CN2705545Y

CN2705545Y - Anti-theft door lock without external lock hole

Info

Publication number: CN2705545Y
Application number: CN 200420034800
Authority: CN
Inventors: 雷明宏
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-05-14
Filing date: 2004-05-14
Publication date: 2005-06-22
Anticipated expiration: 2014-05-14

Abstract

The utility model relates to a kind of security door door lock that does not have external lockhole, belongs to door lock, is suitable for being contained in the usefulness that door lock is made in the security door inboard.It includes main dead bolt assembly, secondary dead bolt assembly, several parts of lock housing and lock core, with secondary dead bolt assembly, after lock core and main dead bolt assembly are fixed on correct position set in the lock housing from top to bottom successively, secondary dead bolt shift fork one end is passed set slotted eye on the secondary dead bolt axle, other end activity is fixed on down on the steady pin set on the dead bolt tooth plate, to be fixed on again and pass in the plate washer hole that is located on the lock housing after axle sleeve on the upper lock tongue tooth plate is gone into spring, and will fix the activity of cranked axle and be fixed on the lock housing front-back, crank elbow tail end is placed tooth plate tail end sweep inboard, location, again at axle two ends difference fixing button handle.It is simple in structure, does not have external lockhole, and during the locking security door without key, have a extensive future.

Description

The security door door lock that does not have external lockhole

One, technical field:

The utility model relates to a kind of security door door lock that does not have external lockhole, belongs to door lock, is suitable for being contained in the usefulness that door lock is made in the security door inboard.

Two, background technology:

Existing security door door lock is the dual fail-safe door lock, plays certain effect to antitheft.Its weak point is: the security door door lock all has external lockhole, for the robber unblanks to provide condition by teasing the lock core hoodle, has reduced antitheft effect; Be exactly its locking in addition and all will use key when opening security door, use very inconvenient.So far, never have a kind of simple and reasonablely, do not have external lockhole, and during the locking security door without key, open the security door door lock that security door must key, for being installed in the usefulness that door lock is made in the security door inboard.

Three, summary of the invention:

The purpose of this utility model is to overcome existing security door door lock all external lockhole, the condition of destroying door lock is provided for the robber, anti-theft effect and locking have been reduced, open the weak point that security door all will use key, thereby provide a kind of security door door lock that does not have external lockhole, it is simple and reasonable, there is not external lockhole, in door, outer both sides are as long as get final product manual locking door lock by the button handle, the master is arranged, the selective use of secondary two cover dead bolts, can the secondary dead bolt of related unlatching when opening main dead bolt, and can not the main dead bolt of related unlatching when opening secondary dead bolt, main dead bolt can only could be opened with key, and a kind of door lock of novelty is provided for security door.

The purpose of this utility model realizes by following approach:

The utility model includes main dead bolt assembly, secondary dead bolt assembly, several parts of lock housing and lock core, with secondary dead bolt assembly, after lock core and main dead bolt assembly are fixed on correct position set in the lock housing from top to bottom successively, secondary dead bolt shift fork one end is passed set slotted eye on the secondary dead bolt axle, other end activity is fixed on down on the steady pin set on the dead bolt tooth plate, to be fixed on the upper lock tongue tooth plate again or pass in the hole that is located at the plate washer on the lock housing after down the axle sleeve on the dead bolt tooth plate is gone into spring, and will fix the activity of cranked axle and be fixed on the lock housing front-back, crank elbow tail end is placed tooth plate tail end sweep inboard, location, again at axle two ends difference fixing button handle.

Said main dead bolt assembly includes main dead bolt, following dead bolt tooth plate, the upper lock tongue tooth plate, several parts of location tooth plate, after being fixed on down main dead bolt on the dead bolt tooth plate one end flexure plane, main dead bolt is placed in the set main dead bolt hole of lock housing, the upper lock tongue tooth plate that will coincide each other and corresponding mutually placement of tooth plate groove of dead bolt tooth plate down, in the slotted eye of dead bolt tooth plate under the identical insertion of the curved edges of upper lock tongue tooth plate, and under reaching, the upper lock tongue tooth plate sets a tooth plate between the dead bolt tooth plate, tooth plate groove and the waist hole of upper lock tongue tooth plate and the waist hole corresponding placement mutually of dead bolt tooth plate down with the location tooth plate, the tooth plate groove that to locate tooth plate again places in the alignment pin set in the lock housing, and insert respectively in the set aperture of upper lock tongue tooth plate at the button spring two ends that will be fixed on the set staple of location tooth plate.Said positioning tooth wrench tail two ends all are bent upwards.

