CN107119998B - Mark sequential changing mechanical puzzle lock - Google Patents
Mark sequential changing mechanical puzzle lock Download PDFInfo
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- CN107119998B CN107119998B CN201710491635.XA CN201710491635A CN107119998B CN 107119998 B CN107119998 B CN 107119998B CN 201710491635 A CN201710491635 A CN 201710491635A CN 107119998 B CN107119998 B CN 107119998B
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B37/00—Permutation or combination locks; Puzzle locks
- E05B37/20—Puzzle locks, e.g. of labyrinth type; Fasteners with hidden or secret actuating mechanisms
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Abstract
The invention provides a mechanical coded lock with sequence change in identification, which comprises: the lock cylinder is sleeved on the lock shell outside the lock cylinder, one side of the lock cylinder is provided with a plurality of lock tongues, and the lock cylinder is fixedly connected with a conical push table; the password sheet is provided with radial password holes; the lock shell is internally provided with a limiting hole, the password sheet is arranged in the lock shell, the identification tail protrudes out of the limiting hole, and the identification tail swings in the range limited by the limiting hole; a window is arranged on the lock shell corresponding to a certain tongue direction, and a tongue direction code which changes along with the rotation of the lock tongue is arranged in the window; the lock shell is fixedly connected with the lock shell to form a whole, the lock shell is fixedly connected with the lock shell, the tapered push platform is arranged in the lock shell, and the lock pin is arranged in the lock shell; when each password sheet is simultaneously provided with a password hole in the same direction as the lock tongue, the lock column descends, the conical pushing platform forces the tip of the clamping pin to retract inwards, the locking process of the password lock is completed once, the lock column rotates once, the password lock automatically changes passwords, the password sheets are various in style, the password combination amount is large, and the encryption performance is very strong.
Description
Technical Field
The invention belongs to a mechanical coded lock, in particular to a mechanical coded lock with a periodically changed code.
Background
The existing coded lock is very wide in application, the safety is greatly improved, and an electronic lock in the existing coded lock is high in manufacturing cost, cannot be used conveniently and is used in a large quantity. Mechanical combination locks are the direction of research of many technicians to meet market demands.
The application date of Chinese patent 201520486451.0 is: year 2015, month 07, day 03, publication day: 2016, 03 and 23, provides a padlock with multiple digits and multiple groups of passwords sequentially changed group by group, which comprises a shell, wherein a bolt column, a lock column, a pin and a U-shaped lock beam are arranged in the shell; a pin driving block is arranged at the top of the bolt locking column, and the pin is arranged in the pin driving block; the tail end of the pin is provided with a return spring; the middle part of the bolt column is provided with N groups of bolts, and each group of bolts comprises a plurality of bolts with different heights; the bottom of the bolt column penetrates through the shell and is sleeved with a first digit wheel; a groove corresponding to the lock tongue is formed in the lock column, and a second digital wheel is sleeved at one end of the lock column; the two lock cylinders are in one group and positioned on two sides of the lock tongue, and N groups are provided in total; and one end of the U-shaped lock beam is provided with a spring, and the other end of the U-shaped lock beam is provided with a pin hole corresponding to the pin. The disadvantages of this solution are: the locking mechanism is complex in structure, large in processing difficulty and inconvenient to assemble, each first digit wheel of the scheme corresponds to one group of unlocking passwords, the first digit wheels are considerable and can be easily obtained by people, and the security of the scheme is not high.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a mechanical lock which is not easy to crack, has good safety and can periodically change passwords, and the technical scheme of the mechanical lock is as follows:
an identifying sequential mechanical combination lock comprising:
the lock cylinder is provided with springs at the upper part and the lower part, the top of the lock cylinder is provided with an unlocking key, one side of the lock cylinder is provided with a plurality of lock tongues, and the lock cylinder is fixedly connected with a conical push platform;
the password sheet consists of a lockhole disc and an identification tail, and a radial password hole is formed in the lockhole disc;
the lock comprises a lock shell, a lock post, a mark tail, a lock bolt and a lock shell, wherein the lock shell is sleeved outside the lock post, a stroke unit corresponding to the lock bolt is arranged in the lock shell, a password sheet is arranged in the stroke unit, a limit hole is formed in the side wall of the stroke unit, the mark tail protrudes out of the limit hole, the mark tail swings in the range limited by the limit hole, a window is arranged at a position, corresponding to a certain direction of the lock, on the lock shell, a direction code which changes along with the rotation of the lock bolt is arranged in the window, and the direction code is a combined code of any 1-3 characters;
the lock cylinder is provided with a lock cylinder, the lock cylinder is provided with a lock pin, the lock pin is arranged below the lock cylinder, the tip of the lock pin protrudes out of the lock cylinder, the lock pin is provided with an inclined surface matched with the lock cylinder, and the lock pin retracts when being pressed by the lock cylinder;
when each password sheet has a password hole in the same direction as the lock tongue, the lock tongue can operate once without resistance; when the lock cylinder descends, the conical pushing platform forces the tip of the clamping needle to retract inwards; the lock stroke of the coded lock is completed once, and the radial displacement of the lock cylinder is performed once.
