CN102877701A

CN102877701A - Improved lock core mechanism

Info

Publication number: CN102877701A
Application number: CN2012103919165A
Authority: CN
Inventors: 徐钜祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-10-16
Filing date: 2012-10-16
Publication date: 2013-01-16
Anticipated expiration: 2032-10-16
Also published as: CN102877701B

Abstract

The invention relates to an improved lock core mechanism, which comprises a lock mandrel outer sleeve, a lock mandrel, a flat-head marble and a sharp-head marble; a safety groove is arranged in the peripheral wall of the sharp-head marble; a sliding groove is arranged in the mandrel shaft; a safety sheet and a spring are mounted in the sliding groove; a long groove is arranged in the safety sheet; the long groove is provided with an expansion part matched with the sharp-head marble to vertically move and a contraction part matched with the safety groove; a passive pushing oblique plane is arranged at the end part of the safety sheet; a safety marble hole is arranged in the lock mandrel; a compression spring and a safety marble are arranged in the safety marble hole; the upper end part of the safety marble is matched with a reset groove arranged in the inner wall of the lock mandrel outer sleeve; and an active pushing oblique plane forming sliding-pushing fit with the passive pushing oblique plane is arranged on the side wall of the safety marble. By using the improved lock core mechanism, the defect that a conventional lock core mechanism is weaker in theft prevention performance is overcome; through the design, the theft prevention performance of a lock core is improved greatly by adopting the safety sheet and the safety marble which are matched with each other; and the improved lock core mechanism has the advantages of strong stirring prevention performance, convenience in unlocking operation and strong reliability.

Description

A kind of improved lock core mechanism

Technical field

The present invention relates to a kind of improved lock core mechanism.

Background technology

Traditional lock core mechanism of door lock, general upper and lower pellet or the blade of adopting of Cipher mechanism in the lock core, wherein the structure design of upper and lower pellet is simpler and cruder, theftproof performance a little less than, and adopt blade 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, the theftproof performance of its structure design is not strong yet, and fault rate is higher in the use procedure.

Summary of the invention

For the theftproof performance that overcomes common lock core mechanism of door lock in the prior art is weak, the higher problem of fault rate in the use procedure, the invention provides a kind of improved lock core mechanism of door lock, the antitheft anti-group performance of this improved lock core mechanism of door lock is strong, unlock operation convenient, reliability is strong.

The technical solution adopted for the present invention to solve the technical problems is: comprise lock core shaft's overcoat and be actively socketed on the interior lock core shaft of lock core shaft's overcoat, the relative center marble hole of offering perforation in lock core shaft's overcoat and lock core shaft, install successively central spring, tack pellet and tip pellet in the marble hole of center, on the perisporium of tip pellet safety groove is set; Along lock core shaft above the center marble hole in the lock core shaft chute is set axially, the spring of safety plate is pressed on installing safety plate and top in the chute, offer elongated slot on the safety plate, have the enlarged portion that coupling tip pellet moves up and down and the contraction flow region that matches with safety groove on the elongated slot, the end of safety plate is provided with passive passing inclined-plane; In lock core shaft, radially arrange with the center marble hole and be in conplane insurance marble hole, installing stage clip and insurance pellet in the insurance marble hole, the reseting groove of offering on the upper end of insurance pellet and the lock core shaft outer casing inner wall matches, the sidewall of insurance pellet be provided with the formation of passive passing inclined-plane push to slide cooperate initiatively pass the inclined-plane.

The insurance pellet is made of the cylindrical portion of joining, round platform section and ball head, and ball head matches with reseting groove, and the sidewall of round platform section is for initiatively passing the inclined-plane.

The present invention is by above-mentioned specific design, the theftproof performance that adopts the safety plate that matches and insurance pellet greatly to improve lock core, have advantages of anti-ly dial that performance is strong, unlock operation convenience, failure rate is low, reliability be strong.

Description of drawings

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

Fig. 1 is structural representation of the present invention;

Fig. 2 is the assembling drawing that the present invention does not insert the key state;

Fig. 3 is that the present invention inserts key and the assembling drawing of the state that rotates to an angle;

Fig. 4 is the A-A sectional view of Fig. 2;

Fig. 5 is the B-B sectional view of Fig. 2;

Fig. 6 is the C-C sectional view of Fig. 3;

Fig. 7 is the D-D sectional view of Fig. 3;

Fig. 8 is the structural representation of insurance pellet among the present invention.

