CN2071683U - Cylinder door lock capable of locking at three point of upper, middle and lower - Google Patents

Abstract

The utility model relates to a cylinder door lock capable of locking at three points of upper, middle and lower, which is the improvement of the existing cylinder door lock. The bolt of the existing cylinder door lock is provided with a linking shaft, a linking shaft which is at the outer side of a lock body cover is hinged and connected with two connecting rods, and one end of the two connecting rods is respectively hinged and connected with a rocker, an upper bolt, a rocker and a lower bolt through a connecting shaft. One end of two rockers is respectively hinged with a fixed shaft which is arranged on the lock body cover. When the bolt enters or exits a bolt slot, the upper bolt and the lower bolt are respectively enter and exit an upper bolt hole and a lower bolt hole simultaneously, the locking at the three points of upper, middle and lower is realized, and the utility model is not easy to be bumped off and prized, having good safety performance, and the utility model is suitable to lock doors of various buildings.

Description

Cylinder door lock capable of locking at three point of upper, middle and lower

The utility model is the improvement to pin tumbler lock, but more particularly is the pin tumbler lock of 3 lockings of a kind of upper, middle and lower.

As everyone knows, existing a kind of monolock tongue pin tumbler lock of forming by lock body, lock body lid, monolock tongue, monolock core, key and lock tongue slot of pin tumbler lock, lock body is installed on the middle part frame of door, and lock tongue slot is installed on corresponding doorframe middle part, when locking a door, door is strained, dead bolt enters in the lock tongue slot, and with door locked, this door lock can only lock at the middle part of door single-point, be easy to be rushed open and prize and remove, safety performance is relatively poor.The double lock tongue pin tumbler lock that another kind of pin tumbler lock is made up of lock body, lock body lid, double lock tongue, twin-lock core, key and lock tongue slot, lock body is installed on the middle part frame of door, lock tongue slot is installed on corresponding doorframe middle part, when locking a door, can be in door or adopt key outdoors with door locked, though this door lock is a double lock tongue, can only realize the two point locking at the middle part of door equally, be easy to equally be rushed open and prize and remove, safety performance is also relatively poor.

The purpose of this utility model is to overcome above-mentioned shortcoming, provides a kind of be difficult for rushed open and prize and remove, and safety performance is good, can be at the pin tumbler lock of 3 lockings of upper, middle and lower of door.

For achieving the above object, feature of the present utility model is: dead bolt 7 is provided with universal driving shaft 11, lock body covers hinge connection connecting rod 4,10 on 14 outside universal driving shafts 11, connecting rod 4 one ends are through connecting axle 5 hinge connection rocking bar 3 and last latches 6, connecting rod 10 1 ends are through connecting axle 9 hinge connection rocking bar 12 and following latches 8, and rocking bar 3,12 1 ends are articulated in respectively on the fixed axis 2,13 that is fastened on the lock body lid 14.

The utility model can adopt existing monolock tongue pin tumbler lock or the transformation of double lock tongue pin tumbler lock to form.Dead bolt 7 is provided with universal driving shaft 11, and universal driving shaft 11 can adopt carbon steel to make, and adopts methods of attachment such as riveted joint, welding or screw thread to be fastened on the dead bolt 7.Lock body lid 14 is provided with when dead bolt 7 stretches can drive the elongated hole that universal driving shaft 11 moves, and universal driving shaft 11 passes the elongated hole hinge connection connecting rod 4,10 on the lock body lid 14, and connecting rod 4,10 can adopt steel plate to make, and adopts cottor pin or jump ring qualification axial displacement.Connecting rod 4 one ends are through connecting axle 5 hinge connection rocking bar 3 and last latches 6, and connecting rod 10 1 ends adopt cottor pin or jump ring to limit axial displacement through connecting axle 9 hinge connection rocking bar 12 and following latches 8.Rocking bar 3,12 can adopt steel plate to make, connecting axle 5,9, and last latch 6 and following latch 8 can adopt carbon steel to make.Fixed axis 2,13 can adopt carbon steel to make, and methods of attachment such as adopting riveted joint, weld or be threaded is fastened on lock body and covers 14 outsides, and rocking bar 3,12 1 ends are hinged on respectively on the fixed axis 2,13, adopts cottor pin or jump ring to limit axial displacement.Lock body 16 is installed on the middle part frame of door, and lock tongue slot is installed in dead bolt 7 corresponding sections, doorframe middle part, installs pin hole seat and following pin hole seat respectively with last latch 6 and following latch 8 corresponding sections on upper door frame and lower door frame or the floor.When locking a door, when key rotary locking cylinder drive dead bolt 7 enters lock tongue slot, universal driving shaft 11 drivening rods 4,10 will be gone up latch 6, latch 8 also inserts in the pin-and-hole of going up pin hole seat and following pin hole seat respectively down; When opening the door, when key rotary locking cylinder drive dead bolt 7 withdraws from lock tongue slot, universal driving shaft 11 drivening rods 4,10 will be gone up latch 6, latch 8 also withdraws from the pin-and-hole of pin hole seat and following pin hole seat respectively down.

