Gas station and fuel dispenser with automatic fire extinguishing function

Abstract

The present invention discloses a fuel dispenser and a gas station with an automatic fire extinguishing function, which comprises a computer case and a hydraulic case connected to each other, wherein the computer case comprises an MCU microprocessor, a temperature sensor, a smoke sensor, a power module, a drive module, an alarm speaker, and a heptafluoropropane gas fire extinguisher bottle group; the hydraulic case comprises an explosion-proof temperature sensor, an explosion-proof smoke sensor, an explosion-proof flame sensor, an explosion-proof oil and gas concentration sensor, a multi-purpose dry powder fire extinguisher bottle group, and a self-priming pump; wherein the temperature sensor, the smoke sensor, the explosion-proof temperature sensor, the explosion-proof smoke sensor, the explosion-proof flame sensor, the explosion-proof oil and gas concentration sensor, and the power module are connected to the MCU microprocessor; the MCU microprocessor is connected to the drive module, and the drive module is connected to the alarm speaker, the heptafluoropropane gas fire extinguisher bottle group, the dry powder fire extinguisher bottle group, and the self-priming pump. The present invention is mainly used for fire prevention and early fire extinguishing to prevent problems before they occur.

Description

Technical Field

[0001] The present invention relates to a fuel dispenser and a fuel station, in particular to a fuel dispenser and a fuel station capable of automatically extinguishing fire. Background Art

[0002] With the development of my country's energy market and the rapid growth of automobile consumption, fuel supply is closer to people's daily life and is becoming more and more important. Gasoline and diesel fueled by gas stations for various motor vehicles are light fuels with high fire and explosion risks. In particular, gasoline is flammable, explosive, easy to accumulate static electricity, volatile, easy to spread, easy to flow, easy to expand due to heat, toxic and corrosive. Relative density of gasoline (0.710~0.730) g / cm 3 , highly volatile, vapor is heavier than air (relative density 3.0-4.0), not easy to spread, explosion limit is 1.4%-7.6%, the minimum ignition energy of its vapor is only 0.2mJ, gasoline vapor is very easy to burn and explode when encountering open flame or static spark. GB50156 "Design and Construction Specifications for Gasoline and Gas Stations" makes fire prevention regulations for the site selection of gas stations, the safety distance outside the station, the fire protection distance of equipment in the station, and the plane layout of the gas station, including requirements for fire-fighting facilities and water supply and drainage. However, in the daily operation of gas stations, once a fire occurs, it is not easy to extinguish and the consequences are serious. It is very important for gas pumps and gas stations to discover and eliminate fire hazards as soon as possible, do a good job in fire prevention and early fire fighting, and prevent them before they burn.

[0003] Fuel dispensers are explosion-proof electromechanical products, involving explosion-proof electrical equipment and non-electrical equipment. The explosion-proof zoning of fuel dispensers is based on the national standard GB50156. Fuel dispensers are divided into dangerous areas 1, 2 and safe areas. The hydraulic box is dangerous area 1, and the computer box is safe area. The safety design, test inspection, protection measures and use of fuel dispensers are based on GB22380.1 "Fuel Filling Station Explosion-proof Safety Technology Part 1: Fuel Dispenser Explosion-proof Safety Technology", which meets the explosion-proof safety standards. With the extension of the use time, environmental changes, aging of seals, and untimely maintenance, the explosion-proof type of the fuel dispenser may fail, posing a safety hazard.

