CN2440905Y

CN2440905Y - Internal installed security lock

Info

Publication number: CN2440905Y
Application number: CN 00239473
Authority: CN
Inventors: 杨富斌; 刘成开
Original assignee: ANFANG SPECIAL LOCK FACTORY ZHONGSHAN CITY
Current assignee: ANFANG SPECIAL LOCK FACTORY ZHONGSHAN CITY
Priority date: 2000-09-19
Filing date: 2000-09-19
Publication date: 2001-08-01
Anticipated expiration: 2010-09-19

Abstract

The utility model relates to a built-in security lock which comprises a lock head and lock body, wherein the lock body comprises a bottom casing, a face casing, a lining board, a main lock bolt and an inclined bolt, and the lock head is composed of an inner lock head and an outer lock head. The inner head and the outer lock head form a cross key butting and blocking type structure with four rows of beads, a drill preventing sleeve is sheathed on the outer lock head, and a poking fork is arranged between the inner lock head and the outer lock head which are connected and fixed into a whole through a lock head frame. The lock heads are vertically penetrated on a lock casing, and the position of the poking fork between the inner lock head and the outer lock head is corresponding to a poking mechanism of the main lock bolt. The utility model has the advantages of thin thickness, narrow width, good dill preventing performance, good prying preventing performance and good poke preventing performance, can maintain or replace locks without disassembling the lock body.

Description

A kind of built-in type theftproof lock

The utility model relates to a kind of lock, particularly relates to a kind of built-in lock that is installed on security door.

Existing theftproof lock, of a great variety, function is different.But make a general survey of various theftproof locks, particularly be installed on the security door, all thickness and the width because of lock body is big, brings inconvenience for the installation of lock, and anti-drilling, the pick-proof of lock, anti-performance of pulling out is not good enough yet, can not satisfy the requirement of security door to built-in lock; And break down will keep in repair or change the time when tapered end, need unload whole lock body down, very inconvenient.

The purpose of this utility model provides that a kind of lock thickness is thin, width is narrow; Anti-drilling, pick-proof, the anti-performance of pulling out are good; The built-in type theftproof lock that tapered end can be easy to remove and repair.

For reaching above-mentioned purpose, built-in type theftproof lock provided by the utility model, comprise tapered end and lock body, lock body comprises drain pan, face-piece, liner plate, main dead bolt and oblique tongue, main dead bolt and oblique tongue wherein are housed on drain pan, and main dead bolt is provided with a push rod, and tiltedly tongue is provided with one " L " shape shifting block, " L " shape shifting block is provided with an oblique tongue dial hole, connects by push rod and " L " shape shifting block between main dead bolt and the oblique tongue; Drain pan and face-piece are formed a lock housing and are fixed on the liner plate, described tapered end is made up of inner lock head and outer tapered end, inner lock head and outer tapered end are cross-key four row's pellet shot from a slingshot top shelves formula structures, be with an anti-drill bushing on the tapered end outside again, wherein be provided with a shift fork between inner lock head and the outer tapered end, inside and outside tapered end is connected and fixed by the tapered end frame becomes one; Described tapered end vertically interts on lock housing, and with a screw on lock housing, the position correspondence of the shift fork between inside and outside tapered end is on the toggle mechanism of main dead bolt.

As a kind of improvement of the present utility model, also be provided with an insurance spring bolt mechanism in the lock body, this mechanism comprises knob core, knob shift fork, torsion spring, pendulum clamp dog, insurance dead bolt, described knob core is contained on the drain pan, the knob shift fork is housed on the knob core, be provided with a torsion spring between pendulum clamp dog and the drain pan, the knob shift fork contacts with pendulum clamp dog and insurance dead bolt.

As another kind of improvement the of the present utility model, this lock is provided with an Internal handle, Internal handle is contained on the inner trim panels, inner trim panels is contained in a side of lock body and is fixed on the inwall of door, wherein be provided with a square torsion bar in the Internal handle, the end that square torsion bar contacts with Internal handle is equipped with a spring, and the other end is inserted in the oblique tongue dial hole; Be provided with an insurance knob on described inner trim panels, on the insurance knob knob square shaft be housed, the knob square shaft is inserted in the knob in-core.

As another kind of improvement the of the present utility model, this lock is provided with an Internal handle and outer handle, and Internal handle is contained on the inner trim panels, and outer handle is contained on the balustrade exterior panelling, and inside and outside again decorative panel is contained in the both sides of lock body, is separately fixed on the inside and outside wall of door; Internal handle is connected by a square torsion bar with outer handle, and square torsion bar passes oblique tongue dial hole, and the end that square torsion bar contacts with outer handle is equipped with a spring; Be provided with an insurance knob on described inner trim panels, on the insurance knob knob square shaft be housed, the knob square shaft is inserted in the knob in-core.

As another kind of improvement the of the present utility model, be separately installed with pulling block and lower drawing block at the lock body upper and lower.

