Simulation device for forest fire caused by power transmission line

Abstract

The invention provides a simulation device for forest fire caused by power transmission lines, and relates to the field of simulation devices. The simulation device for the forest fire caused by the power transmission line comprises an operation device, a condensation recovery device, a lighting device and a safety device, the condensation recovery device is arranged at the bottom end of the operation device, the lighting device is arranged in the operation device, the safety device is arranged at the front end of the operation device, and the operation device comprises a shell. A control body is fixedly connected to the lower portion of the rear end of the shell. By arranging the operation device, the process that a power transmission line causes a fire disaster is effectively simulated, the experiment accuracy is improved, by arranging the lighting device, the experiment progress is effectively observed in the experiment process, the experiment intuition is improved, by arranging the condensation recovery device, external waste gas can be prevented from entering the device while waste water is discharged, and the device is convenient to use. And by arranging the safety device, the safety door is effectively kept in a locking state in the experiment process, and the safety during use is improved.

Description

Technical Field

[0001] The invention relates to the technical field of simulation devices, in particular to a simulation device for forest fires caused by power transmission lines. Background Art

[0002] In modern society, power grids cover forest areas extensively, providing power support for surrounding residents and related facilities. However, accidents of forest fires caused by transmission lines occur frequently, which has become a serious challenge to forest resource protection and safe power operation.

[0003] Although the prior art uses simulation devices to test the conditions for the occurrence of forest fires, there are safety issues during the experiment, which leads to long-term experiments that are prone to cause harm to personnel and are difficult to meet the needs of the experiments. Therefore, technical personnel in this field provide a simulation device for forest fires caused by transmission lines to solve the problems raised in the above background technology. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the shortcomings of the prior art, the present invention provides a simulation device for forest fires caused by power transmission lines, which solves the problems that safety cannot be guaranteed during the experiment and the experimental progress cannot be observed.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a simulation device for forest fires caused by power transmission lines, comprising an operating device, a condensation recovery device, a lighting device and a safety device, wherein the condensation recovery device is arranged at the bottom of the operating device, the lighting device is arranged inside the operating device, and the safety device is arranged at the front end of the operating device, the operating device comprises a shell, a control body is fixedly connected to the lower position of the rear end of the shell, ventilation pipes are fixedly connected to the upper positions of both sides of the electric heating pipe, a first filter is fixedly connected to the inner wall of the ventilation pipe on one side of the shell, a wind speed regulator is fixedly connected to the middle of the inner wall of the ventilation pipe on one side of the shell, and an anemometer is fixedly connected to the middle of the inner wall of the ventilation pipe on the other side of the shell, compressors are fixedly connected to the front positions of the middle of both sides of the shell, an electric heating pipe is fixedly connected to the lower position of one side of the shell, a power supply adjustment module is fixedly connected to the middle of one side of the shell, and the inner wall of the shell is fixedly connected to the lower position. The cam is provided with a first mounting bracket, and the second mounting bracket has a first end fixedly connected to the cam and a second end fixedly connected to the cam.

[0008] Preferably: the condensation recovery device includes a waste water tank, a drain pipe is fixedly connected to the front position of the other side of the waste water tank, a flap is rotatably connected to the inner wall of the drain pipe, a connecting pipe is fixedly connected to the rear position of the other side of the waste water tank, a condenser is fixedly connected to the other end of the connecting pipe, a gas collecting hopper is fixedly connected to the middle of the bottom end of the condenser, and the waste water tank is fixedly connected to the bottom end of the shell.

[0009] Preferably; the lighting device includes two second mounting frames and a fixed frame, the inner side walls of the two second mounting frames are respectively rotatably connected with the second screw rods, the side walls of the two second screw rods are respectively threadedly connected with sliders, the side walls of the two sliders are respectively rotatably connected with lighting lamps, one ends of the two second screw rods respectively pass through the second mounting frames and are fixedly connected with pulleys, the side walls of the two pulleys are provided with belts, the rear end of the fixed frame is fixedly connected with the second motor, the two second mounting frames are respectively fixedly connected to the two sides of the top end of the inner wall of the shell, and the fixed frame is fixedly connected to the upper position of one side of the rear end of the shell.