[0004] On the one hand, the failure of non-electrical equipment in the hydraulic box of the tanker causes an increase in the concentration of combustibles in oil, gas, and vapor. For example, the oil pump, flow measurement converter, filter, and pipeline interface in the hydraulic box of the tanker are loose due to the water hammer effect of the hydraulic pipeline, resulting in seal failure, oil seepage or oil leakage; the oil and gas recovery return air passage joint is disconnected due to the vibration of the vacuum pump, and the oil and gas directly overflow to the outside of the pipe. On the other hand, the explosion-proof failure of electrical equipment in the hydraulic box provides an ignition source. For example, the abnormal temperature rise caused by the failure of the explosion-proof motor coil and the explosion-proof solenoid valve coil; the terminal failure in the explosion-proof control box causes sparks, the flameproof box joint surface is scratched or has foreign matter, the sealing surface fails, and the cable connector compression rubber ring is aged or lost; the explosion-proof failure of the diesel low-temperature heating module overheats and becomes an ignition source; the grounding terminal of the electrical component is corroded and the contact is poor, resulting in excessive resistance and static sparks; the abnormal temperature rise caused by the cable short circuit failure becomes an ignition source, etc.

[0005] As a safe area, the computer box of the fuel dispenser also has safety hazards inside. Normally, there is no oil or gas inside the computer box, and the electrical components may be non-explosion-proof. PCB circuit boards, transformers, relays, polyvinyl chloride cables, plastic plugs, plastic shells of components, plastic wiring troughs and other difficult-to-burn and combustible materials. Generally, they become fire sources due to the burnout of electrical appliances, short circuits of electrical appliances or aging of wires.

[0006] Different fire protection structures should be adopted for different safety areas to more effectively deal with the occurrence of fire. Summary of the invention

[0007] The technical problem solved by the present invention is to provide a gas station and a gas station with an automatic fire extinguishing function, which are mainly used for fire prevention and early fire extinguishing to prevent accidents before they happen.

[0008] The technical means adopted by the present invention are described as follows.

[0009] A fuel dispenser with automatic fire extinguishing function, comprising a computer box and a hydraulic box connected to each other, characterized in that: the computer box comprises an MCU microprocessor, a temperature sensor, a smoke sensor, a power module, a drive module, an alarm speaker, and a heptafluoropropane gas fire extinguisher bottle group;

[0010] The hydraulic box includes explosion-proof temperature sensor, explosion-proof smoke sensor, explosion-proof flame sensor, explosion-proof oil and gas concentration sensor, multi-purpose dry powder fire extinguisher bottle set, and self-priming pump;

[0011] Among them, the temperature sensor, smoke sensor, explosion-proof temperature sensor, explosion-proof smoke sensor, explosion-proof flame sensor, explosion-proof oil and gas concentration sensor, and power module are connected to the MCU microprocessor;

[0012] The MCU microprocessor is connected to the driving module, and the driving module is connected to the alarm speaker, the heptafluoropropane gas fire extinguisher bottle group, the dry powder fire extinguisher bottle group and the self-priming pump.

[0013] The drive module is also connected to a submersible pump or a self-priming pump. The submersible pump is provided with an emergency cut-off valve. The power supply module includes an emergency power supply and a mains power supply.

[0014] The temperature sensor and the smoke sensor are installed on the upper part of the computer case, the explosion-proof temperature sensor and the explosion-proof smoke sensor are installed on the upper part of the hydraulic case; the explosion-proof oil and gas concentration sensor is arranged at the lower part of the hydraulic case, and the explosion-proof flame sensor is arranged at an unobstructed position on the upper part of the hydraulic case.

[0015] The fuel dispenser is also provided with an intelligent fire extinguisher triggered by mechanical linkage, which includes a fire extinguisher body, a nozzle for spraying fire extinguishing materials is provided above the fire extinguisher body, a pressure column for starting the nozzle to spray fire extinguishing materials is connected above the nozzle, a pressure rod parallel to the horizontal plane is laterally connected to the top of the pressure column, and a first rotating shaft is connected to the side of the pressure rod close to the pressure column; a first spring fixed end is provided directly above the first rotating shaft, and a spring is connected to the first spring fixed end, and the other end of the spring is connected to the side of the pressure rod away from the pressure column; the outermost end of the pressure rod is connected to a limiting mechanism for blocking the pressure rod.

