CN113638651B

CN113638651B - Mechanical coded lock with double-safety structure

Info

Publication number: CN113638651B
Application number: CN202010392877.5A
Authority: CN
Inventors: 陈炳旭; 陈成; 王晓炜; 陈德明
Original assignee: Tianjin Zhonghesheng New Energy Technology Development Co ltd
Current assignee: Tianjin Zhonghesheng New Energy Technology Development Co ltd
Priority date: 2020-05-11
Filing date: 2020-05-11
Publication date: 2022-05-13
Anticipated expiration: 2040-05-11
Also published as: CN113638651A

Abstract

The invention provides a mechanical coded lock with a double-safety structure, belongs to the technical field of mechanical coded locks, and aims to solve the problems that the existing mechanical coded lock only has single safety, is easy to steal by others after a password is leaked, and has poor safety; the lock comprises a shell, a first lock cylinder, a second lock cylinder and a bolt; the first lock cylinder and the second lock cylinder are respectively and fixedly arranged on the shell; the lock tongue is movably arranged on the shell; the mechanical coded lock has a double-safety structure, adopts a mode of combining coded unlocking and key unlocking, has higher safety, can be unlocked only by keeping confidential documents under two unlocking conditions, is convenient to store public articles, has high cracking difficulty and has better use effect.

Description

Mechanical coded lock with double-safety structure

Technical Field

The invention relates to the technical field of mechanical coded locks, in particular to a mechanical coded lock with a double-safety structure.

Background

The mechanical coded lock is a large-key-value high-reliability full-mechanical coded lock without electronic devices; the existing mechanical coded lock only has a single lock core structure, and the password is easy to be stolen by others after being leaked; when public confidential articles are kept, people who know the password can unlock the lock, the anti-theft safety is poor, and the use experience is poor.

Disclosure of Invention

Aiming at the technical defects, the invention aims to provide the mechanical coded lock with the double-safety structure, the combination mode of coded unlocking and key unlocking is adopted, the safety is higher, confidential documents can be unlocked only by simultaneously having two unlocking conditions during storage, the storage of the confidential documents is convenient for storing public articles, the cracking difficulty is high, and the using effect is better.

In order to solve the technical problems, the invention adopts the following technical scheme:

a mechanical coded lock with a double-safety structure is characterized by comprising a shell, a first lock cylinder, a second lock cylinder and a lock tongue; the first lock cylinder and the second lock cylinder are respectively and fixedly arranged on the shell; the lock tongue is movably arranged on the shell; the first lock core comprises a driving part and a driven part; the driving part comprises a knob, a driving shaft and a first turntable; the driving shaft is rotatably arranged on the side wall of the shell, the knob is fixedly arranged at one end of the driving shaft, the first rotating disc is fixedly arranged at the other end of the driving shaft, the knob is positioned outside the shell, and the first rotating disc is positioned inside the shell; a first bulge is fixedly arranged on one side wall of the first rotating disc; the driven part comprises an adjusting button, a fixed shaft, a second rotary disc, a third rotary disc, a fixed disc and a cylinder; the fixed shaft is rotatably arranged on the shell, and the central line of the fixed shaft is collinear with the central line of the driving shaft; the cylinder is movably sleeved at one end of the fixed shaft, the adjusting button is fixedly arranged at the other end of the fixed shaft, and the fixed disc is fixedly arranged at the middle position of the fixed shaft; the second turntable and the third turntable are respectively sleeved on the cylinder in a rotating manner; a third bulge and a second bulge matched with the first bulge are respectively arranged on two side walls of the second turntable; a fourth bulge matched with the third bulge is fixedly arranged on one side wall of the third turntable; a semicircular groove is formed in the other side wall of the third turntable, and a semicircular bulge matched with the semicircular groove is fixedly arranged on the fixed disc; the first rotary table, the second rotary table and the third rotary table are all provided with clamping grooves; a sliding groove is formed in the inner side wall of the shell, and an L-shaped clamping plate matched with the clamping groove is arranged in the sliding groove in a sliding mode; one end of the L-shaped clamping plate is fixedly connected with the lock tongue; the L-shaped clamping plate is provided with a micro rack, and the second lock cylinder is provided with a gear matched with the micro rack.

