is reasonable in structural design, when the gas alarm is damaged, the leakage condition of a gas pipeline can be monitored and alarmed through the gas leakage monitoring and alarming mechanism, the use safety is greatly improved, the damaged gas alarm can be disassembled, assembled, overhauled, maintained and replaced, the use effect of the device is improved, and the reliability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of gas leakage monitoring, in particular to a safety gas monitoring alarm device. Background Art

[0002] Gas is a general term for gaseous fuels, which can burn and release heat for use by residents and industrial enterprises. There are many types of gas, mainly natural gas, artificial gas, liquefied petroleum gas, biogas, and coal-to-gas. In the process of using gas, it is often equipped with a gas alarm, which is a gas leak detection alarm instrument. When gas leaks in an industrial environment, the gas alarm detects that the gas concentration reaches the critical point set by the explosion or poisoning alarm, the gas alarm will send an alarm signal to remind the staff to take safety measures. The gas alarm is equivalent to an automatic fire extinguisher. It can be installed to drive the exhaust, cut-off, and sprinkler systems to prevent explosions, fires, and poisoning accidents, thereby ensuring safe production. The gas alarm can measure various gas concentrations. It is often used in chemical plants, petroleum, gas stations, steel mills and other places where there are gas leaks.

[0003] After searching: A safety gas monitoring alarm device with authorization announcement numbers CN220752847U and CN219267088U still has some shortcomings during use. Once the gas alarm is damaged, it will not be able to sense gas leakage, which poses certain risks. In addition, it is inconvenient to disassemble, inspect, maintain and replace the gas alarm after damage, which reduces the effect of use. Therefore, we propose a safety gas monitoring alarm device to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve the above-mentioned shortcomings and to propose a safe gas monitoring and alarm device.

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

[0006] A safety gas monitoring and alarm device comprises a left sealing shell and a right sealing shell of two gas pipelines, the two gas pipelines are connected by a flange, the left sealing shell and the right sealing shell are fixedly sleeved on the outside of the connection between the two gas pipelines, one side of the left sealing shell is fixedly connected with a sealing cylinder, the sealing cylinder is provided with a gas leakage monitoring and alarm mechanism, one side of the right sealing shell is detachably fixedly connected with a gas alarm, and a disassembly and replacement mechanism is provided between the gas alarm and the right sealing shell.

[0007] Specifically, the gas leakage monitoring alarm mechanism includes a control switch fixedly connected to the inner wall of one side of the sealing cylinder and two return springs fixedly connected to the inner wall of one side of the sealing cylinder, one end of the two return springs is fixedly connected to the same sealing plate, the sealing plate sliding sealing sleeve is arranged in the sealing cylinder, one side of the sealing plate is fixedly connected to a pressing block, and the pressing block cooperates with the control switch.

[0008] Specifically, a telescopic rod is fixedly connected to the inner wall of one side of the sealing cylinder, two return springs are respectively sleeved on the outer sides of the corresponding telescopic rods, and one end of the two telescopic rods is fixedly connected to one side of the sealing plate.

[0009] Specifically, the gas leakage monitoring alarm mechanism also includes a buzzer fixedly connected to one side of the sealing tube, and the buzzer is electrically connected to the control switch.

[0010] Specifically, a support rod is fixedly connected to an inner wall of one side of the sealing cylinder, and the control switch is fixedly connected to one end of the support rod.

[0011] Specifically, the front and rear sides of the left sealing shell and the right sealing shell are fixedly connected with connecting plates, two bolts are threadedly connected between the two connecting plates on the same side, and two rubber sealing rings are fixedly connected to the sides of the left sealing shell and the right sealing shell close to each other, and the two gas pipelines are slidably mounted in the corresponding two rubber sealing rings.

[0012] Specifically, a mounting opening is provided on one side of the right sealing shell, and sliding grooves are provided on the top inner wall and the bottom inner wall of the mounting opening. The disassembly and replacement mechanism includes a mounting block fixedly sleeved on the outside of the gas alarm and an extrusion spring fixedly connected to the inner wall of the sliding groove, and the ends of the two extrusion springs close to each other are fixedly connected with sliders, and the sides of the two sliders close to each other are fixedly connected with clamping rods, the mounting block is slidably sleeved in the mounting opening, and clamping grooves are provided on the top and bottom of the mounting block, and the two clamping rods are respectively movably clamped in the corresponding clamping grooves, and one side of the two sliders is fixedly connected with a pull plate.

