CN111764752B - Push-off mechanical puzzle lock - Google Patents

Abstract

A pushing and disengaging 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 numbers, the linkage shaft movably connected with each knob shaft passes through the lock body, drives the overload protection device and the code changer to rotate, returns into the lock body along the same axis, drives the sawtooth wheel and the shifting wheel to rotate, and finally enables 6 follow-up wheels provided with openings to rotate. When the lock is unlocked, the cam firstly pushes the locking plate to be inserted into the tooth groove of the sawtooth wheel, each knob disc cannot rotate, then the extrusion plate is pushed to enable the cross sliding plate and the follower wheel to move transversely, the follower wheel is enabled to be separated from contact with the ejector pin on the shifting wheel, finally the inserting plate is pushed to be inserted into the notch of each follower wheel, the cam continues to rotate to unlock the lock, and the lock cannot be unlocked technically. When the handle or the knob disc is strongly twisted, the handle and the knob disc can idle; the password changing operation and the code disordering operation are simple and easy to implement.

Description

Push-off mechanical puzzle lock

Technical Field

The invention relates to the field of turntable permutation type mechanical coded locks, in particular to a pushing and disengaging 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 push-off type mechanical coded lock, which does not need to press a knob disc but directly and respectively rotates 6 knob discs to complete the number matching operation; the cam mechanism is still driven to rotate by the handle to realize unlocking and locking; when checking numbers, the linkage shaft movably connected with each knob shaft passes through the lock body, drives the overload protection device and the code changer to rotate, returns into the lock body along the same axis, drives the sawtooth wheel and the shifting wheel to rotate, and finally enables 6 follow-up wheels provided with openings to rotate. When the lock is unlocked, the cam firstly pushes the locking plate to be inserted into the tooth grooves of the sawtooth wheel, each knob disc cannot rotate any more, then the extrusion plate is pushed to enable the cross sliding plate and the follower wheel to move transversely, the follower wheel is enabled to be separated from contact with the ejector pin on the shifting wheel, finally the inserting plate is pushed to be inserted into the notch of each follower wheel, and the cam continues to rotate to unlock the lock. Namely, the knob disc is timely separated from the interior of the lockset and loses contact with the interior of the lockset, so that the lockset can not be opened technically. When the handle or the knob disc is strongly twisted, the handle and the knob disc 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 pushing and releasing 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, the knob discs are provided with 10 digital scales which are uniformly distributed and are from 0 to 9, the knob discs 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 lock body is used for assembling an unlocking execution mechanism, unlocking and 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 actuating mechanism unblanks, be equipped with the arc slide of 3 co-depths 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, from inside to outside be first flange in proper order, second flange and third flange, when the cam can not rotate and the powerful handle that twists reverse, the round platform, round platform axle and the relative cam of handle idle, characterized by: the lock body is internally provided with 6 linkage shafts, 6 return rotating shafts and 4 guide shafts in a vertical lock body direction, the arrangement mode of the lock body is that the lock body is divided into an upper row and a lower row in the horizontal direction, the lock body is bilaterally symmetrical in the vertical direction, 4 plates are arranged in the lock body in a direction parallel to the lock body, a cross sliding plate, a plug plate, a pushing plate 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 outermost side end of each linkage shaft is a square body and extends out of the outer side plate of the lock body, the linkage shafts are movably assembled and synchronously rotate with a square blind hole at the inner side end of a knob shaft, the part of each linkage shaft, which is positioned between the outer side plate of the lock body and the inner side plate of the lock body, is in a step shaft shape, the outer side part of each linkage shaft is a thick shaft, the inner side part of each thin shaft is movably assembled with a shaft center through hole of the return rotating shaft, the outer side end of the return rotating shaft is movably contacted with the inner side end of the thick shaft, the outer side end of the return rotating shaft is a flat shaft and is simultaneously contacted with a saw-toothed wheel, The long circular hole of the dial wheel is assembled and synchronously rotated, the serrated wheel is positioned at the inner side of the dial wheel and is movably contacted with the inner side plate of the lock body, the serrated wheel is provided with 10 sawteeth, the shape of the sawteeth is an isosceles triangle, simultaneously, 2 opposite tooth roots of the serrated wheel are positioned on the central line of the length direction of the long circular hole, 1 thimble is respectively and fixedly assembled at the left side and the right side of the long circular hole of the dial wheel along the axial direction, the parts of the two thimbles penetrating through the outer side of the dial wheel are conical tips, the outer circle surface of the inner side end of the rotating shaft is movably assembled with the shaft hole of the inner side plate of the lock body, the inner end of the rotating shaft also extends out of the inner side plate of the lock body, the extending part is also a flat shaft and is assembled with the long circular hole of the code-changing wheel and synchronously rotated, the outer side surface of the code-changing wheel is movably contacted with the inner side plate of the lock body, the edge of the code-changing wheel is provided with 10 code holes along the axial direction and is uniformly distributed along the circumferential direction of the code-changing wheel, meanwhile, 2 opposite code changing holes of the code changing wheel are positioned on the central line of the long circular hole in the length direction, a thin shaft of each linkage shaft penetrates through a shaft center through hole of the return rotating shaft and then extends out of an inner side plate of the lock body and is movably assembled with a center through hole of the driving wheel and a wheel cover, wherein the outer side surface of the driving wheel is movably contacted with the inner side surface of the code changing wheel, 1 radial gap is arranged right below the center through hole of the driving wheel, the wheel cover is in a bucket shape and is buckled outside the driving wheel from inside to outside, 1 spring and 1 steel ball are arranged in a space formed by the inner side surface of the wheel cover, the inner side surface of the code changing wheel and the radial gap, 1 key groove is arranged at the corresponding position of the inner side end of the linkage shaft, the steel ball is embedded into one part of the key groove under the pushing of the spring in a static state, the linkage shaft drives the driving wheel to rotate through the steel ball and the steel ball when rotating, and when the resistance borne by the driving wheel exceeds the limit value, the universal driving wheel is idle, 1 code-changing screw hole