CN210574172U - Formula of can jettisoning conflagration early warning sensing device - Google Patents
Formula of can jettisoning conflagration early warning sensing device Download PDFInfo
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- CN210574172U CN210574172U CN201921354919.5U CN201921354919U CN210574172U CN 210574172 U CN210574172 U CN 210574172U CN 201921354919 U CN201921354919 U CN 201921354919U CN 210574172 U CN210574172 U CN 210574172U
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Abstract
The utility model provides a throwable fire early warning sensing device, which comprises a shell; install in the casing: a circuit having a wireless alarm module; a trigger disposed at a gap from the circuit, and an elastic device for applying a force toward the gap to the trigger; at least part of the space in the gap is provided with a heat sensitive material for supporting the gap; the heat sensitive material is changed from a solid state to a liquid state or a gaseous state when the temperature is higher than a certain temperature, so that the trigger is contacted with the circuit to conduct the circuit with the wireless alarm module. The utility model provides a conflagration early warning sensing device can artifical entering forest zone stationing or to complicated mountain area with the helicopter fixed point shed arrange, automatic start when meetting the conflagration realizes the early warning, effectively compensaties the early warning blind area, and simple structure, and the cost is lower, simple to operate.
Description
Technical Field
The invention relates to the technical field of fire early warning, in particular to a throwable fire early warning sensing device.
Background
At present, forest fires are one of the worldwide important forestry disasters, and the forest fires are natural disasters which have strong burst property, great destructiveness and difficult disposal and rescue. The forest fire prevention work is an important component of the Chinese disaster prevention and reduction work, is important content of the construction of the national public emergency system, is an important guarantee of social stability and the people's living and entertainment industry, is a great office for accelerating the development of the forest industry, strengthening the foundation and premise of ecological construction, and stably developing the concerned forest resources and ecological safety, the concerned people's life and property safety and the concerned innovation. Simply, forest fire prevention is to prevent occurrence and spread of forest fires, i.e., to prevent and suppress forest fires. With the continuous development of the afforestation industry in China, the fire prevention and disaster prevention work becomes the primary task. The forest fire prevention must implement the policy of 'prevention is the main and the fire is actively suppressed', so that the early discovery is really realized and the early solution is solved.
At present, for forest fire prevention, related technical measures are available:
1. patrol and protect through the aviation, utilize and patrol and protect aircraft or unmanned aerial vehicle and carry out forest fire and survey. Its advantages are wide field of view, high maneuverability and speed, and all-round observation of fire field and its development. But also has disadvantages: the airplane is easy to be limited by weather, for example, the airplane is difficult to take off at night, in windy weather and in cloudy days when the visibility is low, meanwhile, the patrol is limited by air lines and time, the observation range is small, a certain forest area can only be observed once a day, if the observation time is missed, forest fires in the same day can not be observed, the disaster is easy to cause, in addition, the fixed flight cost of the patrol airplane is high, and the expense for renting the airplane is more expensive.
2. The satellite remote sensing is used for detecting forest fire by using polar orbit meteorological satellites, land resource satellites, earth geostationary satellites and low orbit satellites, finding hot spots, monitoring the spreading condition of a fire scene, providing fire scene information in time, making forest fire danger forecast by using a remote sensing means, and estimating the fire passing area by using satellite digital data. The device has wide detection range, fast data collection, continuous data acquisition, dynamic fire change reflection, no influence of terrain conditions on the collected data and true image. However, it has disadvantages, such as low accuracy, requiring a lot of manpower, material resources and financial resources on the ground for verification, and especially in places with inconvenient traffic, fire verification is very important. After the fire reaches a plurality of pixel points which can be distinguished by the satellite, the fire forms a certain scale, and the time from the satellite crossing to the checking notification of the fire fighting team is too long, so that the effects of 'getting early, getting small and getting hit' cannot be achieved, the timeliness is low, and the cost is high.