[0010] Preferably: the safety device includes a safety door and an electromagnet, a handle is fixedly connected to the lower middle part of the front end of the safety door, a spring is fixedly connected to the top of the inner wall of the safety door, the inner wall of the safety door is slidably connected to a limiting block, and the safety door is hinged to the front end of the shell.

[0011] Preferably: the output end of the first motor passes through the rear end of the shell and the first screw rod, the sliding frame is slidably connected to the side wall of the sliding rod, one end of the transmission line passes through the shell and is electrically connected to the power regulation module, the other side of the electric heating tube passes through one side of the shell, the two ventilation pipes are respectively connected to the inside of the shell, and the bottom end of the shell has an inclination angle of three degrees.

[0012] Preferably: the top of the gas collecting hopper passes through the top of the inner wall of the shell and is connected to the inside of the condenser, the rear side of the top of the waste water tank is connected to the rear side of the bottom of the shell, the flap and the inner wall of the drain pipe are adapted to each other, one end of the connecting pipe is connected to the inside of the condenser, and the other end of the connecting pipe is connected to the inside of the waste water tank.

[0013] Preferably: the rear end of the observation fixing frame at the output end of the second motor is fixedly connected to the middle of the rear end of the pulley on one side of the rear end of the shell, and the two sliders are respectively slidably connected to both sides of the top end of the inner wall of the shell.

[0014] Preferably, the electromagnet is fixedly connected to the lower middle part of the front end of the shell, the other end of the spring is fixedly connected to the top of the limit block, and the limit block and the front end of the shell are adapted to each other.

[0015] Working principle: First, according to the experimental requirements, the voltage and current values ​​of the transmission line 1010 are set by using the power regulation module 103, and the combustible experimental sample required for simulation is placed on the placement table 1011, and the first motor 1019 is turned on according to the experimental requirements to drive the first screw rod 1021 to rotate, and the height of the sample can be adjusted by using the steam generator 1016, so that the distance between the transmission line 1010 and the sample can be adjusted, and the steam generator 1016 is turned on to adjust the humidity environment inside the shell 107, and the power regulation module 103 and the electric heating tube 104 are used to adjust the temperature inside the shell 107, and finally the wind speed inside the shell 107 is adjusted by the wind speed regulator 108, and the inside of the shell 107 is adjusted to the various conditions required for the experiment. During the experiment, The smoke alarm 109, the temperature sensor 1013 and the humidity sensor 1014 are used to monitor the environment inside the shell 107 in real time. At the same time, before the experiment, the second motor 303 can be used to drive the pulley 301 to rotate, so that the second screw rod 308 can rotate, and the two lighting lamps 306 can be moved to the appropriate position. After the experiment, the gas collecting hopper 206 can be opened to absorb and condense the water mist in the shell 107, and the waste water can be recovered to the waste water tank 202 through the connecting pipe 203 and discharged through the drain pipe 204. Finally, after the experiment is completed, when the indicators in the shell 107 gradually become normal, the electromagnet 402 is powered off, and the limit block 405 is recovered to the safety door 401 under the action of the spring 404. At this time, the safety door 401 can be rotated to operate the inside of the shell 107.

[0016] (III) Beneficial effects

[0017] The present invention provides a simulation device for forest fires caused by power transmission lines. It has the following beneficial effects:

[0018] 1. By setting the operating device, according to the experimental requirements, the voltage and current values ​​of the transmission line are set by using the power regulation module, and the combustible experimental sample required for simulation is placed on the placement table, and the first motor is turned on according to the experimental requirements to drive the first screw to rotate. At the same time, the height of the sample can be adjusted by using the steam generator, so that the distance between the transmission line and the sample can be adjusted, the steam generator is turned on to adjust the humidity environment inside the shell, and the power regulation module and the electric heating tube are used to adjust the temperature inside the shell. Finally, the wind speed inside the shell is adjusted by the wind speed regulator, and the inside of the shell is adjusted to the various conditions required for the experiment. During the experiment, the smoke alarm, temperature sensor and humidity sensor can be used to monitor the environment inside the shell in real time, effectively simulating the process of fire caused by the transmission line and improving the accuracy of the experiment.

