CN201649816U

CN201649816U - Device for plugging keyhole of lock

Info

Publication number: CN201649816U
Application number: CN2010200498936U
Authority: CN
Inventors: 聂红卫; 雷蕾
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-01-08
Filing date: 2010-01-08
Publication date: 2010-11-24
Anticipated expiration: 2020-01-08

Abstract

The utility model discloses a device for plugging the keyhole of a lock. The device comprises a lock sleeve (1), a lock core (2) and a key (9), wherein the lock core (2) is arranged in the lock sleeve (1), billiard holes (3) are distributed in the same positions of the lock core (2) and the lock sleeve (1), a lower billiard (4), an upper billiard (5), a billiard spring (6) and a sealing rivet (7) are mounted in the billiard holes (3) in sequence, communicated plugging post moving holes (11) are formed in the same positions of the lock core (2) and the lock sleeve (1), plugging posts (12), a ball bearing (13), a spring (14) and a sealing rivet (7) are mounted on each plugging post moving hole (11) in sequence, and the end of the plugging post (12) matched with a key insertion hole (10) takes the shape of a ball head while the other end thereof is flush with the external surface of the lock core (2). By adopting the structure, the defect of poor anti-theft opening performance can be overcome; moreover, the device has the characteristics of simple structure, convenient assembly, good anti-technical opening capability and the like.

Description

Tapered end keyhole plugging device

Technical field

The utility model relates to a kind of mechanical spring lock head, the tapered end keyhole plugging device of the anti-pirate of the open of particularly a kind of energy.

Background technology

Existing mechanical tapered end profile is ever-changing, but internal construction is basic identical, mainly is made up of parts such as lock tube, lock core, keys.During blocking, the following pellet shot from a slingshot in the pellet shot from a slingshot hole all is lower than plug face, and half enters last pellet shot from a slingshot in the lock core, and second half is stayed in the lock tube, and this moment, lock core can not rotate, and when non-original key inserts key hole, also was this type of situation.After inserting original key, the different teeth groove of height pushes pellet shot from a slingshot down on the key, the rising that makes down pellet shot from a slingshot upwards make differing heights is moved, cause whole following pellet shot from a slingshot afterbodys and plug face to maintain an equal level, promptly last pellet shot from a slingshot is all discharged lock core, lock core is free to rotate under key drives, and tapered end just can be opened.The main weak point of mechanical lock head existence at present is anti-pirate of the open poor performance, is opened in the key hole of non-key-shaped tool insertion tapered end easily, as master key.Take place for effectively stopping this type of phenomenon, many manufacturers and knowledgeable people have carried out the R and D of fruitful ground, but do not have rational product to emerge so far as yet.

Summary of the invention

In order to overcome the above-mentioned disadvantage that the existing machinery tapered end exists, the purpose of this utility model provides a kind of simple and reasonable, easy to assembly, anti-good tapered end keyhole plugging device of pirate of the open performance.

The technical scheme that its technical problem that solves the utility model adopts, it comprises lock tube, lock core, key, lock core is arranged in the lock tube rotationally, lock core is provided with key hole, its rear end connects the shift fork of unblanking, on the same position of lock core and lock tube, be distributed with a row or multi-row pellet shot from a slingshot hole that communicates, pellet shot from a slingshot is housed down in the pellet shot from a slingshot hole successively, last pellet shot from a slingshot, marble spring and seal rivet, following pellet shot from a slingshot communicates with key hole, the lock core in the outside, described pellet shot from a slingshot hole and the same position of lock tube are provided with the shutoff post movable span that at least one communicates, on each shutoff movable span the shutoff post is housed successively, ball, spring and seal rivet, the end that the shutoff post matches with key hole is the bulb shape, and its other end and lock core external surface maintain an equal level.

The described shutoff post patchhole that is complementary with the shutoff post that is provided with on the key.

The lock core in the outside, described pellet shot from a slingshot hole and the same position of lock tube are provided with two or three shutoff post movable spans.

