CN2495756Y

CN2495756Y - Door-in-door lock used for theft-proof door

Info

Publication number: CN2495756Y
Application number: CN 01231017
Authority: CN
Inventors: 应赤
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-07-21
Filing date: 2001-07-21
Publication date: 2002-06-19
Anticipated expiration: 2011-07-21

Abstract

The utility model relates to a door-in-door lock used for a theft-proof door, which belongs to the technical field of the lock. A door-in-door bolt of the present theft-proof door has the disadvantages that the prizing-proof performance is poor, and the self-locking function is not realized when the door is closed; thus, the door-in-door lock for a theft-proof door, which has the advantages of good shifting-proof performance and good prizing-proof performance is provided; in addition, the self-locking function can be realized when the door is closed. The utility model comprises a lock tongue, a trailing bar, a lock clamp, a lock clamp torsion spring, a lock shell, pins, sliding rods, a fixed column, a shifting fork torsion spring, a shifting fork, a panel and a turn knob. The utility model has the key point that a stationary shaft which is installed on the turn knob of the shifting fork is inserted into a straight slot of the trailing bar and a shaft hole of the lock shell, a chute is respectively arranged on the upper and the lower sliding rods, and the head parts of the two pins, which are fixed on the trailing bar are respectively inserted into diagonal chutes of the two sliding rods. When the utility model is used, the door-in-door of the theft-proof door can be opened by rotating the turn knob, and the door-in-door of the theft-proof door can be locked automatically when the door is closed. Thus, the utility model can be particularly used as the door-in door lock of the theft-proof door.

Description

Door in door lock on the security door

Technical field

The utility model belongs to lock technology field, particularly a kind of door in door lock that is applicable on the security door.

Background technology

Have on the security door of ventilation function, a wicket, i.e. door in door on the security door generally also are being housed on the ventilation window of security door.When needing to give room ventilation, open the door in door on the security door; Personnel go out or when not needing to room ventilation, shut the door in door on the security door.In order to prevent that the stranger from opening the door in door on the security door of closing, latch is housed all generally on the door in door of existing security door.In use, latch exists the pick-proof poor performance, can not automatically lock the inaesthetic weak point of profile at closing time.

Summary of the invention

The utility model at the existing pick-proof poor performance of latch on the door in door of existing security door, can not automatically lock at closing time, the inaesthetic weak point of profile, a kind of door in door three-dimensional locking that makes on the security door is provided, anti-dial, the pick-proof performance is good, good looking appearance, the security door door in door that uses on the door in door that is applicable to security door that can automatically lock at closing time lock.

The technical solution adopted in the utility model is finished in the following way: the door in door lock on the security door comprises 1 solid dead bolt, 1 block of planker, 1 touching lever, 1 pintle hook lock, 1 pintle hook lock torsion spring, 1 lock housing, 2 pins, 2 sliding bars, 1 fixed leg A, 1 shift fork torsion spring, 1 shift fork, 1 hollow dead bolt, 1 panel, 1 fixed leg B, 1 knob.Wherein, panel and lock housing are fixed together, solid dead bolt and hollow dead bolt are inserted in respectively in the dead bolt hole of panel, the afterbody of solid dead bolt and hollow dead bolt is fixed on the head of planker, touching lever is contained in the pore of hollow dead bolt, fixed leg A and fixed leg B are fixed on the lock housing, pintle hook lock and pintle hook lock torsion spring are installed on the fixed leg B successively, knob on the shift fork installs and fixes axle and is inserted in the straight runner and the axis hole on the lock housing on the planker, the shift fork torsion spring is contained on the torsion axis of shift fork, one end of shift fork torsion spring is stuck on the fixed leg A, the other end of shift fork torsion spring is stuck on the shift fork, on 2 sliding bars, have 1 oblique chute, 2 sliding bars are inserted in respectively in the slot that slides up and down bar of lock housing, 2 pins are fixed on the planker, and the head of 2 pins is inserted in respectively in the oblique chute on 2 sliding bars, and the knob that knob is contained on the shift fork installs and fixes on the axle.During use, turning knob, knob drives shift fork and rotates, shift fork drives planker by sliding in the lock slots of the locking key on the shift fork on planker and moves backward, make solid dead bolt and hollow dead bolt retraction, 2 pins on the planker drive 2 sliding bar retractions simultaneously, and then the door in door on the security door can be opened, at this moment the locking key on the shift fork is blocked by buckle, and solid dead bolt and hollow dead bolt can not stretch out; During door in door on closing security door, because doorframe and touching lever bump, under the promotion of touching lever, buckle is moved, thereby make shift fork break away from buckle, shift fork rotates by the torsion of shift fork torsion spring, and then the drive planker moves forward, solid dead bolt and hollow dead bolt are stretched out, 2 sliding bars of 2 pins drives on the planker stretch out simultaneously, then the door in door on the security door is automatically locked, at this moment the locking key on the shift fork is stuck on the lock slots on the planker automatically, thereby has realized the self-locking of door lock.

