CN211776562U

CN211776562U - Multifunctional mechanical coded lock

Info

Publication number: CN211776562U
Application number: CN202020053392.9U
Authority: CN
Inventors: 王忠清; 汪剑楠; 刘振林; 叶笃疆
Original assignee: Wenzhou Huayili Hardware Decoration Co ltd
Current assignee: Duomima Technology (Zhejiang) Co.,Ltd.
Priority date: 2020-01-11
Filing date: 2020-01-11
Publication date: 2020-10-27
Anticipated expiration: 2030-01-11

Abstract

The utility model belongs to the technical field of the lock, refer in particular to a multi-functional mechanical trick lock. The method comprises the following steps: the shell comprises a bottom plate and an upper cover plate, wherein at least one group of poking wheel rings are arranged on the upper cover plate, rotating shafts of the poking wheel rings are positioned on the bottom plate, locking plates are sleeved on the rotating shafts, and unlocking notches are formed in outer rings of the locking plates; the lock bar comprises a lock bar main body positioned in the middle of the shell and a triggering part formed by extending the lock bar main body to two sides, the triggering part is provided with a bulge capable of extending into the unlocking notch, and the shell is also provided with a first spring which enables the lock bar to have a tendency of popping upwards; the spring bolt, the spring bolt rotates and sets up on the casing to be connected with the second spring on the spring bolt and make the spring bolt have the trend of withdrawing in the casing, and by the trigger mechanism of locking bar control. The mechanical coded lock has the characteristics of high technical cracking difficulty, convenience in code change and temporary power failure.

Description

Multifunctional mechanical coded lock

Technical Field

The utility model belongs to the technical field of the lock, refer in particular to a multi-functional mechanical trick lock.

Background

The coded lock is one kind of lock, and when the coded lock is opened, a series of numbers or symbols are used, and the character coded lock can be divided into: mechanical combination locks, digital combination locks, and the like.

In the case of mechanical combination locks, the combination is usually arranged rather than actually combined. Part of the coded lock only uses a turntable to rotate a plurality of discs or cams in the lock; also, a combination lock is provided in which a plurality of dial rings with numbers are rotated to directly drive the internal mechanism of the lock.

For example, ZL201720616360.3 discloses a mechanical combination lock, which uses eight dials to input correct combination to unlock the lock, and when all combination are input correctly, the lock bar will spring to both sides, so that the lock tongue can move out of the limit of the lock bar.

In the mechanical coded lock, when the correct code is not input, the lock tongue can be pulled to clamp the lock strip, and meanwhile, the poking wheel ring is rotated to sense whether the protrusions on the two sides of the lock strip are aligned with the concave holes in the lock plate or not. For a person who wants to break the mechanical coded lock, the technical unlocking can be realized in this way.

Therefore, for the mechanical combination lock, it is a constant research by those skilled in the art to overcome the technical problem and further improve the safety performance of the mechanical combination lock.

In addition, the mechanical combination lock disclosed in the above patent needs to be inserted into the hole at the bottom by a screwdriver and spread the locking plate, so that the change can be realized by rotating the rim, and the change mode is very troublesome.

In addition, in the existing lockset unlocked in an intelligent mode, technologies such as fingerprint identification, radio frequency identification and face identification need to be realized under the condition of power-on, but the existing technical cracking means are more advanced, and technical cracking means similar to a high-frequency Tesla coil and the like appear, but the technical means also need to be realized under the condition of power-on of the lockset, so that the safety of the lockset under the condition that a householder leaves home can be greatly guaranteed if the lockset has the function of temporary power-off, and the lockset is prevented from being stolen.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides a multifunctional mechanical coded lock, it possesses and is difficult for explaiing, easily changes the password to and the function of cutting off the power supply temporarily.

