CN111734224B - Magnetic driving mechanical puzzle lock - Google Patents

Abstract

A magnetic drive type mechanical coded lock relates to the field of turntable permutation type mechanical coded locks, and completes permutation operation by directly rotating 6 knob disks; the cam mechanism is driven to rotate by the handle to realize unlocking and locking; when checking the number, the linkage shaft movably connected with each knob shaft passes through the lock body, then drives the overload protection device and the code changer to rotate, then returns into the lock body along the same axis and drives the sawtooth wheel and the magnetic driving wheel to synchronously rotate, and the follower wheel provided with the notch rotates along with the rotation. The magnetic driving wheel and the driven wheel are not in contact and are only driven by the attraction of the strong magnet, and the cam firstly pushes the locking plate to be inserted into the tooth grooves of the serrated wheels during unlocking, the knob disc cannot rotate any more, then the inserting plate is inserted into the notch of each driven wheel, and the cam continues to rotate to unlock, so that the lockset cannot be technically unlocked; when the handle or the knob disc is strongly twisted, the handle and the knob disc can idle; the password change and the messy code operation are simple and easy to implement, and are particularly suitable for important occasions with low use frequency.

Description

Magnetic driving mechanical puzzle lock

Technical Field

The invention relates to the field of turntable permutation type mechanical coded locks, in particular to a magnetic drive type mechanical coded lock.

Background

The turntable checking type mechanical coded lock has a wide application range, is commonly used on file cabinets, vaults, safe cases, safe boxes and anti-theft doors as a mechanical blocking mechanism, but has a series of problems for a long time, namely, the time consumption of the checking process is too long, and the operation is inconvenient; secondly, the password cannot be changed, and the password is inconvenient to be hidden and stored or remembered; thirdly, the anti-theft performance cannot be technically opened, because the knob disc is directly contacted with a blocking mechanism in the lockset through the knob shaft, and the lock is easy to crack by means of hearing, hand feeling and experience; fourth, prevent that destruction performance is not too close, especially install the trick lock in the tool to lock outer panel and be equipped with the trick lock of handle, when directly destroying tool to lock outer panel or the powerful handle that twists reverse, the corresponding part of tool to lock easily suffers destruction, even destructive opening.

The rotary disc number-checking type mechanical coded lock is rarely applied to the anti-theft door because the field of the anti-theft door has high requirements on anti-theft opening and anti-damage performance, the unlocking and locking frequency of the anti-theft door is more, and the code is easy to leak during decoration.

A hole sealing type mechanical coded lock (patent number ZL 201811539519.1) well solves the series of problems: the technical unlocking can not be realized through a special structure of firstly sealing holes and then decoding unlocking; the destructiveness of preventing is opened, and when the handle was turned round to the brute force, the handle can the idle running. When the outer panel of the lock is removed or damaged, the lock still cannot be technically opened, and the exposed cam shaft still can idle; the password is adjustable, and the password changing operation is simple, easy, stable and reliable; the device is particularly suitable for occasions with low use frequency, and has the advantages of high safety factor, simple structure and low manufacturing cost.

However, the hole sealing type mechanical coded lock also has certain problems, mainly the number checking operation process is relatively complicated: when checking the numbers, the number checking operation can be finished by firstly pressing each knob disc and inserting the convex edge of the knob shaft into the butt joint groove of the knob shaft; after unlocking and locking, in order to prevent the password from being stolen, the numbers of the knob disks corresponding to the sight need to be disordered, namely, the code disordering operation process also needs to be finished by firstly pressing the knob disks and inserting the convex edges into the butt joint grooves, and certain trouble is brought to a user.

Disclosure of Invention

In order to overcome the defects of the rotating disc type number matching mechanical coded lock and the hole sealing type mechanical coded lock, the invention provides a magnetic drive type mechanical coded lock, which directly and respectively rotates 6 knob discs to complete the number matching operation without pressing the knob discs; the cam mechanism is still driven to rotate by the handle to realize unlocking and locking; when checking numbers, after the linkage shaft movably connected with each knob shaft passes through the lock body, the overload protection device and the code changer are driven to rotate, then the linkage shaft returns into the lock body along the same axis and drives the number checking mechanism to rotate, finally, the 6 follower wheels with the openings rotate to the correct positions, the cam pushes the plug board to be inserted into each opening, and the cam mechanism can continue to rotate to unlock the lock. However, the magnetic driving wheel and the follow-up wheel in the number matching mechanism are not in contact and are driven only by the attraction of the strong magnet, and the cam firstly pushes the locking plate to be inserted into the saw teeth of each saw-tooth wheel during unlocking, so that the knob disc cannot rotate, and then pushes the inserting plate to move to unlock, thereby realizing that the lock cannot be unlocked technically; when the handle and the knob disk are strongly twisted, the handle and the knob disk can idle; the password changing operation and the code disordering operation are simple and easy to implement.

