CN2520370Y

CN2520370Y - Tailerproof safety door

Info

Publication number: CN2520370Y
Application number: CN 01212160
Authority: CN
Inventors: 王松泉
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-03-19
Filing date: 2001-03-19
Publication date: 2002-11-13
Anticipated expiration: 2011-03-19

Abstract

The utility model relates to a follow-proof safe door, which is composed of a link mechanism, a door spindle, and a one-way rotation mechanism. One end of the link mechanism is connected with a door lock via an anchor line, and a shifting fork on the other end of the link mechanism is movably connected with a compression bar of the door spindle via a pin, the door spindle is insert-connected with the square hole on the ratchet of the one-way rotation mechanism via the compression bar by means of activation, and the one-way rotation mechanism is mounted under the lower doorframe or at the top of the upper doorframe. The utility model can effectively prevent followers from entering, which can be widely applied to finance systems or other departments which have cash collection, and families.

Description

A kind of anti-safety door of trailing

The utility model belongs to a kind of safety door, specifically a kind of anti-safety door of trailing.

In the series of safety door, all be to pay attention to strengthening positions such as lockset, hinge, door leaf to take precautions against theft and robbery, at needs department antitheft, anti-snatch safety door is installed, particularly financial sector or have the gathering chamber department, its side door or back door exist by the ruffian trails the danger of following up and being plundered, in order to prevent the generation of this type of thing, cause the heavy losses of unnecessary personal injury and financial property, all departments all are the ways that adopts artificial nurse at present, but, accident be difficult to control to perfect condition; Application number is that 99200724.0 Chinese patent discloses a kind of " the anti-interlocking safety door of trailing of mechanical type ", be Yishanmen respectively to be installed on a doorframe two sides, between the two fan doors mechanical interlock is housed, this device comprises cam, the lifting cover, lever, support, spring and latch, cam is installed on the door-hinge of a fan, the lifting cover is installed on the cam, and join with lever one end, the lever other end and latch join, on no door-hinge one side of Yishanmen pin hole is arranged in addition, spring is installed between the doorframe and the lever other end, it is to adopt the way of two fan door interlockings to prevent to trail, this apparatus structure complexity, the cost height, the trailing of moment of can't effectively suppressing to close the door enters.

The purpose of this utility model is: provide a kind of simple in structure, cost is low, the moment that can prevent to close the door illegally trails the anti-safety door of trailing of entering the room.

Technical solution of the present utility model is: a kind ofly anti-trail safety door, have door lock and safety door body, by interlinked mechanism, door-hinge, and one-directional rotation mechanism forms; Wherein bindiny mechanism's one end links to each other with door lock by backguy, the shift fork of its other end flexibly connects by depression bar in bearing pin and the door-hinge, described door-hinge is pegged graft with the square hole on the ratchet in type of drive and the one-directional rotation mechanism by depression bar wherein, one-directional rotation mechanism is installed in below the lower door frame or above the upper door frame, is specially:

1) described interlinked mechanism is made up of backguy, transverse axis, shift fork, wherein transverse axis is fixed on the door leaf, and shift fork is for turning a shape, with the transverse axis matched in clearance, the one end links to each other with door lock by backguy, and the other end is by being fixed on bearing pin on the depression bar and depression bar flexible connection in the described door-hinge;

2) described door-hinge is made up of solid door-hinge, bearing pin, Pressure-bar spring, hollow door-hinge, depression bar, axle sleeve, solid door-hinge and hollow door-hinge are loaded in the door leaf chamber, mutually with one heart, be positioned at safety door two ends up and down, be hinged with doorframe, hollow door-hinge peripheral hardware has axle sleeve, depression bar penetrates in the cavity of hollow door-hinge, peg graft with the ratchet in the one-directional rotation mechanism, Pressure-bar spring is between hollow door-hinge and bearing pin, on depression bar;

3) described one-directional rotation mechanism is by ratchet, ratchet, ratchet spring, the ratchet box, pawl seat, catch bar, lid, ratchet holder is formed, ratchet spring wherein, ratchet, ratchet, pawl seat, catch bar is installed in the ratchet box, described ratchet is installed on the pawl seat, with be installed in the ratchet that the groove of ratchet holder upper edge on it be free to slide and be meshed, described catch bar is positioned at the below of ratchet, one end and ratchet are installed together, free end is connected with the depression bar inclined-plane contact of plug-in mounting in the ratchet upper aperture, be provided with groove in the ratchet back, ratchet spring be installed between groove and ratchet box wall.