Said secondary dead bolt assembly includes secondary dead bolt, secondary dead bolt axle, spring and several parts of secondary dead bolt handle, and secondary dead bolt is fixed on an end of secondary dead bolt axle, and spring was fixed from holding with secondary dead bolt handle after the other end is inserted in secondary dead bolt axle.Said secondary dead bolt axle stage casing is provided with a slotted eye.Be fixed with the lock core crank in lock core the inner.

The utility model contrast prior art has following advantage:

1, the utility model does not have external lockhole, good anti-theft effect;

2, the utility model can pass through the manual locking door lock of the inside and outside direct control button handle of door, and is easy to use;

3, the utility model has major and minor two the cover dead bolts is optional and selects use, secondary dead bolt automatic blocking when closing door, and available handle opens, main dead bolt can only be with key operated.Can the secondary dead bolt of related unlatching when opening main dead bolt, opening secondary dead bolt then can not the main dead bolt of related unlatching.

Four, description of drawings:

Fig. 1 is the structural representation of the utility model embodiment, wherein:

Dead bolt tooth plate, the secondary dead bolt of 3-, 4-slotted eye, the secondary dead bolt shift fork of 5-, 6-lock housing, 7-lock core, 8-lock core crank, the secondary dead bolt handle of 9-, 10-upper lock tongue tooth plate, 11-plate washer, 12-spring, 13-axle, 14-hole, 15-button spring, the secondary dead bolt axle of 16-, 17-location tooth plate, 18-alignment pin, 19-steady pin, 20-spring, 21-axle, 22-crank, 25-master's dead bolt hole, the secondary dead bolt hole of 26-under the secondary dead bolt assembly of A-, B-master's dead bolt assembly, 1-master's dead bolt, the 2-.

Fig. 2 looks schematic diagram for the left side of the utility model embodiment Fig. 1, wherein:

34-button handle.

Fig. 3 is the structural representation of the utility model embodiment upper lock tongue tooth plate, wherein:

23-tooth plate groove, 27-curved edges, 31-waist hole, 33-aperture.

Fig. 4 locatees the structural representation of tooth plate for the utility model embodiment, wherein:

29-tooth plate groove, 32-staple.

Fig. 5 is the structural representation of dead bolt tooth plate under the utility model embodiment, wherein:

24-tooth plate groove, 28-slotted eye, 30-waist hole.

Five, the specific embodiment:

The utility model describes in detail below in conjunction with accompanying drawing embodiment:

The utility model embodiment includes main dead bolt assembly B, secondary dead bolt assembly A, lock housing 6 and lock core more than 7 parts, with secondary dead bolt assembly A, after lock core 7 and main dead bolt assembly B are fixed on correct position set in the lock housing 6 from top to bottom successively, secondary dead bolt shift fork 5 one ends are passed slotted eye 4 set on the secondary dead bolt axle 16, other end activity is fixed on down on the steady pin set on the dead bolt tooth plate 2 19, the axle 13 that will be fixed on again on the upper lock tongue tooth plate 10 passes in the hole 14 of the plate washer 11 that is located on the lock housing 6 after being inserted in spring 12, and axle 21 activities that will be fixed with crank 22 are fixed on lock housing 6 front-backs, crank 22 elbow tail ends are placed tooth plate 17 tail end sweep inboards, location, again at axle 21 two ends difference fixing button handle 34.

Said main dead bolt assembly B includes main dead bolt 1, following dead bolt tooth plate 2, upper lock tongue tooth plate 10, location tooth plate more than 17 parts, after being fixed on down main dead bolt 1 on the dead bolt tooth plate 2 one end flexure planes, main dead bolt 1 is placed in the set main dead bolt hole 25 of lock housing 6, the tooth plate groove 23 of the upper lock tongue tooth plate 10 that will coincide each other and corresponding mutually placement of tooth plate groove 24 of dead bolt tooth plate 2 down, in the slotted eye 28 of dead bolt tooth plate 2 under curved edges 27 identical insertions of upper lock tongue tooth plate 10, and under reaching, upper lock tongue tooth plate 10 sets a position tooth plate 17 between the dead bolt tooth plate 2, tooth plate groove 29 and the waist hole 31 of upper lock tongue tooth plate 10 and the waist hole 30 mutual corresponding placements of dead bolt tooth plate 2 down with location tooth plate 17, the tooth plate groove 29 that to locate tooth plate 17 again places in the alignment pins 18 set in the lock housing 6, and will be fixed on button spring 15 two ends on the set staple 32 of location tooth plate 17 and insert respectively in the set aperture 33 of upper lock tongue tooth plate 10.17 of said location tooth plates, tail two ends all are bent upwards.

