CN117449703A

CN117449703A - Mechanical coded lock

Info

Publication number: CN117449703A
Application number: CN202311637427.8A
Authority: CN
Inventors: 周国权; 刘华江; 田城宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-11-30
Filing date: 2023-11-30
Publication date: 2024-01-26

Abstract

The invention discloses a mechanical coded lock, which comprises a lock shell, an unlocking handle, a rotating shaft, a driven gear, a sliding block, a limiting piece, a resetting piece, a dialing limiting assembly and a lock cylinder assembly, wherein the unlocking handle is arranged on the lock shell; the rotating shaft is rotatably arranged on the lock shell, the rotating shaft is fixedly connected with the lock core assembly, the rotating shaft is provided with a containing cavity, and the outer wall of the rotating shaft is provided with a groove communicated with the containing cavity; the sliding block is slidably arranged in the accommodating cavity, one end of the sliding block is provided with a rack, the outer wall of the sliding block is provided with a protruding step, and the protruding step is positioned in the groove; the driven gear and the unlocking handle are respectively connected with the rotating shaft in a rotating way, the unlocking handle is provided with a sector gear meshed with the driven gear, the driven gear is meshed with the rack, and the unlocking handle is exposed out of the lock shell. The mechanical coded lock has the advantages of simple and novel structure, simple and convenient operation process, multiple coded bits, high safety performance, no need of unlocking by a user by using a key, convenience for life of the user, pure mechanical structure, good working stability and low manufacturing cost.

Description

Mechanical coded lock

Technical Field

The invention relates to the technical field of locks, in particular to a mechanical coded lock.

Background

In daily life, people can use keys when opening the doors, and the keys are forgotten or lost due to various reasons, so that people can not open the doors after coming home, and only locksmiths can be asked to unlock the doors, thus not only delaying time, but also wasting the time.

Although the electronic coded lock and the electronic fingerprint lock solve the problem, the electronic coded lock and the electronic fingerprint lock have high manufacturing cost and are not suitable for all families with different economic conditions.

Disclosure of Invention

The technical problems solved by the invention are as follows: a low cost mechanical combination lock is provided.

In order to solve the technical problems, the invention adopts the following technical scheme: a mechanical coded lock comprises a lock shell, an unlocking handle, a rotating shaft, a driven gear, a sliding block, a limiting piece, a resetting piece, a dial limiting assembly and a lock cylinder assembly;

the rotary shaft is rotatably arranged on the lock shell and fixedly connected with the lock cylinder assembly, the rotary shaft is provided with a containing cavity, and the outer wall of the rotary shaft is provided with a groove communicated with the containing cavity;

the sliding block is slidably arranged in the accommodating cavity, one end of the sliding block is provided with a rack, the outer wall of the sliding block is provided with a protruding step, and the protruding step is positioned in the groove;

the driven gear and the unlocking handle are respectively connected with the rotating shaft in a rotating way, the unlocking handle is provided with a sector gear meshed with the driven gear, the driven gear is meshed with the rack, and the unlocking handle is exposed out of the lock shell;

the limiting piece is rotatably arranged in the lock shell, the limiting piece is provided with a through hole for the rotating shaft to pass through, the edge of the through hole is provided with a sliding boss which stretches into the groove and is used for pushing the protruding step, and the limiting piece is also provided with a plurality of limiting clamping blocks;

the reset piece is used for driving the sliding boss to extend into the groove;

the number of the dialing limiting assemblies is multiple, the dialing limiting assemblies are in one-to-one correspondence with the limiting clamping blocks, the dialing limiting assemblies comprise limiting wheels and dialing wheels, the dialing wheels are rotatably arranged on the lock shell, the dialing wheels are in transmission connection with the limiting wheels, and the limiting wheels are provided with slots for the limiting clamping blocks to enter.

