CN201169978Y

CN201169978Y - Door lock core

Info

Publication number: CN201169978Y
Application number: CNU2008200849969U
Authority: CN
Inventors: 徐钜祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-03-26
Filing date: 2008-03-26
Publication date: 2008-12-24
Anticipated expiration: 2018-03-26

Abstract

The utility model relates to a lock core for a door lock. A key plug is formed on the circumferential surface where the fit of an outer sleeve of a lock core shaft and the lock core shaft are moveably sleeved, an special tumbler blind hole is arranged on the lock core shaft on the side part of axle line of the lock core shaft, the opening end of the special blind hole is crossed with and communicated with the key plug, the special blind hole is provided with a spring and an special tumbler, the special tumbler is provided with a circular slot, the inner wall of the outer sleeve of the lock core shaft is provided with a groove, the lock core shaft corresponding to the circular slot and the groove is provided with a through slot, the through slot is provided with a slide lock member connecting the circular slot and the groove, and one ends of slide lock members are connected into a whole by a lateral pin, and a reset spring is arranged between the lateral pin and the lock core. The lock core overcomes the defects that the lock core in the prior art has crude structural design, poorer theftproof performance and operating hand feeling. In the design, a double password mode of the special tumbler and the common tumbler greatly improves the theftproof performance of the lock core. The lock core has the advantages of compact structure, low fault rate, flexible opening and closing, and high reliability.

Description

A kind of door lock core

Affiliated technical field

The utility model relates to a kind of door lock core.

Background technology

Traditional lock core, generally all adopt upper and lower pellet shot from a slingshot or blade as Cipher mechanism, the structure design of upper and lower pellet shot from a slingshot is simpler and cruder, theftproof performance a little less than, and the employing blade is as the lock core of Cipher mechanism, all be to lock by the blade of difference arrangement and the groove fit of lock core shaft's overcoat, its structure design is also more common, and theftproof performance is not strong yet; And in use, the key of insertion swings easily, and the feel of operation is not good, and comparatively speaking, fault rate is also higher.

Summary of the invention

Simple and crude in order to overcome in the prior art common lock core structure designs, theftproof performance is weak, the not good problem of feel of operation, the utility model provides a kind of door lock core, the good reliability that compact conformation, the theftproof performance of this door lock core is strong, fault rate is low, use.

The technical scheme that its technical problem that solves the utility model adopts is: comprise lock core shaft's overcoat and be actively socketed on the interior lock core shaft of lock core shaft's overcoat, form key hole on the side face that lock core shaft and lock core shaft's overcoat are fitted, special-shaped pellet shot from a slingshot blind hole is set in the lock core shaft of the axis of lock core shaft sidepiece, the openend of abnormity pellet shot from a slingshot blind hole intersects with key hole and is communicated with, assembling spring and special-shaped pellet shot from a slingshot in the abnormity pellet shot from a slingshot blind hole, the end roof pressure of abnormity pellet shot from a slingshot is on the inwall of lock core shaft's overcoat, the abnormity pellet shot from a slingshot is provided with annular groove, the inwall of lock core shaft's overcoat is provided with groove, with annular groove, offer through-hole groove in the relative lock core shaft of groove, the sliding lock spare of installing contact annular groove and groove in the through-hole groove, one end of each sliding lock spare is fused by lateral pin, is provided with back-moving spring between lateral pin and lock core shaft.

The relative pellet shot from a slingshot hole, center of offering in lock core shaft's overcoat and lock core shaft, installing center pellet shot from a slingshot, central spring in the pellet shot from a slingshot hole, center.

Abnormity pellet shot from a slingshot and the dislocation of center pellet shot from a slingshot are arranged.

The center pellet shot from a slingshot is arranged between two groups of abnormity pellets shot from a slingshot of the both sides, axis that are divided into lock core shaft.

The key of lock core shaft inserts end face and is provided with outstanding anti-drilling pellet shot from a slingshot, and blind mouthful of end of special-shaped pellet shot from a slingshot blind hole fuses with lock core shaft.

The utility model is by above-mentioned specific design, adopts the double code mode of special-shaped pellet shot from a slingshot and common spring to improve the theftproof performance of lock core greatly, has compact conformation, fault rate is low, switching is flexible, reliable high advantage.

Description of drawings

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

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

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

Fig. 3 is the B-B sectional view of Fig. 2;

Fig. 4 is the C-C sectional view of Fig. 1;

Schematic diagram when Fig. 5 is Fig. 4 key turns.