[0013] Specifically, two long holes are provided on one side of the right sealing shell, two pull plates are slidably sleeved in the corresponding long holes, and two slide blocks are slidably sleeved in the corresponding slide grooves.

[0014] In the utility model, a safety gas monitoring and alarm device is described, which can monitor the gas in the left sealed shell and the right sealed shell through the gas alarm. Once the gas between the left sealed shell and the right sealed shell is detected, it means that there is a leak at the connection between the two gas pipelines. Through the gas alarm, an alarm can be given in time to remind the staff to close the valve there. If the gas alarm is damaged, the gas in the gas pipeline will continue to leak out, so that the air pressure between the left sealed shell and the right sealed shell will gradually increase. Under the increasing air pressure, the sealing plate and the pressing block will be gradually squeezed to move to the left. When the pressing block squeezes the control switch, the control switch will control the buzzer to work and emit a buzzer alarm to remind the staff that the connection there is leaking, so that the staff can close the valve there as soon as possible and maintain the connection.

[0015] In the utility model, the safety gas monitoring alarm device described in the utility model can pull outward two pull plates when maintaining the gas alarm, and the two pull plates drive the two sliders and the clamping rod to move outward and disengage from the clamping slot without fixing the mounting block. At this time, the mounting block and the gas alarm can be disassembled for inspection, maintenance and replacement, and the new mounting block and the gas alarm are inserted into the mounting opening, and the pull plates are released. At this time, under the elastic force of the extrusion spring, the two clamping rods are close to each other and clamped in the corresponding clamping slot, so that the mounting block can be fixed;

[0016] The utility model has a reasonable structural design. Through the gas leakage monitoring and alarm mechanism, when the gas alarm is damaged, it can also monitor and alarm the leakage of the gas pipeline, which greatly improves the safety of use and is conducive to the disassembly, inspection, maintenance and replacement of the damaged gas alarm, thereby improving the use effect of the device and having high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a safety gas monitoring and alarm device proposed by the utility model;

[0018] Figure 2 This is a cross-sectional view of a safety gas monitoring and alarm device proposed by the utility model;

[0019] Figure 3 for Figure 2 The structural diagram of part A in the figure;

[0020] Figure 4 This is a three-dimensional diagram of a gas leakage monitoring and alarm mechanism of a safety gas monitoring and alarm device proposed by the utility model.

[0021] In the figure: 1. gas pipeline; 2. left sealing shell; 3. right sealing shell; 4. connecting plate; 5. bolt; 6. gas alarm; 7. pull plate; 8. rubber sealing ring; 9. sealing cylinder; 10. buzzer; 11. support rod; 12. control switch; 13. telescopic rod; 14. reset spring; 15. sealing plate; 16. pressing block; 17. long hole; 18. extrusion spring; 19. installation port; 20. slide groove; 21. slider; 22. clamping rod; 23. installation block; 24. clamping groove. 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] Reference Figure 1-4 A safety gas monitoring and alarm device comprises two gas pipelines 1, a left sealing shell 2 and a right sealing shell 3. The two gas pipelines 1 are connected by flanges. The left sealing shell 2 and the right sealing shell 3 are fixedly sleeved on the outside of the connection between the two gas pipelines 1. A sealing cylinder 9 is fixedly connected to one side of the left sealing shell 2, and a gas leakage monitoring and alarm mechanism is arranged on the sealing cylinder 9. A gas alarm 6 is detachably fixedly connected to one side of the right sealing shell 3, and a disassembly and replacement mechanism is arranged between the gas alarm 6 and the right sealing shell 3.