is arranged right above a central through hole of the driving wheel, 1 through hole is arranged on the wheel cover corresponding to the code-changing screw hole, 1 code-changing bolt penetrates through the through hole and then is assembled with the code-changing screw hole, the outer end of the code-changing bolt penetrates through the code-changing screw hole and then 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, two ends of each guide shaft are respectively assembled with 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 is sequentially provided with a sliding plate shaft, a clamp spring groove, a inserting plate shaft, a pushing plate shaft, a limiting shaft and a locking plate shaft from outside to inside, wherein the diameters of the sliding plate shaft, the inserting plate shaft and the locking plate shaft are the same and are smaller than that of the pushing plate shaft, the diameter of the pushing plate shaft is smaller than that of the limiting shaft, 1 clamp spring is assembled in the clamp spring groove, 4 guide holes are correspondingly arranged on the transverse sliding plate, the outer side end of the push spring is contacted with the outer side plate of the lock body, the inner side end of the push spring is contacted with the cross sliding plate, the inner side surface of the cross sliding plate is contacted with the clamp spring on the guide shaft, the cross sliding plate is also additionally provided with 6 through holes, namely follower wheel holes, for assembling the follower wheel, the axis line of the follower wheel is also provided with an axis through hole, the axis through hole is used for a thick shaft of the linkage shaft to pass through, a certain gap is reserved between the thick shaft and the cross sliding plate, the outer part of the follower wheel is in a step shaft shape, wherein the outer circular surface of the outer side end of the follower wheel is movably assembled with the follower wheel holes, the outer side end head of the follower wheel after passing through the follower wheel holes is provided with a clamp spring groove and is assembled with 1 clamp spring, the inner side end of the follower wheel is in a disc shape, the left side and the right side of the disc are respectively provided with 1 axial through hole, namely a butt joint hole, and the lower part of the disc is provided with 1 gap, namely a follower opening, in a static state, the inner end face of a disc of a follower wheel is in movable contact with the outer end face of a shifting wheel, two conical tips of the shifting wheel are respectively and movably inserted into butt-joint holes of the follower wheel, namely, the shifting wheel can drive the follower wheel to synchronously rotate, an inserting plate is in the shape of two adjacent Chinese characters, 4 long circular holes and 6 inserting lugs are arranged on the inserting plate, the inserting plate is respectively and movably assembled with inserting plate shafts of all guide shafts through the 4 long circular holes, at the moment, the inserting plate and a transverse sliding plate are mutually isolated through clamp springs on the guide shafts, each inserting lug is aligned to the position under the follower wheel, when a password is correct, each follow-up opening is positioned under the follower wheel, each inserting lug can be simultaneously inserted into the corresponding follow-up opening, further, the inserting plate can move upwards for a certain distance, 4 long vertical long holes, namely long hole push plates are correspondingly arranged on the push plate and are respectively and movably assembled with the push plate shafts of the guide shafts, the lower part of each push plate long hole is respectively provided with 1 inclined push surface which inclines inwards, the middle upper part and the middle lower part of the push plate are respectively provided with 1U-shaped opening and 1 long round hole or both are rectangular, the poking wheel and the follower wheel are positioned in the U-shaped openings, a certain gap is always kept between the poking wheel and the follower wheel when the push plate vertically reciprocates, 1 through hole is respectively arranged right below each guide hole on the cross sliding plate, and 1 rivet is fixedly assembled, the end of the rivet is hemispherical, the rivet is perpendicular to the cross sliding plate and extends towards the inner side, in a static state, the rivet penetrates through the long round hole of the inserting plate and enters the push plate long hole on the push plate and is movably contacted with the upper part of the inclined push surface of the push plate, when the push plate moves upwards, the inclined push surface pushes the rivet and the cross sliding plate outwards along the guide shaft for a certain distance, the shape of the locking plate is like two ' common ' point ' under the locking plate, the lock is characterized in that the lock plate is correspondingly provided with 4 long circular holes and 6 sharp teeth, the lock plate is movably assembled with a lock 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 with the position under the sawtooth wheel, after the lock plate moves upwards, each sharp tooth is respectively inserted into a tooth socket of a sawtooth corresponding to the sawtooth wheel to prevent a linkage shaft where each sawtooth wheel is located from rotating, 1 convex corner protruding downwards is further arranged under the lock plate, the pushing plate and the inserting plate, the left side of each convex corner is an inclined plane inclining towards 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 with each flange, the left lower sides of the lock plate, the pushing plate and the inserting plate are respectively connected with the upper end of a corresponding reset tension spring, the lower end of each reset tension spring is connected with the lower part of the lock body, each knob disc rotates to the correct number position when the lock is unlocked, and each knob disc presses down to press the lock handle, In the forward rotation process of the cam, a first flange of the cam is firstly contacted with a convex corner of the locking plate to further push the locking plate to move upwards, so that each sharp tooth is inserted into 1 tooth socket of the corresponding serrated wheel, the serrated wheel can not rotate any more, when the first flange is separated from the convex corner of the locking plate, a second flange is contacted with the convex corner of the pushing plate, the pushing plate is moved upwards, so that the rivet, the cross sliding plate and the follow-up wheel move outwards for a certain distance, a certain gap is formed between a butt joint hole of the follow-up wheel and a conical tip on the thumb wheel, namely the contact is lost, when the second flange is separated from the convex corner of the pushing plate, a third flange is contacted with the convex corner of the plug board, the plug board moves upwards, each plug lug is simultaneously inserted into the corresponding follow-up opening, the plug board moves upwards to the end point, the cam can continue to rotate, so as to drive the unlocking execution mechanism to operate and open the lockset, if the password is incorrect, at least 1 follow-up opening is not positioned under the follow-up wheel, the inserting plate is prevented from moving upwards, the cam is further prevented from continuing to rotate, the lockset cannot be opened, if the handle or the knob disc is twisted by a strong force, the handle and the knob disc idle, after the handle is rotated reversely, the inserting plate, the pushing plate and the locking plate are reset in sequence under the action of the reset tension springs, and the pushing springs push the cross sliding plate to reset along with the sliding plate.