As an improvement of the invention, a U-shaped pin box is arranged on the side of the expansion box, a lock pin is arranged in the pin box, the lock pin consists of a lock pin head and a lock pin tail, the lock pin head is a solid arc strip, the lock pin tail is a hollow arc strip, a handle is arranged on the lock pin head, and a tension spring is arranged at the tail end of the lock pin; the clamping needle is in a retracted state when positioned in the range of the lock pin head, and is in an extended state when positioned in the range of the lock pin tail.
The bar through-hole inboard of card needle is equipped with the teeth of a cogwheel structure, the rigid coupling has the pinion with this teeth of a cogwheel meshing on the lock post, and when the card needle stretched out, the pinion was pulled to the teeth of a cogwheel and rotates, made the spring bolt produce the displacement. The rubbing box is provided with a button acting on the clamping needle, the button is protruded out of the rubbing box under the thrust when the clamping needle retracts, and the clamping needle is pushed out when the button is pressed in, so that the tip end of the clamping needle extends out. The structure for extending the sharp end of the clamping needle can also be a spring arranged at the tail end of the clamping needle.
The lock shell is formed by combining a lock tube and a plurality of fixing rings, and the lock tube is an open circular tube; the fixing ring is of a double-tube structure, the two rings are provided with a fan-shaped connecting area, and the locking tube is sleeved in an interlayer of the double tubes of the fixing ring.
Each stroke unit is also sleeved with a marking wheel, the surface of the marking wheel is provided with coded numbers, the tail of the mark is fixedly connected with the inner side of the marking wheel, and a clamping structure is arranged between the marking wheel and the fixed wheel.
The lock cylinder radially displaces 90 degrees each time, and the bolt has four orientations of 0 degree, 90 degrees, 180 degrees and 270 degrees.
The invention provides two password pieces which are matched with a lock tongue in four bit directions, 1) the password pieces are provided with four password holes, and the password holes are distributed in eight directions of 0 degree, 60 degrees, 90 degrees, 150 degrees, 180 degrees, 240 degrees, 270 degrees and 330 degrees of the password pieces; 2) the password sheet is provided with four password holes which are distributed on the uniform 16-direction of the password disk.
The invention is applied to the coded locks, and the patterns of the coded sheets are different or only 1-2 of the coded sheets are the same.
The password lock automatically changes the password after being used every time, has multiple password sheet styles, large password combination amount and very strong encryption function, and is suitable for single users. The coded lock is more suitable for being used by multiple users in a staggered way after being matched with a general decoding platform.
Drawings
FIG. 1 is a schematic view of the overall structure of the lock;
FIG. 2 is a view showing the structure of a tapered pushing table and a needle clamping portion;
FIG. 3 is a schematic view of an assembled lock housing;
FIG. 4 is a partial schematic view of a tongue code;
FIG. 5 is a modified block diagram of the combination lock;
FIG. 6 is a diagram of a locking state of the improved structure;
FIG. 7 is a structural view of the locking pin;
FIG. 8 is a diagram of a cipher chip pattern in an eight-way arrangement;
FIG. 9 is an example of a 16-way layout of code chip patterns;
FIG. 10 is a diagram showing the operation of the taper push table, the latch needle and the pinion.