Preferably, the second lock cylinder comprises a lock case and an inner core; the lock shell is fixedly arranged on the outer shell, and the inner core is rotatably arranged on the lock shell; the lock shell is provided with a plurality of round blind holes, and the inner core is provided with a plurality of round through holes matched with the round blind holes; a first cylinder is movably arranged in each of the round blind holes; a second cylinder is movably arranged in the circular through hole; the gear is fixedly arranged at one end of the inner core.

Preferably, a compression spring is fixedly arranged at the bottom of the sliding groove, and one end of the compression spring is fixedly connected with the L-shaped clamping plate.

Preferably, an extension spring is fixedly arranged in the cylinder, and one end of the extension spring is fixedly connected with the fixed shaft.

Preferably, two dials are fixedly arranged on the outer side wall of the shell, wherein the center line of one dial is collinear with the center line of the driving shaft, and the center line of the other dial is collinear with the center line of the fixed shaft.

Preferably, a fastening screw is movably arranged on the adjusting button.

Preferably, the diameters of the first rotating disc, the second rotating disc and the third rotating disc are the same; the diameter of the fixed disc is smaller than that of the third rotary disc.

The invention has the beneficial effects that: the mechanical coded lock has a double-safety structure, adopts a mode of combining coded unlocking and key unlocking, has higher safety, can be unlocked only by keeping confidential documents under two unlocking conditions, is convenient to store public articles, has high cracking difficulty and has better use effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic cross-sectional view of a mechanical combination lock with a double-safety structure according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is a partial enlarged view of portion B of FIG. 1;

fig. 4 is a perspective structural view of a first lock cylinder of a mechanical combination lock with a double-safety structure according to an embodiment of the present invention.

Description of reference numerals:

adjusting button 1, fastening screw 2, dial 3, shell 4, L type cardboard 5, micro rack 6, spring bolt 7, gear 8, knob 9, fixed axle 10, fixed disk 11, semicircle arch 12, draw-in groove 13, fourth arch 14, second arch 15, second carousel 16, first carousel 17, driving shaft 18, drum 19, first arch 20, third arch 21, third carousel 22, spout 23, inner core 24, first cylinder 25, lock shell 26, second cylinder 27.

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.

