CN219642368U - Air suction type composite alarm - Google Patents

Abstract

The utility model relates to an air suction type compound alarm which comprises a mounting box, an air suction unit, a smoke detection unit and a dangerous gas detection unit, wherein the mounting box is provided with a plurality of air suction holes; the mounting box is provided with an air inlet and an air outlet, an air passage communicated with the air inlet and the air outlet is arranged in the mounting box, and the air suction unit is arranged in the mounting box to form negative pressure in the air passage; along the air flow direction, a smoke detection unit and a dangerous gas detection unit are sequentially arranged. The air suction type composite alarm provided by the utility model can detect the concentration of smoke particles and the concentration of dangerous gases in the air at the same time, and is convenient to install, small in occupied installation space and high in cost performance. Along the air current flow direction, set gradually smog detecting element, dangerous gas detecting element, be favorable to paroxysmal smog to be detected by smog detecting element before concentration is excessively diluted.

Description

Air suction type composite alarm

Technical Field

The utility model relates to the technical field of alarm devices, in particular to an air suction type compound alarm.

Background

Currently, different detectors are generally used to detect specific detection objects for different fire hazards. For example: the methane detector is used for detecting gas leakage, the carbon monoxide detector is used for detecting the concentration of carbon monoxide in the air, and the smoke detector is used for detecting the concentration of smoke particles in the air. When the concentration of the detected object is higher than the threshold value, the related alarm device gives an alarm to prompt related personnel to detect that the concentration of the detected object is too high, so that the related personnel can take countermeasures early to relieve danger or escape.

In order to prevent fire, smoke detectors, methane detectors and carbon monoxide detectors can be installed in the scenes of families, restaurants and hotels, which are all possible to generate fire. However, the three kinds of probes are separately installed, and the installation process is complicated to be performed three times. And the three kinds of detectors need to occupy some installation space respectively, and the installation space that the whole occupation of three kinds of detectors is great. In addition, the users purchase the smoke detector, the methane detector and the carbon monoxide detector respectively, the total purchase price is higher, and the cost performance is lower.

Disclosure of Invention

In view of the above, it is necessary to provide an air-breathing type compound alarm. The air suction type compound alarm can detect the concentration of smoke particles and the concentration of dangerous gases in the air simultaneously, and is convenient to install, small in occupied installation space and high in cost performance.

In order to solve the problems, the utility model provides the following technical scheme:

an air suction type compound alarm comprises a mounting box, an air suction unit, a smoke detection unit and a dangerous gas detection unit; the mounting box is provided with an air inlet and an air outlet, an air passage communicated with the air inlet and the air outlet is arranged in the mounting box, and the air suction unit is arranged in the mounting box to form negative pressure in the air passage; and the smoke detection unit and the dangerous gas detection unit are sequentially arranged along the flowing direction of the airflow.

In one embodiment, the air channel at least comprises a first air chamber and a second air chamber, the air inlet, the first air chamber, the second air chamber and the air outlet are sequentially communicated, and at least two dangerous gas detection units are respectively positioned in the first air chamber and the second air chamber.

In one embodiment, the hazardous gas detection unit located in the first gas chamber is a methane detector, and the hazardous gas detection unit located in the second gas chamber is a carbon monoxide detector.

In one embodiment, the mounting box comprises a front shell and a rear shell, wherein the front shell is provided with a first air inlet sub-port and a first air outlet sub-port, the rear shell is provided with a second air inlet sub-port and a second air outlet sub-port, the front shell cover is combined with the rear shell, and the first air inlet sub-port and the first air outlet sub-port are spliced into the air inlet; the second air inlet and the second air outlet are spliced to form the air outlet.

In one embodiment, the number of the dangerous gas detection units is at least two, wherein: at least one of the dangerous gas detection units is a methane detector, and at least one of the dangerous gas detection units is a carbon monoxide detector.

In one embodiment, the air passage is in a U-shaped arrangement, an air inlet end of the air passage is communicated with the air inlet, and an air outlet end of the air passage is communicated with the air outlet.

In one embodiment, the air suction type composite alarm further comprises an alarm unit and a circuit board arranged in the mounting box, and the smoke detection unit, the dangerous gas detection unit and the alarm unit are all connected to the circuit board.

In one embodiment, the alarm unit comprises a buzzer connected to the circuit board, and the mounting box is provided with a sound outlet corresponding to the buzzer.