Detailed Description
Referring now to the drawings, and as shown in fig. 1-4, a mechanical combination lock with sequential identification, according to the present invention, comprises:
the lock cylinder 2, lock cylinder 2 one side is equipped with a plurality of spring bolts 2a, and the rigid coupling has toper to push away platform 2b on the lock cylinder 2.
The password sheet 3, password sheet 3 comprises lockhole dish 3b and sign tail 3a, be equipped with radial password hole 3c on the lockhole dish 3 b.
The lock comprises a lock shell 4, the lock shell 4 is sleeved outside the lock column 2, a stroke unit corresponding to the lock tongue 2a is arranged in the lock shell 4, a password sheet 3 is installed in the stroke unit, a limiting hole is formed in the upper side wall of the stroke unit, the mark tail 3a protrudes out of the limiting hole, and the mark tail 3a swings in the range limited by the limiting hole.
The lock comprises a rubbing box 5, the rubbing box 5 is fixed with a lock shell 4 into a whole, the rubbing box 5 contains a conical pushing platform 2b, a clamping needle 6 is installed in the rubbing box 5, the clamping needle 6 is provided with a strip-shaped through hole 6a for the lock column 2 to pass through, the clamping needle 6 is arranged below the conical pushing platform 2b, the tip of the clamping needle 6 protrudes out of the rubbing box 5, the clamping needle 6 is provided with an inclined plane matched with the conical pushing platform 2b, and the tip of the clamping needle 6 retracts when being pressed by the conical pushing platform 2 b.
When each password sheet 3 is simultaneously provided with a password hole 3c in the same direction as the bolt 2a, the bolt 2a can operate once without resistance; when the lock cylinder 2 descends, the conical pushing platform 2b forces the tip of the clamping pin 6 to retract inwards.
The lock stroke of the coded lock is completed once, and the lock column 2 and the lock tongue 2a displace in the radial direction once.
The lock cylinder 2 is provided with springs at the upper and lower parts, and the top of the lock cylinder 2 is provided with an unlocking key 1. When the unlocking key 1 is pressed, the bolt 2a can move downwards in the lock shell 4, and the vector pressure is reset. The conical pushing platform 2b and the lock cylinder 2 are a common moving body, when the lock cylinder 2 moves downwards, the conical pushing platform 2a moves downwards in the same body, the inclined surface of the conical pushing platform 2a forms downward pressure on the clamping pin 6, the inclined surface of the clamping pin 6 converts the vertical pressure of the conical pushing platform 2a into horizontal thrust, and the tip of the clamping pin retracts. The conical pushing platform 2a of the invention pushes the clamping needle 6 to enable the tip of the clamping needle to retract to achieve the purpose of unlocking, so that the conical pushing platform and the clamping needle can be arranged at the upper part, the middle part and the lower part of the lock cylinder as long as the relative positions of the conical pushing platform and the clamping needle are not changed.
The invention provides a specific scheme for enabling a lock cylinder 2 and a lock tongue 2a to radially displace, which comprises the following steps: the bar through-hole 6a inboard is equipped with the teeth of a cogwheel structure, the rigid coupling has on the lock post 2 with the pinion 2d of this teeth of a cogwheel 6b meshing, when card needle 6 stretches out, teeth of a cogwheel 6b pulls pinion 2d and rotates, makes spring bolt 2a produce the displacement. The rubbing box 5 is provided with a button 7 acting on the clamping needle, the button 7 is pushed to protrude out of the rubbing box 5 when the clamping needle 6 retracts, and the clamping needle 6 is pushed out to enable the tip end of the clamping needle to extend out when the button 7 is pressed. The structure for extending the sharp end of the clamping needle can also be a spring arranged at the tail end of the clamping needle.
