CN2238300Y

CN2238300Y - Door closing sequencer for fireproof door

Info

Publication number: CN2238300Y
Application number: CN 95242217
Authority: CN
Inventors: 董士聪
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-10-06
Filing date: 1995-10-06
Publication date: 1996-10-23
Anticipated expiration: 2005-10-06

Abstract

The utility model relates to a make two fan-type prevent fire door according to the design requirement close the door sequence ware according to the preface. The device consists of a bracket, a long rocker arm and a short rocker arm which are hinged on the bracket in a linkage manner, wherein the front extending ends of the long rocker arm and the short rocker arm are respectively hinged with a roller, and the bracket is provided with a stop block for limiting the inclination angle of the rocker arm. The short rocker arm is used for removing the blocking of the rear door closing fan under the triggering of the first door closing fan, so that the rear door closing fan can be closed only after the first door closing fan. Simple structure and reliable action.

Description

The labeled door tollgate sequencer

The utility model relates to a kind of tollgate sequencer that the two-leaf type labeled door is closed in regular turn by designing requirement.

At present the two-leaf type labeled door that uses utilizes the concavo-convex fit structures of the closed vertical edges of two fan doors to realize the airtight of door, prevents that the outer of pyrotechnics from scurrying.In use, must guarantee that certain fan Men Xianguan wherein could realize its closing function by the designing requirement of door.Existing a kind of way is the order of closing the door that adopts the electronic delay device to realize, the deficiency of this electronic delay device is the order of closing the door that can only guarantee first, and, use occasion is subjected to the restriction thereby the scope of application of electricity limited, electronic component is in off position for a long time and bad working environment easily breaks down, poor reliability.

Given this, the purpose of this utility model is that a kind of mechanical labeled door tollgate sequencer is provided in addition, and this tollgate sequencer is simple in structure, cost is low, reliable operation.

Labeled door tollgate sequencer of the present utility model is made of support and the long rocking arm, the short rocker arm| that are coordinated type that are articulated on the support, respectively is hinged with a roller at the anterior extension end of long rocking arm and short rocker arm|, is provided with the block that limits the rocking arm inclination angle on described support.During use support is fixed in the upper door frame middle part of labeled door; rocking arm has a down dip naturally and leans against the gradient that has a down dip that is certain on the link stopper under the deadweight effect; and long rocking arm is stretched in the motion path of the back pass door leaf in biparting labeled door, and the center line of its roller is positioned under the limit to the doorstep of pass, back door leaf; Short rocker arm| is then corresponding to be stretched in the motion path of the pass earlier of labeled door door leaf, and the elder generation that is centered close to of its roller closes on the limit to the doorstep of door leaf.If should move by the back door leaf that closes during work in advance, the long rocker-arm roller of then being stretched in its motion path in the way of closing blocks and the motion that stops to close the door, treat that door leaf is closed after coming to surpass in door leaf pass in pass earlier, touch mutually with the galianconism roller on its limit of calling, because being centered close on the limit to the doorstep of closing door leaf earlier of galianconism roller, therefore component that makes progress of galianconism roller is given in the motion of door leaf, forces on the short rocker arm| to lift, close door leaf earlier and then walk on until closing.When on galianconism, lifting, the long rocking arm that is interaction relation with it also with on lift, the center of its roller is transferred to above its limit of calling from the limit of calling that is lower than pass, back door leaf, stopping of door leaf closed in the back, make pass, back door leaf formerly close door leaf and just can close afterwards thereby remove.

The utility model has the advantages that simple in structurely, cheap for manufacturing cost, do not select working environment, reliable in action, fault rate are extremely low.

Embodiment:

Fig. 1: front view of the present utility model

The left view of Fig. 2: Fig. 1

The vertical view of Fig. 3: Fig. 1

Fig. 4: installation site of the present utility model schematic diagram

Fig. 5: close door leaf closed condition schematic diagram earlier

As shown in the figure, the utility model is made of support 1 and the long rocking arm 3 of coordinated type, the short rocker arm| 4 that are hinged on the support 1 with hinge post 2, is hinged with a long-armed roller 5 at the anterior extension end of long rocking arm 3, is hinged with a galianconism roller 6 at the anterior extension end of short rocker arm| 4.In the present embodiment, long rocking arm and short rocker arm| link into an integrated entity with a connecting piece 9 and constitute coordinated type.Also can adopt other form to realize its interlock, as will long rocking arm and short rocker arm| all be fixed in form of structure on the hinge post 2, drive affixed with it hinge post when utilizing short rocker arm| to rotate and rotate, make the also rotation thereupon of long rocking arm that is fixed on the hinge post 2.On support 1, be provided with link stopper 7, by the inclination angle of block 7 restrictions two rocking arms.This block 7 can be oppositely arranged, and makes sequencer positive and negative dual-purpose, uses with the different installation positions that are fit to biparting labeled door.During use sequencer is installed on the doorframe 8, referring to 4, and with pass, long rocking arm sensing back door leaf, the galianconism rocking arm points to pass door leaf earlier, and wherein, dotted line is the movable contoured lines on limit to the doorstep of labeled door, is positioned at galianconism roller center O ₁Under, long-armed roller center O ₂On.Formerly close door leaf 10 when closing, limit to the doorstep and second garden, garden arc of roller of its door leaf are collided, and make it to lift for 6 one component that make progress of roller, and 10 of the door leafs in pass continue to advance until cutting out earlier.The suitable length of design short rocker arm|, make close earlier keep when door leaf cuts out rocking arm on lift, close closing at any time of door leaf to guarantee the back.Set a supporting spring 12 as shown in Figure 5 can in case of necessity first every fan realizes.When the first pass of the back fan 11 that closes door leaf moves in advance, the back is closed 11 of door leafs and is blocked by long-armed roller 5, on the long rocking arm of jack-up short rocker arm| drive is come in door leaf pass in pass earlier, lift to remove stopping of door leaf closed in the back, must formerly close the purpose that door leaf just can cut out afterwards with pass door leaf after realizing.

Claims

1, labeled door tollgate sequencer, it is characterized in that described tollgate sequencer is made of support and the long rocking arm and the short rocker arm| that are coordinated type that are articulated on the support, anterior extension end at long rocking arm and short rocker arm| respectively is hinged with a roller, is provided with the block at restriction rocking arm inclination angle on described support.