CN201095897Y

CN201095897Y - Anti-theft lock

Info

Publication number: CN201095897Y
Application number: CNU2007201879670U
Authority: CN
Inventors: 陆锦珠
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-10-09
Filing date: 2007-10-09
Publication date: 2008-08-06
Anticipated expiration: 2017-10-09

Abstract

A theftproof lock comprises a lock, a bolt driven by the lock, and a locking mechanism which is locked and buckled by the bolt. The lock is composed of a lock body with a spring and a hoodle, a lock core provided with a hoodle hole and arranged inside the lock body rotationally, and a key driving the lock core to rotate. The utility model is characterized in that a lock core keyhole is of a through hole, the key is composed of a key body part and a key end part, the key body part is provided with a sunken part corresponding to the hoodle of the hoodle hole, the section of the key end part is of a non-circular geometrical shape, the bolt corresponding to the key end part is provided with an inserting opening provided with a non-circular geometrical shape section and arranged correspondingly to the key end part, or an inserting opening which is in the non-circular geometrical shape and arranged at the key end part, and bolt corresponding to the key end part is provided with a pin of which the section is in the non-circular geometrical shape. Compared with the prior art, the theftproof lock has the advantage that even if the lock at a tapered end is unlocked, a security door cannot be opened.

Description

A kind of theftproof lock

Technical field:

The utility model relates to a kind of lock.

Background technology:

Its position of playing the locking effect of existing theftproof lock is at the tapered end position, and the robber just can all open theftproof lock as long as unblanked in the tapered end position.Therefore the theftproof performance of these locks just is subjected to certain restriction, and the quality of its theftproof performance is decided by the quality of the theftproof performance of tapered end.

Summary of the invention:

Goal of the invention of the present utility model is to provide a kind of lock that cracks the tapered end position, the theftproof lock that theftproof lock can not be opened.

The utility model is to realize like this, comprise lock, dead bolt by the lock drive, retaining mechanism by the dead bolt snap close, lock is by having spring, the lock body of hoodle, rotation is arranged on the lock core that has the hoodle hole in the lock body, drive the key formation that lock core rotates, its special feature is that lock core keyhole is a through hole, key is by key plug portion, key end constitutes, key plug portion is provided with the depressed part corresponding with the hoodle in hoodle hole, the key end cross section is a non-circular geometry, the dead bolt corresponding with key end be provided with the corresponding cross section of key end be the insertion mouth of a non-circular geometry or the insertion mouth that key end is provided with non-circular geometry, it is a non-circular geometry plug that the dead bolt corresponding with key end is provided with the cross section.During use, key is inserted lock core keyhole, lock core can be rotated along the lock core hole of lock body, simultaneously, key end is connected with the dead bolt corresponding site, drives the dead bolt rotation by key, makes the snap action of retaining mechanism disengaging dead bolt and opens.

In order further to improve theftproof performance, when the key end cross section is a non-circular geometry, key end is provided with pin-and-hole, be provided with latch in the insertion mouth of the non-circular geometry on the corresponding dead bolt, when key end is provided with the insertion mouth of non-circular geometry, be provided with latch in the insertion mouth of key end, the non-circular geometry plug on the corresponding dead bolt is provided with pin-and-hole.

Compared with the prior art the utility model owing to dead bolt is directly driven by key, and adopts two kinds of unlocking structures of different nature, therefore, even have the lock that has cracked the tapered end position, the advantage that theftproof lock can not be opened.

Description of drawings:

Fig. 1 is the structural representation of the utility model embodiment 1;

Fig. 2 is the structural representation of the utility model embodiment 2.

The specific embodiment:

Now in conjunction with the accompanying drawings and embodiments the utility model is described in further detail:

Embodiment 1: as shown in Figure 1, the utility model comprises lock 1, dead bolt 2 by lock 1 drive, retaining mechanism 3 by dead bolt 2 snap closes, lock 1 is by having spring, the lock body 1a of hoodle 1c, rotation is arranged on the lock core 1d that has hoodle hole 1b in the lock body 1a, drive the key 1e formation that lock core 1d rotates, its special feature is that lock core 1d keyhole 1f is a through hole, key 1e is by the 1e1 of key plug portion, key end 1e2 constitutes, the 1e1 of key plug portion is provided with the depressed part 1e3 corresponding with the hoodle 1c of hoodle hole 1b, key end 1e2 cross section is a non-circular geometry (as the circle of band unfilled corner), the dead bolt 2 corresponding with key end 1e2 be provided with the corresponding cross section of key end 1e2 be the insertion mouth 2a of a non-circular geometry.Key end 1e2 is provided with pin-and-hole 1e4, is provided with latch 2b in the insertion mouth 2a of the non-circular geometry on the corresponding dead bolt 2.Retaining mechanism 3 is U-shaped retaining mechanisms, it is made of U-shaped snap close 3a, handle 3b, U-shaped snap close 3a one end is rotatably connected on the handle 3b, the other end inserts in the socket 3d of handle 3b, its side, termination is provided with recess 3c, dead bolt 2 is arranged in the handle 3b that faces socket, and is connected with lock 1 in being arranged on handle 3b.

Embodiment 2: as shown in Figure 2, present embodiment is on the basis of embodiment 1, and key end 1e2 is provided with the insertion mouth 1e5 of non-circular geometry, and it is a non-circular geometry plug 2c that the dead bolt 2 corresponding with key end 1e2 is provided with the cross section.Plug 2c is provided with pin-and-hole 2c1, is provided with latch 1e6 in the insertion mouth 1e5 of the non-circular geometry on the corresponding key end 1e2.

Claims

1, a kind of theftproof lock, comprise lock, dead bolt by the lock drive, retaining mechanism by the dead bolt snap close, lock is by having spring, the lock body of hoodle, rotation is arranged on the lock core that has the hoodle hole in the lock body, drive the key formation that lock core rotates, it is characterized in that lock core keyhole is a through hole, key is by key plug portion, key end constitutes, key plug portion is provided with the depressed part corresponding with the hoodle in hoodle hole, the key end cross section is a non-circular geometry, the dead bolt corresponding with key end be provided with the corresponding cross section of key end be the insertion mouth of a non-circular geometry or the insertion mouth that key end is provided with non-circular geometry, it is a non-circular geometry plug that the dead bolt corresponding with key end is provided with the cross section.

2, theftproof lock according to claim 1, when it is characterized in that the key end cross section is a non-circular geometry, key end is provided with pin-and-hole, be provided with latch in the insertion mouth of the non-circular geometry on the corresponding dead bolt, when key end is provided with the insertion mouth of non-circular geometry, be provided with latch in the insertion mouth of key end, the non-circular geometry plug on the corresponding dead bolt is provided with pin-and-hole.

3, theftproof lock according to claim 1 and 2, it is characterized in that retaining mechanism is the U-shaped retaining mechanism, it is made of U-shaped snap close, handle, U-shaped snap close one end is rotatably connected on the handle, the other end inserts in the socket of handle, its side, termination is provided with recess, and the dead bolt screw thread is arranged in the handle that faces socket, and is connected with lock in being arranged on handle.