CN103615150A

CN103615150A - Novel mortice door lock

Info

Publication number: CN103615150A
Application number: CN201310546013.4A
Authority: CN
Inventors: 麦丽红
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-11-07
Filing date: 2013-11-07
Publication date: 2014-03-05

Abstract

The invention discloses a novel mortice door lock comprising a lock case. The lock case is internally provided with a latch bolt component, a dead bolt component, a transmission mechanism capable of driving the latch bolt component or/and the dead bolt component to retract back to the lock case and a limit mechanism used for locking the dead bolt component. The novel mortice door lock is characterized in that the transmission mechanism comprises a driving fork component, a driven fork and an unlocking fork, the driving fork component can be driven by a lever handle, the driven fork is hinged to the lock case and can drive a dead bolt to retract back to the lock case, and the unlocking fork is hinged to the lock case and can remove limit of the limit mechanism; a lock cylinder mounting hole is further formed in the lock case which is further provided with an auxiliary fork which can be driven by a lock cylinder to drive a latch bolt to retract back to the lock case. The novel mortice door lock has the advantages of being simple and stable in structure and convenient and safe to use.

Description

A kind of novel mortise door lock

Technical field

The present invention relates to lockset and manufacture field, relate in particular to a kind of novel mortise door lock.

Background technology

Mortise door lock is one of lockset conventional in people's daily life, it uses widely at home and workplace, and such lockset, generally at Men Nei and be all provided with outdoors Door handle, is also being provided with keyhole outdoors, handle outdoors can only be opened latch bolt, and can not the side's of opening tongue; The mortise door lock of part type is also provided with keyhole in door, handle in door also can only be opened latch bolt, side's tongue needs key just can open, the mortise door lock of another part is not established keyhole in door, but a unlocking knob is set in door, by the rotation unlocking knob side of opening tongue, then open latch bolt by handle in door, thereby open the door.Traditional mortise door lock is generally work like this, when needing to lock a door outdoors, insert key, by the rotation side of the release tongue of key, realize and locking a door, when opening the door outdoors, key is inserted in lock core, key band movable lock core rotates, thereby the lock core again side's of drive tongue and latch bolt moves to realize and opens the door, also can realize and opening the door with opening latch bolt by handle outdoors again after the key side of opening tongue; While locking a door in door, can realize and locking a door by key or the unlocking knob side of release tongue, when door inward opening door, if square tongue does not stretch out lock body, only handle rotating in door can need be realized and being opened the door, if but square tongue has stretched out lock body (being the popular alleged situation of locking), now can only open door by key or unlocking knob.Some passageways for fire apparatus, public place mortise door lock used particularly, for preventing that other people from, arbitrarily from entering outdoors, generally laying the key under the door, in the situation that there is dangerous situation, if from opening the complex operation of door in door, can bring serious consequence.The present invention develops under a kind of like this background technology.

Summary of the invention

The object of the present invention is to provide a kind of novel mortise door lock, it can open the door fast the in the situation that of square tongue locking in door, is applicable to L.H.flapped door and R.H.flapped door simultaneously and installs, and has simple and stable structure, safe advantage easy to use.

For solving the problems of the technologies described above, the present invention adopts following technical proposal: a kind of novel mortise door lock, include lock housing, latch bolt assembly, square tongue assembly are installed in lock housing and can drive latch bolt assembly or/and the transmission mechanism in square tongue assembly retraction lock housing, position-limit mechanism for the side's of locking tongue assembly, it is characterized in that described transmission mechanism includes the active pull-fork assembly that can be driven by handle, is hinged in lock housing the driven shift fork in can the side's of drive tongue retraction lock housing, is hinged on the release shift fork of the restriction that can remove position-limit mechanism in lock housing; In lock housing, be also provided with lock core mounting hole, lock housing is also provided with and can is driven and be made the secondary shift fork in latch bolt retraction lock housing by lock core, and wherein: described active pull-fork assembly comprises outer shift fork, middle shift fork and interior shift fork, three is equipped with and can realizes the square hole that moment of torsion transmits by plug-in mounting handle; Outer shift fork and interior shift fork top are respectively equipped with the shifting block that can drive in latch bolt retraction lock housing, and middle shift fork is provided with the plectrum that can drive driven shift fork, release shift fork to rotate; Described position-limit mechanism includes limiting tooth on the side's of being located at tongue assembly, is located at the limiting plate in lock housing, and limiting plate is provided with and coordinates latch hole with limiting tooth; Described lock housing is provided with two alignment pins, and limiting plate is provided with two gathering sills, and two alignment pins are respectively through two gathering sills, and limiting plate can slide up and down under stressed effect in certain stroke; Thereby on limiting plate, be also provided with and coordinate the upwards release pin of jack-up limiting plate with release shift fork; In described lock housing, be also provided with and make the stressed limiting plate back-moving spring down of limiting plate; Described side's tongue assembly is provided with for the interspersed chute of two alignment pins.

