CN212249541U

CN212249541U - Lock core

Info

Publication number: CN212249541U
Application number: CN202021227402.2U
Authority: CN
Inventors: 戚杞
Original assignee: Suzhou Saikelong Lock Co ltd
Current assignee: Suzhou Saikelong Lock Co ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2020-12-29
Anticipated expiration: 2030-06-29

Abstract

The utility model provides a lock core, in particular to the lock field, comprising a lock core and a key; the end part of the lock cylinder is provided with a key hole, and the upper end and the side part of the lock cylinder are respectively provided with a first spring hole and a second spring hole; a first marble and a second marble are respectively arranged in the first marble hole and the second marble hole; the upper end surface and the side part of the key are respectively provided with a plurality of first marble grooves and second marble grooves which are matched with the first marbles and the second marbles; the first marble groove is a strip-shaped groove viewed from the top, and the second marble groove is a circular groove viewed from the top; one end of the first pin tumbler is wedge-shaped, and the end part of the second pin tumbler is cone-shaped; semicircular clamping rings are symmetrically arranged on two sides of the lock core, a limiting groove is formed in the other end of the first pin, and the end portion of each clamping ring can be embedded into the limiting groove when the lock core rotates. The utility model discloses can improve the theftproof security of lock core.

Description

Lock core

Technical Field

The utility model belongs to the tool to lock field, concretely relates to lock core.

Background

The main function of the lock core is to transmit torque force by the head, so as to drive other parts of the lock to achieve unlocking and locking. The head structures of lock cylinders of padlocks, drawer locks, door locks and bicycle locks are different, and the torque transmission modes are different, but the functions are the same; the existing lock core is rotated, generally, a key is inserted into a lock hole, a marble reaches a designated position, and the key is twisted to further twist the lock core to realize unlocking, but the existing lock core has single marble and still needs to be further improved in anti-theft safety; in view of the deficiencies of the prior art, a need exists for a lock cylinder that improves the security of the lock cylinder against theft.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a lock core can improve the theftproof security of lock core.

The utility model provides a following technical scheme:

a lock cylinder includes a lock cylinder and a key; the end part of the lock cylinder is provided with a key hole, and the upper end and the side part of the lock cylinder are respectively provided with a first spring hole and a second spring hole; a first marble and a second marble are respectively arranged in the first marble hole and the second marble hole;

the upper end surface and the side part of the key are respectively provided with a plurality of first marble grooves and second marble grooves which are matched with the first marbles and the second marbles; the first marble groove is a strip-shaped groove viewed from the top, and the second marble groove is a circular groove viewed from the top; one end of the first pin tumbler is wedge-shaped, and the end part of the second pin tumbler is cone-shaped;

semicircular clamping rings are symmetrically arranged on two sides of the lock core, a limiting groove is formed in the other end of the first pin, and the end portion of each clamping ring can be embedded into the limiting groove when the lock core rotates.

Preferably, the cross section of the first pin tumbler is of an inverted convex structure, the limiting groove is arranged on the larger end face of the first pin tumbler, and the wedge-shaped structure is arranged on the smaller end face of the first pin tumbler.

Preferably, the first pin grooves are arranged in a non-parallel manner, that is, included angles between the first pin grooves are different from each other.

Preferably, the two sides of the lock cylinder are provided with clamping grooves, and the upper ends of the clamping grooves are communicated with the first pin holes; the clamping ring is embedded into the clamping groove, and a lug for fixing is arranged on the outer side of the clamping ring, namely the lug is fixed when the lock cylinder rotates, and the clamping ring is in a static state;

preferably, the clamping groove is arranged between two adjacent second bullet holes

Preferably, the upper end face and the lower end face of the key are respectively provided with a plurality of first bullet grooves, and the two sides of the key are respectively provided with a plurality of second bullet grooves.

The utility model has the advantages that:

the upper end surface and the side part of the key of the utility model are respectively provided with a plurality of first marble grooves and second marble grooves which are matched with the first marbles and the second marbles; the first marble groove is a strip-shaped groove viewed from the top, and the second marble groove is a circular groove viewed from the top; one end of the first pin tumbler is wedge-shaped, and the end part of the second pin tumbler is cone-shaped; the two sides of the lock core are symmetrically provided with semicircular clamping rings, the other end of the first marble is provided with a limiting groove, the end part of the clamping ring can be embedded into the limiting groove when the lock core rotates, and the anti-theft safety performance can be greatly improved by arranging two different marbles and marble grooves.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a lock cylinder block diagram;

FIG. 2 is a key structure;

FIG. 3 is a view showing a snap ring structure;

FIG. 4 is a view of the first pin tumbler configuration;

FIG. 5 is a view of a second pin tumbler configuration;

labeled as: 1. a lock cylinder; 11. a first bullet hole; 12. a second bullet hole; 13. a card slot; 2. a key; 21. a first bullet slot; 22. a second bullet slot; 3. a snap ring; 4. a first pin; 5. a second pin.