The specific embodiment

As shown in the figure, the utility model comprises lock core shaft's overcoat 1 and the lock core shaft 2 that is actively socketed in lock core shaft's overcoat 1, form key hole 3 on the side face that lock core shaft 2 and lock core shaft's overcoat 1 are fitted, the key of lock core shaft 2 inserts end face and is provided with outstanding anti-drilling pellet shot from a slingshot 16, to strengthen anti-drilling performance.Special-shaped pellet shot from a slingshot blind hole 4 is set in the lock core shaft 2 of the axis of lock core shaft 2 sidepiece, and the openend of special-shaped pellet shot from a slingshot blind hole 4 intersects with key hole 3 and is communicated with, and blind mouthful of end of special-shaped pellet shot from a slingshot blind hole 4 fuses with lock core shaft 2.Assembling spring 5 and special-shaped pellet shot from a slingshot 6 in the abnormity pellet shot from a slingshot blind hole 4, the end roof pressure of abnormity pellet shot from a slingshot 6 is on the inwall of lock core shaft's overcoat 1, abnormity pellet shot from a slingshot 6 is provided with annular groove 8, the inwall of lock core shaft's overcoat 1 is provided with groove 9, offer through-hole groove 10 in the lock core shaft 2 relative with annular groove 8, groove 9, the sliding lock spare 11 of installing contact annular groove 8 and groove 9 in the through-hole groove 10, an end of each sliding lock spare 11 is fused by lateral pin 17, is provided with back-moving spring 15 between lateral pin 17 and lock core shaft 2.The relative pellet shot from a slingshot hole, center 12 of offering in lock core shaft's overcoat 1 and the lock core shaft 2, installing center pellet shot from a slingshot 13, central spring 14 in the pellet shot from a slingshot hole, center 12.Abnormity pellet shot from a slingshot 6 can design two groups in lock core shaft 2, be divided into the both sides, axis of lock core shaft 2, and center pellet shot from a slingshot 13 is arranged between two groups of abnormity pellets shot from a slingshot 6, and special-shaped pellet shot from a slingshot 6 and the 13 formation dislocation arrangements of center pellet shot from a slingshot.In three groups of 16 pellets shot from a slingshot, the password number of above-mentioned arrangement can reach more than 40 hundred million.When unblanking, insert key, key make progress pushing tow center pellet shot from a slingshot 13 and special-shaped pellet shot from a slingshot 6, the mating face that the mating face that makes 13 of upper and lower center pellets shot from a slingshot and lock core shaft 2, lock core shaft's overcoat are 1 flushes; The annular groove 8 of abnormity on the pellet shot from a slingshot 6 aligns with groove 9 slippages on lock core shaft overcoat 1 inwall, when key will drive lock core shaft 2 and rotates together, the transition face pushing tow lateral pin 17 and the compression reseting spring 15 of groove 9, one end of sliding lock spare 11 is pushed annular groove 8 on the special-shaped pellet shot from a slingshot 6, make lateral pin 17 and sliding lock spare 11 along with lock core shaft 2 rotates together, reach the purpose of unblanking after key is rotated further and puts in place.The backward rotation key puts annular groove 8 to special-shaped pellet shot from a slingshot 6 and the groove on lock core shaft's overcoat 1 inwall 9 in place relatively the time, back-moving spring 15 discharges to reset the end release annular groove 8 of sliding lock spare 11, an end of lateral pin 17 is entered groove 9, after extracting key, upper and lower center pellet shot from a slingshot 13 and each special-shaped pellet shot from a slingshot 6 slippages dislocation, the lock core locking.

Claims

1, a kind of door lock core, comprise lock core shaft's overcoat and be actively socketed on the interior lock core shaft of lock core shaft's overcoat, form key hole on the side face that lock core shaft and lock core shaft's overcoat are fitted, it is characterized in that in the lock core shaft (2) of the axis sidepiece of lock core shaft (2), special-shaped pellet shot from a slingshot blind hole (4) being set, the openend of abnormity pellet shot from a slingshot blind hole (4) intersects with key hole (3) and is communicated with, assembling spring (5) and special-shaped pellet shot from a slingshot (6) in the abnormity pellet shot from a slingshot blind hole (4), the end roof pressure of abnormity pellet shot from a slingshot (6) is on the inwall of lock core shaft's overcoat (1), abnormity pellet shot from a slingshot (6) is provided with annular groove (8), the inwall of lock core shaft's overcoat (1) is provided with groove (9), with annular groove (8), offer through-hole groove (10) in the relative lock core shaft (2) of groove (9), the sliding lock spare (11) of installing contact annular groove (8) and groove (9) in the through-hole groove (10), one end of each sliding lock spare (11) is fused by lateral pin (17), is provided with back-moving spring (15) between lateral pin (17) and lock core shaft (2).

2, a kind of door lock core according to claim 1 is characterized in that the relative pellet shot from a slingshot hole, center (12) of offering in lock core shaft's overcoat (1) and lock core shaft (2), installing center pellet shot from a slingshot (13), central spring (14) in the pellet shot from a slingshot hole, center (12).

3, a kind of door lock core according to claim 2 is characterized in that special-shaped pellet shot from a slingshot (6) and center pellet shot from a slingshot (13) dislocation arrangement.

4,, it is characterized in that center pellet shot from a slingshot (13) is arranged between two groups of abnormity pellets shot from a slingshot (6) of the both sides, axis that are divided into lock core shaft (2) according to claim 2 or 3 described a kind of door lock cores.

5, according to claim 1 or 2 or 3 described a kind of door lock cores, it is characterized in that the key insertion end face of lock core shaft (2) is provided with outstanding anti-drilling pellet shot from a slingshot (16), blind mouthful of end of special-shaped pellet shot from a slingshot blind hole (4) fuses with lock core shaft (2).

6, a kind of door lock core according to claim 4 is characterized in that the key insertion end face of lock core shaft (2) is provided with outstanding anti-drilling pellet shot from a slingshot (16), and blind mouthful of end of special-shaped pellet shot from a slingshot blind hole (4) fuses with lock core shaft (2).