CN203531542U

CN203531542U - Anti-theft lock

Info

Publication number: CN203531542U
Application number: CN201320726221.8U
Authority: CN
Inventors: 黄旭森; 徐林国
Original assignee: RUI'AN SENTE LOCK Co Ltd
Current assignee: RUI'AN SENTE LOCK Co Ltd
Priority date: 2013-11-18
Filing date: 2013-11-18
Publication date: 2014-04-09
Anticipated expiration: 2023-11-18

Abstract

The utility model discloses an anti-theft lock which comprises a key, a lock cylinder as well as a lock case and a casing which are nested outside the lock cylinder sequentially, wherein a shifting piece is fixedly mounted at the rear end of the lock cylinder. The anti-theft lock is characterized in that the head of the key adopts a triangular cylinder shape, and corresponding round slots are formed in three cylinder surfaces of the triangular cylinder and correspond to the triangle head of the key; a triangular lock cylinder hole is formed in the lock cylinder, upper pin tumbler holes are formed in three hole walls of the triangular lock cylinder hole, and upper pin tumblers are arranged in the upper pin tumbler holes; and lower pin tumbler holes are formed in the side wall of the lock case, lower pin tumblers are arranged in the lower pin tumbler holes, the tops of the lower pin tumblers are propped against the bottoms of the upper pin tumblers, and compressed springs are arranged at the bottoms of the lower pin tumblers. The anti-theft lock is novel in structure, excellent in anti-theft performance and high in capability of preventing technical unlocking.

Description

A kind of lock

Technical field

The utility model relates to a kind of improvement invention of lockset.

Background technology

Lockset uses very extensively in people's daily life, the pattern of lockset is a lot, and its critical piece is lock core and the key that matches with it, and key is generally yi word pattern and cross structure, pellet, spring etc. are installed in lock core, also have Special-shaped marble, locking plate etc. are installed in lock core.But the lockset of said structure, Key structure is more single, adopt the secret key amount of yi word pattern key less, theftproof performance is poor, adopts the secret key amount of cross key larger, but complex structure, key intensity is also poor, in a word, the shortcoming that poor, the anti-technical opening ability of lockset ubiquity theftproof performance of prior art is weak, also needs further to improve.

Summary of the invention

In view of the problem that current known technology exists, the technical problems to be solved in the utility model is to be to provide a kind of novel structure, the strong lock of good, the anti-technical opening ability of theftproof performance.

For solving the problems of the technologies described above, the utility model takes following technical scheme to complete:

A kind of lock, comprise key, lock core and be set in successively lock housing and the shell outside lock core, the rear end of lock core is installed with plectrum, it is characterized in that: the head of key is triangular column shape, on three cylinders of triangle cylinder, be equipped with corresponding circular nest groove, corresponding with the triangular head of key, lock core has triangle lock core hole, on three face walls of triangle lock core hole, all offer marble hole, in upper marble hole, pellet is housed, the sidewall of lock housing is provided with lower marble hole, lower pellet is housed in lower marble hole, the top of lower pellet and the bottom of upper pellet offset, the bottom of lower pellet is provided with stage clip.

Adopt the lockset of technique scheme, its key is different from yi word pattern and cross but triangular form, novel structure, the key intensity of triangular form structure is large, and circular nest groove all can be set on its triangle cylinder, corresponding with it, three row's pellets can be installed in lock core, the cryptographic key amount producing is like this just very large, if the key that need not match and look on the bright side of things that to open that will be very difficult is greatly enhanced the theftproof performance of lockset.

As preferably, the front end of lock core is provided with seals up a door, be provided with in the middle of sealing up a door with key hole over against fenestra, in fenestra, be provided with the two symmetrical fans sheet of sealing up a door, two tops of fanning the sheet of sealing up a door are hingedly connected together, jointed shaft is provided with shell fragment, under the effect of shell fragment, two fan the sheet elasticity of sealing up a door closes up and from the inside key hole is blocked, two fan the sheet complete pit of the common formation in its center when closing up of sealing up a door, this pit and key hole over against, this pit is comprised of left and right halfbody, left and right halfbody is divided into two fans and seals up a door on sheet.Because being provided with, the front end of lock core seals up a door, being provided with the two fans sheet of sealing up a door in the middle of sealing up a door blocks key hole from the inside, so can not see the arrangement architecture of lock core endoporus pellet by key hole, so just can not utilize technical opening method to open it, greatly improve theftproof performance; Meanwhile, the two fans sheet of sealing up a door is to open or the mode of closing up is moved with fan-shaped, and simple in structure, easy to assembly, cost is low; Other two fans are sealed up a door, and sheet its center when closing up is common forms a complete pit, and this pit is just in time matched with the conehead that triangular form key head has, so that the insertion of key, the utility model is applicable to triangular form key.

