CN204941083U

CN204941083U - Nail hole lock and matched key

Info

Publication number: CN204941083U
Application number: CN201520691606.4U
Authority: CN
Inventors: 武玉龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-09-09
Filing date: 2015-09-09
Publication date: 2016-01-06
Anticipated expiration: 2025-09-09

Abstract

The utility model relates to a kind of theft-prevention structure of mechanical lock, comprises lock body, locking closure, spring, cam, lock core, dead bolt, locking bolt, chain, the key supporting with lockset; Locking closure there is the through hole matched with key operate portions, spring supporting is had to locate in the middle of locking closure and cam, locking closure through hole and lock core keyhole form right-angled intersection and fix, and cam center has the through hole identical with locking closure, have two symmetrical circular holes for adjusting the angle of cam hole position outside lock body; Insert in locking closure and cam with key when unblanking, in lock body half-twist align keyhole insert unblank, when unblanking, cam through hole turns to the position of matching with lock core keyhole, now cam hole and locking closure hole cross are staggered to form secret room space, before unblanking, lockhole becomes nail hole size and can block unlocking tool, obstruct instrument enters keyhole, fixed via on locking closure prevents instrument brute force to reverse lock core, cam can dally and effectively prevent Electric portable drill to the destruction of lock core in lock body, and its theftproof performance is reliable.

Description

Nail hole lock and matched key

Technical field

The utility model relates to a kind of mechanical anti-theft lockset technical field, is specifically related to a kind of nail hole lock and matched key, is applicable to safe-guard door lock, lock, padlock, U-shape lock, chain lock, safe lock etc.

Background technology

Mechanical lock comes out existing more than 150 year so far, one more common on the market at present, just because of the extensive use of lockset technology, the non-anti-theft change of lockset more obvious, be mainly manifested in following three aspects: 1. lock core structure is made up of blade or pellet, copper makes the surface of lock core at lock, the internal construction of lock core just can be understood by range estimation keyhole, stealer direct unlocking tool or master key can insert keyhole, by dialling from the blade in lock core, pellet, or means are reversed lock core by force and are unblanked by force, the modes such as bad lock core are bored with Electric portable drill, reach the object of opening lockset easily, 2. non-former lock key can insert lock core, easily cause and to open mutually by means of key and key tooth not etc. does not leave mutually, oneself key can inject in others' family's lockhole, even can also open the lock of others' family, 3. the unlocking tool sold on the net, free download is unblanked instructional video, the little poster of lock Wang Kaisuo sticky on door, the technician that can find bitting everywhere on the market and unblank, lockset theftproof performance present is as can be seen here poor, the electric lockset of market, such as: IC card lock, Fingerprint Lock, electronic password lock, due to selling at exorbitant prices, the factors such as suitable environment can not be used widely, one minute just can by the lock pried open as ornament, the safety of property and the person can not be protected.

Summary of the invention

The purpose of this utility model solves the deficiency in existing lockset theftproof performance, and researching and developing a kind of lock core has hidden function, has the lock unit that the confrontational design of high security, structure are simple, handling ease, non-original key are not opened; The theftproof performance of innovation can effectively pick-proof, anti-drilling, anti-ly to cut, anti-saw, anti-hinge, prevent pounding, anti-carrying (locking jail with fixture) etc.

The concrete technical scheme realizing above-mentioned novel anti-theft structure design is: a kind of nail hole lock and matched key, and this lockset comprises lock body, locking closure, spring, cam, lock core, dead bolt, locking bolt, chain, the key supporting with lockset; The operate portions of key is connected with key handle with cylindrical bar, there is the through-hole groove matched with key operate portions at locking closure center, locking closure and cam form male-female engagement, locking closure through-hole groove and the right-angled intersection in 90 ° of lock core keyhole shape are fixed, cam is assemblied in can in the idle running of lock body inside between locking closure and lock core, cam center has the through-hole groove identical with locking closure, has two symmetrical circular holes for adjusting the position of rotation of cam outside lock body.

Insert in locking closure and cam with key when unblanking, in lock body half-twist align lock core keyhole insert unblank, when key rotates in cam, cam through-hole groove also turns to the position of matching with lock core keyhole thereupon, now cam path and locking closure slotted eye position are sheared closed, shape cross staggered seal in 90 ° Space Principles, before unblanking, lockhole becomes nail hole size and can block unlocking tool, intercept master key and enter lock core inside, fixed via groove on locking closure prevents the tool that goes into operation by force to reverse lock core, the steel cam rotated freely can prevent Electric portable drill to the destruction of lock core, the innovative design of this lockset, change the core texture of conventional lock, security performance is improved.

What the utility model nail hole robber's lockset and matched key adopted is that hiding lock core is inner at lock body, the core texture of lock core can not be observed by keyhole, and shear closed by position, three holes on locking closure, cam, lock core, the staggered design of sealing up a door of shape cross in 90 °, this architecture enhance the safety guard to lock core, therefore it has the theftproof performance insured very much.

Accompanying drawing explanation

Fig. 1 is the respective outer side edges sectional view of nail hole lock.

Fig. 2 is the structural representation of matched key.

Fig. 3 is locking closure support spring and cam decomposing schematic representation.

