A forest fire prevention warning device for mountain forestry

Abstract

The present invention relates to the technical field of fire prevention warning, and discloses a forest fire prevention warning device for mountain forestry, which includes a support rod. A camera unit and a control unit are provided on the support rod. The camera unit includes a monitor, and the control unit includes a PLC controller. A protection mechanism is provided on one side of the support rod, and the protection mechanism includes a housing. A protection chamber is provided inside the housing, and a first opening is provided at the top of the protection chamber. By setting the support rod, a cross bar for installing the equipment is provided on the support rod. Correspondingly, a protection mechanism buried underground is also provided on one side of the support rod. The support rod is rotatably connected to the base. When a fire occurs, only need to first adjust the position of the cross bar to make it face the direction of the housing, and then pull out the baffle, and the support rod will tilt. Driven by the support rod, the cross bar enters the housing. In this way, the housing buried underground can play a role in protecting the equipment on the cross bar during a fire.

Description

Technical Field

[0001] The present invention relates to the technical field of fire prevention early warning, and specifically relates to a forest fire prevention early warning device for mountain forestry. Background Art

[0002] Forest fire prevention has always been a major focus of current ecological protection. Because of its large coverage area and extremely many ignition sources, a tiny spark may trigger a large fire. Conventional forest fire early warning means adopt manual monitoring such as ground patrol, lookout tower monitoring, etc. to monitor the fire situation. This way not only has a large labor intensity but also has a poor early warning effect. With the continuous development of technology, forest fire early warning technologies are becoming more and more diverse. Currently, common forest fire early warning means include: remote wireless monitoring systems based on wireless / wired network technologies, unmanned aerial vehicle (UAV) cruising, satellite remote sensing monitoring, etc. Compared with the UAV cruising and satellite remote sensing monitoring methods, the wireless monitoring system has the advantages of low long-term operation cost, being able to achieve large-area and continuous monitoring, and being less affected by weather. However, when in use, since the wireless monitoring system needs to be fixed at the monitoring point and has poor flexibility, after a fire occurs, due to its immovable characteristic, the wireless monitoring system is easily burned by the fire. Summary of the Invention

[0003] The present invention provides a forest fire prevention early warning device for mountain forestry, which has the beneficial effect of being able to protect the monitoring equipment when a fire occurs, and solves the problem mentioned in the above background art that since the wireless monitoring system needs to be fixed at the monitoring point and has poor flexibility, after a fire occurs, due to its immovable characteristic, the wireless monitoring system is easily burned by the fire.

[0004] The present invention provides the following technical solution: A forest fire prevention early warning device for mountain forestry, including a support rod, on which a camera unit and a control unit are provided. The camera unit includes a monitor, and the control unit includes a PLC controller. A protection mechanism is provided on one side of the support rod, and the protection mechanism includes a housing. A protection chamber is provided inside the housing, and a first opening is provided at the top of the protection chamber;

[0005] The bottom of the support rod is provided with a base, and the support rod is rotatably connected to the base. A baffle is slidably connected to the base, and an electric push rod for adjusting the position of the baffle is provided on one side of the base. A cover plate is provided on the support rod.

[0006] As an optional solution of the forest fire prevention early warning device for mountain forestry of the present invention, wherein: A water storage bladder is provided on one side of the protection chamber. A joint for communicating with the protection chamber is provided below the water storage bladder, and a protruding portion is provided at the upper end of the water storage bladder. A water volume adjustment mechanism for adjusting the joint is provided inside the protection chamber.

[0007] As an alternative solution of the forest fire prevention warning device for mountain forestry according to the present invention, wherein: the water volume adjusting mechanism includes an end cover installed on the joint, a sliding block is provided on one side of the end cover, the sliding block is slidably connected to the outer shell, and a cutting knife is provided at one end of the sliding block close to the end cover, and an inclined surface is provided at the other end of the sliding block.

