CN215760963U

CN215760963U - Special-shaped key lock

Info

Publication number: CN215760963U
Application number: CN202121236494.5U
Authority: CN
Inventors: 马海燕
Original assignee: Changzhou Changbei Lock Co ltd
Current assignee: Changzhou Changbei Lock Co ltd
Priority date: 2021-06-01
Filing date: 2021-06-01
Publication date: 2022-02-08
Anticipated expiration: 2031-06-01

Abstract

The utility model relates to a special-shaped key lockset, which comprises a shell, wherein a key assembly, a spring assembly and a locking device are arranged on the shell, the key assembly comprises a main body, a handle, a first tooth block and a second tooth block, the main body is arranged in a wave shape, the two sides of the main body are centrosymmetric, the handle is arranged at one end of the main body, a plurality of key teeth are arranged on the first tooth block and the second tooth block, the first tooth block and the second tooth block are respectively provided with two groups, one group of the first tooth block and the second tooth block are arranged at one side of the main body, and the other group of the first tooth block and the second tooth block are centrosymmetric with the group and are arranged at the other side of the main body; the locking device comprises a rotating shaft, a gear and a moving block, one end of the rotating shaft is connected with the bullet component, the other end of the rotating shaft is connected with the gear, the moving block is arranged below the gear, and a rack meshed with the gear is arranged on the moving block. The utility model can reduce the mutual unlocking rate of the key and the lock by arranging four groups of movable bullet components and fixed bullet components to be matched with the key teeth.

Description

Special-shaped key lock

Technical Field

The utility model relates to the technical field of locks, in particular to a special-shaped key lock.

Background

At present, locks on the market are various in types and structures, and among them, the most widely applied lock in people's life is a spring lock. The lock head of the spring lock in the prior art is mostly composed of a lock body, a lock core and a spring assembly, wherein the lock core is provided with a key hole. The working principle is that when a key corresponding to the lock head is inserted, the tooth surfaces of the key correspond to the marbles one by one, so that the height of each marble is positioned at the contact surface of the lock body and the lock core, and then the lock can be unlocked by rotating the lock core.

Patent No. CN99108078.5 discloses a cylinder lock, in which the main body of the key is flat, and when in use, the key has the defects of easy imitation and high mutual opening rate; in addition, only one group of bullet assemblies are arranged, so that the bullet assemblies can be easily opened by using a thin iron sheet or a master key, the mutual opening rate is high, and the safety is low; meanwhile, the key can be inserted into the key hole only after the front side and the back side of the key are distinguished when in use.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the problems in the prior art, the utility model provides a special-shaped key lockset so as to solve the technical problems in the background technology.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: a special-shaped key lock comprises a shell, wherein a key assembly, a spring assembly and a locking device are arranged on the shell, the key assembly comprises a main body, a handle, a first tooth block and a second tooth block, the main body is wave-shaped, two sides of the main body are in central symmetry, the handle is arranged at one end of the main body, a plurality of key teeth are arranged on the first tooth block and the second tooth block respectively, the first tooth block and the second tooth block are provided with two groups, one group of the first tooth block and the second tooth block is arranged on one side of the main body, and the other group of the first tooth block and the second tooth block and the group of the first tooth block and the second tooth block are arranged on the other side of the main body in central symmetry; the locking device comprises a rotating shaft, a gear and a moving block, one end of the rotating shaft is connected with the bullet component, the other end of the rotating shaft is connected with the gear, the moving block is arranged below the gear, and a rack meshed with the gear is arranged on the moving block.

Preferably, the bullet assembly includes a fixed bullet assembly, a movable bullet assembly, a key hole and a lock core, the lock core is arranged in the shell, the key hole is arranged in the lock core and is matched with the main body, the fixed bullet assembly is arranged in the shell, the movable bullet assembly is arranged in the lock core, and the fixed bullet assembly and the movable bullet assembly are correspondingly arranged. The design of the spring assembly is that the lock cylinder is clamped with the shell when the key assembly is not inserted into the key hole, and when the key assembly is inserted into the key hole, the lock cylinder and the shell move through the matching of the movable spring assembly and the key bit, so that the lockset can be conveniently opened.