Operating principle of the present utility model is: adopt ratchet principle control door leaf unidirectional motion, when key insertion door lock opens the door, make the ratchet in the ratchet box that is located at the aligning door-hinge of (or top) below the doorframe break away from engagement by interlinked mechanism, can freely open with ratchet; If extract key this moment, ratchet in the ratchet box and ratchet recover engagement, and this door can only be opened to this angle (angle when promptly extracting key); When the staff enters, door leaf is followed the staff and is closed the door under door closer that adds or manual effect, the door leaf of this moment can only be to open wide-angle (this is the principle of ratchet) once more if do not insert key to the direction motion (being that single direction is closed the door) of closing the door.Therefore, effectively suppressed illegally to trail entering of personnel.

The utility model compared with prior art, its advantage is as follows:

1. the utility model utilizes the ratchet principle, realizes the unidirectional motion of door leaf, adopts the multi-claw type ratchet, the reliability height.

2. the utility model is easy to operate, and is safe in utilization, and its adopts the one-directional rotation mechanism of ratchet lock, and department to be opening ratchet and door lock synchronously with key, and after key extracts, door leaf can only folk prescription to closing the door, effectively prevented illegally entering of the personnel that trail.

3. the utility model is simple in structure, compact, flexible for installation, can one-directional rotation mechanism be installed in the top or the bottom of safety door doorframe by customer requirements, and in addition, cost is low.

4. the utility model applied range not only can be applied to financial sector and other have the safety management of the department of gathering, can also be extensive use of in the family.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the front view of one-directional rotation mechanism in the utility model.

Fig. 3 is the A-A sectional view of Fig. 2.

Below in conjunction with accompanying drawing structure of the present utility model and operating principle are further described.

As Fig. 1, Fig. 2, shown in Figure 3: the utlity model has door lock and safety door body, by interlinked mechanism 1, door-hinge 2, and one-directional rotation mechanism 3 forms; Wherein interlinked mechanism 1 one ends link to each other with door lock 7 by backguy 11, the shift fork 13 of its other end flexibly connects by depression bar in bearing pin 22 and the door-hinge 2 25, described door-hinge 2 is pegged graft with the square hole on the ratchet 303 in type of drive and the one-directional rotation mechanism 3 by depression bar 25 wherein, one-directional rotation mechanism 3 is installed in below the lower door frame 5, is specially:

1) described interlinked mechanism 1 is made up of backguy 11, transverse axis 12, shift fork 13, wherein transverse axis 12 is fixed on the door leaf 6, shift fork 13 is for turning a shape, with transverse axis 12 matched in clearance, the one end links to each other with door lock 7 by backguy 11, and the bearing pin on the depression bar 25 22 flexibly connects with depression bar 25 other end in the described door-hinge 2 by being fixed on;

2) described door-hinge 2 is made up of solid door-hinge 21, bearing pin 22, Pressure-bar spring 23, hollow door-hinge 24, depression bar 25, axle sleeve 26, solid door-hinge 21 and hollow door-hinge 24 are loaded in door leaf 6 chambeies, mutually with one heart, be positioned at safety door two ends up and down, be hinged, the hollow door-hinge 24 outer axle sleeves 26 that are provided with doorframe 5, depression bar 25 penetrates in the cavity of hollow door-hinge 24, peg graft with the ratchet 303 in the one-directional rotation mechanism 3, Pressure-bar spring 23 is 22 of hollow door-hinge 24 and bearing pins, on depression bar 25;

