CN2809116Y

CN2809116Y - Prevention theft-proof lock

Info

Publication number: CN2809116Y
Application number: CN 200520073033
Authority: CN
Inventors: 林小红
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-06-21
Filing date: 2005-06-21
Publication date: 2006-08-23
Anticipated expiration: 2015-06-21

Abstract

The utility model relates to a theftproof lock. The purpose of the utility model is to provide a blocking theftproof lock capable of effectively preventing illegal prizing operation. The utility model is characterized in that a longitudinal shallow groove is arranged in the shaft core of lock corresponding to a marble hole array, and the shaft core 2 of the lock is sheathed with a shaft sleeve tightly matched with the shaft core of the lock; marble holes are arranged in the shaft sleeve correspondingly. The utility model has the advantages of reasonable design, simple structure and strong theftproof performance. When marbles are picked up by a wire hook and a pry bar, an outer cover of the shaft core makes an upper marble and a lower marble clamped in an axial hole of the shaft core of the lock under the power of a Z-shaped wrench for preventing prizing operation better.

Description

The blocking type anti-theft lock end

Technical field

The utility model relates to a kind of anti-theft lock end.

Background technology

Known tapered end is made up of tapered end outer cover, tapered end axle center, pellet shot from a slingshot, spring and key.Because the restriction of production technology, pellet shot from a slingshot hole on the tapered end outer cover and the pellet shot from a slingshot hole on the axle can't connect fully, with pulling to the direction of unblanking in the Z-shaped spanner insertion keyhole, make the pellet shot from a slingshot in the keyhole stressed, again with inserting iron wire hook in the keyhole or the ripping bar that is upturned, provoke one of them the stressed following pellet shot from a slingshot in 5 arbor holes, make the last pellet shot from a slingshot in its hole be forced to enter fully in the outer cover hole.After last pellet shot from a slingshot in the outer cover hole entered in the outer cover hole fully, axle was subjected to the revolving force that Z-shaped spanner is pulled generation, will be staggered a bit by axis hole and outer cover hole, and last pellet shot from a slingshot can't be returned in the arbor hole, backs out iron wire hook or ripping bar, and following pellet shot from a slingshot falls after rise.After last pellet shot from a slingshot in this hole and following pellet shot from a slingshot separate, will there be the pellet shot from a slingshot in a hole stressed again in remaining four hole, continues operation with preceding method, enter fully in the outer cover hole to all last pellets shot from a slingshot, the following pellet shot from a slingshot arbor hole that falls back, the tapered end axle is just rotatable, produce power, lock body is opened.This just makes the lawless person have gap to bore, this mode picking lock commonly used.

Summary of the invention

The purpose of this utility model is: in order to prevent Z-shaped spanner pirate of the open lock, provide a kind of blocking type anti-theft lock end that stops billiards structure that has.

The structural design scheme of realizing the foregoing invention purpose is as follows:

The blocking type anti-theft lock end comprises tapered end outer cover, tapered end axle center, pellet shot from a slingshot, spring and key, it is characterized in that: be provided with an axial shallow slot 9 with row corresponding position, pellet shot from a slingshot hole on the described tapered end axle center 2, tapered end axle center 2 is provided with axle sleeve 3, and correspondence has the pellet shot from a slingshot hole on the axle sleeve 3.

According to above-mentioned 1 described blocking type anti-theft lock end, it is characterized in that: the last pellet shot from a slingshot 5 of described 1-4 row is for cylindric, and it directly upwards is provided with one or more radial slot, and following pellet shot from a slingshot 4 footpaths upwards are provided with a radial slot.

According to above-mentioned 1 described blocking type anti-theft lock end, it is characterized in that: be provided with under the dead axle pellet shot from a slingshot 8 on the pellet shot from a slingshot 7 and dead axle respectively at place, the 5th row pellet shot from a slingshot hole of tapered end outer cover and tapered end axle center correspondence.

The utility model is reasonable in design, and is simple in structure, and theftproof performance is strong, and after provoking pellet shot from a slingshot with iron wire hook and ripping bar, under the power of Z-shaped spanner, the axle center outer cover will make pellet shot from a slingshot or following pellet shot from a slingshot be stuck in the axial groove in tapered end axle center, plays pick-proof lock effect well.

Description of drawings

Fig. 1 is the utility model structural representation,

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

Fig. 3 is a tapered end axle center schematic diagram,

Fig. 4 is the axle sleeve schematic diagram.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is further described by embodiment.

By Fig. 1, Fig. 2 as seen, the blocking type anti-theft lock end comprises tapered end outer cover 1, tapered end axle center 2, last pellet shot from a slingshot 5, following pellet shot from a slingshot 4, spring 6 and key.

Have an axial shallow slot 9 with row corresponding position, pellet shot from a slingshot hole on the tapered end axle center 2, axially the width of shallow slot 9 is set with axle sleeve 3 greater than the pellet shot from a slingshot bore dia on the tapered end axle center 2, axle sleeve 3 and tapered end axle center 2 tight fits, and correspondence has the pellet shot from a slingshot hole on the axle sleeve 3, sees Fig. 3, Fig. 4.

The last pellet shot from a slingshot 5 of 1-4 row is cylindric, and it directly upwards is provided with three radial slots, and following pellet shot from a slingshot 4 footpaths upwards are provided with a radial slot.

In order to prevent that tapered end axle center 2 from rocking, pellet shot from a slingshot 8 on the pellet shot from a slingshot 7 and dead axle is housed respectively at the place, the 5th row pellet shot from a slingshot hole of tapered end outer cover 1 and tapered end axle center 2 correspondences under the dead axle.

Antitheft principle: after provoking pellet shot from a slingshot with iron wire hook and ripping bar, under the power of Z-shaped spanner, the axle center outer cover will make pellet shot from a slingshot or following pellet shot from a slingshot be stuck in the axial groove in tapered end axle center, stops 2 rotations of tapered end axle center, plays antitheft well effect.

Claims

1, blocking type anti-theft lock end, comprise tapered end outer cover, tapered end axle center, pellet shot from a slingshot, spring and key, it is characterized in that: go up in described tapered end axle center (2) and row corresponding position, pellet shot from a slingshot hole is provided with an axial shallow slot (9), and tapered end axle center (2) are provided with axle sleeve (3), and axle sleeve (3) is gone up correspondence and had the pellet shot from a slingshot hole.

2, blocking type anti-theft lock end according to claim 1 is characterized in that: the last pellet shot from a slingshot (5) of described 1-4 row is for cylindric, and it directly upwards is provided with one or more radial slot, and following pellet shot from a slingshot (4) footpath upwards is provided with a radial slot.

3, blocking type anti-theft lock end according to claim 1 is characterized in that: the place, the 5th row pellet shot from a slingshot hole in tapered end outer cover and tapered end axle center correspondence is provided with pellet shot from a slingshot (8) on pellet shot from a slingshot under the dead axle (7) and the dead axle respectively.