Further, the rivet on the cross sliding plate can be eliminated, and the alternative scheme is that a convex edge or an inclined surface is punched inwards at the position of the original rivet and extends inwards, and then the convex edge or the inclined surface penetrates through the corresponding long circular hole of the inserting plate and then contacts with the upper part of the inclined pushing surface of the pushing plate, so that the function of the rivet is the same as that of the rivet, the cost can be reduced, and the assembly links can be reduced.

In the scheme, the linkage shaft penetrates through the outside of the lock body to be assembled with the driving wheel, then the rotary motion is transmitted back into the lock body to drive the sawtooth wheel and the shifting wheel to rotate, and the code changing mechanism is arranged at the innermost side of the lock body, namely the outside of the lock body, so that the code changing operation is facilitated.

When the numbers are matched, the actual positions of the knob disc, the sawtooth 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 wheel to rotate to the position in the process of being inserted into the tooth grooves of the sawtooth wheel.

When the technology is started, the transmission conditions of short impact between the insertion lug and the disc part of the follow-up 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 first flange of the cam firstly prevents the sawtooth wheel from rotating during unlocking, then the contact between the follower wheel and the dial wheel is cut off, and then the contact or the impact (which is usually weak because the gap is small) is generated between the insertion lug and the disc of the follower wheel.

The key groove, the spring and the steel ball are arranged between the tail end of the linkage shaft and the driving wheel 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 disc is adjusted to the position of an initial password or the original password, 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 openings. 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 locking plate, the pushing plate, the cross sliding plate, the inserting plate, the wheel cover, the code changing wheel, the dial wheel, the sawtooth wheel and other parts can be 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.

The invention has the beneficial effects that: the lockset adopts a special structure of locking first, releasing second and unlocking last, and has the following characteristics while realizing the technical unlocking: 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 33.

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 latch plate schematic;

FIG. 5: a schematic diagram of an insert plate;

FIG. 6: a front view of the pushing plate;

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

FIG. 8: a cross slide front view;

FIG. 9: the right side view of FIG. 8;

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

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

FIG. 12: returning to the front view of the rotating shaft;

FIG. 13: the right side view of FIG. 12;

FIG. 14: a drive wheel schematic;

FIG. 15: a front view of the wheel cover;

FIG. 16: the right side view of FIG. 15;

FIG. 17: a code-changing position schematic diagram;

FIG. 18: a code wheel schematic diagram;

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

FIG. 20: a thumb wheel front view;

FIG. 21: the right side view of FIG. 20;

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

FIG. 23: the left side view of fig. 22;

FIG. 24: a front view of the cam mechanism;

FIG. 25: the left side view of FIG. 24;

FIG. 26: a schematic view of a drive shaft;

FIG. 27 is a schematic view showing: a circular truncated cone shaft schematic view;

FIG. 28: a circular truncated cone schematic view;

FIG. 29: the circular truncated cone is assembled with a circular truncated cone shaft;

FIG. 30: a front view of the cam;

FIG. 31: the left side view of fig. 30;

FIG. 32: the knob disc, the knob shaft and the outer panel of the lockset are assembled schematically;

FIG. 33: a schematic view of a knob disk.

