CN2116050U

CN2116050U - Compound anti-pulling cylinder lock

Info

Publication number: CN2116050U
Application number: CN 92211460
Authority: CN
Inventors: 牟建强
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-03-30
Filing date: 1992-03-30
Publication date: 1992-09-16

Abstract

The utility model relates to a compound anti-pulling cylinder lock. An inner core 2 is sheathed with an outer lock core 3 to form the lock core of the lock; the outer lock core 3 is sheathed in a lock casing 4; the cylinder in the lock comprises an upper cylinder 7, a middle cylinder 8 and a lower cylinder 9. The utility model has the advantages of novel structure, strong anti-theft performance, strong anti-poking performance, simple manufacturing technique and little increase of cost. The utility model is suitable for the existing various cylinder locks and can be produced by ordinary lock manufacturers.

Description

Compound anti-pulling cylinder lock

The utility model relates to a kind of lock: particularly relate to a kind of anti-pulling pellet lock.

Domestic and international disclosed cylinder lock is all adopting certain measure aspect anti-the dialling, for example " S " grooved, multiaspect pellet shot from a slingshot, special-shaped marble etc. at present.But these anti-group measures are still all perfect inadequately, and common people can push lock aside with non-key in a few minutes slightly through specialized training.Therefore make most tapered ends still lack reliable antitheft effect.

It is strong that the purpose of this utility model provides a kind of group performance simple in structure, anti-, can make the general group ineffective compound anti-pulling pellet lock head of locking method.

Main points of the present utility model are that traditional tapered end is changed into inside and outside dual lock core by a lock core, and change double pellet shot from a slingshot into triple pellets shot from a slingshot, and last pellet shot from a slingshot wherein and middle pellet shot from a slingshot adopt the stepped anti-pellet shot from a slingshot of dialling.

Accompanying drawing 1 is the compound anti-pulling pellet lock head sectional view that five groups of triple pellets shot from a slingshot are housed;

Accompanying drawing 2 is the anti-principle sectional views of dialling of internal cylinder;

Accompanying drawing 3 is to go up pellet anti-pull principle sectional view.

Be elaborated below in conjunction with the concrete structure and the anti-principle of dialling thereof of accompanying drawing to the utility model tapered end.

Among Fig. 11 is key, the 2nd, and internal cylinder, it is sleeved on the inside of outer lock core 3, and both concrete assembly methods are that the outer rim in internal cylinder 2 outer ends has a flange, the concave station tabling of it and outer lock core 3 inner edges; In the inner end of internal cylinder 2 annular groove is arranged, give located lateral, prevent that internal cylinder 2 from laterally sliding by the location pellet shot from a slingshot 10 of outer lock core 3 inner ends.The method of outer lock core 3 and lock housing 4 assemblings is that the outer rim in outer lock core 3 outer ends has a flange, the concave station tabling of it and lock housing 4 inner edges, and the root in the inner end of outer lock core 3 near lock housing 4 inner ends has a locking positioning collar 11.Five groups of pellets shot from a slingshot in the tapered end are made up of last pellet shot from a slingshot 7, middle pellet shot from a slingshot 8, following pellet shot from a slingshot 9 respectively.Last pellet shot from a slingshot wherein and middle pellet shot from a slingshot adopt the anti-pellet shot from a slingshot of dialling of staged.Respectively there is a pellet shot from a slingshot spring 6 by sealing cap 5 sealings on the top of pellet shot from a slingshot on each.

Fig. 2 and Fig. 3 have disclosed the internal cylinder 2 of the utility model tapered end and the anti-principle of dialling of last pellet shot from a slingshot 7 respectively.As can be seen from Figure 2, when dialling lock, middle pellet shot from a slingshot 8 is pushed the fitting face of internal cylinder 2 and outer lock core 3, though internal cylinder 2 turn, 3 of outer lock cores because of in the effect of pellet shot from a slingshot 8 can not rotate thereby the lock of still not opening.As can be seen from Figure 3, stageds are anti-dials pellet shot from a slingshot because last pellet shot from a slingshot 7 and middle pellet shot from a slingshot 8 adopts, so during poking lock, also be stuck the lock of therefore still not opening even outer lock core 3 rotates a minute angle.Have only as shown in Figure 1, when internal cylinder 2 is inserted key, five groups last pellet shot from a slingshot 7 and middle pellet shot from a slingshot 8 all are positioned at the fitting face of outer lock core 3 and lock housing 4, outer lock core 3 could rotate and lock be opened, and under free state, because the contact surface of middle pellet shot from a slingshot 8 and following pellet shot from a slingshot 9 can not be positioned at the fitting face of internal cylinder 2 and outer lock core 3, can not rotate so guarantee internal cylinder 3.

Tapered end of the present utility model causes general so-called MASTERKRY ineffective because the inner surface of pellet shot from a slingshot 9 can not be allocated on the fitting face of outer lock core 3 and internal cylinder 2 down, so its anti-reliability of dialling is considerably beyond existing various cylinder locks.

The utility model novel structure, manufacturing process are simple, cost increases seldom, and general lockmaking producer all can produce.This structure of the present utility model is applicable to existing various cylinder locks.

Claims

1, a kind of compound anti-pulling pellet lock head of forming by lock housing, lock core, pellet shot from a slingshot, pellet shot from a slingshot spring, shifting fork piece etc.; It is characterized in that:

[1] said lock core is sleeved on the inside of outer lock core 3 by internal cylinder 2; Outer lock core 3 is sleeved on the inside of lock housing 4;

[2] said pellet shot from a slingshot is made up of last pellet shot from a slingshot 7, middle pellet shot from a slingshot 8 and following pellet shot from a slingshot 9, and last pellet shot from a slingshot 7 wherein and middle pellet shot from a slingshot 8 adopt the anti-pellet shot from a slingshot of dialling of staged.

2, according to the said compound anti-pulling pellet lock head of claim 1, it is characterized in that the internal cylinder 2 and the assembly method of outer lock core 3 are, outer rim in internal cylinder 2 outer ends has a flange, the concave station tabling of it and outer lock core 3 inner edges, in the inner end of internal cylinder 2 annular groove is arranged, a pellet shot from a slingshot 10 that internal cylinder 3 is played the located lateral effect is arranged in the inner end of outer lock core 3.

3, according to the said compound anti-pulling pellet lock head of claim 1, it is characterized in that the outer lock core 3 and the assembly method of lock housing 4 are, outer rim in outer lock core 3 outer ends has a platform convex edge, the concave station tabling of it and lock housing 4 outer end inner edges, near the root of lock housing 4 inner ends, a laterally collar 11 of locking is arranged in the inner end of outer lock core 3.