CN210348732U - Fire early warning sensing device and earth magnetism and guide lamp using same - Google Patents
Fire early warning sensing device and earth magnetism and guide lamp using same Download PDFInfo
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- CN210348732U CN210348732U CN201921301309.9U CN201921301309U CN210348732U CN 210348732 U CN210348732 U CN 210348732U CN 201921301309 U CN201921301309 U CN 201921301309U CN 210348732 U CN210348732 U CN 210348732U
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Abstract
The utility model discloses a fire early warning sensing device and use its earth magnetism and guide lamp belongs to fire early warning technique and earth magnetism technical field. The smoke detector of the existing fire detection and alarm system does not have a waterproof structure for the fire early warning device, so that the application range is narrow and the user experience is poor. The utility model comprises a fire detector and a shell for installing the fire detector, wherein the shell is made of waterproof material; the shell surface of the shell facing the source to be measured is provided with at least one opening. The utility model is provided with the electric valve at the opening, and the electric valve is associated with the opening and closing according to the electric signal of the water immersion probe, so that the electric valve can be quickly closed under the condition of water, and rainwater or splashed water can be effectively prevented from entering the fire detector; can be directly applied to outdoor occasions without shielding. The utility model discloses at the opening part assembly valve structure of sensor, break prior art bias, think about ingenious, the scheme is feasible.
Description
Technical Field
The utility model relates to a fire early warning sensing device and use its earth magnetism and guide lamp belongs to fire early warning technique and earth magnetism technical field.
Background
Chinese patent (publication No. CN 206214628U) discloses a fire detection and alarm system, which comprises a smoke detector, a control chip, a water spray electromagnetic valve, a positioning module, an indoor alarm module, a communication module, a first signal receiving terminal, a remote alarm module and a second signal receiving terminal, the control chip is respectively connected with the smoke detector, the water spraying electromagnetic valve, the positioning module and the indoor alarm module, the control chip is respectively connected with the first signal receiving terminal, the remote alarm module and the second signal receiving terminal through the communication module, the utility model discloses a smoke detection module is installed in the parking lot, when smoke exists, the alarm reminding is sent out, signals are sent to the receiving terminal through the communication module, the alarm is timely sent to security personnel and fire alarm, the fire scene can be controlled as early as possible, and great target personnel and property loss are avoided.
However, the smoke detector of the fire detection and alarm system does not have a waterproof structure for the fire early warning device, and in order to effectively detect the fire, the sensor is directly exposed outside, when the outside rains or has a water source, rainwater or splashed water is easily attached to the sensor, so that the sensor cannot normally work, for example, the temperature sensor cannot normally detect the room temperature, the flame detector cannot normally identify flame, the smoke sensor cannot normally detect smoke, and further the fire detection and alarm system fails, therefore, the existing fire detection and alarm system cannot be directly applied to outdoor non-shielding occasions, the application range is narrow, and the user experience is poor.
Further: the invention discloses a geomagnetic vehicle detector (CN 105469607B), which specifically comprises a PCBA, electric oil, a bracket and a shell, wherein one end of the bracket is provided with a PCBA clamping piece, the other end of the bracket is provided with a battery holder, the PCBA is fixed on the PCBA clamping piece, the battery is fixed on the battery holder, the shell comprises a shell and a shell cover, the shell cover and the shell are welded together to form a sealed cavity, and the bracket fixed with the PCBA and the battery is assembled on the shell in a manner that the PCBA clamping piece faces the bottom of the shell and is sealed in the sealed cavity. The geomagnetic vehicle detector and the installation method thereof can basically prevent the PCBA from being soaked, and improve the waterproof performance of the geomagnetic vehicle detector.
However, the geomagnetism and the existing geomagnetism can only be used for detecting whether a vehicle passes through or not, the fire condition of the vehicle cannot be effectively monitored, and the function is single.
More step more, current guide lamp, for example solar energy cast aluminium way lamp, reflection of light way lamp, road surface reflection of light lamp, protruding stroboscopic induction lamp etc. can only be used for the guide vehicle to pass through, can not carry out effective monitoring to the condition of a fire of vehicle, and the function is single.
