A gas meter box with automatic fire extinguishing function

Abstract

The invention belongs to the field of gas meter protection, and is an automatic fire extinguishing gas meter box. The automatic fire extinguishing gas meter box includes a shell, an exhaust port is fixedly provided on the upper side of the shell, a gas inlet is fixedly provided on the upper side of the shell, a gas outlet is fixedly provided on the lower side of the shell, a meter box cavity is provided in the shell, two rotating seats are fixedly provided on the front right side of the meter box cavity, and a box door is rotatably provided on the front side of the meter box cavity. When the gas meter catches fire due to gas leakage or other unexpected circumstances, the present invention automatically detects and uses dry powder to extinguish the fire on the gas meter. Dry powder is the most effective gas-related fire extinguishing method, has a good fire extinguishing effect, and will not damage the key components of the gas meter. At the same time, the device can cool the gas pipeline to avoid re-ignition due to excessive temperature. At the same time, the residual gas in the box can be extracted to avoid harm to the human body.

Description

Technical Field

[0001] The invention belongs to the field of gas meter protection, and in particular relates to an automatic fire extinguishing gas meter box. Background Art

[0002] As we all know, the fuel people use for cooking has changed from conventional energy sources such as firewood and coal, which are wasteful and polluting, to natural gas and coal gas, and even clean energy such as electricity. Here, the gas meter will play its role. Its automatic accumulation function allows those who use natural gas or pipeline gas to easily know how much gas they have used, so that they can pay according to the cubic meters of gas consumed each month, which has brought great convenience to people's lives. However, there are several problems with the existing gas meter box:

[0003] 1. When the gas meter box catches fire, it is difficult for people to find and extinguish the fire immediately;

[0004] 2. Failure to shut down the gas pipeline immediately can easily lead to a larger fire or even an explosion due to gas leakage;

[0005] 3. The pipeline cannot be cooled down, which may easily lead to the re-ignition of gas. Meanwhile, the residual gas in the box cannot be discharged, which may cause harm to people. Summary of the invention

[0006] The purpose of the present invention is to address the above-mentioned problems in the existing technology and to propose an automatic fire extinguishing gas meter box. When a fire occurs in the gas meter box, the automatic fire extinguishing gas meter box can automatically extinguish the fire and close the gas pipeline in a short time, while cooling the pipeline and discharging the residual gas.

[0007] The objectives of the present invention can be achieved through the following technical solutions: a gas meter box with automatic fire extinguishing, comprising a shell, an exhaust port is fixedly provided on the upper side of the shell, a gas inlet is fixedly provided on the upper side of the shell, a gas outlet is fixedly provided on the lower side of the shell, a meter box inner cavity is provided in the shell, two rotating seats are fixedly provided on the front right side of the meter box inner cavity, a box door is rotatably provided on the front side of the meter box inner cavity, two rotating grooves are provided on the right side of the box door, a rotating shaft is fixedly provided on the upper side of each rotating groove, each rotating shaft is rotatably connected to each rotating seat, and a handle is fixedly provided on the front side of the box door.

[0008] Preferably, a motor seat is fixedly provided on the left side of the inner cavity of the meter box, a motor is fixedly provided on the upper side of the motor seat, a motor shaft is provided at the upper output end of the motor, a gear is fixedly provided on the upper side of the motor shaft, a slide groove is fixedly provided on the left side of the inner cavity of the meter box, a rack is slidingly provided in the inner cavity of the meter box, a slider is fixedly provided on the upper side of the rack, the slider is slidably connected to the slide groove, and the slider is meshed with the gear.

[0009] Preferably, a first gas pipeline is fixedly provided on the upper side of the inner cavity of the meter box, the first gas pipeline is communicated with the gas inlet, a gas meter is fixedly provided on the lower side of the first gas pipeline, a second gas pipeline is fixedly provided on the lower side of the gas meter, the second gas pipeline is fixedly connected to the gas outlet, the second gas pipeline is communicated with the gas outlet, and a gas valve is fixedly provided in the first gas pipeline.

[0010] Preferably, a valve stem shaft seat is fixedly provided on the front side of the gas valve, a valve stem shaft is rotatably provided on the front side of the valve stem shaft seat, a valve stem is fixedly provided on the front side of the valve stem shaft, a first swivel is rotatably provided on the lower side of the valve stem, a telescopic rod is fixedly provided on the right side of the first swivel, a connecting rod is fixedly provided on the right side of the rack, a second swivel is rotatably provided on the right side of the connecting rod, and the second swivel is fixedly connected to the telescopic rod.

