CN201043381Y

CN201043381Y - Spring lock core

Info

Publication number: CN201043381Y
Application number: CNU2007200395336U
Authority: CN
Inventors: 徐钜祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-06-08
Filing date: 2007-06-08
Publication date: 2008-04-02
Anticipated expiration: 2017-06-08

Abstract

The utility model relates to a spring lock barrel, which comprises a lock barrel outer casing and a lock barrel inner casing having a lock barrel axis. The lock barrel outer casing is enclosed outside the lock barrel inner casing. A core cylinder having a spring hole is fixed in the lock barrel inner casing. The lock barrel inner casing and the core cylinder are connected and fixed with pins. One end of the pin extends out of the core cylinder to form a positioning boss. The spring hole is opposite to spring holes on the lock barrel outer casing and the lock barrel inner casing. An upper spring and a lower spring are arranged in the opposite spring holes. A pressure spring is arranged above the upper spring. The upper end of the pressure spring is provided with an end pressure cover. The utility model overwhelms the defects of low fit precision, high mutual unlocking ratio and poor anti-theft performance of ordinary spring lock barrels in the prior art. By adopting the above design, the fit precision of the lock barrel is improved, and the utility model has the advantages of simple and compact structure, low mutual unlocking ratio, high anti-theft performance and high reliability.

Description

Lock cylinder

Affiliated technical field

The utility model relates to a kind of lock cylinder.

Background technology

Traditional lock cylinder all is made of cover, pellet shot from a slingshot and spring etc. in the lock core of lock core sleeve, mandrel with lock, in use has the defective that quality of fit is low, mutual opening rate is high, theftproof performance is relatively poor, and the burglar uses some special tools to be easy to open.

Summary of the invention

In order to overcome the problem that quality of fit is low, mutual opening rate is high, theftproof performance is relatively poor that the common spring lock core exists in the prior art, the utility model provides a kind of lock cylinder, this lock cylinder simple in structure, quality of fit is high, mutual opening rate is low, theftproof performance is strong.

The technical scheme that its technical problem that solves the utility model adopts is: the interior cover of lock core that comprises lock core sleeve and mandrel with lock, the mutual socket of cover in lock core sleeve and the lock core, the stem stem in fixed band pellet shot from a slingshot hole in the cover in lock core, the pellet shot from a slingshot hole that puts in pellet shot from a slingshot hole and lock core sleeve, the lock core is relative, upper strata pellet shot from a slingshot and lower floor's pellet shot from a slingshot are set in the relative pellet shot from a slingshot hole, the top of upper strata pellet shot from a slingshot is a stage clip, and there is the end cap gland stage clip upper end.

Be connected and fixed by pin between cover and the stem stem in the lock core, an end of pin stretches out to form to locate outside stem stem dashes forward.

The end cap gland is in the chute of lock core sleeve.

The utility model has improved the quality of fit of lock core greatly by above-mentioned specific design, has advantage simple and compact for structure, that mutual opening rate is low, theftproof performance is strong, reliability is high.

Description of drawings

Below in conjunction with drawings and Examples detailed content of the present utility model is described.

Structural representation when Fig. 1 is the utility model insertion key;

Fig. 2 is the structural representation of the utility model when extracting key;

Fig. 3 is a decomposition texture schematic diagram of the present utility model.

The specific embodiment

As shown in the figure, the utility model comprises the interior cover 3 of the lock core of lock core sleeve 1 and mandrel with lock 2, cover 3 mutual sockets in lock core sleeve 1 and the lock core, the stem stem 5 in fixed band pellet shot from a slingshot hole 4 in the cover 3 in lock core, be connected and fixed by pin 12 between cover 3 and the stem stem 5 in the lock core, one end of pin 12 stretches out and form location prominent 13 outside stem stem 5, pellet shot from a slingshot hole 4 and lock core sleeve 1, pellet shot from a slingshot hole 6 in the lock core on the cover 3,7 is relative, upper strata pellet shot from a slingshot 8 and lower floor's pellet shot from a slingshot 9 are set in the relative pellet shot from a slingshot hole, the top of upper strata pellet shot from a slingshot 8 is a stage clip 10, there are end cap 11 glands stage clip 10 upper ends, and end cap 11 glands are in the chute 14 of lock core sleeve 1.When key does not insert, upper strata pellet shot from a slingshot 8 is under the pressure of stage clip 10 between the pellet shot from a slingshot hole 6,7 of cover 3 in lock core sleeve 1 and the lock core, cover 3 and stem stem 5 all can not rotate in the lock core, after key inserts, leading section leans prominent 13 location, location of pin 12, and key promotes lower floor's pellet shot from a slingshot 9 simultaneously all enters in the pellet shot from a slingshot hole 6 of lock core sleeve 1 upper strata pellet shot from a slingshot 8, and the lower surface flushes with mating face between the pellet shot from a slingshot hole 6,7, at this moment, key can drive in the stem stem 5, lock core cover 3 and lock core shaft 2 and rotates and unblank.

Claims

1. lock cylinder, the interior cover of lock core that comprises lock core sleeve and mandrel with lock, the mutual socket of cover in lock core sleeve and the lock core, the stem stem (5) that it is characterized in that the middle fixed band pellet shot from a slingshot hole (4) of cover (3) in lock core, pellet shot from a slingshot hole (4) is relative with the pellet shot from a slingshot hole (6,7) on lock core sleeve (1), the interior cover of lock core (3), upper strata pellet shot from a slingshot (8) and lower floor's pellet shot from a slingshot (9) are set in the relative pellet shot from a slingshot hole, and the top of upper strata pellet shot from a slingshot (8) is stage clip (10), and there is end cap (11) gland stage clip (10) upper end.

2. lock cylinder according to claim 1 is characterized in that being connected and fixed by pin (12) between interior cover of lock core (3) and the stem stem (5), and an end of pin (12) stretches out and form location prominent (13) outside stem stem (5).

3. lock cylinder according to claim 1 and 2 is characterized in that end cap (11) gland is in the chute (14) of lock core sleeve (1).