It should be noted that in the description of the present invention, the terms "in", "upper", "lower", "lateral", "inner", etc. indicate directions or positional relationships based on those shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1 to 4, a mechanical combination lock with a double safety structure comprises a housing 4, a first lock cylinder, a second lock cylinder and a bolt 7; the second lock cylinder is provided with a matched key; the housing 4 is internally provided with an accommodating cavity; the first lock cylinder and the second lock cylinder are respectively and fixedly arranged on the shell 4; the lock tongue 7 is movably arranged on the shell 4; the first lock core comprises a driving part and a driven part; the driving component comprises a knob 9, a driving shaft 18 and a first rotating disc 17; the driving shaft 18 is rotatably arranged on one side wall of the shell 4, the knob 9 is fixedly arranged at one end of the driving shaft 18, the first rotary disc 17 is fixedly arranged at the other end of the driving shaft 18, the knob 9 is positioned outside the shell 4, and the first rotary disc 17 is positioned inside the shell 4; a first bulge 20 is fixedly arranged on one side wall of the first rotary disc 17, and the first bulge 20 is positioned on one side of the first rotary disc 17 far away from the knob 9; the driven part comprises an adjusting button 1, a fixed shaft 10, a second rotary disc 16, a third rotary disc 22, a fixed disc 11 and a cylinder 19; the fixed shaft 10 is rotatably arranged on the shell 4, and the central line of the fixed shaft 10 is collinear with the central line of the driving shaft 18; the cylinder 19 is movably sleeved at one end of the fixed shaft 10, an extension spring is fixedly arranged in the cylinder 19, one end of the extension spring is fixedly connected with the fixed shaft 10, so that the cylinder 19 can slide left and right on the fixed shaft 10 and cannot rotate, and the extension spring can press the cylinder 19 towards the direction close to the fixed rod in a natural state; the adjusting button 1 is fixedly arranged at the other end of the fixed shaft 10, the adjusting button 1 is arranged outside the shell 4, the cylinder 19 is arranged inside the shell 4, and the fixed disc 11 is fixedly arranged at the middle position of the fixed shaft 10; the second turntable 16 and the third turntable 22 are respectively rotatably sleeved on the cylinder 19; the two side walls of the second rotary table 16 are respectively provided with a third bulge 21 and a second bulge 15 matched with the first bulge 20, when the first bulge 20 is contacted with the second bulge 15, the second rotary table 16 can be driven to rotate by rotating the first rotary table 17, and the second rotary table 16 can be driven to rotate in the opposite direction after the first rotary table 17 is rotated in the opposite direction for a certain angle; a fourth bulge 14 matched with the third bulge 21 is fixedly arranged on one side wall of the third turntable 22, so that the second turntable 16 can drive the third turntable 22 to rotate in the forward direction and the reverse direction; a semicircular groove is formed in the other side wall of the third rotary table 22, a semicircular protrusion 12 matched with the semicircular groove is fixedly arranged on the fixed disc, after the third rotary table 22 rotates for a certain angle, the semicircular protrusion 12 can be clamped into the semicircular groove, the semicircular protrusion 12 and the semicircular groove can be smoothly clamped by the extension spring, the third rotary table 22 continues to rotate after the clamping, and the semicircular protrusion 12 and the semicircular groove can be separated from each other; the first rotary disc 17, the second rotary disc 16 and the third rotary disc 22 are all provided with a clamping groove 13; a sliding groove 23 is formed in the inner side wall of the shell 4, and an L-shaped clamping plate 5 matched with the clamping groove 13 is arranged in the sliding groove 23 in a sliding mode; one end of the L-shaped clamping plate 5 is fixedly connected with the bolt 7, and when the clamping grooves 13 on the first rotary table 17, the second rotary table 16 and the third rotary table 22 are connected into a line at the bottom position of the L-shaped clamping plate 5, the L-shaped clamping plate 5 can slide into the clamping groove 13 to drive the bolt 7 to move downwards and open the lock; the L-shaped clamping plate 5 is provided with a micro rack 6, the second lock cylinder is provided with a gear 8 matched with the micro rack 6, when the first rotary plate 17, the second rotary plate 16 and the third rotary plate 22 rotate to unlocking positions, the second lock cylinder is opened through a key, the gear 8 rotates to drive the micro rack 6 to slide, the bolt 7 can slide to unlock, and the lock can be unlocked only when the first lock cylinder and the second lock cylinder are unlocked simultaneously.

Further, the second lock cylinder comprises a lock shell 26 and an inner core 24, and the structure principle is the same as that of the existing padlock lock cylinder; the lock shell 26 is fixedly arranged on the outer shell 4, and the inner core 24 is rotatably arranged on the lock shell 26; the lock shell 26 is provided with a plurality of round blind holes, and the inner core 24 is provided with a plurality of round through holes matched with the round blind holes; a first cylinder 25 is movably arranged in each of the round blind holes; a second cylinder 27 is movably arranged in the circular through hole; the gear 8 is fixedly arranged at one end of the inner core 24, and the inner core 24 can be rotated by the key to drive the gear 8 to rotate only by pushing the first cylinder 25 and the second cylinder 27 to proper positions after the key matched with the second lock cylinder is inserted into the inner core 24.

Further, 23 fixed compression spring that is equipped with in bottom of spout, compression spring's one end and 5 fixed connection of L type cardboard, compression spring pushes up L type cardboard 5 upwards under the natural state, makes 7 depths of spring bolt shell 4, is locking state this moment.