[0011] Preferably, a dry powder box is fixedly provided on the right side of the inner cavity of the meter box, and dry powder spray outlets are respectively fixedly provided on the upper and lower sides of the dry powder box, a safety valve is fixedly provided on each of the dry powder spray outlets, a pull ring is slidingly provided on the left side of each safety valve, a pull rope is fixedly provided on the outside of the pull ring, a pull rod is fixedly provided on the right side of the valve stem, and the pull rod is fixedly connected to the pull rope.

[0012] Preferably, a water tank is fixedly provided on the lower side of the inner cavity of the meter box, a plurality of water inlet troughs are provided on the upper side of the water tank, a smoke detector is fixedly provided on the left end of the upper side of the inner cavity of the meter box, a temperature detector is fixedly provided on the right end of the upper side of the inner cavity of the meter box, an air pump is fixedly provided on the left end of the rear side of the inner cavity of the meter box, an exhaust pipe is fixedly provided on the front side of the air pump, an exhaust pipe is fixedly provided on the upper side, the exhaust pipe is fixedly connected to the exhaust port, the exhaust pipe is communicated with the exhaust port, a water pump is fixedly provided on the middle side of the rear side of the inner cavity of the meter box, a water spray pipe is fixedly provided on the front side of the water pump, a water suction pipe is fixedly provided on the lower side of the water pump, and the water suction pipe extends into the water tank.

[0013] When the shell body catches fire accidentally, the temperature detector in the inner cavity of the meter box will detect that the temperature in the inner cavity of the meter box rises abnormally, and the smoke detector will detect the appearance of smoke. At this time, the motor will start, so that the motor drives the motor shaft to rotate counterclockwise, thereby driving the rack to slide to the right, thereby causing the connecting rod to slide to the right, thereby driving the telescopic rod to slide to the right, thereby driving the valve stem to rotate upward. When the valve stem rotates to a certain angle, since the connecting rod can only move in the horizontal direction and cannot move upward, the telescopic rod will extend at this time, so that the first swivel ring and the second swivel ring can rotate, so that the telescopic rod continues to push the valve stem to rotate upward. When the valve stem rotates to a horizontal position, the gas valve will be closed at this time, so that the gas in the first gas pipeline cannot escape. In this way, the gas pipeline can be closed immediately to avoid gas escape, thereby avoiding more serious accidents.

[0014] When the valve stem rotates upward, the valve stem will drive the pull rod to move upward, so that the pull rod will pull the pull rope to the left, so that the pull ring is pulled out, so that the safety valve opens, and the dry powder is sprayed out from the dry powder spray port. This can quickly extinguish the fire and avoid the intensification of the fire. The dry powder fire extinguishing efficiency is high and the automatic occurrence speed is fast. It can self-extinguish the fire within a short time after the fire occurs.

[0015] When the fire is out, the water pump will start, and the water in the water tank will be pumped out through the suction pipe and sprayed out through the spray pipe. The sprayed water will fall on the water tank and then flow back into the water tank through the water inlet trough. At the same time, the pull ring will start, so that the residual gas in the inner cavity of the meter box will be pumped into the air pump through the suction pipe and discharged to the outside through the exhaust port. This can cool the gas pipeline and avoid the re-ignition of gas due to excessive temperature. At the same time, it can realize the reuse of water and save water resources. In addition, the residual gas in the box can be pumped out by the air pump to avoid harm to the human body caused by the gas.

[0016] Compared with the prior art, the automatic fire extinguishing gas meter box has the following advantages:

[0017] 1. The gas pipeline can be closed immediately to prevent gas from escaping and thus avoid more serious accidents.

[0018] 2. It can quickly extinguish fire and avoid the aggravation of fire. Dry powder fire extinguishing is highly efficient and occurs automatically quickly. It can extinguish fire within a short time after the fire occurs.

[0019] 3. It can cool down the gas pipeline to avoid the re-ignition of gas due to excessive temperature. At the same time, it can realize the reuse of water and save water resources. In addition, the residual gas in the box can be extracted by the air pump to avoid harm to the human body caused by gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a gas meter box with automatic fire extinguishing.