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 disc, 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 third flange, 14, a circular truncated cone, 15, a circular truncated cone shaft, 16, a driving shaft, 17, a driving shaft flat shaft, 18, a driving shaft circular shaft, 19, a collision ball, 20, a collision ball spring, 21, a linkage shaft, 22, a key groove, 23, a reversing shaft, 24, an axial center through hole, 25, a guide shaft, 26, a sliding plate shaft, 27, a clamp spring groove, 28, a plug plate shaft, 29, a push plate shaft, 30, a driving wheel limiting shaft, 31, a lock plate shaft, 32, a serrated wheel, 33, 34, a shifting wheel, 35, a thimble, 36, a cone tip, 37, a code changing wheel, 39, 40, a driving wheel cover, 41, a central through hole, 42, a radial notch, 43: a code-changing screw hole, 44: a code-changing bolt, 45: a follower wheel, 46: a butt joint hole, 47: a follower opening, 48: a cross sliding plate, 49: a guide hole, 50: a follower wheel hole, 51: a rivet, 52: a pushing plate, 53: a pushing plate long hole, 54: an inclined pushing surface, 55: an inserting plate, 56: an inserting lug, 57: a locking plate, 58: a sharp tooth, 59: a convex angle, 60: a pushing spring and 61: a snap spring.

Detailed Description

As shown in fig. 1, 2 and 3, the pushing and releasing mechanical coded lock comprises a lock body 1, a buckle cover 4, a lock outer panel 5 and a handle, wherein the lock outer panel 5 is provided with the handle, 6 knob disks 6 which are independent from each other and 6 corresponding knob shafts 7. 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. 24 to 31, the cam mechanism includes a cam 8, a circular truncated cone 14, a circular truncated cone shaft 15, a driving shaft 16, collision beads 19 and collision bead springs 20, wherein 4 cylindrical collision bead slideways are radially arranged on the circular truncated cone 14 and uniformly distributed in the circumferential direction, 1 collision bead spring 20 and 1 collision bead 19 are respectively movably assembled in the collision bead slideways from inside to outside, the circular truncated cone 14 is movably assembled with an inner cavity of the cam 8, 4 stop through holes 9 are arranged between the inner cavity of the cam 8 and an 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 19, and a part of each collision bead 19 is embedded into the corresponding stop through hole 9 in a static state. The inner side end of the circular truncated cone shaft 15 is assembled with the circular truncated cone 14 and synchronously rotates, the middle of the circular truncated cone shaft 15 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 15 extends out of the lock body outer side plate 2, 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 15 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 16. As shown in fig. 2 and 3, the middle part of the driving shaft 16 is movably assembled with the shaft hole of the lock body inner side plate 3, the flat shaft at the inner side end of the driving shaft 16 is a driving shaft flat shaft 17, the circular shaft at the extreme end of the inner side of the driving shaft 16 is a driving shaft circular shaft 18, and the driving shaft flat shaft 17 and the driving shaft circular shaft 18 both extend out of the lock body inner side plate 3, namely enter the buckle cover 4 and are connected with the unlocking execution mechanism. The outer circular surface of the inner side of the cam 8 is provided with 3 arc-shaped slideways 10 with the same depth along the circumferential direction, the arc-shaped slideways are arranged along the axial direction of the cam 8, the left end surface of each arc-shaped slideway 10 is a flange, and the left end surface is provided with a first flange 11, a second flange 12 and a third flange 13 from inside to outside in sequence. When the cam 8 cannot rotate and the lever is strongly twisted, the circular truncated cone 14, the circular truncated cone shaft 15, and the lever idle relative to the cam 8.

