Forest fire prevention early warning equipment

Abstract

The utility model provides forest fire prevention early warning equipment which comprises an infrared thermal imager, a support is installed at the bottom of the infrared thermal imager, the support is of an L-shaped structure, an end cover is arranged on the outer side of a lens part of the infrared thermal imager, two lens covers are installed on the face, away from the infrared thermal imager, of the end cover, and the two lens covers are connected with the infrared thermal imager. Bosses are installed on the two parallel side faces of the infrared thermal imager, the end cover is connected with the bosses through screws, air supply hoses communicated with the compressed air tank through valves are installed at the four corners of the face, away from the lens cover, of the end cover, and two vent holes communicated with the air supply hoses are formed in the lens cover. A shielding plate used for shielding the section, close to the infrared thermal imager, of the air supply hose is installed on the face, away from the infrared thermal imager, of the boss. The device has the advantage that sunlight shielding can be carried out on the ends, close to the infrared thermal imager, of the multiple air supply hoses which are in a dispersed state and are not suitable for being wound by the sun protection belt.

Description

A forest fire early warning device Technical Field

[0001] This utility model is a forest fire early warning device, belonging to the field of forest fire prevention. Background Technology

[0002] Infrared thermal imagers are commonly used in forest fire early warning systems. With their unique advantages of "non-contact temperature measurement, all-weather monitoring, and thermal anomaly identification," they have become a key technological means for "early detection and early response" of forest fires. In forest environments, large diurnal temperature differences and high humidity levels easily cause condensation on the lenses of infrared thermal imagers. Compressed air purging is a common and rapid method for removing moisture. This is achieved by installing a lens cover with ventilation holes at the lens and connecting the lens cover to the compressed air pipe using a flexible air supply hose. To improve the purging effect, multiple ventilation holes are machined inside the lens cover, requiring each ventilation hole to be connected to a corresponding flexible air supply hose. This results in the multiple hoses being dispersed near the instrument's end. This dispersed layout makes it difficult to wrap the hoses with sun protection tape, and under prolonged direct sunlight, the aging rate of the hose ends is significantly accelerated (e.g., the aging and cracking cycle of rubber hoses is shortened from 5 years to 2 years). This not only affects the normal use of the equipment but also increases maintenance costs and frequency. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a forest fire early warning device to solve the problems mentioned in the background technology. This utility model can block sunlight from the ends of multiple dispersed air supply hoses near the infrared thermal imager that are not suitable for wrapping with sun protection tape.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a forest fire early warning device, including an infrared thermal imager, a support mounted on the bottom of the infrared thermal imager, the support having an L-shaped structure, an end cover provided on the outer side of the lens of the infrared thermal imager, two lens covers mounted on the side of the end cover facing away from the infrared thermal imager, bosses mounted on two parallel sides of the infrared thermal imager, the end cover being connected to the bosses by screws, and air supply hoses connected to compressed air tanks via valves installed at the four corners of the side of the end cover facing away from the lens covers, two ventilation holes communicating with the air supply hoses being opened inside the lens covers, and a shielding plate for blocking the section of the air supply hose close to the infrared thermal imager being installed on the side of the boss facing away from the infrared thermal imager.

[0005] Furthermore, the shield is an L-shaped structure, and there is a gap between the vertical part of the shield and the side of the infrared thermal imager. The side of the shield facing the infrared thermal imager is evenly equipped with multiple clips for securing the air supply hose.

[0006] Furthermore, an insert plate is installed on the vertical part of the shield near the end cover. The side of the boss facing away from the infrared thermal imager has a slot that mates with the insert plate. The side of the end cover facing away from the boss has two countersunk holes. The side of the boss facing the end cover has two round holes that are aligned with the countersunk holes. The round holes communicate with the slot. The side of the insert plate facing the round holes has a screw hole that mates with a screw. One end of the screw passes through the countersunk hole and the round hole and is threaded into the screw hole.

[0007] Furthermore, the upper surface of the horizontal part of the support is provided with four rubber gimbals, and the area of ​​the horizontal part of the support covered by the rubber gimbals has vertical holes. A connecting bolt is inserted into the vertical holes, and one end of the connecting bolt passes through the rubber gimbal and is threadedly connected to the infrared thermal imager.

[0008] Furthermore, a stiffening plate is installed on the lower surface of the horizontal part of the support, and the stiffening plate is connected and fixed to the vertical part of the support.

[0009] Furthermore, the upper surface of the horizontal part of the support is provided with a plurality of elongated oval openings, and one side of the vertical part of the support is provided with a plurality of fixing holes.

[0010] Furthermore, two through-holes are provided on one side of the stiffening plate, and the two through-holes are arranged perpendicularly and staggered to each other.

[0011] The beneficial effects of this utility model are:

[0012] 1. Deploy infrared thermal imagers at the required locations in the forest. Based on Planck's law of radiation, infrared thermal imagers collect the infrared energy radiated by objects in the forest scene through an optical system. This energy is converted into electrical signals by a focal plane detector, and then reconstructed through signal processing and algorithms to generate thermal images that reflect the temperature distribution on the surface of objects, providing data support for forest fire prevention and early warning. Open the shut-off valve connecting the air supply hose and the compressed air tank, so that compressed air is blown onto the lens through the air supply hose and vent, achieving rapid removal of water vapor adhering to the lens.

