CN111395870B

CN111395870B - Incomplete gear drive type mechanical anti-theft lock

Info

Publication number: CN111395870B
Application number: CN202010177605.3A
Authority: CN
Inventors: 宋在勇; 吕雪寒
Original assignee: Beihua University
Current assignee: Beihua University
Priority date: 2020-03-13
Filing date: 2020-03-13
Publication date: 2021-03-23
Anticipated expiration: 2040-03-13
Also published as: CN111395870A

Abstract

A key of the mechanical anti-theft lock is formed by connecting a plurality of short-tooth pinions with the same parameters in series, wherein each pinion is an incomplete gear or a complete gear or has zero teeth number and is respectively meshed with a straight rack on each sliding plate. After the key is rotated for one circle, the key drives each sliding plate to run for different distances, then the handle drives the cam to firstly push the locking plate to be inserted into the sawteeth of each sliding plate, each sliding plate can not move any more, the cam pushes the unlocking insertion plate to be inserted into the rectangular opening of each sliding plate, and the cam continues to rotate to unlock. The key is incorrect, and the locking plate still blocks each slide and can not remove earlier, but unblanks the picture peg and can not insert in the rectangle opening, prevents the cam and continues to rotate, and the tool to lock can not open. If the handle is twisted by a strong force, the handle idles. The locking is completed without a key and the lifting of the handle is reversed. The lockset has the characteristics of simple structure, low manufacturing cost, easy installation, technical opening prevention, damage opening prevention, large key amount, stability, durability and the like.

Description

Incomplete gear drive type mechanical anti-theft lock

Technical Field

The invention relates to the field of mechanical anti-theft locks, in particular to an incomplete gear driven type mechanical anti-theft lock.

Background

At present, the common mechanical anti-theft locks in the prior art mainly include a pin tumbler lock, a blade lock and a mixed type anti-theft lock of the pin tumbler lock and the blade lock. Wherein, the spring lock is divided into common single-side tooth patterns (commonly called as a straight lock), double-side tooth patterns, cross tooth patterns, single-row or double-row round pits and the like according to different structures; one or two snake-shaped bent grooves are formed in the key corresponding to the blade lock; the key of the mixed type anti-theft lock is provided with a snakelike bent groove and a pit.

The main performances of the mechanical anti-theft lock are represented in the following five aspects: 1. anti-technical opening performance; 2. the anti-damage performance comprises a drilling-proof function and a forced opening tool damage-proof function; 3. the amount of keys actually used; 4. stability; 5. the operation is convenient. Only the anti-theft lock with the five performance characteristics is the real anti-theft lock, so that the requirements of users can be really met, the users are high in pillow and careless and can use the anti-theft lock without worry, and otherwise, potential safety hazards exist. In fact, none of the existing mechanical anti-theft locks in the market has the performance of the above five aspects at the same time.

The highest level in the 'GA/T73-2015 national standard' of the mechanical anti-theft lock is a 'C-level' lock, and in the aspect of key amount, the pin tumbler lock is not less than 3 ten thousand (theoretical value), and the blade lock is not less than 1 ten thousand. The mutual opening rate is not more than one ten-thousandth; the technology-opening-preventing time, the 'C-level' lock is not less than 10 minutes; the damage-proof time, the "C class" lock is not less than 30 minutes. All indexes of the B-level lock are lower than the standard, and the A-level lock is lower. The technical opening modes for the class A lock, which are well known at present, comprise single-hook unlocking, tinfoil unlocking, bump key unlocking, universal key unlocking and the like, some locks even reach second opening, and the locks are more fragile in the aspect of damage resistance, so that the national requirement is limited in use. The former national standard GA/T73-94 only has a class A anti-theft lock and a class B anti-theft lock, but does not have a class C anti-theft lock, so that the super class B anti-theft lock in the market is self-identified by enterprises before the release of the new national standard, the anti-technical unlocking performance is better, but the problems of 'anti-destruction performance' or 'insufficient key amount' and the like are mostly avoided. For example, the blade lock has a lower key amount, and only needs to add the marble to form a hybrid anti-theft lock, so that the key amount is increased, the anti-technical opening performance is enhanced, but the stability is reduced, and the anti-damage performance is reduced, because the space of the lock cylinder is limited, and the size of related parts is smaller.

In order to overcome the defects and hidden troubles of the mechanical anti-theft lock, a new locking principle is developed for the 'lock cylinder fixed cross mechanical anti-theft lock' (ZL201410020215. X), the problems are well solved, and the mechanical anti-theft lock is mainly characterized in that: the technology cannot unlock the lock; the lock core is fixed and positioned in the lock body in the door leaf, and is protected by the anti-prying plate and the anti-drilling sheet, so that the anti-prying anti-drilling anti-theft lock has the function of preventing the damage of a forced opening tool and the anti-drilling function which are not possessed by the common anti-theft lock; the key is not rotated, only inserted and pulled, and is unlocked by adopting a pressing handle, and the handle can idle due to overload protection; the lock has no tiny parts, and the performance of the lock is stable and reliable; most of the marbles are steel balls, so the operation is quick and labor-saving.

Along with the technical development, a plurality of patent products taking a lock cylinder fixed type cross mechanical anti-theft lock as a core technology in the later stage comprise a lock cylinder fixed type cross mechanical anti-theft lock matched with a fingerprint lock (ZL 201610990489.0), a cam mechanism of the fingerprint lock (ZL 201611045195.7), a double-insertion type anti-theft door and an externally-hung type locking device (ZL201610129609.8), a rotating ring forced resetting device of the anti-theft lock (ZL201710390280.5), a cam mechanism and a rotating ring forced resetting device of the fingerprint lock (ZL 201710435512.4), a locking handle type automatic resetting and idling device (ZL 201710393215.8), a single clutch cam mechanism of the fingerprint lock (ZL201810363492.9), a downward pressing type assembling tool of a cam mechanism of the anti-theft lock (application number 201910159029.7), a lock cylinder fixed type mechanical anti-theft lock for a safety box (application number 201910349515.5), a lock cylinder fixed type motor driven clutch intelligent anti-theft lock for the safety box (application number 201910349180.7) and the like, the technical expansion of the 'lock cylinder fixed cross mechanical anti-theft lock' is continuously expanded as a matched design, but a certain problem still exists, and mainly in a lock cylinder mechanism serving as a core component, 2 rotating rings are arranged on the periphery of a lock cylinder, 24 pin holes which are in one-to-one correspondence are formed in the lock cylinder and the rotating rings, so that the requirement on machining precision is high, the manufacturing cost is high, and the lock cylinder fixed cross mechanical anti-theft lock is suitable for being used in occasions with strict anti-theft performance requirements.

Disclosure of Invention

In order to overcome the defects of the mechanical anti-theft lock in the prior art, the invention provides an incomplete gear drive type mechanical anti-theft lock, which mainly adopts a brand-new control mechanism to replace the lock core mechanism in the patent, and a key hole and a handle rotating shaft of the incomplete gear drive type mechanical anti-theft lock are on the same vertical line or the same horizontal line. The key is formed by connecting a plurality of short-tooth pinions with the same parameters in series, but a certain pinion is a complete gear or an incomplete gear or has zero teeth, and the arrangement sequence of the pinions with different teeth is randomly arranged, so that different keys are formed, each pinion is respectively meshed with a straight rack on each sliding plate, each sliding plate is also provided with sawteeth and rectangular openings, the key rotates for a circle, each sliding plate runs at a distance of different multiples of tooth pitch, in the process of pressing down a handle to unlock, the cam firstly pushes a clamping strip of a locking plate to be inserted into the sawteeth of the sliding plate, so that each sliding plate can not move any more, and then the cam pushes an unlocking plugboard to run, if the key is correct, the rectangular openings of each sliding plate can be transversely arranged in a straight line, the inserting strip of the unlocking plugboard can be inserted into the rectangular openings, and; if the key is incorrect, the cam still can push the clamping strip of the locking plate to be inserted into the sawteeth of the sliding plates firstly, each sliding plate can not move any more, but the rectangular openings of the sliding plates can not form a straight line, the inserting strip can not be inserted into the rectangular openings, the cam can not rotate continuously, and the lockset can not be unlocked. If the handle is twisted by a strong force, the handle idles. As the core component of the lock control mechanism, components such as the sliding plate and the like can be processed and manufactured in a stamping mode, the production cost can be greatly reduced, the assembly is simple and easy to implement, and meanwhile, the lock can also be ensured to have the performance characteristics of technical opening prevention, damage opening prevention, large key amount, stability, durability and the like.