[0016] The limiting mechanism comprises a longitudinal connecting rod arranged vertically in the longitudinal direction, a stopper is arranged at the connection position between the longitudinal connecting rod and the pressure rod, and the pressure rod is blocked by the stopper; the lower part of the longitudinal connecting rod is fixedly connected by a second rotating shaft, and the upper end of the longitudinal connecting rod is connected to the oil leakage linkage mechanism.

[0017] The oil leakage linkage mechanism comprises an oil outlet pipeline for conveying gasoline, wherein an emergency shut-off valve is arranged in the middle of the oil outlet pipeline, the emergency shut-off valve is rotatably connected to a rotating connecting rod, the upper end of the rotating connecting rod is rotatably connected to a transverse connecting rod via a third rotating shaft, and the other end of the transverse connecting rod is connected to the upper end of the longitudinal connecting rod via a fourth rotating shaft (35).

[0018] A gas station with an automatic fire extinguishing function is provided. The gas station is provided with a roof, and a plurality of gas dispensers as described above are arranged under the roof.

[0019] A number of automatic tracking fire monitors are arranged under the ceiling. The automatic tracking fire monitors are provided with detection devices and nozzles. The nozzles are connected to the fire liquid inlet pipe, and the fire liquid inlet pipe is connected to the fire liquid spraying device. The automatic tracking fire monitor is also provided with a rotating platform, and the nozzles are placed on the rotating platform.

[0020] The automatic tracking fire monitor (2) is arranged above the fuel dispenser (12).

[0021] The detection device (21) is an infrared sensor, a digital image sensor, a temperature sensor, a flame sensor, a smoke sensor, or an oil and gas concentration sensor.

[0022] The beneficial effects of the present invention are as follows: reducing the risk of accidental fires at gas stations, improving the safety factor, and reducing casualties and economic losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is the overall structural block diagram of the fuel dispenser of the present invention.

[0024] Figure 2 This is a schematic diagram of the structure of the intelligent fire extinguisher in the present invention in an unactivated state.

[0025] Figure 3 This is a schematic diagram of the structure of the intelligent fire extinguisher in the present invention in the startup state.

[0026] Figure 4 It is a schematic diagram of the structure of a gas station of the present invention.

[0027] Figure 5 It is a schematic diagram of the side structure of the automatic tracking fire monitor of the present invention.

[0028] Figure 6 It is a schematic diagram of the front structure of the automatic tracking fire monitor of the present invention.

[0029] Figure 7 It is a schematic diagram of the three-dimensional structure of the automatic tracking fire monitor of the present invention. DETAILED DESCRIPTION

[0030] like Figure 1 As shown, the present invention is a fuel dispenser with automatic fire extinguishing function, which includes a computer box and a hydraulic box connected to each other, wherein the computer box is a safe area, and the hydraulic box is a dangerous area 1, and a ventilation isolation area greater than 150mm can be set between them.

[0031] The key point of this case is that the computer box includes an MCU microprocessor, a temperature sensor, a smoke sensor, a power module, a driver module, an alarm speaker, and a heptafluoropropane gas fire extinguisher bottle set;

[0032] The hydraulic box includes an explosion-proof temperature sensor, an explosion-proof smoke sensor, an explosion-proof flame sensor, an explosion-proof oil and gas concentration sensor, a dry powder fire extinguisher bottle group, and a self-priming pump.

[0033] Among them, the temperature sensor, the smoke sensor, the explosion-proof temperature sensor, the explosion-proof smoke sensor, the explosion-proof flame sensor, the explosion-proof oil and gas concentration sensor, and the power module are connected to the MCU microprocessor; the power module may include an emergency power supply and a mains power supply.

[0034] The MCU microprocessor is connected to the driving module, and the driving module is connected to the alarm speaker, the heptafluoropropane gas fire extinguisher bottle group, the multi-purpose dry powder fire extinguisher bottle group and the self-priming pump.

