CN2425981Y - Three-interlocking mechanism for safety door - Google Patents

Abstract

The utility model relates to a three-interlocking mechanism of a safety door, which comprises a longitudinal left latch beating plate and a longitudinal right latch beating plate. One opposite side of each of the latch beating plates is respectively fixed with a sliding plate which is vertical to the latch beating plates; the two sliding plates are staggered mutually in a definite distance and a driving device which can make the two latch beating plates correspondingly move left and right is arranged between the two sliding plates; a movable sleeve A is fixed on one of the sliding plate and a movable sleeve B and a movable sleeve C are fixed on the other sliding plate side by side. Three fixed sleeves A, B, C are fixed on a door plate corresponding to the positions of the three movable sleeves; a lock a is arranged between a fixed sleeve B and a fixed sleeve C and a lock b and a lock c are arranged on both sides of the fixed sleeve A; three bolts are respectively arranged in the three fixed sleeves and the movable sleeves; the bolts are connected with corresponding lock tongues respectively through steel cables by pulleys. The utility model is that as long as three of the locks are opened, the safety door can be opened, and therefore, the utility model is convenient for users.

Description

A kind of tri-interlocking device of safety door

The utility model relates to a kind of tri-interlocking device that is used for safety door.

The security door of existing safety door such as bank exchequer door or other important mechanism etc., often be provided with duplex lock mechanism for the sake of security, promptly needing two people to open corresponding lock with different keys simultaneously could open door, but this has also brought inconvenience to use, because as long as one of them key holder just can't not open.

The tri-interlocking device of the purpose of this utility model with regard to being to provide a kind of any two locks that need only in three locks to be opened simultaneously and safety door can be opened at above-mentioned prior art present situation.

The purpose of this utility model be achieved in that the tri-interlocking device of safety door comprise longitudinally about two crossbar-beating plates, two crossbar-beating plates have the door bolt of beating of evagination in arranged outside separately, and be fixed with perpendicular slide plate respectively in a relative side, stagger mutually certain distance and be provided with the transmission mechanism that can make two crossbar-beating plates that relative move left and right takes place betwixt of two slide plates, it is characterized in that being fixed with movable sleeve A on a slide plate therein, be fixed with movable sleeve B and movable sleeve C on another slide plate side by side, with movable sleeve A, B, be fixed with on the door-plate of C correspondence position with their endoporus respectively to three straight fixed cover A, B, C, lock a is arranged on fixed cover B, between the C, lock b and lock c then are arranged on the both sides of fixed cover A, the dead bolt end of lock a is fixed with a connecting rod, the two ends of connecting rod with bolt is spacing respectively also can be up and down in groove in the elongate slot of latch B and latch C; The end of latch B is inserted in respectively in the endoporus of fixed cover B and movable sleeve B, and the other end links to each other through the dead bolt end of pulley with lock c by hawser; The end of latch C is inserted in respectively in the endoporus of fixed cover C and movable sleeve C, the other end links to each other through the dead bolt end of pulley with lock b by hawser, and the dead bolt of lock b, lock c also links to each other with the end of latch A through pulley respectively by hawser in addition, and the other end of latch A then is inserted in the endoporus of fixed cover A and movable sleeve A.

After adopting the utility model, give three different people's keepings respectively, when opening the door,, thereby greatly facilitate the user as long as wherein any two people show up and just safety door can be opened with the key of three locks.

Description of drawings:

Fig. 1 is the structural representation of the utility model embodiment.

Structural representation (inboard) when Fig. 2 is applied to a national treasury door for the utility model.

Fig. 3 is the right view of Fig. 2.

Fig. 4 is the rear elevation (being the national treasury outer side of door) of Fig. 2.

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As shown in Figure 1, two crossbar-beating plates 1 about the tri-interlocking device of safety door comprises longitudinally, two crossbar-beating plates have beating of evagination to fasten 11 with a bolt or latch in arranged outside separately, and be fixed with perpendicular slide plate 21,22 respectively in a relative side, the two slide plates certain distance that staggers mutually, be respectively arranged with on their right side tooth bar 24,23, two tooth bars 24,23 respectively be arranged on therebetween with 8 engagements of the coaxial gear that links to each other of runner, formation can make two crossbar-beating plates 1 that the transmission mechanism of relative move left and right takes place;

Be fixed with movable sleeve A32 on the lower skateboard 22, be fixed with movable sleeve B42 and movable sleeve C52 on the upper slide 21 side by side, with the door-plate of movable sleeve A, B, C correspondence position on be fixed with their endoporus respectively to straight three fixed cover A33, B43, C53, lock a31 is arranged between fixed cover B43, the C53, lock b41 and lock c51 then are arranged on the both sides of fixed cover A33, the dead bolt end of lock a31 is fixed with a connecting rod 6, the two ends of connecting rod 6 with bolt is spacing respectively also can be up and down in groove in the elongate slot 46,56 of latch B44 and latch C54; The end of latch B44 is inserted in respectively in the endoporus of fixed cover B43 and movable sleeve B42, and the other end links to each other through the dead bolt end of pulley 45 with lock c51 by hawser 7; The end of latch C54 is inserted in respectively in the endoporus of fixed cover C53 and movable sleeve C52, the other end links to each other through the dead bolt end of pulley 55 with lock b41 by hawser 7, and the dead bolt of lock b41, lock c51 also links to each other with the end of latch A34 through pulley 35 respectively by hawser in addition, and the other end of latch A34 then is inserted in the endoporus of fixed cover A33 and movable sleeve A32.