The invention adopts the following technical scheme:

an incomplete gear drive type mechanical anti-theft lock comprises an outer side plate, a partition plate, an inner side plate and a surrounding plate, wherein a rectangular cavity between the outer side plate and the partition plate is an outer cavity, a rectangular cavity between the partition plate and the inner side plate is an inner cavity, the side of the outer side plate, which is positioned outside the lock body, is the outer side of the lock body, the side of the inner side plate, which is positioned outside the lock body, is the inner side of the lock body, an unlocking control mechanism is assembled in the outer cavity and comprises a cam mechanism, the cam mechanism is assembled by a cam, a turntable, a collision ball spring, an inner connecting shaft and an outer connecting shaft, wherein two adjacent arc-shaped grooves are arranged on the cam along the circumferential direction, one end surface of each arc-shaped groove is a first flange and a second flange, the two flanges are staggered by a certain angle, a reinforcing plate is arranged on the inner, the outer side of the lock body is contacted with the reinforcing plate, the square body of the outer side end of the outer connecting shaft is positioned outside the outer side of the lock body, penetrates through the reinforcing plate and the outer panel of the door leaf and is movably assembled and synchronously rotated with the handle rotating shaft, the square body of the inner side end of the outer connecting shaft is assembled and synchronously rotated with the turntable, the turntable is assembled and synchronously rotated with the inner circular surface of the cam through the collision bead and the collision bead spring, when the resistance force borne by the cam does not exceed the limit value, the turntable can drive the cam to synchronously rotate, when the cam cannot rotate, the turntable can idle against the thrust force of the collision bead spring, the square hole in the inner side of the cam is assembled and synchronously rotated with the square shaft of the outer side end of the inner connecting shaft, the inner side end of the inner connecting shaft is provided with a flat shaft and a round shaft, wherein the round shaft is positioned at the end, penetrates through the partition plate and is positioned in the inner cavity, the inner side surfaces, The lock comprises a swing rod, an indoor driving disk, a main lock bolt pulling plate, a front pushing pin, a right-angle rotating plate, a rear pushing pin, a lock bolt driving shaft, a lock bolt main driving disk and the outer side part of the indoor driving shaft, wherein an unlocking executing mechanism assembled on the inner side surface of a lock body comprises a main lock bolt, an indoor driving plate, a lock bolt auxiliary driving disk, a lock bolt connecting plate, a lock bolt and the inner side part of the indoor driving shaft, wherein a flat shaft of an inner connecting shaft is assembled with the outdoor driving disk and synchronously rotates, a round shaft at the end head of the inner connecting shaft is movably assembled with the swing rod, an unlocking push handle and an locking push handle on the outdoor driving disk are respectively positioned on the two sides of the swing rod and are used for pushing the swing rod to swing in the positive and negative directions, the flat shaft at the end head of the outer side of the indoor driving shaft is assembled, an indoor driving shaft penetrates through an inner side plate inwards and then is assembled with an indoor driving plate and synchronously rotates, an inner end of the indoor driving shaft is movably assembled with an indoor handle or a knob and synchronously rotates, an outer end of the lock bolt driving shaft is assembled with a lock bolt main driving plate and synchronously rotates, an inner end of the lock bolt driving shaft penetrates through the inner side plate and then is assembled with a lock bolt auxiliary driving plate and synchronously rotates, when the handle is pressed down, namely the handle rotates forwards, the handle drives an outer connecting shaft to rotate, the outer connecting shaft drives a rotating disc to rotate, the rotating disc drives a cam to rotate, the cam drives an inner connecting shaft to rotate and further drives an outdoor driving plate to rotate, an unlocking push handle on the outdoor driving plate pushes a swing rod to swing forwards, an end of the swing rod pushes a main lock bolt pull plate to move rightwards, an inner end of a rear push pin on the main lock bolt pull plate pulls, the two right-angle rotating plates respectively drive the top and bottom rods to vertically move, the protruding end on the outdoor driving disk pushes the main spring bolt driving disk to rotate and further drives the spring bolt driving shaft to rotate, the auxiliary spring bolt driving disk follows to rotate, the auxiliary spring bolt driving disk then pulls the spring bolt connecting plate and the spring bolt to move rightwards, thereby completing outdoor unlocking, when the indoor handle or knob rotates forwards, the indoor driving shaft is driven to rotate forwards and further drives the indoor driving disk to rotate forwards, the unlocking push handle on the indoor driving disk pushes the swing rod to swing forwards, the swing rod then pushes the main spring bolt pulling plate to move rightwards, thereby completing unlocking movement of the main spring bolt and the top and bottom rods, in the later stage of the forward rotation of the indoor driving shaft, the auxiliary spring bolt driving disk is pushed to rotate by the indoor driving sheet and further pulls the spring bolt to move rightwards to unlock the, and then make the locking push handle on the outdoor driving-disc promote the pendulum rod reverse swing, the pendulum rod promotes main set bar arm-tie and removes left and accomplish and lock again, when indoor locking, indoor handle or knob drive indoor driving-disc antiport through indoor drive shaft, the locking push handle on the indoor driving-disc promotes the pendulum rod reverse swing and accomplishes and lock characterized by: the unlocking control mechanism of the assembly in the outer cavity of lock body still contains key actuating mechanism and card hinders the mechanism, contain 1 pipe among the key actuating mechanism, a plurality of slide and key, the through-hole of pipe is the key hole promptly, be used for the key to insert wherein, this key hole is located cam mechanism center under, the outside end of pipe is step axle shape, the through-hole assembly of the outer panel of this step axle and lock body stretches out outside the lock body lateral surface, pass the reinforcing plate again, behind the door leaf outer panel, the outer terminal surface parallel and level of step axle and door leaf outer panel, the inboard end and the fixed assembly of baffle of pipe, the upper portion that is located the outer cavity of pipe is equipped with 1 rectangle slot hole, the top of pipe is equipped with a plurality of slide, all slides divide into slide A according to the structural shape altogether, slide B two kinds of type, each slide is from outside assembly order in: assembling 1 sliding plate A, 1 sliding plate B, 1 sliding plate A and the like, namely, the sliding plates A and the sliding plates B are mutually spaced and have the same interval, the lower side of the middle part of each sliding plate is in a straight rack shape, the part is a straight rack, each straight rack is embedded into a rectangular long hole of a circular tube, the upper side of the middle part of each sliding plate is provided with a plurality of sawteeth, the shape of the sawteeth is isosceles triangle, the interval of the sawteeth is the same as the tooth pitch of the straight rack, the random position of the upper part of the left side of each sliding plate is provided with 1 rectangular opening with the same size, the left side and the right side of an outer cavity are respectively assembled with 1 sliding shaft A and 1 sliding shaft B, the left side and the right side of each sliding plate are respectively provided with 1 long round hole and are respectively movably assembled with the sliding shaft A and the sliding shaft B, namely, the sliding plates A and the sliding plates B can horizontally reciprocate for a certain distance, and are arranged, 1 thin gasket is movably assembled between the sliding plates, 1 thick gasket is movably assembled between the outer side plate and the sliding plate on the outermost side and between the partition plate and the sliding plate on the innermost side, the left side and the right side of the lower part of the outer cavity are respectively provided with 1 spring connecting post A and 1 spring connecting post B, the lower part of the left side of the sliding plate A is provided with a downward protruding lug, the lower part of the right side of the sliding plate B is also provided with a downward protruding lug, each lug is provided with a through hole and is respectively connected with the right end of a sliding plate tension spring, the left end of each sliding plate tension spring is respectively connected with the spring connecting post A and the spring connecting post B, the key is formed by serially connecting a plurality of pinions with the same parameters, each pinion is a short-tooth gear, the teeth of each pinion are aligned one by one along the axial direction, the space of each pinion is the same as that of each sliding plate, but a certain pinion is a complete gear or an incomplete gear or the number of teeth is zero, the arrangement sequence of the pinions is also randomly arranged and corresponds to the position of the rectangular opening of the corresponding sliding plate, thereby forming different keys, simultaneously, no matter how many teeth exist in each incomplete gear, the part with teeth or the part without teeth is continuous, and the position right above the axial direction of the key is taken as a starting point, the parts from the teeth to the no teeth are arranged according to the clockwise direction, after the key is rotated clockwise for one circle correctly, the running distance of each sliding plate is equal to the product of the number of teeth and the tooth pitch of the pinion on the corresponding key, at the moment, each rectangular opening on each sliding plate is arranged in a straight line, the blocking mechanism is positioned between each sliding plate and the cam, the blocking mechanism comprises 1 locking plate and 1 unlocking inserting plate, the right side of the outer cavity is also provided with 1 rotating shaft, and the right ends of the locking plate and the unlocking inserting plate are movably, the length of the unlocking insertion plate is greater than that of the locking plate, the unlocking insertion plate is positioned above the locking plate, a clamping strip is vertically arranged at the left end of the locking plate downwards, the lower part of the clamping strip is in an inverted isosceles triangle shape, 1 triangular or circular arc locking plate bulge is arranged at the upper part of the left end of the locking plate, a rectangular insertion strip is vertically arranged at the left end of the unlocking insertion plate downwards, 1 triangular or circular arc insertion plate bulge is also arranged at the upper part of the left side of the unlocking insertion plate, 1 long circular hole-shaped avoidance hole is arranged on the unlocking insertion plate at the inner side of the insertion plate bulge, the locking plate bulge penetrates upwards through the avoidance hole and is flush with the insertion plate bulge in height, the locking plate bulge is positioned in a circular arc groove right below the cam, the locking plate bulge is aligned with the first flange, the insertion plate bulge is aligned with the second flange, a spring connecting hole is also arranged at the left end of the unlocking insertion plate and is movably, the right side of the unlocking insertion plate is also provided with 1 through hole, a spring connecting hole is also arranged at the corresponding position of the locking plate below the through hole, the lower end of the locking plate tension spring penetrates through the through hole of the unlocking insertion plate downwards and then is movably connected with the spring connecting hole of the locking plate, the upper end of the locking plate tension spring is connected with the lock body, under the static state, in the direction which is perpendicular to the lock body from the outside to the inside, the teeth of the straight rack are aligned one by one and are linearly arranged, the center of the tooth top of one row of teeth and the center of the key hole are on the same vertical line, the teeth on the sliding plates are also aligned one by one and are linearly arranged, the tooth root of one row of teeth and the clamping strip of the locking plate are on the same vertical line, one row of teeth roots of the pinions are arranged right above the axial direction of the key, when the correct key is inserted into the tooth root, the key is rotated clockwise, the cam rotates clockwise, the first flange of the cam contacts with the bulge of the locking plate and pushes the locking plate to swing anticlockwise, the clamping strip of the locking plate is inserted into the sawtooth of each sliding plate, each sliding plate can not move horizontally, then the second flange of the cam begins to contact with the bulge of the inserting plate and pushes the unlocking inserting plate to swing anticlockwise, the inserting strip of the unlocking inserting plate is inserted into the rectangular opening of each sliding plate which is arranged linearly, the cam can continue to rotate and drives the unlocking executing mechanism such as an outdoor driving disc to operate to complete unlocking, then the handle and the cam mechanism are reset, the unlocking inserting plate and the locking plate are reset successively under the pulling of the inserting plate tension spring and the locking plate tension spring, each sliding plate is reset to the left under the action of the sliding plate tension spring, the key rotates reversely for a circle, then the key is drawn out, if the key is incorrect, the cam can still push the clamping strip to be inserted into the sawtooth of each, the sliding plates can not move any more, but the rectangular openings of the sliding plates can not be arranged in a straight line, the cutting slips can not be inserted into the rectangular openings, namely, the cam can not continue to rotate, the lockset can not be opened, a key is not needed during locking, the handle is rotated reversely, the cam mechanism rotates reversely and drives the unlocking execution mechanism to operate reversely to lock, the protrusions of the locking plate and the protrusions of the inserting plate in the process only contact with the bottom of the arc-shaped groove of the cam in a sliding mode, and the rotation of the cam is not influenced.

