CN2392558Y - Normal-open electric-controlled fire-retardant door - Google Patents

Abstract

The utility model relates to a normal-open electric-controlled fire-proof door, comprising a fire-proof door 1, a door frame 2, a door closer 5, a smoke sensing fire detector 3, an electric control device 4, and an ordinal door closer 47. The utility model is provided with a pressing plate 46 controlled by an electromagnetic coil 48 and the upper part of the pressing plate 46 is provided with a convex stop block 45. When the fire-proof door 1 is opened, a sliding block 51 and a sliding block 52 are clamped by the stop block 45 to make the two sliding blocks not reset, so that the fire-door 1 is in the normal-open state. When the fire happens, the electromagnetic coil 48 can carry out the power cut and the sliding block 51 can push the stop block 45 under the stop action of the door closer 5 so as to make the fire-proof door 1 closed. The utility model has the advantages of convenient operation and safety. The utility model can not be limited by the installing conditions.

Description

Often open automatically controlled fireproof door

The utility model relates to the closing device of fixed buildings opening part, and what fire-proof function was particularly arranged often opens electric controlled door.

Fireproof door of the prior art is generally operational in normally off, and as the stream of people, the frequent public passage of logistics, normally closed fireproof door uses inconvenient, and causes the artificial damage of fireproof door or service life to shorten easily.Often open fireproof door, neither influence the normal current of people, also can avoid the frequent damage that causes that opens and closes.This what often open that fireproof door adopts at present is the electromagnet formula, and its device main body must be fixed on the wall, and suction disc is fixed on the door leaf, by magnetic attraction door leaf is positioned at normally open.The major defect of this device is that its main body must be installed on the body of wall, and the relative position relation of body of wall and door leaf brings difficulty to installing and resetting, and then can't install some occasion at all.

The purpose of this utility model is to avoid above-mentioned the deficiencies in the prior art, and provide a kind of esy to use, safe and reliable, be not subjected to mounting condition restriction often open fireproof door.

The utility model is realized by implementing following technical scheme, a kind ofly often open automatically controlled fireproof door, comprise fire-proof door leaf, doorframe, the door closer and the cigarette sense fire detector that connect fire-proof door leaf and doorframe, also have to receive the automatically controlled stopping means of cigarette sense fire detector signal controlling fireproof door switch, this device comprises housing, electric cabinet, be installed in enclosure interior the electromagnetism stop, be fixed on the slide block on the door closer.Automatically controlled stopping means is installed on the doorframe; Above the electromagnetism stop, there is one to be subjected to solenoid controlled pressing plate moving up and down, an outstanding link stopper is arranged on it; Also has an order door closer that is installed in the housing.When fire-proof door leaf was opened, the slide block on the door closer moved to electromagnetism stop place, and the solenoid in the electromagnetism stop has electricity at this moment, holds pressing plate, and link stopper blocks slide block can't reset it, and fire-proof door leaf is in normally open.When breaking out of fire, cigarette sense fire detector is responded to smog and is sent a signal of telecommunication, make the solenoid outage, slide block boosts link stopper under the effect of door closer, the two fan fire-proof door leafs of splitting are closed, because the effect of order door closer, the two fan fire-proof door leafs of splitting are closed by named order, thereby close tightlyer.

Further describe most preferred embodiment of the present utility model below in conjunction with accompanying drawing.

Fig. 1 is that the master that the utility model is often opened fireproof door looks, partial sectional view.

Fig. 2 is the partial view of electromagnetism stop 41 and slide block 51 among Fig. 1.

Fig. 3 is the schematic diagram of order door closer 47 and slide block 51,52 effects among Fig. 1.