[0035] As a computer case in a safe area, there is normally no oil or gas, and electrical components are generally explosion-proof, such as PCB circuit boards, transformers, relays, polyvinyl chloride cables, plastic plugs, component plastic shells, plastic wiring troughs and other flame-retardant and combustible materials. If a fire occurs, it is generally caused by the burning of electrical appliances, short circuits of electrical appliances or aging of wires, which become the source of ignition. When a fire occurs, smoke and temperature rise will first be generated, and open flames will not be generated instantly. Therefore, fire detectors can choose ordinary temperature sensors and smoke sensors.

[0036] According to the characteristics of fire hazard identification and combustion in the hydraulic box, fire detectors should be selected, including explosion-proof temperature sensors for detecting temperature rise and explosion-proof smoke sensors for detecting smoke. If gasoline is burning, the open flame burns quickly, so an explosion-proof flame sensor should be selected. Due to the increase in oil and gas concentration caused by pipeline interface leakage, an explosion-proof oil and gas concentration sensor should be selected. When the oil and gas concentration reaches 25% of the lower explosion limit, early warning, ventilation, and system maintenance should be carried out.

[0037] In addition, the temperature of the temperature sensors in the computer box and the hydraulic box is optimally set to 76°C.

[0038] The drive module is also connected to a submersible pump or a self-priming pump. If it is a submersible pump, an emergency shut-off valve is provided. The emergency shut-off valve here is a prior art, and there is a low melting point alloy in the emergency shut-off valve. The operating temperature of the low melting point alloy is 71-77°C, and 76°C is the best. The temperature of the temperature sensor matches the operating temperature of the low melting point alloy, so it is also preferably set to 76°C.

[0039] Through the identification of hazardous sources of the fuel dispenser computer case and hydraulic case, according to the characteristics of different combustibles and ignition sources, the possible fires in the computer case are mainly Class A (solid) surface fires and Class E (electrical) fires, which can be extinguished with heptafluoropropane gas fire extinguishing agent, which is colorless, odorless, non-conductive, and has no secondary pollution gas and has high fire extinguishing efficiency; the hydraulic case may have Class A (solid) surface fires, Class B (liquid) fires, and Class E (electrical) fires, which can be extinguished with Class ABC multi-purpose dry powder fire extinguishers.

[0040] The temperature sensor and smoke sensor are installed on the upper part of the computer case, and the explosion-proof temperature sensor and explosion-proof smoke sensor are installed on the upper part of the hydraulic case. When a fire occurs, the smoke and temperature rise, which is convenient for early detection; the explosion-proof oil and gas concentration sensor is set at the lower part of the hydraulic case. The oil and gas concentration sensor should be arranged at the lower part of the hydraulic case. The specific gravity of gasoline is heavier than that of air, and it is easy to detect concentration changes. The explosion-proof flame sensor is arranged in an unobstructed position on the upper part of the hydraulic case to facilitate early detection of open flames.

[0041] The MCU microprocessor is connected to the temperature sensor, smoke sensor, explosion-proof temperature sensor, explosion-proof smoke sensor, explosion-proof flame sensor, and explosion-proof oil and gas concentration sensor. In addition, the MCU microprocessor controls the alarm speaker, heptafluoropropane gas fire extinguisher bottle group, dry powder fire extinguisher bottle group, self-priming pump and submersible oil pump through the driver module. The MCU microprocessor can control the fire extinguisher bottle group to spray fire extinguishing materials according to the feedback of each sensor, or cut off the power supply of the fuel dispenser and switch to emergency power supply, and sound an alarm, etc.

[0042] Temperature sensors and smoke sensors are used to detect the temperature and smoke concentration of the computer case. Explosion-proof temperature sensors, explosion-proof smoke sensors, explosion-proof flame sensors, and explosion-proof oil and gas concentration sensors are used to detect the temperature, smoke concentration, flame, and oil and gas concentration inside the hydraulic tank of the fuel dispenser.