Among the above-mentioned scheme, slide A, slide B's main difference is that the slide below is used for connecting the hangers position difference of slide extension spring, and the purpose is divided into two sets of overall arrangement about the slide extension spring, and then the diameter of slide extension spring is close 2 times of slide interval for the diameter of slide extension spring is unlikely to too thin and influences the slide effect that resets, is also convenient for assemble the slide extension spring, with the gross thickness of minimizing the lock body and shorten the total length of key, ensures simultaneously that relevant spare part moves reliable and stable.

The key is formed by connecting a plurality of pinions with the same parameters in series, and means that the parameters are completely the same, namely the modulus, the reference circle diameter, the tooth height, the tooth pitch, the pressure angle and the like are the same although the number of teeth of each pinion is different.

In the scheme, each pinion of the key should be designed and manufactured according to the minimum tooth crest coefficient, namely, the pinion is designed and manufactured according to the short teeth, and the straight rack is designed and manufactured according to the normal standard, so that the incomplete gear on the key can be accurately meshed with the corresponding straight rack, tooth crest interference cannot be generated, the running distance of the corresponding sliding plate is accurate, and the key amount is also required to be increased. The reason is that: when an incomplete gear manufactured according to the normal standard of the gear is meshed with a straight rack, the first gear tooth participating in meshing on the incomplete gear is likely to generate tooth top interference with teeth which are not in contact with the straight rack, and the phenomenon of locking is likely to occur. This can only be avoided if the arc length of the toothless part or the number of toothless teeth exceeds a certain value. However, the diameter of the key cannot be too thick, that is, the number of teeth of the pinion gear on the key is limited, and the key amount is greatly reduced in order to reduce the maximum number of teeth of the partial gear without causing tooth top interference.

In the aspect of determining gear parameters, because the gear transmission characteristics in the scheme are low speed and light load, theoretically, although the modulus can be reduced and the number of teeth can be increased, certain fit clearance is reserved easily in consideration of the influence of machining errors and for inserting and pulling keys, and if the gear teeth are too small, transmission distortion and failure are easily caused. Meanwhile, the running distance of the sliding plate is integral multiple of the tooth pitch, the inserting strips of the unlocking inserting plate need certain thickness and strength, the width of the rectangular opening of the sliding plate cannot be smaller than the thickness of the inserting strips, and sufficient tooth pitch is inevitably needed, so that the number of teeth of the small gear of the key is small, the modulus is large, and the tooth pitch is large.

In this scheme, when the rectangle opening of each slide was linear array, the cutting of the picture peg of unblanking could insert wherein. In fact, the actual running distance of each sliding plate always has a certain deviation, but the clamping strip of the locking plate and the saw teeth on the sliding plate have a correction function, namely, the clamping strip can align the various irregular saw teeth one by one in the process of inserting the saw teeth.

In the forward rotation process of pushing down handle, cam mechanism, the first flange of cam contacts with the locking plate is protruding earlier to in the card strip that makes the locking plate inserts the sawtooth of each slide, each slide horizontal migration no longer, later the second flange of cam just begins to contact with the picture peg arch and promote the picture peg swing of unblanking, so can't move, rely on the sensation to look for the rectangle open position of slide through stirring the slide, can't the technique open the tool to lock promptly. If the handle is rotated by a strong force, the handle idles.

The key hole has no tiny parts, and the lock can not be opened even if the key hole is damaged by using an electric drill. The lock body is also free of micro parts, and is stable and durable as a whole.

If the number of the pinions and the slide plates of the key is 7, the number of the teeth of the complete pinion is 6, and the modulus is 1.5, the reference circle diameter of the pinion is 9 mm, and the pitch is the circumference ratio multiplied by the modulus 1.5, namely 4.71 mm. Since the number of teeth of a certain pinion may be one of 0, 1, 2, 3, 4, 5, and 6, the key amount is 7 powers of 7, i.e. 82.3 ten thousand, which greatly exceeds the national standard "class C" lock. The key of the invention has the step difference of 4.71 mm, which greatly exceeds the step difference of 0.5 mm of common marble and tooth, even considering the processing error and fit clearance, the actual key amount is still equal to the theoretical value.

Furthermore, the unlocking control mechanism in the scheme is turned over by 180 degrees forwards or backwards, the principle is unchanged, and the performance of the lockset is unchanged. The handle is characterized in that a round tube where a key hole is located is arranged right above a rotating shaft of the handle, the center of the key hole is still on the same vertical line with the center of a cam mechanism, a rectangular long hole is located at the lower portion of the round tube, a sliding plate is located below the round tube, a locking plate and an unlocking insertion plate are located between the sliding plate and a cam, and the unlocking insertion plate is located below the locking plate and above the cam. When the lock is unlocked, the key is still rotated clockwise for a circle, each sliding plate moves a corresponding distance from right to left respectively, then the handle is pressed down, the cam mechanism rotates positively, the first flange of the cam pushes the clamping strip of the locking plate firstly to be inserted into the sawteeth of each sliding plate upwards, the second flange pushes the inserting strip of the unlocking inserting plate to be inserted into the rectangular opening of each sliding plate upwards, and the cam continues to rotate to unlock the lock. In the scheme, the cam mechanism is positioned at the lowest part, the unlocking actuating mechanism moves downwards relative to the lock body, and in order to reduce the total size of the lock body, the lock bolt driving shaft, the lock bolt main driving disk and the lock bolt auxiliary driving disk are moved to the right side of the outdoor driving disk from the lower side of the outdoor driving disk.