[0008] As an alternative solution of the forest fire prevention warning device for mountain forestry according to the present invention, wherein: the water volume adjusting mechanism includes a valve body installed on the joint, a valve rod is provided inside the valve body, and the valve rod is elastically connected to the valve body through a limiting spring, a seesaw is provided at the bottom of the protection chamber, the seesaw is rotatably connected to the outer shell, and one end of the seesaw abuts against the valve rod.

[0009] As an alternative solution of the forest fire prevention warning device for mountain forestry according to the present invention, wherein: a fixing plate for blocking the first opening is provided on the upper side of the outer shell, the fixing plate is detachably connected to the outer shell by screws, and a sealing film is provided on the fixing plate;

[0010] A film-breaking rod is provided on one side of the monitor, and a blade is provided on the film-breaking rod.

[0011] As an alternative solution of the forest fire prevention warning device for mountain forestry according to the present invention, wherein: a sealing mechanism is provided on the upper side of the outer shell, and the sealing mechanism includes a movable plate, the movable plate is slidably connected to the outer shell, an inclined surface is provided at one end of the movable plate, and the other end of the movable plate is conical, auxiliary plates are symmetrically provided on the cover plate, and the auxiliary plates are elastically connected to the cover plate through a return spring.

[0012] As an alternative solution of the forest fire prevention warning device for mountain forestry according to the present invention, wherein: a storage cavity for storing the water storage bag is provided inside the outer shell, and a second opening for the protruding part to extend out is provided at the top of the storage cavity, the protruding part is of a hollow structure, and one end of the protruding part is communicated with the water storage bag.

[0013] As an alternative solution of the forest fire prevention warning device for mountain forestry according to the present invention, wherein: an adjusting plate is provided at the lower end of the storage cavity, and the adjusting plate is elastically connected to the storage cavity through a support spring, and a top rod is provided at the upper end of the adjusting plate.

[0014] As an optional solution of the mountain forestry forest fire warning device described in the present invention, the camera unit also includes a connecting seat, which is rotatably connected to the support rod, and a cross bar is provided on the connecting seat, the monitor is installed on the cross bar, the cover plate is detachably connected to the cross bar by bolts, and the support rod is provided with a driving motor for driving the connecting seat to rotate.

[0015] As an optional solution of the mountain forestry forest fire warning device described in the present invention, the control unit also includes a protective shell, a GPRS wireless terminal is arranged in the protective shell, and a temperature and humidity sensor is arranged on the outside of the protective shell, the PLC controller is located in the protective shell, the data access end of the PLC controller is connected with the temperature and humidity sensor and the data output end of the monitoring instrument by wires, and the data output end of the PLC controller is connected with the signal receiving end of the GPRS wireless terminal by wires.

[0016] The present invention has the following beneficial effects:

[0017] 1. A forest fire warning device for mountain forestry is provided, by setting a support rod, on which a cross bar for installing equipment is provided, and correspondingly, a protective mechanism buried underground is also provided on one side of the support rod, the support rod is rotatably connected to the base, and a baffle for limiting the support rod is provided on the base, and the support rod only needs to be pulled out, and the support rod will tilt according to a preset angle, when a fire occurs, it is only necessary to first adjust the position of the cross bar to make it face the direction of the shell, and then pull out the baffle, the support rod tilts, and the cross bar enters the shell under the drive of the support rod, and the cover plate on the cross bar will cover the first opening on the top of the protection room, so that the shell buried underground can play a protective role for the equipment on the cross bar in the event of a fire.

[0018] 2. This kind of forest fire warning device for mountain forestry is equipped with an outer shell with a water storage bag. Correspondingly, a water volume regulating mechanism is also arranged in the outer shell, which includes an end cover and a sliding block. The sliding block is slidably connected to the outer shell. When the cross bar enters the outer shell, the device on the cross bar will conflict with the inclined surface on the sliding block, thereby pushing the sliding block to move. The sliding block can destroy the end cover by a cutting knife during the movement. When the end cover is destroyed, the water in the water storage bag will enter the protective room, thereby having an effect of cooling the equipment, greatly improving the protective effect of the protective mechanism.