The lock shell 4 of the present invention can be an integrally formed component, and in view of simplifying production and facilitating assembly, the present invention further provides a structural scheme of the assembled lock shell 4: as shown in fig. 3, the lock case 4 is formed by combining a lock tube 4a and a plurality of fixing rings 4b, and the lock tube 4a is an open circular tube; the fixing ring 4b is of a double-tube structure, the inner tube and the outer tube are provided with a fan-shaped solid connecting area, an interlayer matched with the locking tube 4a is formed between the two tubes, and the locking tube 4a can be inserted into the interlayer of the double tubes. When the coded lock is assembled, a fixing ring 4b is taken and sleeved outside a lock tube 4a, then a coded sheet 3 is taken and put into the lock tube 4a, and other fixing rings 4b and the coded sheets 3 are also sequentially installed. Each group of fixing rings 4b and the password sheet 3 form a stroke unit, the stroke unit corresponds to the position of one lock tongue 2a, and the opening angle of the lock tube 4a is the size of the limiting hole 4 c.
Each stroke unit is also sleeved with a marking wheel, the surface of the marking wheel is provided with coded numbers, the tail of the mark is fixedly connected with the inner side of the marking wheel, and a clamping structure is arranged between the marking wheel and the fixed wheel.
As shown in fig. 4, a window 4c is provided on the lock case 4 corresponding to a certain bolt direction, and a number indicating the bolt direction, here called a bolt direction code, is provided on the lock cylinder 2. The tongue code can be observed through the window 4 c. Or a tongue direction indicating disc 2c fixedly connected with the lock cylinder 2 into a whole can be arranged in the window 4c, and a tongue direction code is arranged on the tongue direction indicating disc 2 c. The lingualcode can be a combination of 1-3 bit arbitrary characters. The tongue code of each lock cylinder used in the combination lock of the present invention may be different.
The improvement of this trick lock, as shown in fig. 5, 6, 7, it is equipped with horseshoe shape round pin box 7 to open up the appearance box 5 side, and round pin box 7 is inside to be equipped with lockpin 8, and lockpin 8 comprises lockpin head 8a and lockpin tail 8b, lockpin head 8a is solid arc strip, lockpin tail 8b is hollow arc strip, be equipped with the handle on the lockpin head 8a, lock tail 8b tip is equipped with extension spring 9. The latch head 8a is locked by pulling out the latch case 7 through the handle. With the pulling out of the lock pin 8, the latch 6 leaves the lock pin head 8a to the hollow of the lock pin tail 8b, and the lock pin head 8a is not blocked and extends out of the rubbing box 5, so that on one hand, the tip of the latch is latched in the lock pin tail 8b to fix the locking state of the lock pin 8, and on the other hand, the gear teeth of the latch 6 pull the pinion 2d while the tip of the latch extends out, so that the lock tongue 2a generates radial displacement. This structure is used in combination with the structure of mounting the spring at the rear of the latch pin 6.
The latch 6 of the present invention is not limited to the shape and structure illustrated in the drawings, and the tip portion of the latch 6 may be simply changed in shape to discard the pin case and the lock pin as a latch mechanism directly to a target.
The radial displacement of the lock cylinder 2 can be any angle, the invention provides an embodiment of setting four groups of passwords, the lock cylinder displaces 90 degrees each time, and the bolt has four directions of 0 degree, 90 degrees, 180 degrees and 270 degrees.
The lock is provided with four groups of coded locks, four coded holes are arranged on an applied coded disc, and the coded holes are distributed on the coded disc in eight directions of 0 degree, 60 degrees, 90 degrees, 150 degrees, 180 degrees, 240 degrees, 270 degrees and 330 degrees based on the identification tail; the limiting hole 4c limits the swing of the mark tail within 30 degrees. Based on the above-mentioned principle of the arrangement of code holes, the present invention designs 16 code sheet patterns, as shown in fig. 8.
