JP6775074B2 - Smoke detector - Google Patents

Description

The present invention relates to a portable and usable high-sensitivity smoke detection device that optically detects and warns a minute smoke concentration by irradiating smoke particles contained in air sucked from a monitoring area with a laser beam.

Conventionally, a high-sensitivity smoke detection device for detecting minute smoke has been used in a computer room in which a server or the like is installed or a clean room in a semiconductor manufacturing facility or the like. This high-sensitivity smoke detector sucks air from a sampling tube installed in the monitoring area and optically detects the number of particles suspended in the air using laser light to obtain a minute smoke concentration. , An alarm is output when the smoke concentration exceeds a predetermined threshold.

In addition to the fixed-installation type smoke detection device that sucks air from the sampling tube, a portable smoke detection device with a suction nozzle attached to the tip of the hose is installed in the monitoring area such as a computer room or clean room. In this case, the person in charge is moving the smoke detection device and sucking the air in the place where confirmation is required by the suction nozzle to check the smoke concentration.

Such a portable smoke detector has the advantage that it is not necessary to fixedly install a sampling pipe in the monitoring area, and it is possible to check the smoke concentration while moving from place to place as needed. For example, it is used in combination with a fixed-installation type smoke detector that installs a sampling tube and sucks air in the monitoring area.

Japanese Unexamined Patent Publication No. 2004-07807 US Patent Application Publication No. 2006/0220886 Japanese Unexamined Patent Publication No. 2006-162322 JP-A-2010-017378 Japanese Patent Application Laid-Open No. 06-036166

However, in such a conventional portable smoke detection device, the same smoke detection device as the fixed installation type smoke detection device in which a sampling tube is installed to suck air in the monitoring area is used, and the smoke detection device is used. With the hose with a suction nozzle connected to the suction port of, for example, put it on a trolley etc. and move it to the required place, where air is sucked from the suction nozzle at the tip of the hose to detect the smoke concentration. Since the suction location by the suction nozzle and the smoke detection device provided with the smoke concentration display unit are separated from each other, there is a problem that it is difficult to check the smoke concentration display while sucking.

In addition, when sucking while moving the place, suction start and suction stop may be repeated by operating the power switch provided on the smoke detection device side, and the power switch is turned on on the smoke detection device side away from the suction place. Since it is necessary to operate it, there is also a problem that it is difficult to perform the work of sucking while operating it.

In addition, in the case of a portable smoke detection device, a rechargeable secondary battery is provided as a power source, and a charging device for charging the secondary battery is required, which is more than a stationary smoke detection device. As a result, the size and weight of the battery increase, which makes it difficult to operate while moving.

The present invention provides a portable, highly sensitive smoke detection device that enables the operation of the device and the display confirmation of the smoke concentration at the hand of operating the suction nozzle that sucks air, and improves workability and operability. The purpose is.

(Smoke detector)
The present invention relates to a smoke detection device.
The main body of the device that notifies an alarm based on the smoke concentration of the air sucked from the suction port,
The holder is provided with handles arranged substantially in parallel, a suction nozzle with a suction port opened at the tip is provided at one end of the holder, and a detachable hose is provided at the suction port of the device body at the other end of the holder. With a hand-held suction nozzle device
Consists of
The holder of the suction nozzle device is provided with a smoke concentration display unit for displaying the smoke concentration detected by the main body of the device so as to be arranged near the side of the handle.

(Alarm notification unit)
The main body of the device is provided with an alarm notification unit that notifies an alarm based on the smoke concentration.

(Separate structure of main unit)
The main body of the device is separated into a portable main body and a stationary main body, and the portable main body is separated from the stationary main body and arranged so as to be portable.
A suction unit that sucks air from the suction port, a smoke detection unit that detects the smoke concentration of the air sucked from the suction port, and a smoke concentration detected by the smoke detection unit on the smoke concentration display of the suction nozzle device A transmission unit for transmitting and displaying, an alarm notification unit for notifying an alarm based on smoke concentration, a suction unit, a smoke detection unit, a control unit for controlling the transmission unit and the alarm notification unit, and a power supply unit having a secondary battery are provided.
A power supply unit that converts the AC voltage of a commercial AC power supply into a predetermined DC voltage and outputs it to the stationary main unit, a spare battery power supply unit that supplies power in the event of a power failure of the commercial AC power supply, and a portable main unit by connecting a charging plug cable. A charging unit for charging the secondary battery and a power switch are provided.