Furthermore, the left side of handle pivot can also be arranged in key hole center to on same water flat line with handle pivot center, the rectangle slot hole is located the right side of pipe, each slide vertical direction reciprocating motion, the lock plate, the also vertical direction setting of picture peg of unblanking, its principle is unchangeable, the tool to lock performance is unchangeable. The positions of all parts of the unlocking control mechanism are as follows from left to right in sequence: the key hole is arranged on the circular tube, the sliding plate is vertically arranged, the locking plate is arranged, the unlocking insertion plate is arranged, and the cam is arranged. When the lock is unlocked, the key is still rotated clockwise for a circle, each sliding plate moves corresponding distance from top to bottom respectively, then the handle is pressed down, the cam mechanism rotates positively, the first flange of the cam pushes the clamping strip of the locking plate to insert into the sawtooth of each sliding plate leftwards, the second flange pushes the inserting strip of the unlocking inserting plate to insert into the rectangular opening of each sliding plate leftwards, and the cam continues to rotate to unlock.

The scheme describes a lockset structure used by a right-hand door, namely, when a person unlocks outdoors, a door shaft is positioned on the right side of the person. The tool to lock structure that left hand door used all needs to correspond the adjustment, and when unblanking, key, handle pivot all anticlockwise rotation.

The invention has the beneficial effects that: the incomplete gear drive type mechanical anti-theft lock replaces the lock core mechanism of the patent by a brand new unlocking control mechanism, has greatly simplified structure, is used as a core component of the lock control mechanism, adopts a stamping mode for processing and manufacturing a sliding plate and the like, has obviously reduced cost, is simple and easy to assemble, and simultaneously can ensure that the lock has the performance characteristics of technical opening prevention, destructive opening prevention, large key amount, stability, durability and the like.

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

Drawings

FIG. 1: a schematic view of an unlocking control mechanism;

FIG. 2: a key schematic;

FIG. 3: FIG. 2 is a sectional view taken along line a-a;

FIG. 4: a front view of the pipe;

FIG. 5: FIG. 4 is a top view;

FIG. 6: FIG. 5 is a cross-sectional view taken along line b-b;

FIG. 7: a circular tube assembly schematic diagram;

FIG. 8: a front view of the skateboard A;

FIG. 9: FIG. 8 is a top view;

FIG. 10: a schematic view of a skateboard B;

FIG. 11: the pinion of the key is meshed with the spur rack in a static state;

FIG. 12: the pinion of the key rotates by 90 degrees and then is meshed with the spur rack;

FIG. 13: the sliding plate A, the sliding plate B, the sliding shaft A, the sliding shaft B, the thin gasket, the thick gasket, the sliding plate tension spring and the lock body are assembled together;

FIG. 14: a lock plate front view;

FIG. 15: FIG. 14 is a top view;

FIG. 16: the right side view of FIG. 14;

FIG. 17: unlocking a front view of the plugboard;

FIG. 18: FIG. 17 is a top view;

FIG. 19: the right side view of FIG. 17;

FIG. 20: the cam, the rotary table, the external connecting shaft, the internal connecting shaft, the collision bead spring and the lock body are assembled schematically;

FIG. 21: a front view of the cam;

FIG. 22: FIG. 21 is a top view;

FIG. 23: FIG. 22 is a top view;

FIG. 24: a front view of the turntable;

FIG. 25: FIG. 24 is a top view;

FIG. 26: a schematic view of an external connection shaft;

FIG. 27 is a schematic view showing: a schematic view of an inner connecting shaft;

FIG. 28: the turntable and the external connecting shaft are assembled schematically;

FIG. 29: the cam, the rotary disc, the collision beads, the collision bead springs and the external connecting shaft are assembled schematically;

FIG. 30: a schematic view of an unlocking actuator;

FIG. 31: a front view of an outdoor driving disc;

FIG. 32: the right side view of FIG. 31;

FIG. 33: a front view of an indoor drive disc;

FIG. 34: the right side view of FIG. 33;

FIG. 35: a bolt drive shaft schematic;

FIG. 36: a bolt main driving disc schematic diagram;

FIG. 37: a bolt auxiliary driving disc schematic diagram;

FIG. 38: the overall structure schematic diagram of the lockset;

FIG. 39: a schematic view of an unlocking control mechanism when a key hole is right above a handle rotating shaft;

FIG. 40: the unlocking actuating mechanism is arranged on the handle rotating shaft and is arranged above the handle rotating shaft;

FIG. 41: the key hole and the unlocking control mechanism when the handle rotating shaft is horizontally arranged are schematic.

In each figure: 1, a lock body, 2, an outer side plate, 3, a partition plate, 4, an inner side plate, 5, a coaming, 6, an outer cavity, 7, an inner cavity, 8, an outer side surface of the lock body, 9, an inner side surface of the lock body, 10, a handle rotating shaft, 11, a door leaf outer panel, 12, a reinforcing plate, 13, a cam, 14, an arc-shaped groove, 15, a first flange, 16, a second flange, 17, a rotating disc, 18, a collision ball, 19, a collision ball spring, 20, an outer connecting shaft, 21, an inner connecting shaft, 22, an outdoor driving disc, 23, an unlocking push handle, 24, an locking push handle, 25, a protruding end, 26, a swing rod, 27, an indoor driving disc, 28, a main lock bolt pull plate, 29, a rear push pin, 30, a main lock bolt, 31, a front push pin, 32, a right-angle rotating plate, 33, a lock bolt driving shaft, 34, a main lock bolt driving disc, 35, a lock bolt auxiliary driving disc, 36, 40: a circular tube, 41: a key hole, 42: a step shaft, 43: a rectangular long hole, 44: a thin gasket, 45: a thick gasket, 46: a sliding plate A, 47: a sliding plate B, 48: a straight rack, 49: a sawtooth, 50: a rectangular opening, 51: a hanging lug, 52: a sliding plate tension spring, 53: a sliding shaft A, 54: a sliding shaft B, 55: a spring connecting column A, 56: a spring connecting column B, 57: a locking plate, 58: a clamping bar, 59: a locking plate bulge, 60: a spring connecting hole, 61: a rotating shaft, 62: a locking plate tension spring, 63: an unlocking insertion plate, 64: an insertion bar, 65: an insertion plate bulge, 66: an avoidance hole, 67: an insertion plate, 68: a lock outer panel, 69: a forward and reverse handle two-direction automatic resetting and idling device, and 70: a key.

Detailed Description

Embodiment 1:

as shown in fig. 1, 30, and 38, a lock body 1 of an incomplete gear drive type mechanical anti-theft lock includes an outer panel 2, a partition plate 3, an inner panel 4 and a surrounding panel 5, a rectangular cavity between the outer panel 2 and the partition plate 3 is an outer cavity 6, a rectangular cavity between the partition plate 3 and the inner panel 4 is an inner cavity 7, a side of the outer panel 2 located outside the lock body 1 is a lock body outer side surface 8, a side of the inner panel 4 located outside the lock body 1 is a lock body inner side surface 9, a reinforcing plate 12 is arranged inside a door leaf outer panel 11, the lock body 1 is fixedly mounted on the reinforcing plate 12, and the lock body outer side surface 8 contacts with the reinforcing plate 12. The outer side of the door leaf outer panel 11 is provided with a lock outer panel 68, and a handle rotating shaft 10 and a handle forward and backward direction automatic resetting and idling device 69 are assembled.

An unlocking control mechanism is assembled in the outer cavity 6 and comprises a key driving mechanism, a blocking mechanism and a cam mechanism, wherein the key driving mechanism comprises a key 70, a round pipe 40, a sliding plate A46, a sliding plate B47, a sliding shaft A53, a sliding shaft B54, a thin gasket 44, a thick gasket 45, a sliding plate tension spring 52, a spring connecting column A55 and a spring connecting column B56; the blocking mechanism comprises a locking plate 57, a locking plate tension spring 62, an unlocking insertion plate 63, an insertion plate tension spring 67 and a rotating shaft 61; the cam mechanism comprises a cam 13, a rotating disc 17, a collision ball 18, a collision ball spring 19, an external connecting shaft 20 and an internal connecting shaft 21.