Furthermore, two dials 3 are fixedly arranged on the outer side wall of the shell 4, wherein the center line of one dial 3 is collinear with the center line of the driving shaft 18, the dial 3 is arranged between the shell 4 and the knob 9, the center line of the other dial 3 is collinear with the center line of the fixed shaft 10, and the dial 3 is arranged between the adjusting knob 1 and the shell 4; the knob 9, the adjusting knob 1 and the dial 3 can be provided with angles and numbers, and the rotating angles of the knob 9 and the adjusting knob 1 can be checked through the dial 3.

Furthermore, a fastening screw 2 is movably arranged on the adjusting button 1, and the adjusting button 1 can be fixed through the fastening screw 2.

Further, the diameters of the first rotary table 17, the second rotary table 16 and the third rotary table 22 are the same; the diameter of the fixed disc 11 is smaller than that of the third rotary disc 22, so that the L-shaped clamping plates 5 can be smoothly clamped into the first rotary disc 17, the second rotary disc 16 and the third rotary disc 22.

When the lock is used, the semicircular bulge 12 of the fixed disc in the initial state is at the highest position of the vertical surface, the semicircular groove of the third rotary disc 22 is clamped with the semicircular bulge 12 of the fixed disc, the clamping groove 13 on the third rotary disc 22 is at the highest position of the vertical surface, the clamping grooves 13 on the first rotary disc 17 and the second rotary disc 16 are also at the highest positions, at the moment, the first bulge 20 and the second bulge 15 are not at the same horizontal height, the third bulge 21 and the fourth bulge 14 are not at the same height, and the condition that the knob 9 is rotated forwards and backwards to complete the opening state of the first lock cylinder is ensured, meanwhile, because the position of the first protrusion 20 relative to the clamping groove 13 on the first rotary table 17, the positions of the second protrusion 15 and the third protrusion 21 relative to the clamping groove 13 on the second rotary table 16, and the position of the fourth protrusion 14 relative to the clamping groove 13 on the fourth rotary table are fixed, the unlocking of the first lock cylinder can be completed only by rotating the third rotary table 22 to a set position and executing a fixed rotating mode; when the first lock core in the initial state is opened, the knob 9 is rotated in the single direction, the first rotary disc 17 drives the second rotary disc 16 and the third rotary disc 22 to rotate together, when the semicircular protrusions 12 are clamped in the semicircular grooves, the rotation can be stopped below the semicircular grooves, an unlocking person can know that the third rotary disc 22 reaches a preset position at the moment, the knob 9 is rotated in the positive and negative directions according to the fixing steps, the first rotary disc 17 and the second rotary disc 16 are rotated to the preset position, the three clamping grooves 13 can be rotated to the highest point position, the key inserted into the second lock core opens the second lock core at the moment, the gear 8 on the inner core 24 drives the micro rack 6 on the L-shaped clamping plate 5 to move, the L-shaped clamping plate 5 moves downwards to enter the clamping grooves 13, and the lock tongue 7 retracts into the coded lock, so that unlocking is completed.

When the password needs to be set, a user loosens the fastening screw 2, rotates the adjusting button 1 by a certain angle, so that the angle of the fixed disc changes, the rotating angle can be any angle between 0 and 360 degrees, when the semicircular groove on the third rotary disc 22 is clamped with the semicircular bulge 12, the clamping groove 13 of the third rotary disc 22 is not at a preset position, the first rotary disc 17 and the second rotary disc 16 can not be unlocked by rotating in the fixing step, and the first lock cylinder is prevented from being cracked after other people know the rule; a user needs to rotate the knob 9 to drive the third rotary table 22 to continue to rotate for a certain angle, the rotating angle is a set rotating angle, the third rotary table 22 can be rotated to a set position by rotating the set angle in a forward direction or a reverse direction according to the setting of the user, then the second rotary table 16 and the first rotary table 17 are rotated according to the fixing step, the clamping groove 13 is enabled to be opposite to the L-shaped clamping plate 5, and the unlocking of the first lock cylinder is completed; the structure of high accuracy can make effective angle of setting contain the decimal, and the operation number of times is more complicated in single operation of cracking, prevents that other people from trying to crack by angle, can increase several the same carousel more on drum 19 simultaneously and come the further difficulty of cracking that improves.