(Position of hose connection port)
The portable main body is detachably equipped with a shoulder hanger belt used when the user checks the smoke concentration while carrying it, and the portable main body is located on the front side surface when the user carries the portable main body with the shoulder hanger belt. A hose connection port for connecting the hose of the suction nozzle device is provided.

(L-shaped head of suction nozzle device)
The suction nozzle device is provided with a removable L-shaped head at the tip of the suction pipe.

(Expansion and contraction of suction pipe)
The suction pipe of the suction nozzle device can be expanded and contracted.

(Power switch of suction nozzle device)
A power switch for operating the main body of the suction nozzle device is provided in the holder portion of the device.

(Fan switch that turns the suction fan on and off)
The holder of the suction nozzle device is provided with a fan switch that turns on and off the suction fan that sucks air from the suction port provided in the device body.

(Basic effect)
The smoke detection device of the present invention is provided with a device main body that notifies an alarm based on the smoke concentration of air sucked from the suction port and a suction pipe having a suction port at the tip at one end of a holder portion provided with a handle. It consists of a hand-held suction nozzle device with a detachable hose at the suction port of the device body at the other end of the holder part, and the smoke concentration that displays the smoke concentration detected by the device body on the holder part of the suction nozzle device. Since the display unit is provided, the staff member carries the device body while holding the handle of the holder part of the suction nozzle device connected to the device body with a hose and installing it in the holder part at hand while sucking air with the suction pipe. You can check the smoke concentration by looking at the smoke concentration display, improving the workability of high-sensitivity smoke detection work performed while moving from place to place, and easily and easily move to the required place in the caution area. The smoke concentration is detected with high sensitivity, and the smoke caused by the fire is detected at the initial stage, enabling appropriate countermeasures.

(Effect of the separated structure of the main unit)
In addition, the device main body is separated into a portable main body and a stationary main body, and the portable main body is separated from the stationary main body and arranged so as to be portable, and air is sucked into the portable main body from a suction port. Based on the suction unit, the smoke detection unit that detects the smoke concentration of the air sucked from the suction port, the transmission unit that transmits and displays the smoke concentration detected by the smoke detection unit to the smoke concentration display unit of the suction nozzle device, and the smoke concentration. An alarm notification unit that notifies an alarm, a suction unit, a smoke detection unit, a transmission unit, a control unit that controls the alarm notification unit, and a power supply unit having a secondary battery are provided, and an AC voltage of a commercial AC power supply is specified in the stationary main body unit. Power supply unit that converts to DC voltage and outputs, spare battery power supply unit that supplies power in the event of a commercial AC power supply failure, charging unit that charges the secondary battery of the portable main unit by connecting the cable of the charging plug, and power switch Therefore, it is not necessary to provide a power supply unit for connecting a commercial AC power supply, a spare battery power supply unit, and a charging unit in the portable main unit, and the portable main unit used while being carried is made smaller and lighter by that amount. It makes it possible to improve the workability of smoke detection, which is performed by sucking air while carrying it.

(Effect of the position of the hose connection port)
In addition, the portable main body is provided with a detachable shoulder hanger belt that is used when the user checks the smoke concentration while carrying it, and the position that becomes the front side surface when the user carries the portable main body with the shoulder hanger belt. Since a hanger connection port for connecting the hanger of the suction nozzle device is provided, the operator can carry the portable main body on his shoulder and go to an appropriate place where smoke detection is required to obtain a minute smoke concentration. Is detected and a fire is detected at an early stage so that appropriate measures can be taken.

In addition, by connecting the hose from the suction nozzle device to the hose connection port provided at the position on the front side when the user carries the portable main body with the shoulder hanger belt, the suction pipe can be directed in various directions. The hose does not twist even when the suction operation is performed, and it can be easily handled.

(Effect of L-shaped head of suction nozzle device)
Further, since the suction nozzle device is provided with a detachable L-shaped head at the tip of the suction pipe, it is possible to reliably suck air in a deep place such as a corner of a monitoring area and check the smoke concentration.

