CN114463925A

CN114463925A - Fire detection alarm

Info

Publication number: CN114463925A
Application number: CN202111662099.8A
Authority: CN
Inventors: 梁昆; 王观亮; 王健沣
Original assignee: Hangzhou Tpson Technology Co ltd
Current assignee: Hangzhou Tpson Technology Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-05-10

Abstract

The invention discloses a fire detection alarm, which comprises an upper shell, a lower shell, a mounting plate and a smoke detector, wherein a plurality of vent grooves are formed in the lower shell, the upper shell is fixedly connected with the lower shell, the smoke detector is fixed on the mounting plate, the mounting plate is fixedly mounted between the upper shell and the lower shell, a channel is formed in the upper part of the smoke detector, and an element is arranged at the end part of each channel.

Description

Fire detection alarm

Technical Field

The invention belongs to the technical field of detection, and particularly relates to a fire detection alarm.

Background

At present, most of fire detection alarms in the market are majorities based on a single-spectrum single-channel, and along with the complex and diversified decoration materials of modern homes, when a fire disaster occurs, actual fire particles are not limited to specific smoke particle types, but the majorities of the single-spectrum single-channel have large differences in response sensitivity to black smoke, white smoke and smoke, and fire false alarm factors which cannot be overcome by traditional smoke sensations such as water vapor, dust and the like can not be effectively distinguished and identified, so that the life and property safety of people is seriously harmed.

Disclosure of Invention

The invention provides a fire detection alarm for overcoming the defects of the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a fire detection alarm, includes casing, lower casing, mounting panel and smoke detector, be equipped with a plurality of air channels down on the casing, go up the casing with casing fixed connection down, smoke detector fixes on the mounting panel, mounting panel fixed mounting be in go up between casing and the lower casing, smoke detector upper portion is equipped with the passageway, the tip of every passageway all is equipped with components and parts.

Furthermore, the number of the channels is four, the channels are a first channel, a second channel, a third channel and a fourth channel in sequence, light emitters are arranged in the first channel, the second channel and the third channel, and a receiver is arranged in the fourth channel.

Further, moisture can be identified by the cooperation of the first light emitter and the receiver.

Further, the second light emitter is matched with the receiver, so that dust can be identified.

Furthermore, through the cooperation of the third light emitter and the receiver, black smoke can be identified.

Furthermore, a dust screen is further arranged on the cigarette sensor.

Further, the upper shell is provided with a smoke guide groove.

Further, the lower shell and the upper shell are in threaded connection.

Furthermore, the bottom of the lower shell is also provided with a fixing plate which is matched with the lower shell in a clamping manner.

Further, the fixed plate is in clamping fit with the lower shell, the fixed plate is provided with a mounting groove, and a positioning rib is arranged on the periphery of the top of the mounting groove.

In summary, the invention utilizes the differences of the spectrum of red light and blue light with different frequencies and wavelengths to the scattering intensity of particles with different particle size distribution ranges and the differences of the forward scattering angle and the backward scattering angle to qualitatively identify the smoke type, thereby achieving the purpose of early warning and monitoring fire in advance.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the smoke detector.

In the figure: the device comprises an upper shell 1, a lower shell 2, a mounting plate 3, a smoke sensor 4, a vent groove 20, a first channel 40, a second channel 41, a third channel 42, a fourth channel 43, a first light emitter 44, a second light emitter 45, a third light emitter 46, a receiver 47, a dust screen 48, a smoke guide groove 10, a fixing plate 5, a mounting groove 50 and a positioning rib 51.

Detailed Description

As shown in fig. 1-2, a fire detection alarm comprises an upper casing 1, a lower casing 2, a mounting plate 3 and a smoke detector 4, the lower shell 2 is provided with a plurality of vent grooves 20 which are beneficial to air circulation and the gas of the smoke in the air flows into the smoke detector 4, the upper shell 1 is fixed with the lower shell 2 in a threaded manner, the smoke sensor 4 is fixed on the mounting plate 3, the mounting plate 3 is fixedly arranged between the upper shell 1 and the lower shell 2, the lower shell 2 is provided with a plurality of screw mounting grooves, the upper shell 1 and the lower shell 2 are fixedly connected in a mounting mode from bottom to top, the mounting plate 3 is provided with through holes corresponding to the mounting grooves, when the lower shell 2 is screwed with the upper shell 1, the mounting plate 3 can be fixed between the lower shell 2 and the upper shell 1, the upper housing 1 is provided with a smoke guide channel 10, which smoke guide channel 10 facilitates guiding of smoke into a ventilation channel 20 of the lower housing 2.