Further, in described lock housing, be also provided with initiatively pull-fork assembly back-moving spring, latch bolt back-moving spring.

Further, be also provided with locking gear plate on described square tongue assembly, locking gear plate is provided with and can coordinates with alignment pin the circular arc screens that realizes stepping locking.

Further, the square hole of described outer shift fork, middle shift fork and interior shift fork on same axle center and size identical, three is stacked.

The invention has the beneficial effects as follows: with key lock lock core in the situation that, when in the time will opening this mortise door lock outdoors, only need suitably to rotate key, can the side's of opening tongue, the outer handle of rotary door just can open latch bolt, realizes the action of opening the door; While needing to open door lock in door, only need to pressing down in revolving door handle, the side's of opening tongue and latch bolt realize the action of opening the door simultaneously; The present invention has realized and has reduced to use key frequency, uses efficient and convenient.

Accompanying drawing explanation

Below in conjunction with drawings and embodiments, the present invention is described in further detail:

Fig. 1 is the internal construction schematic diagram that the present invention opens lock housing one side under the state of locking a door;

Fig. 2 is the internal construction schematic diagram that the present invention opens lock housing opposite side under the state of locking a door;

Fig. 3 is the internal construction schematic diagram that the present invention opens lock housing one side under door opening state;

Fig. 4 is the internal construction schematic diagram that the present invention opens lock housing opposite side under door opening state;

Fig. 5 is the initiatively blast structural representation of pull-fork assembly of the present invention;

Fig. 6 is the initiatively cross-sectional view of pull-fork assembly of the present invention;

Fig. 7 is the perspective view one of position-limit mechanism of the present invention;

Fig. 8 is the perspective view two of position-limit mechanism of the present invention.

The specific embodiment

As shown in Fig. 1 ~ 4, a kind of novel mortise door lock, include lock housing 1, latch bolt assembly 2, latch bolt back-moving spring 21, square tongue assembly 3 are installed in lock housing and can drive latch bolt assembly or/and the transmission mechanism 4 in square tongue assembly retraction lock housing, position-limit mechanism 5 for the side's of locking tongue assembly 3, transmission mechanism 4 includes the active pull-fork assembly 6 that can be driven by handle, be hinged in lock housing 1 the driven shift fork 7 in can the side's of drive tongue retraction lock housing, is hinged on the release shift fork 8 of the restriction that can remove position-limit mechanism 5 in lock housing 1; In lock housing 1, be also provided with lock core mounting hole 101, in lock housing 1, be also provided with and can drive and make the secondary shift fork 12 in latch bolt retraction lock housing by lock core.

Shown in figure 7, Fig. 8, initiatively pull-fork assembly 6 comprises outer shift fork 601, middle shift fork 602 and interior shift fork 603, and three is equipped with and can realizes the square hole that moment of torsion transmits by plug-in mounting handle; Three's square hole on same axle center and size identical, three is stacked.Outer shift fork and interior shift fork top are respectively equipped with the shifting

block

9,10 that can drive in latch bolt retraction lock housing, and middle shift fork 602 is provided with the plectrum 11 that can drive driven shift fork 7, release shift fork 8 to rotate; In lock housing 1, be also provided with initiatively pull-fork assembly back-moving spring 20.

Shown in figure 5, Fig. 6, position-limit mechanism includes limiting tooth 301 on the side's of being located at tongue assembly 3, is located at the limiting plate 13 in lock housing 1, and limiting plate is provided with limiting tooth 301 and coordinates latch hole 1301; Lock housing 1 is provided with two

alignment pins

14,15, and limiting plate 13 is provided with two

gathering sill

16,17, two

alignment pins

14,15 respectively through two

gathering sills

16,17; Thereby be also provided with on limiting plate 13, can coordinate with release shift fork 8 the upwards release pin 19 of jack-up limiting plate 13; In lock housing 1, be also provided with and make the stressed limiting plate back-moving spring 18 down of limiting plate 13.Described side's tongue assembly 3 is provided with for the interspersed chute 23 of two

alignment pins

14,15.

On side's tongue assembly 3, be also provided with locking gear plate 22, locking gear plate 22 is provided with and can coordinates with

alignment pin

14,15 the circular arc screens 2201 that realizes stepping locking.

Operating principle of the present invention is as follows: shown in figure 3 to Fig. 6, when locking a door outdoors, by key band movable lock core, rotate, because limiting plate 13 is provided with two

gathering sills

16,17, in the stroke range that limiting plate 13 can limit at two

gathering sills

16,17, slide up and down, the jack-up so lock core can make progress limiting plate 13, limiting tooth on the side's of being located at tongue assembly 3 301 departs from the locking of being located at the latch hole 1301 on limiting plate 13, so lock core is again by stirring gear tooth 302 side's of making tongues on the side's of being located at tongue assembly outside front slide is stretched out lock housing 1.Meanwhile, under the effect of limiting plate back-moving spring 18, limiting plate 13 glides and resets.

