CN210598473U

CN210598473U - Lock and key matched with same

Info

Publication number: CN210598473U
Application number: CN201920996935.8U
Authority: CN
Inventors: 李�真
Original assignee: Jincheng College of Sichuan University
Current assignee: Jincheng College of Sichuan University
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-05-22
Anticipated expiration: 2029-06-28

Abstract

The utility model discloses a lock, which comprises a lock sleeve and a lock core, wherein the lock core is arranged in the lock sleeve, a channel for passing a key is arranged in the lock core, a plurality of ball grooves a are also arranged on the lock core, a ball groove b corresponding to the ball groove a is arranged on the inner side of the lock sleeve, ball a with different lengths is arranged in the ball groove a, a ball b is arranged in the ball groove b, the ball a is contacted with the ball b, a spring is arranged at one end of the ball b, which is far away from the ball a, and the spring is fixedly connected with one end of the ball groove b; the bottom of the channel is provided with a spring slot c, one end, close to the spring slot c, of the spring slot c is communicated with the channel through a cylindrical cavity, a sliding polygonal marble c is arranged in the spring slot c, the spring slot c also corresponds to a spring slot d, the spring slot d is arranged on the lock sleeve, a marble d is arranged in the spring slot d, and the marble d is connected with the bottom of the spring slot d through a spring. The utility model discloses a set up the lock of different specifications, the lock of different specifications only lies in the fixed position difference of pellet shot from a slingshot, has realized that a key opens several locks.

Description

Lock and key matched with same

Technical Field

The invention relates to the field of anti-theft locks, in particular to a lock and a key matched with the lock and application of the lock.

Background

The prior art is a shrapnel type anti-theft lock (patent application No. 200710160958.7, publication No. CN 101196085). The opening and sealing modes are as follows: in the inserting process of the key, through the insertion of the key, the elastic sheets in the lock head are enabled to be completely separated from the locking state and enter the rotary interface of the lock cylinder, but the lock cylinder cannot be rotated due to the fact that the elastic sheets are separated from the locking state at the moment, the circular control sheet must be driven to rotate through the key, the circular control sheet pushes the boss at the end part of the guide rod to move backwards in the axial direction and is separated from the groove in the lock sleeve, and the lock cylinder can be enabled to be completely in the opening state through the matching of the guide rod braking teeth on the guide rod and the tooth grooves of. In the process of pulling out the key, the key returns to the pulling-out right position, the guide rod moves forwards in the axial direction by virtue of the spring at the rear end, so that the guide rod braking teeth on the guide rod are separated from the tooth grooves on the elastic sheet, then the lug boss on the guide rod enters the groove on the lock sleeve to generate one-time locking, and the key can be pulled out at the moment. After the key pulls the key hole of the spring plate in sequence, each spring plate at the moment is separated from the engagement with the guide rod brake teeth and returns to the locking position by the spring, and the locking is secondary locking.

There is one key to unlock one lock, resulting in the tedious of finding the matching key and carrying multiple keys when unlocking.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a lock and a key matched with the lock, so that the trouble of finding and matching the key and carrying a plurality of keys during unlocking is avoided.

The purpose of the invention is realized by the following technical scheme: a lock comprises a lock sleeve and a lock core, wherein the lock core is arranged in the lock sleeve, a channel for passing a key is arranged in the lock core, a plurality of bullet grooves a are also arranged on the lock core, bullet grooves b which correspond to the bullet grooves a are arranged on the inner side of the lock sleeve, bullets a with different lengths are arranged in the bullet grooves a, bullets b are arranged in the bullet grooves b, the bullets a are in contact with the bullets b, a spring is arranged at one end, away from the bullets a, of the bullet b, and the spring is fixedly connected with one end of the bullet grooves b; the bottom of the channel is provided with a spring slot c, one end, close to the spring slot c, of the spring slot c is communicated with the channel through a cylindrical cavity, a sliding polygonal marble c is arranged in the spring slot c, the spring slot c also corresponds to a spring slot d, the spring slot d is arranged on the lock sleeve, a marble d is arranged in the spring slot d, and the marble d is connected with the bottom of the spring slot d through a spring.

Preferably, the marble a, the marble b, the marble c and the marble d are arranged in the corresponding marble groove in a sliding manner.

Preferably, one of the marbles a is fixedly connected with the marble groove a, and the marble b, the marble c and the other marbles a are arranged in the corresponding marble grooves in a sliding manner.

Preferably, the polygonal marble c comprises a cylinder and a plurality of prisms annularly arranged on the cylinder, and sliding grooves for sliding the prisms are formed in the inner sides of the marble grooves c.

Preferably, the multi-edge marble c is a three-edge marble.

A key comprises a plurality of groups of key teeth, wherein each key tooth comprises a transition platform, a pushing inclined surface and a back pressure inclined surface, the transition platform is in transition connection with the pushing inclined surface and the back pressure inclined surface, the tooth platform is arranged between the pushing inclined surface and the back pressure inclined surface, and the transition platform and the tooth platform can be in contact with a marble a, a marble b and a marble c.

Preferably, the front end of the key is provided with a primary contact component, and the primary contact component comprises a protrusion which can be arranged corresponding to the prism.

The use of a lock and a key, wherein a plurality of locks and a single key are used together at the same place.

The invention has the beneficial effects that:

according to the invention, through arranging the locks with different specifications, the locks with different specifications are different only in the fixed positions of the marbles, so that the locks can be unlocked by one key, and the problem of complexity in finding and matching the key and carrying a plurality of keys during unlocking is solved.

The invention realizes secondary unlocking and improves the anti-theft performance.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a marble d in part A of the present invention;

FIG. 3 is a schematic view of the structure of the bump of the present invention.