The lock is provided with four groups of coded locks, four coded holes are arranged on an applied coded disc, the coded holes are distributed in the 16-direction directions of the coded disc, specifically, the coded holes are positioned in any direction of 0 degree, 22.5 degrees, 45 degrees and 67.5 degrees in every 90-degree range based on the identification tail, and the limit holes 4c limit the identification tail to swing in the range of 0 degree to 67.5 degrees. Four such style chip examples are shown in fig. 9.
Of course, the code hole is not limited to the patterns shown in fig. 8 and 9.
The code sheet 3 provided by the invention does not require all applications on one code lock, only a plurality of applications can be selected, and the code sheet applied by each code lock does not require different patterns.
The top of the lock column 2 is provided with an anti-deviation ring, so that the pinion can be just matched with the gear teeth on the strip-shaped through hole 6a when the lock column 2 is reset every time.
The coded lock provided by the invention is not only suitable for one-to-one mode of one coded lock and one user, but also suitable for many-to-many staggered mode, such as sharing a bicycle.
The specific operation of the invention is as follows: when the horseshoe-shaped lock is in end-to-end connection, the coded lock is in a locking state, the tip of the clamping needle 6 extends out to be clamped in the hollow of the lock pin tail 8b, and the position of the lock pin 8 is fixed. When the user uses: 1. according to the obtained password, the position of the mark tail 3a is adjusted by rotating the marking wheel, so that each password sheet 3 is provided with a password hole 3c in the same direction with the lock tongue 2 a; 3. the unlocking key 1 is pressed, the conical pushing platform 2b presses the clamping needle 6 to enable the clamping needle 6 to retract inwards, the lock pin 8 retracts into the lock box 7 without resistance, and the lock pin head 8a props against the tip of the clamping needle 6; 4. then the lock cylinder 2 is reset under vector pressure, the pinion 2d returns to the strip-shaped through hole 6a to be meshed with the gear teeth, and the unlocking action of the coded lock is finished; 5. the lock pin 8 is pulled out through the handle to be locked, and when the clamping needle 6 reaches the range of the lock pin tail 8b, the clamping needle extends out to enter the hollow to lock the lock pin 8 to be locked; meanwhile, the gear teeth pulling pinion 2d rotates in the process of extending the clamping needle 6, so that the bolt 2a generates radial displacement.
The interaction of the parts within the cabinet during the above described operation can be understood with reference to figure 10.
The invention provides a multi-user network decoding platform, which records the number of password pieces, the style of the password pieces and the tongue direction code of a lock tongue applied by each password lock and pushes an unlocking password for a user according to information provided by the user. Specifically, the method comprises the following steps: the user can log in the decoding platform and input the mark code of any one of the used coded locks. The decoding platform can extract the record of the coded lock and feed the code back to the hand of the user.
When the password holes of the password sheet applied to the password lock are in an eight-direction distribution scheme, the mark tail has two bit states of 0 and 1, and two numbers of 0 and 1 are displayed on the mark wheel. The cipher sent in the decoding platform will be a combination of two digits, 0 and 1, such as: 01101010, the user can rotate the indicating wheel to the right position according to the code and can unlock the lock by pressing the button.
When the password holes of the password sheet applied to the password lock are in a 16-square distribution scheme, the mark tail has four bit states, four numbers of 0, 1, 2 and 3 are displayed on the mark wheel, and the password obtained by a user can be as follows: 0223130.
after use, when locking is needed, the lock pin is pulled out, then the tongue code is observed and sent to the decoding platform, and the use is finished and the decoding platform charges. In the invention, each coded lock of the tongue direction code can be different, so that an individual cannot easily know the setting rule of the lock, and the right of a supplier is protected.
The coded lock provided by the invention is of a full mechanical structure, so that the cost is greatly reduced compared with that of a plurality of-to-many shared electronic locks which are widely applied at present, and the inconvenience in use caused by the failure or weak signals of wireless signal transceiving equipment is avoided. The invention is easy to manufacture, the cipher pieces have various styles, the cipher level is large in quantity, one is locked with a plurality of codes, the encryption is strong, and the cipher is not easy to crack.