[0024] Furthermore, the gas leakage monitoring and alarm mechanism includes a control switch 12 fixedly connected to the inner wall of one side of the sealing tube 9 and two return springs 14 fixedly connected to the inner wall of one side of the sealing tube 9, one end of the two return springs 14 is fixedly connected to the same sealing plate 15, the sealing plate 15 is slidingly sealed and sleeved in the sealing tube 9, one side of the sealing plate 15 is fixedly connected to a pressing block 16, and the pressing block 16 cooperates with the control switch 12. The gas leakage monitoring and alarm mechanism also includes a buzzer 10 fixedly connected to one side of the sealing tube 9, the buzzer 10 is electrically connected to the control switch 12, and the gas in the left sealing shell 2 and the right sealing shell 3 can be monitored through the gas alarm 6. Once the left sealing shell 2 and the right sealing shell 3 are detected, the gas alarm 6 will be turned on. When there is gas between the right sealed shell 3, it means that there is a leak at the connection between the two gas pipes 1. The gas alarm 6 can be used to alarm in time to remind the staff to close the valve there. If the gas alarm 6 is damaged, the gas in the gas pipe 1 will continue to leak out, causing the air pressure between the left sealed shell 2 and the right sealed shell 3 to gradually increase. Under the increasing air pressure, the sealing plate 15 and the pressing block 16 will be gradually squeezed and pushed to the left. When the pressing block 16 squeezes the control switch 12, the control switch 12 will control the buzzer 10 to work and emit a buzzer alarm to remind personnel that the connection there is leaking, so that the personnel can close the valve there as soon as possible and maintain the connection.

[0025] Furthermore, a telescopic rod 13 is fixedly connected to the inner wall of one side of the sealing cylinder 9, and two return springs 14 are respectively sleeved on the outer sides of the corresponding telescopic rods 13. One end of the two telescopic rods 13 is fixedly connected to one side of the sealing plate 15, which can guide the sealing plate 15 to make its movement more stable.

[0026] Furthermore, a support rod 11 is fixedly connected to an inner wall of one side of the sealing cylinder 9 , and a control switch 12 is fixedly connected to one end of the support rod 11 , so that the control switch 12 can be supported and fixed.

[0027] Furthermore, the front and rear sides of the left sealing shell 2 and the right sealing shell 3 are fixedly connected with connecting plates 4, and two bolts 5 are threadedly connected between the two connecting plates 4 on the same side. The sides of the left sealing shell 2 and the right sealing shell 3 close to each other are fixedly connected with two rubber sealing rings 8, and the two gas pipelines 1 are respectively slidably sleeved in the corresponding two rubber sealing rings 8. The left sealing shell 2 and the right sealing shell 3 are fixed by the arrangement of the bolts 5 and the connecting plates 4. Due to the arrangement of the rubber sealing rings 8, the connection between the gas pipeline 1, the left sealing shell 2 and the right sealing shell 3 can be sealed to avoid inaccurate monitoring caused by leakage.

[0028] Further, a mounting opening 19 is provided on one side of the right sealing shell 3, and a slide groove 20 is provided on the top inner wall and the bottom inner wall of the mounting opening 19. The disassembly and replacement mechanism includes a mounting block 23 fixedly sleeved on the outside of the gas alarm 6 and an extrusion spring 18 fixedly connected to the inner wall of the slide groove 20. The ends of the two extrusion springs 18 close to each other are fixedly connected to a slider 21, and the sides of the two sliders 21 close to each other are fixedly connected to a clamping rod 22. The mounting block 23 is slidably sleeved in the mounting opening 19, and a clamping groove 24 is provided on the top and bottom of the mounting block 23. The two clamping rods 22 are respectively movably clamped on the opposite ends. In the corresponding slot 24, one side of the two sliders 21 is fixedly connected with a pull plate 7. During maintenance, the two pull plates 7 can be pulled outward, and the two pull plates 7 drive the two sliders 21 and the clamping rod 22 to move outward and disengage from the slot 24 without fixing the mounting block 23. At this time, the mounting block 23 and the gas alarm 6 can be removed for inspection, maintenance and replacement, and the new mounting block 23 and the gas alarm 6 are inserted into the mounting port 19, and the pull plate 7 is released. At this time, under the elastic force of the extrusion spring 18, the two clamping rods 22 approach each other and are clamped in the corresponding slot 24, thereby fixing the mounting block 23.

[0029] Furthermore, two long holes 17 are opened on one side of the right sealing shell 3, and the two pull plates 7 are slidably mounted in the corresponding long holes 17, and the two sliders 21 are slidably mounted in the corresponding slide grooves 20, which can guide the pull plates 7 and the sliders 21 to make their movement more stable and smooth.