(Effect of expansion and contraction of suction pipe)
In addition, since the suction pipe of the suction nozzle device can be expanded and contracted, the suction pipe is extended when the place where air is sucked is far, and the suction pipe is shortened when it is close, so that air is sucked according to the place where the smoke concentration is to be checked. It is possible to easily perform the operation to be performed.

(Effect of power switch of suction nozzle device)
In addition, since the holder of the suction nozzle device is provided with a power switch that operates the device body, it is possible to easily operate and stop the device body by operating the power switch on the suction device side that you have, improving operability. Make it possible.

(Effect of fan switch that turns the suction fan on and off)
In addition, the holder of the suction nozzle device is provided with a fan switch that turns on and off the suction fan that sucks air from the suction port provided in the device body, so when the staff moves, the fan switch can be turned off. It is possible to stop the suction fan and turn on the fan switch only at the point where you want to measure to perform suction, and operate the suction fan only when necessary, so it is possible to reduce battery consumption. In addition, in the control to turn on and off the power of the entire smoke detection device by the power switch, it takes time to be able to measure due to the initial operation when the power is turned on, but according to the fan switch of the suction fan, the fan switch is turned on. By operating the suction fan, the smoke concentration can be measured immediately.

(Effect of the alarm notification unit of the suction nozzle device)
In addition, since the holder of the suction nozzle device is provided with an alarm notification unit that notifies an alarm when the smoke concentration exceeds a predetermined threshold, the suction nozzle device that is on hand provides an alarm display and / or an alarm notification by an alarm sound. Is performed, and it is possible to reliably know the increase in smoke concentration.

Explanatory drawing showing the configuration of the portable main body and the suction nozzle device in the smoke detection device. Explanatory drawing showing the plane, side surface and bottom surface of the portable main body in the smoke detection device. Explanatory drawing showing by taking out the alarm notification part provided in the portable main body part Explanatory drawing showing the storage state of the smoke detection device Explanatory drawing which showed the structure of the stationary main body part of a smoke detection device Block diagram showing the functional configuration of the smoke detector

[Outline of smoke detection device]
FIG. 1 is an explanatory view showing the configuration of a portable main body and a suction nozzle device in a smoke detection device, and FIG. 1 (A) shows a state in which the suction nozzle device is connected to the portable main body, and FIG. 1 (B) ) Indicates the side surface of the suction nozzle device. FIG. 2 is an explanatory view showing a plane (A), a left side surface (B), a right side surface (C), and a bottom surface (D) of the portable main body portion of the smoke detection device, and FIG. 3 is an alarm provided on the portable main body portion. An explanatory view showing the notification unit taken out, FIG. 4 is an explanatory view showing the storage state of the smoke detection device, and FIG. 5 is an explanatory view showing the configuration of the stationary main body of the smoke detection device, FIG. 5A. Shows a plane, and FIG. 5B shows a front surface.

As shown in FIG. 4, the smoke detection device 10 of the present embodiment includes a portable main body 12 and a stationary main body 14 whose main body can be separated, and as shown in FIG. 1, the portable main body 12 is formed. On the other hand, the suction nozzle device 16 is detachably connected by the hose 24.

(Configuration of suction nozzle device)
The suction nozzle device 16 of FIG. 1A shows a plane thereof, a suction pipe 26 is connected to the tip side of a holder portion 18 provided with a handle 20, and a suction port 28 is opened at the tip of the suction pipe 26. There is. A flexible hose 24 is connected to the rear end side of the holder portion 18. The suction pipe 26 has an inner diameter of, for example, about 16 mm, and a length of, for example, about several tens of centimeters.

The hose 24 has, for example, an inner diameter of about 20 mm and a length of about 2 meters, and is spirally wound around a covering portion of the hose 24 to pass a signal line having a predetermined number of core wires. Therefore, the holder portion 18 is connected to the electric connector of the signal line at the same time as the hose 24 is connected.

Further, a smoke concentration display unit 32 for displaying the smoke concentration by a bar graph is provided next to the holder unit 18. In addition to the bar graph display, the smoke concentration display unit 32 may display the smoke concentration numerically or display it with an indicator.

