CN216562041U

CN216562041U - Air suction type smoke fire detector

Info

Publication number: CN216562041U
Application number: CN202122553546.8U
Authority: CN
Inventors: 李铁成
Original assignee: Heilongjiang Dingyuan Fire Protection Technology Co ltd
Current assignee: Heilongjiang Dingyuan Fire Protection Technology Co ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-05-17
Anticipated expiration: 2031-10-22

Abstract

The utility model relates to the technical field of fire detectors and discloses an air-breathing smoke-sensing fire detector which comprises a protective shell, wherein a gas collecting box is movably connected to the inner wall of the rear side of the protective shell, three gas inlet pipes are fixedly connected to the middle part of the gas collecting box, a first connecting pipe is fixedly connected to the upper end of the middle part of the gas collecting box, an installation pipe is in threaded connection with the upper end of the outer surface of the first connecting pipe, a second connecting pipe is in threaded connection with the inner surface of the installation pipe, a first fan is fixedly connected to the middle part of the second connecting pipe, and a protection box is fixedly connected to the left end of the outer surface of the second connecting pipe. According to the utility model, the gas collecting box, the gas inlet pipe, the first connecting pipe, the mounting pipe, the second connecting pipe and the protection box are arranged in the protection shell, so that the protection box and the gas collecting box can be conveniently replaced, and waste chips generated by object combustion can be prevented from entering the gas inlet pipe through the structure provided with the first protective net.

Description

Air suction type smoke fire detector

Technical Field

The utility model relates to the technical field of fire detectors, in particular to an air suction type smoke-sensing fire detector.

Background

An air suction type smoke fire detector is an automatic fire alarm device which sucks air in a protection area into the detector through an air sampling pipe for analysis so as to early warn a fire. Generally, a long-life laser light source is used as a detection light source, smoke particle detection is carried out by using a light scattering technology, and false alarm prevention and smoke particle identification are realized by an auxiliary network technology. Compared with the traditional smoke-sensing detection product, the air-breathing smoke-sensing fire detector has the advantages of high detection sensitivity, convenience in installation and layout, large coverage area of a smoke-sensing network formed after installation, low false alarm rate and capability of realizing the function of early fire detection and alarm. The air suction type smoke fire detector is an active detection system, can not only find fire in time in a common environment, but also actively detect sample air in a high space and a high-speed airflow place which cannot be protected by a conventional detector and a place which cannot be approached by people, so that the air suction type smoke fire detector is more and more widely applied to the modern society.

The formula of breathing in smoke fire detector that has disclosed in chinese granted utility model patent application publication No. CN209691068U, but present formula of breathing in smoke fire detector when inhaling smog, has debris that debris and object burnt and is inhaled, leads to the jam of intake pipe to reduce the efficiency of response, present smoking is slower with the speed of discharging fume moreover, influences the normal work of inductor.

We have therefore proposed a smoke-sensitive fire detector of the aspirating type to solve the problems set out above.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In view of the defects of the prior art in the background art, an object of the present invention is to provide an air-breathing smoke-sensing fire detector, so as to solve the problems that some air-breathing smoke-sensing fire detectors in the market proposed in the background art block an air inlet pipe due to the fact that debris and combustion scraps of objects are sucked when smoke is sucked, and thus the sensing efficiency is reduced, and the normal operation of a sensor is affected due to the fact that the current smoking and smoke discharging speeds are slow.

(II) technical scheme

In order to achieve the purpose, the utility model is realized by the following technical scheme:

an air-breathing smoke-sensing fire detector comprises a protective shell, wherein a gas collecting box is movably connected to the inner wall of the rear side of the protective shell, three air inlet pipes are fixedly connected to the middle of the gas collecting box, a first connecting pipe is fixedly connected to the upper end of the middle of the gas collecting box, an installing pipe is in threaded connection with the upper end of the outer surface of the first connecting pipe, a second connecting pipe is in threaded connection with the inner surface of the installing pipe, a first fan is fixedly connected to the middle of the second connecting pipe, a protection box is fixedly connected to the left end of the outer surface of the second connecting pipe, a smoke-sensing detector is fixedly connected to the inside of the protection box, a placing hole is formed in the upper portion of the left side of the protective shell, an exhaust structure is arranged inside the placing hole, and the exhaust structure is composed of a second protective net and a second fan;

the air outlet has been seted up in the left side of guard box, the through-hole has been seted up to the interior diapire left end of protective housing, the internal surface fixedly connected with alarm of through-hole.