[0019] 3. The forest fire prevention early warning device for mountain forestry is provided with a cover plate with a secondary plate. Correspondingly, a movable plate is provided on the outer shell, and an adjusting plate for adjusting the movable plate is also provided on the lower side of the outer shell. The position of the adjusting plate can be adjusted through a water storage bag. When the weight of the water storage bag is large, it will press the adjusting plate downward. As the water is discharged, the weight of the water storage bag becomes lighter. At this time, the adjusting plate will move upward under the push of the support spring. A push rod is provided on the adjusting plate, and the push rod moves synchronously with the adjusting plate. Under the push of the push rod, the movable plate slides out of the outer shell. During this process, the end of the movable plate with a conical tip is inserted into the gap between the two secondary plates. Under the push of the movable plate, the secondary plate overcomes the resistance of the return spring and moves until the secondary plate abuts against the protrusions on both sides of the outer shell. In this way, the gap between the cover plate and the outer shell can be sealed from multiple angles through the movable plate and the secondary plate, further improving the sealing effect of the cover plate on the protection chamber. Description of the Drawings

[0020] Figure 1 Schematic structural diagram of the support rod of the present invention.

[0021] Figure 2 Schematic relative position structural diagram of the support rod and the protection mechanism of the present invention.

[0022] Figure 3 Schematic structural diagram of the protection mechanism of the present invention.

[0023] Figure 4 Schematic internal structure diagram of the outer shell of the present invention.

[0024] Figure 5 Of the present invention Figure 4 Enlarged schematic diagram of the structure at B in

[0025] Figure 6 Of the present invention Figure 1 Enlarged schematic diagram of the structure at A in

[0026] Figure 7 Schematic internal structure diagram of the cover plate of the present invention.

[0027] Figure 8 Schematic internal structure diagram of the protective shell of the present invention.

[0028] Figure 9 Schematic structural diagram of the water volume adjustment mechanism in Embodiment 3 of the present invention.

[0029] In the figure: 1. support rod; 2. monitor; 3. PLC controller; 4. shell; 401. protection chamber; 402. first opening; 403. storage chamber; 404. second opening; 5. base; 6. baffle; 7. electric push rod; 8. cover plate; 801. sub-plate; 802. rebound spring; 9. water storage bag; 901. joint; 902. protrusion; 10. end cover; 11. sliding block; 12. cutting knife; 13. valve body; 14. valve stem; 15. limit spring; 16. rocker; 17. fixed plate; 18. sealing film; 19. membrane breaking rod; 20. blade; 21. movable plate; 22. adjustment plate; 23. push rod; 24. connecting seat; 25. cross bar; 26. driving motor; 27. protective shell; 28. GPRS wireless terminal; 29. temperature and humidity sensor; 30. support spring. DETAILED DESCRIPTION

[0030] 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.

[0031] For example, see Figures 1 to 9 A forest fire early warning device for mountain forestry includes a support rod 1, a camera unit and a control unit are arranged on the support rod 1, the camera unit includes a monitor 2, the control unit includes a PLC controller 3, a protection mechanism is arranged on one side of the support rod 1, and the protection mechanism includes a shell 4, a protection chamber 401 is arranged in the shell 4, and a first opening 402 is arranged on the top of the protection chamber 401;

[0032] A base 5 is provided at the bottom of the support rod 1, and the support rod 1 and the base 5 are rotatably connected. A baffle 6 is slidably connected to the base 5, and an electric push rod 7 for adjusting the position of the baffle 6 is provided on one side of the base 5. A cover plate 8 is provided on the support rod 1.

