CN110318585B

CN110318585B - High-strength anti-theft coded lock

Info

Publication number: CN110318585B
Application number: CN201910408884.7A
Authority: CN
Inventors: 韩文杰; 王壤
Original assignee: Ningbo Wangtong Locks Co Ltd
Current assignee: Ningbo Wangtong Locks Co Ltd
Priority date: 2019-05-16
Filing date: 2019-05-16
Publication date: 2020-09-15
Anticipated expiration: 2039-05-16
Also published as: CN110318585A

Abstract

The invention discloses a high-strength anti-theft coded lock, which comprises a coded lock, a key lock and a knob, wherein the key lock comprises a lock core and a lock tongue plate which are arranged on the knob and used for locking or unlocking the rotary state of the knob, the coded lock comprises a coded wheel and a tail-end coded wheel, a groove is formed between adjacent numbers of the coded wheel, a locking mechanism used for limiting the coded wheel to rotate is further arranged in a shell, the locking mechanism comprises a first inclined block, a limiting block and a supporting plate, one end of the first inclined block is abutted against the groove, the inclined plane of the other end of the first inclined block is relatively provided with a second inclined block, and a plurality of first sliding blocks capable of moving relative to the second inclined block in the vertical direction are arranged in the second inclined block; the invention has simple structure, and the lock can not be unlocked by unknown outsiders even if knowing the password through the ingenious locking mechanism.

Description

High-strength anti-theft coded lock

Technical Field

The invention relates to the technical field of mechanical coded locks, in particular to a high-strength anti-theft coded lock.

Background

The mechanical coded lock is a reliable full-mechanical coded lock with large key amount and without electronic devices; the mechanical coded lock usually adopted is a dial type mechanical coded lock; the push-button mechanical coded lock has the characteristics of difficulty in cracking, high safety and the like, is small in size and light in weight, is suitable for being used in very important places such as vault doors, firearm cabinets and safety boxes, is single in digital combination, is easy to crack when being observed by other locks, and is poor in safety.

Disclosure of Invention

The invention mainly aims to provide a high-strength anti-theft coded lock for solving the defects in the prior art, and the high-strength anti-theft coded lock can effectively solve the problems that the currently used mechanical coded lock is easy to crack and poor in safety and the like.

In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: a high-strength anti-theft coded lock comprises a coded lock, a key lock and a knob, wherein the key lock comprises a lock core and a lock tongue plate which are arranged on the knob and used for locking or unlocking the rotary state of the knob, the coded lock comprises a coded wheel and a tail end coded wheel, a groove is arranged between adjacent numbers of the coded wheel, the shell is also internally provided with a locking mechanism used for limiting the code wheel to rotate, the locking mechanism comprises a first inclined block, a limiting block and a supporting plate, one end of the first inclined block is abutted against the groove, the inclined plane at the other end is oppositely provided with a second inclined block, a plurality of first sliding blocks which can move relative to the vertical direction of the second inclined block are arranged in the second inclined block, the tail end password wheel can rotate to force the first inclined block to extrude the second inclined block to move, when the first sliding block and the limiting block are in the same horizontal position, the password wheel can rotate freely.

As an improvement, the coded lock further comprises a locking rod, a carrier is arranged on the locking rod, and the coded wheel and the carrier can be meshed in a separable mode.

As an improvement, one end, close to the groove, of the first inclined block is provided with double inclined planes symmetrically distributed along the center, and the inclined planes are attached to the groove.

As an improvement, a supporting plate used for fixing the second inclined block is further arranged in the shell, a plurality of second sliding blocks are arranged in the supporting plate, and a second spring used for enabling the second sliding blocks to return to the initial position is arranged at one end, far away from the second inclined block, of each second sliding block.

As an improvement, the number of the first sliding blocks and the second sliding blocks is consistent with that of the code wheels.

As an improvement, one end of the first inclined block, which is far away from the groove, is provided with a first spring, and the first spring can force the first inclined block to move towards one end of the groove.

As an improvement, handles which are convenient for users to rotate are symmetrically arranged on the knob.

As an improvement, the key lock opening height is higher than the housing height.

Compared with the prior art, the invention has the advantages that:

1. according to the invention, through a simple locking mechanism, the password of the dial can be only dialed from the password wheel at the tail end, and other password wheels can be only dialed when the password wheel is dialed to the middle of the number, so that even an unknown person knows the password, the dial can not be unlocked.