Preferably, the inner wall of the left side of the protective shell is fixedly connected with a supporting plate, and the top of the supporting plate is in contact connection with the bottom of the protective box.

Preferably, three connecting holes are formed in the right end of the inner bottom wall of the protective shell, and the inner surface of each connecting hole is connected with the outer surface of the corresponding air inlet pipe in a sliding mode.

Preferably, a first protective net is fixedly mounted at the right end of the bottom of the protective shell through a bolt, and the lower end of the air inlet pipe is located inside the first protective net.

Furthermore, the outer surface of the second protective net is fixedly connected with the left end of the inner surface of the placing hole, and the left side of the second protective net is flush with the left side of the protective shell.

Further, the outer surface of the second fan is fixedly connected with the inner surface of the placing hole, and the left side of the second fan is in contact connection with the right side of the second protective net.

(III) advantageous effects

Compared with the prior art, the utility model has the beneficial effects that:

(1) through the structure that is provided with gas collection box, intake pipe, first connecting pipe, installation pipe, second connecting pipe and guard box in the protective housing, can be convenient for change guard box and gas collection box, through the structure that is provided with first protection network, can prevent that the sweeps of object burning from getting into the inside of intake pipe.

(2) Through the structure that is provided with second protection network, second fan and venthole on protecting crust and guard box, can accelerate the exhaust velocity to the flue gas in the guard box, improve the detection efficiency of smoke detector.

Drawings

FIG. 1 is a schematic view of the internal structure of the suction type smoke fire detector of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1 of the aspirating smoke fire detector of the present invention;

fig. 3 is a perspective view illustrating a fire detector mounting tube of the air-breathing type smoke fire detector according to the present invention.

In the figure: 1. a protective shell; 2. a gas collection box; 3. an air inlet pipe; 4. connecting holes; 5. a first protection net; 6. a first connecting pipe; 7. installing a pipe; 8. a second connecting pipe; 9. a first fan; 10. a protection box; 11. a smoke detector; 12. placing holes; 13. an exhaust structure; 1301. a second protective net; 1302. a second fan; 14. an air outlet; 15. a support plate; 16. a through hole; 17. an alarm.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides an air-breathing smoke fire detector; the smoke detector comprises a protective shell 1, a gas collecting box 2 is movably connected to the inner wall of the rear side of the protective shell 1, three gas inlet pipes 3 are fixedly connected to the middle of the gas collecting box 2, a first connecting pipe 6 is fixedly connected to the upper end of the middle of the gas collecting box 2, a mounting pipe 7 is in threaded connection with the upper end of the outer surface of the first connecting pipe 6, a second connecting pipe 8 is in threaded connection with the inner surface of the mounting pipe 7, a first fan 9 is fixedly connected to the middle of the second connecting pipe 8, a protective box 10 is fixedly connected to the left end of the outer surface of the second connecting pipe 8, the second connecting pipe 8 is located inside the protective box 10, the rear side of the protective box 10 is in contact connection with the inner wall of the rear side of the protective shell 1, a smoke detector 11 is fixedly connected to the inside of the protective box 10, a placing hole 12 is formed in the upper portion of the left side of the protective shell 1, an exhaust structure 13 is arranged in the placing hole 12, and the exhaust structure 13 is composed of a second protective net 1301 and a second fan 1302;

an air outlet 14 is formed in the left side of the protection box 10, the air outlet 14 is positioned right of the placing hole 12, a through hole 16 is formed in the left end of the inner bottom wall of the protection shell 1, and an alarm 17 is fixedly connected to the inner surface of the through hole 16;

as a preferred technical scheme of the utility model: the inner wall of the left side of the protective shell 1 is fixedly connected with a supporting plate 15, and the top of the supporting plate 15 is in contact connection with the bottom of the protective box 10;