[0021] Figure 2 It is a schematic diagram of the internal structure of a gas meter box with automatic fire extinguishing.

[0022] Figure 3 It is the front view of the gas meter box with automatic fire extinguishing.

[0023] Figure 4 yes Figure 3 Section view along AA direction.

[0024] Figure 5 yes Figure 3 Cross-sectional view along BB direction.

[0025] Figure 6 yes Figure 2 Enlarged view of the structure at point C in the middle.

[0026] Figure 7 yes Figure 2 Enlarged view of the structure at point D in the middle.

[0027] In the figure, 10, housing; 11, exhaust port; 12, gas inlet; 13, gas outlet; 14, box door; 15, handle; 16, rotating seat; 17, rotating shaft; 18, rotating slot; 19, air outlet pipe; 20, air pump; 21, exhaust pipe; 22, inner cavity of meter box; 23, temperature detector; 24, smoke detector; 25, first gas pipeline; 26, motor seat; 27, motor; 28, motor shaft; 29, gear; 30, rack; 31, slider; 32. Slide; 33. Second gas pipeline; 34. Water storage tank; 35. Water inlet trough; 36. Dry powder spray outlet; 37. Dry powder box; 38. Pull rod; 39. Pull rope; 40. Telescopic rod; 41. Gas meter; 42. Gas valve; 43. Valve stem shaft seat; 44. Valve stem shaft; 45. Valve stem; 46. First swivel; 47. Second swivel; 48. Connecting rod; 49. Safety valve; 50. Pull ring; 51. Water pump; 52. Water spray pipe; 53. Water extraction pipe. DETAILED DESCRIPTION

[0028] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0029] like Figure 1 and Figure 2 As shown, a gas meter box with automatic fire extinguishing comprises a shell 10, an exhaust port 11 is fixedly provided on the upper side of the shell 10, a gas inlet 12 is fixedly provided on the upper side of the shell 10, a gas outlet 13 is fixedly provided on the lower side of the shell 10, a meter box inner cavity 22 is provided in the shell 10, two rotating seats 16 are fixedly provided on the front right side of the meter box inner cavity 22, a box door 14 is rotatably provided on the front side of the meter box inner cavity 22, two rotating grooves 18 are provided on the right side of the box door 14, a rotating shaft 17 is fixedly provided on the upper side of each rotating groove 18, each rotating shaft 17 is rotatably connected to each rotating seat 16, and a handle 15 is fixedly provided on the front side of the box door 14.

[0030] like Figure 3 and Figure 5 As shown, a motor base 26 is fixedly provided on the left side of the meter box inner cavity 22, a motor 27 is fixedly provided on the upper side of the motor base 26, a motor shaft 28 is provided on the upper output end of the motor 27, a gear 29 is fixedly provided on the upper side of the motor shaft 28, a slide groove 32 is fixedly provided on the left side of the meter box inner cavity 22, a rack 30 is slidingly provided in the meter box inner cavity 22, a slider 31 is fixedly provided on the upper side of the rack 30, the slider 31 is slidably connected to the slide groove 32, and the slider 31 is meshed with the gear 29.

[0031] like Figure 2 and Figure 4 As shown, a first gas pipeline 25 is fixedly provided on the upper side of the inner cavity 22 of the meter box, and the first gas pipeline 25 is communicated with the gas inlet 12. A gas meter 41 is fixedly provided on the lower side of the first gas pipeline 25, and a second gas pipeline 33 is fixedly provided on the lower side of the gas meter 41. The second gas pipeline 33 is fixedly connected to the gas outlet 13, and the second gas pipeline 33 is communicated with the gas outlet 13. A gas valve 42 is fixedly provided in the first gas pipeline 25.

[0032] like Figure 4 and Figure 6 As shown, a valve stem shaft seat 43 is fixedly provided on the front side of the gas valve 42, a valve stem shaft 44 is rotatably provided on the front side of the valve stem shaft seat 43, a valve stem 45 is fixedly provided on the front side of the valve stem shaft 44, a first swivel 46 is rotatably provided on the lower side of the valve stem 45, a telescopic rod 40 is fixedly provided on the right side of the first swivel 46, a connecting rod 48 is fixedly provided on the right side of the rack 30, a second swivel 47 is rotatably provided on the right side of the connecting rod 48, and the second swivel 47 is fixedly connected to the telescopic rod 40.