The purpose of the utility model is realized like this:

a multi-function mechanical combination lock comprising:

the shell comprises a bottom plate and an upper cover plate, wherein at least one group of poking wheel rings are arranged on the upper cover plate, rotating shafts of the poking wheel rings are positioned on the bottom plate, locking plates are sleeved on the rotating shafts, and unlocking notches are formed in outer rings of the locking plates;

the lock bar comprises a lock bar main body positioned in the middle of the shell and a triggering part formed by extending the lock bar main body to two sides, the triggering part is provided with a bulge capable of extending into the unlocking notch, and the shell is also provided with a first spring which enables the lock bar to have a tendency of popping upwards;

the bolt is rotatably arranged on the shell and is connected with a second spring so that the bolt has a tendency of retracting into the shell;

the trigger mechanism comprises a clutch piece which is arranged in the shell and positioned between the lock tongue and the lock bar, the clutch piece can enable the lock tongue to extend out of the shell, the clutch piece is connected with a trigger button, and a linkage state can be formed or released between the trigger button and the clutch piece;

when all bulges of the lock bar extend into the unlocking notch of the lock plate, the first spring enables the lock bar to move upwards and enables the clutch piece and the trigger button to form a linkage state, and the trigger button drives the clutch piece to act on the lock tongue so that the lock tongue extends out of the shell.

Furthermore, the clutch outer wall is formed with the inclined plane of pressing that supports that acts on the spring bolt, the inside through-hole that is formed with of clutch to and the cavity that is linked together with the through-hole, be equipped with the separation and reunion round pin in the cavity, have the third spring in the separation and reunion round pin, the third spring makes the separation and reunion round pin to be close to the motion of locking bar one side, trigger button locates in the through-hole to form on the trigger button and sell matched with recess with the separation and reunion.

Furthermore, the shell is internally provided with a spring plate which is positioned below the clutch piece, so that the clutch piece has a tendency of moving upwards, a fourth spring is arranged between the clutch piece and the trigger button, and the fourth spring makes the trigger button have a tendency of moving upwards.

Further, a bayonet is formed on one side of the clutch piece facing the lock bar, and a hook matched with the bayonet is formed on one side of the lock bar close to the clutch piece;

when the locking bar is close to the clutch piece under the action of the first spring and the clutch piece moves downwards along with the trigger button under the drive of the trigger button, the bayonet catches on the hook.

Furthermore, a support frame is formed on the bottom plate, a socket is formed on the support frame, and a ring groove clamped in the socket is formed on a rotating shaft of the poking wheel ring.

Furthermore, a poking strip is formed on each of two sides of the support frame, a poking protrusion is formed on the poking strip, a moving opening is formed in the upper cover plate, the poking protrusion extends out of the moving opening, and a poking notch matched with the poking protrusion is formed in the bottom of the poking wheel ring.

And a power-off switch for controlling the external circuit to be switched on and off is arranged in the shell.

Further, power-off switch locates in the casing to be located one side of spring bolt, power-off switch one side is equipped with the power-off button, and power-off button bottom is connected with the fifth spring and makes it have the trend that upwards pops out, be formed with the breach that supplies the power-off button to stretch out on the upper cover plate, the spring bolt is to being close to power-off switch one side extension formation can be with the portion of colluding that the power-off switch opened.

Further, power off switch locates in the casing, it is connected with the dwang to be located power off switch one side in the casing, dial the wheel rim wherein a set of wheel rim for the outage, the both sides of dwang are formed with the locking plate unblock notch matched with swing arm with outage group wheel rim, be connected with on the dwang and make it rotate sixth spring to power off switch one side, still be formed with the support briquetting that control power off switch opened or closed on the dwang.

Furthermore, a guide post is formed on the upper cover plate, and a limit groove matched with the guide post is formed on the locking bar main body.

Compared with the prior art, the utility model outstanding and profitable technological effect is:

1. the lock bar of the mechanical magnet lock moves by virtue of the first spring, namely when each poking wheel ring is poked to a correct position, the lock bar can be bounced upwards under the action of the first spring, the clutch piece and the trigger button can be integrated after the lock bar bounces, and then the lock tongue is kicked out of the shell by virtue of the trigger button, when the password of the poking wheel ring is incorrect, the lock bar is always in a state of being contacted with the lock plate but cannot be bounced upwards, in addition, even if the poking wheel ring is rotated by virtue of technical means to sense the position of an unlocking notch, because the lock bar is not in a fixed dead state, the correct password cannot be obtained by mutual sensing of a bulge on the lock bar and the unlocking notch on the lock plate, therefore, the mechanical coded lock has better safety performance, the technical cracking difficulty is higher, the number of used parts of the mechanical coded lock is less, the structure is simpler, and the effect is better under the condition of low manufacturing cost.