Particularly for new energy vehicles, more than 90% of new energy vehicles burn to start from power batteries, and more than 95% of new energy electric vehicles burn to start from batteries, so that after the new energy vehicles catch fire, smoke spreads to the position of a nearby alarm or is discovered by people from the bottom of the new energy vehicles, long time is needed, the alarm opportunity is easily delayed, and huge property damage is caused. Therefore, the new energy vehicle is detected from the bottom of the vehicle or the lower part of the vehicle most scientifically and reasonably, but the technology is only published. SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, one object of the utility model is to provide a fire early warning sensing device with a valve structure, which can effectively prevent rainwater or splashed water from entering the interior of the fire early warning sensing device; can be directly applied to outdoor occasions without shielding.
Another object of the present invention is to provide a method for detecting the geomagnetism of a vehicle, which can detect the vehicle passing through.
Another object of the present invention is to provide a guiding lamp capable of timely finding the fire of a vehicle when the vehicle is guided to pass through.
In order to realize the first purpose, the technical scheme of the utility model is that:
a fire early warning sensing device capable of preventing water comprises a fire detector and a shell for mounting the fire detector, wherein the shell is made of a waterproof material; the shell surface of the shell facing the source to be measured is provided with at least one opening.
A water immersion probe for detecting whether water exists is arranged at the adjacent opening;
an electric valve for closing the opening is arranged at the opening;
the opening and closing of the electric valve are related to the action of the water immersion probe;
the fire detector comprises a smoke sensor capable of detecting smoke or/and an infrared temperature sensor capable of detecting temperature or/and an ultraviolet flame detection sensor capable of detecting flame, and the smoke sensor or/and the infrared temperature sensor and/or the ultraviolet flame detection sensor are installed adjacent to the opening.
The utility model is provided with the electric valve at the opening, and the electric valve is associated with the opening and closing according to the electric signal of the water immersion probe, so that the electric valve can be quickly closed under the condition of water, and rainwater or splashed water can be effectively prevented from entering the fire detector; can be directly applied to outdoor occasions without shielding. The utility model discloses at the opening part assembly valve structure of sensor, break prior art bias, think about ingenious, the scheme is feasible.
Furthermore, set up smoke transducer and set up infrared temperature sensor or ultraviolet flame detection sensor simultaneously and can assist smoke transducer to detect the condition of a fire, whether judge the condition of a fire according to smog, temperature or flame are synthesized, can improve the degree of accuracy of condition of a fire early warning, avoid the condition of wrong report appearing.
As a preferable technical measure:
the electric valve is an electric ball valve or an electric butterfly valve or an electric stop valve, the electric ball valve or the electric butterfly valve is assembled in the shell, a valve hole of the electric valve is communicated with the opening, the opening is closed and opened, and the electric valve is simple and practical in structure.
As a preferable technical measure:
the water logging probe sets up in the surface of casing, the surface of casing is outside convex cambered surface structure. The waterproof capability of the shell is further enhanced, and when rainwater or splashed water falls on the shell, the shell can slide off, so that accumulation on the shell is avoided, and the service life of the shell is prolonged.
As a preferable technical measure:
the shell comprises a first shell part and a second shell part; the first shell part and the second shell part are fixedly connected together to form a cavity capable of accommodating the fire detector;
the opening is connected with at least one vent pipe in a penetrating way; one end of the vent pipe is communicated with the cavity of the shell, and the other end of the vent pipe protrudes out of the outer surface of the first shell part.
The water-proof measure of the utility model is further enhanced by matching with the valve structure, when fire occurs, the smoke or hot air can be rapidly diffused to the fire detector through the vent pipe, and the light of the flame can also be irradiated to the internal fire detector through the vent pipe; meanwhile, because the existing fire detector is basically installed in a hanging way, and the openings of the vent pipes are arranged downwards, even if the installation environment is rainy or splashed with water, the water is difficult to enter the interior of the fire detector through the pipe cavity; and then the utility model discloses can direct application can not influence into smog to outdoor occasion that does not have the sheltering from or the indoor occasion that is close to the water source, application scope is wide.
As a preferable technical measure: the casing is connected with a visual window structure that can breathe freely, the visual window structure covers the breather pipe of establishing water logging probe and casing, protects casing and sensor, avoids some great debris of volume to damage casing and sensor.
As a preferable technical measure: for the fire early warning sensing device installed in a hanging mode, the first shell portion faces towards a source to be detected; the fire detector is mounted on the second housing portion and spaced from the first housing portion.
When the utility model discloses according to conventional mode, during the suspension installation, the breather pipe is down, if the lumen that the breather pipe set up is very short, probably has the splash to get into the breather pipe, but first shell is located the below, and the drop of water can only flow to first shell at most, ensures that the condition of a fire detector who is located on the second shell does not soak.