The invention adopts the following technical scheme: a magnetic drive type mechanical coded lock comprises a lock body, a buckle cover, a lock outer panel and a handle, wherein the lock outer panel is provided with the handle, 6 knob discs which are independent from each other and 6 corresponding knob shafts, the inner side end of each knob shaft is axially provided with a square blind hole, a registration sight is arranged right above each knob disc, 10 digital scales from 0 to 9 are uniformly distributed on each knob disc and are sequenced from small to large in a clockwise direction, the lock body is in a rectangular shape, the side panel positioned on the outer side is a lock body outer panel, the side panel positioned on the inner side is a lock body inner side panel, the lower part of the inner side panel of the lock body is assembled with the buckle cover, a cavity formed by the knob cover and the knob cover is used for assembling an unlocking execution mechanism, the unlocking and the locking are completed by driving a lock bolt and a lock tongue to run, the lower side in the lock body is provided with a cam mechanism, and the cam mechanism comprises a cam, The lock comprises a circular table, a circular table shaft, a driving shaft, collision beads and collision bead springs, wherein 4 cylindrical collision bead slideways are arranged on the circular table along the radial direction and are uniformly distributed along the circumferential direction, 1 collision bead spring and 1 collision bead are respectively movably assembled in the collision bead slideways from inside to outside, the circular table is movably assembled with an inner cavity of a cam, 4 stop through holes are formed between the inner cavity of the cam and the outer circular surface of the cam and correspond to the 4 collision bead slideways, the diameter of each stop through hole is smaller than that of the collision bead, part of each collision bead is embedded into the stop through hole under a static state, the inner side end of the circular table shaft is assembled with the circular table and synchronously rotates, the middle part of the circular table shaft is movably assembled with a shaft hole of a lock body outer side plate, the square shaft at the outer side end of the circular table shaft extends out of the lock body outer side plate, a lock is arranged on a reinforcing plate at the inner side of a door leaf outer panel, the square shaft at the outer side end of the circular table shaft is movably inserted into the square hole of a rotating shaft, and a square hole is arranged on the axial lead of the cam, this square hole assembles with the square shaft of the outside end of drive shaft, the shaft hole activity of curb plate is assembled in the middle part of drive shaft and the lock body, the flat axle of side is the flat axle of drive shaft promptly in the drive shaft, the most terminal circle axle of drive shaft inboard is the drive shaft circle axle, the flat axle of drive shaft, the drive shaft circle axle all stretches out outside the curb plate in the lock body, get into the buckle closure promptly, and be connected with the actuating mechanism that unblanks, be equipped with the arc slide of 2 with the degree of depth along the circumferencial direction on the excircle face of cam inboard, and arrange along the axial of cam, the left side terminal surface of each arc slide is the flange promptly, outwards be first flange and second flange in proper order from the inside, when the cam can not rotate and the brute force is twistd reverse, the round platform, the idle rotation of the relative cam of round platform axle and handle, characterized by: the lock body is internally provided with 6 linkage shafts and 4 guide shafts in the direction vertical to the lock body, the arrangement mode of the linkage shafts is that the linkage shafts are arranged in an upper row and a lower row in the horizontal direction, the linkage shafts are bilaterally symmetrical in the vertical direction, the lock body is internally provided with 3 plates in the direction parallel to the lock body, a transverse clapboard, a plugboard and a locking plate are sequentially arranged from outside to inside, the outer side end of each linkage shaft is movably assembled with the shaft hole of the outer side plate of the lock body, the square shaft of the end head at the outermost side of the linkage shaft extends out of the outer side plate of the lock body and is movably assembled with a square blind hole at the inner side end of a knob shaft and synchronously rotates, the part of each linkage shaft positioned between the outer side plate of the lock body and the inner side plate of the lock body is in the shape of a stepped shaft, the outer side part of each linkage shaft is a thick shaft, the inner side part of the linkage shaft is a thin shaft, the thin shaft is movably assembled with a shaft center through hole of a rotating shaft, the outer part of the rotating shaft is composed of four parts, the small flat shaft, the large flat shaft, the round shaft and the small flat shaft are arranged from outside to inside, the small flat shaft at the outermost side is assembled with the long round hole of the magnetic driving wheel, the large flat shaft is assembled with the long round hole of the sawtooth wheel, the round shaft is movably assembled with the shaft hole of the inner side plate of the lock body, the small flat shaft at the innermost side passes through the inner side plate of the lock body and is assembled with the long round hole of the code wheel, the edge of the code wheel is provided with 10 code changing holes along the axial direction and is uniformly distributed along the circumferential direction of the code wheel, simultaneously, 2 opposite code changing holes of the code wheel are positioned on the central line of the length direction of the long round hole of the code wheel, the thin shaft of each linkage shaft passes through the axle center through hole of the return rotating shaft and extends out of the inner side plate of the lock body and is movably assembled with the code changing disc and the central through hole of the wheel cover, wherein the outer side surface of the code changing disc is movably contacted with the inner side surface of the code wheel, 1 radial opening is arranged right below the central through hole of the code changing disc, the wheel cover is shaped like a bucket and is buckled outside the code changing disc from inside to outside, the inner side surface of the wheel cover, the inner side surface of the code changing wheel and a space formed by radial openings of the code changing disc are filled with 1 spring and 1 steel ball, the corresponding position of the inner side end of the linkage shaft is provided with 1 key slot, the steel ball is embedded into one part of the key slot under the pushing of the spring in a static state, the linkage shaft drives the code changing disc to rotate through the key slot and the steel ball when rotating, when the resistance borne by the code changing disc exceeds a limit value, the linkage shaft idles, 1 code changing screw hole is also arranged right above a central through hole of the code changing disc, the wheel cover is provided with 1 through hole corresponding to the code changing screw hole, 1 code changing bolt penetrates through the through hole and is assembled with the code changing screw hole, the outer end of the code changing bolt penetrates through the code changing screw hole and is inserted into the 1 code changing hole of the code changing wheel and is inserted into different code changing holes to represent different unlocking passwords, the sawtooth wheel is provided with 10 sawteeth, the shape is an isosceles triangle, and simultaneously, the two opposite tooth roots of the serrated wheel are positioned on the central line of the length direction of the long circular hole of the serrated wheel, the two ends of each guide shaft are respectively assembled with the corresponding shaft holes of the outer side plate and the inner side plate of the lock body, the middle part of each guide shaft is in a step shaft shape and sequentially comprises a partition plate shaft, an inserting plate shaft, a limiting shaft and a locking plate shaft from outside to inside, the diameters of the partition plate shaft and the locking plate shaft are the same and are smaller than the diameter of the inserting plate shaft, the diameter of the inserting plate shaft is smaller than the diameter of the limiting shaft, 4 guide holes are correspondingly arranged on the transverse partition plate and are respectively movably assembled with the inner side end of the partition plate shaft of each guide shaft, 1 cushion ring is movably assembled between the outer side plate of the lock body and the transverse partition plate, the transverse partition plate is also provided with 6 through holes, namely follow-up wheel holes for assembling follow-up wheels, the axle centers of the follow-up wheels are also used as axle center through holes, and the thick shafts of the linkage shafts penetrate through the axle center through holes, and a certain gap is reserved between the follower wheel and the follower wheel, the outer part of the follower wheel is in a step shaft shape and is composed of three parts from outside to inside, the diameter of the three parts is gradually increased, wherein the outer side end of the follower wheel is an assembling wheel, the outer circular surface of the assembling wheel is movably assembled with a follower wheel hole, a clamp spring groove is arranged at the outer end head of the follow wheel after the assembling wheel penetrates through the follow wheel hole outwards, 1 clamp spring is assembled, the middle part of the follower wheel is a notch wheel, the lower part of the outer circular surface of the follower wheel is provided with 1 notch, namely a follow-up notch, the inner side end of the follower wheel is an annular wheel in a ring shape, a space formed by the inner circular surface of the assembling wheel, namely an inner cavity of the follower wheel is used for accommodating a magnetic driving wheel, the left side and the right side of the inner cavity of the follower wheel are respectively assembled with 1 arc-shaped strong magnet, the left side and the right side of the outer circular surface of the magnetic driving wheel are respectively assembled with 1 arc-shaped strong magnet, the diameter of the outer circular surface of the magnetic driving wheel is smaller than the diameter of the inner cavity of the follower wheel, a certain gap is reserved between the outer circular surface of the follower wheel, the upper part of the inner cavity of the follower wheel is provided with 1 arc-shaped groove, the upper part of the outer circle surface of the magnetic driving wheel is provided with 1 safety pin, the outer end of the safety pin is positioned in the arc-shaped groove and can move left and right in the arc-shaped groove for a certain angle, under static state, the safety pin is not in contact with the arc-shaped groove, when the magnetic driving wheel rotates, the follow-up wheel is driven to rotate by the suction force of the strong magnet, when the resistance force borne by the follow-up wheel exceeds a limit value, the magnetic driving wheel pushes the end surface of the arc-shaped groove through the safety pin to enable the follow-up wheel to forcibly follow and rotate, the upper part of the inserting plate is in a shape when two 'out' characters are tightly combined, 4 long circular holes and 6 inserting lugs are arranged on the inserting plate, the inserting plate is movably assembled with the inserting plate shaft of each guide shaft through the 4 long circular holes respectively, each inserting lug is aligned to the right below an opening wheel of the follow-up wheel, when the password is correct, each follow-up opening is positioned right below the opening wheel, each inserting lug can be simultaneously inserted into the corresponding follow-up opening, and further can move upwards for a certain distance, the lower part of the inserting plate is vertically bent inwards and then vertically bent downwards, the shape of the locking plate is like a 'common' character without two 'points' below, 4 long circular holes and 6 sharp teeth are correspondingly arranged on the locking plate, the locking plate is movably assembled with the locking plate shaft of the guide shaft through the 4 long circular holes, each sharp tooth is in an isosceles triangle shape and is respectively aligned to the position under the sawtooth wheel, after the locking plate moves upwards, each sharp tooth is respectively inserted into the sawtooth of the corresponding sawtooth wheel to prevent the linkage shaft where each sawtooth wheel is positioned from rotating, 1 convex corner protruding downwards is also arranged under the locking plate and the inserting plate, the left side of each convex corner is an inclined surface inclining to the right lower side, each convex corner is positioned in each arc-shaped slide way of the cam in a static state and is respectively aligned to the corresponding flange, the left lower sides of the locking plate and the inserting plate are respectively connected with the upper ends of the corresponding reset tension springs, and the lower ends of the reset tension springs are connected with the lower part of the lock body, when the lock is unlocked, each knob disc rotates to a correct number position, in the process of pressing down the handle and clockwise rotating the cam, a first flange of the cam is firstly contacted with a convex angle of a locking plate so as to push the locking plate to move upwards, each sharp tooth is inserted into 1 sawtooth of a corresponding sawtooth wheel, the sawtooth wheel can not rotate any more, when the first flange is separated from the convex angle of the locking plate, a second flange is contacted with the convex angle of an inserting plate and enables the inserting plate to move upwards, each inserting lug is simultaneously inserted into a corresponding follow-up notch, the inserting plate moves upwards to a terminal point, the cam can continue to rotate so as to drive an unlocking execution mechanism to operate and open the lock, if the password is incorrect, at least 1 follow-up notch is not positioned under the notch wheel so as to prevent the inserting plate from moving upwards and further prevent the cam from continuing to rotate, the lock can not be opened, if the knob disc is strongly twisted or the knob disc, the handle and the knob disc both idle, after the handle is rotated reversely, the inserting plate and the locking plate are reset in sequence under the action of the reset tension springs.