As shown in fig. 32 and 33, 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 scales of numbers 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 21, 6 rotation shafts 23 and 4 guide shafts 25 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 two rows are bilaterally symmetrical in the vertical direction, 4 plates are arranged in the lock body in the direction parallel to the lock body, and a cross sliding plate 48, an insertion plate 55, a pushing plate 52 and a locking plate 57 are arranged in sequence from outside to inside. As shown in fig. 10, the outer end of each linkage shaft 21 is movably assembled with the shaft hole of the lock body outer side plate 2, the outermost end of each linkage shaft 21 is square and 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 21 located between the lock body outer side plate 2 and the lock body inner side plate 3 is in the shape of a stepped shaft, the outer part thereof is a thick shaft, the inner part thereof is a thin shaft, and the thin shaft is movably assembled with the shaft center through hole 24 of the return shaft 23. As shown in fig. 12 and 13, the outer end surface of the reversing shaft 23 is movably contacted with the inner end surface of the thick shaft of the linkage shaft 21, and the outer part of the outer end of the reversing shaft 23 is a flat shaft and is simultaneously assembled with the slotted holes of the sawtooth wheel 32 and the thumb wheel 34 to synchronously rotate. The sawtooth wheel 32 is located inside the thumb wheel 34 and is in movable contact with the lock body inside side plate 3, as shown in fig. 19, the sawtooth wheel 32 is provided with 10 saw teeth 33, which are shaped as isosceles triangles. As shown in fig. 20 and 21, 1 thimble 35 is axially mounted on each of the left and right sides of the oblong hole of the dial 34, and the portion of each thimble 35 located outside the dial 34 is a conical tip 36. The excircle surface of the inner side end of the return shaft 23 is movably assembled with the shaft hole of the lock body inner side plate 3, the inner side end of the return shaft 23 also extends out of the lock body inner side plate 3, and the extending part is also a flat shaft and is assembled with the long round hole of the code wheel 37 to synchronously rotate. As shown in fig. 18, the outer side surface of the code wheel 37 is movably contacted with the lock body inner side plate 3, and 10 code changing holes 38 are axially arranged at the edge of the code wheel 37 and are uniformly distributed along the circumferential direction of the code wheel 37. The thin shaft of each linkage shaft 21 passes through the shaft center through hole 24 of the return rotating shaft 23 and then extends out of the lock body inner side plate 3, and is movably assembled with the driving wheel 39 and the central through hole 41 of the wheel cover 40, wherein the outer side surface of the driving wheel 39 is movably contacted with the inner side surface of the code changing wheel 37. As shown in fig. 14, directly below the central through hole 41 of the drive wheel 39 are 1 radial slits 42. As shown in fig. 15 and 16, the wheel cover 40 is shaped like a bucket and is buckled outside the driving wheel 39, and 1 spring and 1 steel ball are arranged in a space formed by the inner side surface of the wheel cover 40, the inner side surface of the code wheel 37 and the radial gap 42. As shown in fig. 10, 1 key slot 22 is arranged at the corresponding position of the inner end of the linkage shaft 21, the steel ball is embedded into a part of the key slot 22 under the pushing of the spring in a static state, the linkage shaft 21 drives the driving wheel 39 to rotate through the key slot 22 and the steel ball when rotating, and when the resistance borne by the driving wheel 39 exceeds the limit value, the linkage shaft 21 idles. 1 code-changing screw hole 43 is arranged right above the central through hole 41 of the driving wheel 39, 1 through hole is arranged on the wheel cover 40 corresponding to the code-changing screw hole, 1 code-changing bolt 44 passes through the through hole and then is assembled with the code-changing screw hole 43, the outer end of the code-changing bolt 44 passes through the code-changing screw hole 43 and then is inserted into 1 code-changing hole 38 of the code-changing wheel 37, and the different code-changing holes are inserted to represent different unlocking codes. The two ends of each guide shaft 25 are respectively assembled with the corresponding shaft holes of the lock body outer side plate 2 and the lock body inner side plate 3, as shown in fig. 11, the middle part of each guide shaft 25 is in a stepped shaft shape, and the guide shafts are sequentially provided with a sliding plate shaft 26, a clamp spring groove 27, a plug plate shaft 28, a push plate shaft 29, a limiting shaft 30 and a lock plate shaft 31 from outside to inside, wherein the diameters of the sliding plate shaft 26, the plug plate shaft 28 and the lock plate shaft 31 are the same and smaller than the diameter of the push plate shaft 29, the diameter of the push plate shaft 29 is smaller than the diameter of the limiting shaft 30, and 1 clamp spring 61 is assembled in the clamp spring groove 27. As shown in fig. 8 and 9, the cross slide plate 48 is correspondingly provided with 4 guide holes 49, which are movably fitted with the slide plate shafts 26 of the guide shafts 25, respectively. Each slide shaft 26 is provided with 1 push spring 60, the outer end of the push spring 60 contacts with the lock body outer plate 2, the inner end of the push spring contacts with the cross slide plate 48, and the inner side surface of the cross slide plate 48 contacts with the snap spring 61 on the guide shaft 25. The cross slide plate 48 is additionally provided with 6 through holes, i.e., follower wheel holes 50, for mounting the follower wheels 45. As shown in fig. 22 and 23, an axial center through hole 24 is also provided on the axial center line of the follower wheel 45, the axial center through hole 24 is used for the thick shaft of the linkage shaft 21 to pass through, and a certain gap is reserved between the thick shaft and the thick shaft, the outer part of the follower wheel 45 is in a step shaft shape, wherein, the outer circular surface of the outer end of the follower wheel 45 is movably assembled with a follower wheel hole 50, after the follower wheel 45 passes through the follower wheel hole 50, the outer end head of the follower wheel 45 is provided with a clamp spring groove and is assembled with 1 clamp spring, the inner end of the follower wheel 45 is in a disc shape, the left side and the right side of the disc are respectively provided with 1 axial through hole, namely, a butt joint hole 46, and the lower part of the disc is provided with 1 gap, namely, a follower opening 47. In a static state, the inner end face of the follower wheel 45 is movably contacted with the outer end face of the thumb wheel 34, and the two conical tips 36 of the thumb wheel 34 are respectively and movably inserted into the abutting holes 46 of the follower wheel 45, i.e. the thumb wheel 34 can drive the follower wheel 45 to rotate synchronously.

As shown in fig. 5, the insertion plate 55 is in the shape of two adjacent "out" characters, and is provided with 4 oblong holes and 6 insertion lugs 56, the insertion plate 55 is movably assembled with the insertion plate shafts 28 of the guide shafts 25 through the 4 oblong holes, at this time, the insertion plate 55 and the cross sliding plate 48 are separated from each other through the snap spring 61 on the guide shaft 25, each insertion lug 56 is aligned to the right below the follower wheel 45, when the password is correct, each follower opening 47 is located right below the follower wheel 45, each insertion lug 56 can be inserted into the corresponding follower opening 47 at the same time, and the insertion plate 55 can move upward for a certain distance.