[0013] 2. The shield adopts an L-shaped structure, and its vertical part forms a shielding space with the side of the infrared thermal imager, which can block sunlight from entering the multiple dispersed air supply hoses near the infrared thermal imager. The ends of the air supply hoses should not be wrapped with sun protection tape, which reduces the aging speed of the air supply hoses and reduces the maintenance frequency.

[0014] 3. Secure the end of the air supply hose closest to the infrared thermal imager into multiple clips and arrange the air supply hose in an "S" shape to limit the end of the air supply hose and prevent the connection between the air supply hose and the end cover from being separated due to stress during the pulling process.

[0015] 4. Insert the insert plate on the shield into the slot on the protrusion, and then screw the screw through the countersunk hole and the round hole into the screw hole. This allows the screw to simultaneously limit the relative positions of the shield, end cover and infrared thermal imager, reducing the number of screws used. Also, when the screw hole is damaged, the shield and the structure formed by the insert plate can be replaced separately, without the need to repair or replace the infrared thermal imager. Attached Figure Description

[0016] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0017] Figure 1 is a structural schematic diagram of a forest fire early warning device according to this utility model;

[0018] Figure 2 is a schematic diagram of the assembly of the support and the infrared thermal imager in a forest fire early warning device of this utility model.

[0019] Figure 3 is a schematic diagram of the assembly of the insert plate, buckle and shield plate in a forest fire early warning device of this utility model;

[0020] Figure 4 is a schematic diagram of the assembly of the stiffening plate and the support in a forest fire early warning device of this utility model;

[0021] In the diagram: 1-Infrared thermal imager, 2-Shielding plate, 3-Support, 4-Air supply hose, 5-Fixing hole, 6-Pipe through port, 7-Firming plate, 8-Vertical hole, 9-Connecting bolt, 10-Rubber pan-tilt head, 11-Ventilation hole, 12-Lens cover, 13-End cover, 14-Screw, 15-Round hole, 16-Slot, 17-Boss, 18-Oblong opening, 19-Insert plate, 20-Screw hole, 21-Snap fastener. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] Please refer to Figures 1, 2, and 4. This utility model provides a technical solution: a forest fire early warning device, including an infrared thermal imager 1. A support 3 is installed at the bottom of the infrared thermal imager 1. The support 3 has an L-shaped structure. Four rubber pan-tilt units 10 are provided on the upper surface of the horizontal part of the support 3. Vertical holes 8 are formed in the area of ​​the horizontal part of the support 3 covered by the rubber pan-tilt units 10. Connecting bolts 9 are inserted into the vertical holes 8. One end of the connecting bolt 9 passes through the rubber pan-tilt unit 10 and is threadedly connected to the infrared thermal imager 1. The rubber pan-tilt units 10 serve as a connecting... The infrared thermal imager 1 and the support 3 are connected. The lower surface of the horizontal part of the support 3 is equipped with a stiffening plate 7. The stiffening plate 7 is connected and fixed to the vertical part of the support 3. Multiple elongated oval openings 18 are evenly opened on the upper surface of the horizontal part of the support 3, which helps to reduce the weight of the support 3. Multiple fixing holes 5 are evenly opened on one side of the vertical part of the support 3, which makes it easy to install the support 3 at the required position. Two through-holes 6 are opened on one side of the stiffening plate 7. The two through-holes 6 are arranged perpendicularly and staggered to each other. The design of the through-holes 6 makes it easy for the air supply hose 4 to pass through the stiffening plate 7.

[0024] Referring to Figures 1-3, an end cover 13 is provided on the outer side of the lens of the infrared thermal imager 1. Two lens covers 12 are installed on the side of the end cover 13 facing away from the infrared thermal imager 1. A boss 17 is installed on each of the two parallel sides of the infrared thermal imager 1. The end cover 13 is connected to the boss 17 by screws 14. Air supply hoses 4, connected to compressed air tanks via valves, are installed at the four corners of the side of the end cover 13 facing away from the lens covers 12. Two vent holes 11, communicating with the air supply hoses 4, are opened inside the lens covers 12. 1. Deployed at the required location in the forest, the infrared thermal imager 1, based on Planck's radiation law, collects the infrared energy radiated by objects in the forest scene through an optical system. This energy is converted into an electrical signal by a focal plane detector, and then reconstructed through signal processing and algorithms to generate a thermal image reflecting the temperature distribution on the surface of the object, providing data support for forest fire prevention and early warning. The shut-off valve connected between the air supply hose 4 and the compressed air tank is opened, so that compressed air is blown onto the lens through the air supply hose 4 and the vent 11, thereby quickly removing the water vapor adhering to the lens.