In the scheme, the linkage shaft penetrates through the outside of the lock body to be assembled with the code changing disc, and then transmits the rotary motion back into the lock body to drive the sawtooth wheel and the magnetic driving wheel to rotate, so that the code changing mechanism is arranged at the innermost side of the lock body, namely the outside of the lock body, and the code changing operation is convenient; the lower part of the inserting plate is bent inwards, so that the total thickness of the lock body is greatly reduced.

The function of the safety pin is to prevent the phenomena of half cycle difference of the numbers, disordered passwords, incapability of unlocking or difficulty in unlocking and the like caused by instant impact force or accidental resistance.

The diameter of the inserting plate shaft of the guide shaft in the scheme can be changed into the same size as the partition plate shaft, only a certain fit clearance is required to be ensured, the inserting plate can freely reciprocate, and the function of the lockset is unchanged.

Because the follow-up notch is positioned at the lower part of the outer circular surface of the notch wheel of the follow-up wheel, and the arc-shaped groove is positioned at the upper part of the inner cavity of the follow-up wheel, the gravity center of the follow-up wheel is closer to the axial lead by the de-weight effect of the follow-up notch and the arc-shaped groove, which is beneficial to reducing the resistance in magnetic drive.

When the numbers are matched, the actual positions of the knob disks, the sawtooth wheel, the magnetic driving wheel and the driven wheel after rotation always have certain deviation, but the sharp teeth of the locking plate and the sawteeth on the sawtooth wheel have the correction function, namely, the sharp teeth can finally enable the driven wheels to rotate to the positions in the process of inserting the sawteeth into the tooth grooves of the sawteeth.

When the technology is started, the conduction conditions of short impact between the insertion lug and the outer circular surface of the notch wheel, including sound intensity and vibration intensity, need to be analyzed, discriminated and judged through hearing, hand feeling and experience. In addition, the contact condition is judged by the rotation resistance. If the password is incorrect, the sawtooth wheel cannot rotate because the first flange of the cam cannot rotate before the insertion lug contacts or impacts the outer circular surface of the notch wheel (the contact or the impact is weak generally because of small clearance), but the follower wheel does not contact the magnetic driving wheel at the moment, and the axle center through hole of the follower wheel has enough clearance with the linkage shaft, so the impact cannot be conducted, and the user can not find the feeling from the aspect of knob discs, namely the lock cannot be technically opened.

The key groove, the spring and the steel ball are arranged between the tail end of the linkage shaft and the code changing disc and are used as an overload protection device to enable the linkage shaft to idle, so that the knob shaft and the handle have the same anti-damage function.

According to the scheme, under the condition that the outer panel of the lockset is not arranged or is damaged, the lockset still has the performance of incapability of technical opening and destructive opening.

The operation process of code disorder: after the lock is unlocked, the handle is reset, and the knob disc can be twisted randomly.

Initial password: the initial password of the coded lock is set to be 6 and 0, so that the coded lock is easy to remember and is convenient for lock assembly.

Changing the password operation program: firstly, each knob disk is rotated to the position of the initial password or the password used originally, the handle is pressed down to be unlocked, the unlocking state is kept, namely, the handle cannot be reset, and the insertion lugs of the insertion plate are inserted into the follow-up notches. And then the code-changing bolt is withdrawn from the code-changing screw hole for a certain length, the knob disc is rotated to a new code position, and the code-changing bolt is screwed in again and inserted into the code-changing hole. And changing the passwords of other knob disks by the same method to finish the password change of the lockset.

The diaphragm plate, the plug plate, the locking plate, the wheel cover, the code wheel, the code disc, the sawtooth wheel and other parts can be processed and manufactured in a stamping and bending mode. The method belongs to a mould batch production process, so that the precision is high and the cost is low.

The invention selects 6 groups of number checking mechanisms, each group has 10 digital scales corresponding to the password position, so the key amount of the lockset is 6 powers of 10, namely 100 ten thousand, and the actually used key amount is equal to a theoretical value-1 (initial password). If 4 sets of number checking mechanisms are adopted, the key amount is 4 powers of 10, namely 1 ten thousand, and the key amount is still suitable for being used in non-important occasions due to the fact that the key amount cannot be technically started, and the structure can be simplified, and the cost can be reduced.

