CN203783265U - Anti-theft lock cylinder assembly - Google Patents

Abstract

The utility model provides an anti-theft lock cylinder assembly which comprises a key and a lock cylinder. The lock cylinder is composed of a lock cylinder body and a lock container, multiple groups of pin devices are arranged between the lock cylinder body and the lock container, each group of pin devices is sequentially composed of a first pin, a second pin, a locking spring and a plug, and the first pins are located in the lock container. The key is sequentially composed of a handle, a rotating head and an inserting head. A key hole of the lock container is a flat cavity, a rotation matching cavity is formed in an opening of the flat cavity, the thickness of the flat cavity is 0.15-0.65 mm, the heads of the first pins are located in the flat cavity, and the heads of the first pins are conical. The rotating head is matched with the rotating matching cavity, the thickness of the inserting head is matched with that of the flat cavity, and the fit clearance is 0.05-0.1 mm. Holes which are in different sizes are formed in the positions, corresponding to the pin devices, of the inserting head respectively. Due to the fact that the thickness of the inner portion of the key hole of the lock container is 0.15-0.65 mm, existing illegal unlocking tools cannot stretch into the key hole, and the illegal unlocking prevention effect is achieved.

Description

A kind of anti-theft lock assembly

Technical field

The utility model is a kind of anti-theft lock assembly.

Background technology

Existing lock core, key have certain thickness, so present pirate of the open lock tool can go deep in keyhole and have certain pellet space of stirring, stir pellet and reach the object of unblanking.

Summary of the invention

The utility model proposes a kind of anti-theft lock assembly, the thickness that changes current lock core keyhole, by the in the past thick thinner keyhole that changes into, key by thick key in the past change into use good toughness, hardness is high, repeatability is strong, the steel disc of high abrasion, be provided with hole not of uniform size and realize corresponding with pins pellet, unblank thereby realize, reach the effect of antitheft.

For this reason, the technical solution of the utility model is: a kind of anti-theft lock assembly, comprise key, lock core, lock core is made up of plug body, lock gall, between plug body, lock gall, be provided with many group cylinder devices, every group of cylinder device is made up of successively the first pellet, the second pellet, locking spring, plug, and the first pellet is positioned at lock gall; Key is made up of successively handle, rotary head, insert head, it is characterized in that: the keyhole of lock gall is flat lumen, the oral area of flat lumen is provided with the chamber that is rotatably assorted, and the thickness of flat lumen is 0.15-0.65 millimeter, the head of the first pellet is positioned at flat lumen, and the head of the first pellet is tapered;

The rotary head of key matches with the chamber that is rotatably assorted of keyhole, and thickness and the flat lumen of insert head match, and fit clearance is between 0.05-0.15 millimeter; Correspondingly with the position of every group of cylinder device on insert head be respectively equipped with vestibule not of uniform size.

The material that described insert head adopts is austenitic alloy steel or chromium plating spring steel.

Beneficial effect: because the keyhole inner thickness of lock gall is between 0.15-0.65 millimeter, existing pirate of the open lock tool cannot go deep in it, thereby reaches the effect of antitheft; When use, key inserts in keyhole, and by vestibule jack-up pellet not of uniform size, realization is unblanked; This practicality is easy to use, greatly improves its safety.

Brief description of the drawings

Fig. 1 is the structure chart of key in the utility model.

Fig. 2 is the structure chart of lock core in the utility model.

Fig. 3 is the structure chart of the first pellet in the utility model.

Fig. 4 is the structure chart of the second pellet in the utility model.

Detailed description of the invention

As shown in Figure 1 and Figure 2, further describe the utility model as follows:

A kind of anti-theft lock assembly, comprise key, lock core, lock core is made up of plug body 5, lock gall 13, between plug body 5, lock gall 13, be provided with many group cylinder devices, every group of cylinder device is made up of successively the first pellet 9, the second pellet 8, locking spring 7, plug 6, and the first pellet 9 is positioned at lock gall; Key is made up of successively handle 1, rotary head 2, insert head 3;

The keyhole of lock gall 13 is flat lumen 11, and the oral area of flat lumen 11 is provided with the chamber 12 that is rotatably assorted, and the thickness of flat lumen 11 is 0.15-0.65 millimeter, and it is tapered that the head 9 of the first pellet is positioned at the head of flat lumen 11, the first pellets 9;

The rotary head 2 of key matches with the chamber 12 that is rotatably assorted of keyhole, and the thickness of insert head 3 and flat lumen 11 match, and fit clearance is between 0.05-0.15 millimeter; On insert head with the corresponding vestibule not of uniform size 4 that is respectively equipped with in position of every group of cylinder device;

Lock gall 13 is in transmission connection with dead bolt 10.

As shown in Figure 3, the first pellet 9 main bodys are rectangular shapes, just the tapered 9a of head; , the head of the first pellet 9 is provided with inclined plane along the both sides correspondence of (lock gall) keyhole length direction, becomes taper, is convenient to coordinate with the vestibule of key.

As shown in Figure 4, the second pellet 8 is rectangular shapes.

The insert head 3 of key uses good toughness, hardness is high, repeatability is strong, the steel disc of high abrasion is made, for example: austenitic alloy steel or chromium plating spring steel.

Antitheft principle: because the keyhole inner thickness of lock gall is between 0.15-0.65 millimeter, existing pirate of the open lock tool cannot go deep in it, thereby reaches the effect of antitheft.

Claims (2)

1. an anti-theft lock assembly, comprise key, lock core, lock core is made up of plug body, lock gall, is provided with many group cylinder devices between plug body, lock gall, every group of cylinder device is made up of successively the first pellet, the second pellet, locking spring, plug, and the first pellet is positioned at lock gall; Key is made up of successively handle, rotary head, insert head, it is characterized in that: the keyhole of lock gall is flat lumen, the oral area of flat lumen is provided with the chamber that is rotatably assorted, and the thickness of flat lumen is 0.15-0.65 millimeter, the head of the first pellet is positioned at flat lumen, and the head of the first pellet is tapered;

The rotary head of key matches with the chamber that is rotatably assorted of keyhole, and thickness and the flat lumen of insert head match, and fit clearance is between 0.05-0.15 millimeter; Correspondingly with the position of every group of cylinder device on insert head be respectively equipped with vestibule not of uniform size.

2. a kind of anti-theft lock assembly according to claim 1, is characterized in that: the material that the rotary head of described key adopts is austenitic alloy steel or chromium plating spring steel.