KR200149248Y1 - An opening device for smoke prevention damper - Google Patents

Abstract

In case of fire, this product releases smoke and toxic gas in the outside by opening air pit and DAMPER installed in the duct in case of fire or protects human life by introducing fresh air from outside. The present invention relates to an automatic switching device of a damper damper (DAMPER) to be provided.

Conventionally, in the damping device, only the opening operation is performed by the fire detection signal, but the opening angle cannot be adjusted, and thus the amount of air supplied from the blower cannot be arbitrarily adjusted.

In order to solve such a problem, the present invention was devised, and by controlling the rotation time of the motor by a circuit incorporating a microcomputer inside the main body, it was possible to adjust only an arbitrary angle.

In addition, a dip switch or a time switch that sets the rotation angle of the opening and closing shaft according to the rotation time of the motor is attached to the outside of the main body so that the opening angle of the opening and closing shaft can be arbitrarily set from the outside without disassembling the main body.

Description

Switching device of DAMPER that can control the opening and closing angle

The present invention is to release smoke and toxic gas installed in the building's air pit and duct in case of fire to release smoke and toxic gas to the outside, or to protect the life by introducing fresh air from outside and provide evacuation time. The present invention relates to an automatic switching device of a damper damper (DAMPER).

In a fire, casualties are usually suffocated by smoke and toxic gases that occur with the flame prior to the damage. Therefore, the building law stipulates that buildings with more than 11 stories should have evacuation stairs, evacuation passages, and smoke control facilities. The smoke damping wave should be structured to be opened automatically by smoke detectors or heat detectors. The dam wave should have a structure that is not closed by the airflow when it is opened. In the conventional dam wave breaker manufactured according to the regulations, the dehumidifying damp wave braid is automatically operated by a heat and smoke detector when a fire occurs to introduce outside air into the room, or to discharge smoke and toxic gas inside the building.

However, in the conventional dam wave breaker, the dehumidification dam wave is not operated at an arbitrary opening and closing angle, but only two operations of rotating the dehumidification damp wave braid by 90 ° to open all or close it are performed. However, in the event of a fire, if the air is blown through the air pit or duct from the building's rooftop or underground blower, or the air is sucked out and discharged, the air flow is large in the floor close to the blower, and the air flow is small in the floor away from the blower. It's gonna be. Therefore, the amount of air supplied or discharged through the ventilation damping wave is not constant depending on the layer, that is, the distance to the blower.

The present invention relates to a dehumidification damping opening and closing control device for arbitrarily adjusting the opening angle of the dehumidifying damping wave in order to keep the amount of air supplied to each floor of the building from the rooftop or underground blower in the event of a high-rise building fire. .

In other words, the present invention has a strong wind pressure of the blower in the floor close to the blower, so that only a part of the ventilation damping wave is opened, and the wind pressure of the blower acts weakly in the far blower and the far floor. Relates to a device.

The present invention is a DAMPER switchgear installed in a high-rise building, in the floor close to the blower to control the amount of opening and closing of the damping damper small, and in the far floor and the blower far from the blower by controlling the opening and closing amount of the dehumidifying damping wave from the blower The purpose is to ensure that the generated air is supplied at an even pressure.

The present invention relates to a smoke control facility of a building, and relates to a dam breaker for operating a braid of a smoke damping wave installed in an air pit and a duct by a fire signal detected by a heat and smoke detector in a fire. In the conventional dam wave breaker, the braid of the smoke elimination damp wave is mechanically operated by 90 ° to open or close by the fire signal. Therefore, in the case of fire, the airflow amount increases in the floor close to the blower, but the airflow amount decreases in the floor away from the blower.

The present invention is intended to be able to blow air in or out at an even pressure on each floor of a building from a blower installed on the roof of a building or underground. As a conventional utility model document for this issue, the present applicant can see the automatic switchgear of the doc filed with the application number 85-16513 dated December 10, 1985, and the application notice number 89-1386 dated April 5, 1989. Can be. As mentioned above, the utility model's pre-registered utility model rotates the shaft of the smoke removal damper installed in the duct 90 ° to open the dam wave in case of fire. have. However, in the present application, the mechanical structure is simplified by operating by a microcomputer incorporating an integrated circuit, but the operation is more sure and accurate.

The present invention rotates the blade of the smoke control damper by the fire signal and opens it, but the angle of braid is controlled by the microcomputer so that the structure can be simplified and the precise operation can be obtained. The blade's rotation angle is controlled by the microcomputer by the motor's rotation time, so that the braid is operated at a set arbitrary angle.

1 is a front view of the present issue.

2 is a front view of another embodiment of the present disclosure.

3 is a cross-sectional view of the present invention and the state of use.

4 is a cross-sectional view taken along the line A-A of FIG.

4a is a closed state cross section of the ventilation damp wave,

4b is an open state cross section of the ventilation damp wave.

The main body 1 is provided with a motor 2, a speed reducer 3 and a circuit box 4, and a power switch 5A, 5B and a dip switch 6 are attached to the outside of the main body 1, The drive gear 7 fixed to the output shaft of (3) is engaged with the driven gear 10 having the hollow shaft 9, wherein the upper and lower ends of the hollow shaft 9 are flush with the main body 1, The hollow shaft (9) has a fixing bolt (13) for fixing the shaft (12) of the braid (22) of the ventilation damping wave (11) inserted into it, and a limit switch (14) is attached to one side of the driven gear (10). The gear 15 is formed only on a part of the circumference of the driven gear 10, and the hollow shaft 9 is rotated at an arbitrary rotation angle by the set value of the dip switch 6.