The unlocking process of the lockset of the invention needs to carry out number matching on 6 knob disks, so the lockset is suitable for occasions with low use frequency, such as a safe and the like. Because the password is adjustable, the changed password is convenient to remember, and the trouble of hiding and keeping keys is saved.

The unlocking actuating mechanism of the lockset adopts the related technologies of a double-insertion type anti-theft door and an external hanging type locking device (patent number ZL 201610129609.8) and a gear serial key mechanical anti-theft lock (application number 202010176602.8) in the prior art. When the lockset is used for a security door, the unlocking actuator comprises an outdoor driving disk, a swing rod, a pull plate, an indoor driving disk, a right-angle rotating plate, a bolt driving disk, a lock bolt and a bolt, wherein a driving shaft flat shaft and a driving shaft round shaft are respectively assembled with the outdoor driving disk and the swing rod; when the lockset is used for a safety box, the requirement can be met only by driving the lock bolt, a lock bolt and a lock bolt driving device are not needed, indoor driving devices such as an indoor driving disc and the like are not needed, and a right-angle rotating plate is not needed to drive a top and bottom rod, so that the multipoint locking device of the safety box has the function.

Furthermore, the plug board of the lockset can be replaced by a flat plate-shaped plug board without bending, the corresponding plug board shaft moves between the limiting shaft and the lock board shaft and has the same diameter with the lock board shaft, 1 backing ring is movably assembled between the plug board without bending and the lock board, a gap wheel in the middle of a follower wheel is cancelled, the follower gap is arranged on the outer circular surface of an annular wheel of the follower wheel, when each knob disk rotates to the correct password position, the plug lug of the plug board without bending can be inserted into the gap wheel, and the lockset performance is not changed.

The invention has the beneficial effects that: the lockset is driven by magnetic force in the middle link of the number matching mechanism, adopts a non-contact transmission mode, and has the following characteristics while realizing the technical unlocking by a special structure of locking and unlocking firstly: the number matching operation process, the messy code operation process and the password changing process are more convenient and easy to implement; the knob disc and the handle can idle, and the anti-theft opening performance is unchanged even if the knob disc and the handle damage to the outer panel of the lockset, so that the anti-theft opening performance is very strong, and the safety coefficient is high; simple structure, low cost, and is especially suitable for important occasions with low frequency of use.

The present invention will be further described with reference to fig. 1 to 41.

Drawings

FIG. 1: the overall structure schematic diagram of the coded lock;

FIG. 2: the right side view of FIG. 1;

FIG. 3: FIG. 1 is a sectional view taken along line A-A;

FIG. 4: a lock plate front view;

FIG. 5: the left side view of FIG. 4;

FIG. 6: a front view of the board;

FIG. 7: the right side view of FIG. 6;

FIG. 8: FIG. 6 is a top view;

FIG. 9: a diaphragm plate schematic view;

FIG. 10: a schematic view of a universal driving shaft;

FIG. 11: a schematic view of a guide shaft;

FIG. 12: a transcoding verification intent;

FIG. 13: a front view of the wheel cover;

FIG. 14: the left side view of FIG. 13;

FIG. 15: a code wheel schematic diagram;

FIG. 16: a code-changing position schematic diagram;

FIG. 17: returning to the front view of the rotating shaft;

FIG. 18: the right side view of FIG. 17;

FIG. 19: a saw-tooth wheel schematic view;

FIG. 20: front view of the magnetic driving wheel;

FIG. 21: the left side view of fig. 20;

FIG. 22: a front view of the follower wheel;

FIG. 23: FIG. 22 is a partial sectional view taken along line B-B;

FIG. 24: FIG. 22 is a sectional view taken along line B-B;

FIG. 25: a front view of the cam mechanism;

FIG. 26: the left side view of FIG. 25;

FIG. 27 is a schematic view showing: a front view of the cam;

FIG. 28: the left side view of fig. 27;

FIG. 29: a circular truncated cone schematic view;

FIG. 30: a circular truncated cone shaft schematic view;

FIG. 31: the circular truncated cone is assembled with a circular truncated cone shaft;

FIG. 32: a schematic view of a drive shaft;

FIG. 33: the knob disc, the knob shaft and the outer panel of the lockset are assembled schematically;

FIG. 34: a knob disk schematic;

FIG. 35: the board of fig. 1 is changed to a right side view without the bent board;

FIG. 36: the insert plate of fig. 1 is changed to a cross-sectional view a-a without a bent insert plate;

FIG. 37: a schematic view of a guide shaft when a bending-free inserting plate is adopted;

FIG. 38: a schematic view of a non-bent inserting plate;

FIG. 39: adopting a front view of a follow-up wheel when a bending-free inserting plate is adopted;

FIG. 40: FIG. 39C-C is a partial sectional view;

FIG. 41: fig. 39 is a cross-sectional view taken along line C-C.

In each figure: 1, a lock body, 2, a lock body outer side plate, 3, a lock body inner side plate, 4, a buckle cover, 5, a lock outer panel, 6, a knob plate, 7, a knob shaft, 8, a cam, 9, a stop through hole, 10, an arc-shaped slideway, 11, a first flange, 12, a second flange, 13, a circular truncated cone, 14, a circular truncated cone shaft, 15, a driving shaft, 16, a driving shaft flat shaft, 17, a driving shaft circular shaft, 18, a collision ball, 19, a collision ball spring, 20, a linkage shaft, 21, a key groove, 22, a return shaft, 23, an axial through hole, 24, a code changing wheel, 25, a code changing hole, 26, a code changing disc, 27, a central through hole, 28, a radial opening, 29, a code changing screw hole, 30, a code changing bolt, 31, a wheel cover, 32, a serrated wheel, 33, 34, a magnetic force, 35, 36, a safety pin, 37, a follower wheel, 38, an assembly wheel, 39, a strong magnetic notch, 40, a circular wheel, 42, a follower wheel inner cavity, 43, an arc-shaped groove, 44, a guide shaft, 45, a partition plate shaft, 46, an inserting plate shaft, 47, a limiting shaft, 48, a locking plate shaft, 49, a transverse partition plate, 50, a guide hole, 51, a follower wheel hole, 52, an inserting plate, 53, an inserting lug, 54, a locking plate, 55, a sharp tooth, 56, a convex angle and 57, a backing ring.

Detailed Description

Embodiment 1:

as shown in fig. 1, 2 and 3, the magnetic drive type mechanical coded lock comprises a lock body 1, a buckle cover 4, a lock outer panel 5 and a handle, wherein the handle, 6 knob disks 6 which are independent of each other and 6 corresponding knob shafts 7 are arranged on the lock outer panel 5. The lock body 1 is rectangular, the side panel that is located the outside is lock body outer panel 2, the side panel that is located the inboard is lock body inside side panel 3, the inboard lower part and the buckle closure 4 assembly of lock body inside side panel 3, the outside of the cavity that the two formed and buckle closure 4 is used for assembling the actuating mechanism that unblanks to accomplish through drive set bar, spring bolt operation and unblank and lock, the downside in the lock body 1 is equipped with cam mechanism.