[0043] The MCU microprocessor, the input end is connected to the above-mentioned various sensor modules, and the output end is connected to the drive module. The MCU microprocessor is used to receive the induction signal sent by the sensor module and send a control signal to the drive module. The drive module drives the heptafluoropropane gas fire extinguisher bottle group and the dry powder fire extinguisher bottle group to extinguish the fire. The power supply module is used to maintain the power supply of the system. When a fire occurs, the mains power supply is cut off, and the emergency power supply is started to enter the emergency working state. In the event of a fire, the power supply of the tanker can also be automatically cut off, and the operation of the self-contained pump and submersible pump can be stopped to prevent continued oil supply. When the fire temperature of the hydraulic box of the submersible pump tanker is 76℃, the low melting point alloy of the emergency cut-off valve melts, automatically closes the channel valve, and cuts off the oil supply of the oil circuit.

[0044] The trigger linkage signal of the fire extinguisher bottle group should be a combination of two independent sensors of different types, such as a smoke sensor-temperature sensor combination, or a temperature-flame combination, to avoid false operation. When the oil and gas concentration reaches 25% of the lower explosion limit, an early warning will be issued, and the fire extinguisher will not be triggered to extinguish the fire. Maintenance measures will be taken to ventilate and repair leaking parts.

[0045] The gas station can use the keyboard to set the alarm and the temperature for activating the fire extinguisher, set the oil and gas concentration for early warning, and even query the temperature and oil and gas concentration in real time.

[0046] like Figure 2-3As shown, the gas station is also provided with an intelligent fire extinguisher triggered by mechanical linkage, which includes a fire extinguisher body 1, and a nozzle 11 for spraying fire extinguishing materials is provided above the fire extinguisher body 1. The direction of the nozzle can be set according to needs, for example, toward the position where the fire is most likely to be caused, such as when used in a gas station, toward the position of the oil outlet pipeline 3. A pressure column 12 is connected above the nozzle 11 for starting the nozzle to spray fire extinguishing materials. Pressing the pressure column fire extinguisher will spray fire extinguishing materials. The focus of this case is that a pressure rod 13 parallel to the horizontal plane is laterally connected to the top of the pressure column 12, and a first rotating shaft 14 is connected to the side of the pressure rod 13 close to the pressure column 12; a first spring fixed end 15 is provided directly above the first rotating shaft 14, and a spring 16 is connected to the first spring fixed end 15, and the other end of the spring 16 is connected to the side of the pressure rod 13 away from the pressure column 12; the outermost end of the pressure rod 13 is connected to a limiting mechanism for blocking the pressure rod 13. By utilizing the effect of the limiting mechanism, in the case of Figure 1 In the normal state, the pressure rod is parallel to the horizontal plane and the fire extinguisher does not start. When encountering a fire, the limiting mechanism cancels the limiting effect on the pressure rod, and the pressure rod is pulled upward by the spring in a purely physical way, while squeezing the pressure column and spraying out fire extinguishing materials at the first time. This simplest physical intelligent structure is low in cost, simple in structure, and more reliable than electronic equipment. Especially in extreme cases, even if the circuit is burned, it will not affect the activation of the intelligent fire extinguisher.

[0047] The limiting mechanism here can also be a purely physical structure as shown in the present embodiment. The limiting mechanism includes a longitudinal connecting rod 2 arranged vertically in the longitudinal direction, and a block 21 is provided at the connection position between the longitudinal connecting rod 2 and the pressure rod 13, and the block 21 is used to block the pressure rod 13; the lower part of the longitudinal connecting rod 2 is fixedly connected by a second rotating shaft 22, and the upper end of the longitudinal connecting rod 2 is connected to the oil leakage linkage mechanism. Once an oil leak occurs, the longitudinal connecting rod will tilt so that the block loses its limiting effect on the pressure rod, thereby starting the entire intelligent fire extinguisher to extinguish the fire. Here, a simple physical structure is also used for limiting. Of course, more complex electronic devices or other mechanical structures can also be used to achieve the same function.