2. When a user needs to modify the password, the user only needs to separate the password wheel from the carrier wheel frame, and the carrier wheel frame cannot be driven to rotate by the rotation of the password wheel.

3. The design of the double inclined planes of the first inclined block enables a user to move the first inclined block away from the groove no matter which direction the user rotates.

4. The supporting plate is provided with the plurality of second sliding blocks, when the second sliding blocks and the limiting blocks are located at the same horizontal position, other password wheels can move, and the confidentiality of the password wheels is greatly improved.

5. The number of the second sliding block is consistent with that of the password wheels, so that all the password wheels except the tail password wheel can not rotate under the locking state of the locking mechanism.

6. The first spring can effectively fix the position of the metabolic block, and plays a role in recovery.

7. The design of the knob of the coded lock accords with human engineering and is comfortable to hold. 8. The control key is designed to be connected naturally in height, and when the key is used for emergency opening, the damping feeling is not very large.

Drawings

FIG. 1 is a front perspective view of the present invention;

FIG. 2 is a top perspective view of the invention;

FIG. 3 is a perspective view of the present invention with the housing omitted;

FIG. 4 is a top view of the present invention;

FIG. 5 is an enlarged partial schematic view of A in FIG. 4;

FIG. 6 is a front view of the first cam block of FIG. 5 in abutment with the combination wheel;

FIG. 7 is a schematic cross-sectional view B-B of FIG. 6;

FIG. 8 is a schematic cross-sectional view of C-C of FIG. 6;

FIG. 9 is a schematic cross-sectional view of FIG. 5;

fig. 10 is a schematic structural diagram of unlocking after the tail-end password wheel is dialed.

The names of the parts corresponding to the respective reference numerals are: the key lock comprises a shell 1, a lock tongue plate 11, a coded lock 2, a coded wheel 21, a tail coded wheel 22, a groove 23, a key lock hole 3, a knob 4, a limiting block 5, a poking rod 51, an elastic pawl 52, a locking rod 6, a carrier 61, a first inclined block 7, a second inclined block 71, a first sliding block 72, a limiting block 73, a supporting plate 8, a second sliding block 81, a first spring 91 and a second spring 92.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

The invention comprises a coded lock 2, a key lock 3 and a knob 4, wherein the key lock 3 comprises a lock core and a lock tongue plate 11 which are arranged on the knob 4 and used for locking or unlocking the rotary state of the knob 4, the coded lock 2 comprises a coded wheel 21 and a tail-end coded wheel 22, a groove 23 is arranged between adjacent numbers of the coded wheel 21, a locking mechanism used for limiting the rotation of the coded wheel 21 is further arranged in a shell 1, the locking mechanism comprises a first inclined block 7, a limiting block 73 and a supporting plate 8, one end of the first inclined block 7 is abutted against the groove 23, the inclined surface of the other end of the first inclined block 7 is relatively provided with a second inclined block 71, a plurality of first sliding blocks 72 capable of moving relative to the vertical direction of the second inclined block are arranged in the second inclined block 71, the tail-end coded wheel 22 can rotate to force the first inclined block 7 to extrude the second inclined block 71 to move, when the first sliding blocks 72 and the limiting block 73 are in the same, the code wheel 21 can rotate freely.

Specifically, the coded lock 2 further comprises a locking rod 6, a carrier 61 is arranged on the locking rod 6, and the coded wheel 21 and the carrier 61 can be meshed in a separable mode.

Specifically, the first inclined block 7 is provided with double inclined planes symmetrically distributed along the center near one end of the groove 23, and the inclined planes are attached to the groove 23.

Specifically, a supporting plate 8 for fixing the second inclined block 71 is further arranged in the housing 1, a plurality of second sliding blocks 81 are arranged in the supporting plate 8, and a second spring 92 for enabling the second sliding blocks to return to the initial position is arranged at one end, far away from the second inclined block 71, of the second sliding blocks 81.

Specifically, the number of the first sliding blocks 72 and the second sliding blocks 81 is the same as the number of the combination wheels 21.

Specifically, a first spring 91 is disposed at an end of the first inclined block 7 away from the groove 23, and the first spring 91 can force the first inclined block 7 to move toward the end of the groove 23.

Specifically, handles convenient for a user to rotate are symmetrically arranged on the knob 4.