The utility model can be realized 3 lockings of upper, middle and lower, is difficult for being rushed open and prizing and remove, and safety performance is good, is suitable for the door of the various buildings of locking.

Accompanying drawing is a kind of schematic diagram of the present utility model, also is the schematic diagram of a kind of embodiment.

Fig. 1 is a front view, and Fig. 2 is the front view that removes behind the lock body lid 14.

Mark in the accompanying drawing is: outer lock core 1, fixed axis 2,13, rocking bar 3,12 connecting rods 4,10, connecting axle 5,9, last latch 6, dead bolt 7, following latch 8, universal driving shaft 11, lock body lid 14, internal cylinder 15, lock body 16.

Embodiment: but the pin tumbler lock of 3 lockings of upper, middle and lower as shown in the figure, the double lock tongue pin tumbler lock that adopts Yantai to produce improves, with original be riveted on to be used for fixing on the dead bolt 7 stir the plectrum axle lengthening that pulls dead bolt and make universal driving shaft 11, lock body covers 14 outside riveted and fixed axles 2,13, former being useful on stirred elongated hole that the plectrum axle that pulls dead bolt moves and other are constant on the lock body lid 14, and lock body 16 internal constructions do not change yet.Last latch 6, following latch 8, universal driving shaft 11, connecting axle 5,9, fixed axis 2,13 adopt carbon steels to make, connecting rod 4,10, and rocking bar 3,12 adopts the steel sheet punch formings. Articulated linkage 4,10 on the universal driving shaft 11, adopt cottor pin to limit axial displacement, connecting rod 4 one ends are through connecting axle 5 hinged rocking bar 2 and last latches 6, adopt cottor pin to limit axial displacement, rocking bar 3 one ends are hinged on the fixed axis 2, adopt cottor pin to limit axial displacement, and connecting rod 10 1 ends are through connecting axle 9 hinged rocking bar 12 and following latches 8, adopt cottor pin to limit axial displacement, rocking bar 12 1 ends are hinged on and adopt cottor pin to limit axial displacement on the fixed axis 13.Lock body 16 is installed on the middle part frame of door, and lock tongue slot is installed in dead bolt 7 corresponding sections, doorframe middle part, installs pin hole seat and following pin hole seat respectively with last latch 6 and following latch 8 corresponding sections on upper door frame and lower door frame or the floor.When locking a door, when key rotation outer lock core 1 or internal cylinder 15 drive dead bolts 7 and enter lock tongue slot, universal driving shaft 11 drivening rods 4,10 will be gone up latch 6, latch 8 also inserts in the pin-and-hole of going up pin hole seat and following pin hole seat respectively down; When opening the door, when key rotation outer lock core 1 or internal cylinder 15 drive dead bolts 7 and withdraw from lock tongue slot, universal driving shaft 11 drivening rods 4,10 will be gone up latch 6, latch 8 also withdraws from the pin-and-hole of pin hole seat and following pin hole seat respectively down.

Claims (1)

1, but the pin tumbler lock of 3 lockings of a kind of upper, middle and lower is made up of lock body, lock body lid, dead bolt, lock core, key and lock tongue slot, it is characterized in that dead bolt 7 is provided with universal driving shaft 11, lock body covers hinge connection connecting rod 4,10 on 14 outside universal driving shafts 11, connecting rod 4 one ends are through connecting axle 5 hinge connection rocking bar 3 and last latches 6, connecting rod 10 1 ends are through connecting axle 9 hinge connection rocking bar 12 and following latches 8, and rocking bar 3,12 1 ends are articulated in respectively on the fixed axis 2,13 that is fastened on the lock body lid 14.

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