3. The observation tower intelligent device monitors, and through selecting different mountain peak system high points, establishes the observation tower, sets up imaging device such as long-focus camera or thermal infrared imager on the tower, carries out remote intelligent monitoring, warning to the forest region, has avoided artifically having watched the limitation of observing the condition of a fire to do not receive weather environment factor influence, no matter be daytime or rain fog weather, the dark night homoenergetic normal work. However, this kind of equipment is only suitable for places with low mountain complexity, and for many mountain areas and forest regions in China, the mountain complexity is high, peaks and peaks overlap peaks and peaks, and many valleys or saddle areas are covered by mountains, and if there is no blind spot coverage, the tower building density needs to be increased, and the cost will be increased inevitably. In addition, many mountain areas have rugged roads, even perennial unmanned areas, and steep mountains, so that the equipment is difficult to transport into the tower.
In conclusion, the existing forest fire prevention related technical measures have certain defects and cannot meet various requirements in forest fire prevention.
Disclosure of Invention
In view of the above, the main object of the present invention is to provide a throwable fire alarm sensing device, which can be manually placed in a forest area or thrown and distributed at a fixed point by a helicopter in a complex mountain area, and automatically started when a fire occurs, so as to achieve early warning and effectively compensate an early warning blind area, and the device has a simple structure, a low cost and is convenient to install.
The invention adopts the technical scheme that the throwable fire early warning sensing device comprises a shell; install in the casing:
a circuit having a wireless alarm module;
a trigger disposed at a gap from the circuit, and an elastic device for applying a force toward the gap to the trigger;
at least part of the space in the gap is provided with a heat sensitive material for supporting the gap; the heat sensitive material is changed from a solid state to a liquid state or a gaseous state when the temperature is higher than a certain temperature, so that the trigger is contacted with the circuit to conduct the circuit with the wireless alarm module.
In view of the above, the jettisonable fire early warning sensing device provided by the invention has a simple structure and a small volume, and can be manually placed at forest distribution points or distributed in a fixed-point jettisonable manner by a helicopter in a complex mountain area, the trigger and the wireless warning module in the device are supported and connected by the heat sensitive material at the edge of the trigger under the original state, so that the trigger is isolated from and not contacted with the wireless warning module, when a fire occurs, the heat sensitive material protruding from the edge of the trigger is melted by high temperature, and at the moment, the conductive metal at the bottom of the trigger is contacted with the wireless warning module, so that the wireless warning module is connected and started to send a wireless warning signal to a background monitoring center or a data acquisition station, or directly send a warning signal through an internet-of-things satellite transmission link to finish fire warning, and the background monitoring center or the data acquisition station can also remotely transmit the warning signal through the internet-of-things satellite, and further, remote control or fire extinguishing command sending to a nearby fire center is realized.
The improved structure is characterized in that a heat conduction contact pin extending out of the head end of the shell is mounted at the head end of the shell, a cylindrical heat conduction structure connected with the heat conduction contact pin is arranged in the shell, and at least part of the circuit is coated by the cylindrical heat conduction structure.
By last, the heat conduction contact pin has the effect of heat conduction, can avoid high temperature to produce the damage to the circuit with the leading-in ground of the heat that the high temperature in the casing produced, sets up barreled heat conduction structure in the casing simultaneously, can increase heat conduction area, improves heat conduction efficiency.
In a further improvement, the head end of the shell is conical, the tail end of the shell extends outwards to form an eave, and a cylindrical part is arranged between the head end and the tail end.
By last, the casing adopts the head end toper, and the tail end outwards extends into the shape of eaves, can guarantee when throwing at the high altitude that this conflagration early warning device inserts soil with the mode that the head end is down to accomplish smoothly and arrange.
The heat conducting contact pin, the cylindrical heat conducting structure, the gap, the trigger and the elastic device are sequentially arranged in the shell from the head end to the tail end.
By above, carry out position optimization to the internal structure of casing, under the prerequisite that realizes alarming function, optimize inner structure, perfect the overall arrangement.
In a further improvement, a fixed seat is assembled in the cylindrical heat conducting structure, and the circuit is assembled on the fixed seat.
By last, the fixing base can be fixed the inside circuit of heat conduction structure, prevents to appear not hard up to lead to wireless alarm circuit contact failure.