2. When the whole bulges of the locking bar triggering part extend into the unlocking notch of the locking plate, the triggering button can drive the clutch part to move downwards by pressing the triggering button, so that the bayonet on the clutch part is connected with the clamping hook on the locking bar, and at the moment, the unlocking notch of the locking plate is clamped with the bulges on the locking bar triggering part, and the rim is turned forcibly, so that the locking plate cannot be driven to rotate, and the password of the mechanical coded lock can be replaced.

3. Be provided with the power off switch in this mechanical trick lock, the function of outage temporarily can be played to the power off switch, for example, when this mechanical trick lock is used for the intelligent lock on the door, through linking to each other the circuit of power off switch and intelligent lock, when going out far away the door, break the circuit of intelligent lock through the power off switch, the thief just can't open the door through the technological means that needs use signal of telecommunication like this, for example Tesla electricity circle etc..

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 these drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of a mechanical combination lock.

Fig. 2 is a schematic diagram of the internal structure of the mechanical combination lock after the bottom plate is removed.

Fig. 3 is an exploded view of the mechanical combination lock with the upper cover removed.

Fig. 4 is a state diagram when the lock plate and the lock bar are not engaged with each other.

Fig. 5 is a state diagram when the lock plate is engaged with the lock bar.

Fig. 6 is a schematic structural view of the trigger mechanism and the latch portion.

Fig. 7 is a cross-sectional view of the trigger mechanism.

Fig. 8 is a state diagram when the locking bar is disengaged from the clutch member.

Fig. 9 is a view showing a state in which the lock bar and the clutch member are engaged with each other.

Fig. 10 is a first state view of the rim and the bracket separated.

Fig. 11 is a second state diagram of the thumb wheel ring separated from the support frame.

Fig. 12 is a schematic structural view of the mechanical combination lock with the rim hidden.

Fig. 13 is a schematic structural diagram of a first embodiment of a power-off switch in a mechanical combination lock.

Fig. 14 is a schematic structural diagram of a second embodiment of a power-off switch in a mechanical combination lock.

1-shell, 11-upper cover plate, 12-bottom plate, 13-support frame, 131-socket, 132-toggle bar, 133-toggle projection, 14-press column, 15-guide column, 16-power-off switch, 17-power-off button, 18-fifth spring, 19-notch, 2-toggle ring, 21-rotating shaft, 22-ring groove, 23-toggle notch, 3-locking plate, 31-unlocking notch, 4-lock bar, 41-lock bar main body, 42-trigger part, 421-projection, 43-trip, 44-limit groove, 5-first spring, 6-locking tongue, 61-hook part, 7-second spring, 8-trigger mechanism, 81-clutch part, 811-through hole, 812-cavity, 813-spring plate, 814-pressing inclined plane, 815-bayonet, 82-trigger button, 821-groove, 822-fourth spring, 83-clutch pin, 831-sliding groove, 832-third spring, 833-stop pin, 20-rotating rod, 201-swinging arm, 202-pressing block and 203-sixth spring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, a housing 1 of the mechanical combination lock is composed of an upper cover plate 11 and a bottom plate 12, at least more than one set of dial rings 2 are arranged on the upper cover plate 11, generally, the number of the dial rings 2 is at least two, and each set is two, so as to form a combination composed of 4 or 6 or 8 digits, and meanwhile, a trigger button 82 is further connected to the upper cover plate 11, and the trigger button 82 is used for controlling whether the bolt 6 in the housing 1 is ejected out of the housing 1.

As shown in fig. 2 and 3, each of the dialing rings 2 is connected to the rotating shaft 21, one end of the rotating shaft 21 is positioned on the bottom plate 12, so that the dialing ring 2 rotates stably, the locking plate 3 is connected to the outer periphery of the rotating shaft 21, the locking plate 3 is one of the key components for controlling whether the trigger button 82 can open the locking tongue 6, the locking plate 3 rotates along with the rotation of the dialing ring 2, an unlocking notch 31 is formed in the outer ring of the locking plate 3, the unlocking notch 31 corresponds to the correct number code, that is, when the dialing ring 2 rotates to the correct number, the unlocking notch 31 on the locking plate 3 is in the correct position, when the position of the unlocking notch 31 of each locking plate 3 is correct, the locking tongue 6 can be opened by pressing the trigger button 82, and the locking tongue 6 is compressed back into the housing 1 due to the second spring 7 on one side of the locking plate 6 under normal circumstances.