Detailed Description

The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.

Examples

As shown in fig. 1-3, a lock comprises a lock sleeve 1 and a lock cylinder 2, wherein the lock cylinder 2 is arranged in the lock sleeve 1, a passage for passing a key is arranged in the lock cylinder 2, and when the lock works, the key can realize unlocking through a series of actions in the passage. The lock core 2 is also provided with a plurality of ball grooves a21, the inner side of the lock sleeve 1 is provided with a ball groove b11 corresponding to the ball groove a21, balls a211 with different lengths are arranged in the ball groove a21, a ball b111 is arranged in the ball groove b11, the ball a211 and the ball b111 are arranged in a contact manner, one end of the ball b111, far away from the ball a211, is provided with a spring, and the spring is fixedly connected with one end of the ball groove b 11; when a key enters the lock cylinder 2, the marble a211 and the marble b111 are abutted, namely the marble a211 pushes the marble b111 upwards, so that the marble b111 cannot be clamped by the marble groove a21, the lock cylinder 2 rotates, after the lock is unlocked, due to the loss of the function of the key, the marble b111 moves downwards under the action of the spring, the marble b111 is clamped by the marble groove a21, and the lock cylinder 2 is fixed.

The bottom of the channel 3 is provided with a ball groove c31, one end, close to the ball groove c31, of the ball groove c31 is communicated with the channel 3 through a cylindrical cavity 4, a sliding polygonal ball c311 is arranged in the ball groove c31, the ball groove c31 further corresponds to a ball groove d12, the ball groove d12 is arranged on the lock sleeve 1, a ball d121 is arranged in the ball groove d12, and the ball d121 is connected with the bottom of the ball groove d12 through a spring.

Specifically, in one embodiment, the pins a211, b111, c and d121 are slidably disposed in the corresponding pin grooves. When the key works, the pin a211, the pin b111, the pin c and the pin d121 can slide in the corresponding pin grooves to realize unlocking.

In another embodiment, the marble a211, the marble b111, the marble c, and the marble d121 are formed by fixedly connecting one marble a211 with the marble groove a21, and slidably arranging the marble b111, the marble c, and the other marbles a211 in the corresponding marble grooves. By randomly fixing one of the marbles a211, only a specific key can be opened, and the confidentiality of the key is improved.

Specifically, the polygonal bullet c311 includes a cylinder and a plurality of prisms annularly arranged on the cylinder, and a sliding slot for sliding the prisms is arranged inside the bullet slot c 31. The multi-edge marble c311 is a three-edge marble.

A key comprises a plurality of groups of key teeth, wherein each key tooth comprises a transition platform 61, a pushing inclined surface 62 and a back pressure inclined surface 63, the transition platform 61 is in transition connection with the pushing inclined surface 62 and the back pressure inclined surface 63, a tooth platform 64 is arranged between the pushing inclined surface 62 and the back pressure inclined surface 63, and the transition platform 61 and the tooth platform 64 can be in contact with a marble a211, a marble b111 and a marble c.

Specifically, the front end of the key is provided with a primary contact part, and the primary contact part comprises a protrusion 5 which can be arranged corresponding to the prism.

The unlocking project of the invention is as follows:

a key is inserted into the lock, and the protrusion 5 abuts against the edge of the polygonal marble c311, so that the marble d121 is flicked, and primary unlocking is realized; when a key is inserted, the transition platform 61 and the tooth flower platform 64 push the marble a211, so that the marble b111 and the marble c cannot be clamped out, and secondary unlocking is realized.

The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A lock, characterized by: the lock comprises a lock sleeve and a lock core, wherein the lock core is arranged in the lock sleeve, a channel for passing a key is arranged in the lock core, a plurality of bullet grooves a are also arranged on the lock core, bullet grooves b which correspond to the bullet grooves a are arranged on the inner side of the lock sleeve, bullets a with different lengths are arranged in the bullet grooves a, bullets b are arranged in the bullet grooves b, the bullets a are in contact with the bullets b, a spring is arranged at one end, away from the bullets a, of the bullet b, and the spring is fixedly connected with one end of the bullet grooves b; the bottom of the channel is provided with a spring slot c, one end, close to the spring slot c, of the spring slot c is communicated with the channel through a cylindrical cavity, a sliding polygonal marble c is arranged in the spring slot c, the spring slot c also corresponds to a spring slot d, the spring slot d is arranged on the lock sleeve, a marble d is arranged in the spring slot d, and the marble d is connected with the bottom of the spring slot d through a spring.

2. A lock according to claim 1, wherein: the marble a, the marble b, the marble c and the marble d are arranged in the corresponding marble groove in a sliding manner.

3. A lock according to claim 1, wherein: one marble a is fixedly connected with the marble groove a, and the marble b, the marble c and the other marbles a are arranged in the corresponding marble grooves in a sliding manner.

4. A lock according to claim 1, wherein: the multi-side marble c comprises a cylinder and a plurality of prisms annularly arranged on the cylinder, and sliding grooves for sliding the prisms are formed in the inner side of the marble groove c.

5. A lock according to claim 4, wherein: the multi-edge marble c is a three-edge marble.

6. A key, characterized by: the key bit comprises a plurality of groups of key bits, wherein each key bit comprises a transition platform, a pushing inclined plane and a back pressure inclined plane, the transition platform is in transition connection with the pushing inclined plane and the back pressure inclined plane, a bit platform is arranged between the pushing inclined plane and the back pressure inclined plane, and the transition platform and the bit platform can be in contact arrangement with the pins a, the pins b and the pins c in the claim 1.

7. A key as defined in claim 6, wherein: the key is provided at its front end with a primary contact member comprising a projection corresponding to the prism of claim 4.