3) described one-directional rotation mechanism 3 is by ratchet 303, ratchet 302, ratchet spring 301, ratchet box 304, pawl seat 305, catch bar 306, lid 307, connecting bolt 308, lid set bolt 309, ratchet holder 310 is formed, wherein ratchet spring 301, ratchet 302, ratchet 303, pawl seat 305, catch bar 306 is installed in the ratchet box 304, described ratchet 303 is installed on the pawl seat 305, with be installed on the ratchet holder 310, and be meshed along the ratchet 302 that the groove on it is free to slide, described catch bar 306 is positioned at the below of ratchet 303, one end and ratchet 302 are installed together, the free end inclined-plane is connected with the depression bar 25 chamferings contact of plug-in mounting in ratchet 303 square holes, be provided with groove in ratchet 302 back, ratchet spring 301 be installed between groove and ratchet box 304 walls;

In addition, described one-directional rotation mechanism 3 is that control door leaf 6 single directions rotate, and the one-directional rotation mechanism that can open synchronously with key of its ratchet 303 and door lock 7; Ratchet 302 pawl numbers in the described one-directional rotation mechanism 3 are 3; On the lid 307 in the described one-directional rotation mechanism 3, have one with door-hinge 2 in the free end of depression bar 25 be the groove of matched in clearance, and be positioned at depression bar 25 under; The free end of the depression bar 25 in the described door-hinge 2 is provided with chamfering, and its gradient matches with the gradient on catch bar 306 free end inclined-planes in the one-directional rotation mechanism 3.

The utility model, as shown in Figure 1, when the staff turns key when opening the door, the backguy 11 that is connected on door lock 7 interlinked mechanisms 1 is pulled, make shift fork 13 press depression bar 25, depression bar 25 pushing catch bars 306 make ratchet 302 actions (as shown in Figure 2), can open one-directional rotation mechanism 3 and door lock 7 synchronously; If twist back and extract key, along with the action of door lock 7,1 backguy 11 is loosened on the interlinked mechanism, depression bar 25 lifts under the effect of Pressure-bar spring 23, the ratchet lock device meshes again, thereby, finished the staff and freely opened the door and prevent to trail the task that personnel enter.

Fig. 2, Fig. 3 is the situation that door leaf reaches 90 mechanisms of one-directional rotation when spending 3, the ratchet that can rotate 303 is housed in the ratchet box 304 and is installed on the ratchet holder 310, and can be along the ratchet 302 of the slip of the groove on it, and catch bar 306, pawl seat 305 and ratchet spring 301, catch bar 306 and ratchet 302 couple together by connecting bolt 308, the square endoporus is made at ratchet 303 centers, cooperate with hollow door-hinge 24, so that open and to drive ratchet 303 rotations at closing time effectively, ratchet box 304 usefulness bolts 4 are fixed on the doorframe 5 following (as shown in Figure 1) of safety door, the lid of fixing with set bolt 309 307 is housed on the ratchet box 304, is provided with depression bar 25 in the hollow door-hinge; When key turns toward the direction of unblanking, push catch bar 306 with the shift fork 13 of safety door latch interlock downwards by depression bar, make catch bar 306 to left movement, be connected ratchet 302 on the catch bar 306 and broken away from engagement with ratchet 303, door leaf 6 can be opened to free angle; After key back turns dial-out, lift with the shift fork 13 of safety door latch 7 interlocks, depression bar 25 under the effect of Pressure-bar spring 23 also along with lifting, catch bar 306 loses the effect of external force, the ratchet 302 that is connected on the catch bar 306 is meshed by the effect of ratchet spring 301 and ratchet 303 again, make door leaf 6 can't open wide-angle once more, can only under the effect of door closer 8, close the door; In addition, one-directional rotation mechanism 3 adopts the three-pawl type ratchet, and three ratchets are combined, and is handled by catch bar 306, and all there is the synchronous and ratchet engaged of three ratchets in every one step of action, can strengthen the effect of external force.