[0033] The camera unit also includes a connecting seat 24, which is rotatably connected to the support rod 1, and a cross bar 25 is provided on the connecting seat 24. The monitor 2 is installed on the cross bar 25. The cover plate 8 is detachably connected to the cross bar 25 by bolts. The support rod 1 is provided with a driving motor 26 for driving the connecting seat 24 to rotate.

[0034] The control unit further includes a protective housing 27, inside which there is a GPRS wireless terminal 28, and outside the protective housing 27 there is a temperature and humidity sensor 29. The PLC controller 3 is located inside the protective housing 27. The data access end of the PLC controller 3 is electrically connected to the data output ends of the temperature and humidity sensor 29 and the monitor 2, and the data output end of the PLC controller 3 is electrically connected to the signal receiving end of the GPRS wireless terminal 28.

[0035] In this application, by providing a support rod 1 with adjustable angle, a camera unit, and a control unit, there is a cross bar 25 on the support rod 1, and the camera unit and the control unit are both installed on the cross bar 25. When a fire occurs, the support rod 1 flips, and at this time, the end of the support rod 1 with the cross bar 25 faces the ground and tilts. Subsequently, the cross bar 25 is inserted into the protective chamber 401 on the outer shell 4. During normal use, the outer shell 4 can be completely or semi-buried in the soil. In this way, during a fire, the outer shell 4 with the protective chamber 401 can play a role in protecting the equipment on the cross bar 25.

[0036] Specifically, at the base 5 there is a baffle 6 for limiting the support rod 1. Just pull out the baffle 6, and the support rod 1 can tilt at a predetermined angle. The camera unit includes a monitor 2. The monitor 2 used in this application is a hemispherical infrared thermal imager, and the monitor 2 itself has a self-rotation function. At the same time, the cross bar 25 for installing the monitor 2 can also rotate driven by the connecting seat 24, with few monitoring dead angles. The control unit includes a PLC controller 3 and a GPRS wireless terminal 28. The surrounding area of the support rod 1 is video-captured by the monitor 2, and then the PLC controller 3 sends the captured video information to the upper computer through the GPRS wireless terminal 28 to achieve the function of remote monitoring and early warning. The temperature and humidity sensor 29 can monitor the ambient temperature and humidity around the support rod 1. When a fire occurs around the support rod 1, the operator remotely controls the electric push rod 7 and the drive motor 26 through the PLC controller 3 and the GPRS wireless terminal 28, and adjusts the position of the cross bar 25 through the drive motor 26 so that it can enter the protective chamber 401 after the support rod 1 tilts. Driven by the electric push rod 7, the baffle 6 moves. After the baffle 6 loses its blocking effect, the support rod 1 tilts, and then the cross bar 25 enters the protective chamber 401. To improve the protection effect, a cover plate 8 that fits the first opening 402 is also provided on the support rod 1. When the end of the cross bar 25 with equipment enters the protective chamber 401, the first opening 402 can be covered by the cover plate 8.

[0037] Embodiment 2. This embodiment is an explanatory description based on Embodiment 1. Specifically, please refer to Figures 1 to 9, a water storage bag 9 is provided on one side of the protective chamber 401. A connector 901 for communicating with the protective chamber 401 is provided on the lower side of the water storage bag 9, and a protruding portion 902 is provided at the upper end of the water storage bag 9. A water volume adjusting mechanism for adjusting the connector 901 is provided in the protective chamber 401.

[0038] The water volume adjusting mechanism includes an end cover 10 installed on the connector 901. A sliding block 11 is provided on one side of the end cover 10. The sliding block 11 is slidably connected to the outer shell 4, and a cutter 12 is provided at one end of the sliding block 11 close to the end cover 10. An inclined surface is provided at the other end of the sliding block 11.