Claims (10)
1. The utility model provides an identification order transform mechanical trick lock, includes lock cylinder and the lock shell of suit outside the lock cylinder, all be equipped with the spring on the lock cylinder, the lock cylinder top is equipped with unlocking key, characterized by: also comprises
The lock comprises a lock cylinder, a plurality of lock tongues are arranged on one side of the lock cylinder, and a conical pushing platform is fixedly connected to the lock cylinder;
the password sheet consists of a lockhole disc and an identification tail, and a radial password hole is formed in the lockhole disc;
the lock comprises a lock shell, wherein a stroke unit corresponding to the lock tongue is arranged in the lock shell, a password sheet is arranged in the stroke unit, a limit hole is formed in the upper side wall of the stroke unit, the mark tail protrudes out of the limit hole, the mark tail swings in the range limited by the limit hole, a window is arranged on the lock shell corresponding to a certain tongue direction, and a tongue direction code which changes along with the rotation of the lock tongue is arranged in the window;
the lock cylinder is provided with a tapered push platform, the tapered push platform is provided with a clamping pin, the tapered push platform is provided with a strip-shaped through hole for the lock cylinder to penetrate through, the inner side of the tapered through hole of the tapered push platform is provided with a gear tooth structure, and the lock cylinder is fixedly connected with a pinion which is meshed with the gear tooth; the clamping needle is arranged below the conical pushing platform, the tip end of the clamping needle protrudes out of the rubbing box, the clamping needle is provided with an inclined plane matched with the conical pushing platform, and the tip end of the clamping needle retracts when being pressed by the conical pushing platform; the expansion box is provided with a button acting on the clamping needle;
when each password sheet has a password hole in the same direction as the lock tongue, the lock tongue can operate once without resistance; when the lock cylinder descends, the conical pushing platform forces the tip of the clamping needle to retract inwards; the lock stroke of the coded lock is completed once, and the circumferential displacement of the lock cylinder is performed once.
2. The identifiable sequential mechanical combination lock of claim 1, wherein: the button is a horseshoe-shaped pin box arranged on the side surface of the expansion box, a lock pin is arranged in the pin box, the lock pin consists of a lock pin head and a lock pin tail, the lock pin head is a solid arc strip, the lock pin tail is a hollow arc strip, a handle is arranged on the lock pin head, and a tension spring is arranged at the tail end of the lock pin; the clamping needle is in a retracted state when positioned in the range of the lock pin head, and is in an extended state when positioned in the range of the lock pin tail.
3. The identifiable sequential mechanical combination lock of claim 2, wherein: a gear tooth structure is arranged on the inner side of the strip-shaped through hole of the clamping needle, and a pinion meshed with the gear tooth is fixedly connected to the lock column; and a spring is arranged at the tail end of the clamping needle.
4. The identifiable sequential mechanical combination lock of claim 3, wherein: the lock shell is formed by combining a lock tube and a plurality of fixing rings, and the lock tube is an open circular tube; the fixing ring is of a double-tube structure, the two rings are provided with a fan-shaped connecting area, and the locking tube is sleeved in an interlayer of the double tubes of the fixing ring.
5. The identifiable sequential mechanical combination lock of claim 4, wherein: each stroke unit is also sleeved with a marking wheel, the surface of the marking wheel is provided with coded numbers, the tail of the mark is fixedly connected with the inner side of the marking wheel, and a clamping structure is arranged between the marking wheel and the fixed wheel.
6. The identifiable sequential mechanical combination lock of claim 5, wherein: the lock cylinder circumferentially displaces 90 degrees each time, and the bolt has four orientations of 0 degree, 90 degrees, 180 degrees and 270 degrees.
7. The identifiable sequential mechanical combination lock of claim 6, wherein: the password sheet is provided with four password holes, and the password holes are distributed on the password disk based on eight directions of 0 degree, 60 degrees, 90 degrees, 150 degrees, 180 degrees, 240 degrees, 270 degrees and 330 degrees of the identification tail.
8. The identifiable sequential mechanical combination lock of claim 6, wherein: the password sheet is provided with four password holes which are distributed on the uniform 16-direction of the password disk.