As shown in fig. 25 to 32, the cam mechanism includes a cam 8, a circular truncated cone 13, a circular truncated cone shaft 14, a driving shaft 15, collision beads 18 and collision bead springs 19, wherein 4 cylindrical collision bead slideways are radially arranged on the circular truncated cone 13 and uniformly distributed in the circumferential direction, 1 collision bead spring 19 and 1 collision bead 18 are respectively movably assembled in the collision bead slideways from inside to outside, an inner cavity of the cam 8 is movably assembled with the circular truncated cone 13, 4 stop through holes 9 are arranged between the inner cavity of the cam 8 and the outer circumferential surface of the cam corresponding to the 4 collision bead slideways, the diameter of each stop through hole 9 is smaller than that of each collision bead 18, and a part of each collision bead is embedded into each stop through hole 9 in a static state. The inner side end of the circular truncated cone shaft 14 is assembled with the circular truncated cone 13 and synchronously rotates, the middle of the circular truncated cone shaft is movably assembled with the shaft hole of the lock body outer side plate 2, the square shaft of the outer side end of the circular truncated cone shaft extends out of the lock body outer side plate 2, and after the lockset is installed on the reinforcing plate on the inner side of the door leaf outer panel, the square shaft of the outer side end of the circular truncated cone shaft 14 is movably inserted into the square hole of the handle rotating shaft. The axis of the cam 8 is provided with a square hole which is fitted with a square shaft at the outer end of the drive shaft 15. As shown in fig. 2 and 3, the middle part of the driving shaft 15 is movably assembled with the shaft hole of the inner side plate 3 of the lock body, the flat shaft at the inner side end of the driving shaft 15 is a driving shaft flat shaft 16, the circular shaft at the extreme end of the inner side of the driving shaft is a driving shaft circular shaft 17, and the driving shaft flat shaft 16 and the driving shaft circular shaft 17 both extend out of the inner side plate 3 of the lock body, namely enter the buckle cover 4 and are connected with the unlocking executing mechanism. The outer circular surface of the inner side of the cam 8 is provided with 2 arc-shaped slideways 10 with the same depth along the circumferential direction, and the arc-shaped slideways are arranged along the axial direction of the cam 8, the left end surface of each arc-shaped slideway is a flange, and the left end surface of each arc-shaped slideway is a first flange 11 and a second flange 12 which are arranged from inside to outside in sequence. When the cam 8 cannot rotate and the handle is strongly twisted, the circular truncated cone 13, the circular truncated cone shaft 14 and the handle idle rotate relative to the cam 8.

As shown in fig. 33 and 34, a square blind hole is axially formed at the inner end of each knob shaft 7, a registration star (not shown) is arranged right above each knob disk 6, and 10 digital scales from 0 to 9 are uniformly distributed on each knob disk 6 and are arranged from small to large in the clockwise direction.

As shown in fig. 1, 2 and 3, 6 linkage shafts 20 and 4 guide shafts 44 are arranged in the lock body 1 in the vertical direction, the arrangement mode is two rows up and down in the horizontal direction, the linkage shafts are symmetrical left and right in the vertical direction, 3 plates are arranged in the lock body 1 in the direction parallel to the lock body, and a transverse partition plate 49, an insertion plate 52 and a locking plate 54 are arranged in sequence from outside to inside.

As shown in fig. 10, the outer end of each linkage shaft 20 is movably assembled with the shaft hole of the lock body outer side plate 2, the outermost end of each linkage shaft 20 is a square shaft, extends out of the lock body outer side plate 2, and is movably assembled and synchronously rotated with the square blind hole at the inner side end of the knob shaft 7, the part of each linkage shaft 20 located between the lock body outer side plate 2 and the lock body inner side plate 3 is in a step shaft shape, the outer part of each linkage shaft is a thick shaft, the inner part of each linkage shaft is a thin shaft, and the thin shaft is movably assembled with the shaft center through hole 23 of the return shaft 22.

As shown in fig. 17 and 18, the outer portion of the rotating shaft 22 is composed of four parts, namely a small flat shaft, a large flat shaft, a round shaft and a small flat shaft from outside to inside, wherein the small flat shaft on the outermost side is assembled with the long round hole of the magnetic driving wheel 34, the large flat shaft is assembled with the long round hole of the sawtooth wheel 32, the round shaft is movably assembled with the shaft hole of the lock body inner side plate 3, and the small flat shaft on the innermost side penetrates through the lock body inner side plate 3 and is assembled with the long round hole of the code changing wheel 24.

As shown in fig. 15, 10 code changing holes 25 are axially formed in the edge of the code changing wheel and are uniformly distributed in the circumferential direction of the code changing wheel 24, and at the same time, 2 opposite code changing holes 25 of the code changing wheel are located on the central line of the long round hole in the length direction.

As shown in figure 2, the thin shaft of each linkage shaft 20 passes through the axial center through hole 23 of the return rotating shaft 22 and then extends to the outside of the lock body inner side plate 3, and is movably assembled with the code changing disc 26 and the central through hole 27 of the wheel cover 31, wherein the outer side surface of the code changing disc 26 is movably contacted with the inner side surface of the code changing wheel 24. As shown in fig. 12, directly below the central through hole 27 of the code disc 26 are 1 radial opening 28. As shown in fig. 13 and 14, the wheel cover 31 is shaped like a bucket and is buckled outside the code disc 26 from inside to outside, and 1 spring and 1 steel ball are filled in a space formed by the inner side surface of the wheel cover 31, the inner side surface of the code wheel 24 and the radial opening 28.

As shown in fig. 2 and 10, 1 key slot 21 is arranged at a corresponding position of the inner side end of the linkage shaft 20, the steel ball is embedded into a part of the key slot 21 under the pushing of the spring in a static state, the code changing disc 26 is driven to rotate by the key slot 21 and the steel ball when the linkage shaft 20 rotates, and when the resistance force applied to the code changing disc exceeds a limit value, the linkage shaft 20 idles. As shown in fig. 12, 1 number of code-changing screw holes 29 are further provided right above the central through hole 27 of the code-changing disk 26, 1 number of through holes are provided corresponding to the code-changing screw holes in the wheel cover 31, 1 number of code-changing bolts 30 are assembled with the code-changing screw holes 29 after passing through the through holes, and the outer ends of the code-changing bolts are inserted into the 1 number of code-changing holes 25 of the code-changing wheel 24 after passing through the code-changing screw holes and are inserted into different code-changing holes, which represents different unlocking passwords.

As shown in fig. 19, the saw-toothed wheel 32 is provided with 10 saw teeth 33, the saw teeth 33 are shaped as isosceles triangles, and 2 opposite tooth roots of the saw-toothed wheel 32 are positioned on the central line of the long circular hole in the length direction.