The lock bar 4 is a key component for matching with the lock plate 3, the lock bar 4 includes a lock bar main body 41 located in the center of the housing 1, two sides of the lock bar main body 41 are formed with trigger parts 42, the trigger parts 42 are provided with protrusions 421 corresponding to the unlocking notches 31, and the lock bar 4 is further connected with a first spring 5, the first spring 5 always enables the lock bar 4 to have a tendency of moving upwards, especially when the password of each dialing wheel rim 2 is correct, that is, the protrusions 421 on the trigger parts 42 of the lock bar 4 are all aligned with the unlocking notches 31, at this time, the lock bar 4 will move upwards under the driving of the first spring 5, as shown in fig. 5, otherwise, if the password of one dialing wheel rim 2 is not in a correct state, one of the protrusions 421 on the trigger parts 42 of the lock bar 4 will be blocked by the un-recessed part of the lock plate 3, so that the whole lock bar 4 cannot move upwards, as shown in fig. 4.

As shown in fig. 2-7, the housing 1 further includes a trigger mechanism 8, which is one of the keys for ensuring that the mechanical combination lock is not destroyed by the technology, the trigger mechanism 8 is composed of a clutch 81 and a trigger button 82, in the case of the full-pair of the lock plates 3, that is, when the protrusion 421 on the trigger portion 42 of the lock bar 4 fully extends into the unlocking notch 31 of the lock plate 3, the lock bar 4 will make the clutch 81 and the trigger button 82 form a linkage state in the process of upspring, that is, when the trigger button 82 is pressed, the trigger button 82 will drive the clutch 81 to move, so that the clutch 81 can act on the lock tongue 6 to force the lock tongue 6 to extend out of the housing 1, because when the lock bar 4 is not upspring, when the rim 2 is rotated, the protrusion 421 on the trigger portion 42 of the lock bar 4 always slides on the lock plate 3, and because of the first spring 5, no particularly obvious fall feeling occurs during the sliding, therefore, the password cannot be known through a technical cracking mode, namely, the lock strip 4 is tensioned, and the poking wheel ring 2 is rotated to sense the fall sensation.

Specifically, the clutch 81 of the trigger mechanism 8 forms a through hole 811, the trigger button 82 is connected in the through hole 811, the clutch 81 further forms a cavity 812, the cavity 812 is communicated with the through hole 811, the clutch pin 83 is connected in the cavity 812, a groove 821 matched with the clutch pin 83 is formed on the trigger button 82, when the lock bar 4 is sprung up under the action of the first spring 5, the tail end of the clutch pin 83 is pressed against and moves forward, the front end of the clutch pin 83 enters the groove of the trigger button 82, so that the trigger button 82 and the clutch 81 are integrated, when the trigger button 82 is pressed, the clutch 81 is pressed down and acts on the lock tongue 6 through a pressing inclined plane 814 on one side of the clutch pin 83, the lock tongue 6 is sprung out, when the lock bar 4 is not sprung up, the clutch pin 83 is reset, specifically, a chute 831 is arranged in the clutch pin 83, and a third spring 832 is fixed in the chute 831, in addition, a pin hole is formed in the clutch member 81, and a stopper pin 833 is provided in the pin hole, that is, the third spring 832 is fixed to one side of the stopper pin 833 and the sliding groove 831, and the clutch pin 83 tends to move toward the lock bar 4 in the cavity 812 at all times.

In addition, a spring plate 813 is arranged in the housing 1, the spring plate 813 enables the clutch member 81 to have a tendency of moving upwards, namely when the clutch member 81 moves under the driving of the trigger button 82, the spring plate 813 enables the clutch member 81 to reset upwards, meanwhile, a fourth spring 822 is further connected in the housing 1, when the clutch member 81 and the trigger button 82 do not form a linkage state, the trigger button 82 moves downwards, the clutch member 81 keeps still, and the fourth spring 822 enables the trigger button 82 to reset upwards.

As shown in fig. 8 and 9, a hook 43 is formed at the front end of the lock bar 4, a bayonet 815 is formed on the clutch member 81, when the position of the dial ring 2 is all correct, the lock bar 4 moves upwards, and pushes the clutch pin 83 to form a linkage state with the trigger button 82, at this time, the hook 43 of the lock bar 4 is aligned with but not connected to the bayonet 815 of the clutch member 81, and when the trigger button 82 is pressed to drive the clutch member 81 to move downwards to open the door, the bayonet 815 on the clutch member 81 and the hook 43 on the lock bar 4 are mutually locked, at this time, the lock bar 4 is locked by the clutch member 81 and cannot move backwards, in this state, by rotating the dial ring 2, even though the protrusion 421 on the trigger part 42 of the lock bar 4 is locked into the unlocking notch 31 on the lock plate 3, the lock plate 3 cannot rotate, and the purpose of changing the password is achieved.