In one embodiment, the alarm unit comprises at least two tri-colored lamps, the tri-colored lamps penetrate through the mounting box, and the smoke detection unit and the dangerous gas detection unit are connected to different tri-colored lamps through the circuit board.

In one embodiment, the air suction type composite alarm further comprises a filter screen arranged on the air passage, and the filter screen and the smoke detection unit are sequentially arranged along the air flow direction.

The utility model has at least the following beneficial effects:

the air suction type composite alarm provided by the utility model can detect the concentration of smoke particles and the concentration of dangerous gases in the air at the same time, and is convenient to install, small in occupied installation space and high in cost performance. Furthermore, the smoke detection unit and the dangerous gas detection unit are arranged in sequence along the airflow flowing direction, which is beneficial to the fact that the paroxysmal smoke is detected by the smoke detection unit before the concentration is excessively diluted. Furthermore, the inhalation unit is capable of actively inhaling the paroxysmal smoke into the mounting box, which is also advantageous for the paroxysmal smoke to be detected by the smoke detection unit before the concentration is excessively diluted.

Drawings

FIG. 1 is a schematic diagram of an embodiment of an aspiration type combination alarm;

FIG. 2 is a schematic view of the structure of the portion of the air-breathing composite alarm shown in FIG. 1 except for the front housing;

fig. 3 is an exploded view of the air-breathing composite alarm of fig. 1.

Reference numerals:

1. a mounting box; 11. an air inlet; 12. an air outlet; 13. an airway; 131. a first air chamber; 132. a second air chamber; 133. an intake extension; 14. a sound outlet hole; 15. a front shell; 151. a first air inlet; 152. the first air outlet is divided into openings; 16. a rear case; 161. a second air inlet; 162. the second air outlet is divided into openings; 2. an air suction unit; 3. a smoke detection unit; 4. a hazardous gas detection unit; 41. a methane detector; 42. a carbon monoxide detector; 5. an alarm unit; 51. a buzzer; 52. a tri-color lamp; 6. a circuit board; 7. and (5) a filter screen.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Currently, different detectors are generally used for detecting different fire hazards. For example: the methane detector is used for detecting gas leakage, the carbon monoxide detector is used for detecting the concentration of carbon monoxide in the air, and the smoke detector is used for detecting the concentration of smoke particles in the air. When the concentration of the detected object is higher than the threshold value, the related alarm device gives an alarm to prompt related personnel to detect that the concentration of the detected object is too high, so that the related personnel can take countermeasures early to relieve danger or escape.

In order to prevent fire, smoke detectors, methane detectors and carbon monoxide detectors can be installed in the scenes of families, restaurants and hotels, which are all possible to generate fire. However, the three kinds of probes are separately installed, and the installation process is complicated to be performed three times. And the three kinds of detectors need to occupy some installation space respectively, and the installation space that the whole occupation of three kinds of detectors is great. In addition, the users purchase the smoke detector, the methane detector and the carbon monoxide detector respectively, the total purchase price is higher, and the cost performance is lower.

In order to solve the problems, the utility model provides the air suction type compound alarm, which integrates a smoke detection unit and a dangerous gas detection unit into a whole, can detect the concentration of smoke particles and the concentration of dangerous gas in air at the same time, and is convenient to install, small in occupied installation space and high in cost performance.

Referring to fig. 1 to 3, the air suction type composite alarm provided by the utility model comprises a mounting box 1, a smoke detection unit 3 and a dangerous gas detection unit 4. The smoke detection unit 3 and the dangerous gas detection unit 4 are both arranged on the mounting box 1, the smoke detection unit 3 is used for detecting the concentration of smoke particles in the air, and the dangerous gas detection unit 4 is used for detecting the concentration of dangerous gas in the air.

Referring to fig. 1 to 3, the mounting box 1 has an air inlet 11 and an air outlet 12, an air passage 13 is provided in the mounting box 1, and the air passage 13 is communicated with both the air inlet 11 and the air outlet 12. The air suction type compound alarm further comprises an air suction unit 2, and the air suction unit 2 is arranged in the mounting box 1. When the air suction unit 2 works, negative pressure is formed in the air passage 13. Thus, the smoke and the dangerous gas in the air can be actively sucked into the mounting box 1 through the air suction unit 2, so that the smoke and the dangerous gas can enter the mounting box 1 early, and the smoke detection unit 3 and the dangerous gas detection unit 4 can detect the smoke and the dangerous gas early. Specifically, when the air intake unit 2 is in operation, air in the vicinity of the air intake unit 2 forms an air flow that enters the mounting box 1 from the air intake 11 and exits the mounting box 1 from the air outlet 12.

