CN200958305Y - Safety lock with post key - Google Patents

Abstract

The utility model discloses a new type of lock capable of anti-theft function through rear built-in keys, which comprises a front key, a mid-ship lock plunger, a lock plunger shell, a built-in plunger tension device, a rear lock body core, a rear lock body shift fork and a knob, characterized in that: the mid-ship lock plunger is provided inside the plunger shell; a front and a rear lock core connecting hole are provided in the middle part of the mid-ship lock plunger; at least three shift fork pins are alternatively provided in the shift fork grooves at the bottom of the front and the rear lock core connecting holes; the built-in plunger tension device props shift fork pins of the mid-ship lock plunger; the exposed portion of the rear lock shift fork of the rear lock body core positioned in the rear lock body, close to the mid-ship lock plunger, is placed in the front and the rear lock core connecting holes in the middle part of the mid-ship lock plunger, while the exposed portion of the front lock body core at the other side of the mid-ship lock plunger, towards the mid-ship lock plunger, is placed in the lock core hole of the rear lock body; the front key with a long key end dives into the lock core hole of the rear lock body to rotate the lock body core, and rotation of the lock body core makes the rear lock body shift fork control movement of the mid-ship lock plunger to realize opening and closing of doors.

Description

Anti-theft feature is the new-type lock of the built-in key in back

Affiliated technical field:

The utility model relates to a kind of lock, relates in particular to the new-type lock of a kind of anti-theft feature for the built-in key in back.

Background technology:

Generally speaking, family is safe, the thief just walks crosswise as the mean creatures but sleep soundly in the nobody home and the late into the night constantly, but present lock theftproof performance is very poor, and it has shortcoming to be, lock body lock core switch locking bolt before adopting, before the lock body lock core connect small iron plate braking locking bolt, and preceding lock body lock core all is exposed to outdoors, current lock body lock core is knocked all can drop the time by weight, stick up the bolt of unblanking opening door with regard to available screwdriver, and stolen.

Summary of the invention:

When the purpose of this utility model was to provide a kind of current lock body lock core destroyed, the anti-theft feature that locking bolt can not be stuck up out was the new-type lock of the built-in key in back.

The purpose of this utility model is to realize like this, described anti-theft feature is the new-type lock of the built-in key in back, comprise preceding lock body, preceding lock body lock core, preceding key, mid-locking bolt, dead bolt, the locking bolt shell, the moving device of built-in locking bolt joint, rear locking, the rear locking lock core, the rear locking shift fork, rearmounted key, rearmounted key cover, knob and front and back lock core connecting hole, its design feature is built-in with mid-locking bolt for the locking bolt shell, be provided with the front and back lock core connecting hole and around the front and back lock core connecting hole, be provided with fork slot at mid-locking bolt medium position, in the fork slot of the bottom of front and back lock core connecting hole, be provided with at least three shifting fork pin spaced apart; Between mid-locking bolt and locking bolt housing back wall, be provided with elastomeric spring; The moving device of built-in locking bolt joint place below the locking bolt shell middle part and and locking bolt shell middle part below the support spring resiliency supported is arranged, the shifting fork pin of the mid-locking bolt in top on the moving device of built-in locking bolt joint between the diapire; The rear locking shift fork that is exposed that the described rear locking lock core that is contained in the rear locking relies on mid-locking bolt one side inserts in the front and back lock core connecting hole of mid-locking bolt medium position, and the exposed portions serve that relies on mid-locking bolt side that is positioned at the preceding lock body lock core of mid-locking bolt opposite side is presented to the rear locking lock core hole; The key of rearmounted key partly is inserted in the rear locking lock core, and its back shank places rearmounted key cover; One restoring spring is enclosed within on the back shank of rearmounted key and the one end withstands on the rearmounted key front end, the other end withstands on the rearmounted key cover base wall, and the rear end of rearmounted key is stretched out from the rear portion perforate of rearmounted key cover and is connected to knob; Key adopts its front portion can arrive the long shape type key end of rear locking lock core behind preceding lock body lock core before described.The purpose of this utility model also can be achieved through the following technical solutions, described anti-theft feature is the new-type lock of the built-in key in back, its characteristics are for being provided with the remote controller plug housing on rearmounted key cover, the remote controller plug housing is a central hollow, the side of remote controller plug housing is provided with the remote controller latch that can insert the remote controller pin hole, the remote controller latch is driven by fractional motor, and described remote controller pin hole can be communicated with the remote controller pin hole that rearmounted key cover is provided with.Described anti-theft feature is the new-type lock of the built-in key in back, and its characteristics are the dead bolt bevel dead bolt at mid-locking bolt front end.