FIG. 1B shows the side surface of the suction nozzle device 16, and further, an L-shaped head 30 is detachably provided at the tip of the suction pipe 26. The suction port 30a at the tip of the L-shaped head 30 is located in a direction orthogonal to the suction pipe 26, and reliably sucks air in a deep place such as a corner of a device installed in a monitoring area to obtain a smoke concentration. It is possible to investigate.

(Structure of portable main body)
As shown in FIGS. 1 and 2, the portable main body portion 12 is composed of a box-shaped housing 12a and a lid portion 12b, and the lid portion 12b is provided on the housing 12a so as to be openable and closable by a hinge 13. In the used state, it is locked in the closed state by the snap lock 45.

A connection port 35 that functions as a suction port is provided on the right side surface of the portable main body portion 12, and the hose 24 of the suction nozzle device 16 is detachably connected to the connection port 35. Belt mounting parts 47 are provided on the upper left and right sides of the portable main body portion 12, and by wearing a shoulder hanger belt, the staff needs to detect smoke while carrying the portable main body portion 12 on their shoulders. It is possible to go to an appropriate place to detect minute smoke concentration.

Therefore, when the clerk carries the portable main body 12 on his shoulder with a shoulder hanger belt and performs the work of detecting smoke, the hose connection port 35 provided on the right side of the portable main body 12 is located in front of the clerk. Then, in this state, the handle 20 of the suction nozzle device 16 is held and the suction pipe 26 is directed to the place where the smoke concentration is to be checked, but the hose connection port 35 is in front of the staff in response to the movement of the hose 24 at this time. Since it is located, the hose 24 does not twist, and the suction pipe 26 can be easily handled.

Further, a handle 48 used for carrying is provided on the upper part of the portable main body portion 12. Further, the portable main body 12 stores a rechargeable secondary battery as a battery power source, and the staff can carry out the smoke detection work while carrying the portable main body 12 on his shoulder.

A power switch 44 is provided on the upper portion of the housing 12a provided on the portable main body portion 12, and an alarm notification unit 42 and a reset switch 46 are provided on the surface of the lid portion 12b. Further, an exhaust port 36 is provided on the bottom surface of the portable main body portion 12.

As shown in an enlarged manner in FIG. 3, the alarm notification unit 42 is provided with a caution light 77, a warning light 78, and a warning light 80 in response to an increase in smoke concentration. Further, a power supply light 82 indicating power supply, a failure representative light 84 indicating the occurrence of a failure, and a suction check light 86 indicating clogging of the suction system are provided.

Further, a battery connector 37 and a display connector 38 are provided on the upper side of the hose connector 35 of the portable main body 12. A charging plug 52 of the stationary main body 14 shown in FIG. 5 is connected to the battery connector 37 to charge a built-in secondary battery such as lithium ion. When the display cord 40 is plug-connected to the display connector 38 and the hose 24 of the suction nozzle device 16 is connected to the hose connection port 35, the display cord 40 is connected to the signal line in the hose 24 to obtain smoke concentration. The display signal can be transmitted to the display unit 32.

The portable main body 12 sucks the air sucked from the suction port 28 of the suction nozzle device 16 by a suction fan provided in the suction unit in the housing via the hose 24 and exhausts the air from the exhaust port 36. By passing air through a smoke detection unit with built-in air, the light receiving element detects and counts the scattered light generated when smoke particles pass through the smoke detection point where the laser light is condensed, and counts the number of smoke particles. The smoke concentration is detected in the range of 0.001% / m to 5% / m based on the count number corresponding to the above, and the smoke concentration display unit 32 provided in the suction nozzle device 16 displays the bar cluff, and the detected smoke concentration is also displayed. When it is determined that the value exceeds a predetermined threshold value set in advance, the caution light 77, the warning light 78, and the warning light 80 of the alarm notification unit 42 are sequentially turned on or blinked according to the increase in smoke concentration, and an alarm sound is emitted. Is output to notify smoke detection.

(Structure of stationary body)
As shown in FIG. 4, when the smoke detection device 10 is stored, the portable main body 12 is placed on the stationary main body 14 and integrated.