[0048] The oil leakage linkage mechanism in this embodiment includes an oil outlet pipeline 3 for conveying gasoline, an emergency shut-off valve 31 is arranged in the middle of the oil outlet pipeline 3, the emergency shut-off valve 31 is rotatably connected to a rotating connecting rod 32, the upper part of the rotating connecting rod 32 is rotated through a third rotating shaft 33 to be connected to a transverse connecting rod 34, and the other end of the transverse connecting rod 34 is connected to the upper end of the longitudinal connecting rod 2 through a fourth rotating shaft 35. The emergency shut-off valve here is a common device. In this embodiment, when a car or other object hits the fuel dispenser, the emergency shut-off valve will be activated, which drives the rotating connecting rod to rotate, thereby pulling the longitudinal connecting rod to activate the intelligent fire extinguisher of the present invention. It is basically also a physical structure punishment, which is safe and reliable.

[0049] Of course, the relevant devices in this case can also be replaced by other electronic or mechanical devices, such as temperature sensors, infrared detectors, smoke detectors, etc. Once a fire is detected, the oil leakage linkage mechanism will be immediately activated to drive the limit mechanism to release the limit, so that the fire extinguisher body can perform fire extinguishing action. In addition, the relevant components and shafts in this case can be installed on the corresponding frame, inner wall or other locations where they can be installed, and they are not the focus of this case and will not be repeated here.

[0050] The smart fire extinguisher in this case is commonly used in gas pumps at gas stations, reducing the risk of accidental fires at gas stations, improving the safety factor, and reducing casualties and economic losses.

[0051] like Figure 4-7 As shown, the gas station of the present invention, the gas station 41 is provided with a ceiling 411, and a plurality of gas pumps 412 as described above are arranged below the ceiling 411, and a plurality of automatic tracking fire monitors 42 are arranged below the ceiling 411, and the automatic tracking fire monitor 42 is provided with a detection device 421 and a nozzle 422, and the nozzle 422 is connected to a fire liquid inlet pipe 423, and the fire liquid inlet pipe 423 is connected to a fire liquid spraying device (not marked in the figure); the automatic tracking fire monitor 42 is also provided with a rotating platform 424, and the nozzle 422 is arranged on the rotating platform 424.

[0052] The automatic tracking fire monitor 42 is preferably arranged above the fuel dispenser 412 .

[0053] The detection device 421 may be an infrared sensor, a digital image sensor, a temperature sensor, a flame sensor, a smoke sensor, an oil and gas concentration sensor, or other devices that can detect fire.

[0054] The fire-fighting liquid spraying device is preferably compatible with foam fire extinguishing agent, and other types of fire extinguishing agents may also be accommodated.

[0055] The gas station structure of the present invention is equipped with an automatic tracking fire cannon on the ceiling. The automatic tracking fire cannon uses a detection device for detection, such as infrared and digital image sensors to identify the occurrence of fire in the first time. It can also monitor the status of the gas station's accessory equipment in real time, and identify the location of the fire, and immediately start the fire cannon to spray foam fire extinguishing agents that are harmless to the human body to extinguish the fire. The turntable can also adjust the spray direction to achieve a better fire extinguishing effect, and even achieve fire extinguishing in the area around the gas station without blind spots. The electronic equipment and control equipment involved in this case, such as the detection device, the related electronic structure that allows the turntable to rotate, the fire-fighting liquid spraying device, etc., are all existing mature technologies and will not be repeated here.