Otherwise, when unblanking outdoors, on limiting plate 13, moving and unlock, lock core slides backward in retraction lock housing 1 by stirring gear tooth 302 side's of making tongues.Meanwhile, lock core also withstands secondary shift fork 12 and makes it to rotate around hinged axle center, thereby promotes in latch bolt retraction lock housing.Certainly, now also can drive outer shift fork 601 to rotate by the outer handle of rotary door, the shifting block 9 of being located on outer shift fork drives latch bolt assembly 2 to slide backward, thereby opens latch bolt.

In door, handle can be given middle shift fork 602 and interior shift fork 603 by while transmitting torque, in the situation that square tongue has locked, if need be at door drawback lock, it is to realize like this, shown in figure 1, Fig. 2, Fig. 5, Fig. 6, handle rotating in door, in driving, shift fork 603 rotates, the shifting block 10 of being located on interior shift fork drives latch bolt assembly 2 to slide backward, thereby opens latch bolt.Simultaneously, in door, in handle drive, shift fork 602 rotates, the plectrum 11 of middle shift fork 602 drives release shift fork 8 to rotate around hinged axle center, the middle shift fork 602 lower ends jack-up that makes progress is located at the release pin 19 on limiting plate 13, thereby make progress jack-up limiting plate 13, when in door, handle is rotated further, the plectrum 11 of middle shift fork 602 withstands driven shift fork 7 and rotates around its hinged axle center, and withstand in reversed column 303 side's of the making tongue retraction lock housings 1 on the side's of being located at tongue assembly driven shift fork 7 lower ends.

If transmitting torque is to middle shift fork 602 and interior shift fork 603 for a handle simultaneously, another handle transmitting torque is given outer shift fork 601, belongs to L.H.flapped door; When installation runs into R.H.flapped door situation, transmitting torque is to middle shift fork 602 and outer shift fork 601 simultaneously only to need to guarantee a handle, and another handle transmitting torque is given interior shift fork 603, thereby realizes easily the exchange of left and right opening door.

The above, be only preferred embodiment of the present invention, not technology contents of the present invention done to any pro forma restriction.Any simple modification, equivalent variations and modification that every foundation technical spirit of the present invention is done above embodiment, all still belong in the scope of technical scheme of the present invention.

Claims

1. a novel mortise door lock, include lock housing (1), latch bolt assembly (2) is installed in lock housing, side's tongue assembly (3) and can drive latch bolt assembly or/and the transmission mechanism (4) in square tongue assembly retraction lock housing, the position-limit mechanism (5) that is used for the side's of locking tongue assembly (3), it is characterized in that described transmission mechanism (4) includes the active pull-fork assembly (6) that can be driven by handle, be hinged in lock housing (1) the driven shift fork (7) in can the side's of drive tongue retraction lock housing, be hinged on the release shift fork (8) of the restriction that can remove position-limit mechanism (5) in lock housing (1), in lock housing (1), be also provided with lock core mounting hole (101), in lock housing (1), be also provided with and can drive and make the secondary shift fork (12) in latch bolt retraction lock housing by lock core, wherein:

Described active pull-fork assembly (6) comprises outer shift fork (601), middle shift fork (602) and interior shift fork (603), and three is equipped with and can realizes the square hole that moment of torsion transmits by plug-in mounting handle; Outer shift fork and interior shift fork top are respectively equipped with the shifting block (9,10) that can drive in latch bolt retraction lock housing, and middle shift fork (602) is provided with the plectrum (11) that can drive driven shift fork (7), release shift fork (8) to rotate;

Described position-limit mechanism includes limiting tooth (301) on the side's of being located at tongue assembly (3), is located at the limiting plate (13) in lock housing (1), and limiting plate is provided with limiting tooth (301) and coordinates latch hole (1301); Described lock housing (1) is provided with two alignment pins (14,15), limiting plate (13) is provided with two gathering sills (16,17), two alignment pins (14,15) are respectively through two gathering sills (16,17), and limiting plate (13) can slide up and down under stressed effect in certain stroke; On limiting plate (13), be also provided with release shift fork (8) thus coordinate the upwards release pin (19) of jack-up limiting plate (13); In described lock housing (1), be also provided with and make the stressed limiting plate back-moving spring (18) down of limiting plate (13); Described side's tongue assembly (3) is provided with for the interspersed chute (23) of two alignment pins (14,15).

2. a kind of novel mortise door lock according to claim 1, is characterized in that being also provided with in described lock housing (1) initiatively pull-fork assembly back-moving spring (20), latch bolt back-moving spring (21).

3. a kind of novel mortise door lock according to claim 2, it is characterized in that being also provided with locking gear plate (22) on described square tongue assembly (3), locking gear plate (22) is provided with and can coordinates with alignment pin (14,15) the circular arc screens (2201) that realizes stepping locking.

4. a kind of novel mortise door lock according to claim 3, the square hole that it is characterized in that described outer shift fork (601), middle shift fork (602) and interior shift fork (603) on same axle center and size identical, three is stacked.