As shown in fig. 3, two ends of each guide shaft 44 are respectively assembled with corresponding shaft holes of the lock body outer side plate 2 and the lock body inner side plate 3, the middle part of each guide shaft 44 is in a stepped shaft shape, as shown in fig. 11, a partition plate shaft 45, a plug plate shaft 46, a limiting shaft 47 and a lock plate shaft 48 are sequentially arranged from outside to inside, wherein the diameters of the partition plate shaft 45 and the lock plate shaft 48 are the same and smaller than the diameter of the plug plate shaft 46, and the diameter of the plug plate shaft 46 is smaller than the diameter of the limiting shaft 47.

As shown in fig. 9, the diaphragm plate 49 is correspondingly provided with 4 guide holes 50, which are movably assembled with the inner side end of the diaphragm shaft 45 of the guide shaft 44, respectively, the outer side end of the diaphragm shaft 45, i.e. between the lock body outer side plate 2 and the diaphragm plate 49, is movably assembled with 1 backing ring 57, and the diaphragm plate 49 is further provided with 6 through holes, i.e. follower wheel holes 51, for assembling the follower wheels 37.

As shown in fig. 22, 23 and 24, the axle center of the follower wheel 37 is also provided with an axle center through hole 23, and the axle center through hole 23 is used for the thick shaft of the universal driving shaft 20 to pass through, and a certain gap is reserved between the two. The outer part of the follower wheel 37 is in a stepped shaft shape and is composed of three parts from outside to inside, the diameters of the three parts are gradually increased, wherein the outer side end of the follower wheel 37 is provided with an assembling wheel 38, the outer circular surface of the assembling wheel is movably assembled with a follower wheel hole 51, and the head of the outer side end of the assembling wheel is provided with a clamp spring groove after the assembling wheel passes through the follower wheel hole outwards, and 1 clamp spring is assembled. The middle part of the follower wheel 37 is a notch wheel 39, the lower part of the outer circular surface of the follower wheel is provided with 1 notch, namely a follower notch 40, the inner side end of the follower wheel is an annular wheel 41 in an annular shape, the space formed by the inner circular surface of the follower wheel, namely an inner cavity 42 of the follower wheel is used for accommodating the magnetic driving wheel 34, the left side and the right side of the inner circular surface of the follower wheel are respectively provided with 1 arc-shaped strong magnet 35, and the strong magnet can adopt neodymium iron boron Nd2Fe 14B.

As shown in fig. 20 and 21, 1 arc-shaped strong magnet 35 is respectively mounted on the left and right sides of the outer circumferential surface of the magnetic driving wheel 34, and the diameter of the outer circumferential surface of the magnetic driving wheel 34 is smaller than that of the inner cavity 42 of the follower wheel, with a certain gap being left between the two. The upper part of the inner cavity 42 of the follower wheel is provided with a 1 arc-shaped groove 43, and the upper part of the outer circular surface of the magnetic driving wheel 34 is provided with 1 safety pin 36, the outer end of which is positioned in the arc-shaped groove 43 and can move left and right for a certain angle. In a static state, the outer end of the safety pin 36 is not in contact with the arc-shaped groove 43, when the magnetic driving wheel 34 rotates, the magnetic driving wheel 34 drives the follower wheel 37 to rotate through the attraction of the strong magnet 35, and when the resistance force borne by the follower wheel 37 exceeds the limit value, the magnetic driving wheel 34 pushes the end surface of the arc-shaped groove 43 through the safety pin 36 to enable the follower wheel 37 to rotate in a forced following manner.

As shown in fig. 6, 7 and 8, the upper part of the insertion plate 52 is in the shape of two adjacent Chinese characters, 4 oblong holes and 6 insertion lugs 53 are arranged on the insertion plate, the insertion plate 52 is movably assembled with the insertion plate shaft 46 of each guide shaft 44 through the 4 oblong holes, each insertion lug 53 is aligned to the position right below the notch wheel 39 of the follower wheel 37, when the password is correct, each follower notch 40 is positioned right below the notch wheel 39, each insertion lug 53 can be inserted into the corresponding follower notch 40 at the same time, and the insertion plate 52 can move upwards for a certain distance. As shown in fig. 7, the lower portion of the insert plate 52 is bent inward and then downward.

As shown in fig. 4 and 5, the locking plate 54 is shaped like a "common" character with two "points" below removed, and is correspondingly provided with 4 oblong holes and 6 sharp teeth 55, wherein the locking plate 54 is movably assembled with the locking plate shaft 48 of the guide shaft 44 through the 4 oblong holes, each sharp tooth 55 is an isosceles triangle and is respectively aligned with the right lower part of the serrated wheel 32, and after the locking plate 54 moves upwards, each sharp tooth 55 is respectively inserted into the tooth groove of the sawtooth 33 of the corresponding serrated wheel to prevent the linkage shaft 20 on which each serrated wheel 32 is located from rotating. The locking plate 54 and the inserting plate 52 are provided with 1 convex corner 56 which protrudes downwards, and the left side of each convex corner 56 is a slope which inclines to the lower right. As shown in fig. 1, 2 and 3, each convex corner 56 is located in each arc-shaped slideway 10 of the cam 8 and aligned with the corresponding flange respectively in the static state, the left lower parts of the locking plate 54 and the inserting plate 52 are also connected with the upper ends of the corresponding return tension springs respectively, and the lower ends of the return tension springs are connected with the lower part of the lock body 1.

Unlocking process and working principle: when the lock is unlocked, each knob disc 6 rotates to a correct number position, and in the process of pressing down the knob to enable the cam 8 to rotate clockwise, the first flange 11 of the cam is firstly contacted with the convex angle 56 of the locking plate 54, so that the locking plate 54 is pushed to move upwards, each sharp tooth 55 is inserted into the tooth groove of 1 sawtooth corresponding to the sawtooth wheel 32, and the sawtooth wheel 32 can not rotate any more; when the first flange 11 is separated from the convex corner 56 of the locking plate 54, the second flange 12 starts to contact the convex corner 56 of the inserting plate 52, the inserting plate 52 moves upwards, the inserting lugs 53 are simultaneously inserted into the corresponding follow-up gaps 40, the inserting plate 52 moves upwards to the end point, the cam 8 can continue to rotate, and the unlocking actuating mechanism is driven to operate to unlock the lockset; if the password is incorrect, at least 1 following notch 40 is not arranged under the notch wheel 39, the inserting plate 52 is prevented from moving upwards, the cam 8 is further prevented from continuing to rotate, and the lockset cannot be unlocked. If the handle or the knob disk 6 is twisted strongly, the handle and the knob disk 6 are idle. After the handle is rotated reversely, the inserting plate 52 and the locking plate 54 are reset in sequence under the action of the reset tension springs.

The operation process of code disorder: after the lock is unlocked, the handle is reset, and the knob disc 6 can be twisted randomly.

Initial password: the initial password of the coded lock is set to be 6 and 0, so that the coded lock is easy to remember and is convenient for lock assembly.