Latch is compared on the door in door of door in door on the utility model security door lock and existing security door, has the door in door three-dimensional locking that can make on the security door, anti-ly dials, the pick-proof performance is good, good looking appearance, the characteristics that can automatically lock at closing time.The utility model is particularly suitable as a kind of door lock that is used for door in door on the security door.

Description of drawings

Fig. 1 is the structural representation of the door in door lock on the security door.Wherein (1) represents solid dead bolt; (2) expression planker; (3) expression touching lever; (4) expression pintle hook lock; (5) expression pintle hook lock torsion spring; (6) expression lock housing; (7) expression pin; (8) expression sliding bar; (9) expression fixed leg A; (10) expression shift fork torsion spring; (11) expression shift fork; (12) represent oblique chute; (13) represent hollow dead bolt; (14) expression panel; (15) expression fixed leg B; (16) expression straight runner.

Fig. 2 is the left view of Fig. 1.Wherein (17) represent knob.

The specific embodiment

Contrast accompanying drawing below, the utility model is described in further detail by embodiment.

With reference to accompanying drawing 1 and accompanying drawing 2, the door in door lock on the utility model security door comprises 1 solid dead bolt (1), 1 block of planker (2), 1 touching lever (3), pintle hook lock (4), 1 pintle hook lock torsion spring (5), 1 lock housing (6), 2 pins (7), 2 sliding bars (8), 1 fixed leg A (9), 1 shift fork torsion spring (10), 1 shift fork (11), 1 hollow dead bolt (13), 1 panel (14), 1 fixed leg B (15), 1 knob (16).Wherein, be fixed together by the fastener bolt nut between panel (14) and the lock housing (6); Solid dead bolt (1) is inserted in respectively in the dead bolt hole of panel (14) with hollow dead bolt (13), and solid dead bolt (1) is fixed together with the afterbody of hollow dead bolt (13) and the head of planker (2), and touching lever (3) is contained in the pore of hollow dead bolt (13); Fixed leg A (9) and fixed leg B (15) are fixed on the lock housing (6); Pintle hook lock (4) and pintle hook lock torsion spring (5) are installed on the fixed leg B (15) successively; Knob on the shift fork (11) installs and fixes axle and is inserted in the straight runner (16) and the axis hole on the lock housing (6) on the planker (2); Shift fork torsion spring (10) is contained on the torsion axis of shift fork (11), and an end of shift fork torsion spring (10) is stuck on the fixed leg A (9), and the other end of shift fork torsion spring (10) is stuck on the shift fork (11); Have 1 oblique chute (12) on 2 sliding bars (8), 2 sliding bars (8) are inserted in respectively in the slot that slides up and down bar of lock housing (6); 2 pins (7) are fixed on the planker (2), and the head of 2 pins (7) is inserted in respectively in the oblique chute (12) on 2 sliding bars (8); The knob that knob (17) is contained on the shift fork (11) installs and fixes on the axle.

Claims

1, door in door lock on a kind of security door, it is characterized in that the door in door lock on this security door comprises 1 solid dead bolt (1), 1 block of planker (2), 1 touching lever (3), pintle hook lock (4), 1 pintle hook lock torsion spring (5), 1 lock housing (6), 2 pins (7), 2 sliding bars (8), 1 fixed leg A (9), 1 shift fork torsion spring (10), 1 shift fork (11), 1 hollow dead bolt (13), 1 panel (14), 1 fixed leg B (15), 1 knob (16), wherein panel (14) is fixed together with lock housing (6), solid dead bolt (1) is inserted in respectively in the dead bolt hole of panel (14) with hollow dead bolt (13), solid dead bolt (1) is fixed on the head of planker (2) with the afterbody of hollow dead bolt (13), touching lever (3) is contained in the pore of hollow dead bolt (13), fixed leg A (9) and fixed leg B (15) are fixed on the lock housing (6), pintle hook lock (4) and pintle hook lock torsion spring (5) are installed on the fixed leg B (15) successively, knob on the shift fork (11) installs and fixes axle and is inserted in the straight runner (16) and the axis hole on the lock housing (6) on the planker (2), shift fork torsion spring (10) is contained on the torsion axis of shift fork (11), one end of shift fork torsion spring (10) is stuck on the fixed leg A (9), the other end of shift fork torsion spring (10) is stuck on the shift fork (11), on 2 sliding bars (8), have 1 oblique chute (12), 2 sliding bars (8) are inserted in respectively in the slot that slides up and down bar of lock housing (6), 2 pins (7) are fixed on the planker (2), the head of 2 pins (7) is inserted in respectively in the oblique chute (12) on 2 sliding bars (8), and the knob that knob (17) is contained on the shift fork (11) installs and fixes on the axle.