CN2821069Y - Anti-theft door edge lock - Google Patents

Abstract

The utility model belongs to the technical field of locksets, particularly to an edge lock which is applicable to matching a door lock to be used on a burglarproof door. The utility model aims to solve the disadvantages of large volume, inflexible toggling and poor toggling prevention and prizing prevention performance of the existing edge lock for a burglarproof door to provide the edge lock for a burglarproof door, which has the advantages of small volume, flexible toggling and favorable toggling prevention and prizing prevention performance. The utility model comprises a panel, two latch bolt hooks, a short latch bolt sheet, a toggling sheet, a long latch bolt sheet, a lock box. The utility model is characterized in that the two latch bolt hooks are installed between the short latch bolt sheet and the long latch bolt sheet, springs are arranged between the two latch bolt hooks, the latch bolt hooks are connected with the short latch bolt sheet and the long latch bolt sheet by hinges, and the short latch bolt sheet and the long latch bolt sheet are fixedly connected together to form a latch bolt. When the utility model is used, a key is rotated in a lock core of the door lock, and the latch bolt is driven by a lock fork of the door lock and a linking mechanism of a shift lever to expand or retract; at the same time, the latch bolt hooks are driven to spread and retract, and thus, the edge lock can be unlocked or locked.

Description

Security door limit lock

Technical field

The novel lock technology field that belongs to of this use, particularly a kind of limit lock that is used with door lock on the security door that is applicable to.

Background technology

For improving the theftproof performance of security door, people set up the limit lock on security door, the limit lock is locked fork with the world in the door lock link together, and drive the switch of limit lock with the switch of door lock.It is big that existing security door limit is being latched in volume, stirs dumbly, anti-dials, the weak point of pick-proof poor-performing.

Summary of the invention

It is big that the utility model is locked existing volume at existing security door limit, stirs dumbly, anti-dials, the weak point of pick-proof poor-performing, provides a kind of volume little, stirs flexibly, the security door limit lock that anti-ly dial, the pick-proof performance is good.

The technical solution adopted in the utility model is finished in the following way: security door limit lock comprises panel, two dead bolt hooks, short strike plate, sliding piece, long strike plate, lock box.Wherein, two dead bolt hooks are installed between short strike plate and the long strike plate, are provided with spring between two dead bolt hooks; Link together by pin hinge between dead bolt hook and short strike plate and the long strike plate; Be fixed together the formation dead bolt by bearing pin between short strike plate and the long strike plate; Panel and lock box are fixed together; The sliding piece socket at the two ends up and down of lock box is passed at two of sliding piece respectively; The head of the dead bolt of the buckle of being made up of dead bolt hook, short strike plate and long strike plate is inserted in the dead bolt hole of panel, and the afterbody of the dead bolt of buckle is placed in the groove on the lock box inwall; Be provided with the slip pin on the dead bolt of buckle, the slip pin is inserted in the oblique chute and the straight runner on the lock box on the sliding piece.During installation, the utility model is contained in respectively on the security door of upper and lower of security door door lock, the world lock fork on driving lever on the sliding piece and security door door lock links together.The security door that the utility model security door limit lock is housed in use, use the key turns door lock core, move up and down by the world lock fork of door lock and the interlinked mechanism drive sliding piece of driving lever, and force in the oblique chute of slip pin on sliding piece on the buckle dead bolt and slide, thereby it is flexible to drive the buckle dead bolt, drive the dead bolt hook simultaneously and open, withdraw, realize the switching of limit lock.

The utility model security door limit lock and the phase-locked ratio in existing security door limit, it is little, simple in structure to have a volume, stir flexibly, the characteristics that anti-dial, the pick-proof performance are good have improved the theftproof performance of security door greatly, and the utility model is particularly suitable for the limit lock that is used with door lock on the security door.

Description of drawings

Fig. 1 is the structural representation of security door limit lock.

Fig. 2 is the left view of Fig. 1.

Fig. 3 is the structural representation of dead bolt hook.

Fig. 4 is the structural representation of lock box.

Fig. 5 is the left view of Fig. 4.

The specific embodiment

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

With reference to accompanying drawing 1 to accompanying drawing 5, the utility model security door limit lock comprises panel 1, two dead bolt hooks 2, spring 3, short strike plate 4, sliding piece 6, long strike plate 7, lock box 8, two dead bolt hooks 2 and spring 3 are installed between short strike plate 4 and the long strike plate 7, and the two ends of spring 3 are separately fixed on the spring fixed column 10 of two dead bolt hooks 2; Link together by bearing pin 5 hinges between dead bolt hook 2 and short strike plate 4 and the long strike plate 7; Be fixed together the formation dead bolt by bearing pin 5 between short strike plate 4 and the long strike plate 7; Panel 1 is fixed together with lock box 8; The sliding piece socket at the two ends up and down of lock box 8 is passed at two of sliding piece 6 respectively; The head of the dead bolt of the buckle of being made up of dead bolt hook 2, short strike plate 4 and long strike plate 7 is inserted in the dead bolt hole of panel 1, the afterbody of the dead bolt of buckle is placed in the groove on lock box 8 inwalls, be provided with slip pin 9 on the dead bolt of buckle, slip pin 9 is inserted in the oblique chute 12 and the straight runner 11 on the lock box 8 on the sliding piece 6.During installation, the utility model is contained in respectively on the security door of upper and lower of safe-guard door lock, and driving lever on sliding piece 6 of the present utility model and the lock fork of the world on the safe-guard door lock link together.

Claims (1)

1, a kind of security door limit lock, it is characterized in that this security door limit lock comprises panel (1), two dead bolt hooks (2), spring (3), short strike plate (4), sliding piece (6), long strike plate (7), lock box (8), two dead bolt hooks (2) and spring (3) are installed between short strike plate (4) and the long strike plate (7), the two ends of spring (3) are separately fixed on the spring fixed column (10) of two dead bolt hooks (2), link together by bearing pin (5) hinge between dead bolt hook (2) and short strike plate (4) and the long strike plate (7), be fixed together the formation dead bolt by bearing pin (5) between short strike plate (4) and the long strike plate (7), panel (1) is fixed together with lock box (8), the slide socket at the two ends up and down of lock box (8) is passed at two of sliding piece (6) respectively, by dead bolt hook (2), the head of the dead bolt of the buckle that short strike plate (4) and long strike plate (7) are formed is inserted in the dead bolt hole of panel (1), the afterbody of the dead bolt of buckle is placed in the groove on lock box (8) inwall, be provided with slip pin (9) on the dead bolt of buckle, slip pin (9) is inserted in the oblique chute (12) and the straight runner (11) on the lock box (8) on the sliding piece (6).

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