Specifically, the upper portion of the smoke sensor 4 is provided with a channel, the end portion of each channel is provided with four components, the channels are sequentially a first channel 40, a second channel 41, a third channel 42 and a fourth channel 43, the first channel 40 is internally provided with a first light emitter 44, the second channel 41 is internally provided with a second light emitter 45, the third channel 42 is internally provided with a third light emitter 46, the fourth channel 43 is internally provided with a receiver 47, water vapor can be identified through the matching of the first light emitter 44 and the receiver 47, dust can be identified through the matching of the second light emitter 45 and the receiver 47, black smoke can be identified through the matching of the third light emitter 46 and the receiver 47, an included angle formed by projecting the axis of the first light emitter 44 and the axis of the second light emitter 45 to the horizontal plane is 45 degrees, an included angle formed by projecting the axis of the first light emitter 44 and the axis of the third light emitter 46 to the horizontal plane is 158 degrees, the included angle formed by the projection of the axis of the third light emitter 46 and the axis of the receiver 47 to the horizontal plane is 70 degrees, and the smoke types are qualitatively identified by utilizing the differences of the scattering intensities of the red light spectrum and the blue light spectrum with different frequencies and wavelengths to the particles with different particle size distribution ranges and the differences of the front scattering angles and the rear scattering angles, so that the purpose of early warning and monitoring fire disasters is achieved; feel and still be equipped with dust screen 48 on the cigarette ware 4, dust screen 48 is equipped with a plurality of through-holes, can completely cut off the impurity in the air that is greater than the through-hole through the through-hole, also is favorable to improving the degree of accuracy of feeling cigarette ware 4 discernment.

Specifically, the bottom of the lower shell 2 is also provided with a fixing plate 5 which is clamped and matched with the lower shell 2; the fixing plate 5 is in clamping fit with the lower shell 2, the fixing plate 5 is provided with an installation groove 50, and the periphery of the top of the installation groove 50 is provided with a positioning rib 51; the mounting groove 50 can pass through the bolt, and the location muscle 51 can contact with the bottom of lower casing 2 through the top, supports casing 2 and prevents to warp down, and the height that highly is higher than the bolt head of location muscle 51 simultaneously and can restrict the bolt rotation through the border of location muscle 51, also prevents that the bolt from droing through the contact of bolt head and lower casing 2.

Claims

1. A fire detection alarm characterised by: including last casing (1), casing (2), mounting panel (3) and feel cigarette ware (4) down, be equipped with a plurality of air channels (20) down on casing (2), go up casing (1) with casing (2) fixed connection down, it fixes on mounting panel (3) to feel cigarette ware (4), mounting panel (3) fixed mounting be in go up between casing (1) and casing (2) down, it is equipped with the passageway to feel cigarette ware (4) upper portion, the tip of every passageway all is equipped with components and parts.

2. A fire detection alarm according to claim 1 wherein: the optical fiber sensor is characterized in that the number of the channels is four, the channels are a first channel (40), a second channel (41), a third channel (42) and a fourth channel (43) in sequence, a first light emitter (44) is arranged in the first channel (40), a second light emitter (45) is arranged in the second channel (41), a third light emitter (46) is arranged in the third channel (42), and a receiver (47) is arranged in the fourth channel (43).

3. A fire detection alarm according to claim 2 wherein: moisture can be identified by the cooperation of the first light emitter (44) and the receiver (47).

4. A fire detection alarm according to claim 2 wherein: through the cooperation of the second light emitter (45) and the receiver (47), dust can be identified.

5. A fire detection alarm according to claim 2 wherein: by the cooperation of the third light emitter (46) and the receiver (47), black smoke can be recognized.

6. A fire detection alarm according to claim 1 wherein: the smoke detector (4) is also provided with a dust screen (48).

7. A fire detection alarm according to claim 1 wherein: the upper shell (1) is provided with a smoke guide groove (10).

8. A fire detection alarm according to claim 1 wherein: the lower shell (2) is in threaded connection with the upper shell (1).

9. A fire detection alarm according to claim 1 wherein: the bottom of the lower shell (2) is also provided with a fixing plate (5) which is clamped and matched with the lower shell (2).

10. A fire detection alarm according to claim 9 wherein: fixed plate (5) and lower casing (2) are the joint cooperation, fixed plate (5) are equipped with mounting groove (50), mounting groove (50) top periphery is equipped with location muscle (51).