The invention has the beneficial effects that: the mechanical coded lock is simple and novel in structure, simple and convenient in operation process, provided with a plurality of groups of dial limit components, high in coded digits and safety performance, and can provide convenience for life of a user without unlocking by using a key.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an exploded view of a mechanical combination lock according to a first embodiment of the present invention;

fig. 2 is a cross-sectional view of a mechanical combination lock according to a first embodiment of the present invention in an unlocked state;

fig. 3 is a schematic structural diagram of a limiting plate in a mechanical coded lock according to a first embodiment of the present invention;

fig. 4 is a second cross-sectional view of the mechanical combination lock according to the first embodiment of the present invention in an unlocked state;

FIG. 5 is a cross-sectional view of a mechanical combination lock according to a first embodiment of the invention in a locked state;

fig. 6 is a schematic structural diagram of a dial wheel in a mechanical coded lock according to a first embodiment of the present invention;

fig. 7 is a schematic structural view of a knob in a mechanical coded lock according to another structure of the first embodiment of the present invention.

Reference numerals illustrate:

1. a housing;

2. a driven gear;

3. a sliding block; 3-1, protruding steps; 3-2, a first guide surface;

4. a rotating shaft; 4-1, grooves;

5. an unlocking handle;

6. a knob;

7. a dial wheel;

8. a limiting wheel; 8-1, a groove position;

9. a limiting piece; 9-1, sliding boss; 9-2, limiting the clamping blocks;

10. a reset member;

11. a bottom plate;

12. a plug assembly.

Detailed Description

The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that, in the embodiment of the present invention, directional indications such as up, down, left, right, front, and rear … … are referred to, and the directional indication is merely used to explain the relative positional relationship, movement conditions, and the like between the components in a specific posture such as that shown in the drawings, and if the specific posture is changed, the directional indication is changed accordingly.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.

In addition, if the meaning of "and/or" is presented throughout this document to include three parallel schemes, taking "and/or" as an example, including a scheme, or a scheme that is satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

Example 1

Referring to fig. 1 to 6, a first embodiment of the present invention is as follows: as shown in fig. 1 and 2, a mechanical coded lock comprises a lock shell, an unlocking handle 5, a rotating shaft 4, a driven gear 2, a sliding block 3, a limiting piece 9, a resetting piece 10, a dialing limiting assembly and a lock cylinder assembly 12;

the rotary shaft 4 is rotatably arranged on the lock shell, the rotary shaft 4 is fixedly connected with the lock cylinder assembly 12, the rotary shaft 4 is provided with a containing cavity, the outer wall of the rotary shaft 4 is provided with a groove 4-1 communicated with the containing cavity, and the central shaft of the rotary shaft 4 is arranged along the X-axis direction;

the sliding block 3 is slidably arranged in the accommodating cavity along the X-axis direction, one end of the sliding block 3 is provided with a rack, the outer wall of the sliding block 3 is provided with a protruding step 3-1, and the protruding step 3-1 is positioned in the groove 4-1;

the driven gear 2 and the unlocking handle 5 are respectively connected with the rotating shaft 4 in a rotating way, a central shaft of the driven gear 2 and a central shaft of the unlocking handle 5 are arranged along the Y-axis direction, a sector gear meshed with the driven gear 2 is arranged on the unlocking handle 5, the driven gear 2 is meshed with the rack, and the unlocking handle 5 is exposed out of the lock shell;

the limiting piece 9 is rotatably arranged in the lock shell, a central shaft of the limiting piece 9 is arranged along the X-axis direction, as shown in fig. 3, the limiting piece 9 is provided with a through hole for the rotating shaft 4 to pass through, the edge of the through hole is provided with a sliding boss 9-1 which stretches into the groove 4-1 and is used for pushing the protruding step 3-1, and the limiting piece 9 is also provided with a plurality of limiting clamping blocks 9-2;

the resetting piece 10 connects the limiting piece 9 and the lock shell to drive the sliding boss 9-1 to extend into the groove 4-1, namely the resetting piece 10 is used for driving the limiting piece 9 to rotate and reset; it should be noted that, in some embodiments, the reset element 10 may be indirectly connected to the lock case through other structures in the lock case;

the number of the dialing limiting assemblies is multiple and the dialing limiting assemblies are arranged in one-to-one correspondence with the limiting clamping blocks 9-2, the dialing limiting assemblies comprise limiting wheels 8 and dialing wheels 7, the dialing wheels 7 are rotatably arranged on the lock shell, the dialing wheels 7 are in transmission connection with the limiting wheels 8, and the limiting wheels 8 are provided with groove positions 8-1 for the limiting clamping blocks 9-2 to enter; preferably, the dial spacing assembly is located in the lock case, so that the dial spacing assembly is more fully protected, the working stability of the mechanical coded lock is improved, and the service life of the mechanical coded lock is prolonged.