As shown in fig. 10 to 13, a bracket 13 is formed on the bottom plate 12, the bracket 13 is formed with a socket 131, and a ring groove 22 clamped in the socket 131 is formed on the rotating shaft 21 of the rim 2. It has guaranteed that thumb wheel circle 2 keeps on a certain height, can not fluctuate, and then influence locking plate 3 position change, can't align with the arch 421 on the locking strip 4.

Furthermore, a toggle bar 132 is formed on two sides of the support frame 13, a toggle protrusion 133 is formed on the toggle bar 132, a moving opening 111 is formed on the upper cover plate 11, the toggle protrusion 133 extends out of the moving opening 111, and a toggle notch 23 matched with the toggle protrusion 133 is formed at the bottom of the toggle rim 2. When the rim 2 is rotated, the rim 2 can be rotated with a fall sense, and the rim 2 can be known to be rotated in place through the sense.

A power-off switch 16 for controlling the opening and closing of an external circuit is arranged in the shell of the mechanical coded lock. This mechanical trick lock can be used for multiple occasion, for example the safe, as the emergent unlocking mechanism that intelligent lock used etc. but no matter be used for which kind of occasion, to the tool to lock now, more and more all have the fingerprint to open, or the function that some other intelligent ways opened, and these functions all need rely on the circular telegram just can realize, the technique of cracking of tool to lock is more and more high-minded now, and technical means such as through high frequency Tesla electricity circle have appeared in the market directly cracked the password of tool to open the door. In order to avoid the situation, a power-off switch is additionally arranged in the mechanical coded lock to realize a temporary power-off function, after a circuit connected with the mechanical coded lock is powered off, an embezzler cannot crack the password through the technical means to open the door, and the power-on can be restored only under the condition that the mechanical coded lock is known to correspond to the password. And then the door is opened by giving an electric signal, such as fingerprint recognition technology, radio frequency recognition technology, face recognition technology and the like.

As shown in fig. 13, in order to realize the first embodiment of the power-off switch function, a power-off switch 16 is formed on the housing 1, i.e. one side of the bolt 6, the power-off switch 16 is connected with the outside, usually to the power circuit of the whole intelligent lock, a power-off button 17 is formed on one side of the power-off switch 16, the upper side of the power-off button 17 is exposed to the outside through a notch 19 on the upper cover plate 11, when the power-off button 17 is pressed downwards, the power-off button 17 drives the power-off switch 16 to move to one side to disconnect the intelligent lock, and a fifth spring 18 is connected below the power-off switch 16 to make the intelligent lock have a tendency to pop up, in this case, for example, when a user goes out of the door for a long time, the power supply to the whole intelligent lock is lost through the power-off switch 16 on the mechanical combination lock, the door cannot be opened by means of giving an electric signal, and the intelligent lock needs to be reconnected and powered, the portion 61 that colludes that forms on the spring bolt 6 at this moment can realize, and when the householder opened the intelligence lock through this mechanical trick lock, when opening the door promptly, collude portion 61 on the spring bolt 6 can be opened power-off switch 16 toward opening one side. Therefore, through the mechanism, when a person wants to open the door, the person must know the password of the mechanical coded lock to open the door, otherwise, the door is in a state of being incapable of being opened.

As shown in fig. 14, in order to realize the second embodiment of the power-off switch function, in this embodiment, one group of the thumb wheel ring 2 does not directly cooperate with the locking bar 4, but exists as a power-off thumb wheel ring, specifically, the power-off switch 16 is arranged below the locking bar 4 in the housing 1, and the rotating rod 20 is arranged below the power-off switch 16, and the two sides of the rotating rod 20 are formed with swing arms 201, the front ends of the swing arms 201 can extend into the unlocking notch 31 of the locking plate 3, when the two thumb wheel rings 2 as the power-off thumb wheel rings drive the locking plate 3 to rotate to the correct position, i.e. when the correct password is input, the two swing arms 201 on the rotating rod 20 will extend into the unlocking notch 31 of the locking plate 3, at this time, the rotating rod 20 will rotate to the side close to the power-off switch 16 under the action of the sixth spring 203, and the pressing block 202 on the rotating rod 20 will press the contact of the power, this contact contacts and realizes switching on with the outage switch completely, and is relative, and when the position of locking plate 3 was not to the time, the outer lane of locking plate 3 can block the swing arm 201 of dwang outside, consequently, dwang 20 also can't further rotate, and then drives suppression piece 202 and push down the contact, it needs to explain that this contact is for having elasticity, when no external force supports and presses, it can bounce off for outage switch 16 outage.