In a further preferred aspect, the fixed ball assembly includes a fixed ball hole, a first ball, and a spring, the fixed ball hole is disposed in the housing, the first ball is disposed in the fixed ball hole, one end of the spring is connected to the first ball, and the other end is connected to the fixed ball hole. The design of the fixed spring assembly is used for clamping the lock cylinder and the shell when the key assembly is not inserted into the key hole.

In a further preferred embodiment, the movable pin tumbler assembly includes a movable pin tumbler hole and a second pin tumbler, the movable pin tumbler hole is disposed on the lock cylinder, the second pin tumbler is disposed in the movable pin tumbler hole, and one end of the second pin tumbler is in contact with the first pin tumbler and the other end of the second pin tumbler is in contact with the key bit. The movable spring assembly is designed to be matched with the key teeth when the key assembly is inserted into the key hole, so that the lock cylinder and the shell can move, and the lock can be conveniently opened.

In a further preferred embodiment, the plurality of key bits are all of different depths. The design that the depth of the key bit is different can prevent the lock from being opened by using the thin iron sheet.

In a further preferred mode, four sets of the fixed ball assemblies and the movable ball assemblies are arranged, the four sets of the fixed ball assemblies are arranged in the shell, the four sets of the movable ball assemblies are arranged on the lock cylinder, and the four sets of the second balls are different in height and are respectively matched with the key teeth. The four groups of fixed bullet assemblies and movable bullet assemblies can improve the safety of the lockset.

Preferably, the moving block is provided with a stop block. The design of stopper, the convenience corresponds fixed bullet subassembly and activity bullet subassembly.

Preferably, the moving block is provided with a sliding groove, and the housing is provided with a sliding block matched with the sliding groove. The sliding grooves and the sliding blocks are designed to facilitate the moving block to move in the shell.

(III) advantageous effects

Compared with the prior art, the utility model provides a special-shaped key lockset, which has the following beneficial effects:

according to the utility model, the main body of the key assembly is designed into a wave shape, so that a thin iron sheet or a master key can be prevented from being inserted into a key hole, and the mutual unlocking rate of the key and a lockset is reduced; in addition, by arranging four groups of movable bullet components and fixed bullet components to be matched with the key teeth, the mutual unlocking rate of the key and the lock can be further reduced, and the safety of the lock is greatly improved; simultaneously, through setting the wave both sides of main part to central symmetry to and set up two sets of first tooth piece and second tooth piece central symmetry in the both sides of main part, make the key subassembly need not distinguish the positive and negative when using, make the operation simpler, convenient.

Drawings

FIG. 1 is a schematic view of an overall structure of a special-shaped key lock according to the present invention;

FIG. 2 is a schematic view of the present invention with the outer shell removed;

FIG. 3 is a schematic view of the key assembly and the second pin tumbler combination of the present invention;

FIG. 4 is a schematic structural view of the lock cylinder of the present invention;

fig. 5 is a schematic structural view of the housing of the present invention.

In the figure: 1. a housing; 2. a main body; 3. a handle; 4. a first tooth block; 5. a second tooth block; 6. a key bit; 7. a rotating shaft; 8. a gear; 9. a moving block; 10. a rack; 11. a key hole; 12. a lock cylinder; 13. fixing the bullet hole; 14. a first pin; 15. a spring; 16. a movable bullet hole; 17. a second pin; 18. a limiting block; 19. a chute; 20. a slide block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1:

referring to fig. 1-5, a special-shaped key lock comprises a housing 1, a key assembly, a spring assembly and a locking device are arranged on the housing 1, the key assembly comprises a main body 2, a handle 3, a first tooth block 4 and a second tooth block 5, the main body 2 is wave-shaped, two sides of the main body 2 are centrosymmetric, the handle 3 is arranged at one end of the main body 2, key teeth 6 with different depths are arranged on the first tooth block 4 and the second tooth block 5, two groups of the first tooth block 4 and the second tooth block 5 are arranged, one group of the first tooth block 4 and the second tooth block 5 are arranged at one side of the main body 2, and the other group of the first tooth block 4 and the second tooth block 5 and the group of the first tooth block 4 and the second tooth block 5 are centrosymmetric at the other side of the main body 2; the locking device comprises a rotating shaft 7, a gear 8 and a moving block 9, one end of the rotating shaft 7 is connected with the spring component, the other end of the rotating shaft is connected with the gear 8, the moving block 9 is arranged below the gear 8, and a rack 10 meshed with the gear 8 is arranged on the moving block 9. The depth of the plurality of key bits 6 is different. The moving block 9 is provided with a stop block 18. The moving block 9 is provided with a sliding groove 19, and the housing 1 is provided with a sliding block 20 matched with the sliding groove 19.

In this embodiment, the bullet subassembly includes fixed bullet subassembly, movable bullet subassembly, keyway 11 and lock core 12, and lock core 12 sets up in shell 1, and keyway 11 sets up in lock core 12, and with main part 2 cooperation, and fixed bullet subassembly sets up in shell 1, and the movable bullet subassembly sets up in lock core 12, and fixed bullet subassembly and movable bullet subassembly correspond the setting. In use, the key assembly is inserted into the keyway 11, and the interface of the movable and fixed ball assemblies is positioned at the interface of the lock cylinder 12 and the housing 1 by the cooperation of the movable ball assembly and the key assembly, so that the lock cylinder 12 and the housing 1 can rotate.

In this embodiment, the fixed ball assembly includes a fixed ball hole 13, a first ball 14, and a spring 15, the fixed ball hole 13 is disposed in the case 1, the first ball 14 is disposed in the fixed ball hole 13, one end of the spring 15 is connected to the first ball 14, and the other end is connected to the fixed ball hole 13. The movable ball assembly comprises a movable ball hole 16 and a second ball 17, the movable ball hole 16 is arranged on the lock core 12, the second ball 17 is arranged in the movable ball hole 16, one end of the second ball is contacted with the first ball 14, and the other end of the second ball is contacted with the key tooth 6. In use, the key assembly is inserted into the keyway 11, and the second pins 17 move in the movable pin holes 16, so that one end of each second pin 17 is engaged with the key bit 6, and the contact surfaces of the second pins 17 and the first pins 14 are positioned at the interface between the lock cylinder 12 and the housing 1, so that the lock cylinder 12 and the housing 1 can rotate.

In the present embodiment, four sets of the fixed ball assemblies and the movable ball assemblies are provided, the four sets of the fixed ball assemblies are arranged in the shell 1, the four sets of the movable ball assemblies are arranged on the lock cylinder 12, and the four sets of the second balls 17 have different heights and are respectively matched with the key teeth 6. When in use, the four groups of fixed bullet components and movable bullet components respectively correspond to the key teeth 6 on the two groups of first tooth blocks 4 and the two groups of second tooth blocks 5, and the movable bullet components are respectively matched with the key teeth 6 on the two groups of first tooth blocks 4 and the two groups of second tooth blocks 5, so that the lock cylinder 12 and the shell 1 can rotate.

Example 2:

in summary, when the lock needs to be unlocked, the key assembly is inserted into the key hole 11, the main body 2 is matched with the key hole 11, the key teeth 6 on the two sets of first tooth blocks 4 and the second tooth blocks 5 correspond to the four sets of movable pin assemblies respectively, the second pins 17 move in the movable pin holes 16, the second pins 17 correspond to the key teeth 6 one by one, the first pins 14 are pushed out of the movable pin holes 16, the springs 15 are in a compressed state at the time, the contact surfaces of the first pins 14 and the second pins 17 are positioned at the interface of the lock cylinder 12 and the housing 1, the clamping state between the lock cylinder 12 and the housing 1 is released, the lock cylinder 12 can rotate in the housing 1, the handle 3 is rotated clockwise, the lock cylinder 12 is rotated through the matching of the main body 2 and the lock cylinder 12, the gear 8 is rotated clockwise through the rotating shaft 7, and the moving block 9 is driven by the rack 10 meshed with the gear 8 to move along the sliding groove 19 towards the housing 1, thereby unlocking the lock.

