CN201011212Y - Anti-theft lock and its key - Google Patents

Abstract

The utility model discloses an antitheft lock and key, comprising a lock core, a lock shell and a lock rod. A lengthening lock shell is arranged at the bottom of the key hole of the lock core on the lock shell, whose side surface is provided with a right-angle side channel corresponding with the key hole. An anti-prizing post is mounted between the walls of the lengthening lock shells at the two sides in the side channel. The key of a gun-bolt type has a structure with a section of the key handle is connected at the end of the key tooth piece in a bend manner vertically in 90 degrees upwards. Not seeing the antitheft lock and key in the key hole on the surface, and only permitting a special gun-bolt type key to be inserted into the key hole through the side channel, the utility model can not be opened by use of an iron wire and a passkey. By adopting come reinforcing measures on the lock rod and the lock shell, the utility model is extensively applicable to various inserting rod locks of the vehicles, the storeroom padlocks and the gate lock, being anti-through and anti-prizing, thereby promising a more reliable antitheft performance.

Description

A kind of theftproof lock and key thereof

Technical field:

The utility model relates to lock ﹠ key, and particularly a kind of keyhole is hidden in the lengthening lock housing, must rotate by key insertion hole and could insert its special rifle bolt formula key, and theftproof performance is good, theftproof lock applied widely and key thereof.

Background technology:

Existing lock and key thereof, its keyhole all are to be provided with the lock core bottom simultaneously to expose from lock housing, and used key all is the vertical bar shaped that has the ditch tooth.This lock and key thereof are easy to be opened with iron wire is logical by the thief, so theftproof performance is poor, the possessor has taked strengthening measure to be used for preventing that vehicle, door and window from being prized on locking bar and lock housing to the greatest extent, but prevent that the logical drawback of opening from still existing.

Summary of the invention:

The purpose of this utility model provides that a kind of keyhole is hidden to be located in the lock housing, has only with special key and could insert good theftproof lock and the key of opening thereof of theftproof performance.The technical solution of the utility model is finished as follows, it includes lock core, lock housing and locking bar, it is characterized in that: the keyhole bottom at lock core on the lock housing is provided with the lengthening lock housing, corresponding keyhole is provided with a right angle type side path in the side of lengthening lock housing, extend up and down and be welded with the pick-proof post between the lock housing wall in both sides in side path, used key is a kind of rifle bolt formula key, and its form of structure is that the vertical 90 degree bendings that make progress of the tail end at the key gear piece are connected with one section the shank of the key.On lock housing, be rotatably connected to the protective cover that a slice covers side path by bearing pin.This to the eye less than the theftproof lock and the key thereof of keyhole, because have only special rifle bolt formula key could insert in the keyhole by side path, so can not held by iron wire and master key are logical, as long as on locking bar and lock housing, take certain strengthening measure again, just can be widely used in various vehicle inserted link locks, storehouse padlock and rolling gate door lock, not only anti-logical but also pick-proof, theftproof performance is more reliable.

Description of drawings:

Fig. 1 is the basic structure schematic diagram of the utility model theftproof lock, and Fig. 2 is the structural representation of the utility model rifle bolt formula key.

The specific embodiment:

Describe embodiment in detail in conjunction with above accompanying drawing, the utility model is the improvement to existing various theftproof locks, its main improvements are that lock housing 1 bottom below the keyhole 4 of lock core 3 is provided with a lengthening lock housing 8, corresponding keyhole is provided with a right angle side path 6 on a side of lengthening lock housing, extend up and down and be welded with a plurality of pick-proof posts 7 between the lock housing wall in both sides in side path, used key is a kind of rifle bolt formula key, and its form of structure is that the vertical 90 degree bendings that make progress of the tail end at key gear piece 9 are connected with one section the shank of the key 10.In order to prevent to enter dust and moisture in the side path, can be on lock housing with the bearing pin a slice protective cover 5 that is rotationally connected, with it side path is covered during use.Locking bar 2 of the present utility model can be used according to inserted link lock, storehouse padlock, chain lock and the rolling gate door lock etc. of different purposes and overstriking with lock housing 1 and lengthening lock housing 8 thereof, can both prevent to open with iron wire and master key are logical, prevent from again to cut off, so theftproof performance is more reliable with pincers.When locking, this theftproof lock is as broad as long with general lock, then must earlier rifle bolt formula key be set level side direction when unblanking inserts in the vertical slot of right angle type side path 6, then the shank of the key is upwards moved 90 ° and made that the key gear piece is parallel with keyhole to align, before shift the end again onto, turn an angle to 90 degree vertical channel directions at last, can open this lock.

Claims (2)

1. theftproof lock and key thereof, it includes lock core, lock housing and locking bar, it is characterized in that: the keyhole bottom at lock core on the lock housing is provided with the lengthening lock housing, corresponding keyhole is provided with a right angle type side path in the side of lengthening lock housing, extend up and down and be welded with the pick-proof post between the lock housing wall in both sides in side path, used key is a kind of rifle bolt formula key, and its form of structure is that the vertical 90 degree bendings that make progress of the tail end at the key gear piece are connected with one section the shank of the key.

2. a kind of theftproof lock and key thereof as claimed in claim is characterized in that: be rotatably connected to the protective cover that a slice covers side path by bearing pin on lock housing.

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