The inner cavity 7 and the inner side surface 9 of the lock body are provided with an unlocking actuating mechanism. The unlocking actuating mechanism assembled in the inner cavity 7 comprises an outdoor driving disk 22, a swing rod 26, an indoor driving disk 27, a main lock bolt pulling plate 28, a rear pushing pin 29, a right-angle rotating plate 32, a front pushing pin 31, a lock bolt driving shaft 33, a lock bolt main driving disk 34 and the outer side part of an indoor driving shaft 38; the unlocking actuator mounted on the inner side 9 of the lock body comprises a main lock bolt 30, an indoor driving plate 39, a bolt auxiliary driving plate 35, a bolt connecting plate 36, a bolt 37 and the inner side part of an indoor driving shaft 38.

As shown in fig. 1, the through hole of the cylindrical tube 40 is a key hole 41 for inserting a key 70 therein. The key hole 41 is located directly below the center of the cam mechanism.

As shown in fig. 4, 5 and 6, the outer end of the circular tube 40 is in the shape of a stepped shaft, and the upper portion of the circular tube 40 located in the outer cavity 6 is provided with 1 rectangular long hole 43. As shown in fig. 7, the stepped shaft 42 of the circular tube 40 is assembled with the through hole of the outer panel 2 and extends out of the outer side 8 of the lock body, and then passes through the reinforcing plate 12 and the door outer panel 11, the outer end surface of the stepped shaft 42 is flush with the outer surface of the door outer panel 11, and the inner end of the circular tube 40 is fixedly assembled with the partition plate 3.

As shown in fig. 1 and 13, a plurality of sliding plates are arranged above the circular tube 40, all the sliding plates are divided into two types of sliding plates a46 and B47 according to the structural shape, the number of the sliding plates a46 is 4, the number of the sliding plates B47 is 3, and the assembly sequence of the sliding plates from outside to inside is as follows: first, 1 slide A46 is assembled, then 1 slide B47 is assembled, then 1 slide A46 is assembled, and so on, i.e., slides A46 and slides B47 are spaced apart and equally spaced. As shown in fig. 8, 9 and 10, the lower side of the middle part of each sliding plate is in a straight rack shape, the part is a straight rack 48, and each straight rack 48 is embedded into the rectangular long hole 43 of the circular tube 40. The upper side of the middle part of each sliding plate is provided with a plurality of saw teeth 49, the shape of the saw teeth 49 is isosceles triangle, the space between the saw teeth 49 is the same as the tooth pitch of the straight rack 48, and the random position of the upper part of the left side of each sliding plate is provided with 1 rectangular opening 50 with the same size. As shown in fig. 1, the left side and the right side of the outer cavity 6 are respectively provided with 1 sliding shaft a53 and 1 sliding shaft B54, the left side and the right side of each sliding plate are respectively provided with 1 oblong hole, and the sliding plates are respectively movably assembled with the sliding shaft a53 and the sliding shaft B54, that is, the sliding plate a46 and the sliding plate B47 can horizontally reciprocate for a certain distance. As shown in fig. 1, the left and right sides of the lower portion of the outer cavity 6 are further provided with 1 spring connecting column a55 and 1 spring connecting column B56, the lower portion of the left side of the sliding plate a46 is provided with a downwardly protruding hanging lug 51, the lower portion of the right side of the sliding plate B47 is also provided with a downwardly protruding hanging lug 51, each hanging lug 51 is provided with a through hole and is connected with the right end of a sliding plate tension spring 52, and the left end of each sliding plate tension spring 52 is connected with the spring connecting column a55 and the spring connecting column B56.

As shown in fig. 13, 1 thin washer 44 is movably mounted between the slide shafts a53 and B54, and 1 thick washer 45 is movably mounted between the outer panel 2 and the outermost slide plate a46 and between the partition panel 3 and the innermost slide plate a 46.

As shown in fig. 2 and 3, the key 70 is formed by connecting 7 short-toothed pinions in series, and the modules, pitch diameters, tooth heights, tooth pitches, pressure angles, and the like of the pinions are the same. The gear teeth of the pinions are aligned one by one along the axial direction, and the distance between the pinions is the same as that between the sliding plates. As shown in fig. 11, after the key 70 is inserted, each pinion gear is engaged with the spur rack 48 of the corresponding slide plate, but a certain pinion gear is either a full gear or an incomplete gear or the number of teeth is zero, and the pinion gears are arranged in a random order corresponding to the position of the rectangular opening 50 of the corresponding slide plate, thereby forming a different key. Meanwhile, no matter how many teeth are arranged on each incomplete gear, the toothed part or the non-toothed part is continuous, and the position right above the axial direction of the key is taken as a starting point, the toothed part or the non-toothed part is from toothed to non-toothed part according to the clockwise direction, after the key is rotated clockwise for one circle, the running distance of each sliding plate is equal to the product of the number of teeth and the tooth pitch of the corresponding pinion on the key 70, and at the moment, the rectangular openings 50 of each sliding plate are arranged in a straight line.

As shown in fig. 1, the locking plate 57 and the unlocking insertion plate 63 in the blocking mechanism are located between the sliding plate and the cam mechanism, the rotating shaft 61 is arranged at the right side of the outer cavity 6, and the right ends of the locking plate 57 and the unlocking insertion plate 63 are movably assembled with the rotating shaft 61 at the same time. As shown in fig. 14, 15 and 16, a clip strip 58 is vertically and downwardly provided at the left end of the lock plate 57, the lower portion of the clip strip 58 is shaped like an inverted isosceles triangle, and 1 locking plate protrusion 59 in the shape of a triangle or an arc is provided at the upper portion of the left end of the lock plate 57. As shown in fig. 17, 18 and 19, a rectangular insertion strip 64 is vertically and downwardly arranged at the left end of the unlocking insertion plate 63, 1 triangular or circular arc-shaped insertion plate protrusion 65 is also arranged at the upper part of the left side of the unlocking insertion plate 63, 1 oblong hole-shaped avoidance hole 66 is arranged on the unlocking insertion plate 63 inside the insertion plate protrusion 65, and the locking plate protrusion 59 penetrates upwards through the avoidance hole 66, is flush with the insertion plate protrusion 65 in height, and is located right below the cam mechanism. The left end of the unlocking insertion plate 63 is also provided with a spring connection hole 60. As shown in fig. 1, the spring connecting hole 60 of the unlocking insertion plate 63 is movably connected with the lower end of an insertion plate tension spring 67, the upper end of the insertion plate tension spring 67 is connected with the lock body 1, and the connection mode is realized by additionally arranging 1 spring connecting column or punching 1 spring hook on the enclosing plate 5. The right side of unblanking picture peg 63 still is equipped with 1 through-hole, and the corresponding position on the locking plate 57 of this through-hole below also is equipped with spring coupling hole 60, and the lower extreme of locking plate extension spring 62 passes this through-hole of unblanking picture peg 63 after again with the spring coupling hole 60 swing joint of locking plate 57, and the upper end of locking plate extension spring 62 is connected with lock body 1, and its connected mode adopts 1 spring coupling post of addding or 1 spring hanger of punching press on bounding wall 5 and realizes.

As shown in fig. 1, in the static state, in the direction perpendicular to the lock body 1 from the outside to the inside, the teeth of the straight rack 48 are aligned and aligned one by one, and the center of the top of one row of teeth is on the same vertical line with the center of the keyhole 41, and the teeth 49 of the slide plates are aligned and aligned one by one, and the root of one row of teeth 49 is on the same vertical line with the snap strip 58. Directly axially above the key 70 is one row of roots for each pinion.

As shown in fig. 21, 22 and 23, the cam 13 is provided with two adjacent circular arc grooves 14 along the circumferential direction, and one end surface of each of the two circular arc grooves 14 is respectively provided with a first flange 15 and a second flange 16 which are staggered by a certain angle. In the rest position, the locking plate projection 59 and the insert plate projection 65 are located in the circular arc-shaped groove 14, and the locking plate projection 59 is aligned with the first flange 15 and the insert plate projection 65 is aligned with the second flange 16.