And (3) changing the password operation process: as shown in fig. 33 and 34, each knob disk 6 is turned to the initial password or the original password using position, the handle is pressed down to unlock, the unlocking state is kept, namely, the handle cannot be reset, and the inserting lugs 53 are inserted into the following gaps 40. As shown in fig. 16, the transcoding bolt 30 is withdrawn from the transcoding screw hole 29 by a certain length, the dial 6 is rotated to the new code position, the transcoding bolt 30 is screwed again and inserted into the transcoding hole 25. And changing the passwords of other knob disks 6 by the same method to finish the password change of the lockset. As shown in FIG. 16, to facilitate the code changing operation, 10 numeric scales from 0 to 9 may be marked around the wheel cover 31 and sorted from small to large in the counterclockwise direction.

Embodiment 2:

as shown in fig. 35, 36 and 38, the insert plate 52 of the lock of the present invention can be replaced by a flat plate-shaped insert plate without bending. As shown in fig. 37, the board insertion shaft 46 of the corresponding guide shaft 44 is moved between the stopper shaft 47 and the board locking shaft 48 and has the same diameter as the board locking shaft 48. And 1 backing ring 57 is movably assembled between the bending-free inserting plate and the locking plate. As shown in fig. 39, 40 and 41, the step in the middle of the follower wheel 37, i.e. the notch wheel, is removed, and the follower notch 40 is arranged on the outer circular surface of the annular wheel 41 of the follower wheel 37, so that the lock performance is unchanged.

Claims (2)