In addition, the hollow shaft 9 can be rotated at any angle by attaching the time switch 26 instead of the dip switch 6 to drive the motor 2 for a predetermined time.

The present invention configured as described above will operate as follows.

By inserting the shaft 12 of the blade 22 of the smoke removal damping 11 into the hollow shaft 9 which is installed in the main body 1 and fixing it with bolts, all installation work is completed and attached to the outside of the main body 1. The dip switch 6 is adjusted to adjust the rotation angle of the curved shaft 9 to which the braid shaft 12 is fixed.

When the braid 22 is fully opened, the dip switch 6 is set so that the hollow shaft 9 inserting and fixing the braid shaft 12 is opened by 90 °, and when the braid 22 is only half opened, the hollow shaft is opened. The dip switch 6 may be set so that (9) opens only 45 °. Therefore, when the present invention is attached to the air pit and the ventilation damping wave installed in the duct of the high-rise building, it is close to the blower, so in the air pressure-heavy floor, the dip switch 6 is adjusted to rotate the braid shaft 12 of the ventilation damping wave slightly. The air flow is controlled by the amount of air blown, and in the case where the wind pressure is far away from the blower, the dip switch 6 is adjusted to increase the rotation angle of the hollow shaft 9 of the main body. It can be adjusted to be introduced.

In the case of attaching the dip switch 6, it is preferable that the hollow shaft 9 is set in 18 equal parts up to 90 ° at 5 ° intervals, and the dip switch is a 5-stage or 6-stage dip switch 6 By using, it is possible to easily set the 18 parts required in this paper. Therefore, the motor shaft 2 is rotated by the set angle of the hollow shaft 9 in the circuit box 4 in which the microcomputer is built in according to the set value of the dip switch 6, and the hollow shaft 9 is stopped by the dip switch ( Only the value set in 6) will rotate.

Since the driven gear 10 which rotates the hollow shaft 9 only needs to rotate the hollow shaft 9 to 0 ° -90 °, it is not necessary to form the gear 15 in the entire driven gear 10. Even if only a portion of the circumference forms the gear 15, there is no problem in the operation. In addition, a limit switch 14 is attached to one side of the driven gear 10 to transmit the time for the driven gear 10 to be rotated to the circuit box 4 so that the motor 2 is stopped by the microcomputer of the circuit box. The calculation is accurate.

In addition, the present invention can use the time switch 26 in place of the dip switch (6). That is, the time switch 26 causes the motor 2 to rotate only for 30 seconds when the motor 2 rotates the hollow shaft 9 by 90 ° and assumes that the time required for full opening is 60 seconds, and the hollow shaft when the motor is stopped. (9) will only rotate 45 °. Therefore, by adjusting the time switch 26, the braid shaft 12 can be adjusted to rotate at any angle.

The present invention is to open the smoke damping wave installed in the air pit and duct of the building in case of fire to blow fresh air into the building, or in the opening and closing device of the smoke removal damp wave to suck out the smoke and toxic gas generated in the fire and discharge it out of the building, In the related art, the operation is performed by only two operations of opening or closing all the smoke removal dampers by a fire signal, so that the air pressure blown in the blower and the far floor is low, so that the inflow or discharge of air is reduced, and the blower is in the floor close to the blower. The air pressure is too high to have a closed end that the air inflow and discharge is large, but in the present invention, the opening and closing angle of the smoke damping wave is arbitrarily adjusted according to the distance to the blower, that is, the layer close to the blower acts as a strong air pressure Dampa adjusts the bill to open a little bit, In the far floor, because the wind pressure acts weakly, it is possible to supply or discharge air at a constant pressure in case of fire by controlling the bill by opening a lot of dehumidification dampers, so that it can evacuate quickly from the smoke and toxic gas generated in the fire. It is a very useful design to protect lives.

Claims (3)

The main body 1 is provided with a motor 2, a speed reducer 3 and a circuit box 4, and a power switch 5A, 5B and a dip switch 6 are attached to the outside of the main body 1, The drive gear 7 fixed to the output shaft of (3) is engaged with the driven gear 10 having the hollow shaft 9, wherein the upper and lower ends of the hollow shaft 9 are flush with the main body 1, The hollow shaft (9) has a fixing bolt (13) for fixing the shaft (12) of the braid (22) of the ventilation damping wave (11) inserted into it, and a limit switch (14) is attached to one side of the driven gear (10). A gear 15 is formed only on a part of the circumference of the driven gear 10, and the hollow shaft 9 is rotated at an arbitrary rotation angle by a set value of the dip switch 6. Opening / closing device of DAMPER with adjustable angle. 2. The opening and closing apparatus of a damper damper (DAMPER) according to claim 1, characterized in that a time switch (26) is attached instead of the dip switch (6). 2. The opening and closing apparatus of the damper damper (DAMPER) of claim 1, wherein the circuit box (4) has a built-in microcomputer.