CN201169992Y - Pick-proof cylinder drawback lock - Google Patents

Abstract

The utility model relates to an antiprying tumbler door lock and belongs to the lockset technical field. The antiprying tumbler door lock comprises a lock shell, a handle, a safety button, a lock lever, a rectangular lock tongue and a lock tongue box. The antiprying night door lock is characterized in that the lock shell is provided with a dragooning device which is dragooned on the lock tongue and can block and withdraw the lock tongue in the lock shell when the lock tongue is not inserted into the lock tongue box; the dragooning device is an elastic piece with a hook on one end; one end of the elastic piece is fixed on the lock shell; the other end with the hook of the elastic piece is pressed on the end face of the lock tongue which does not extend out of the lock shell; and a spring is arranged between the elastic piece and the lock shell for offsetting after the end of the elastic piece with the hook is blocked and separated from the end face of the lock tongue. The antiprying tumbler door lock has the advantages that the tumbler door lock has a simple structure, low construction cost, convenient mounting and use and small damage to the door in mounting, and adopts the rectangular lock tongue; no matter the door is open or closed, the rectangular lock tongue is telescopic freely and has good antiprying performance; and the antiprying tumbler door lock has no disadvantages that the lock is easy to collide and hurt human limbs and hook clothes.

Description

The pick-proof pin tumbler lock

Technical field

The utility model belongs to lock technology field, is specifically related to a kind of pick-proof pin tumbler lock.

Background technology

Pin tumbler lock is simple in structure because of it, and cost is low, and is easy to install, opposite house damages little and is extensive use of by people during installation, the disadvantage of its existence is its dead bolt triangularity, so it is easy to by the thin slice that inserts from crack between a door and its frame dead bolt be ejected the dead bolt box, so theftproof performance is poor.For this reason, people have proposed many improvement technical schemes, are that 88101368.9 " safe gate lock with shot ", the patent No. are 98225198.X " novel pin tumbler lock " etc. as number of patent application.The former technical scheme one is: dead bolt is not have a vertical bar type of inclination, and the pellet shot from a slingshot bolt that can open, close is housed in the dead bolt box; Technical scheme two is that the outer wall of keeper is the slope.Technical scheme one its pellet shot from a slingshot stud structure more complicated; The outstanding wall in the outer wall slope of technical scheme two its keepers is many, and the one, not attractive in appearance; The 2nd, people's limbs are run into the outer wall slope of keeper easily, cause limbs to damage; People are when inlet/outlet simultaneously, and clothes is broken by hook easily.The latter's technical scheme is same as the former technical scheme two, so also there is the former same disadvantage.

Summary of the invention

The purpose of this utility model is that a kind of pick-proof pin tumbler lock will be provided, and it not only has, and pin tumbler lock is simple in structure, and cost is low, and is easy to install, and opposite house damages little advantage during installation, and the pick-proof performance is good; Do not exist people's limbs to damage easily, the disadvantage that clothes is broken by hook easily.

Above-mentioned goal of the invention is achieved through the following technical solutions, a kind of pick-proof pin tumbler lock, the dead bolt, the dead bolt box that comprise lock housing, handle, stop button, locking bar, cuboid, its main points are to be equipped with on the lock housing dead bolt when not inserting the dead bolt box, and the device that suppresses on dead bolt of suppressing in lock housing can contract its retaining.

Above-mentioned pick-proof pin tumbler lock, one of its structure is that to suppress device be the shell fragment that an end buckle is housed on lock housing, shell fragment one end is fixed on the lock housing, buckle one end suppresses and is not stretching out on the dead bolt end face of lock housing, and the spring that is resetted behind the dead bolt end face by the doorframe retaining when shell fragment buckle one end is housed between shell fragment and the lock housing.

The course of action of the utility model open and close is as follows: close in front of the door, the shell fragment that suppresses device is under the effect of spring, buckle one end suppresses all the time and is not stretching out on the dead bolt end face of lock housing, when at closing time, a dead bolt end face part is access door shelves and dead bolt box at first, then shell fragment buckle one end is run into a shelves, because people are applied to the pulling force on the door, the pulling force that makes shell fragment buckle one end overcome spring is outwards kept off, when it breaks away from the dead bolt end face, dead bolt loses elastic force pressure and springs in the dead bolt box, and this moment, door was promptly locked.When opening with key, screw key, dead bolt indentation lock housing, door is open, and shell fragment buckle one end resets under the effect of spring gradually, when dead bolt one exposes a shelves, promptly suppressed by shell fragment buckle one end, when door pushed away shelves, shell fragment buckle one end suppressed dead bolt and puts in place, and dead bolt is suppressed in lock housing in front of the door all the time closing.

From the course of action of the open and close of said structure of the present utility model and door as can be seen, it not only has, and pin tumbler lock is simple in structure, and cost is low, and is easy to install, and opposite house damages little advantage during installation; And adopt the cuboid dead bolt, and no matter door opens or closes, and the cuboid dead bolt is capable of expansion and contraction, and the pick-proof performance is good; And do not exist people's limbs to damage easily, the disadvantage that clothes is broken by hook easily.

Description of drawings

Fig. 1: the front view when the utility model is locked behind the broken section

Fig. 2: the utility model vertical view

Fig. 3: the front view when the utility model is not locked behind the broken section

Among Fig. 1-3: the 1-lock housing, the 2-handle, the 3-stop button, the 4-locking bar, the 5-dead bolt, 6-suppresses device, 7-shell fragment, 8-spring, 9-dead bolt box

The specific embodiment

By Fig. 1-3 represented be the new embodiment of this practicality, it comprises dead bolt 5, the dead bolt box 9 of lock housing 1, handle 2, stop button 3, locking bar 4, cuboid, when the dead bolt 5 that cuboid is housed on the lock housing 1 does not insert dead bolt box 9, its retaining can be contracted and in lock housing 1, suppress device 6; Suppressing device 6 is shell fragments 7 that an end buckle is housed on lock housing 1, shell fragment 7 one ends are fixed on the lock housing 1, buckle one end suppresses on dead bolt 5 end faces of the cuboid that does not stretch out lock housing 1, and the spring 8 that is resetted behind dead bolt 5 end faces of cuboid by the doorframe retaining when shell fragment 7 buckles one end is housed between shell fragment 7 and the lock housing 1.

Claims (2)

1. pick-proof pin tumbler lock comprises dead bolt, the dead bolt box of lock housing, handle, stop button, locking bar, cuboid, and when it is characterized in that being equipped with on the lock housing dead bolt and not inserting the dead bolt box, the device that suppresses on dead bolt of suppressing in lock housing can contract its retaining.

2. pick-proof pin tumbler lock according to claim 1, it is characterized in that suppressing device is the shell fragment that an end buckle is housed on lock housing, shell fragment one end is fixed on the lock housing, buckle one end suppresses and is not stretching out on the dead bolt end face of lock housing, and the spring that is resetted behind the dead bolt end face by the doorframe retaining when shell fragment buckle one end is housed between shell fragment and the lock housing.

Images