As shown in fig. 1, 2, 3, 6, and 7, the pushing plate 52 is correspondingly provided with 4 vertically long holes, i.e., pushing plate long holes 53, and movably assembled with the pushing plate shaft 29 of the guide shaft 25, respectively, the lower portion of each pushing plate long hole 53 is provided with 1 inwardly inclined pushing surface 54, respectively, the middle upper portion and the middle lower portion of the pushing plate 52 are provided with 1U-shaped opening and 1 oblong hole, respectively, or both of them are rectangular, the thumb wheel 34 and the follower wheel 45 are located therein, and when the pushing plate 52 vertically reciprocates, a certain gap is always kept between the thumb wheel 34 and the follower wheel 45.

The cross sliding plate 48 is also provided with 1 through hole right below each guide hole 49, and is fixedly provided with 1 rivet 51, the end of the rivet 51 is hemispherical, the rivet 51 is perpendicular to the cross sliding plate 48 and extends inwards, in a static state, the rivet 51 passes through the long round hole of the inserting plate 55 and then enters the long hole 53 of the push plate, and is in movable contact with the upper part of the inclined pushing surface 54, and when the push plate 52 moves upwards, the inclined pushing surface 54 pushes the rivet 51, the cross sliding plate 48 and the follow-up wheel 45 to slide outwards for a certain distance along the guide shaft 25.

As shown in fig. 4, the shape of the locking plate 57 is like a "common" shape, the lower two "points" are removed, 4 oblong holes and 6 sharp teeth 58 are correspondingly arranged on the locking plate 57, wherein the locking plate 57 is movably assembled with the locking plate shaft 31 of the guide shaft 25 through the 4 oblong holes, each sharp tooth 58 is an isosceles triangle and is respectively aligned to the right lower part of the serrated wheel 32, and after the locking plate 57 moves upwards, each sharp tooth 58 is respectively inserted into the tooth socket of the corresponding serrated wheel 32 to prevent the linkage shaft 21 on which each serrated wheel 32 is located from rotating. As shown in fig. 4, 5 and 6, 1 downward protruding convex corner 59 is further provided directly below the locking plate 57, the pushing plate 52 and the inserting plate 55, the left side of each convex corner 59 is an inclined surface inclined toward the lower right, each convex corner 59 is located in each arc-shaped slideway 10 of the cam 8 and aligned with each flange in a static state, the lower left of the locking plate 57, the pushing plate 52 and the inserting plate 55 is further connected with the upper end of a corresponding return tension spring, and the lower end of each return tension spring is connected with the lower portion 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 when the knob is pressed down to enable the cam 8 to rotate forwards, the first flange 11 of the cam is firstly contacted with the convex angle 59 of the locking plate 57, so that the locking plate 57 is pushed to move upwards, each sharp tooth 58 is inserted into 1 tooth groove of the corresponding sawtooth wheel 32, and the sawtooth wheel 32 can not rotate any more; when the first flange 11 is separated from the convex angle 59 of the locking plate 57, the second flange 12 starts to contact the convex angle 59 of the pushing plate 52, and the pushing plate 52 moves upward, so that the rivet 51, the cross sliding plate 48 and the follower wheel 45 move outward for a certain distance, and the butt hole 46 of the follower wheel 45 and the conical tip 36 on the thumb wheel 34 generate a certain gap, namely lose contact; when the second flange 12 is separated from the convex angle 59 of the pushing plate 52, the third flange 13 starts to contact with the convex angle 59 of the inserting plate 55, the inserting plate 55 moves upwards, each inserting lug 56 is simultaneously inserted into the corresponding follow-up opening 47, the inserting plate 55 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 follow-up opening 47 is not positioned right below the follow-up wheel 45, the inserting plate 55 is prevented from moving upwards, further the cam 8 is prevented from continuing to rotate, and the lock 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 55, the pushing plate 52 and the locking plate 57 are reset in sequence under the action of the reset tension springs, and the pushing spring 60 pushes the cross sliding plate 48 to reset along with the reset.

Further, the rivet 51 on the cross slide plate 48 can be eliminated, and alternatively, a rib or an inclined surface is punched inwards at the position of the original rivet, extends inwards, passes through the corresponding long circular hole of the inserting plate 55 and then contacts with the upper part of the inclined pushing surface 54, and the function of the rivet is the same as that of the rivet 51, so that the cost can be reduced, and the assembly links can be reduced.

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. 32 and 33, each knob disk 6 is adjusted 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 56 are inserted into the follow-up openings 47. As shown in fig. 17 and 18, the transcoding bolt 44 is withdrawn from the transcoding screw hole 43 by a certain length, the knob tray 6 is turned to the new code position, and the transcoding bolt 44 is screwed again and inserted into the transcoding hole 38. 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. 17, to facilitate the code changing operation, 10 numeric scales from 0 to 9 may be marked around the wheel cover 40 and sorted from small to large in the counterclockwise direction.