As shown in fig. 20, 26 and 38, the square body at the outer end of the outer connecting shaft 20 is located outside the lock body outer side surface 8, and passes through the through holes of the reinforcing plate 12 and the door leaf outer panel 11 to be movably assembled with the handle rotating shaft 10 and synchronously rotate. As shown in fig. 28, the square body at the inner end of the external connection shaft 20 is assembled with the turntable 17 to rotate synchronously. As shown in fig. 20, 24, 25 and 29, the rotary plate 17 is assembled with the inner circumferential surface of the cam 13 through the ball 18 and the ball spring 19. When the resistance borne by the cam 13 does not exceed the limit value, the rotary table 17 can drive the cam 13 to synchronously rotate; when the cam 13 cannot rotate, the rotary plate 17 can idle against the thrust of the ball-striking spring 19. As shown in fig. 20, 27 and 38, the inner square hole of the cam 13 is assembled with the outer square shaft of the inner connecting shaft 21 to rotate synchronously, and the inner end of the inner connecting shaft 21 is provided with a flat shaft and a round shaft, wherein the round shaft is positioned at the end, and the flat shaft and the round shaft penetrate through the partition plate 3 and then are positioned in the inner cavity 7.

As shown in fig. 30, 31, 32, and 38, the flat shaft of the inner connecting shaft 21 is assembled with the outdoor driving disc 22 and synchronously rotates, the circular shaft at the end of the inner connecting shaft 21 is movably assembled with the swing link 26, the unlocking push handle 23 and the locking push handle 24 on the outdoor driving disc 22 are respectively located at two sides of the swing link 26 and are used for pushing the swing link 26 to swing in the forward and reverse directions, the flat shaft at the outer end of the indoor driving shaft 38 is assembled with the indoor driving disc 27 and synchronously rotate, as shown in fig. 33 and 34, the unlocking push handle 23 and the locking push handle 24 are also arranged on the indoor driving disc 27 and are respectively located at two sides of the swing link 26 and are used for pushing the swing link 26 to swing in the forward and reverse directions, the indoor driving shaft 38 penetrates through the inner side plate 4 and is assembled with the indoor driving plate 39 and synchronously rotates, and the inner end of the.

As shown in fig. 30, 35, 36, 37 and 38, the outer end of the latch bolt driving shaft 33 is assembled with the latch bolt main driving disc 34 and synchronously rotates, and the inner end of the latch bolt driving shaft 33 passes through the inner side plate 4 and then is assembled with the latch bolt auxiliary driving disc 35 and synchronously rotates.

Description of the drawings: in fig. 38, the "H" direction indicates that the actual position of the latch bolt driving shaft 33 should be shifted to the right; the "S" direction indicates that the actual position of the rear push pin 29 should be shifted to the left. The positions in the figures are to stretch the actually overlapping parts to the left and right, respectively, for clarity of illustration.

Outdoor unlocking operation process and working principle:

as shown in fig. 1, 30 and 38, when a correct key 70 is inserted to unlock, the key 70 is rotated clockwise for one circle, each sliding plate moves from left to right for a corresponding distance, then the handle is pressed down, that is, the handle rotates in a forward (clockwise) direction, the handle drives the outer connecting shaft 20 to rotate, the outer connecting shaft 20 drives the rotary disc 17 to rotate, the rotary disc 17 drives the cam 13 to rotate, the first flange 15 of the cam 13 first contacts with the locking plate protrusion 59 and pushes the locking plate 57 to swing in a counterclockwise direction, and the clamping strips 58 are inserted into the saw teeth 49 of each sliding plate, each sliding plate can not move horizontally any more, then the second flange 16 of the cam 13 starts to contact with the inserting plate protrusion 65 and pushes the unlocking inserting plate 63 to swing in a counterclockwise direction, and the inserting strips 64 are inserted into the rectangular openings 50 of each sliding plate which are arranged in a straight line, the cam 13 can continue to rotate and drive the inner connecting shaft 21 to rotate, thereby driving the outdoor driving disk 22 to, the end of the swing rod 26 pushes the main lock bolt pull plate 28 to move rightwards, the rear push pin 29 on the main lock bolt pull plate 28 pulls the main lock bolt 30 to move rightwards, the front push pin 31 on the main lock bolt pull plate 28 pushes the two right-angle rotating plates 32 to rotate, the right-angle rotating plates 32 respectively drive the top and bottom rods to vertically move, the protruding end 25 on the outdoor drive disk 22 pushes the lock bolt main drive disk 34 to rotate at the later stage of the rotation of the outdoor drive disk 22, the lock bolt drive shaft 33 is further driven to rotate, the lock bolt auxiliary drive disk 35 rotates along with the rotation, and the lock bolt auxiliary drive disk 35 pulls the lock bolt connecting plate 36 and the. Then the handle and the cam mechanism are automatically reset under the action of the automatic resetting and idling device 69 in the positive and negative directions of the handle, the unlocking plug board 63 and the locking board 57 are reset successively under the pulling action of the plug board tension spring 67 and the locking board tension spring 62 respectively, each sliding board is reset to the left under the action of the sliding board tension spring 52, the key 70 rotates for a circle along with the reverse direction, and then the key 70 is pulled out.

If the key 70 is incorrect, the cam 13 can still push the card strip 58 into the saw teeth 49 of each slide plate, and each slide plate can not move any more, but the rectangular openings 50 of each slide plate can not be arranged in a straight line, and the insert 64 can not be inserted into the rectangular openings, namely, the cam 13 can not rotate continuously, and the lock can not be unlocked. If the handle is rotated by a strong force, the handle idles.

Indoor unlocking operation process:

when the indoor handle or knob rotates forwards, the indoor driving shaft 38 is driven to rotate forwards, so that the indoor driving disc 27 is driven to rotate forwards, the unlocking push handle 23 on the indoor driving disc 27 pushes the swing rod 26 to swing forwards, the swing rod 26 pushes the main lock bolt pull plate 28 to move rightwards, and the unlocking movement of the main lock bolt 30 and the ground rod is completed; in the later stage of forward rotation of the indoor driving shaft 38, the indoor driving sheet 39 pushes the bolt auxiliary driving disc 35 to rotate, and then the bolt 37 is pulled to move rightwards to unlock the lock.

The outdoor locking operation process comprises the following steps:

when the outdoor lock is locked, a key is not used, the handle (namely the reverse handle) is rotated reversely, the handle drives the cam mechanism to rotate reversely, so that the locking push handle 24 on the outdoor driving disk 22 pushes the swing rod 26 to swing reversely, and the swing rod 26 drives the main lock bolt pulling plate 28 to move leftwards to complete the locking. During the outdoor locking process, the locking plate protrusion 59 and the inserting plate protrusion 65 are only in sliding contact with the bottom of the circular arc groove 14 of the cam 13, and the rotation of the cam 13 is not influenced.

Indoor locking operation process:

when the indoor lock is locked, the indoor handle or knob drives the indoor driving disk 27 to rotate reversely through the indoor driving shaft 38, and the locking push handle 24 on the indoor driving disk 27 pushes the swing rod 26 to swing reversely to complete the locking.

In the present embodiment, 7 pinions and 7 sliders are selected for each key, the number of teeth of the full pinion is 6, and the module is 1.5. The diameter of a reference circle of a pinion of the key is 9 mm, and the pitch is the circumference ratio multiplied by the modulus 1.5, namely 4.71 mm; the pitch of the spur rack 48 and the saw teeth 49 on the slide plate is also 4.71 mm.

Since the number of teeth of a certain pinion may be one of 0, 1, 2, 3, 4, 5, and 6, the key amount is 7 powers of 7, i.e. 82.3 ten thousand, which greatly exceeds the national standard "class C" lock.

As shown in fig. 2, the number of teeth of the pinion gear in the key of the present embodiment is 2, 6, 5, 0, 3, 4, and 1 in order from the key base to the key tip. The corresponding rectangular opening 50 of the slide plate is positioned as shown in fig. 13.

The key of the invention has the grade difference equal to one pitch, which greatly exceeds the grade difference of common marble and tooth pattern by 0.5 mm, and the actually used key amount is still equal to the theoretical value even considering the processing error and the fit clearance.

In fig. 11, the tooth height of the pinion is designed to be short, otherwise, the first tooth of the partial gear engaged with the tooth of the spur rack 48 not in contact with the tooth would interfere with the tooth top to cause seizure.