[0039] In order to further improve the protection effect, the present application also provides a water storage bag 9 on one side of the protective chamber 401. Correspondingly, a water volume adjusting mechanism is also provided in the outer shell 4. The connector 901 can be adjusted through the water volume adjusting mechanism, so that the water in the water storage bag 9 is put into the protective chamber 401, so that the equipment on the cross bar 25 can be immersed in water, and the equipment can be better protected in case of a fire. Specifically, the water volume adjusting mechanism includes an end cover 10. A sliding block 11 is provided on one side of the end cover 10. After the cross bar 25 enters the outer shell 4, the film-breaking rod 19 on the cross bar 25 will abut against the inclined surface on the sliding block 11. Driven by the film-breaking rod 19, the sliding block 11 drives the cutter 12 to move. The end cover 10 can be damaged by the cutter 12. When the end cover 10 is damaged, the water in the water storage bag 9 will enter the protective chamber 401, thereby achieving an effect of cooling the equipment and greatly improving the protection effect of the protection mechanism.

[0040] It should be noted that in order to prevent the equipment at the camera unit and the control unit from being damaged due to water ingress, waterproof treatment needs to be carried out on the equipment at the camera unit and the control unit.

[0041] Embodiment 3, this embodiment is an explanatory description based on Embodiment 1. Specifically, please refer to Figure 9 , this embodiment also discloses another water volume adjusting mechanism, which includes a valve body 13 installed on the connector 901. A valve rod 14 is provided in the valve body 13, and the valve rod 14 is elastically connected to the valve body 13 through a limit spring 15. A rocker 16 is provided at the bottom of the protective chamber 401. The rocker 16 is rotatably connected to the outer shell 4, and one end of the rocker 16 abuts against the valve rod 14.

[0042] The valve rod 14 on the valve body 13 is connected to the valve body 13 through a limit spring 15. In the normal state, the valve rod 14 is in a closed state. When the cross bar 25 enters the protective chamber 401, the film-breaking rod 19 on the cross bar 25 abuts against the rocker 16, and then the rocker 16 deflects, and the other end thereof abuts against the valve rod 14. Driven by the rocker 16, the valve rod 14 rises. At this time, the valve body 13 is in an open state, and the water in the water storage bag 9 enters the protective chamber 401.

[0043] Embodiment 4. This embodiment is an explanatory description based on Embodiment 1. Specifically, please refer to Figures 1 to 9 , a fixing plate 17 for blocking the first opening 402 is provided on the upper side of the outer shell 4. The fixing plate 17 is detachably connected to the outer shell 4 by screws, and a sealing film 18 is provided on the fixing plate 17;

[0044] A film-breaking rod 19 is provided on one side of the monitor 2. A blade 20 is provided on the film-breaking rod 19. The film-breaking rod 19 is fixed at one end of the cross bar 25.

[0045] A sealing mechanism is provided on the upper side of the outer shell 4. The sealing mechanism includes a movable plate 21. The movable plate 21 is slidably connected to the outer shell 4. One end of the movable plate 21 is provided with an inclined surface, and the other end of the movable plate 21 is conical. Auxiliary plates 801 are symmetrically provided on the cover plate 8, and the auxiliary plates 801 are elastically connected to the cover plate 8 by return springs 802.

[0046] A storage cavity 403 for storing the water storage bag 9 is provided inside the outer shell 4. A second opening 404 for the protruding portion 902 to protrude is provided at the top of the storage cavity 403. The protruding portion 902 is a hollow structure, and one end of the protruding portion 902 is communicated with the water storage bag 9.

[0047] An adjusting plate 22 is provided at the lower end of the storage cavity 403. The adjusting plate 22 is elastically connected to the storage cavity 403 by a support spring 30. A top rod 23 is provided at the upper end of the adjusting plate 22.