The specific embodiment

As shown in the figure, the present invention includes lock core shaft's overcoat 1 and the lock core shaft 2 that is actively socketed in lock core shaft's overcoat 1, the relative center marble hole 3 of offering perforation in lock core shaft's overcoat 1 and lock core shaft 2, install successively central spring 4, tack pellet 5 and tip pellet 6 in the center marble hole 3, safety groove 7 is set on the perisporium of tip pellet 6; Along lock core shaft 2 above the center marble hole 3 in the lock core shaft 2 chute 8 is set axially, the spring 10 of safety plate 9 is pressed on installing safety plate 9 and top in the chute 8, offer elongated slot 11 on the safety plate 9, have the enlarged portion 12 that coupling tip pellet 6 moves up and down and the contraction flow region 13 that matches with safety groove 7 on the elongated slot 11, the end of insurance 9 is provided with passive passing inclined-plane 14; In lock core shaft 2, radially arrange with center marble hole 3 and be in conplane insurance marble hole 15, installing stage clip 16 and insurance pellet 17 in the insurance marble hole 15, the reseting groove 18 of offering on the upper end of insurance pellet 17 and lock core shaft overcoat 1 inwall matches, the sidewall of insurance pellet 17 be provided with 14 formation of passive passing inclined-plane push to slide cooperate initiatively pass inclined-plane 19.Insurance pellet 17 is made of the cylindrical portion 17A that joins, the 17B of round platform section and ball head 17C, and ball head 17C matches with reseting groove 18, and the sidewall of the 17B of round platform section is for initiatively passing inclined-plane 19.When inserting

key

20,6 slippages of tip pellet make mating face and the lock core shaft 2 of 6 of tack pellet 5 and tip pellets, the mating face that lock core shaft's overcoat is 1 flushes, safety groove 7 on tip pellet 6 perisporiums also is in same plane with the chute 8 in the lock core shaft 2, when key 20 drives lock core shaft's 2 rotation, the ball head 17C of insurance pellet 17 breaks away from reseting groove 18, the inwall of lock core shaft's overcoat 1 pushes insurance pellet 17 relatively, insurance pellet 17 is slided in insurance marble hole 15, the inclined-plane 19 of initiatively passing of the insurance pellet round platform 17B of section matches with passive passing inclined-plane 14 on the safety plate 9, the resistance that makes safety plate 9 overcome spring 10 slides in chute 8, the contraction flow region 13 of elongated slot 11 snaps in the safety groove 7 of tip pellet 6 on the safety plate 9, tip pellet 6 is locked, and lock core shaft 2 is rotated further to unlatching; After lock core shaft's 2 reverse rotations put in place, the ball head 17C that stage clip 16 will insure pellet 17 advances to reseting groove 18, simultaneously, safety plate 9 is reverse slide under the reset response of spring 10, what the passive passing inclined-plane 14 of safety plate 9 also pushed the insurance pellet round platform 17B of section initiatively passes inclined-plane 19, the enlarged portion 12 of elongated slot 11 is alignd with tip pellet 6 on the safety plate 9, releasing is to the locking of tip pellet 6, after key 20 is extracted, tack pellet 5 and tip pellet 6 are in the effect lower slider of central spring 4, make mating face and the lock core shaft 2 of 6 of tack pellet 5 and tip pellets, the mating face dislocation that lock core shaft's overcoat is 1, the safety groove 7 of tip pellet 6 and 11 dislocation of the elongated slot on the safety plate 9, the lock core locking.Above-described embodiment only is that the preferred embodiment to a kind of improved lock core mechanism of door lock of the present invention is described; be not that design and the scope of inventing limited; under the prerequisite that does not break away from the present invention program; various external form modification and improvement that those skilled in the art make technical scheme of the present invention all should fall into the protection domain of a kind of improved lock core mechanism of door lock of the present invention.

Claims

1. improved lock core mechanism, comprise lock core shaft's overcoat and be actively socketed on the interior lock core shaft of lock core shaft's overcoat, the relative center marble hole (3) of offering perforation in lock core shaft's overcoat (1) and lock core shaft (2), install successively central spring (4), tack pellet (5) and tip pellet (6) in the center marble hole (3), it is characterized in that: safety groove (7) is set on the perisporium of tip pellet (6); Center marble hole (3) in lock core shaft (2) top axially arranges chute (8) along lock core shaft (2), the spring (10) of safety plate (9) is pressed on installing safety plate (9) and top in the chute (8), offer elongated slot (11) on the safety plate (9), have the enlarged portion (12) that moves up and down of coupling tip pellet (6) and the contraction flow region (13) that matches with safety groove (7) on the elongated slot (11), the end of safety plate (9) is provided with passive passing inclined-plane (14); In lock core shaft (2), radially arrange with center marble hole (3) and be in conplane insurance marble hole (15), installing stage clip (16) and insurance pellet (17) in the insurance marble hole (15), the reseting groove (18) of offering on upper end and lock core shaft's overcoat (1) inwall of insurance pellet (17) matches, the sidewall of insurance pellet (17) be provided with passive passing inclined-plane (14) formation push to slide cooperate initiatively pass inclined-plane (19).

2. a kind of improved lock core mechanism according to claim 1, it is characterized in that insuring pellet (17) is made of the cylindrical portion of joining (17A), round platform section (17B) and ball head (17C), ball head (17C) matches with reseting groove (18), and the sidewall of round platform section (17B) is for initiatively passing inclined-plane (19).