CN2287669Y

CN2287669Y - Safety device for fire-proof and anti-theft door

Info

Publication number: CN2287669Y
Application number: CN 97207043
Authority: CN
Inventors: 黄开铸; 窦砚琴
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-01-24
Filing date: 1997-01-24
Publication date: 1998-08-12
Anticipated expiration: 2007-01-24

Abstract

The utility model relates to a safety device for fire-proof and anti-theft doors. The fire-proof and anti-theft door is provided with a sensing device which is connected with the control mechanism of the door. The control mechanism is connected with the actuating mechanism of the door. The sensing device is a mechanical type sensor or an infrared type sensor. The safety device can remove the unsafe factors of the existing fire-proof and anti-theft door, can automatically stop move when the fire-proof and anti-theft door meet the impediment of human bodies and other articles at the time of automatic closed, and can automatically and continuously closed when the impediment are removed.

Description

The safety device of fire prevention, security door

The utility model relates to the safety device of a kind of fire prevention, security door.

Many modern buildings are equipped with labeled door, security door or fire prevention, antitheft dual-purpose door.Closing this door night can be antitheft; During breaking out of fire, close this door and can cut off burning things which may cause a fire disaster.Fire prevention, security door generally are divided into two kinds of floor partition door and passage partition doors, and the former can be with the upper and lower pathway closure between the floors such as stair, elevator when closing for being horizontally disposed with (door-plate or roller shutter are parallel to the ground); The setting perpendicular to the ground of the door-plate of passage partition door or roller shutter, the direction of motion when it is closed are divided into upper and lower motion, transverse translation again and sway three kinds.Existing various fire prevention, security door all can be strengthened the safety of building, but these bases near the people who stands or pass through the door body, but can damage when closing, so that the labeled door asphyxia by external pressure on the chest and abdomen takes place, squeeze the accident of the person of hurting sb.'s feelings.Because of fire prevention, antitheft needs, the own wt of this door is all bigger, as: weighing certainly more than the 200Kg of a rolling door, add motor torque 75Kg, be pressed onto when closing on people's the health, must damage.Particularly under the flurried situation of breaking out of fire, more be prone to accidents.So fire prevention, security door are increased safety device, be very necessary, but in the existing fire prevention, security door, this class device be not set all.

In order to eliminate the unsafe factor of existing fire prevention, security door, make fire prevention, security door when closing automatically, run into the obstruction of human body or other article, automatically stop motion, after obstacle is removed, can continue automatically to close again, when making fire prevention, security door do as usual fire prevention, antitheft effect, human body not damaged.

The technical scheme of finishing the foregoing invention task is as follows: be provided with actuating unit at fire prevention, security door, it is characterized in that; A sensing device is set, and this device is connected with the controlling organization of door, and controlling organization is connected with the actuating unit of door.More than said sensing device, can be mechanical sensor, also can be other sensing devices such as infrared-type sensor or microwave.Said controlling organization can be the electromechanical controller that relay and contactor are formed, and also can be the computer controller that single-chip microcomputer and its peripheral circuit are formed.Power set are meant open and close devices such as fire prevention, the original motor of security door and reducer.

The fire prevention that the utility model provides, the safety device of security door can be eliminated the unsafe factor that has fire prevention, security door now, make fire prevention, security door when closing automatically, run into the obstruction of human body or other article, automatically stop motion after obstacle is removed, can continue to close again automatically.So when fire prevention, security door have done as usual fire prevention, antitheft effect, can use safely again, avoid human injury's accident.

Now be described further with embodiment in conjunction with the accompanying drawings.

Fig. 1 is a logical relation schematic diagram in the utility model control program;

Fig. 2 is the installation site schematic diagram of safety switch among the embodiment 1;

Fig. 3, Fig. 4 are respectively two kinds of safety switch construction schematic diagrames;

Fig. 5, Fig. 6 are respectively two kinds of mounting methods of tongue cover among the same embodiment;

Fig. 7, Fig. 8, Fig. 9 are the holding wire scheme of installation.