During use, if lock a31, lock b41 are opened simultaneously, then lock the dead bolt indentation of a, connecting rod 6 pulls away movable sleeve B42, movable sleeve C52 with latch B44 and latch C54, simultaneously, two hawsers 7 that the dead bolt indentation pulling of lock b is attached thereto, wherein one by pulley 35 with latch A34 from movable sleeve A33, another root draws latch C54 by pulley 55, goes up the existence of elongate slot 56 because of latch C54, this moment, latch C54 still can be pulled, and made it movable sleeve C52 further away from each other; At this moment, latch A, B, C all leave movable sleeve A, B, C respectively, and rotating wheel rotates gear 8 can to make up and down that move left and right take place slide plate 21,22, thereby make 1 indentation of left and right sides crossbar-beating plate and open the door;

If lock b41, lock c51 are opened simultaneously, then lock the dead bolt indentation of b41, two hawsers 7 that pulling is attached thereto, wherein one pulls away movable sleeve A33 by pulley 35 with latch A34, another root pulls away movable sleeve C52 by pulley 55 with latch C54, at this moment, the right-hand member of connecting rod 6 will move down until the lower end of elongate slot 56 at the elongate slot 56 relative latch C54 of latch C54, and connecting rod 6 itself then is not moved; Simultaneously, dead bolt c51 locks into, two hawsers 7 that pulling is attached thereto, wherein one is pulled away from movable sleeve B42 by pulley 45 with latch B44, at this moment, the left end of connecting rod 6 will move down until the lower end of elongate slot 46 at the elongate slot 46 relative latch B44 of latch B44, and connecting rod 6 itself then still is not moved; Because latch A, B, C all leave movable sleeve A, B, C respectively, rotating wheel rotates gear 8 can to make up and down that move left and right take place slide plate 21,22, thereby makes 1 indentation of left and right sides crossbar-beating plate and open the door;

During use, if lock a31, lock c51 are opened simultaneously, then lock the dead bolt indentation of a31, connecting rod 6 pulls away movable sleeve B42, movable sleeve C52 respectively with latch B44 and latch C54, simultaneously, the dead bolt indentation of lock c51, two hawsers 7 being attached thereto of pulling, wherein one pulls away movable sleeve A32 by pulley 35 with latch A34, another root draws latch B44 by pulley 45, because of the existence that latch B44 goes up elongate slot 46, this moment, latch B44 still can be pulled, and made it movable sleeve B42 further away from each other; At this moment, latch A, B, C all leave movable sleeve A, B, C respectively, and rotating wheel rotates gear 8 can to make up and down that move left and right take place slide plate 21,22, thereby make 1 indentation of left and right sides crossbar-beating plate and open the door.

Claims (2)

1. the tri-interlocking device of a safety door, two crossbar-beating plates (1) about comprising longitudinally, two crossbar-beating plates (1) are beaten door bolt (11) what separately arranged outside had an evagination, and be fixed with perpendicular slide plate (21) respectively in a relative side, (22), two slide plates (21), (22) stagger mutually certain distance and being provided with betwixt can make two crossbar-beating plates (1) that the transmission mechanism of relative move left and right takes place, it is characterized in that being fixed with movable sleeve A (32) on the slide plate (22) therein, be fixed with movable sleeve B (42) and movable sleeve C (52) on another slide plate (21) side by side, with movable sleeve A (32), B (42), be fixed with on the door-plate of C (52) correspondence position with their endoporus respectively to straight three fixed cover A (33), B (43), C (53), lock a (31) is arranged on fixed cover B (43), between the C (53), lock b (41) and lock c (51) then are arranged on the both sides of fixed cover A (33), the dead bolt end of lock a (31) is fixed with a connecting rod (6), and the two ends of connecting rod (6) are with the spacing respectively elongate slot (46) at latch B (44) and latch C (54) of bolt, (56) also can be up and down in groove in; The end of latch B (44) is inserted in respectively in the endoporus of fixed cover B (43) and movable sleeve B (42), and the other end links to each other through the dead bolt end of pulley (45) with lock c (51) by hawser (7); The end of latch C (54) is inserted in respectively in the endoporus of fixed cover C (53) and movable sleeve C (52), the other end links to each other through the dead bolt end of pulley (55) with lock b (41) by hawser (7), and the dead bolt of lock b (41), lock c (51) also links to each other through the end of pulley (35) with latch A (34) respectively by hawser (7) in addition, and the other end of latch A (34) then is inserted in the endoporus of fixed cover A (33) and movable sleeve A (32).

2. the tri-interlocking device of safety door as claimed in claim 1, it is characterized in that being respectively arranged with tooth bar (24), (23) on the right side of described slide plate (21), (22), two tooth bars (24), (23) respectively be arranged on therebetween with the coaxial gear that links to each other of runner (8) engagement, formation can make two crossbar-beating plates (1) that the transmission mechanism of relative move left and right takes place.

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