In this embodiment, the protruding step 3-1 has a first guiding surface 3-2 for contacting the sliding boss 9-1, specifically, the protruding step 3-1 has a low position and a high position, the first guiding surface 3-2 connects the low position and the high position, when the sliding boss 9-1 corresponds to the low position, the sliding boss 9-1 protrudes into the groove 4-1 and is limited by the groove 4-1, so that the limiting piece 9 cannot rotate, when the sliding block 3 slides, the sliding boss 9-1 exits the groove 4-1 under the guiding of the first guiding surface 3-2, and at the same time, the limiting piece 9 slides, the sliding boss 9-1 corresponds to the high position, thereby preventing the sliding boss 9-1 from protruding into the groove 4-1 again under the action of the resetting piece 10; the first guiding surface 3-2 is an inclined surface or an arc surface. In some embodiments, the sliding boss 9-1 may have a second guide surface for contacting the protruding step 3-1, and the first guide surface 3-2 may be provided.

In this embodiment, the mechanical coded lock further includes a knob 6 rotatably disposed on the lock housing, the knob 6 is exposed to the lock housing, the number of the knob 6 is plural, the knob 6 is disposed in one-to-one correspondence with the dial limiting assembly, the knob 6 is in transmission connection with the dial wheel 7, and the user rotates the dial wheel 7 through the knob 6. In practical products, it is also possible that the mechanical combination lock does not have the knob 6, in which case the user directly operates the dial 7 to rotate, for example, the dial 7 is provided with a partial area exposed from the peripheral side of the lock case, etc. In addition, the dial wheel 7 is omitted, the knob 6 may be directly connected with the limit wheel 8 in a transmission manner, and at this time, a plurality of marks arranged in a circle may be directly arranged on the knob 6 for user operation, as shown in fig. 7, and at this time, the dial wheel may be regarded as an integral structure formed by integrally processing the knob 6 and the dial wheel 7.

In detail, the knob 6 is provided with a first transmission gear, and the dial wheel 7 is provided with a second transmission gear in transmission connection with the first transmission gear.

As shown in fig. 6, the dial wheel 7 is provided with a plurality of marks in a circle, and the lock shell is provided with a window for exposing the marks, wherein the marks include, but are not limited to, arabic numerals, roman numerals, letters and the like. The user can observe whether the corresponding spacing wheel 8 is rotated into place via the fenestration, which is optionally provided on the side of the lock housing remote from the plug assembly 12.

In this embodiment, the dial wheel 7 and the limit wheel 8 are two independent structural components, and in a specific product, the dial wheel 7 and the limit wheel 8 may also be an integral structure formed by integral processing.

In order to ensure that the sliding block 3 can stably drive the rotating shaft 4 to rotate, the sliding block 3 is provided with a guide block, the rotating shaft 4 is provided with a guide groove matched with the guide block, and the length direction of the guide groove is along the X-axis direction.

In detail, the lock case includes a housing 1 and a bottom plate 11 connected to each other, the lock cylinder assembly 12 is located at an outer side of the bottom plate 11, the knob 6 is rotatably disposed on the housing 1, and the unlocking handle 5 is exposed at a side of the housing 1 away from the bottom plate 11.

In this embodiment, the restoring member 10 is a torsion spring, and in other embodiments, the restoring member 10 may be a spring plate or other elastic restoring structural member.