As a preferable technical measure: for a fire early warning sensing device installed below a source to be detected, the first shell part faces the source to be detected; the fire detector is mounted on the first housing portion and spaced from the second housing portion.
When the utility model discloses a new-type mounting means, when ground installation or being less than the source of awaiting measuring installation, the breather pipe up, even when having drop of water to get into the breather pipe, the breather pipe port that is located first shell internal surface can carry out the drainage to water, directly drains water to the second shell on, avoids water to accumulate on the internal surface of first shell, ensures that the condition of a fire detector does not soak.
As a preferable technical measure: the adjacent fire detectors are provided with harmful gas sensors; and a filter screen is arranged at the position of the pipe orifice of the adjacent ventilating pipe.
In order to realize the second purpose, the technical scheme of the utility model is that:
the geomagnetic sensor comprises a magnetic sensor, a battery, a box body and a box cover, wherein the box cover and the box body are welded together to form a sealed cavity for assembling the magnetic sensor and the battery; a water immersion probe is arranged in the inner cavity of the box body or/and the lower wall of the box cover;
the box cover is provided with at least one opening, and the lower wall of the box cover is provided with a fire detector;
an electric valve for closing the opening is arranged at the opening;
the opening and closing of the electric valve are related to the action of the water logging probe.
The utility model discloses set up a plurality of openings and assemble distribution electric valve on the earth magnetism lid, according to the electric signal of water logging probe, the opening and closing of associated electric valve can be under the condition that has water, and quick closing can effectively avoid rainwater or splash to get into the condition of a fire detector inside; realize the effective detection of earth magnetism to the vehicle condition of a fire, because the earth magnetism is located the vehicle below, can in time discover the condition of a fire of vehicle, be particularly suitable for the monitoring of the condition of a fire of new energy vehicle, can in time discover the condition of a fire of new energy vehicle. The utility model discloses assemble fire early warning device on the earth magnetism, break prior art bias, think about ingenious, the scheme is feasible.
Furthermore, the electric valve can be started only under the condition of water, so that the energy consumption is saved, and the service life of the geomagnetism is prolonged.
Further, the utility model discloses a ground magnetism can use in open air occasion, for example set up traffic lights's highway both sides, district vehicle entrance and parking stall on, its application scope is wide, and the function is various.
As a preferable technical measure:
the vertical projection of the probe of the water immersion probe coincides with the vertical projection of the opening; a filter screen is arranged at the opening to reduce dust and impurities from falling into the earth magnetism, and the fire detector is a smoke sensor or/and a temperature sensor or/and a flame detection sensor;
the interior of the box body is provided with a fixing frame used for assembling the magnetic sensor, the magnetic sensor keeps a certain distance from the bottom wall and the side wall of the box body, and therefore accumulated water is prevented from immersing the sensor.
In order to achieve the third purpose, the technical solution of the present invention is:
a guide lamp includes a panel lamp and a housing in which the panel lamp is installed; the fire early warning device is characterized in that the inner cavity or the outer wall of the housing is provided with the waterproof fire early warning sensing device as claimed in any one of claims 1 to 7.
The fire early warning sensing device assembled on the housing of the utility model is associated with the opening and closing of the electric valve according to the electric signal of the water immersion probe, can be quickly closed under the condition of water, and can effectively prevent rainwater or splashed water from entering the interior of the fire detector; the realization is to the effective detection of vehicle condition of a fire, because the guide lamp is located the vehicle below, can in time discover the vehicle condition of a fire, is particularly suitable for the monitoring of the condition of a fire to new energy vehicle. The utility model discloses assemble the condition of a fire early warning device on the pilot lamp, break prior art bias, think about ingenious, the scheme is feasible.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model is provided with the electric valve at the opening, and the electric valve is associated with the opening and closing according to the electric signal of the water immersion probe, so that the electric valve can be quickly closed under the condition of water, and rainwater or splashed water can be effectively prevented from entering the interior of the fire detector; can be directly applied to outdoor occasions without shielding. The utility model discloses at the opening part assembly valve structure of sensor, break prior art bias, think about ingenious, the scheme is feasible.