[0048] In order to prevent sundries such as fallen leaves and dust from entering the protection chamber 401 during daily use, a fixing plate 17 is further provided at the outer shell 4 in this technical solution. The fixing plate 17 is detachable, and a sealing film 18 is provided on the fixing plate 17. The first opening 402 can be sealed by the sealing film 18. Correspondingly, a film-breaking rod 19 is provided on the cross bar 25, and a blade 20 is provided on the film-breaking rod 19. During the tilting process of the cross bar 25, the sealing film 18 can be cut by the blade 20, so that the cross bar 25 and the equipment thereon can easily enter the protection chamber 401. In this technical solution, after the cross bar 25 and other equipment enter the protection chamber 401, the sealing film 18 will not be completely damaged. Therefore, the sealing film 18 in this solution can not only prevent sundries from entering the protection chamber 401, but also cooperate with the cover plate 8 to strengthen the sealing of the protection chamber 401 after the cross bar 25 enters the protection chamber 401.

[0049] When the support rod 1 deflects, its end will contact the outer shell 4. To reduce the impact on the equipment on the cross bar 25, the present application improves the outer shell 4 and the water storage bladder 9. A protruding portion 902 is provided on the water storage bladder 9. Correspondingly, a second opening 404 for the protruding portion 902 to extend out is provided at the top of the storage cavity 403. That is to say, usually the protruding portion 902 protrudes from the outer shell 4. In this way, when the support rod 1 topples, its end will contact the protruding portion 902, and the protruding portion 902 also stores water. In this way, the protruding portion 902 can play a buffering role in the process of the support rod 1 toppling, reducing the impact of the impact force on the equipment. It should be noted that the existence of the protruding portion 902 will not affect the linkage between the membrane-breaking rod 19 and the water volume adjusting mechanism. After the water volume adjusting mechanism is opened, the water in the water storage bladder 9 enters the protection chamber 401, and the water in the protruding portion 902 flows out. Under the pressure of the support rod 1, it will gradually shrink into the outer shell 4. Finally, the support rod 1 will reach the preset position. At this time, the cover plate 8 can play a sealing effect on the protection chamber 401;

[0050] To reduce the probability of collision between the cross bar 25 and the outer shell 4 during the toppling process, the first opening 402 is relatively large with respect to the equipment on the cross bar 25. However, this will lead to a poor sealing effect of the cover plate 8 on the first opening 402. To solve the above problems, the present technical solution improves the cover plate 8. A movable auxiliary plate 801 is provided on the cover plate 8. The auxiliary plate 801 is elastically connected to the cover plate 8 through a return spring 802, and one end of the auxiliary plate 801 protrudes from the cover plate 8. Correspondingly, a movable plate 21 is provided at the outer shell 4, and an adjusting plate 22 for adjusting the movable plate 21 is also provided at the lower side of the outer shell 4. The adjusting plate 22 is elastically connected to the storage cavity 403 through a support spring 30. The water storage bladder 9 is placed on the adjusting plate 22. When the water storage bladder 9 is full of water, its weight is relatively large. Under the action of the water storage bladder 9, the adjusting plate 22 is located at a low position. At this time, the support spring 30 is in a state of storing energy. As the water is discharged, the weight of the water storage bladder 9 becomes lighter and lighter. At this time, the adjusting plate 22 will move upward under the push of the support spring 30. A push rod 23 is provided on the adjusting plate 22. One end of the push rod 23 abuts against the inclined end of the movable plate 21. Under the push of the push rod 23, the movable plate 21 slides out of the outer shell 4. During this process, the end with a conical tip of the movable plate 21 is inserted into the gap between the two auxiliary plates 801. Under the push of the movable plate 21, the auxiliary plate 801 overcomes the resistance of the return spring 802 and moves until the auxiliary plate 801 abuts against the protrusions on both sides of the outer shell 4. In this way, the movable plate 21 and the auxiliary plate 801 can seal the gap between the cover plate 8 and the outer shell 4 from multiple angles, further improving the sealing effect of the cover plate 8 on the protection chamber 401, and indirectly improving the protection effect of the outer shell 4 on the equipment in the protection chamber 401;

[0051] It should be noted that in order to ensure the stability of the movable plate 21, a spring can be provided between the movable plate 21 and the housing 4 so that the position of the movable plate 21 will not move randomly during use.