Claims (2)

1. A pushing and releasing 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, the knob discs are provided with 10 digital scales which are uniformly distributed and are from 0 to 9, the knob discs 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 lock body is used for assembling an unlocking execution mechanism, unlocking and 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 actuating mechanism unblanks, be equipped with the arc slide of 3 co-depths 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, from inside to outside be first flange in proper order, second flange and third flange, when the cam can not rotate and the powerful handle that twists reverse, the round platform, round platform axle and the relative cam of handle idle, characterized by: the lock body is internally provided with 6 linkage shafts, 6 return rotating shafts and 4 guide shafts in a vertical lock body direction, the arrangement mode of the lock body is that the lock body is divided into an upper row and a lower row in the horizontal direction, the lock body is bilaterally symmetrical in the vertical direction, 4 plates are arranged in the lock body in a direction parallel to the lock body, a cross sliding plate, a plug plate, a pushing plate 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 outermost side end of each linkage shaft is a square body and extends out of the outer side plate of the lock body, the linkage shafts are movably assembled and synchronously rotate with a square blind hole at the inner side end of a knob shaft, the part of each linkage shaft, which is positioned between the outer side plate of the lock body and the inner side plate of the lock body, is in a step shaft shape, the outer side part of each linkage shaft is a thick shaft, the inner side part of each thin shaft is movably assembled with a shaft center through hole of the return rotating shaft, the outer side end of the return rotating shaft is movably contacted with the inner side end of the thick shaft, the outer side end of the return rotating shaft is a flat shaft and is simultaneously contacted with a saw-toothed wheel, The long circular hole of the dial wheel is assembled and synchronously rotated, the serrated wheel is positioned at the inner side of the dial wheel and is movably contacted with the inner side plate of the lock body, the serrated wheel is provided with 10 sawteeth, the shape of the sawteeth is an isosceles triangle, simultaneously, 2 opposite tooth roots of the serrated wheel are positioned on the central line of the length direction of the long circular hole, 1 thimble is respectively and fixedly assembled at the left side and the right side of the long circular hole of the dial wheel along the axial direction, the parts of the two thimbles penetrating through the outer side of the dial wheel are conical tips, the outer circle surface of the inner side end of the rotating shaft is movably assembled with the shaft hole of the inner side plate of the lock body, the inner end of the rotating shaft also extends out of the inner side plate of the lock body, the extending part is also a flat shaft and is assembled with the long circular hole of the code-changing wheel and synchronously rotated, the outer side surface of the code-changing wheel is movably contacted with the inner side plate of the lock body, the edge of the code-changing wheel is provided with 10 code holes along the axial direction and is uniformly distributed along the circumferential direction of the code-changing wheel, meanwhile, 2 opposite code changing holes of the code changing wheel are positioned on the central line of the long circular hole in the length direction, a thin shaft of each linkage shaft penetrates through a shaft center through hole of the return rotating shaft and then extends out of an inner side plate of the lock body and is movably assembled with a center through hole of the driving wheel and a wheel cover, wherein the outer side surface of the driving wheel is movably contacted with the inner side surface of the code changing wheel, 1 radial gap is arranged right below the center through hole of the driving wheel, the wheel cover is in a bucket shape and is buckled outside the driving wheel from inside to outside, 1 spring and 1 steel ball are arranged in a space formed by the inner side surface of the wheel cover, the inner side surface of the code changing wheel and the radial gap, 1 key groove is arranged at the corresponding position of the inner side end of the linkage shaft, the steel ball is embedded into one part of the key groove under the pushing of the spring in a static state, the linkage shaft drives the driving wheel to rotate through the steel ball and the steel ball when rotating, and when the resistance borne by the driving wheel exceeds the limit value, the universal driving wheel is idle, 1 code-changing screw hole is arranged right above a central through hole of the driving wheel, 1 through hole is arranged on the wheel cover corresponding to the code-changing screw hole, 1 code-changing bolt penetrates through the through hole and then is assembled with the code-changing screw hole, the outer end of the code-changing bolt penetrates through the code-changing screw hole and then 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, two ends of each guide shaft are respectively assembled with 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 is sequentially provided with a sliding plate shaft, a clamp spring groove, a inserting plate shaft, a pushing plate shaft, a limiting shaft and a locking plate shaft from outside to inside, wherein the diameters of the sliding plate shaft, the inserting plate shaft and the locking plate shaft are the same and are smaller than that of the pushing plate shaft, the diameter of the pushing plate shaft is smaller than that of the limiting shaft, 1 clamp spring is assembled in the clamp spring groove, 4 guide holes are correspondingly arranged on the transverse sliding plate, the outer side end of the push spring is contacted with the outer side plate of the lock body, the inner side end of the push spring is contacted with the cross sliding plate, the inner side surface of the cross sliding plate is contacted with the clamp spring on the guide shaft, the cross sliding plate is also additionally provided with 6 through holes, namely follower wheel holes, for assembling the follower wheel, the axis line of the follower wheel is also provided with an axis through hole, the axis through hole is used for a thick shaft of the linkage shaft to pass through, a certain gap is reserved between the thick shaft and the cross sliding