In fig. 11, since there is a fit clearance between the tooth crest of the pinion and the tooth profile of the spur rack 48, when the key starts to rotate, the last tooth of the incomplete gear engaged is disengaged from the tooth groove of the spur rack 48, and the corresponding slide plate remains stationary. Meanwhile, since the last gear tooth engaged with the spur rack 48 is not engaged with the next gear tooth, the actual running distance of the corresponding slide plate is reduced a little after the key 70 rotates one circle, but the snap rack 58 and the saw teeth 49 have the correction function: because the pitch is 4.71 mm and the pitch is half 2.355 mm, the distance that a certain sled runs less than 2.355 mm, and the snap strip 58 will align the misaligned teeth 49 during insertion of the teeth 49.

Embodiment 2:

as shown in fig. 39 and 40, the unlocking control mechanism in embodiment 1 is turned forward or backward by an angle of 180 degrees, and the principle and the lock performance are unchanged. Namely, the round tube 40 with the key hole 41 is arranged right above the handle rotating shaft 10, namely, the center of the key hole 41 is still on the same vertical line with the center of the cam mechanism, the rectangular long hole 43 is arranged at the lower part of the round tube 40, the sliding plate is arranged below the round tube 40, the locking plate 57 and the unlocking insertion plate 63 are arranged between the sliding plate and the cam 13, wherein the unlocking insertion plate 63 is arranged below the locking plate 57 and above the cam 13. When the lock is unlocked, the key is still rotated clockwise for a circle, each sliding plate moves from right to left for a corresponding distance respectively, then the handle is pressed down, the cam mechanism rotates forwards, the first flange 15 of the cam 13 pushes the clamping strip 58 of the locking plate 57 upwards to be inserted into the sawtooth 49 of each sliding plate, the second flange 16 pushes the inserting strip 64 of the unlocking inserting plate 63 upwards to be inserted into the rectangular opening 50 of each sliding plate, and the cam 13 continues to rotate to unlock the lock.

As shown in fig. 40, since the cam mechanism is located at the lowest position, the unlocking actuator moves downward with respect to the lock body 1, and in order to reduce the overall size of the lock body 1, the bolt driving shaft 33, the bolt main driving disk 34, and the bolt sub driving disk 35 are moved from the lower side of the outdoor driving disk 22 to the right side thereof.

Embodiment 3:

as shown in fig. 41, the key hole 41 of embodiment 1 is centered on the left side of the handle spindle 10 and is on the same horizontal line as the handle spindle center, the rectangular long hole 43 is located on the right side of the circular tube 40, the respective slide plates reciprocate in the vertical direction, and the lock plate 57 and the lock release insert plate 63 are also provided in the vertical direction, and the principle and the lock performance are not changed. The positions of all parts of the unlocking control mechanism of the scheme are sequentially from left to right: a circular tube 40 with a key hole 41, a sliding plate vertically arranged, a locking plate 57, an unlocking insertion plate 63 and a cam 13. When the lock is unlocked, the key is still rotated clockwise for a circle, each sliding plate moves from top to bottom for a corresponding distance, then the handle is pressed down, the cam mechanism rotates forwards, the first flange 15 of the cam 13 firstly pushes the clamping strip 58 of the locking plate 57 to insert into the sawtooth 49 of each sliding plate leftwards, the second flange 16 then pushes the inserting strip 64 of the unlocking inserting plate 63 to insert into the rectangular opening 50 of each sliding plate leftwards, and the cam 13 continues to rotate to unlock.