Embodiment 1, with reference to Fig. 1, Fig. 2: the sensor-type safety device of rolling door machinery.Sensor 2 is equipped with in the bottom of door body 1, sensor in this example is a mechanical sensor, constitute by a sensitive switch, sensitive switch can be soft-touch control 2-1 or microswitch 2-2 (with reference to Fig. 3, Fig. 4), this switch is fixed on the base 11 of a body, and be connected in as normally closed switch in the coil circuit of relay 3, the normally closed interlock of this relay is with contactor 6 polyphones of motor 5.The normally closed switch 7 of contactor 6 is the hand switch of motor 5.Relay 3, hand switch 7 and contactor 6 constitute controlling organization 4 jointly.Motor 5, rotating cylinder 9 constitute the actuating unit 8 of fire prevention, security door.In order to protect sensor; in the sensitive switch outside; be covered with a tongue cover 10 (with reference to Fig. 5, Fig. 6), this tongue cover is that a cross section is rectangle or the long cover of the trapezoidal rigidity of falling, and available metal or plastics are made; it and door are link joint between the body 1; and, make it can not be pressed onto sensor at ordinary times, when running into human body with spring 12 supports; can depress neatly again, make the sensor action.17 is the microswitch screw among the figure.In the process of door body open and close, in order to protect the transducing signal line injury-free, can holding wire 13 be placed in the reveal guide groove 14, and be embedded in the groove of movable pulley 15 by the mode of Fig. 7-Fig. 9, fixing with wire-hanging hook 16 simultaneously.Need at closing time, the control personnel connect hand switch 7, and the motor 5 in the power set 8 begins to rotate, and drive fire prevention, security door 1 are closed.This moment as run into obstruction such as human body, sensitive switch 2 is switched on, relay 3 actions, and its normally closed interlock disconnects, and the power supply of motor 5 is cut off, and a door body is a pause motion; After blocking the people of a body or thing and removing, soft-touch control or microswitch disconnect, and relay resets, and normally closed interlock is connected, and motor recovers electric power again, and the action that continues to close the door.When the door body suspends, the not enough 2Kg of human body pressure.Produce signal from arbitrary position crash sensor (or tongue cover) of human body, to door body phase down, the time is less than 1 second, and is fool proof.

Embodiment 2, and infrared sensing formula safety device is identical with last routine basic structure, but the signal source of sensor is mounted in the infrared light sources on the doorframe limit and the infrared receiver of another side.This receiver is connected with relay coil in the control circuit.When the door body began to move, infrared light sources began to launch infrared rays, and receiver is constantly received infrared radiation, made relay contact keep normally closed, and contactor is connected power supply, and motor rotates, and closes the door.When someone or other objects entered doorframe, infrared rays was blocked, and receiver can not receive infrared radiation, i.e. trigger relay action, and normally closed interlock disconnects, and motor power is cut off in the contactor action, and the stop motion of door body has ensured safety; After people or object were removed, infrared rays was connected, and relay resets, and motor works on, and closes fire prevention, security door.

More than each embodiment can be contained on any fire prevention, the security door.

Claims

1, the safety device of a kind of fire prevention, security door, fire prevention, security door are provided with actuating unit, it is characterized in that: be provided with a sensing device, this sensing device is connected with the controlling organization of door, controlling organization is connected with the actuating unit of door, said sensing device is mechanical sensor or infrared-type sensor.

2, according to the safety device of the described fire prevention of claim 1, security door, it is characterized in that: said machinery or sensor are made of a sensitive switch, this switch is connected in the normally closed interlock of the coil circuit repeat circuit of relay as normally closed switch, with the contactor polyphone of motor.The normally closed switch of contactor is that hand switch relay, hand switch and the contactor of motor constitutes controlling organization jointly.

3, according to the safety device of claim 1 or 2 described fire prevention, security door, it is characterized in that: said sensitive switch is soft-touch control or microswitch.

4, according to the safety device of claim 1 or 2 described fire prevention, security door, it is characterized in that: in the outside of sensitive switch, be covered with a tongue cover, the tongue cover is that a cross section is rectangle or the long cover of the trapezoidal rigidity of falling, it and door are link joint between the body, and support with spring.

5, according to the safety device of claim 1 or 2 described fire prevention, security door, it is characterized in that: holding wire is placed in the reveal guide groove, and is embedded in the groove of movable pulley.

6, according to the safety device of the described fire prevention of claim 1, security door, it is characterized in that: the signal source of sensor is mounted in infrared light sources and the infrared receiver on the doorframe limit, and this sensor is connected with relay coil in the control circuit.