[0030] In the utility model, when in use, the gas alarm 6 can be used to monitor the gas in the left sealed shell 2 and the right sealed shell 3. Once the gas between the left sealed shell 2 and the right sealed shell 3 is detected, it means that a leak occurs at the connection between the two gas pipelines 1. The gas alarm 6 can be used to give an alarm in time to remind the staff to close the valve there. If the gas alarm 6 is damaged, the gas in the gas pipeline 1 will continue to leak out, causing the air pressure between the left sealed shell 2 and the right sealed shell 3 to gradually increase. Under the increasing air pressure, the sealing plate 15 and the pressing block 16 will be gradually squeezed and pushed to move to the left. When the pressing block 16 squeezes the control switch 12, the control switch 12 will control the buzzer 10 to work and emit a buzzer alarm to remind the staff that the connection there is leaking, so that the staff can close the valve there as soon as possible and maintain the connection.

Claims

1. A safety gas monitoring and alarm device, characterized in that: The invention comprises two gas pipelines (1), a left sealing shell (2) and a right sealing shell (3), the two gas pipelines (1) being connected via a flange, the left sealing shell (2) and the right sealing shell (3) being fixedly sleeved on the outside of the connection between the two gas pipelines (1), one side of the left sealing shell (2) being fixedly connected with a sealing cylinder (9), the sealing cylinder (9) being provided with a gas leakage monitoring and alarm mechanism, one side of the right sealing shell (3) being detachably fixedly connected with a gas alarm (6), and a disassembly and replacement mechanism being provided between the gas alarm (6) and the right sealing shell (3).

2. A safety gas monitoring and alarm device according to claim 1, characterized in that: The gas leakage monitoring alarm mechanism comprises a control switch (12) fixedly connected to the inner wall of one side of the sealing cylinder (9) and two return springs (14) fixedly connected to the inner wall of one side of the sealing cylinder (9), one end of the two return springs (14) is fixedly connected to the same sealing plate (15), the sealing plate (15) is slidably sealed and sleeved in the sealing cylinder (9), one side of the sealing plate (15) is fixedly connected to a pressing block (16), and the pressing block (16) cooperates with the control switch (12).

3. A safety gas monitoring alarm device according to claim 2, characterized in that: A telescopic rod (13) is fixedly connected to the inner wall of one side of the sealing cylinder (9), two return springs (14) are respectively sleeved on the outer sides of the corresponding telescopic rods (13), and one end of the two telescopic rods (13) is fixedly connected to one side of the sealing plate (15).

4. A safety gas monitoring alarm device according to claim 2, characterized in that: The gas leakage monitoring alarm mechanism also includes a buzzer (10) fixedly connected to one side of the sealing cylinder (9), and the buzzer (10) is electrically connected to the control switch (12).

5. A safety gas monitoring alarm device according to claim 2, characterized in that: A support rod (11) is fixedly connected to an inner wall of one side of the sealing cylinder (9), and the control switch (12) is fixedly connected to one end of the support rod (11).

6. A safety gas monitoring alarm device according to claim 1, characterized in that: The front and rear sides of the left sealing shell (2) and the right sealing shell (3) are fixedly connected with connecting plates (4), and two bolts (5) are threadedly connected between the two connecting plates (4) on the same side. The sides of the left sealing shell (2) and the right sealing shell (3) close to each other are fixedly connected with two rubber sealing rings (8), and the two gas pipelines (1) are respectively slidably sleeved in the corresponding two rubber sealing rings (8).

7. A safety gas monitoring alarm device according to claim 1, characterized in that: A mounting opening (19) is provided on one side of the right sealing shell (3), and a slide groove (20) is provided on the top inner wall and the bottom inner wall of the mounting opening (19). The disassembly and replacement mechanism comprises a mounting block (23) fixedly sleeved on the outside of the gas alarm (6) and an extrusion spring (18) fixedly connected to the inner wall of the slide groove (20), and the two extrusion springs (18) are fixedly connected to a slider (21) at one end close to each other, and the two sliders (21) are fixedly connected to a clamping rod (22) at one side close to each other. The mounting block (23) is slidably sleeved in the mounting opening (19), and the mounting block (23) is provided with a clamping groove (24) at the top and the bottom, and the two clamping rods (22) are respectively movably clamped in the corresponding clamping grooves (24), and one side of the two sliders (21) is fixedly connected to a pull plate (7).

8. A safety gas monitoring and alarm device according to claim 7, characterized in that: Two elongated holes (17) are provided on one side of the right sealing shell (3), two pull plates (7) are slidably sleeved in the corresponding elongated holes (17), and two slide blocks (21) are slidably sleeved in the corresponding slide grooves (20).

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