After adopting said structure, the utility model has following advantage and effect: the one, when using the pirate of the open instrument to unblank, the shutoff post is subjected to the extruding of pirate of the open instrument and rises, the afterbody of shutoff post enters in the lock tube, tapered end is closed, thereby improved the security performance of the anti-technical opening of mechanical lock head effectively; The 2nd, under the prerequisite that does not change the mechanical lock head internal construction,, realize the upgrading of theftproof performance with better simply structural change and lower cost.

Fig. 1 is a structural representation of the present utility model.

Outer surface structure schematic diagram when Fig. 2 is the utility model locking.

Fig. 3 is the structural representation that the utility model key cooperates with the shutoff post.

Structural representation when Fig. 4 prizes for the stolen tool that goes into operation of the utility model.

The specific embodiment

Fig. 1, Fig. 2 and shown in Figure 3, specific embodiments for the utility model tapered end keyhole plugging device, it comprises lock tube 1, lock core 2, key 9, lock core 2 is arranged in the lock tube 1 rotationally, lock core 2 is provided with key hole 10, its rear end connects the shift fork 8 of unblanking, on the same position of lock core 2 and lock tube 1, be distributed with a row or multi-row pellet shot from a slingshot hole 3 that communicates, pellet shot from a slingshot 4 is housed down in the pellet shot from a slingshot hole 3 successively, last pellet shot from a slingshot 5, marble spring 6 and seal rivet 7, following pellet shot from a slingshot 4 communicates with key hole 10, the lock core 2 in 3 outsides, described pellet shot from a slingshot hole and the same position of lock tube 1 are provided with three shutoff post movable spans 11 that communicate, on each shutoff movable span 11 shutoff post 12 is housed successively, ball 13, spring 14 and seal rivet 7, the end that shutoff post 12 matches with key hole 10 is the bulb shape, and its other end and lock core 2 external surfaces maintain an equal level.Described key 9 is provided with the shutoff post patchhole 16 that is complementary with shutoff post 12.

When opening with key 9, the different teeth groove of height pushes pellet shot from a slingshot 4 down on the key 9, the rising that makes down pellet shot from a slingshot 4 upwards make differing heights is moved, cause whole following pellet shot from a slingshot 4 afterbodys and lock core 2 surfaces to maintain an equal level, promptly last pellet shot from a slingshot 5 is all discharged lock core 2, shutoff post 12 inserts in the shutoff post patchhole 16 of key 9, and the afterbody of shutoff post 12 and lock core 2 surfaces maintain an equal level, lock core 2 is free to rotate under key 9 drives, and tapered end just can be opened.

When opening with pirate of the open instrument 15, shutoff post 12 is subjected to the extruding of pirate of the open instrument 15 and rises, and the afterbody of shutoff post 12 enters in the lock tube 1, and tapered end is closed, and can't open.

Claims

1. tapered end keyhole plugging device, comprise lock tube (1), lock core (2), key (9), lock core (2) is arranged in the lock tube (1) rotationally, lock core (2) is provided with key hole (10), its rear end connects the shift fork (8) of unblanking, on the same position of lock core (2) and lock tube (1), be distributed with a row or multi-row pellet shot from a slingshot hole (3) that communicates, pellet shot from a slingshot (4) is housed down in the pellet shot from a slingshot hole (3) successively, last pellet shot from a slingshot (5), marble spring (6) and seal rivet (7), following pellet shot from a slingshot (4) communicates with key hole (10), it is characterized in that: the lock core (2) in the outside, described pellet shot from a slingshot hole (3) and the same position of lock tube (1) are provided with the shutoff post movable span (11) that at least one communicates, on each shutoff movable span (11) shutoff post (12) is housed successively, ball (13), spring (14) and seal rivet (7), the end that shutoff post (12) matches with key hole (10) is the bulb shape, and its other end and lock core (2) external surface maintains an equal level.

2. tapered end keyhole plugging device according to claim 1 is characterized in that: described key (9) is provided with the shutoff post patchhole (16) that is complementary with shutoff post (12).

3. tapered end keyhole plugging device according to claim 1 is characterized in that: the lock core (2) in the outside, described pellet shot from a slingshot hole (3) and the same position of lock tube (1) are provided with two or three shutoff post movable spans (11).