Some fumes are paroxysmal and do not last long. This paroxysmal smoke gradually dilutes during diffusion and dissipates over a short period of time. The source of such fumes is a safety hazard. Referring to fig. 2 and 3, in the air suction type composite alarm provided by the utility model, a smoke detection unit 3 and a dangerous gas detection unit 4 are sequentially arranged along the air flow direction. Thus, the air flow passes the smoke detection unit 3 first, so that the air flow enters the smoke detection unit 3 through a short path, which is advantageous for the detection of paroxysmal smoke by the smoke detection unit 3 before the concentration is excessively diluted. Furthermore, the inhalation unit 2 is capable of actively inhaling the paroxysmal smoke into the mounting box 1, which is also advantageous for the paroxysmal smoke to be detected by the smoke detection unit 3 before the concentration is excessively diluted.

In some embodiments, the smoke detection unit 3 is located close to the air inlet 11. Thus, smoke can enter the smoke detection unit 3 as early as possible, which is advantageous for paroxysmal smoke to be detected by the smoke detection unit 3 before the concentration is excessively diluted.

In some embodiments, the smoke detection unit 3 comprises a smoke detector. Thereby, the smoke detection unit 3 can detect the concentration of smoke particles in the air by the smoke detector.

Referring to fig. 2, in some embodiments, the number of the hazardous gas detection units 4 is at least two, wherein: at least one hazardous gas detection unit 4 is a methane detector 41 and at least one hazardous gas detection unit 4 is a carbon monoxide detector 42. Thus, the concentration of methane in the air can be detected by the methane detector 41 to prevent a fire caused by gas leakage; the concentration of carbon monoxide in the air may be detected by the carbon monoxide detector 42 to prevent a fire in which carbon monoxide is easily generated.

Referring to fig. 2, in some embodiments, the air duct 13 includes at least a first air chamber 131 and a second air chamber 132, the air inlet 11, the first air chamber 131, the second air chamber 132, and the air outlet 12 are sequentially connected, and at least two dangerous gas detecting units 4 are respectively located in the first air chamber 131 and the second air chamber 132. In this way, different hazardous gases can be detected in a targeted manner by different hazardous gas detection units 4. It should be noted that, when the air flows through the first air chamber 131 and the second air chamber 132, part of the air is temporarily buffered in the first air chamber 131 and the second air chamber 132, so that different dangerous air detection units 4 can detect different dangerous air in a targeted manner.

Referring to fig. 2, in some embodiments, in order to prevent a fire caused by gas leakage and a fire liable to generate carbon monoxide, the hazardous gas detection unit 4 located in the first gas chamber 131 is a methane detector 41, and the hazardous gas detection unit 4 located in the second gas chamber 132 is a carbon monoxide detector 42. Of course, in other embodiments, the positions of methane detector 41 and carbon monoxide detector 42 may be interchanged, namely: the hazardous gas detection unit 4 located in the first gas chamber 131 is a carbon monoxide detector 42, and the hazardous gas detection unit 4 located in the second gas chamber 132 is a methane detector 41.

Referring to fig. 1-3, in some embodiments, the air passage 13 is formed by an intake extension 133, an inhalation unit 2, a smoke detection unit 3, a first air chamber 131, and a second air chamber 132 in communication; the suction unit 2 may be a fan or a suction pump, and the specific configuration of the suction unit 2 is not limited to the above, and may be any configuration capable of sucking air.

Referring to fig. 1-3, in some embodiments, to facilitate installation of the air duct 13, the mounting box 1 is formed by splicing a front shell 15 and a rear shell 16. Wherein, the front shell 15 is provided with a first air inlet port 151 and a first air outlet port 152, and the rear shell 16 is provided with a second air inlet port 161 and a second air outlet port 162. The front shell 15 is covered on the rear shell 16 to be spliced to form the mounting box 1, the first air inlet sub-port 151 and the second air inlet sub-port 161 are spliced to form the air inlet 11, and the first air outlet sub-port 152 and the second air outlet sub-port 162 are spliced to form the air outlet 12.