Fig. 4 is the cam work view before matched key inserts lock core.

Fig. 5 is the cam work view after matched key inserts lock core.

Detailed description of the invention

A kind of nail hole lock and matched key, comprise lock body (1), locking closure (2), spring (3), cam (4), lock core (5), dead bolt (6), locking bolt (7), chain (8), key (9), collar (10), pin (11), it is characterized in that: lock core (5) is hidden and is fixed on lock body (1) inside, lock core (5) front end is equipped with cam (4) and forms male-female engagement with locking closure (2), cam (4) can in the idle running of lock body (1) inside, locking closure (2) is fixed on lock body (1) end face in cam (4) front end, locking closure (2) cam (4) center has through-hole groove (201) (401) of matching with key operate portions (901), locking closure through-hole groove (201) is staggered fixing with lock core keyhole (501) shape cross in 90 °, lock body (1) outside has two symmetrical circular hole (101) (102), circular hole (101) (102) position is in cam (4) both sides, circular hole (101) (102) are for manually adjusting the position of rotation of cam (4), the operate portions (901) of key (9) is connected with the shank of the key (903) with cylindrical bar (902).

The operate portions (901) of described key (9) is connected with the shank of the key (903) with cylindrical bar (902), and cylindrical bar is conducive to key and rotates freely in cam (4).

The concrete course of work is: when unblanking key operate portions (901) insert locking closure through-hole groove (201) with cam through-hole groove (401) in, lock body (1) in half-twist align lock core keyhole (501) insertion unblank, when key operate portions (901) is rotated in cam through-hole groove (401), cam through-hole groove (401) also turns to the position of matching with lock core keyhole (501) thereupon, now cam path (401) and locking closure groove (201) form position, hole and shear and close, before unblanking, lockhole (201) becomes nail hole size and can block unlocking tool, intercept master key and enter lock core (5) inside, fixed via groove (201) on locking closure (2) prevents the tool that goes into operation by force to reverse lock core, the cam (4) rotated freely in lock body (1) can prevent Electric portable drill to the destruction of lock core (5), the design feature of lockset is that lock core (5) is hidden in lock body (1) inside, the core structure of lock core (5) can not be observed by lockhole (201), and by locking closure (2), cam (4), lock core (5) upper three holes position (201) (401) (501) are sheared closed, the staggered design of closing the door of shape cross in 90 °, drive dead bolt (6) to block locking bolt (7) with key (9) rotational lock core (5) and realize opening and closing lockset, this structure enhances the safety guard to lock core, therefore it has the anti-theft feature insured very much.

Claims

1. a nail hole lock and matched key, comprise lock body (1), locking closure (2), spring (3) cam (4), lock core (5), dead bolt (6), locking bolt (7), chain (8), key (9), collar (10), pin (11), it is characterized in that: lock core (5) is hidden and is fixed on lock body (1) inside, lock core (5) front end is equipped with cam (4) and forms male-female engagement with locking closure (2), it is middle with cam (4) that spring (3) is arranged on locking closure (2), cam (4) can in the idle running of lock body (1) inside, locking closure (2) is fixed on lock body (1) end face in cam (4) front end, locking closure (2) cam (4) center has through-hole groove (201) (401) of matching with key operate portions (901), locking closure through-hole groove (201) and the right-angled intersection in 90 ° of lock core keyhole (501) shape fixedly mount, lock body (1) outside has two symmetrical circular hole (101) (102), circular hole (101) (102) position is in cam (4) both sides, circular hole (101) (102) get rid of the inner silt foreign material of lock body (1) for the position of rotation and cleaning manually adjusting cam (4), the operate portions (901) of key (9) is connected with the shank of the key (903) with cylindrical bar (902).

2. nail hole lock and matched key according to claim 1, it is characterized in that lock core (5) is hidden in lock body (1) inside pin (11) and fixes, dead bolt (6) collar (10) is fixed on lock core (5) afterbody, drives dead bolt (6) to block locking bolt (7) realize opening and closing lockset with key (9) rotational lock core (5).

3. nail hole lock and matched key according to claim 1, it is characterized in that locking closure (2) is in cam (4) front end, be fixed on lock body (1) end face with pin (11), fix with keyhole (501) the shape cross in 90 ° of lock core (5) is staggered during the assembling of the through-hole groove (201) of locking closure (2).

4. nail hole lock and matched key according to claim 1, is characterized in that cam (4) surface knurling is processed, is convenient to touch the anglec of rotation with hand; It is middle with cam (4) that spring (3) is arranged on locking closure (2), and prevent lockset cam (4) turned position arbitrarily when rocking, chain (8) pin (11) is fixed on lock body (1) with on locking bolt (7).

5. nail hole lock and matched key according to claim 1, it is characterized in that the operate portions (901) of key (9) is connected with the shank of the key (903) with cylindrical bar (902), cylindrical bar (902) contributes to key and rotates freely in cam (4).

6. nail hole lock and matched key according to claim 1, it is characterized in that locking closure (2), cam (4), lock core (5) upper three holes position (201) (401) (501) hole when position of unblanking shears closed, shape cross staggered seal in 90 ° Space Principles, this structure enhances the safety guard to lock core.