[0052] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0053] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A forest fire prevention warning device for mountain forestry, comprising a support rod, wherein a camera unit and a control unit are provided on the support rod, the camera unit includes a monitor, and the control unit includes a PLC controller, characterized in that: One side of the support rod is provided with a protection mechanism, and the protection mechanism includes a housing. A protection chamber is arranged inside the housing, and a first opening is arranged at the top of the protection chamber; The bottom of the support rod is provided with a base, and the support rod is rotatably connected to the base. A baffle is slidably connected to the base, and an electric push rod for adjusting the position of the baffle is arranged on one side of the base. A cover plate is arranged on the support rod; A water storage bag is arranged on one side of the protection chamber. A connector for communicating with the protection chamber is arranged on the lower side of the water storage bag, and a protruding part is arranged at the upper end of the water storage bag. A water volume adjusting mechanism for adjusting the connector is arranged inside the protection chamber; The camera unit further includes a connecting seat, and a driving motor for driving the connecting seat to rotate is arranged on the support rod; When a fire breaks out around the support rod, the electric push rod and the driving motor are remotely controlled so that the camera unit can enter the protection chamber after the support rod topples; The water volume adjusting mechanism includes an end cover installed on the connector. A sliding block is arranged on one side of the end cover. The sliding block is slidably connected to the housing. A cutting knife is arranged at one end of the sliding block close to the end cover, and an inclined surface is arranged at the other end of the sliding block; Or the water volume adjusting mechanism includes a valve body installed on the connector. A valve rod is arranged inside the valve body, and the valve rod is elastically connected to the valve body through a limit spring. A seesaw is arranged at the bottom of the protection chamber. The seesaw is rotatably connected to the housing, and one end of the seesaw abuts against the valve rod.

2. The forest fire prevention warning device for mountain forestry according to claim 1, characterized in that: A fixing plate for blocking the first opening is arranged on the upper side of the housing. The fixing plate is detachably connected to the housing by screws, and a sealing film is arranged on the fixing plate; A film-breaking rod is arranged on one side of the monitor, and a blade is arranged on the film-breaking rod; 3. The forest fire prevention early warning device for mountain forestry according to claim 1, characterized in that: A sealing mechanism is arranged on the upper side of the housing. The sealing mechanism includes a movable plate. The movable plate is slidably connected to the housing. One end of the movable plate is provided with an inclined surface, and the other end of the movable plate is conical. Auxiliary plates are symmetrically arranged on the cover plate, and the auxiliary plates are elastically connected to the cover plate through a return spring; 4. An early warning device for forest fire prevention in mountain forestry according to claim 3, characterized in that: A storage cavity for storing the water storage bag is arranged inside the housing. A second opening for the protruding part to extend out is arranged at the top of the storage cavity. The protruding part is of a hollow structure, and one end of the protruding part is communicated with the water storage bag; 5. An early warning device for forest fire prevention in mountain forestry according to claim 4, characterized in that: An adjusting plate is arranged at the lower end of the storage cavity. The adjusting plate is elastically connected to the storage cavity through a support spring, and a top rod is arranged at the upper end of the adjusting plate; 6. The forest fire prevention warning device for mountain forestry according to claim 1, wherein: The connecting seat is rotatably connected to the support rod, and a cross bar is arranged on the connecting seat. The monitor is installed on the cross bar, and the cover plate is detachably connected to the cross bar by bolts; 7. The forest fire prevention early warning device for mountain forestry according to claim 1, wherein: The control unit further includes a protective shell. A GPRS wireless terminal is arranged inside the protective shell, and a temperature and humidity sensor is arranged on the outer side of the protective shell. The PLC controller is located inside the protective shell. The data access end of the PLC controller is electrically connected to the data output ends of the temperature and humidity sensor and the monitor, and the data output end of the PLC controller is electrically connected to the signal receiving end of the GPRS wireless terminal.

Images