In a further improvement, a heat insulation gasket is arranged between the circuit and the fixed seat.
Therefore, the heat insulation gasket is used for insulating the circuit and preventing the electronic elements in the circuit from being damaged by high temperature.
In a further improvement, the shell comprises a front section, a middle section and a tail section which are connected with each other in a threaded manner;
the front section of the shell comprises a head end and a partial cylindrical part of the shell;
the middle section of the shell comprises a part of cylindrical part of the shell;
the shell tail section comprises a part of cylindrical part and a tail end of the shell;
part heat conduction contact pin, tube-shape heat conduction structure, clearance, trigger and circuit set up in the casing anterior segment, resilient means set up in the casing middle section.
By last, through adopting the casing of syllogic, be convenient for install inside the casing with each component part, install the back rethread screw thread and twist the three-section casing and connect, both be convenient for install, also be convenient for follow-up dismantlement maintenance when certain part damages.
In further improvement, nano heat-insulating aerogel is arranged between the circuit and the cylindrical heat-conducting structure;
a nano heat-insulating aerogel is arranged between the cylindrical heat-conducting structure and the inner wall of the shell;
and nano heat-insulating aerogel is arranged between the elastic device and the inner wall of the shell.
By last, nanometer thermal-insulated aerogel has the coefficient of heat transfer low, dampproofing fire prevention safety, advantages such as low carbon environmental protection, fills in the structure intermediate layer through adopting nanometer thermal-insulated aerogel, can play thermal-insulated protection's effect, prevents that high temperature from causing the damage to inside module.
The shell is further improved by adopting high-temperature-resistant zirconia ceramic, and the inner wall and the outer wall of the shell are both coated with high-temperature reflective heat-insulating composite ceramic coating;
the heat conducting contact pin and the cylindrical heat conducting structure are made of ceramic materials with high heat conducting coefficients.
The zirconia ceramics has the excellent properties of high melting point and boiling point, high hardness, insulator at normal temperature, conductivity at high temperature and the like, can ensure that the shell is not damaged by high temperature, and can also carry out diffusion transmission on the radio alarm signal at high temperature.
In a further improvement, the wireless alarm module is a radio frequency module, and the elastic device is a spring in a compressed state.
Therefore, the radio frequency module can be adopted to transmit radio signals, and remote wireless alarm is realized.
Drawings
FIG. 1 is a schematic cross-sectional view of a disposable fire early warning sensor apparatus according to the present invention;
fig. 2 is an internal structure view of the throwable fire early warning sensor device of the present invention.
Detailed Description
An embodiment of the throwable fire warning sensor device of the present invention will be described in detail with reference to fig. 1 to 2.
As shown in fig. 1, which is a schematic cross-sectional view of a throwable fire warning sensing device according to the present invention, a casing of the fire warning sensing device is a three-section type casing, specifically, the three-section type casing is a casing front section 5, a casing middle section 6, and a casing tail section 12, which are convenient for installation and disassembly, the casing front section 5 includes a tapered head end and a partial cylindrical portion, which are convenient for insertion into soil, the casing middle section 6 includes a partial cylindrical portion, and the casing tail section 12 includes a partial cylindrical portion of the casing and a tail end extending outward to form an eave, and the design of the casing can ensure that the casing tail section is located above due to buoyancy when the fire warning sensing device is thrown aloft, and the casing front section is located below, so that the fire warning sensing device falls vertically to the ground and is inserted into soil;
the three-section shell is made of high-temperature-resistant zirconia ceramics, can resist high temperature of 1500 ℃, has the heat conductivity coefficient not more than 3W/mK, has the characteristics of good heat insulation performance, high strength, insulation, convenient processing and the like, and can resist high temperature of more than 1300 ℃ because the inner wall and the outer wall of the shell are coated with the high-temperature reflective heat-insulation composite ceramic coating.