[0019] 2. By setting up the lighting device, before the experiment, the second motor can be used to drive the pulley to rotate, thereby causing the second screw to rotate, and the two lighting lamps can be moved to appropriate positions. During the experiment, the progress of the experiment can be effectively observed, thereby improving the intuitiveness of the experiment.

[0020] 3. By setting up a condensation recovery device, after the experiment, the gas collecting hopper can be opened to absorb and condense the water mist in the shell, and the waste water can be recovered to the waste water tank through the connecting pipe and discharged through the drain pipe, which can effectively collect the waste water. A flap is set in the drain pipe to prevent external exhaust gas from entering the device while discharging the waste water, thereby avoiding affecting the experiment.

[0021] 4. By setting up a safety device, after the experiment is completed, when the indicators in the shell gradually return to normal, the electromagnet is powered off, and the limit block is recovered into the safety door under the action of the spring. At this time, the safety door can be turned to operate the inside of the shell, effectively keeping the safety door in a locked state during the experiment, thereby improving safety during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 It is a structural schematic diagram of another perspective of the present invention;

[0024] Figure 3 It is a front view structural schematic diagram of the present invention;

[0025] Figure 4 It is a front view cross-sectional structural schematic diagram of the present invention;

[0026] Figure 5 It is a schematic diagram of the side cross-sectional structure of the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the operating device of the present invention.

[0028] Among them, 1. operating device; 101. ventilation pipe; 102. first filter; 103. power supply adjustment module; 104. electric heating pipe; 105. compressor; 106. observation window; 107. shell; 108. wind speed regulator; 109. smoke alarm; 1010. transmission line; 1011. placement table; 1012. anemometer; 1013. temperature sensor; 1014. humidity sensor; 1015. telescopic rod; 1016. steam generator; 1017. second filter; 1018. sliding frame; 1019. first motor; 1020. first mounting frame; 1021. The first screw rod; 1022, insulating clamp; 1023, sliding rod; 2, condensation recovery device; 201, condenser; 202, waste water tank; 203, connecting pipe; 204, drain pipe; 205, flap; 206, gas collecting hopper; 3, lighting device; 301, pulley; 302, belt; 303, second motor; 304, fixing bracket; 305, second mounting bracket; 306, lighting lamp; 307, sliding block; 308, second screw rod; 4, safety device; 401, safety door; 402, electromagnet; 403, handle; 404, spring; 405, limit block; 5, control body. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Embodiment 1:

[0031] like Figure 1-6As shown, an embodiment of the present invention provides a simulation device for forest fires caused by power transmission lines, including an operating device 1, a condensation recovery device 2, a lighting device 3 and a safety device 4, wherein the condensation recovery device 2 is arranged at the bottom of the operating device 1, the lighting device 3 is arranged inside the operating device 1, and the safety device 4 is arranged at the front end of the operating device 1, and the operating device 1 includes a shell 107, a control body 5 is fixedly connected to the lower position of the rear end of the shell 107, ventilation pipes 101 are fixedly connected to the upper positions of both sides of the electric heating pipe 104, a first filter screen 102 is fixedly connected to the inner side wall of the ventilation pipe 101 on one side of the shell 107, a wind speed regulator 108 is fixedly connected to the middle of the inner side wall of the ventilation pipe 101 on one side of the shell 107, and a ventilation pipe 101 on the other side of the shell 107 is fixedly connected to the inner side wall of the ventilation pipe 101. An anemometer 1012 is fixedly connected to the middle of the inner wall of the air pipe 101, a compressor 105 is fixedly connected to the middle of both sides of the shell 107 near the front, an electric heating pipe 104 is fixedly connected to the lower position of one side of the shell 107, a power supply adjustment module 103 is fixedly connected to the middle of one side of the shell 107, a second filter 1017 is fixedly connected to the lower position of the inner wall of the shell 107, a telescopic rod 1015 is fixedly connected to the rear side of the top of the second filter 1017, and a placing table 1011 is fixedly connected to the movable end of the telescopic rod 1015, first mounting brackets 1020 are fixedly connected to both sides of the inner wall of the shell 107 and at the top of the second filter 1017, and a first screw rod 1 is rotatably connected to the inner wall of the first mounting bracket 1020 located on one side of the inner wall of the shell 107 021, a sliding frame 1018 is threadedly connected to the side wall of the first screw rod 1021, a sliding rod 1023 is fixedly connected to the inner wall of the first mounting frame 1020 located on the other side of the inner wall of the shell 107, insulating clips 1022 are fixedly connected to the top of the sliding frame 1018 on both sides, and a power transmission line 1010 is arranged on the inner wall of the two insulating clips 1022, an observation window 106 is fixedly connected to the middle of the rear end of the shell 107, a smoke alarm 109 is fixedly connected to the middle of the top of the inner wall of the shell 107, a humidity sensor 1014 is fixedly connected to one side of the rear end of the inner wall of the shell 107, and a temperature sensor 1013 is fixedly connected to the other side of the rear end of the inner wall of the shell 107, and a steam generator 101 is fixedly connected to the rear positions of the two sides of the top of the second filter 1017 6. A first motor 1019 is fixedly connected to one side of the lower rear end of the shell 107. By setting the operating device 1, according to the experimental requirements, the voltage and current values ​​of the power transmission line 1010 are set by using the power regulation module 103, and the simulated combustible experimental sample required is placed on the placement table 1011, and the first motor 1019 is turned on according to the experimental requirements to drive the first screw rod 1021 to rotate, and the height of the sample can be adjusted by using the steam generator 1016, so that the distance between the power transmission line 1010 and the sample can be adjusted, and the steam generator 1016 is turned on to adjust the humidity environment inside the shell 107, and the power regulation module 103 and the electric heating pipe 104 are used to adjust the temperature inside the shell 107.Finally, the wind speed inside the shell 107 is adjusted by the wind speed regulator 108 to adjust the inside of the shell 107 to the various conditions required for the experiment. During the experiment, the smoke alarm 109, the temperature sensor 1013 and the humidity sensor 1014 can be used to monitor the environment inside the shell 107 in real time, effectively simulating the process of the transmission line 1010 causing a fire, thereby improving the accuracy of the experiment.

[0032] The output end of the first motor 1019 passes through the rear end of the shell 107 and is connected to the first screw rod 1021. The sliding frame 1018 is slidably connected to the side wall of the sliding rod 1023. One end of the power transmission line 1010 passes through the shell 107 and is electrically connected to the power regulation module 103. The other side of the electric heating tube 104 passes through one side of the shell 107. The two ventilation pipes 101 are respectively connected to the inside of the shell 107. The bottom end of the shell 107 has an inclination angle of three degrees.

[0033] The condensation recovery device 2 includes a wastewater tank 202, and a drain pipe 204 is fixedly connected to the front position of the other side of the wastewater tank 202, and a flap 205 is rotatably connected to the inner wall of the drain pipe 204, and a connecting pipe 203 is fixedly connected to the rear position of the other side of the wastewater tank 202, and the other end of the connecting pipe 203 is fixedly connected to the condenser 201, and an air collecting hopper 206 is fixedly connected to the middle of the bottom end of the condenser 201, and the wastewater tank 202 is fixedly connected to the bottom end of the shell 107. By setting the condensation recovery device 2, after the experiment is over, the air collecting hopper 206 can be opened to absorb and condense the water mist in the shell 107, and the wastewater can be recovered to the wastewater tank 202 through the connecting pipe 203, and discharged through the drain pipe 204, so as to effectively collect the wastewater, and a flap 205 is set in the drain pipe 204, which can prevent external exhaust gas from entering the device while discharging the wastewater, thereby avoiding affecting the experiment.

[0034] The top of the gas collecting hopper 206 passes through the top of the inner wall of the shell 107 and is connected to the interior of the condenser 201. The rear side of the top of the waste water tank 202 is connected to the rear side of the bottom of the shell 107. The flap 205 and the inner wall of the drain pipe 204 are adapted to each other. One end of the connecting pipe 203 is connected to the interior of the condenser 201, and the other end of the connecting pipe 203 is connected to the interior of the waste water tank 202.