as a preferred technical scheme of the utility model: the right end of the inner bottom wall of the protective shell 1 is provided with three connecting holes 4, and the inner surfaces of the connecting holes 4 are in sliding connection with the outer surface of the air inlet pipe 3;

as a preferred technical scheme of the utility model: a first protective net 5 is fixedly installed at the right end of the bottom of the protective shell 1 through bolts, and the lower end of the air inlet pipe 3 is positioned inside the first protective net 5;

as a preferred technical scheme of the utility model: the outer surface of the second protective net 1301 is fixedly connected with the left end of the inner surface of the placing hole 12, and the left side of the second protective net 1301 is flush with the left side of the protective shell 1;

as a preferred technical scheme of the utility model: the outer surface of the second fan 1302 is fixedly connected to the inner surface of the placement hole 12, and the left side of the second fan 1302 is connected to the right side of the second protection net 1301 in a contact manner.

The working principle of the embodiment is as follows: when the smoke protection device is used, the first fan 9 and the second fan 1302 are started, smoke is sucked into the protection box 10 through the air inlet pipe 3 by the first fan 9, then when the smoke in the protection box 10 is sucked out of the protection shell 1 by the second fan 1302, the smoke passes through the smoke detector 11, the smoke detector 11 controls the alarm 17 to give an alarm, so that the working process of the whole smoke protection device is the working process of the whole smoke protection device, and the content which is not described in detail in the specification belongs to the prior art which is known by technicians in the field.

Although the present invention has been described in detail with reference to the foregoing embodiments, it should be noted that, in the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, may be fixedly connected or detachably connected; or indirectly through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations; it will be apparent to those skilled in the art that modifications and equivalents may be made in the embodiments and/or portions thereof without departing from the spirit and scope of the present invention.

Claims

1. The air suction type smoke fire detector comprises a protective shell (1) and is characterized in that a gas collecting box (2) is movably connected to the inner wall of the rear side of the protective shell (1), three air inlet pipes (3) are fixedly connected to the middle of the gas collecting box (2), a first connecting pipe (6) is fixedly connected to the upper end of the middle of the gas collecting box (2), an installation pipe (7) is connected to the upper end of the outer surface of the first connecting pipe (6) in a threaded mode, a second connecting pipe (8) is connected to the inner surface of the installation pipe (7) in a threaded mode, a first fan (9) is fixedly connected to the middle of the second connecting pipe (8), a protection box (10) is fixedly connected to the left end of the outer surface of the second connecting pipe (8), a smoke detector (11) is fixedly connected to the inside of the protection box (10), and a placement hole (12) is formed in the upper portion of the left side of the protective shell (1), an exhaust structure (13) is arranged inside the placing hole (12), and the exhaust structure (13) is composed of a second protective net (1301) and a second fan (1302);

venthole (14) have been seted up in the left side of guard box (10), through-hole (16) have been seted up to the inner diapire left end of protective housing (1), the internal surface fixedly connected with alarm (17) of through-hole (16).

2. Air-breathing smoke-sensing fire detector according to claim 1, characterised in that a support plate (15) is fixedly connected to the left inner wall of the protective casing (1), the top of said support plate (15) being in contact connection with the bottom of the protective casing (10).

3. The air-breathing smoke-sensing fire detector as claimed in claim 1, wherein the right end of the inner bottom wall of the protective shell (1) is provided with three connecting holes (4), and the inner surface of each connecting hole (4) is slidably connected with the outer surface of the air inlet pipe (3).

4. The air-breathing smoke-sensing fire detector as claimed in claim 1, wherein a first protective net (5) is fixedly mounted at the right end of the bottom of the protective shell (1) through bolts, and the lower end of the air inlet pipe (3) is positioned inside the first protective net (5).

5. The air-breathing smoke fire detector as claimed in claim 1, wherein the outer surface of the second protection net (1301) is fixedly connected with the left end of the inner surface of the placing hole (12), and the left side of the second protection net (1301) is flush with the left side of the protective case (1).

6. The air-breathing smoke fire detector as claimed in claim 1, wherein an outer surface of said second fan (1302) is fixedly connected with an inner surface of said placing hole (12), and a left side of said second fan (1302) is in contact connection with a right side of said second protection net (1301).