The new described one-directional rotation of this practicality mechanism 3 also can be contained in above the upper door frame, as long as the installation site of device such as hollow door-hinge 24 and depression bar 25 and solid door-hinge 21 is exchanged; In order to adapt to the convenience that left-hand opens the door or dextrad is opened the door, one-directional rotation mechanism 3 also can be installed in a left side or the right diverse location of upper door frame or lower door frame; In addition, at least 2 of described ratchet 302 pawls can also be 4-6.

Claims

1. prevent trailing safety door for one kind, have door lock and safety door body, it is characterized in that: by interlinked mechanism (1), door-hinge (2), and one-directional rotation mechanism (3) forms; Wherein interlinked mechanism (1) one end links to each other with door lock (7) by backguy (11), the shift fork of its other end (13) flexibly connects by the middle depression bar (25) of bearing pin (22) and door-hinge (2), described door-hinge (2) is pegged graft with the square hole on the ratchet (303) in type of drive and the one-directional rotation mechanism (3) by depression bar (25) wherein, one-directional rotation mechanism (3) is installed in below the lower door frame (5) or above the upper door frame (5), is specially:

1) described interlinked mechanism (1) is made up of backguy (11), transverse axis (12), shift fork (13), wherein transverse axis (12) is fixed on the door leaf (6), shift fork (13) is for turning a shape, with transverse axis (12) matched in clearance, the one end links to each other with door lock (7) by backguy (11), and the bearing pin (22) on the depression bar (25) flexibly connects with depression bar (25) other end in the described door-hinge (2) by being fixed on;

2) described door-hinge (2) is by solid door-hinge (21), bearing pin (22), Pressure-bar spring (23), hollow door-hinge (24), depression bar (25), axle sleeve (26) is formed, solid door-hinge (21) and hollow door-hinge (24) are loaded in door leaf (6) chamber, mutually with one heart, be positioned at safety door two ends up and down, be hinged with doorframe (5), the outer axle sleeve (26) that is provided with of hollow door-hinge (24), depression bar (25) penetrates in the cavity of hollow door-hinge (24), peg graft with the ratchet (303) in the one-directional rotation mechanism (3), Pressure-bar spring (23) is between hollow door-hinge (24) and bearing pin (22), on depression bar (25);

3) described one-directional rotation mechanism (3) is by ratchet (303), ratchet (302), ratchet spring (301), ratchet box (304), pawl seat (305), catch bar (306), lid (307), ratchet holder (310) is formed, ratchet spring (301) wherein, ratchet (302), ratchet (303), pawl seat (305), catch bar (306) is installed in the ratchet box (304), described ratchet (303) is installed on the pawl seat (305), with be installed on the ratchet holder (310), and be meshed along the ratchet (302) that the groove on it is free to slide, described catch bar (306) is positioned at the below of ratchet (303), one end and ratchet (302) are installed together, the free end inclined-plane is connected with depression bar (25) the chamfering contact of plug-in mounting in ratchet (303) square hole, be provided with groove in ratchet (302) back, ratchet spring (301) be installed between groove and ratchet box (304) wall.

2. according to claim 1ly anti-trail safety door, it is characterized in that: described one-directional rotation mechanism (3) is that control door leaf (6) single direction rotates, and the one-directional rotation mechanism that can open synchronously with key of its ratchet (303) and door lock (7).

3. according to claim 1ly anti-trail safety door, it is characterized in that: the ratchet (302) in the described one-directional rotation mechanism (3) be a multi-claw type, and the pawl number is that 2-6 is individual.

4. the anti-safety door of trailing according to claim 1, it is characterized in that: on the lid (307) in the described one-directional rotation mechanism (3), have one with door-hinge (2) in the free end of depression bar (25) be the groove of matched in clearance, and be positioned at depression bar (25) under.

5. according to claim 1ly anti-trail safety door, it is characterized in that: the free end of the depression bar (25) in the described door-hinge (2) is provided with chamfering, and its gradient matches with the gradient on middle catch bar (306) the free end inclined-plane of one-directional rotation mechanism (3).