Accompanying drawing explanation

The utility model has following accompanying drawing:

Fig. 1 is cut-away view of the present utility model,

Fig. 2 is the A-A sectional view of Fig. 1,

Fig. 3 is the B-B sectional view (two fans are sealed up a door sheet in open mode) of Fig. 1,

Fig. 4 is the view (two fans seal up a door sheet in close up state) of Fig. 3 after key is extracted.

The specific embodiment

Accompanying drawing has represented the technical solution of the utility model and embodiment, further describes by reference to the accompanying drawings each details and the operating principle thereof of embodiment below again.

As shown in the figure, lock of the present utility model, comprise key 8, lock core 3 and be set in successively lock housing 2 and the shell 1 outside lock core 3, the rear end of lock core 3 is installed with plectrum 9, the head of key 8 is triangular column shape, on three cylinders of triangle cylinder, be equipped with corresponding circular nest groove, corresponding with the triangular head of key, lock core has triangle lock core hole, on three face walls of triangle lock core hole, all offer marble hole, pellet 10 is housed in upper marble hole, the sidewall of lock housing 2 is provided with lower marble hole, lower pellet 11 is housed in lower marble hole, the bottom of the top of lower pellet 11 and upper pellet 10 offsets, the bottom of lower pellet 11 is provided with stage clip 12, the front end of lock core 3 is provided with seals up a door 4, seal up a door be provided with in the middle of 4 with key hole over against fenestra, in fenestra, be provided with the two symmetrical fans sheet 7 of sealing up a door, two tops of fanning the sheet 7 of sealing up a door are hingedly connected together, jointed shaft 5 is provided with shell fragment 6, under the effect of shell fragment 6, two fan sheet 7 elasticity of sealing up a door closes up and from the inside key hole is blocked, two fan the sheet 7 complete pit 13 of the common formation in its center when closing up of sealing up a door, this pit 13 and key hole over against, this pit is just in time matched with the conehead that key head has, so that the insertion of key, this pit 13 is comprised of left and right halfbody, left and right halfbody is divided into two fans and seals up a door on sheet 7.

When needs are opened above-mentioned lockset, key is inserted to the key hole of lockset, when key inserts, key leans the two fans sheet of sealing up a door from front, and the two fans sheet of sealing up a door overcomes the elastic force of shell fragment and fan-shaped opening, and key can insert lock core endoporus lockset is opened; When key inserts after lock core endoporus completely, the top of upper pellet can be fallen in the corresponding circular nest groove of key, and the abutment face of upper and lower pellet is just in time positioned on the cylindrical plane of rotation of lock core, now rotates key, and lock core is opened lockset with key turns.

Claims

1. a lock, comprise key, lock core and be set in successively lock housing and the shell outside lock core, the rear end of lock core is installed with plectrum, it is characterized in that: the head of key is triangular column shape, on three cylinders of triangle cylinder, be equipped with corresponding circular nest groove, corresponding with the triangular head of key, lock core has triangle lock core hole, on three face walls of triangle lock core hole, all offer marble hole, in upper marble hole, pellet is housed, the sidewall of lock housing is provided with lower marble hole, lower pellet is housed in lower marble hole, the top of lower pellet and the bottom of upper pellet offset, the bottom of lower pellet is provided with stage clip.

2. a kind of lock as claimed in claim 1, it is characterized in that: the front end of lock core is provided with seals up a door, be provided with in the middle of sealing up a door with key hole over against fenestra, in fenestra, be provided with the two symmetrical fans sheet of sealing up a door, two tops of fanning the sheet of sealing up a door are hingedly connected together, jointed shaft is provided with shell fragment, under the effect of shell fragment, two fan the sheet elasticity of sealing up a door closes up and from the inside key hole is blocked, two fan the sheet complete pit of the common formation in its center when closing up of sealing up a door, this pit and key hole over against, this pit is comprised of left and right halfbody, left and right halfbody is divided into two fans and seals up a door on sheet.