Claims

1. A fuel dispenser with automatic fire extinguishing function, comprising a computer box and a hydraulic box connected to each other, characterized in that: The computer box includes an MCU microprocessor, a temperature sensor, a smoke sensor, a power module, a drive module, an alarm speaker, and a heptafluoropropane gas fire extinguisher bottle set; The hydraulic box includes explosion-proof temperature sensor, explosion-proof smoke sensor, explosion-proof flame sensor, explosion-proof oil and gas concentration sensor, multi-purpose dry powder fire extinguisher bottle set, and self-priming pump; Among them, the temperature sensor, smoke sensor, explosion-proof temperature sensor, explosion-proof smoke sensor, explosion-proof flame sensor, explosion-proof oil and gas concentration sensor, and power module are connected to the MCU microprocessor; The MCU microprocessor is connected to the driving module, and the driving module is connected to the alarm speaker, the heptafluoropropane gas fire extinguisher bottle group, the dry powder fire extinguisher bottle group and the self-priming pump; The drive module is also connected to a submersible pump or a self-priming pump, the submersible pump is provided with an emergency cut-off valve, and the power supply module includes an emergency power supply and a mains power supply; The fuel dispenser is also provided with a mechanically linked triggered intelligent fire extinguisher, the intelligent fire extinguisher comprising a fire extinguisher body (1), a nozzle (11) for spraying fire extinguishing materials being provided above the fire extinguisher body (1), a pressure column (12) for starting the nozzle to spray fire extinguishing materials being connected above the nozzle (11), a pressure rod (13) parallel to a horizontal plane being laterally connected to the top of the pressure column (12), a first rotating shaft (14) being connected to the side of the pressure rod (13) close to the pressure column (12); a first spring fixed end (15) being provided directly above the first rotating shaft (14), the first spring fixed end (15) being connected to a spring (16), the other end of the spring (16) being connected to the side of the pressure rod (13) away from the pressure column (12); the outermost end of the pressure rod (13) being connected to a limiting mechanism for blocking the pressure rod (13); The limiting mechanism comprises a longitudinal connecting rod (2) arranged vertically in the longitudinal direction, a stopper (21) being provided at the connection position between the longitudinal connecting rod (2) and the pressure rod (13), and the stopper (21) is used to block the pressure rod (13); the lower part of the longitudinal connecting rod (2) is fixedly connected via a second rotating shaft (22), and the upper end of the longitudinal connecting rod (2) is connected to the oil leakage linkage mechanism; The oil leakage linkage mechanism comprises an oil outlet pipeline (3) for conveying gasoline, an emergency shut-off valve (31) being arranged in the middle of the oil outlet pipeline (3), the emergency shut-off valve (31) being rotatably connected to a rotating connecting rod (32), the upper part of the rotating connecting rod (32) being rotatably connected to a transverse connecting rod (34) via a third rotating shaft (33), the other end of the transverse connecting rod (34) being connected to the upper end of the longitudinal connecting rod (2) via a fourth rotating shaft (35); When a car or other object hits the gas pump, the emergency shut-off valve will be activated, which will drive the rotating connecting rod to rotate, thereby pulling the longitudinal connecting rod to activate the smart fire extinguisher.

2. A fuel dispenser with automatic fire extinguishing function as claimed in claim 1, characterized in that: The temperature sensor and the smoke sensor are installed on the upper part of the computer case, the explosion-proof temperature sensor and the explosion-proof smoke sensor are installed on the upper part of the hydraulic case; the explosion-proof oil and gas concentration sensor is arranged at the lower part of the hydraulic case, and the explosion-proof flame sensor is arranged at an unobstructed position on the upper part of the hydraulic case.

3. A gas station with automatic fire extinguishing function, the gas station (41) is provided with a roof (411), characterized in that: A plurality of refueling machines (412) as described in claim 1 or 2 are arranged under the ceiling (411).

4. A gas station with automatic fire extinguishing function as claimed in claim 3, characterized in that: A plurality of automatic tracking fire monitors (42) are arranged below the ceiling (411). The automatic tracking fire monitors (42) are provided with a detection device (421) and a nozzle (422). The nozzle (422) is connected to a fire liquid inlet pipe (423), and the fire liquid inlet pipe (423) is connected to a fire liquid spraying device. The automatic tracking fire monitor (42) is also provided with a rotating platform (424), and the nozzle (422) is arranged on the rotating platform (424).

5. A gas station with automatic fire extinguishing function as claimed in claim 4, characterized in that: The automatic tracking fire monitor (42) is arranged above the fuel dispenser (412).

6. A gas station with automatic fire extinguishing function as claimed in claim 4, characterized in that: The detection device (421) is an infrared sensor, a digital image sensor, a temperature sensor, a flame sensor, a smoke sensor, or an oil and gas concentration sensor.

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