1. A magnetic drive type mechanical coded lock comprises a lock body, a buckle cover, a lock outer panel and a handle, wherein the lock outer panel is provided with the handle, 6 knob discs which are independent from each other and 6 corresponding knob shafts, the inner side end of each knob shaft is axially provided with a square blind hole, a registration sight is arranged right above each knob disc, 10 digital scales from 0 to 9 are uniformly distributed on each knob disc and are sequenced from small to large in a clockwise direction, the lock body is in a rectangular shape, the side panel positioned on the outer side is a lock body outer panel, the side panel positioned on the inner side is a lock body inner side panel, the lower part of the inner side panel of the lock body is assembled with the buckle cover, a cavity formed by the knob cover and the knob cover is used for assembling an unlocking execution mechanism, the unlocking and the locking are completed by driving a lock bolt and a lock tongue to run, the lower side in the lock body is provided with a cam mechanism, and the cam mechanism comprises a cam, The lock comprises a circular table, a circular table shaft, a driving shaft, collision beads and collision bead springs, wherein 4 cylindrical collision bead slideways are arranged on the circular table along the radial direction and are uniformly distributed along the circumferential direction, 1 collision bead spring and 1 collision bead are respectively movably assembled in the collision bead slideways from inside to outside, the circular table is movably assembled with an inner cavity of a cam, 4 stop through holes are formed between the inner cavity of the cam and the outer circular surface of the cam and correspond to the 4 collision bead slideways, the diameter of each stop through hole is smaller than that of the collision bead, part of each collision bead is embedded into the stop through hole under a static state, the inner side end of the circular table shaft is assembled with the circular table and synchronously rotates, the middle part of the circular table shaft is movably assembled with a shaft hole of a lock body outer side plate, the square shaft at the outer side end of the circular table shaft extends out of the lock body outer side plate, a lock is arranged on a reinforcing plate at the inner side of a door leaf outer panel, the square shaft at the outer side end of the circular table shaft is movably inserted into the square hole of a rotating shaft, and a square hole is arranged on the axial lead of the cam, this square hole assembles with the square shaft of the outside end of drive shaft, the shaft hole activity of curb plate is assembled in the middle part of drive shaft and the lock body, the flat axle of side is the flat axle of drive shaft promptly in the drive shaft, the most terminal circle axle of drive shaft inboard is the drive shaft circle axle, the flat axle of drive shaft, the drive shaft circle axle all stretches out outside the curb plate in the lock body, get into the buckle closure promptly, and be connected with the actuating mechanism that unblanks, be equipped with the arc slide of 2 with the degree of depth along the circumferencial direction on the excircle face of cam inboard, and arrange along the axial of cam, the left side terminal surface of each arc slide is the flange promptly, outwards be first flange and second flange in proper order from the inside, when the cam can not rotate and the brute force is twistd reverse, the round platform, the idle rotation of the relative cam of round platform axle and handle, characterized by: the lock body is internally provided with 6 linkage shafts and 4 guide shafts in the direction vertical to the lock body, the arrangement mode of the linkage shafts is that the linkage shafts are arranged in an upper row and a lower row in the horizontal direction, the linkage shafts are bilaterally symmetrical in the vertical direction, the lock body is internally provided with 3 plates in the direction parallel to the lock body, a transverse clapboard, a plugboard and a locking plate are sequentially arranged from outside to inside, the outer side end of each linkage shaft is movably assembled with the shaft hole of the outer side plate of the lock body, the square shaft of the end head at the outermost side of the linkage shaft extends out of the outer side plate of the lock body and is movably assembled with a square blind hole at the inner side end of a knob shaft and synchronously rotates, the part of each linkage shaft positioned between the outer side plate of the lock body and the inner side plate of the lock body is in the shape of a stepped shaft, the outer side part of each linkage shaft is a thick shaft, the inner side part of the linkage shaft is a thin shaft, the thin shaft is movably assembled with a shaft center through hole of a rotating shaft, the outer part of the rotating shaft is composed of four parts, the small flat shaft, the large flat shaft, the round shaft and the small flat shaft are arranged from outside to inside, the small flat shaft at the outermost side is assembled with the long round hole of the magnetic driving wheel, the large flat shaft is assembled with the long round hole of the sawtooth wheel, the round shaft is movably assembled with the shaft hole of the inner side plate of the lock body, the small flat shaft at the innermost side passes through the inner side plate of the lock body and is assembled with the long round hole of the code wheel, the edge of the code wheel is provided with 10 code changing holes along the axial direction and is uniformly distributed along the circumferential direction of the code wheel, simultaneously, 2 opposite code changing holes of the code wheel are positioned on the central line of the length direction of the long round hole of the code wheel, the thin shaft of each linkage shaft passes through the axle center through hole of the return rotating shaft and extends out of the inner side plate of the lock body and is movably assembled with the code changing disc and the central through hole of the wheel cover, wherein the outer side surface of the code changing disc is movably contacted with the inner side surface of the code wheel, 1 radial opening is arranged right below the central through hole of the code changing disc, the wheel cover is shaped like a bucket and is buckled outside the code changing disc from inside to outside, the inner side surface of the wheel cover, the inner side surface of the code changing wheel and a space formed by radial openings of the code changing disc are filled with 1 spring and 1 steel ball, the corresponding position of the inner side end of the linkage shaft is provided with 1 key slot, the steel ball is embedded into one part of the key slot under the pushing of the spring in a static state, the linkage shaft drives the code changing disc to rotate through the key slot and the steel ball when rotating, when the resistance borne by the code changing disc exceeds a limit value, the linkage shaft idles, 1 code changing screw hole is also arranged right above a central through hole of the code changing disc, the wheel cover is provided with 1 through hole corresponding to the code changing screw hole, 1 code changing bolt penetrates through the through hole and is assembled with the code changing screw hole, the outer end of the code changing bolt penetrates through the code changing screw hole and is inserted into the 1 code changing hole of the code changing wheel and is inserted into different code changing holes to represent different unlocking passwords, the sawtooth wheel is provided with 10 sawteeth, the shape is an isosceles triangle, and simultaneously, the two opposite tooth roots of the serrated wheel are positioned on the central line of the length direction of the long circular hole of the serrated wheel, the two ends of each guide shaft are respectively assembled with the corresponding shaft holes of the outer side plate and the inner side plate of the lock body, the middle part of each guide shaft is in a step shaft shape and sequentially comprises a partition plate shaft, an inserting plate shaft, a limiting shaft and a locking plate shaft from outside to inside, the diameters of the partition plate shaft and the locking plate shaft are the same and are smaller than the diameter of the inserting plate shaft, the diameter of the inserting plate shaft is smaller than the diameter of the limiting shaft, 4 guide holes are correspondingly arranged on the transverse partition plate and are respectively movably assembled with the inner side end of the partition plate shaft of each guide shaft, 1 cushion ring is movably assembled between the outer side plate of the lock body and the transverse partition plate, the transverse partition plate is also provided with 6 through holes, namely follow-up wheel holes for assembling follow-up wheels, the axle centers of the follow-up wheels are also used as axle center through holes, and the thick shafts of the linkage shafts penetrate through the axle center through holes, and a certain gap is reserved between the follower wheel and the follower wheel, the outer part of the follower wheel is in a step shaft shape and is composed of three parts from outside to inside, the diameter of the three parts is gradually increased, wherein the outer side end of the follower wheel is an assembling wheel, the outer circular surface of the assembling wheel is movably assembled with a follower wheel hole, a clamp spring groove is arranged at the outer end head of the follow wheel after the assembling wheel penetrates through the follow wheel hole outwards, 1 clamp spring is assembled, the middle part of the follower wheel is a notch wheel, the lower part of the outer circular surface of the follower wheel is provided with 1 notch, namely a follow-up notch, the inner side end of the follower wheel is an annular wheel in a ring shape, a space formed by the inner circular surface of the assembling wheel, namely an inner cavity of the follower wheel is used for accommodating a magnetic driving wheel, the left side and the right side of the inner cavity of the follower wheel are respectively assembled with 1 arc-shaped strong magnet, the left side and the right side of the outer circular surface of the magnetic driving wheel are respectively assembled with 1 arc-shaped strong magnet, the diameter of the outer circular surface of the magnetic driving wheel is smaller than the diameter of the inner cavity of the follower wheel, a certain gap is reserved between the outer circular surface of the follower wheel, the upper part of the inner cavity of the follower wheel is provided with 1 arc-shaped groove, the upper part of the outer circle surface of the magnetic driving wheel is provided with 1 safety pin, the outer end of the safety pin is positioned in the arc-shaped groove and can move left and right in the arc-shaped groove for a certain angle, under static state, the safety pin is not in contact with the arc-shaped groove, when the magnetic driving wheel rotates, the follow-up wheel is driven to rotate by the suction force of the strong magnet, when the resistance force borne by the follow-up wheel exceeds a limit value, the magnetic driving wheel pushes the end surface of the arc-shaped groove through the safety pin to enable the follow-up wheel to forcibly follow and rotate, the upper part of the inserting plate is in a shape when two 'out' characters are tightly combined, 4 long circular holes and 6 inserting lugs are arranged on the inserting plate, the inserting plate is movably assembled with the inserting plate shaft of each guide shaft through the 4 long circular holes respectively, each inserting lug is aligned to the right below an opening wheel of the follow-up wheel, when the password is correct, each follow-up opening is positioned right below the opening wheel, each inserting lug can be simultaneously inserted into the corresponding follow-up opening, and further can move upwards for a certain distance, the lower part of the inserting plate is vertically bent inwards and then vertically bent downwards, the shape of the locking plate is like a 'common' character without two 'points' below, 4 long circular holes and 6 sharp teeth are correspondingly arranged on the locking plate, the locking plate is movably assembled with the locking plate shaft of the guide shaft through the 4 long circular holes, each sharp tooth is in an isosceles triangle shape and is respectively aligned to the position under the sawtooth wheel, after the locking plate moves upwards, each sharp tooth is respectively inserted into the sawtooth of the corresponding sawtooth wheel to prevent the linkage shaft where each sawtooth wheel is positioned from rotating, 1 convex corner protruding downwards is also arranged under the locking plate and the inserting plate, the left side of each convex corner is an inclined surface inclining to the right lower side, each convex corner is positioned in each arc-shaped slide way of the cam in a static state and is respectively aligned to the corresponding flange, the left lower sides of the locking plate and the inserting plate are respectively connected with the upper ends of the corresponding reset tension springs, and the lower ends of the reset tension springs are connected with the lower part of the lock body, when the lock is unlocked, each knob disc rotates to a correct number position, in the process of pressing down the handle and clockwise rotating the cam, a first flange of the cam is firstly contacted with a convex angle of a locking plate so as to push the locking plate to move upwards, each sharp tooth is inserted into 1 sawtooth of a corresponding sawtooth wheel, the sawtooth wheel can not rotate any more, when the first flange is separated from the convex angle of the locking plate, a second flange is contacted with the convex angle of an inserting plate and enables the inserting plate to move upwards, each inserting lug is simultaneously inserted into a corresponding follow-up notch, the inserting plate moves upwards to a terminal point, the cam can continue to rotate so as to drive an unlocking execution mechanism to operate and open the lock, if the password is incorrect, at least 1 follow-up notch is not positioned under the notch wheel so as to prevent the inserting plate from moving upwards and further prevent the cam from continuing to rotate, the lock can not be opened, if the knob disc is strongly twisted or the knob disc, the handle and the knob disc both idle, after the handle is rotated reversely, the inserting plate and the locking plate are reset in sequence under the action of the reset tension springs.

2. A magnetically-actuated mechanical combination lock according to claim 1, wherein: the plug board can be replaced by a flat plate-shaped plug board without bending, the corresponding plug board shaft moves between the limiting shaft and the lock board shaft and has the same diameter with the lock board shaft, 1 backing ring is movably assembled between the plug board without bending and the lock board, a gap wheel in the middle of the follower wheel is omitted, the follower gap is arranged on the outer circular surface of the annular wheel of the follower wheel, when each knob disk rotates to the correct password position, the plug lug of the plug board without bending can be inserted into the gap wheel, and the performance of the lockset is unchanged.

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