Furthermore, the utility model discloses set up a plurality of openings and install the electric valve on the earth magnetism lid, according to the electric signal of water logging probe, the opening and closing of electric valve is related to, can be under the condition that has water, and quick closing can effectively avoid rainwater or splash to get into the fire detector inside; realize the effective detection of earth magnetism to the vehicle condition of a fire, because the earth magnetism is located the vehicle below, can in time discover the condition of a fire of new forms of energy car, be particularly suitable for the monitoring of the condition of a fire to the new forms of energy vehicle. The utility model discloses assemble fire early warning device on the earth magnetism, break prior art bias, think about ingenious, the scheme is feasible.
And further:
the fire early warning sensing device assembled on the housing of the utility model is associated with the opening and closing of the electric valve according to the electric signal of the water immersion probe, can be quickly closed under the condition of water, and can effectively prevent rainwater or splashed water from entering the interior of the fire detector; the realization is to the effective detection of vehicle condition of a fire, because the guide lamp is located the vehicle below, can in time discover the vehicle condition of a fire, is particularly suitable for the monitoring of the condition of a fire to new energy vehicle. The utility model discloses assemble the condition of a fire early warning device on the pilot lamp, break prior art bias, think about ingenious, the scheme is feasible.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a view of the utility model with an additional ventilation tube;
fig. 3 is a structural diagram of the present invention with a plurality of openings.
Description of reference numerals:
1. a fire detector; 2. a housing; 21. a first shell portion; 22. a second shell portion; 3. a breather pipe; 4. an electrically operated valve; 5. and (4) soaking the probe in water.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
On the contrary, the invention is intended to cover alternatives, modifications, equivalents and alternatives which may be included within the spirit and scope of the invention as defined by the appended claims. Furthermore, in order to provide a better understanding of the present invention to the public, certain specific details are set forth in the following detailed description of the invention. It will be apparent to those skilled in the art that the present invention may be practiced without these specific details.
It should be noted that when two elements are "affixed," the two elements can be directly connected or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "upper", "lower" and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 to 3, a waterproof fire early warning sensing device comprises a fire detector 1 and a housing 2 for mounting the fire detector 1, wherein the housing 2 is made of a waterproof material; the shell surface of the shell 2 facing the source to be measured is provided with at least one opening.
A water immersion probe 5 for detecting whether water exists is arranged at the adjacent opening;
an electric valve 4 for closing the opening is arranged at the opening;
the opening and closing of the electric valve 4 are related to the action of the water logging probe 5;
the fire detector 1 comprises a smoke sensor or/and an infrared temperature sensor or/and an ultraviolet flame detection sensor capable of detecting smoke.
The utility model discloses at the opening part, assemble electric valve 4 to according to the electric signal of water logging probe 5, the opening and closing of electric valve 4 is concerned, can be under the condition that has water, quick closing, can effectively avoid rainwater or splash to get into the condition of a fire detector 1 inside; can be directly applied to outdoor occasions without shielding. The utility model discloses at opening part assembly valve structure, break prior art bias, think about ingenious, the scheme is feasible.
The utility model discloses 4 concrete embodiments of electric valve:
the electric valve 4 is an electric ball valve or an electric butterfly valve or an electric stop valve, the electric ball valve or the electric butterfly valve is assembled in the shell 2, a valve hole of the electric valve 4 is communicated with the opening, the opening is closed and opened, and the electric valve is simple and practical in structure.
The utility model discloses water logging probe 5 mounted position concrete embodiment:
the water logging probe 5 is arranged on the outer surface of the shell 2, and the outer surface of the shell 2 is of an outwardly-protruding cambered surface structure. The waterproof capability of the shell 2 is further enhanced, and when rainwater or splashed water falls on the shell 2, the rainwater or splashed water can slide off, so that the accumulation on the shell 2 is avoided, and the service life of the shell 2 is prolonged.
As shown in fig. 2, the present invention provides a specific embodiment of the casing 2 with an additional ventilation pipe 3:
the housing 2 comprises a first shell portion 21 and a second shell portion 22; the first shell part 21 and the second shell part 22 are fixedly connected together to form a cavity capable of accommodating the fire detector 1;
the opening is connected with at least one vent pipe 3 in a penetrating way; one end of the vent pipe 3 is communicated with the cavity of the shell 2, and the other end protrudes out of the outer surface of the first shell part 21.
The water-proof measure of the utility model is further enhanced by matching with the valve structure, when fire occurs, the smoke or hot air can be rapidly diffused to the fire detector 1 through the vent pipe 3, and the light of the flame can also be irradiated to the internal fire detector 1 through the vent pipe 3; meanwhile, because the existing fire detector 1 is basically installed in a hanging manner, and the openings of the air pipes 3 are arranged downwards, even if the installation environment is rainy or splashed with water, water is difficult to enter the interior of the fire detector 1 through the pipe cavity; and then the utility model discloses can direct application can not influence into smog to outdoor occasion that does not have the sheltering from or the indoor occasion that is close to the water source, application scope is wide.