[0035] The lighting device 3 includes two second mounting frames 305 and a fixing frame 304, the inner side walls of the two second mounting frames 305 are rotatably connected with second screw rods 308, the side walls of the two second screw rods 308 are respectively threadedly connected with sliders 307, the side walls of the two sliders 307 are respectively rotatably connected with lighting lamps 306, one end of the two second screw rods 308 respectively penetrates the second mounting frames 305 and is fixedly connected with pulleys 301, the side walls of the two pulleys 301 are provided with belts 302, the rear end of the fixing frame 304 is fixedly connected with a second motor 303, the two second mounting frames 305 are respectively fixedly connected to the top sides of the inner side walls of the shell 107, and the fixing frame 304 is fixedly connected to the upper position of one side of the rear end of the shell 107. By setting the lighting device 3, before the experiment, the pulley 301 can be driven to rotate by the second motor 303, so that the second screw rod 308 can be rotated, and the two lighting lamps 306 can be moved to a suitable position, which effectively observes the progress of the experiment during the experiment and improves the intuitiveness of the experiment.

[0036] The rear end of the observation fixing frame 304 at the output end of the second motor 303 is fixedly connected to the middle of the rear end of the pulley 301 on one side of the rear end of the shell 107, and the two sliders 307 are slidably connected to both sides of the top of the inner wall of the shell 107 respectively.

[0037] The safety device 4 includes a safety door 401 and an electromagnet 402. A handle 403 is fixedly connected to the lower middle part of the front end of the safety door 401. A spring 404 is fixedly connected to the top of the inner wall of the safety door 401. The inner wall of the safety door 401 is slidably connected to a limit block 405. The safety door 401 is hinged to the front end of the shell 107. By setting the safety device 4, after the experiment is completed, when the indicators in the shell 107 gradually become normal, the electromagnet 402 is powered off, and the limit block 405 is recovered to the safety door 401 under the action of the spring 404. At this time, the safety door 401 can be rotated to operate the inside of the shell 107, which effectively keeps the safety door 401 in a locked state during the experiment, thereby improving safety during use.

[0038] The electromagnet 402 is fixedly connected to the lower middle part of the front end of the housing 107 , and the other end of the spring 404 is fixedly connected to the top of the limit block 405 , and the limit block 405 and the front end of the housing 107 are adapted to each other.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A simulation device for forest fires caused by power transmission lines, comprising an operating device (1), a condensation recovery device (2), a lighting device (3) and a safety device (4), wherein the condensation recovery device (2) is arranged at the bottom end of the operating device (1), the lighting device (3) is arranged inside the operating device (1), and the safety device (4) is arranged at the front end of the operating device (1), characterized in that: The operating device (1) comprises a shell (107), a control body (5) is fixedly connected to the lower rear end of the shell (107), ventilation pipes (101) are fixedly connected to the upper sides of the electric heating pipe (104), a first filter (102) is fixedly connected to the inner wall of the ventilation pipe (101) on one side of the shell (107), a wind speed regulator (108) is fixedly connected to the middle of the inner wall of the ventilation pipe (101) on one side of the shell (107), and an anemometer (1012) is fixedly connected to the middle of the inner wall of the ventilation pipe (101) on the other side of the shell (107). A compressor (105) is fixedly connected to the front middle of both sides of the shell (107), an electric heating pipe (104) is fixedly connected to the lower position of one side of the shell (107), a power adjustment module (103) is fixedly connected to the middle of one side of the shell (107), a second filter (1017) is fixedly connected to the lower position of the inner wall of the shell (107), a telescopic rod (1015) is fixedly connected to the rear side of the top of the second filter (1017), a placement table (1011) is fixedly connected to the movable end of the telescopic rod (1015), and both sides of the inner wall of the shell (107) and located at the second filter The top of the net (1017) is respectively fixedly connected to a first mounting frame (1020), the inner wall of the first mounting frame (1020) located on one side of the inner wall of the shell (107) is rotatably connected to a first screw rod (1021), the side wall of the first screw rod (1021) is threadedly connected to a sliding frame (1018), the inner wall of the first mounting frame (1020) located on the other side of the inner wall of the shell (107) is fixedly connected to a sliding rod (1023), the top of the sliding frame (1018) is respectively fixedly connected to two sides of the insulating clip (1022), and the inner walls of the two insulating clips (1022) are provided with a transmission line (1018). 10), an observation window (106) is fixedly connected to the middle of the rear end of the shell (107), a smoke alarm (109) is fixedly connected to the middle of the top end of the inner wall of the shell (107), a humidity sensor (1014) is fixedly connected to one side of the rear end of the inner wall of the shell (107), a temperature sensor (1013) is fixedly connected to the other side of the rear end of the inner wall of the shell (107), steam generators (1016) are fixedly connected to both sides of the top end of the second filter (1017) at the rear position, and a first motor (1019) is fixedly connected to one side of the lower position of the rear end of the shell (107).