Fig. 2 is a diagram showing an internal structure of the throwable fire warning sensing device of the present invention, wherein a heat conducting pin 8 is disposed in the front section 5 of the housing, the heat conducting pin 8 is made of a ceramic material with a high heat conductivity coefficient, and has characteristics of high temperature resistance and high strength, and a needle structure at a lower end of the heat conducting pin extends out from a head end of the front section 5 of the housing and is inserted into a ground surface of soil to perform a heat conducting function, so that when a circuit (such as the radio frequency module 1) in the housing is in a high temperature state, heat can be conducted to the ground; the upper end of the heat conducting contact pin 8 is connected with a cylindrical heat conducting structure, the cylindrical heat conducting structure is positioned in a partial cylindrical part of the front section 5 of the shell, a nano heat insulating aerogel 9 is further arranged between the outer wall of the cylindrical heat conducting structure and the inner wall of the partial cylindrical part of the front section of the shell, the nano heat insulating aerogel has high temperature heat insulating performance and can resist the high temperature of more than 1000 ℃, and the heat conducting coefficient is not more than 0.04W/mK at the high temperature;
a radio frequency module 1 and a fixed seat 4 are installed in the cylindrical heat conducting structure, a nano heat insulation aerogel 10 is also arranged between the radio frequency module 1 and the cylindrical heat conducting structure, the nano heat insulation aerogel wraps the radio frequency module 1 completely to play a role in heat insulation protection, a groove is formed in the bottom of the radio frequency module 1, threads are arranged in the groove, a boss is arranged at the top of the fixed seat 4, threads are arranged on the boss, the groove in the bottom of the radio frequency module 1 is screwed and fixed on the boss at the top of the fixed seat 4 through the threads, and a heat insulation gasket 3 is further arranged on the fixed seat 4 and placed between the fixed seat 4 and the radio frequency module 1; the bottom of the cylindrical heat conduction structure is provided with a boss, the boss is provided with threads, the bottom of the fixed seat 4 is provided with a groove, the threads are arranged in the groove, the groove at the bottom of the fixed seat 4 is screwed and fixed on the boss at the bottom of the cylindrical heat conduction structure through the threads, and therefore the cylindrical heat conduction structure, the fixed seat 4 and the radio frequency module 1 are fixedly connected;
the trigger 7 is arranged in the middle section 6 of the shell, is positioned at the upper part of the radio frequency module 1 and is arranged in a clearance with the radio frequency module 1, the trigger 7 is a trigger element for triggering the radio frequency module 1, the head end of the bottom of the trigger is made of conductive metal, a trigger base 15 is also arranged above the trigger 7, the trigger base 15 is provided with threads and is screwed and fixed at the top of the middle section 6 of the shell, the trigger 7 is connected on the trigger base 15 through a high-temperature spring 13 in a compressed state, a nano heat-insulating aerogel 11 is also arranged between the trigger 7 and the trigger fixing base 15 to wrap the high-temperature spring 13, the edge of the trigger 7 is provided with a convex heat-sensitive material 14, the heat-sensitive material 14 is in a fixed state at normal temperature, so that the trigger 7 is supported and connected on the cylindrical heat-conducting structure, and the high-temperature spring 13 is in a compressed state, a certain gap is formed between the trigger 7 and the radio frequency module 1;
when a fire disaster does not happen, a gap is formed between the trigger 7 and the radio frequency module 1 and is not in direct contact with the gap, when the fire disaster happens, the heat sensitive material 14 melts at high temperature, the high-temperature spring 13 pushes the trigger 7 to enable the conductive metal at the bottom and the head end of the trigger to be in contact with the radio frequency module 1 to form a passage, the radio frequency module is switched on and started, and a radio alarm signal is transmitted to a background monitoring center or a data acquisition station to achieve fire disaster alarm.
Because the forest area in China is large, in practical application, the background monitoring center or the data acquisition station can also transmit fire alarm signals remotely through the Internet of things satellite transmission link, and further work such as remote monitoring and sending fire extinguishing scheduling commands is achieved.
It should be noted that the fire early warning sensing device is powered by the built-in battery, and in a normal state, the built-in battery does not supply power, and when a fire starts, the trigger is in contact with the radio frequency module and is conducted, and then the built-in battery forms a power supply path.