The utility model discloses set up visual window structure embodiment: casing 2 is connected a visual window structure that can breathe freely, but visual window structure cover establishes water logging probe 5 and casing 2's breather pipe 3, protects casing 2 and sensor, avoids some great debris of volume to damage casing 2 and sensor.
The utility model discloses sensor mounted position a concrete embodiment: for the fire early warning sensing device installed in a hanging mode, the first shell portion 21 faces towards a source to be measured; the fire detector 1 is mounted on the second housing portion 22 and is spaced apart from the first housing portion 21.
When the utility model discloses according to conventional mode, during the suspension installation, breather pipe 3 is down, if the lumen that breather pipe 3 set up is very short, probably has splash to get into breather pipe 3, nevertheless first shell 21 is located the below, and the drop of water can only flow to first shell 21 at most, ensures that the condition of a fire detector 1 that is located on second shell 22 does not soak.
The utility model discloses another kind of concrete embodiment of sensor mounted position: for a fire early warning sensing device installed below a source to be detected, the first shell part 21 faces the source to be detected; the fire detector 1 is mounted on the first housing portion 21 and is spaced apart from the second housing portion 22.
When the utility model discloses a new-type mounting means, when ground installation or being less than the source of awaiting measuring installation, breather pipe 3 was up, even when having drop of water to get into breather pipe 3, the 3 ports of breather pipe that are located first shell 21 internal surface can carry out the drainage to water, directly drains second shell 22 to water on, avoids water to accumulate on the internal surface of first shell 21, ensures that condition of a fire detector 1 does not soak.
A harmful gas sensor or/and an ultrasonic sensor is/are arranged adjacent to the fire detector 1; the position of the outer pipe orifice of the adjacent air pipe 3 is provided with a filter screen.
The utility model discloses a ground magnetic structure embodiment:
the geomagnetic sensor comprises a magnetic sensor, a battery, a box body and a box cover, wherein the box cover and the box body are welded together to form a sealed cavity for assembling the magnetic sensor and the battery; a water immersion probe is arranged in the inner cavity of the box body or/and the lower wall of the box cover;
the box cover is provided with at least one opening, and the lower wall of the box cover is provided with a fire detector 1;
an electric valve 4 for closing the opening is arranged at the opening;
the opening and closing of the electric valve 4 is related to the action of the water logging probe 5.
The utility model discloses set up a plurality of openings and assemble distribution electric valve 4 on the earth magnetism lid, according to the electric signal of water logging probe 5, the opening and closing of electric valve 4 is concerned, can be under the condition that has water, and quick closing can effectively avoid rainwater or splash to get into the fire detector 1 inside; the effective detection of the geomagnetism to the fire of the vehicle is realized. The utility model discloses assemble fire early warning device on the earth magnetism, break prior art bias, think about ingenious, the scheme is feasible.
Furthermore, the electric valve 4 can be started only under the condition of water, so that the energy consumption is saved, and the service life of the geomagnetism is prolonged.
Further, the utility model discloses a ground magnetism can use in open air occasion, for example set up traffic lights's highway both sides, district vehicle entrance and parking stall on, its application scope is wide, and the function is various.
The vertical projection of the probe of the water immersion probe coincides with the vertical projection of the opening; a filter screen is arranged at the opening to reduce dust and impurities from falling into the earth magnetism, and the fire detector 1 is a smoke sensor or/and a temperature sensor or/and a flame detection sensor;
the interior of the box body is provided with a fixing frame used for assembling the magnetic sensor, the magnetic sensor keeps a certain distance from the bottom wall and the side wall of the box body, and therefore accumulated water is prevented from immersing the sensor.
The utility model discloses a guide lamp embodiment:
a guide lamp includes a panel lamp and a housing in which the panel lamp is installed; the fire early warning device is characterized in that the inner cavity or the outer wall of the housing is provided with the waterproof fire early warning sensing device as claimed in any one of claims 1 to 7.