Example 3:

in summary, when the lock needs to be locked, the handle 3 is rotated counterclockwise, the lock core 12 is driven to rotate by the cooperation of the main body 2 and the lock core 12, the gear 8 is driven to rotate counterclockwise by the rotating shaft 7, the moving block 9 is driven to move out of the housing 1 along the sliding groove 19 by the rack 10 meshed with the gear 8 until the limit block 18 contacts the housing 1, the moving pin assemblies and the fixed pin assemblies correspond to each other one by one, the key assembly is withdrawn from the key hole 11, the spring 15 is reset from the compressed state, the first pin 14 moves into the moving pin hole 16 along the fixed pin hole 13, one end of the first pin 14 is in the fixed pin hole 13, the other end of the first pin is in the moving pin hole 16, the position between the lock core 12 and the housing 1 is fixed, and the lock core 12 cannot rotate in the housing 1.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A special-shaped key lockset comprises a shell (1), and is characterized in that: the shell (1) is provided with a key assembly, a spring assembly and a locking device, the key assembly comprises a main body (2), a handle (3), a first tooth block (4) and a second tooth block (5), the main body (2) is wave-shaped, the two sides of the main body (2) are centrosymmetric, the handle (3) is arranged at one end of the main body (2), the first tooth block (4) and the second tooth block (5) are respectively provided with key teeth (6) with different depths, the first tooth block (4) and the second tooth block (5) are respectively provided with two groups, and wherein a set of said first (4) and second (5) blocks is arranged on one side of said body (2), the other group of the first tooth block (4) and the second tooth block (5) and the group of the first tooth block (4) and the second tooth block (5) are arranged on the other side of the main body (2) in a centrosymmetric manner; the locking device comprises a rotating shaft (7), a gear (8) and a moving block (9), one end of the rotating shaft (7) is connected with the bullet component, the other end of the rotating shaft is connected with the gear (8), the moving block (9) is arranged below the gear (8), and a rack (10) meshed with the gear (8) is arranged on the moving block (9).

2. A profiled key lock as claimed in claim 1, wherein: the bullet subassembly includes fixed bullet subassembly, activity bullet subassembly, key hole (11) and lock core (12), lock core (12) set up in shell (1), key hole (11) set up in lock core (12), and with main part (2) cooperation, fixed bullet subassembly sets up in shell (1), the activity bullet subassembly sets up in lock core (12), fixed bullet subassembly and the corresponding setting of activity bullet subassembly.

3. A profiled key lock as claimed in claim 2, wherein: the fixed ball assembly comprises a fixed ball hole (13), a first ball (14) and a spring (15), the fixed ball hole (13) is arranged in the shell (1), the first ball (14) is arranged in the fixed ball hole (13), one end of the spring (15) is connected with the first ball (14), and the other end of the spring is connected with the fixed ball hole (13).

4. A profiled key lock as claimed in claim 3, wherein: the movable ball component comprises a movable ball hole (16) and a second ball (17), the movable ball hole (16) is arranged on the lock cylinder (12), the second ball (17) is arranged in the movable ball hole (16), one end of the second ball is in contact with the first ball (14), and the other end of the second ball is in contact with the key tooth (6).

5. A profiled key lock as claimed in claim 1, wherein: the depth of the plurality of key bits (6) is different.

6. A profiled key lock as claimed in claim 4, wherein: the fixed ball assemblies and the movable ball assemblies are respectively provided with four groups, the four groups of fixed ball assemblies are arranged in the shell (1), the four groups of movable ball assemblies are arranged on the lock cylinder (12), and the four groups of second balls (17) are different in height and are respectively matched with the key teeth (6).

7. A profiled key lock as claimed in claim 1, wherein: and a limiting block (18) is arranged on the moving block (9).

8. A profiled key lock as claimed in claim 1, wherein: a sliding groove (19) is formed in the moving block (9), and a sliding block (20) matched with the sliding groove (19) is arranged on the shell (1).