CN2177767Y

CN2177767Y - Anti-drilling lock

Info

Publication number: CN2177767Y
Application number: CN 93226522
Authority: CN
Inventors: 金文浩; 吴克义; 陆林昌
Original assignee: Huzhou Lock Factory No2
Current assignee: Huzhou Lock Factory No2
Priority date: 1993-11-02
Filing date: 1993-11-02
Publication date: 1994-09-21
Anticipated expiration: 2003-11-02

Abstract

The utility model relates to an anti-drilling lock, belonging to the technical field of the lockset. The utility model is mainly characterized in that an anti-drilling baffle for a lock core, which has a socket of a key, is arranged inside a lock core cavity of a lock tube, and the anti-drilling baffle for a lock core, which has a socket of a key, is attached to the end surface of the lock core; the end surface of the lock tube is fixedly connected with an anti-drilling baffle for the lock tube, which is covered on the end surface of the lock tube and has a revealing hole for the lock core; a decorative housing plate, which is provided with the same revealing hole for the lock core, is coated outside the anti-drilling baffle for the lock tube; the anti-drilling baffle for the lock core can rotate 360 DEG freely. The utility model has the advantages of simple structure, simple processing, easy assembly, low production cost, same appearance with the common lock, reliable anti-drilling performance, and reliable anti-stealing performance.

Description

Anti-drilling lock

The utility model belongs to lock technology field.

The mortise door lock of twin-lock head, double lock tongue has pick-proof and anti-theft performance preferably at present, is subjected to huge numbers of families' welcome deeply.But be exposed to the tapered end end face and the lock core end face of this outer lock,, still exist the danger that is destroyed by Drilling owing to be that common iron or copper material are made.So many designers have set up anti-drilling steel ball in tapered end, install anti-drilling protective cover etc. additional on the tapered end surface, further improved the security performance of door lock.Yet the blemish in an otherwise perfect thing of above-mentioned design is: apparatus structure is complicated, and cost of production is higher.

The purpose of this utility model provides a kind of simple in structure, low cost of manufacture and safety lock head with reliably anti-Drilling destructive characteristics.

The technical solution that realizes above-mentioned purpose is: in the lock core cavity of lock pipe, be close to lock core end face a slice diameter of packing into and be slightly less than the lock core drilling-preventing circle baffle plate of lock core cavity internal diameter, offer key hole on the circle baffle plate, keep a gap between circle baffle plane and the lock pipe end facial plane, be close to the lock of lock pipe end face fixed installation a slice covering lock pipe end face and manage anti-drilling baffle plate, offer lock core on the anti-drilling baffle plate of this lock pipe and reveal the hole, wrap in the anti-drilling baffle plate of lock pipe outside at last and offer the decoration cover plate that lock core reveals the hole.

Accompanying drawing 1 is a general structure schematic diagram of the present utility model.

Accompanying drawing 2 is lock core drilling-preventing baffle plate (a 6) structural representation.

Accompanying drawing 3 is lock pipe anti-drilling baffle plate (4) structural representation.

Accompanying drawing 4 is for decorating cover plate (3) structural representation.

The utility model is described in further detail with an embodiment below in conjunction with accompanying drawing.

In the lock core cavity of lock pipe (2), the lock core (1) of packing into earlier is close to lock core (1) the end face diameter of packing into then and is slightly less than the lock core drilling-preventing plectane (6) of lock core cavity internal diameter; Offer the jack (8) of key (7) on this circle baffle plate (6); The outerplanar of circle baffle plate (6) and lock core accent end face are promptly locked pipe (2) end face and are remained with a gap; The lock that is equal to size with lock pipe (2) end face is managed anti-drilling baffle plate (4) and then is close to lock pipe end face, fixedly connected with lock pipe (2) with pin (5), offer pin hole (9) and diameter lock core dew hole (10) on the lock anti-drilling baffle plate of pipe (4) less than the lock core drilling-preventing baffle plate.Like this lock core drilling-preventing circle baffle plate (6) can be in the lock core cavity of lock pipe, be positioned at that work freely rotates for 360 ° between lock core (1) end face and the lock anti-drilling baffle plate of pipe (4), do not take off race but can not reveal the hole (10) from lock core.Wrap at the tapered end end face at last and be provided with the decoration cover plate (3) that lock core reveals hole (11).Lock core drilling-preventing baffle plate (6) and the lock anti-drilling baffle plate of pipe (4) are one time punching molded by the high-quality steel disc, handle through cyaniding then, make it reach higher hardness.

The utility model structure is very simple, processing, easy to assembly, cost of production is low, outward appearance and common tapered end are as good as, but has reliable anti-drilling theftproof performance.

Claims

1, a kind of Anti-drilling lock, has lock core (1), lock pipe (2), the tapered end end face is decorated cover plate (3), it is characterized in that in the lock core cavity of lock pipe (2), be close to lock core (1) end face the lock core drilling-preventing circle baffle plate (6) that a slice diameter is slightly less than the lock core cavity internal diameter is housed, offer key hole (8) on the circle baffle plate (6), remain with a gap between circle baffle plate (6) plane and lock pipe (2) end face plane, be close to lock pipe (2) end face and be installed with to cover lock pipe end face and offer the lock that lock core reveals hole (10) and manage anti-drilling baffle plate (4), wrap in the lock anti-drilling baffle plate of pipe (4) outside and offer the decoration cover plate (3) that lock core reveals hole (11).

2,, it is characterized in that the anti-drilling baffle plate upper lock core of lock pipe reveals the diameter of the diameter in hole (10) less than lock core drilling-preventing circle baffle plate (6) by the described Anti-drilling lock of claim 1.