[0033] like Figure 2 , Figure 3 and Figure 7 As shown, a dry powder box 37 is fixedly provided on the right side of the inner cavity 22 of the meter box, and dry powder spray outlets 36 are respectively fixedly provided on the upper and lower sides of the dry powder box 37. A safety valve 49 is fixedly provided on each dry powder spray outlet 36. A pull ring 50 is slidingly provided on the left side of each safety valve 49, and a pull rope 39 is fixedly provided on the outer side of the pull ring 50. A pull rod 38 is fixedly provided on the right side of the valve stem 45, and the pull rod 38 is fixedly connected to the pull rope 39.

[0034] like Figure 2 and Figure 4 As shown, a water tank 34 is fixedly provided on the lower side of the inner cavity 22 of the meter box, a plurality of water inlet troughs 35 are provided on the upper side of the water tank 34, a smoke detector 24 is fixedly provided on the upper left end of the inner cavity 22 of the meter box, a temperature detector 23 is fixedly provided on the upper right end of the inner cavity 22 of the meter box, an air pump 20 is fixedly provided on the left end of the rear side of the inner cavity 22 of the meter box, an exhaust pipe 21 is fixedly provided on the front side of the air pump 20, an exhaust pipe 19 is fixedly provided on the upper side, the exhaust pipe 19 is fixedly connected to the exhaust port 11, and the exhaust pipe 19 is communicated with the exhaust port 11, a water pump 51 is fixedly provided on the middle side of the rear side of the inner cavity 22 of the meter box, a water spray pipe 52 is fixedly provided on the front side of the water pump 51, a water pump 53 is fixedly provided on the lower side of the water pump 51, and the water pump 53 extends into the water tank 34.

[0035] When the shell 10 is accidentally ignited, the temperature detector 23 in the inner cavity 22 of the meter box will detect that the temperature in the inner cavity 22 of the meter box is abnormally increased, and the smoke detector 24 will detect the appearance of smoke. At this time, the motor 27 will be started, so that the motor 27 drives the motor shaft 28 to rotate counterclockwise, thereby driving the rack 30 to slide to the right, so that the connecting rod 48 slides to the right, thereby driving the telescopic rod 40 to slide to the right, thereby driving the valve rod 45 to rotate upward. When the valve rod 45 rotates to a certain angle, since the connecting rod 48 can only move in the horizontal direction and cannot move upward, the telescopic rod 40 will extend at this time, so that the first rotating ring 46 and the second rotating ring 47 can rotate, so that the telescopic rod 40 continues to push the valve rod 45 to rotate upward. When the valve rod 45 rotates to a horizontal position, the gas valve 42 will be closed at this time, so that the gas in the first gas pipeline 25 cannot escape. In this way, the gas pipeline can be closed immediately to avoid gas escaping, thereby avoiding more serious accidents.

[0036] When the valve stem 45 rotates upward, the valve stem 45 will drive the pull rod 38 to move upward, so that the pull rod 38 pulls the pull rope 39 to the left, so that the pull ring 50 is pulled out, so that the safety valve 49 is opened, and the dry powder is sprayed out from the dry powder spray port 36. In this way, the fire can be extinguished quickly and the fire can be prevented from getting worse. The dry powder fire extinguishing efficiency is high and the automatic occurrence speed is fast. It can extinguish the fire within a short time after the fire occurs.

[0037] When the fire is extinguished, the water pump 51 will start, so that the water in the water tank 34 will be pumped out through the pumping pipe 53 and sprayed out through the water spraying pipe 52. The sprayed water will fall on the water tank 34 and then flow back into the water tank 34 through the water inlet trough 35. At the same time, the pull ring 50 will start, so that the residual gas in the inner cavity 22 of the meter box will be pumped into the air pump 20 through the exhaust pipe 21 and discharged to the outside through the exhaust port 11. In this way, the gas pipeline can be cooled to avoid the re-ignition of gas due to excessive temperature. At the same time, water can be reused to save water resources. In addition, the residual gas in the box can be pumped out by the air pump to avoid harm to the human body caused by the gas.