Referring to fig. 2 and 3, in some embodiments, the air duct 13 is disposed in a U shape, an air inlet end of the air duct 13 is communicated with the air inlet 11, and an air outlet end of the air duct is communicated with the air outlet 12. In these embodiments, the air channel 13 includes a transverse portion in two rows and a longitudinal portion in one row that communicates the ends of the two rows of transverse portions. The smoke detection unit 3 and the hazard detection unit are arranged in two rows of transverse portions, respectively. Therefore, the structure of the air suction type composite alarm is compact, and the installation space occupied by the air suction type composite alarm during installation is reduced.

Referring to fig. 1 and 3, in some embodiments, the air-breathing composite alarm further includes an alarm unit 5 and a circuit board 6, the circuit board 6 is disposed in the mounting box 1, and the smoke detection unit 3, the hazardous gas detection unit 4, and the alarm unit 5 are all connected to the circuit board 6. The alarm unit 5 gives an alarm whenever one of the smoke detection unit 3 and the hazardous gas detection unit 4 detects that the concentration of the detection object is higher than the threshold value. If neither of them detects that the detected object concentration is higher than the threshold value, the alarm unit 5 does not issue an alarm.

Referring to fig. 3, in some embodiments, the alarm unit 5 includes a buzzer 51 connected to the circuit board 6, and the mounting box 1 is provided with a sound hole 14, where the sound hole 14 corresponds to the buzzer 51. Thereby, when the smoke detection unit 3 and/or the hazardous gas detection unit 4 detects that the concentration of the detection object is higher than the threshold value, the alarm unit 5 may sound an alarm through the buzzer 51.

Referring to fig. 1 and 3, in some embodiments, the alarm unit 5 includes at least two tri-colored lamps 52, the tri-colored lamps 52 are disposed through the mounting box 1, and the smoke detection unit 3 and the hazardous gas detection unit 4 are connected to different tri-colored lamps 52 through the circuit board 6. In some embodiments, the number of the dangerous gas detection units 4 is at least two, and each dangerous gas detection unit 4 corresponds to one tri-color lamp 52.

The three-color lamp 52 is capable of emitting light of three colors of red, yellow and green, and the three-color lamp 52 corresponding to the smoke detection unit 3 emits red light, yellow light and green light, respectively, in three cases where the smoke detection unit 3 detects that the concentration of smoke particles in the air is higher than the threshold value, the smoke detection unit 3 malfunctions, the smoke detection unit 3 is normal, and the concentration of smoke particles in the air is not detected to be higher than the threshold value. The operation of the tri-color lamp 52 corresponding to the hazardous gas detecting unit 4 is similar to that of the tri-color lamp 52 corresponding to the smoke detecting unit 3, and will not be described again. By observing the colors of the light emitted by the different tri-colored lamps 52, whether the smoke detection unit 3 and the dangerous gas detection unit 4 work normally or not can be known; when the buzzer 51 sounds an alarm, by observing the light emission color of the tri-color lamp 52, it is possible to know which one or more of the smoke detection unit 3, the hazardous gas detection unit 4 has a detection object concentration higher than a threshold value, so that the user can take corresponding countermeasures with pertinence.

Referring to fig. 3, in some embodiments, the air-breathing composite alarm further includes a filter screen 7 disposed in the air duct 13, and the filter screen 7 and the smoke detection unit 3 are disposed in sequence along the airflow direction. From this, filter screen 7 can filter large granule impurity and worm in the air to prevent that large granule impurity and worm from piling up in air flue 13, smoke detection unit 3 and dangerous gas detection unit 4, and then prevent that large granule impurity and worm from blockking up air flue 13, disturbing smoke detection unit 3 work, disturbing dangerous gas detection unit 4 work.

It is worth mentioning that the smoke generated by fire and the methane and carbon monoxide in the fuel gas accumulate at the top, upper part and middle upper part of the room respectively. In the prior art, in order to detect smoke, methane and carbon monoxide, a smoke detector, a methane detector and a carbon monoxide detector are required to be respectively installed at the top, the upper part and the middle part of a room, and the smoke detector, the methane detector and the carbon monoxide detector are required to be installed for a plurality of times. In the utility model, the smoke detection unit 3, the methane detector 41 and the carbon monoxide detector 42 are integrated in the same mounting box 1, and the air suction unit 2 can actively suck smoke, methane and carbon monoxide into the mounting box 1, so that the smoke, the methane and the carbon monoxide can be detected at the same time, only one-time mounting is needed, and the cost can be reduced.