In conclusion, compared with the existing fire early warning technical scheme, the invention has the following advantages:
the structure is simple, the installation is convenient, and the cost is lower compared with other early warning modes;
points can be distributed by a helicopter aiming at a mountain area with a complicated landform and rugged mountain road and difficult access;
the method is used for distributing points aiming at blind spot regions in the current complex mountainous area, so that early warning blind areas can be effectively compensated;
the internal radio frequency module is in a normally closed state and is started only when a fire disaster occurs, and a single device can be used for at least three years.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A fire early warning sensing device capable of throwing is characterized by comprising a shell; install in the casing:
a circuit having a wireless alarm module;
a trigger disposed at a gap from the circuit, and an elastic device for applying a force toward the gap to the trigger;
at least part of the space in the gap is provided with a heat sensitive material for supporting the gap; the heat sensitive material is changed from a solid state to a liquid state or a gaseous state when the temperature is higher than a certain temperature, so that the trigger is contacted with the circuit to conduct the circuit with the wireless alarm module.
2. The apparatus of claim 1,
the heat conduction contact pin that stretches out the casing head end is installed to the head end of casing, has the tube-shape heat conduction structure of connecting this heat conduction contact pin in the casing, tube-shape heat conduction structure cladding is at least partly the circuit setting.
3. The device of claim 2, wherein the head end of the housing is tapered, the tail end extends outward to form a ledge, and a cylindrical portion is disposed between the head end and the tail end.
4. The apparatus of claim 3,
the heat conducting contact pin, the cylindrical heat conducting structure, the gap, the trigger and the elastic device are sequentially arranged in the shell in the direction from the head end to the tail end.
5. The apparatus of claim 2, wherein the cylindrical heat conducting structure is internally provided with a fixing base on which the circuit is mounted.
6. The apparatus of claim 5, wherein a heat insulating spacer is disposed between the circuit and the holder.
7. The device of claim 4, wherein the housing includes a front section, a middle section, and a tail section that are threadedly connected adjacent to one another;
the front section of the shell comprises a head end and a partial cylindrical part of the shell;
the middle section of the shell comprises a part of cylindrical part of the shell;
the shell tail section comprises a part of cylindrical part and a tail end of the shell;
part heat conduction contact pin, tube-shape heat conduction structure, clearance, trigger and circuit set up in the casing anterior segment, resilient means set up in the casing middle section.
8. The apparatus of claim 2, wherein a nano thermal insulation aerogel is disposed between the circuit and the cylindrical heat conducting structure;
a nano heat-insulating aerogel is arranged between the cylindrical heat-conducting structure and the inner wall of the shell;
and nano heat-insulating aerogel is arranged between the elastic device and the inner wall of the shell.
9. The device of claim 2, wherein the shell is made of high-temperature-resistant zirconia ceramic, and the inner wall and the outer wall of the shell are coated with high-temperature reflective heat-insulating composite ceramic paint;
the heat conducting contact pin and the cylindrical heat conducting structure are made of ceramic materials with high heat conducting coefficients.
10. The apparatus of claim 1,
the wireless alarm module is a radio frequency module, and the elastic device is a spring in a compressed state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921354919.5U CN210574172U (en) | 2019-08-20 | 2019-08-20 | Formula of can jettisoning conflagration early warning sensing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921354919.5U CN210574172U (en) | 2019-08-20 | 2019-08-20 | Formula of can jettisoning conflagration early warning sensing device |
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| CN210574172U true CN210574172U (en) | 2020-05-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110459032A (en) * | 2019-08-20 | 2019-11-15 | 北京国电高科科技有限公司 | Formula fire alarm sensing device can be shed |
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2019
- 2019-08-20 CN CN201921354919.5U patent/CN210574172U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110459032A (en) * | 2019-08-20 | 2019-11-15 | 北京国电高科科技有限公司 | Formula fire alarm sensing device can be shed |
| CN110459032B (en) * | 2019-08-20 | 2024-05-28 | 北京国电高科科技有限公司 | Can throw formula conflagration early warning sensing device |
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