Said secondary dead bolt assembly A includes secondary dead bolt 3, secondary dead bolt axle 16, spring 20 and secondary dead bolt handle more than 9 parts, secondary dead bolt 3 is fixed on an end of secondary dead bolt axle 16, after spring 20 is inserted in secondary dead bolt axle 16 from the other end, should hold with secondary dead bolt handle 9 fixing.Said secondary dead bolt axle 16 stage casings are provided with a slotted eye 4.Be fixed with lock core crank 8 in lock core 7 the inners.

During use, lock is contained in the security door inboard, lockhole be not set outdoors, inside and outside at door by knob handle 34, make axle 21 drive crank 22 rotations, thereby the power that overcomes button spring 15 moves to location tooth plate 17 and leaves alignment pin 18, at this moment promote main dead bolt 1 locking door lock by spring 12, set main dead bolt 1 can be selected to use, when opening main dead bolt 1 because the effect of secondary dead bolt shift fork can the secondary dead bolt 3 of related unlatching, opening secondary dead bolt 3 then can not the main dead bolt 1 of related unlatching, and main dead bolt 1 can only be opened with key.

Claims

1, a kind of security door door lock that does not have external lockhole, it is characterized in that: it includes main dead bolt assembly (B), secondary dead bolt assembly (A), lock housing (6) and several parts of lock core (7), with secondary dead bolt assembly (A), after lock core (7) and main dead bolt assembly (B) are fixed on correct position set in the lock housing (6) from top to bottom successively, secondary dead bolt shift fork (5) one ends are passed secondary dead bolt axle (16) go up set slotted eye (4), other end activity is fixed on down dead bolt tooth plate (2) and goes up on the set steady pin (19), to be fixed on upper lock tongue tooth plate (10) again or pass in the hole (14) of the plate washer (11) that is located on the lock housing (6) after down the axle (13) on the dead bolt tooth plate (2) is inserted in spring (12), and axle (21) activity that will be fixed with crank (22) is fixed on lock housing (6) front-back, crank (22) elbow tail end is placed tooth plate (17) tail end sweep inboard, location, again at axle (21) two ends difference fixing button handle (34).

2, security door door lock by the described no external lockhole of claim 1, it is characterized in that said main dead bolt assembly (B) includes main dead bolt (1), following dead bolt tooth plate (2), upper lock tongue tooth plate (10), several parts of location tooth plate (17), after being fixed on down main dead bolt (1) on dead bolt tooth plate (2) the one end flexure planes, main dead bolt (1) is placed in the set main dead bolt hole (25) of lock housing (6), the tooth plate groove (23) of the upper lock tongue tooth plate (10) that will coincide each other again and the corresponding mutually placement of tooth plate groove (24) of dead bolt tooth plate (2) down, in the slotted eye (28) of dead bolt tooth plate (2) under the identical insertion of the curved edges of upper lock tongue tooth plate (10) (27), and under reaching, upper lock tongue tooth plate (10) sets a tooth plate (17) between the dead bolt tooth plate (2), to locate the tooth plate groove (29) and the waist hole (31) of upper lock tongue tooth plate (10) and waist hole (30) the corresponding placement mutually of dead bolt tooth plate (2) down of tooth plate (17), the tooth plate groove (29) that to locate tooth plate (17) again places in the alignment pin (18) set in the lock housing (6), and insert respectively in the set aperture (33) of upper lock tongue tooth plate (10) at button spring (15) two ends that will be fixed on the set staple (32) of location tooth plate (17).

3,, it is characterized in that said location tooth plate (17) head, tail two ends all are bent upwards by the security door door lock of claim 1 and the described no external lockhole of claim 2.