Detailed Description

Referring to fig. 1 to 5, a lock cylinder includes a lock cylinder 1 and a key 2; the end part of the lock cylinder 1 is provided with a key hole, and the upper end and the side part of the lock cylinder 1 are respectively provided with a first spring hole 11 and a second spring hole 12; a first marble 4 and a second marble 5 are respectively arranged in the first marble hole 11 and the second marble hole 12; the upper end surface and the side part of the key 1 are respectively provided with a plurality of first marble grooves 21 and second marble grooves 22 which are matched with the first marbles 4 and the second marbles 5; the first bullet groove 21 is a strip-shaped groove in plan view, and the second bullet groove 22 is a circular groove in plan view; one end of the first pin 4 is wedge-shaped, and the end of the first pin 5 is cone-shaped; semicircular clamping rings 3 are symmetrically arranged on two sides of the lock core 1, a limiting groove is formed in the other end of the first pin 4, and the end part of each clamping ring 3 can be embedded into the limiting groove when the lock core 1 rotates; by arranging two different marbles and marble grooves, the anti-theft safety performance can be greatly improved. The cross section of the first pin tumbler 4 is of an inverted convex structure, the limiting groove is arranged on the larger end face of the first pin tumbler 4, and the wedge-shaped structure is arranged on the smaller end face of the first pin tumbler 4; thus, the first pin 4 can be ensured to move smoothly; the first bullet grooves 21 are arranged in a non-parallel mode, namely included angles of the first bullet grooves 21 are different from each other, so that the anti-theft safety can be improved; clamping grooves 13 are formed in two sides of the lock cylinder 1, and the upper ends of the clamping grooves 13 are communicated with the first pin holes 11; the clamping ring 3 is embedded into the clamping groove 13, and a lug for fixing is arranged on the outer side of the clamping ring 3, namely the lug is fixed when the lock cylinder 1 rotates, and the clamping ring 3 is in a static state; so that opening is facilitated; the clamping groove 13 is arranged between two adjacent second bullet holes 12, so that the design layout is reasonable; the upper end surface and the lower end surface of the key 1 are respectively provided with a plurality of first marble grooves 21, and the two sides of the key 2 are respectively provided with a plurality of second marble grooves 22, so that the anti-theft safety can be further improved, and the key 1 can be inserted into a key hole without distinguishing the front side and the back side;

the utility model discloses a working method:

as shown in fig. 1 to 5, the key 1 is provided with a plurality of first pin grooves 21 and second pin grooves 22 on the upper end surface and the side part thereof, which are matched with the first pins 4 and the second pins 5; the first bullet groove 21 is a strip-shaped groove in plan view, and the second bullet groove 22 is a circular groove in plan view; one end of the first pin 4 is wedge-shaped, and the end part of the first pin 5 is cone-shaped; semicircular clamping rings 3 are symmetrically arranged on two sides of the lock core 1, a limiting groove is formed in the other end of the first pin 4, and the end part of each clamping ring 3 can be embedded into the limiting groove when the lock core 1 rotates; by arranging two different marbles and marble grooves, the anti-theft safety performance can be greatly improved;

although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A lock core is characterized in that: comprises a lock cylinder and a key; the end part of the lock cylinder is provided with a key hole, and the upper end and the side part of the lock cylinder are respectively provided with a first spring hole and a second spring hole; a first marble and a second marble are respectively arranged in the first marble hole and the second marble hole;

2. A lock cylinder according to claim 1, characterized in that: the cross section of the first marble is of an inverted convex structure, the limiting groove is arranged on the larger end face of the first marble, and the wedge-shaped structure is arranged on the smaller end face of the first marble.

3. A lock cylinder according to claim 2, characterized in that: the first pin grooves are arranged in a non-parallel mode, namely included angles of the first pin grooves are different.

4. A lock cylinder according to claim 3, characterized in that: clamping grooves are formed in two sides of the lock cylinder, and the upper ends of the clamping grooves are communicated with the first pin holes; the snap ring is embedded into the clamping groove, and the outer side of the snap ring is provided with a lug for fixing, namely, the lug is fixed when the lock cylinder rotates, and the snap ring is in a static state.

5. A lock cylinder according to claim 4, characterized in that: the clamping groove is formed between every two adjacent second bullet holes.

6. A lock cylinder according to claim 4, characterized in that: the upper end face and the lower end face of the key are respectively provided with a plurality of first marble grooves, and the two sides of the key are respectively provided with a plurality of second marble grooves.