As shown in FIG. 5, the stationary main body 14 is provided with a power switch 50 on the upper left side, a charging plug 52 that can be pulled out to the outside and connected to the portable main body 12, and a preliminary charging plug 54. ing.

Further, the stationary main body portion 14 has a spare battery storage portion 58 in the door that can be opened and closed on the upper right side, and a power cord having a spare battery (secondary battery) and an AC plug constituting the spare battery power supply portion therein. Is stored.

In the storage state of the smoke detection device 10, the power cord is pulled out from the stationary main body 14 and its AC plug is connected to the commercial power outlet, and the charging plug 52 with the cord is pulled out and the battery connector 37 of the portable main body 12 is pulled out. Connect to and charge the trickle of the secondary battery. Therefore, during storage of the smoke detection device 10, the secondary battery provided in the portable main body 12 is constantly charged, and by connecting the hose 24 of the suction nozzle device 16 to the portable main body 12, the hose 24 is connected. It is possible to check the smoke concentration at any time as needed.

The smoke detection device 10 can store the portable main body 12, the stationary main body 14, and the suction nozzle device 16 in, for example, a carry bag, and a plurality of computer rooms and clean rooms provided in the facility can be used as a carry bag. It is possible to store and carry it, and take it out from the carry bag in each section to perform smoke detection work.

[Functional configuration of smoke detector]
FIG. 6 is a block diagram showing a functional configuration of the smoke detection device.

(Functional configuration of the portable main body)
As shown in FIG. 6, the portable main body unit 12 includes a control unit 60, a smoke detection unit 62, a suction unit 64, a transmission unit 66, a power switch 44, a reset switch 46, an alarm notification unit 42, and an operation display unit 68. And the battery power supply unit 70 is provided.

The control unit 60 is composed of a CPU, a memory, a computer circuit having various input / output ports and the like as hardware, and performs smoke detection control by executing a program by the CPU.

The smoke detection unit 62 forms a laser beam with the air flow of air sucked from the suction port to form a smoke detection point of about 1 micrometer, and scattered light generated when smoke particles pass through this smoke detection point. Is received by a photodiode arranged parallel to the direction of the electric field component E of the laser light, a detection pulse is output and counted, and a minute smoke concentration is detected and output by this count number.

The suction unit 64 includes a suction fan driven by a motor, and sucks air containing smoke particles from the suction nozzle device 16 by rotating the suction fan, passes the smoke detection unit 62, and exhausts the air from the exhaust port 36. ing. The transmission unit 66 transmits a signal to transmit the smoke concentration detection signal to the suction nozzle device 16.

The power switch 44 turns on / off the power supply by the battery power supply unit 70 to start / stop the smoke detection operation. The reset switch 46 is operated when returning the smoke detection device to the normal state.

The control unit 60 generates a smoke concentration display signal based on the smoke concentration detected by the smoke detection unit 62, instructs the transmission unit 66 to transmit the smoke concentration to the smoke concentration display unit 32 of the suction nozzle device 16, and bargraphs the smoke concentration. Control the display with.

Here, the display of the smoke concentration display unit 32 by the control unit 60 is 0.005 to 0.1% / m, 0.01 to 0.2% / m, 0.025 to 0.5% / m, 0. It is possible to select and switch between four ranges of .25 to 5.0% / m for display. This range switching is performed by switching the switch of the operation display unit 68, but if necessary, a display indicating the current switching range may be performed.

Further, the control unit 60 controls the alarm notification unit 42 to instruct and display an alarm when the smoke concentration detected by the smoke detection unit 62 exceeds a predetermined threshold value. Here, as shown in FIG. 3, the alarm notification unit 42 is provided with a three-stage indicator light of a caution light 77, a warning light 78, and a warning light 80, and sequentially responds to an increase in smoke concentration. Lights selectively.

The battery power supply unit 70 includes a secondary battery such as a lithium ion battery, and has a battery capacity of, for example, about 0.5 Ah.

(Functional configuration of the stationary body)
The stationary main body portion 14 is provided with a power supply circuit unit 72, a charging unit 74, and a spare battery power supply unit 76.