Illustratively, the air-breathing composite alarm is mounted in the upper portion of the room.

It is understood that the air-breathing composite alarm can be applied to the scenes of families, restaurants, hotels and the like. In these applications, the air-breathing composite alarm may be installed in a room or in another space of a building, for example: corridor, hall, vestibule. The application scene of the air-breathing composite alarm is not limited to the above, and any scene suitable for the application of the air-breathing composite alarm may be used.

In the above embodiment, the construction and operation of the smoke detector, the methane detector 41 and the carbon monoxide detector 42 are prior art, and will not be described here.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. The air suction type composite alarm is characterized by comprising a mounting box (1), an air suction unit (2), a smoke detection unit (3) and a dangerous gas detection unit (4); the mounting box (1) is provided with an air inlet (11) and an air outlet (12), an air passage (13) communicated with the air inlet (11) and the air outlet (12) is arranged in the mounting box (1), and the air suction unit (2) is arranged in the mounting box (1) to form negative pressure in the air passage (13); and the smoke detection unit (3) and the dangerous gas detection unit (4) are sequentially arranged along the airflow flowing direction.

2. The aspiration type compound alarm device according to claim 1, wherein the air passage (13) comprises at least a first air chamber (131) and a second air chamber (132), the air inlet (11), the first air chamber (131), the second air chamber (132) and the air outlet (12) are sequentially communicated, and at least two dangerous gas detection units (4) are respectively located in the first air chamber (131) and the second air chamber (132).

3. The aspiration type composite alarm according to claim 2, wherein the hazardous gas detection unit (4) located in the first air chamber (131) is a methane detector (41), and the hazardous gas detection unit (4) located in the second air chamber (132) is a carbon monoxide detector (42);

alternatively, the hazardous gas detection unit (4) located in the first air chamber (131) is a carbon monoxide detector (42), and the hazardous gas detection unit (4) located in the second air chamber (132) is a methane detector (41).

4. The aspiration type composite alarm device according to claim 1, wherein the installation box (1) comprises a front shell (15) and a rear shell (16), a first air inlet sub-port (151) and a first air outlet sub-port (152) are arranged on the front shell (15), a second air inlet sub-port (161) and a second air outlet sub-port (162) are arranged on the rear shell (16), the front shell (15) is covered on the rear shell (16), and the first air inlet sub-port (151) and the first air outlet sub-port (152) are spliced into the air inlet (11); the second air inlet sub-port (161) and the second air outlet sub-port (162) are spliced into the air outlet (12).

5. The aspiration type compound alarm according to claim 1, wherein the number of dangerous gas detection units (4) is at least two, wherein: at least one of the hazardous gas detection units (4) is a methane detector (41), and at least one of the hazardous gas detection units (4) is a carbon monoxide detector (42).

6. The aspiration type compound alarm device according to claim 1, wherein the air passage (13) is provided in a U-shape, an air inlet end of the air passage is communicated with the air inlet (11), and an air outlet end of the air passage is communicated with the air outlet (12).

7. The aspiration type compound alarm according to claim 1, further comprising an alarm unit (5) and a circuit board (6) arranged in the mounting box (1), wherein the smoke detection unit (3), the hazardous gas detection unit (4) and the alarm unit (5) are all connected to the circuit board (6).

8. The aspiration type compound alarm according to claim 7, wherein the alarm unit (5) comprises a buzzer (51) connected to the circuit board (6), and the installation box (1) is provided with a sound outlet hole (14), and the sound outlet hole (14) corresponds to the buzzer (51).

9. The aspiration type compound alarm according to claim 7, wherein the alarm unit (5) comprises at least two tri-colored lamps (52), the tri-colored lamps (52) are arranged through the mounting box (1), and the smoke detection unit (3) and the dangerous gas detection unit (4) are connected to different tri-colored lamps (52) through the circuit board (6).

10. The aspiration type compound alarm according to claim 1, further comprising a filter screen (7) arranged in the air passage (13), wherein the filter screen (7) and the smoke detection unit (3) are arranged in sequence along the flow direction of the air flow.