The utlity model has following characteristics:

(1) its tapered end is made up of inside and outside tapered end, the top latch device is arranged between inside and outside tapered end, when using key operated inner lock head to drive shift fork, be not subjected to the interference of outer tapered end, and when using key operated external lock head to drive shift fork, be not subjected to the influence of inner lock head yet, thereby reach the purpose that to use the smooth open and close lock of inside and outside tapered end separately; When tapered end needs repairing or changes, insert key in tapered end, the rotation shift fork just can wholely tapered end be extracted out in lock body in the appropriate location, and does not need to unload maintenance or the replacing that lock body carries out tapered end; Inside and outside tapered end adopts cross-key four row's pellet shot from a slingshot top shelves formula structures, has increased the secret key amount of lock, has reduced the mutual opening rate of lock, thereby has strengthened the function of keeping secret of lock; Outer tapered end is owing to be with an anti-drill bushing and inside and outside tapered end shift fork when not inserting key withstands in the lock housing with, thereby has anti-drilling, pick-proof, prevents the function of pulling out.

(2) it is provided with independent insurance spring bolt mechanism, when indoor will insure dead bolt and be threaded to lock-out state the time, and outdoor can not unblanking, thus reach function in indoor insurance; This mechanism can make the insurance dead bolt be locked in and stretch out or retracted position, thereby has avoided occurring because the pernicious consequence that mistake is closed the door and oblique tongue or relevant tiltedly tongue part is damaged can not open door or can not opens because the vibration of closing the door skids off the insurance dead bolt.

(3) owing to be provided with push rod and " L " shape shifting block in the lock body, make key can not only control main dead bolt and open, can also open oblique tongue, Internal handle promptly only is installed, significantly improved lock like this and be contained in door and go up tamper-resistant function afterwards so the utility model can only be installed single-grip; Double handle also can be installed simultaneously inside and outside handle promptly is installed simultaneously, make like this be locked in use to go up more convenient.

(4) the utility model can optionally be installed pulling block and lower drawing block, constitutes the world lock of Three-bearing, and the stretching out synchronously or retraction of pulling block and lower drawing block and main dead bolt in applications can drive a plurality of dead points device on the security door, thus the raising theftproof performance.

(5) owing to adopted said structure, make lock thickness size of the present utility model thinner, width dimensions is narrower, lock is installed for door and has been brought convenience.

Below in conjunction with drawings and Examples structure of the present utility model is further described.

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

Fig. 2 is the sectional view of Fig. 1 along the A-A line;

Fig. 3 presses the structural representation that single-grip is installed for the utility model;

Fig. 4 presses the structural representation that double handle is installed for the utility model;

Fig. 5 is equipped with the structural representation of pulling block and lower drawing block for the utility model.

As shown in Figure 1, 2, the utility model built-in type theftproof lock, comprise tapered end and lock body, lock body comprises drain pan 1, face-piece 2, liner plate 3, main dead bolt 4 and oblique tongue 5, main dead bolt 4 and oblique tongue 5 wherein are housed on drain pan 1, and main dead bolt 4 is provided with a push rod 6, and tiltedly tongue 5 is provided with one " L " shape shifting block 7, " L " shape shifting block 7 is provided with an oblique tongue dial hole 8, connects by push rod 6 and " L " shape shifting block 7 between main dead bolt 4 and the oblique tongue 5; Drain pan 1 and face-piece 2 are formed a lock housing and are fixed on the liner plate 3; Tapered end is made up of inner lock head 9 and outer tapered end 10, inner lock head 9 and outer tapered end 10 are cross-key four row's pellet shot from a slingshot top shelves formula structures 11, be with an anti-drill bushing 12 on the tapered end 10 outside again, wherein be provided with a shift fork 13 between inner lock head 9 and the outer tapered end 10, inside and outside

tapered end

9,10 is connected and fixed by tapered end frame 14 becomes one; Tapered end vertically interts on lock housing, and is fixed on the lock housing with a screw 15, and the position correspondence of the shift fork 13 that inside and outside tapered end is 9,10 is on the toggle mechanism 16 of main dead bolt 4; Be separately installed with pulling block 31 and lower drawing block 32 at the upper and lower of lock body, as shown in Figure 5; Also be provided with an insurance spring bolt mechanism in the lock body, this mechanism comprises knob core 17, knob shift fork 18, torsion spring 19, pendulum clamp dog 20, insurance dead bolt 21, knob core 17 is contained on the drain pan 1, knob shift fork 18 is housed on the knob core 17, be provided with a torsion spring 19 between pendulum clamp dog 20 and the drain pan 1, knob shift fork 18 contacts with pendulum clamp dog 20 and insurance dead bolt 21.

As a kind of embodiment of the present utility model, as shown in Figure 3, on the basis of said structure, this lock is provided with an Internal handle 22, and Internal handle 22 is contained on the inner trim panels 23, and inner trim panels 23 is contained in a side of lock body and is fixed on the inwall of door; Wherein be provided with a square torsion bar 24 in the Internal handle 22, the end that square torsion bar 24 contacts with Internal handle 22 is equipped with a spring 25, and the other end is inserted in the oblique tongue dial hole 8; Be provided with an insurance knob 26 on inner trim panels 23, on the insurance knob 26 knob square shaft 27 be housed, knob square shaft 27 is inserted in the knob core 17.