The power supply circuit unit 72 inputs a commercial AC 100 volt by connecting the AC plug 56 to an AC outlet, converts it into a predetermined DC voltage by rectification smoothing, and outputs it. The charging unit 74 performs trickle charging of a secondary battery such as a lithium ion battery provided in the battery power supply unit 70 in a state of being connected to the battery power supply unit 70 of the portable main body unit 12 by a connector cable provided with a charging plug 52. A connector cable provided with a pre-charging plug 54 is also provided.

The spare battery power supply unit 76 includes a spare battery, and is switched when a power failure of the commercial power supply is detected to supply a predetermined DC voltage from the spare battery to the charging unit 74.

[Smoke detection work by smoke detection device]
The smoke detection operation using the smoke detection device 10 will be described with reference to FIGS. 1 to 6 as follows.

The smoke detection device 10 is stored as shown in FIG. 4 in a computer room in which a server or the like is installed, a clean room in a semiconductor manufacturing facility, or the like, and the portable main body 12 is placed on the stationary main body 14. Then, the AC plug 56 is connected to the AC outlet, a commercial AC 100 volt is input, and the charging unit 74 charges the battery power supply unit 70 provided in the portable main unit 12 by receiving the DC input from the power supply circuit unit 72. ing.

When the staff inspects the smoke concentration in the monitoring area, hold the handle 48 of the portable main body 12 by hand or hang it on the shoulder with a shoulder hose belt, move to the place where smoke is to be detected, and move the portable main body. Hold the handle 20 of the suction nozzle device 16 connected to the unit 12 by the hose 24, move to a place where you want to check the smoke concentration in the monitoring area, and move the power switch 44 provided on the portable main unit 12 there. Turn on and bring the suction port 28 at the tip of the suction pipe 26 close to the place where you want to check the smoke concentration to suck air.

When the power switch 44 provided on the portable main body 12 is turned on, power is supplied to each circuit from the battery power supply 70 of the portable main body 12, and the control unit 60, the smoke detection unit 62, and the suction unit 64 are supplied. , The transmission unit 66, the alarm notification unit 42, and the smoke concentration display unit 32 provided in the suction nozzle device 16 are put into operation.

By operating the suction fan provided in the suction unit 64 of the portable main body 12, air is sucked from the suction port 28 of the suction nozzle device 16, and the smoke detection unit 62 of the portable main body 12 is sucked through the hose 24. It passes through and is discharged.

When the smoke detection unit 62 forms a laser beam with respect to the air flow of air sucked through the suction nozzle device 16 to form a smoke detection point of about 1 micrometer, and smoke particles pass through the smoke detection point. The scattered light generated in the above is received by a photodiode arranged parallel to the direction of the electric field component E of the laser light, a detection pulse is output and counted, and a minute smoke concentration is detected by this count number to detect the smoke concentration. A signal is output and sent to the smoke concentration display unit 32 of the suction nozzle device 16 to display the smoke concentration.

As a result, the staff member can perform the work of sucking the air in the place requiring confirmation by the suction nozzle device 16 and checking the smoke concentration while moving in the monitoring area.

Further, when the control unit 60 detects that the smoke concentration detected by the smoke detection unit 62 has reached a predetermined caution threshold value during the smoke detection work, a caution signal is output to the alarm notification unit 42 to issue a caution alarm. Notify by lighting 77 and sound output.

When the control unit 60 detects that the smoke concentration detected by the smoke detection unit 62 has reached a predetermined warning threshold value, it outputs a warning warning signal to the warning notification unit 42 and notifies by lighting of the warning light 78 and acoustic output. To do.

Further, when the control unit 60 detects that the smoke concentration detected by the smoke detection unit 62 has reached a predetermined alarm threshold value, an alarm signal is output to the alarm notification unit 42 to notify by lighting the alarm light 82 and acoustic output. ..

[Modification of the present invention]
(Smoke concentration display)
In the above embodiment, the suction nozzle device is provided with the smoke concentration display unit, but the smoke concentration display unit may be provided on the portable main body unit.

(Power switch)
Further, in the above embodiment, the power switch is provided in the portable main body portion, but a power switch may be provided in the holder portion of the suction nozzle device so that the operation can be performed at hand.