Specifically, the opening height of the key lock 3 is higher than the height of the shell 1.

The present invention is a typical dial combination lock that a user can unlock by dialing the combination wheel 21 and then rotating the strike plate 11 via the knob 4, or by directly unlocking the key lock 3 with a key such that the strike plate 11 rotates.

The invention is also provided with a special locking mechanism for preventing a person with a heart from entering the room when the person gets the password; the locking mechanism comprises a first inclined block 7, a limiting block 73 and a supporting plate 8, the first inclined block 7 is abutted to the groove 23 of the tail end password wheel 22, the limiting block 73 is abutted to the groove 23 of the password wheel 21, and the limiting block 73 is limited by the first inclined block 71 of the supporting plate, so that the limiting block 73 cannot move, the password wheel 21 cannot rotate, and only the tail end password wheel 22 can rotate at the moment.

When a user needs to rotate other password wheels 21, the end password wheel 22 needs to be moved to the position shown in fig. 10, that is, the groove of the end password wheel 22 is not abutted to the first inclined block 7, and the current situation is maintained, at this time, the first inclined block 71 moves leftward due to the rotation of the end password wheel 22, and at the same time, the second inclined block is forced to move upward to the position shown in fig. 10, the first sliding block 72 located in the first inclined block 71 also slides upward, at this time, the limiting block 73, the first sliding block 72 and the second sliding block 81 are located on the same horizontal plane, at this time, the password wheel 21 can be rotated, and the limiting block 73 can force the first sliding block 72 and the second sliding block 81 to move leftward.

When the other code wheels 21 rotate to the correct code, the tail secret wheel 22 can be rotated to the correct position, and at this time, under the spring force of the first spring 91 and the second spring 92, the code wheels 21 and the limiting blocks can be restored to the position shown in fig. 9.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a high strength theftproof trick lock, includes casing (1), casing (1) includes trick lock (2), key lock (3) and knob (4), key lock (3) are including locating on knob (4) and be used for the locking or unblock knob (4) rotating-state's lock core and lock tongue board (11), its characterized in that: the coded lock (2) comprises a coded wheel (21) and a tail coded wheel (22), a groove (23) is arranged between adjacent numbers of the code wheel (21), a locking mechanism for limiting the code wheel (21) to rotate is also arranged in the shell (1), the locking mechanism comprises a first inclined block (7), a limiting block (73) and a supporting plate (8), one end of the first inclined block (7) is abutted against the groove (23), the inclined surface of the other end of the first inclined block is oppositely provided with a second inclined block (71), a plurality of first sliding blocks (72) which can move relative to the vertical direction are arranged in the second inclined block (71), the tail code wheel (22) can force the first inclined block (7) to press the second inclined block (71) to move through rotation, when the first sliding block (72) and the limiting block (73) are in the same horizontal position, the code wheel (21) can rotate freely.

2. A high strength anti-theft combination lock according to claim 1, wherein: the coded lock (2) further comprises a locking rod (6), a carrier (61) is arranged on the locking rod (6), and the coded wheel (21) is detachably meshed with the carrier (61).

3. A high strength anti-theft combination lock according to claim 1, wherein: the first oblique block (7) is close to one end of the groove (23) and is provided with double inclined planes which are symmetrically distributed along the center, and the inclined planes are attached to the groove (23).

4. A high strength anti-theft combination lock according to claim 1, wherein: still be equipped with in casing (1) and be used for fixing backup pad (8) of second sloping block (71), be equipped with a plurality of second slider (81) in backup pad (8), second slider (81) are kept away from second sloping block (71) one end is equipped with and makes its second spring (92) that reply initial position.

5. A high strength anti-theft combination lock according to claim 4, wherein: the number of the first sliding blocks (72) and the second sliding blocks (81) is consistent with that of the code wheels (21).

6. A high strength anti-theft combination lock according to claim 1, wherein: a first spring (91) is arranged at one end, far away from the groove (23), of the first inclined block (7), and the first spring (91) can force the first inclined block (7) to move towards one end of the groove (23).

7. A high strength anti-theft combination lock according to claim 1, wherein: handles convenient for a user to rotate are symmetrically arranged on the knob (4).

8. A high strength anti-theft combination lock according to claim 1, wherein: the opening height of the key lock (3) is higher than the height of the shell (1).