The mechanical coded lock has a double-safety structure, adopts a mode of combining coded unlocking and key unlocking, has higher safety, can be unlocked only by keeping confidential documents under two unlocking conditions, is convenient to store public articles, has high cracking difficulty and has better use effect.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A mechanical coded lock with a double-safety structure is characterized by comprising a shell, a first lock cylinder, a second lock cylinder and a lock tongue; the first lock cylinder and the second lock cylinder are respectively and fixedly arranged on the shell; the lock tongue is movably arranged on the shell;

the first lock core comprises a driving part and a driven part; the driving part comprises a knob, a driving shaft and a first turntable; the driving shaft is rotatably arranged on the side wall of the shell, the knob is fixedly arranged at one end of the driving shaft, the first rotating disc is fixedly arranged at the other end of the driving shaft, the knob is positioned outside the shell, and the first rotating disc is positioned inside the shell; a first bulge is fixedly arranged on one side wall of the first rotating disc; the driven part comprises an adjusting button, a fixed shaft, a second rotary disc, a third rotary disc, a fixed disc and a cylinder; the fixed shaft is rotatably arranged on the shell, and the central line of the fixed shaft is collinear with the central line of the driving shaft; the cylinder is movably sleeved at one end of the fixed shaft, the adjusting button is fixedly arranged at the other end of the fixed shaft, and the fixed disc is fixedly arranged at the middle position of the fixed shaft; the second turntable and the third turntable are respectively sleeved on the cylinder in a rotating manner; a third bulge and a second bulge matched with the first bulge are respectively arranged on two side walls of the second turntable; a fourth bulge matched with the third bulge is fixedly arranged on one side wall of the third turntable; a semicircular groove is formed in the other side wall of the third turntable, and a semicircular bulge matched with the semicircular groove is fixedly arranged on the fixed disc; the first rotary table, the second rotary table and the third rotary table are all provided with clamping grooves;

a sliding groove is formed in the inner side wall of the shell, and an L-shaped clamping plate matched with the clamping groove is arranged in the sliding groove in a sliding mode; one end of the L-shaped clamping plate is fixedly connected with the lock tongue; the L-shaped clamping plate is provided with a micro rack, the second lock cylinder is provided with a gear matched with the micro rack, and the second lock cylinder is opened by using a key to enable the gear to rotate to drive the micro rack to slide.

2. A mechanical combination lock with a dual fail-safe arrangement as claimed in claim 1, wherein the second cylinder comprises a lock housing and an inner core; the lock shell is fixedly arranged on the outer shell, and the inner core is rotatably arranged on the lock shell; the lock shell is provided with a plurality of round blind holes, and the inner core is provided with a plurality of round through holes matched with the round blind holes; a first cylinder is movably arranged in each of the round blind holes; a second cylinder is movably arranged in the circular through hole; the gear is fixedly arranged at one end of the inner core.

3. The mechanical combination lock with the double-safety structure as claimed in claim 1, wherein a compression spring is fixedly arranged at the bottom of the sliding groove, and one end of the compression spring is fixedly connected with the L-shaped clamping plate.

4. The mechanical combination lock with the double safety structure as claimed in claim 1, wherein an extension spring is fixedly disposed in the cylinder, and one end of the extension spring is fixedly connected with the fixed shaft.

5. A mechanical combination lock with a double safety feature, as claimed in claim 1, wherein two dials are fixed to the outer side wall of the housing, wherein the center line of one of the dials is collinear with the center line of the driving shaft and the center line of the other dial is collinear with the center line of the fixed shaft.

6. The mechanical combination lock with the double safety structure as claimed in claim 5, wherein the adjusting knob is movably provided with a fastening screw.

7. The mechanical combination lock with the double safety feature of claim 1, wherein the first, second and third discs are the same diameter; the diameter of the fixed disc is smaller than that of the third rotary disc.