(Fan switch)
Further, in addition to the power switch, the holder portion of the suction nozzle device may be provided with a fan switch for turning on / off the suction fan provided in the suction unit of the device main body. By providing a fan switch in the holder of the suction unit in this way, when the staff moves, the suction fan is stopped by turning off the fan switch, and the fan switch is turned on only at the point where you want to measure to perform suction. This makes it possible to operate the suction fan only when necessary, so that battery consumption can be reduced. In addition, in the control to turn on and off the power of the entire smoke detection device by the power switch, it takes time to be able to measure due to the initial operation when the power is turned on, but according to the fan switch of the suction fan, the fan switch is turned on. By operating the suction fan, the smoke concentration can be measured immediately.

(Alarm notification unit)
Further, in the above embodiment, the portable main body is provided with the alarm notification unit, but the suction nozzle device may be provided with the alarm notification unit so that the alarm can be confirmed at hand.

(Other)
In addition, the present invention includes appropriate modifications that do not impair its purpose and advantages, and is not limited by the numerical values shown in the above embodiments.

10: Smoke detection device 12: Portable main body 14: Stationary main body 16: Suction nozzle device 18: Holder 20: Handle 24: Hose 26: Suction pipe 28: Suction port 30: L-shaped head 32: Smoke concentration display 36: Exhaust port 37: Battery connector 38: Display connector 40: Display code 42: Alarm notification unit 44, 50: Power switch 46: Reset switch 52: Charging plug 60: Control unit 62: Smoke detection unit 64: Suction unit 66: Transmission unit 68: Operation display unit 70: Battery power supply unit 72: Power supply circuit unit 74: Charging unit 76: Spare battery power supply unit

Claims (8)

The main body of the device that notifies an alarm based on the smoke concentration of the air sucked from the suction port,
The holder is provided with handles arranged substantially in parallel, and a suction pipe having a suction port opened at the tip is provided at one end of the holder, and the other end of the holder is detachable from the suction port of the apparatus main body. A hand-held suction nozzle device equipped with a hose
Consists of
A smoke detection device characterized in that a smoke concentration display unit for displaying the smoke concentration detected by the device main body is provided in the holder portion of the suction nozzle device so as to be arranged near the side of the handle.
In the smoke detection device according to claim 1,
A smoke detection device characterized in that the device main body is provided with an alarm notification unit that notifies an alarm based on the smoke concentration.
In the smoke detection device according to claim 1,
The device main body is separated into a portable main body and a stationary main body, and the portable main body is separated from the stationary main body and arranged so as to be portable.
A suction unit that sucks air from the suction port, a smoke detection unit that detects the smoke concentration of the air sucked from the suction port, and a smoke concentration detected by the smoke detection unit are applied to the portable main body of the suction nozzle device. A transmission unit that transmits and displays to the smoke concentration display unit, an alarm notification unit that notifies an alarm based on the smoke concentration, the suction unit, the smoke detection unit, the transmission unit, and a control unit that controls the alarm notification unit. A power supply unit with a secondary battery is provided,
The stationary main body can be connected to a power supply unit that converts the AC voltage of a commercial AC power supply into a predetermined DC voltage and outputs it, a spare battery power supply unit that supplies power in the event of a power failure of the commercial AC power supply, and a cable connection of a charging plug. A smoke detection device provided with a charging unit for charging the secondary battery of the carrying body unit and a power switch.
In the smoke detection device according to claim 3,
The portable main body is detachably equipped with a shoulder hanger belt used when the user checks the smoke concentration while carrying it.
A smoke detection device characterized in that a hose connection port for connecting a hose of the suction nozzle device is provided at a position on the front side surface when the user carries the portable main body portion by the shoulder hanger belt.
The smoke detection device according to claim 1, wherein the suction nozzle device is provided with a detachable L-shaped head at the tip of the suction pipe.
The smoke detection device according to claim 1, wherein the suction pipe of the suction nozzle device is made expandable and contractible.
The smoke detection device according to claim 1, wherein a power switch for operating the device main body is provided in the holder portion of the suction nozzle device.
The smoke detection device according to claim 1 is characterized in that the holder portion of the suction nozzle device is provided with a fan switch for turning on / off a suction fan that sucks air from a suction port provided in the main body of the device. Smoke detection device.

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