[0025] Referring to Figures 1-3, a shielding plate 2 is installed on the side of the boss 17 facing away from the infrared thermal imager 1 to shield the section of the air supply hose 4 near the infrared thermal imager 1. The shielding plate 2 has an L-shaped structure, and there is a gap between the vertical part of the shielding plate 2 and the side of the infrared thermal imager 1. Multiple clips 21 for securing the air supply hose 4 are evenly installed on the side of the shielding plate 2 facing the infrared thermal imager 1. The shielding plate 2 adopts an L-shaped structure, and its vertical part forms a shielding space with the side of the infrared thermal imager 1, which can block sunlight from reaching the ends of the multiple dispersed air supply hoses 4 near the infrared thermal imager 1 that are not suitable for wrapping with sun protection tape, thereby reducing the aging speed of the air supply hose 4 and reducing the maintenance frequency. The end of the air supply hose 4 near the infrared thermal imager 1 is secured in multiple clips 21, and the air supply hose 4 is arranged in an "S" shape, thereby limiting the end of the air supply hose 4 and preventing the connection between the air supply hose 4 and the end cover 13 from being separated due to force during the pulling process.

[0026] Referring to Figures 1-3, a plate 19 is installed on the vertical part of the shield 2 near the end cover 13. A slot 16 is provided on the side of the boss 17 facing away from the infrared thermal imager 1, which mates with the plate 19. Two countersunk holes are provided on the side of the end cover 13 facing away from the boss 17. Two round holes 15 are provided on the side of the boss 17 facing the end cover 13, aligned with the countersunk holes. The round holes 15 communicate with the slot 16. A screw hole 20 is provided on the side of the plate 19 facing the round holes 15, which mates with the screw 14. One end of the screw 14 passes through... The countersunk hole and round hole 15 are threaded into the screw hole 20, so that the insert plate 19 on the shield plate 2 is inserted into the slot 16 on the protrusion. Then, the screw 14 is screwed into the screw hole 20 after passing through the countersunk hole and round hole 15. This allows the screw 14 to simultaneously restrict the relative positions of the shield plate 2, end cover 13 and infrared thermal imager 1, reducing the number of screws used. At the same time, when the screw hole 20 is damaged, the structure formed by the shield plate 2 and the insert plate 19 can be replaced separately, without the need to repair or replace the infrared thermal imager 1.

[0027] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A forest fire prevention warning device comprising an infrared thermal imager (1), characterized in that: The infrared thermal imager (1) is equipped with a support (3) at the bottom. The support (3) is an L-shaped structure. An end cover (13) is provided on the outside of the lens part of the infrared thermal imager (1). Two lens covers (12) are installed on the side of the end cover (13) away from the infrared thermal imager (1). A boss (17) is installed on each of the two parallel sides of the infrared thermal imager (1). The end cover (13) is connected to the boss (17) by screws (14). At the four corners of the side of the end cover (13) away from the lens cover (12), a gas supply hose (4) is installed and connected to a compressed gas tank through a valve. Two ventilation holes (11) are opened in the lens cover (12) and communicate with the gas supply hose (4). A shielding plate (2) is installed on the side of the boss (17) away from the infrared thermal imager (1) to block the gas supply hose (4) from approaching the section of the infrared thermal imager (1).

2. The forest fire prevention warning device according to claim 1, characterized in that: The shield (2) has an L-shaped structure. There is a gap between the vertical part of the shield (2) and the side of the infrared thermal imager (1). Multiple buckles (21) for clamping the air supply hose (4) are evenly installed on the side of the shield (2) facing the infrared thermal imager (1).

3. The forest fire prevention warning device according to claim 1, characterized in that: A plug plate (19) is installed on the side of the vertical part of the shield (2) near the end cover (13). The boss (17) has a slot (16) that matches the plug plate (19) on the side away from the infrared thermal imager (1). The end cover (13) has two countersunk holes on the side away from the boss (17). The boss (17) has two round holes (15) that are aligned with the countersunk holes on the side facing the end cover (13). The round holes (15) are connected to the slot (16). The plug plate (19) has a screw hole (20) that matches the screw (14) on the side facing the round holes (15). One end of the screw (14) passes through the countersunk hole and the round hole (15) and is threaded into the screw hole (20).

4. A forest fire early warning device according to claim 1, characterized in that: The upper surface of the horizontal part of the support (3) is provided with four rubber gimbals (10). The area of ​​the horizontal part of the support (3) covered by the rubber gimbals (10) has vertical holes (8). A connecting bolt (9) is inserted into the vertical hole (8). One end of the connecting bolt (9) passes through the rubber gimbal (10) and is threadedly connected to the infrared thermal imager (1).

5. The forest fire prevention warning device according to claim 1, characterized in that: A stiffening plate (7) is installed on the lower surface of the horizontal part of the support (3), and the stiffening plate (7) is connected and fixed to the vertical part of the support (3).

6. The forest fire prevention warning device according to claim 5, characterized in that: The upper surface of the horizontal part of the support (3) is provided with a plurality of elongated openings (18), and the side of the vertical part of the support (3) is provided with a plurality of fixing holes (5).

7. The forest fire prevention warning device according to claim 5, characterized in that: The stiffener (7) has two through-holes (6) on one side, and the two through-holes (6) are arranged perpendicularly and staggered to each other.

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