The utlity model has following characteristics, because lock body, front and back lock body lock core and front and back key acting in conjunction locking bolt move open and close door before and after adopting, preceding lock body lock core is hidden within the door-plate, can not be knocked by weight and drop, the rear locking key is hidden in rear locking inner control rear lock core rotation drive locking bolt and moves, thereby current lock body lock core is when destroyed, rear lock core since lock core hole sealed by key thereby can't stick up out by force with screwdriver or other instrument; The utility model also can install alarm additional, when door all can be sounded warning by sharp pounding, causes that as people's shakedown door vibrations will sound warning like this, this sound warn especially for evening people all be necessary in bed; When the head of a family only turned the key in the lock or locks a door, alarm did not send chimes of doom, had only with after the locking remote controller during built-in key, and alarm just works; During built-in key, alarm is just inoperative, does not just report to the police after without locking remote controller; When common people are in the inside, when the built-in key in back needs only knob right rotation proper angle, the built-in key card in back all can't promote in the rear locking lock core, even the key that other people adopt original key to copy, also can't insert the rear locking lock core promotes to contract behind the built-in key in back, therefore shooting the lock-bolt can't open door.The utlity model has simple in structure, both artistic and practical, convenient, sound characteristics such as warn.

Description of drawings:

Fig. 1 analyses and observe perspective view for the utility model right side.

Fig. 2 analyses and observe perspective view for the utility model left side.

Fig. 3 is the utility model exploded perspective structure chart.

Fig. 4 is the utility model STRUCTURE DECOMPOSITION schematic diagram.

Fig. 5 is a preceding key perspective view of the present utility model.

Among the figure: preceding lock body 1, preceding lock body lock core 2, preceding key 3, mid-locking bolt 4, dead bolt 5, locking bolt shell 6, the moving device 7 of built-in locking bolt joint, rear locking 8, rear locking lock core 9, rear locking shift fork 10, rearmounted key 11, rearmounted key cover 12, knob 13, remote controller plug housing 14, front and back lock core connecting hole 15, fork slot 16, shifting fork pin 17, restoring spring 18, support spring 19, elastomeric spring 20.

The specific embodiment:

Below in conjunction with accompanying drawing and example structure of the present utility model and operating principle and the course of work are elaborated:

As Fig. 1, Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5, the utility model comprises: preceding lock body 1, preceding lock body lock core 2, preceding key 3, mid-locking bolt 4, dead bolt 5, locking bolt shell 6, the moving device 7 of built-in locking bolt joint, rear locking 8, rear locking lock core 9, rear locking shift fork 10, rearmounted key 11, rearmounted key cover 12, knob 13, remote controller plug housing 14, front and back lock core connecting hole 15, fork slot 16, shifting fork pin 17, restoring spring 18, support spring 19 and elastomeric spring 20, its design feature: locking bolt shell 6 is built-in with mid-locking bolt 4, be provided with front and back lock core connecting hole 15 and around front and back lock core connecting hole 15, be provided with fork slot 16 at mid-locking bolt 4 medium positions, in the bottom of front and back lock core connecting hole 15 fork slot 16, be provided with at least three shifting fork pin 17 spaced apart; Being provided with elastomeric spring 20 between mid-locking bolt 4 and locking bolt shell 6 rear walls can eject dead bolt, and the dead bolt 5 of mid-locking bolt 4 can eject outside locking bolt shell 6 front ends, is convenient to close the door fasten the doorframe of security door; The moving device 7 of built-in locking bolt joint place below locking bolt shell 6 middle parts and and locking bolt shell 6 middle parts below support spring 19 resiliency supported are arranged between the diapire, the shifting fork pin 17 of the mid-locking bolt in top makes mid-locking bolt 4 location on the moving device 7 of built-in locking bolt joint; The rear locking shift fork that is exposed 10 that the described rear locking lock core 9 that is contained in the rear locking 8 relies on mid-locking bolt 4 one sides inserts in the front and back lock core connecting hole 15 of mid-locking bolt 4 medium positions, and the exposed portions serve to mid-locking bolt 4 sides that is positioned at the preceding lock body lock core 2 of mid-locking bolt 4 opposite sides is presented to rear locking lock core 9 holes; The key of rearmounted key 11 partly is inserted in the rear locking lock core 9, and its back shank places rearmounted key cover 12, one restoring spring 18 is enclosed within on the back shank of rearmounted key 11 and the one end withstands on rearmounted key 11 front ends, the other end withstands on rearmounted key cover 12 base wall, and the rear end of rearmounted key 11 is stretched out from the rear portion perforate of rearmounted key cover 12 and is connected to knob 13.The key end of key 3 is long shape type before described, the front portion of the key end of feasible preceding key 3 can arrive the rearmounted key of rear locking lock core 9 promotions and contract backward behind preceding lock body lock core 2, can drive 9 rotations of rear locking lock core by key 3 before rotating like this and make 10 rotations of rear locking shift fork so that mid-locking bolt 4 moves forward and backward.The utility model can also be provided with remote controller plug housing 14 on rearmounted key cover 12, remote controller plug housing 14 is a central hollow, its side is provided with the remote controller pin hole that the remote controller latch can insert, the remote controller latch is driven by fractional motor, this remote controller pin hole can be communicated with the remote controller pin hole that rearmounted key cover 12 is provided with, start the back shank that withstands rearmounted key 11 after making the remote controller latch drive insert the remote controller pin hole by fractional motor when remote controller, even the key that other people adopt original key to copy, also can't insert the rear locking lock core and promote to contract behind the built-in thereafter key, shooting the lock-bolt is opened door.Dead bolt 5 bevel dead bolts at mid-locking bolt 4 front ends.