plate, the outer part of the follower wheel is in a step shaft shape, wherein the outer circular surface of the outer side end of the follower wheel is movably assembled with the follower wheel holes, the outer side end head of the follower wheel after passing through the follower wheel holes is provided with a clamp spring groove and is assembled with 1 clamp spring, the inner side end of the follower wheel is a circular disc, the left side and the right side of the circular disc are respectively provided with 1 axial through hole, namely a butt joint hole, and the lower part of the circular disc is provided with 1 gap, namely a follower opening, in a static state, the inner end face of a disc of a follower wheel is in movable contact with the outer end face of a shifting wheel, two conical tips of the shifting wheel are respectively and movably inserted into butt-joint holes of the follower wheel, namely, the shifting wheel can drive the follower wheel to synchronously rotate, an inserting plate is in the shape of two adjacent Chinese characters, 4 long circular holes and 6 inserting lugs are arranged on the inserting plate, the inserting plate is respectively and movably assembled with inserting plate shafts of all guide shafts through the 4 long circular holes, at the moment, the inserting plate and a transverse sliding plate are mutually isolated through clamp springs on the guide shafts, each inserting lug is aligned to the position under the follower wheel, when a password is correct, each follow-up opening is positioned under the follower wheel, each inserting lug can be simultaneously inserted into the corresponding follow-up opening, further, the inserting plate can move upwards for a certain distance, 4 long vertical long holes, namely long hole push plates are correspondingly arranged on the push plate and are respectively and movably assembled with the push plate shafts of the guide shafts, the lower part of each push plate long hole is respectively provided with 1 inclined push surface which inclines inwards, the middle upper part and the middle lower part of the push plate are respectively provided with 1U-shaped opening and 1 long round hole or both are rectangular, the poking wheel and the follower wheel are positioned in the U-shaped openings, a certain gap is always kept between the poking wheel and the follower wheel when the push plate vertically reciprocates, 1 through hole is respectively arranged right below each guide hole on the cross sliding plate, and 1 rivet is fixedly assembled, the end of the rivet is hemispherical, the rivet is perpendicular to the cross sliding plate and extends towards the inner side, in a static state, the rivet penetrates through the long round hole of the inserting plate and enters the push plate long hole on the push plate and is movably contacted with the upper part of the inclined push surface of the push plate, when the push plate moves upwards, the inclined push surface pushes the rivet and the cross sliding plate outwards along the guide shaft for a certain distance, the shape of the locking plate is like two ' common ' point ' under the locking plate, the lock is characterized in that the lock plate is correspondingly provided with 4 long circular holes and 6 sharp teeth, the lock plate is movably assembled with a lock 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 with the position under the sawtooth wheel, after the lock plate moves upwards, each sharp tooth is respectively inserted into a tooth socket of a sawtooth corresponding to the sawtooth wheel to prevent a linkage shaft where each sawtooth wheel is located from rotating, 1 convex corner protruding downwards is further arranged under the lock plate, the pushing plate and the inserting plate, the left side of each convex corner is an inclined plane inclining towards 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 with each flange, the left lower sides of the lock plate, the pushing plate and the inserting plate are respectively connected with the upper end of a corresponding reset tension spring, the lower end of each reset tension spring is connected with the lower part of the lock body, each knob disc rotates to the correct number position when the lock is unlocked, and each knob disc presses down to press the lock handle, In the forward rotation process of the cam, a first flange of the cam is firstly contacted with a convex corner of the locking plate to further push the locking plate to move upwards, so that each sharp tooth is inserted into 1 tooth socket of the corresponding serrated wheel, the serrated wheel can not rotate any more, when the first flange is separated from the convex corner of the locking plate, a second flange is contacted with the convex corner of the pushing plate, the pushing plate is moved upwards, so that the rivet, the cross sliding plate and the follow-up wheel move outwards for a certain distance, a certain gap is formed between a butt joint hole of the follow-up wheel and a conical tip on the thumb wheel, namely the contact is lost, when the second flange is separated from the convex corner of the pushing plate, a third flange is contacted with the convex corner of the plug board, the plug board moves upwards, each plug lug is simultaneously inserted into the corresponding follow-up opening, the plug board moves upwards to the end point, the cam can continue to rotate, so as to drive the unlocking execution mechanism to operate and open the lockset, if the password is incorrect, at least 1 follow-up opening is not positioned under the follow-up wheel, the inserting plate is prevented from moving upwards, the cam is further prevented from continuing to rotate, the lockset cannot be opened, if the handle or the knob disc is twisted by a strong force, the handle and the knob disc idle, after the handle is rotated reversely, the inserting plate, the pushing plate and the locking plate are reset in sequence under the action of the reset tension springs, and the pushing springs push the cross sliding plate to reset along with the sliding plate.

2. The push-to-disengage mechanical combination lock of claim 1, wherein: the rivet on the cross sliding plate can be cancelled, a convex edge or an inclined plane is punched inwards at the position of the original rivet, the convex edge or the inclined plane extends inwards, the convex edge or the inclined plane passes through the corresponding long round hole of the inserting plate and then contacts with the upper part of the inclined pushing surface of the pushing plate, and the performance of the lockset is unchanged.

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