9. The identifiable sequential mechanical combination lock of claim 7 or 8, wherein: the pattern of the code pieces applied to a coded lock is different or only 1-2 same.
10. The identifiable sequential mechanical combination lock of claim 9, wherein: the top of the lock post is provided with an anti-deviation ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710491635.XA CN107119998B (en) | 2017-06-20 | 2017-06-20 | Mark sequential changing mechanical puzzle lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710491635.XA CN107119998B (en) | 2017-06-20 | 2017-06-20 | Mark sequential changing mechanical puzzle lock |
Publications (2)
| Publication Number | Publication Date |
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| CN107119998A CN107119998A (en) | 2017-09-01 |
| CN107119998B true CN107119998B (en) | 2022-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710491635.XA Active CN107119998B (en) | 2017-06-20 | 2017-06-20 | Mark sequential changing mechanical puzzle lock |
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| CN (1) | CN107119998B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TW375152U (en) * | 1997-12-05 | 1999-11-21 | Ming Tay Hardware Ind Co Ltd | Improved model of combination cable lock with combination changeable |
| DE29816299U1 (en) * | 1998-09-14 | 2000-01-20 | Sudhaus Gmbh & Co | Combination lock |
| US6209368B1 (en) * | 1999-09-08 | 2001-04-03 | Chin Tsun Lee | Combination lock |
| DE10129085C1 (en) * | 2001-06-16 | 2003-01-23 | Sudhaus Gmbh & Co | The lock device |
| CN2618993Y (en) * | 2003-04-19 | 2004-06-02 | 李叙浩 | Mechanical puzzle lock |
| CN200958312Y (en) * | 2006-09-28 | 2007-10-10 | 杨秉然 | Double-braking lock structure |
| CN200999507Y (en) * | 2006-12-30 | 2008-01-02 | 赵东计 | Cipher theft-proof lock |
| US20080307838A1 (en) * | 2007-06-13 | 2008-12-18 | Sinox Co., Ltd. | Combined key and combination resettable lock |
| CN101067356A (en) * | 2007-06-15 | 2007-11-07 | 张仁俊 | Chinese phonetic alphabet coding mechanical cipher lock and method |
| US8544301B2 (en) * | 2007-06-21 | 2013-10-01 | Master Lock Company Llc | Combination lock |
| CN201460480U (en) * | 2009-07-07 | 2010-05-12 | 宁波裕泰五金有限公司 | Combination padlock favorable for accurate code adjustment |
| TW201120294A (en) * | 2009-12-08 | 2011-06-16 | mou-zheng Li | Combination door lock. |
| US8297087B1 (en) * | 2011-10-12 | 2012-10-30 | Ging Hwa Long Hardware Industry Co., Ltd. | Idiot-proof lock device that prevents a user from changing the code freely and unintentionally |
| CN102535974B (en) * | 2011-11-08 | 2014-04-02 | 吴承志 | Coded lock cylinder with multiple drive plates |
| CN103233621B (en) * | 2012-09-17 | 2015-03-11 | 魏孔明 | Keyless electromechanical double-controlled anti-theft lockset |
| CN103216163B (en) * | 2013-04-10 | 2015-07-08 | 詹显光 | Dual-functional horseshoe lock |
| DE202013004044U1 (en) * | 2013-05-02 | 2013-06-14 | Ming-Huei Chen | Automatically reset to zero combination lock |
| CN203296500U (en) * | 2013-05-08 | 2013-11-20 | 覃玉续 | Limiting mechanism of mechanical coded lock |
| CN104251079B (en) * | 2013-06-26 | 2016-08-17 | 博乐士（香港）有限公司 | A kind of mechanical code lock |
| CN207017795U (en) * | 2017-06-20 | 2018-02-16 | 丁玉斗 | Identification sequential transformations mechanical code lock |
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- 2017-06-20 CN CN201710491635.XA patent/CN107119998B/en active Active
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| CN107119998A (en) | 2017-09-01 |
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