[0038] The above descriptions are merely embodiments of the present invention, and are not intended to limit the patent protection scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention's specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A gas meter box with automatic fire extinguishing function, comprising a housing (10), characterized in that: An exhaust port (11) is fixedly provided on the upper side of the shell (10), a gas inlet (12) is fixedly provided on the upper side of the shell (10), a gas outlet (13) is fixedly provided on the lower side of the shell (10), a meter box cavity (22) is provided in the shell (10), two rotating seats (16) are fixedly provided on the front right side of the meter box cavity (22), a box door (14) is rotatably provided on the front side of the meter box cavity (22), two rotating grooves (18) are provided on the right side of the box door (14), a rotating shaft (17) is fixedly provided on the upper side of each rotating groove (18), each rotating shaft (17) is rotatably connected to each rotating seat (16), and a handle (15) is fixedly provided on the front side of the box door (14); A motor seat (26) is fixedly provided on the left side of the meter box inner cavity (22), a motor (27) is fixedly provided on the upper side of the motor seat (26), a motor shaft (28) is provided on the upper output end of the motor (27), a gear (29) is fixedly provided on the upper side of the motor shaft (28), a slide groove (32) is fixedly provided on the left side of the meter box inner cavity (22), a rack (30) is slidably provided in the meter box inner cavity (22), a slider (31) is fixedly provided on the upper side of the rack (30), the slider (31) is slidably connected to the slide groove (32), and the slider (31) is meshed with the gear (29); A first gas pipeline (25) is fixedly provided on the upper side of the inner cavity (22) of the meter box, the first gas pipeline (25) is communicated with the gas inlet (12), a gas meter (41) is fixedly provided on the lower side of the first gas pipeline (25), a second gas pipeline (33) is fixedly provided on the lower side of the gas meter (41), the second gas pipeline (33) is fixedly connected to the gas outlet (13), the second gas pipeline (33) is communicated with the gas outlet (13), and a gas valve (42) is fixedly provided in the first gas pipeline (25); A valve stem shaft seat (43) is fixedly provided on the front side of the gas valve (42), a valve stem shaft (44) is rotatably provided on the front side of the valve stem shaft seat (43), a valve stem (45) is fixedly provided on the front side of the valve stem shaft (44), a first rotating ring (46) is rotatably provided on the lower side of the valve stem (45), a telescopic rod (40) is fixedly provided on the right side of the first rotating ring (46), a connecting rod (48) is fixedly provided on the right side of the rack (30), a second rotating ring (47) is rotatably provided on the right side of the connecting rod (48), and the second rotating ring (47) is fixedly connected to the telescopic rod (40); A dry powder box (37) is fixedly provided on the right side of the inner cavity (22) of the meter box, and dry powder spraying outlets (36) are fixedly provided on the upper and lower sides of the dry powder box (37), and a safety valve (49) is fixedly provided on each of the dry powder spraying outlets (36). A pull ring (50) is slidably provided on the left side of each of the safety valves (49), and a pull rope (39) is fixedly provided on the outside of the pull ring (50). A pull rod (38) is fixedly provided on the right side of the valve stem (45), and the pull rod (38) is fixedly connected to the pull rope (39); When the valve stem (45) rotates upward, the valve stem (45) will drive the pull rod (38) to move upward, so that the pull rod (38) pulls the pull rope (39) to the left, so that the pull ring (50) is pulled out, so that the safety valve (49) opens, and the dry powder is sprayed out from the dry powder spraying port (36).

2. The automatic fire extinguishing gas meter box according to claim 1, characterized in that: A water storage tank (34) is fixedly provided at the lower side of the inner cavity (22) of the meter box, a plurality of water inlet grooves (35) are provided at the upper side of the water storage tank (34), a smoke detector (24) is fixedly provided at the upper left end of the inner cavity (22) of the meter box, a temperature detector (23) is fixedly provided at the upper right end of the inner cavity (22) of the meter box, an air pump (20) is fixedly provided at the rear left end of the inner cavity (22) of the meter box, an air extraction pipe (21) is fixedly provided at the front side of the air pump (20), and (2) An air outlet pipe (19) is fixedly provided on the upper side, the air outlet pipe (19) is fixedly connected to the air outlet (11), the air outlet pipe (19) is communicated with the air outlet (11), a water pump (51) is fixedly provided in the middle of the rear side of the inner cavity (22) of the meter box, a water spray pipe (52) is fixedly provided on the front side of the water pump (51), a water pump (53) is fixedly provided on the lower side of the water pump (51), and the water pump (53) extends into the water storage tank (34).

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