The structural working principle of the mechanical coded lock of this embodiment is briefly described as follows:

when a user rotates the knob 6, the dial wheel 7 drives the limit wheel 8 to rotate, the user watches the mark on the dial wheel 7 through the window to determine whether the limit wheel 8 rotates in place, after the limit wheel 8 rotates in place, the groove position 8-1 on the limit wheel 8 corresponds to the limit clamping block 9-2 on the limit piece 9, at the moment, the user pulls up the unlocking handle 5, the sector gear on the unlocking handle 5 drives the driven gear 2 to rotate, the driven gear 2 pushes the sliding block 3 to move through the rack on the sliding block 3, the protruding step 3-1 on the sliding block 3 is enabled to be displaced from low to high, so that the sliding boss 9-1 on the limit piece 9 is pushed to withdraw from the groove 4-1 of the rotating shaft 4 and drive the limit piece 9 to rotate, the limit clamping block 9-2 on the limit piece 9 enters into the groove position 8-1 on the limit wheel 8, as shown in fig. 4, and the sliding boss 9-1 on the sliding block 3-1 is flush with the outer circle of the rotating shaft 4, and the sliding boss 9-1 on the rotating shaft 9 is also enabled to be changed from the groove 4-1 clamped in the rotating shaft 4 to be flush with the outer circle of the rotating shaft 4, and the rotating shaft 4 can rotate, and the lock core assembly is enabled to rotate, and the lock cylinder is enabled to rotate, and the lock assembly is enabled to rotate, and the lock is enabled to be rotated, and the rotation is turned to be in a rotary, and the rotary 4;

when the knob 6 is turned, the dial wheel 7 cannot rotate the limit wheel 8 to the correct position, the slot 8-1 on the limit wheel 8 cannot correspond to the limit clamping block 9-2 on the limit piece 9, the limit clamping block 9-2 on the limit piece 9 is blocked by the outer circle of the limit wheel 8 and cannot enter the slot 8-1 on the limit wheel 8, as shown in fig. 4, at the moment, the sliding block 3 is supported by the sliding boss 9-1 on the limit piece 9, the sliding block 3 cannot move, the sliding boss 9-1 of the limit piece 9 is always positioned in the groove 4-1 of the rotating shaft 4, the unlocking handle 5 cannot be pulled up, and meanwhile, the unlocking handle cannot rotate, so that unlocking cannot be performed.

The foregoing description is only of the optional embodiments of the present invention, and is not intended to limit the scope of the invention, and all the equivalent structural changes made by the description of the present invention and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the invention.

Claims

1. A mechanical coded lock, characterized by: the lock comprises a lock shell, an unlocking handle, a rotating shaft, a driven gear, a sliding block, a limiting piece, a resetting piece, a dialing limiting assembly and a lock cylinder assembly;

the reset piece is used for driving the sliding boss to extend into the groove;

2. The mechanical combination lock of claim 1, wherein: the protruding step has a first guide surface for contacting the sliding boss; and/or the sliding boss has a second guide surface for contacting the protruding step.

3. The mechanical combination lock of claim 1, wherein: the rotary lock is characterized by further comprising a knob which is rotatably arranged on the lock shell, the knob is exposed out of the lock shell, the number of the knob is multiple, the knob and the dial limiting assembly are arranged in one-to-one correspondence, and the knob is in transmission connection with the dial wheel.

4. A mechanical combination lock according to claim 3, wherein: the knob is provided with a first transmission gear, and the dial wheel is provided with a second transmission gear in transmission connection with the first transmission gear.

5. A mechanical combination lock according to claim 3, wherein: the dial spacing component is positioned in the lock shell.

6. A mechanical combination lock according to claim 3, wherein: the knob is provided with a plurality of marks which are arranged in a circle.

7. The mechanical combination lock of claim 1, wherein: the dial wheel is provided with a plurality of marks which are arranged in a circle, and the lock shell is provided with a window for exposing the marks.

8. The mechanical combination lock of claim 1, wherein: the sliding block is provided with a guide block, and the rotating shaft is provided with a guide groove matched with the guide block.

9. The mechanical combination lock of claim 1, wherein: the lock housing includes a housing body and a bottom plate connected to each other, and the cylinder assembly is located outside the bottom plate.

10. The mechanical combination lock of claim 1, wherein: the reset piece is a torsion spring or an elastic piece.