As another kind of embodiment of the present utility model, as shown in Figure 4, on the basis of said structure, this lock is provided with an Internal handle 22 and an outer handle 28, Internal handle 22 is contained on the inner trim panels 23, outer handle 28 is contained on the balustrade exterior panelling 29, and inside and outside again

decorative panel

23,29 is contained in the both sides of lock body, is separately fixed on the inside and outside wall of door; Internal handle 22 is connected by a square torsion bar 30 with outer handle 28, and square torsion bar 30 passes oblique tongue dial hole 8, and the end that square torsion bar 30 contacts with outer handle 28 is equipped with a spring 25; Be provided with an insurance knob 26 on inner trim panels 23, on the insurance knob 26 knob square shaft 27 be housed, knob square shaft 27 is inserted in the knob core 17.

During use,, can control the opening and closing that main dead bolt is made secondary opening and closing and oblique tongue, use outer handle also can open oblique tongue simultaneously with key outdoor; Indoor, can control the opening and closing that main dead bolt is made secondary opening and closing and oblique tongue with key, also available Internal handle is opened oblique tongue simultaneously, and the opening and closing of insurance dead bolt are with insuring knob controlling.

Claims

1, a kind of built-in type theftproof lock, comprise tapered end and lock body, lock body comprises drain pan (1), face-piece (2), liner plate (3), main dead bolt (4) and oblique tongue (5), main dead bolt (4) and oblique tongue (5) wherein are housed on drain pan (1), main dead bolt (4) is provided with a push rod (6), tiltedly tongue (5) is provided with one " L " shape shifting block (7), and " L " shape shifting block (7) is provided with an oblique tongue dial hole (8), connects by push rod (6) and " L " shape shifting block (7) between main dead bolt (4) and the oblique tongue (5); Drain pan (1) and face-piece (2) are formed a lock housing and are fixed on the liner plate (3), it is characterized in that: described tapered end is made up of inner lock head (9) and outer tapered end (10), inner lock head (9) and outer tapered end (10) are cross-key four row's pellet shot from a slingshot top shelves formula structures (11), be with an anti-drill bushing (12) on the tapered end (10) outside again, wherein be provided with a shift fork (13) between inner lock head (9) and the outer tapered end (10), inside and outside tapered end (9,10) is connected and fixed by tapered end frame (14) becomes one; Described tapered end vertically interts on lock housing, and is fixed on the lock housing with a screw (15), and the position correspondence of the shift fork (13) between inside and outside tapered end (9,10) is on the toggle mechanism (16) of main dead bolt (4).

2, built-in type theftproof lock as claimed in claim 1, it is characterized in that: also be provided with an insurance spring bolt mechanism in the lock body, this mechanism comprises knob core (17), knob shift fork (18), torsion spring (19), pendulum clamp dog (20), insurance dead bolt (21), described knob core (17) is contained on the drain pan (1), knob shift fork (18) is housed on the knob core (17), be provided with a torsion spring (19) between pendulum clamp dog (20) and the drain pan (1), knob shift fork (18) contacts with pendulum clamp dog (20) and insurance dead bolt (21).

3, built-in type theftproof lock as claimed in claim 2, it is characterized in that: this lock is provided with an Internal handle (22), Internal handle (22) is contained on the inner trim panels (23), inner trim panels (23) is contained in a side of lock body and is fixed on the inwall of door, wherein be provided with a square torsion bar (24) in the Internal handle (22), the end that square torsion bar (24) contacts with Internal handle (22) is equipped with a spring (25), and the other end is inserted in the oblique tongue dial hole (8); Be provided with an insurance knob (26) on described inner trim panels (23), on the insurance knob (26) knob square shaft (27) be housed, knob square shaft (27) is inserted in the knob core (17).

4, built-in type theftproof lock as claimed in claim 2, it is characterized in that: this lock is provided with an Internal handle (22) and outer handle (28), Internal handle (22) is contained on the inner trim panels (23), outer handle (28) is contained on the balustrade exterior panelling (29), inside and outside again decorative panel (23,29) is contained in the both sides of lock body, is separately fixed on the inside and outside wall of door; Internal handle (22) is connected by a square torsion bar (30) with outer handle (28), and square torsion bar (30) passes oblique tongue dial hole (8), and the end that square torsion bar (30) contacts with outer handle (28) is equipped with a spring (25); Be provided with an insurance knob (26) on described inner trim panels (23), on the insurance knob (26) knob square shaft (27) be housed, knob square shaft (27) is inserted in the knob core (17).

5, as claim 1,2,3 or 4 described built-in type theftproof locks, it is characterized in that: be separately installed with pulling block (31) and lower drawing block (32) at the upper and lower of lock body.