As shown in fig. 4 and 5, the outer ring of the locking plate 3 is a regular polygon, and the outer ring of the regular polygon gives a mechanical hand feeling when the rim 2 is rotated each time, so that it is difficult to determine whether the protrusion 421 on the trigger portion 42 of the locking bar 4 falls into the unlocking notch 31 through a technology.

As shown in fig. 2, a guide post 15 is formed on the upper cover plate 11, and a limiting groove 44 is formed on the main body of the locking bar 4 for cooperating with the guide post 15. Which makes the movement of the locking bar 4 more stable.

As shown in fig. 2, a pressing column 14 is formed on the upper cover plate 11, and the pressing column 14 presses the locking piece 3 against the bottom plate 12. The pressing column 14 prevents the vertical position of the locking piece 3 from being changed.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A multi-function mechanical combination lock, comprising:

2. The multifunctional mechanical coded lock of claim 1, wherein a pressing inclined plane acting on the lock tongue is formed on the outer wall of the clutch member, a through hole and a cavity communicated with the through hole are formed inside the clutch member, a clutch pin is arranged in the cavity, a third spring is arranged in the clutch pin, the third spring enables the clutch pin to move towards one side close to the lock bar, the trigger button is arranged in the through hole, and a groove matched with the clutch pin is formed in the trigger button.

3. The multifunctional mechanical coded lock of claim 2, wherein a spring plate is further arranged in the shell and located below the clutch piece, so that the clutch piece has a tendency to move upwards, and a fourth spring is arranged between the clutch piece and the trigger button and enables the trigger button to have a tendency to move upwards.

4. The multifunctional mechanical coded lock of claim 2, wherein a bayonet is formed on one side of the clutch piece facing the lock bar, and a hook matched with the bayonet is formed on one side of the lock bar close to the clutch piece;

5. The multifunctional mechanical coded lock of claim 1, wherein a support frame is formed on the bottom plate, the support frame is formed with a socket, and a ring groove clamped in the socket is formed on a rotating shaft of the poking wheel ring.

6. The multifunctional mechanical coded lock of claim 5, wherein the bracket is formed with toggle strips on both sides, the toggle strips are formed with toggle protrusions, the upper cover plate is formed with movable openings, the toggle protrusions extend out of the movable openings, and the bottom of the toggle wheel rim is provided with toggle notches matched with the toggle protrusions.

7. The multifunctional mechanical coded lock of claim 1, wherein a power-off switch for controlling an external circuit to be turned on and off is arranged in the shell, and the power-off switch is turned on and off by the thumb wheel ring.

8. The multifunctional mechanical coded lock of claim 7, wherein the power-off switch is disposed in the housing and located on one side of the lock tongue, a power-off button is disposed on one side of the power-off switch, a fifth spring is connected to the bottom of the power-off button to make the power-off button pop up, a notch for the power-off button to extend out is formed in the upper cover plate, and a hook portion capable of opening the power-off switch is formed by extending the lock tongue to a side close to the power-off switch.

9. The multifunctional mechanical coded lock of claim 7, wherein the power-off switch is disposed in the housing, a rotating rod is connected to one side of the power-off switch in the housing, one group of the poking wheel rings is a power-off poking wheel ring, swing arms matched with locking plate unlocking notches of the poking wheel rings in power-off are formed on two sides of the rotating rod, a sixth spring is connected to the rotating rod to rotate the rotating rod to one side of the power-off switch, and a pressing block for controlling the power-off switch to be turned on or turned off is further formed on the rotating rod.

10. The multifunctional mechanical coded lock of claim 1, wherein a guide post is formed on the upper cover plate, and a limiting groove matched with the guide post is formed on the locking bar main body.