From Fig. 1 to Fig. 3, can find out, a kind ofly often open automatically controlled fireproof door, comprise fire-proof door leaf 1, doorframe 2, the door closer 5 and the cigarette sense fire detector 3 that connect fire-proof door leaf 1 and doorframe 2, also have to receive the automatically controlled stopping means 4 of cigarette sense fire detector 3 signal controlling fireproof doors 1 switch, this device 4 comprises housing 44, electric cabinet 42, be installed in housing 44 inside electromagnetism stop 41, be fixed on the slide block 51,52 on the door closer 5.Described automatically controlled stopping means 4 is installed on the doorframe 2; Above electromagnetism stop 41, there is one to be subjected to solenoid 48 controls pressing plate 46 moving up and down, an outstanding link stopper 45 is arranged on it; Also has an order door closer 47 that is installed in the housing 44.When fire-proof door leaf 1 was opened, the slide block 51,52 on the door closer 5 moved to electromagnetism stop 41 places, and the solenoid 48 in the electromagnetism stop 41 has electricity at this moment, holds pressing plate 46, and link stopper 45 blocks slide block 51 can't reset it, and fire-proof door leaf 1 is in normally open.When breaking out of fire, cigarette sense fire detector 3 is responded to smog and is sent a signal of telecommunication, make solenoid 48 outages, slide block 51,52 boosts link stopper 45 under the effect of door closer 5, the two fan fire-proof door leafs of splitting 1 are closed, because the effect of order door closer 47, the two fan fireproof doors of splitting are closed by named order, thereby close tightlyer.

As can be seen from Figure 2, gradient less face that pushes 452 of the head of described link stopper 45 and the bigger braking surface 451 of gradient.When slide block 51,52 by the centre during to two side shiftings, at first contact pushes face 4521, because it is less to push the gradient of face 452, slide block 51,52 can overcome the spring forces in the suction of pressing plate 46 and the link stopper 45 easily and push away link stopper 45, blocked by the bigger braking surface 451 of gradient afterwards, reach the purpose that makes fire-proof door leaf 1 location.When solenoid 48 did not have electricity, the suction of pressing plate 46 disappeared, and acts on remanent magnetism power less on the link stopper 45 as long as slide block 51,52 overcomes, and can push away link stopper 45 and close fire-proof door leaf 1.

As can be seen from Figure 3, described order door closer 47 comprises that bearing pin 471, one ends that are fixed in the housing 44 are sleeved on the baffle plate 472 on the bearing pin 471.When solenoid 48 does not have electricity, slide block 51,52 beginnings are moved to the centre, blocked by the termination of baffle plate 472 when slide block 52 moves certain position and can not continue to move, 51 of slide blocks can continue to move and promote baffle plate 472 to the centre to rotate around bearing pin 471, make its progressively perk of another termination, when slide block 51 moves to the centre position, when its fire-proof door leaf of controlling is in closed condition, the perk space of baffle plate 472 another terminations can make slide block 52 pass through, at this moment another fan fire-proof door leaf of being controlled of slide block 52 just can be closed, and has reached the purpose that two fan fireproof doors are closed by specified order.

As can be seen from Figure 2, described electromagnetism stop 41 can move in housing 44 and be fixed on the needed position with trip bolt.Make the opening angle of fire-proof door leaf 1 adjusted by the diverse location of adjusting the electromagnetism stop like this.

The utility model is by implementing above-mentioned technical scheme, the purpose that has reached esy to use, safe and reliable, not limited by mounting condition.

Claims (4)

1. often open automatically controlled fireproof door for one kind, comprise fire-proof door leaf (1), doorframe (2), the door closer (5) and the cigarette sense fire detector (3) that connect fire-proof door leaf (1) and doorframe (2), also have to receive the automatically controlled stopping means (4) of cigarette sense fire detector (3) signal controlling fireproof door (1) switch, this device (4) comprises housing (44), electric cabinet (42), be installed in the inner electromagnetism stop (41) of housing (44), be fixed on slide block (51), (52) on the door closer (5), it is characterized in that: described automatically controlled stopping means (4) is installed on the doorframe (2); There is one to be subjected to solenoid (48) to control pressing plate moving up and down (46) in the top of electromagnetism stop (41), an outstanding link stopper (45) is arranged on it: also have an order door closer (47) that is installed in the housing (44).

2. according to claim 1ly often open automatically controlled fireproof door, it is characterized in that: gradient less face that pushes (452) of the head of described link stopper (45) and the bigger braking surface (451) of gradient.

3. according to claim 1ly often open automatically controlled fireproof door, it is characterized in that: described order door closer (47) comprises the bearing pin (471) that is fixed in the housing (44), and an end is sleeved on the baffle plate (472) on the bearing pin (471).

4. according to claim 1ly often open automatically controlled fireproof door, it is characterized in that: described electromagnetism stop (41) can move in housing (44) and be fixed on the needed position with trip bolt.

Images