Claims (3)

1, a kind of anti-theft feature is the new-type lock of the built-in key in back, comprise preceding lock body (1), preceding lock body lock core (2), preceding key (3), mid-locking bolt (4), dead bolt (5), locking bolt shell (6), the moving device (7) of built-in locking bolt joint, rear locking (8), rear locking lock core (9), rear locking shift fork (10), rearmounted key (11), rearmounted key cover (12), knob (13) and front and back lock core connecting hole (15), it is characterized in that locking bolt shell (6) is built-in with mid-locking bolt (4), be provided with front and back lock core connecting hole (15) and around front and back lock core connecting hole (15), be provided with fork slot (16) at mid-locking bolt (4) medium position, in the bottom fork slot (16) of front and back lock core connecting hole (15), be provided with at least three shifting fork pin (17) spaced apart; Between mid-locking bolt (4) and locking bolt shell (6) rear wall, be provided with elastomeric spring (20); The moving device (7) of built-in locking bolt joint place below locking bolt shell (6) middle part and and locking bolt shell (6) middle part below support spring (19) resiliency supported is arranged between the diapire, the moving device (7) of built-in locking bolt joint is gone up the shifting fork pin (17) of the mid-locking bolt in top; The rear locking shift fork (10) that is exposed that the described rear locking lock core (9) that is contained in the rear locking (8) relies on mid-locking bolt (4) one sides inserts in the front and back lock core connecting hole (15) of mid-locking bolt (4) medium position, and the exposed portions serve that relies on mid-locking bolt (4) side that is positioned at the preceding lock body lock core (2) of mid-locking bolt (4) opposite side is presented to rear locking lock core (9) hole; The key of rearmounted key (11) partly is inserted in the rear locking lock core (9), and its back shank places rearmounted key cover (12); One restoring spring (18) is enclosed within on the back shank of rearmounted key (11) and the one end withstands on rearmounted key (11) front end, the other end withstands on rearmounted key cover (12) base wall, and the rear end of rearmounted key (11) is stretched out from the rear portion perforate of rearmounted key cover (12) and is connected to knob (13); Key (3) adopts its front portion can arrive the long shape type key end of rear locking lock core (9) behind preceding lock body lock core (2) before described.

2,1 described anti-theft feature is the new-type lock of the built-in key in back as requested, it is characterized in that on rearmounted key cover (12), being provided with remote controller plug housing (14), remote controller plug housing (14) is a central hollow, the side of remote controller plug housing (14) is provided with the remote controller latch that can insert the remote controller pin hole, the remote controller latch is driven by fractional motor, and described remote controller pin hole can be communicated with the remote controller pin hole that rearmounted key cover (12) are provided with.

3,1 or 2 described anti-theft features are the new-type lock of the built-in key in back as requested, it is characterized in that dead bolt (5) the bevel dead bolt at mid-locking bolt (4) front end.

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