2. The simulation device for forest fires caused by power transmission lines according to claim 1, characterized in that: The condensation recovery device (2) comprises a waste water tank (202), a drain pipe (204) is fixedly connected to the front position of the other side of the waste water tank (202), a flap (205) is rotatably connected to the inner wall of the drain pipe (204), a connecting pipe (203) is fixedly connected to the rear position of the other side of the waste water tank (202), the other end of the connecting pipe (203) is fixedly connected to the condenser (201), a gas collecting hopper (206) is fixedly connected to the middle of the bottom end of the condenser (201), and the waste water tank (202) is fixedly connected to the bottom end of the shell (107).

3. The simulation device for forest fires caused by power transmission lines according to claim 1, characterized in that; The lighting device (3) comprises two second mounting frames (305) and a fixed frame (304); the inner side walls of the two second mounting frames (305) are respectively rotatably connected to second screw rods (308); the side walls of the two second screw rods (308) are respectively threadedly connected to sliders (307); the side walls of the two sliders (307) are respectively rotatably connected to lighting lamps (306); one end of the two second screw rods (308) respectively passes through the second mounting frames (305) and is fixedly connected to pulleys (301); the side walls of the two pulleys (301) are provided with belts (302); the rear end of the fixed frame (304) is fixedly connected to a second motor (303); the two second mounting frames (305) are respectively fixedly connected to the top sides of the inner side walls of the housing (107); and the fixed frame (304) is fixedly connected to the upper position of one side of the rear end of the housing (107).

4. The simulation device for forest fires caused by power transmission lines according to claim 1, characterized in that: The safety device (4) comprises a safety door (401) and an electromagnet (402); a handle (403) is fixedly connected to the lower middle portion of the front end of the safety door (401); a spring (404) is fixedly connected to the top end of the inner wall of the safety door (401); a limit block (405) is slidably connected to the inner wall of the safety door (401); and the safety door (401) is hinged to the front end of the housing (107).

5. The simulation device for forest fires caused by power transmission lines according to claim 1, characterized in that: The output end of the first motor (1019) passes through the rear end of the shell (107) and the first screw rod (1021), the sliding frame (1018) is slidably connected to the side wall of the sliding rod (1023), one end of the power transmission line (1010) passes through the shell (107) and is electrically connected to the power regulation module (103), the other side of the electric heating pipe (104) passes through one side of the shell (107), the two ventilation pipes (101) are respectively connected to the inside of the shell (107), and the bottom end of the shell (107) is inclined at an angle of three degrees.

6. The simulation device for forest fires caused by power transmission lines according to claim 2, characterized in that: The top end of the gas collecting hopper (206) passes through the top end of the inner wall of the shell (107) and is connected to the inside of the condenser (201); the rear side of the top end of the waste water tank (202) is connected to the rear side of the bottom end of the shell (107); the flap (205) and the inner wall of the drain pipe (204) are adapted to each other; one end of the connecting pipe (203) is connected to the inside of the condenser (201); and the other end of the connecting pipe (203) is connected to the inside of the waste water tank (202).

7. The simulation device for forest fires caused by power transmission lines according to claim 3, characterized in that: The rear end of the observation fixing frame (304) at the output end of the second motor (303) is fixedly connected to the middle of the rear end of the pulley (301) on one side of the rear end of the housing (107), and the two sliders (307) are respectively slidably connected to both sides of the top end of the inner wall of the housing (107).

8. The simulation device for forest fires caused by power transmission lines according to claim 4, characterized in that: The electromagnet (402) is fixedly connected to the lower middle portion of the front end of the housing (107), the other end of the spring (404) is fixedly connected to the top of the limit block (405), and the limit block (405) and the front end of the housing (107) are adapted to each other.

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