In the present application, the fastening may be a screw connection, a welding connection, a riveting connection, an inserting connection, or a connection through a third component, and those skilled in the art may select the fastening according to actual situations.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A waterproof fire early warning sensing device comprises a fire detector (1) and a shell (2) for mounting the fire detector (1), wherein the shell (2) is made of a waterproof material; it is characterized in that the preparation method is characterized in that,
the shell surface of the shell (2) facing the source to be measured is provided with at least one opening;
a water immersion probe (5) for detecting whether water exists is arranged at the adjacent opening;
an electric valve (4) for closing the opening is arranged at the opening;
the opening and closing of the electric valve (4) are related to the action of the water logging probe (5);
the fire detector (1) comprises a smoke sensor capable of detecting smoke or/and an infrared temperature sensor capable of detecting temperature or/and an ultraviolet flame detection sensor capable of detecting flame, and the smoke sensor or/and the infrared temperature sensor and/or the ultraviolet flame detection sensor are installed adjacent to an opening.
2. The fire early warning sensing apparatus capable of preventing water as claimed in claim 1,
the electric valve (4) is an electric ball valve, an electric butterfly valve or an electric stop valve and is assembled in the shell (2), and a valve hole of the electric valve (4) is communicated with the opening.
3. The fire early warning sensing apparatus capable of preventing water as claimed in claim 2,
the water logging probe (5) is arranged on the outer surface of the shell (2), and the outer surface of the shell (2) is of an outwardly-protruding cambered surface structure.
4. A fire early warning sensor apparatus capable of being waterproofed according to claim 3,
the shell (2) comprises a first shell part (21) and a second shell part (22); the first shell part (21) and the second shell part (22) are fixedly connected together to form a cavity capable of accommodating the fire detector (1);
the opening is connected with at least one vent pipe (3) in a penetrating way; one end of the vent pipe (3) is communicated with the cavity of the shell (2), and the other end of the vent pipe protrudes out of the outer surface of the first shell part (21).
5. A waterproof fire warning sensor as claimed in claim 4, characterised in that the housing (2) is connected to a permeable window structure which houses the water immersion probe (5) and the vent tube (3) of the housing (2).
6. A fire advance sensing apparatus which is waterproof according to any one of claims 4 to 5, wherein the first housing portion (21) faces a source to be tested for a suspension-mounted fire advance sensing apparatus; the fire detector (1) is mounted on the second housing part (22) and is kept at a distance from the first housing part (21).
7. A fire early warning sensor device capable of waterproofing according to any one of claims 4 to 5, wherein for a fire early warning sensor device installed below a source to be measured, the first housing portion (21) faces the source to be measured; the fire detector (1) is mounted on the first housing part (21) and is kept at a distance from the second housing part (22).
8. The geomagnetic sensor comprises a magnetic sensor, a battery, a box body and a box cover, wherein the box cover and the box body are welded together to form a sealed cavity for assembling the magnetic sensor and the battery; it is characterized in that the preparation method is characterized in that,
a water immersion probe (5) is arranged in the inner cavity of the box body or/and the lower wall of the box cover;
the box cover is provided with at least one opening, and the lower wall of the box cover is provided with a fire detector (1);
an electric valve (4) for closing the opening is arranged at the opening;
the opening and closing of the electric valve (4) is related to the action of the water logging probe (5).
9. A geomagnetism according to claim 8,
the probe of the water immersion probe (5) is superposed with the vertical projection of the opening; a filter screen is arranged at the opening, and the fire detector (1) is a smoke sensor or/and a temperature sensor or/and a flame detection sensor;
the interior of the box body is provided with a fixing frame used for assembling the magnetic sensor, and the magnetic sensor keeps a certain distance from the bottom wall and the side wall of the box body.
10. A guide lamp includes a panel lamp and a housing in which the panel lamp is installed; the fire early warning device is characterized in that the inner cavity or the outer wall of the housing is provided with the waterproof fire early warning sensing device as claimed in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921301309.9U CN210348732U (en) | 2019-08-12 | 2019-08-12 | Fire early warning sensing device and earth magnetism and guide lamp using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921301309.9U CN210348732U (en) | 2019-08-12 | 2019-08-12 | Fire early warning sensing device and earth magnetism and guide lamp using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210348732U true CN210348732U (en) | 2020-04-17 |
Family
ID=70174445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921301309.9U Active CN210348732U (en) | 2019-08-12 | 2019-08-12 | Fire early warning sensing device and earth magnetism and guide lamp using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210348732U (en) |
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2019
- 2019-08-12 CN CN201921301309.9U patent/CN210348732U/en active Active
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