Claims

1. An incomplete gear drive type mechanical anti-theft lock comprises an outer side plate, a partition plate, an inner side plate and a surrounding plate, wherein a rectangular cavity between the outer side plate and the partition plate is an outer cavity, a rectangular cavity between the partition plate and the inner side plate is an inner cavity, the side of the outer side plate, which is positioned outside the lock body, is the outer side of the lock body, the side of the inner side plate, which is positioned outside the lock body, is the inner side of the lock body, an unlocking control mechanism is assembled in the outer cavity and comprises a cam mechanism, the cam mechanism is assembled by a cam, a turntable, a collision ball spring, an inner connecting shaft and an outer connecting shaft, wherein two adjacent arc-shaped grooves are arranged on the cam along the circumferential direction, one end surface of each arc-shaped groove is a first flange and a second flange, the two flanges are staggered by a certain angle, a reinforcing plate is arranged on the inner, the outer side of the lock body is contacted with the reinforcing plate, the square body of the outer side end of the outer connecting shaft is positioned outside the outer side of the lock body, penetrates through the reinforcing plate and the outer panel of the door leaf and is movably assembled and synchronously rotated with the handle rotating shaft, the square body of the inner side end of the outer connecting shaft is assembled and synchronously rotated with the turntable, the turntable is assembled and synchronously rotated with the inner circular surface of the cam through the collision bead and the collision bead spring, when the resistance force borne by the cam does not exceed the limit value, the turntable can drive the cam to synchronously rotate, when the cam cannot rotate, the turntable can idle against the thrust force of the collision bead spring, the square hole in the inner side of the cam is assembled and synchronously rotated with the square shaft of the outer side end of the inner connecting shaft, the inner side end of the inner connecting shaft is provided with a flat shaft and a round shaft, wherein the round shaft is positioned at the end, penetrates through the partition plate and is positioned in the inner cavity, the inner side surfaces, The lock comprises a swing rod, an indoor driving disk, a main lock bolt pulling plate, a front pushing pin, a right-angle rotating plate, a rear pushing pin, a lock bolt driving shaft, a lock bolt main driving disk and the outer side part of the indoor driving shaft, wherein an unlocking executing mechanism assembled on the inner side surface of a lock body comprises a main lock bolt, an indoor driving plate, a lock bolt auxiliary driving disk, a lock bolt connecting plate, a lock bolt and the inner side part of the indoor driving shaft, wherein a flat shaft of an inner connecting shaft is assembled with the outdoor driving disk and synchronously rotates, a round shaft at the end head of the inner connecting shaft is movably assembled with the swing rod, an unlocking push handle and an locking push handle on the outdoor driving disk are respectively positioned on the two sides of the swing rod and are used for pushing the swing rod to swing in the positive and negative directions, the flat shaft at the end head of the outer side of the indoor driving shaft is assembled, an indoor driving shaft penetrates through an inner side plate inwards and then is assembled with an indoor driving plate and synchronously rotates, an inner end of the indoor driving shaft is movably assembled with an indoor handle or a knob and synchronously rotates, an outer end of the lock bolt driving shaft is assembled with a lock bolt main driving plate and synchronously rotates, an inner end of the lock bolt driving shaft penetrates through the inner side plate and then is assembled with a lock bolt auxiliary driving plate and synchronously rotates, when the handle is pressed down, namely the handle rotates forwards, the handle drives an outer connecting shaft to rotate, the outer connecting shaft drives a rotating disc to rotate, the rotating disc drives a cam to rotate, the cam drives an inner connecting shaft to rotate and further drives an outdoor driving plate to rotate, an unlocking push handle on the outdoor driving plate pushes a swing rod to swing forwards, an end of the swing rod pushes a main lock bolt pull plate to move rightwards, an inner end of a rear push pin on the main lock bolt pull plate pulls, the two right-angle rotating plates respectively drive the top and bottom rods to vertically move, the protruding end on the outdoor driving disk pushes the main spring bolt driving disk to rotate and further drives the spring bolt driving shaft to rotate, the auxiliary spring bolt driving disk follows to rotate, the auxiliary spring bolt driving disk then pulls the spring bolt connecting plate and the spring bolt to move rightwards, thereby completing outdoor unlocking, when the indoor handle or knob rotates forwards, the indoor driving shaft is driven to rotate forwards and further drives the indoor driving disk to rotate forwards, the unlocking push handle on the indoor driving disk pushes the swing rod to swing forwards, the swing rod then pushes the main spring bolt pulling plate to move rightwards, thereby completing unlocking movement of the main spring bolt and the top and bottom rods, in the later stage of the forward rotation of the indoor driving shaft, the auxiliary spring bolt driving disk is pushed to rotate by the indoor driving sheet and further pulls the spring bolt to move rightwards to unlock the, and then make the locking push handle on the outdoor driving-disc promote the pendulum rod reverse swing, the pendulum rod promotes main set bar arm-tie and removes left and accomplish and lock again, when indoor locking, indoor handle or knob drive indoor driving-disc antiport through indoor drive shaft, the locking push handle on the indoor driving-disc promotes the pendulum rod reverse swing and accomplishes and lock characterized by: the unlocking control mechanism of the assembly in the outer cavity of lock body still contains key actuating mechanism and card hinders the mechanism, contain 1 pipe among the key actuating mechanism, a plurality of slide and key, the through-hole of pipe is the key hole promptly, be used for the key to insert wherein, this key hole is located cam mechanism center under, the outside end of pipe is step axle shape, the through-hole assembly of the outer panel of this step axle and lock body stretches out outside the lock body lateral surface, pass the reinforcing plate again, behind the door leaf outer panel, the outer terminal surface parallel and level of step axle and door leaf outer panel, the inboard end and the fixed assembly of baffle of pipe, the upper portion that is located the outer cavity of pipe is equipped with 1 rectangle slot hole, the top of pipe is equipped with a plurality of slide, all slides divide into slide A according to the structural shape altogether, slide B two kinds of type, each slide is from outside assembly order in: assembling 1 sliding plate A, 1 sliding plate B, 1 sliding plate A and the like, namely, the sliding plates A and the sliding plates B are mutually spaced and have the same interval, the lower side of the middle part of each sliding plate is in a straight rack shape, the part is a straight rack, each straight rack is embedded into a rectangular long hole of a circular tube, the upper side of the middle part of each sliding plate is provided with a plurality of sawteeth, the shape of the sawteeth is isosceles triangle, the interval of the sawteeth is the same as the tooth pitch of the straight rack, the random position of the upper part of the left side of each sliding plate is provided with 1 rectangular opening with the same size, the left side and the right side of an outer cavity are respectively assembled with 1 sliding shaft A and 1 sliding shaft B, the left side and the right side of each sliding plate are respectively provided with 1 long round hole and are respectively movably assembled with the sliding shaft A and the sliding shaft B, namely, the sliding plates A and the sliding plates B can horizontally reciprocate for a certain distance, and are arranged, 1 thin gasket is movably assembled between the sliding plates, 1 thick gasket is movably assembled between the outer side plate and the sliding plate on the outermost side and between the partition plate and the sliding plate on the innermost side, the left side and the right side of the lower part of the outer cavity are respectively provided with 1 spring connecting post A and 1 spring connecting post B, the lower part of the left side of the sliding plate A is provided with a downward protruding lug, the lower part of the right side of the sliding plate B is also provided with a downward protruding lug, each lug is provided with a through hole and is respectively connected with the right end of a sliding plate tension spring, the left end of each sliding plate tension spring is respectively connected with the spring connecting post A and the spring connecting post B, the key is formed by serially connecting a plurality of pinions with the same parameters, each pinion is a short-tooth gear, the teeth of each pinion are aligned one by one along the axial direction, the space of each pinion is the same as that of each sliding plate, but a certain pinion is a complete gear or an incomplete gear or the number of teeth is zero, the arrangement sequence of the pinions is also randomly arranged and corresponds to the position of the rectangular opening of the corresponding sliding plate, thereby forming different keys, simultaneously, no matter how many teeth exist in each incomplete gear, the part with teeth or the part without teeth is continuous, and the position right above the axial direction of the key is taken as a starting point, the parts from the teeth to the no teeth are arranged according to the clockwise direction, after the key is rotated clockwise for one circle correctly, the running distance of each sliding plate is equal to the product of the number of teeth and the tooth pitch of the pinion on the corresponding key, at the moment, each rectangular opening on each sliding plate is arranged in a straight line, the blocking mechanism is positioned between each sliding plate and the cam, the blocking mechanism comprises 1 locking plate and 1 unlocking inserting plate, the right side of the outer cavity is also provided with 1 rotating shaft, and the right ends of the locking plate and the unlocking inserting plate are movably, the length of the unlocking insertion plate is greater than that of the locking plate, the unlocking insertion plate is positioned above the locking plate, a clamping strip is vertically arranged at the left end of the locking plate downwards, the lower part of the clamping strip is in an inverted isosceles triangle shape, 1 triangular or circular arc locking plate bulge is arranged at the upper part of the left end of the locking plate, a rectangular insertion strip is vertically arranged at the left end of the unlocking insertion plate downwards, 1 triangular or circular arc insertion plate bulge is also arranged at the upper part of the left side of the unlocking insertion plate, 1 long circular hole-shaped avoidance hole is arranged on the unlocking insertion plate at the inner side of the insertion plate bulge, the locking plate bulge penetrates upwards through the avoidance hole and is flush with the insertion plate bulge in height, the locking plate bulge is positioned in a circular arc groove right below the cam, the locking plate bulge is aligned with the first flange, the insertion plate bulge is aligned with the second flange, a spring connecting hole is also arranged at the left end of the unlocking insertion plate and is movably, the right side of the unlocking insertion plate is also provided with 1 through hole, a spring connecting hole is also arranged at the corresponding position of the locking plate below the through hole, the lower end of the locking plate tension spring penetrates through the through hole of the unlocking insertion plate downwards and then is movably connected with the spring connecting hole of the locking plate, the upper end of the locking plate tension spring is connected with the lock body, under the static state, in the direction which is perpendicular to the lock body from the outside to the inside, the teeth of the straight rack are aligned one by one and are linearly arranged, the center of the tooth top of one row of teeth and the center of the key hole are on the same vertical line, the teeth on the sliding plates are also aligned one by one and are linearly arranged, the tooth root of one row of teeth and the clamping strip of the locking plate are on the same vertical line, one row of teeth roots of the pinions are arranged right above the axial direction of the key, when the correct key is inserted into the tooth root, the key is rotated clockwise, the cam rotates clockwise, the first flange of the cam contacts with the bulge of the locking plate and pushes the locking plate to swing anticlockwise, the clamping strip of the locking plate is inserted into the sawtooth of each sliding plate, each sliding plate can not move horizontally, then the second flange of the cam begins to contact with the bulge of the inserting plate and pushes the unlocking inserting plate to swing anticlockwise, the inserting strip of the unlocking inserting plate is inserted into the rectangular opening of each sliding plate which is arranged linearly, the cam can continue to rotate and drive the unlocking actuating mechanism to operate to complete unlocking, then the handle and the cam mechanism are reset, the unlocking inserting plate and the locking plate are reset successively under the pulling of the inserting plate tension spring and the locking plate tension spring, each sliding plate is reset to the left under the action of the sliding plate tension spring, the key rotates reversely for a circle, then the key is drawn out, if the key is incorrect, the cam can still push the clamping strip to be inserted into the sawtooth of each sliding plate firstly, the sliding plates can not move any more, but the rectangular openings of the sliding plates can not be arranged in a straight line, the cutting slips can not be inserted into the rectangular openings, namely, the cam can not continue to rotate, the lockset can not be opened, a key is not needed during locking, the handle is rotated reversely, the cam mechanism rotates reversely and drives the unlocking execution mechanism to operate reversely to lock, the protrusions of the locking plate and the protrusions of the inserting plate in the process only contact with the bottom of the arc-shaped groove of the cam in a sliding mode, and the rotation of the cam is not influenced.

2. The partial gear drive mechanical anti-theft lock of claim 1, wherein: the positions of all parts of the unlocking control mechanism can be rearranged, namely, the unlocking control mechanism is turned over by 180 degrees forwards or backwards, so that the circular tube is positioned at the top, the center of the key hole is still on the same vertical line with the center of the cam mechanism, the rectangular long hole is positioned at the lower part of the circular tube, the sliding plate is positioned below the circular tube, the locking plate and the unlocking insertion plate are positioned between the sliding plate and the cam, the unlocking insertion plate is positioned below the locking plate and above the cam, when the key is unlocked, the key is still rotated clockwise for a circle, all the sliding plates move corresponding distances from right to left respectively, then the handle is pressed downwards, the cam mechanism rotates forwards, the first flange of the cam pushes the clamping strip of the locking plate upwards to be inserted into the sawtooth of each sliding plate, the second flange pushes the insertion strip of the unlocking insertion plate upwards to be inserted.

3. The partial gear drive mechanical anti-theft lock of claim 1, wherein: can also arrange the left side of handle pivot in with key hole center to on same water flat line with handle pivot center, the rectangle slot hole is located the right side of pipe, each slide vertical direction reciprocating motion, the lock plate, the also vertical direction setting of picture peg of unblanking, each part position of unlocking control mechanism is from a left side to the right side and is in proper order: the pipe at key hole place, the slide that sets up perpendicularly, lock plate, the picture peg of unblanking, the cam, when unblanking, still clockwise rotation key a week, each slide moves corresponding distance from the top down respectively, later pushes down the handle, cam mechanism forward rotation, the first flange of cam promotes the card strip of lock plate earlier and inserts the sawtooth of each slide left, the second flange promotes the cutting of the picture peg of unblanking again and inserts the rectangle opening of each slide left, the cam continues to rotate and unblank.