CN111809982B

CN111809982B - Key puzzle lock

Info

Publication number: CN111809982B
Application number: CN202010582171.5A
Authority: CN
Inventors: 董俊彬; 陶俊; 李伟
Original assignee: Nanjing Liuhe Hi Tech Construction Development Co ltd
Current assignee: Nanjing Liuhe hi tech Construction Development Co.,Ltd.
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-09-21
Anticipated expiration: 2040-06-23
Also published as: CN111809982A

Abstract

The invention belongs to the technical field of safe locks, in particular to a key coded lock, which comprises a lock, a transmission plate and a fixing plate, wherein the transmission plate is arranged on the lock; the lock is designed in a cuboid structure; the lock is fixedly connected to one side of the top of the luggage case, which is close to the pull rod; the rotating grooves are all rotatably connected with rotating shafts; the rotating shaft is fixedly connected with a digit wheel; a first cavity is formed in the lockset; the first cavity is positioned right below the rotating groove; the rotating shaft extends into the first cavity; positioning wheels are sleeved on the rotating shafts in the first cavities; the side wall of the positioning wheel is provided with a clamping groove; the invention sets up the transmission plate, the fixed plate and the locking blocks which are uniformly distributed, the meshing blocks extend into the locking cavities in the locking blocks, and then the transmission plate and the fixed plate which are respectively fixed on the luggage cases at two sides are fixedly connected through the meshing between the clamping blocks and the meshing blocks, and then the combination gap of the luggage cases is strengthened and sealed through the transmission plate and the fixed plate.

Description

Key puzzle lock

Technical Field

The invention belongs to the technical field of safety type locks, and particularly relates to a key coded lock.

Background

The suitcase is one of the daily articles for daily use in current life, play the guard action to the suitcase through the trick lock that sets up on the suitcase among the prior art, phenomenon such as preventing to steal takes place, the trick lock structure on the suitcase among the prior art is comparatively simple, thereby all reach the effect of locking the protection to the suitcase through locking the zip fastener head, thereby the effect of theftproof is reached in the firm degree that this protection method all relies on the zip fastener head and the inseparable combination of zip fastener, but the zip fastener head quality of making among the prior art differs, and comparatively singly thin, it is not high to be used for its security of theftproof, and when protecting the suitcase among the prior art, the suitcase casing is comparatively firm but the zip fastener junction generally uses the cloth material, its security performance is lower, destroy thereby it very easily and reach the purpose of stealing.

The patent number of a suitcase trick lock that chinese patent issued is: 2017101473025, comprising locking components and a password component for controlling the movement of the locking components, wherein two ends of the password component are provided with one locking component, a swinging adaptor is arranged between the two locking components, the two locking components are respectively connected with two ends of the adaptor so that the two locking components can drive the adaptor to swing together to enable the two locking components to be mutually linked, the rotatable adaptor is arranged between the two locking components, and the two moving parts are respectively hinged with the adaptor so that the two locking components are mutually linked, namely, the two locking components move outwards or inwards at the same time, when the trunk body where one locking component is located is impacted under the state of correct password, the two locking components are mutually linked, so that the single locking component is not easy to move, thereby avoiding the locking hook in the locking component from rotating, therefore, the locking failure of the locking assembly is avoided, the coded lock structure is improved in the scheme, so that the coded lock is not easily influenced by the outside, but the coded lock in the scheme does not perform a protection measure on the zipper joint of the luggage case, so that the protection mechanism of the luggage case is not perfect.

Disclosure of Invention

The invention provides a key coded lock, which aims to make up for the defects of the prior art and solve the problems that the coded lock which plays a role in protecting a luggage case in the prior art has a single function, the protection mechanism of the luggage case is not perfect, and the anti-theft function of the luggage case is not sufficient.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a key coded lock, which comprises a lockset, a transmission plate and a fixing plate, wherein the transmission plate is arranged on the lockset; the lock is designed in a cuboid structure; the lock is fixedly connected to one side of the top of the luggage case, which is close to the pull rod; one side of the lockset, which is close to the pull rod, is provided with three rotating grooves which are arranged at equal intervals; the rotating grooves are all rotatably connected with rotating shafts; the rotating shaft is fixedly connected with a digit wheel; a first cavity is formed in the lockset; the first cavity is positioned right below the rotating groove; the rotating shaft extends into the first cavity; positioning wheels are sleeved on the rotating shafts in the first cavities; the side wall of the positioning wheel is provided with a clamping groove; a second cavity is formed in one side, far away from the rotating groove, of the lock; one side of the first cavity, which is close to the second cavity, is provided with first through grooves which are uniformly distributed; the first through grooves correspond to the positioning wheels one to one; the first through groove is communicated with the first cavity and the second cavity; the first through groove is in a cross-shaped design; a sliding plate is connected in the first through groove in a sliding manner; the sliding plate is in a cross-shaped design; the sliding plate is elastically connected with the first through groove through a spring; one side of the sliding plate, which is close to the positioning wheel, is designed to be matched with the clamping groove; a stretching plate is connected in the second cavity in a sliding manner; one side of the stretching plate, which is opposite to the first through groove, is provided with meshing grooves which are uniformly distributed; a first sliding groove is formed in one side of the lockset; the first sliding chute is communicated with the second cavity; the first sliding chute is internally and slidably connected with a pressing block; the pressing block is fixedly connected with the stretching plate; one side of the stretching plate, which is far away from the pressing block, is elastically connected with the side wall of the second cavity through a spring; the lock extends into the luggage case through the luggage case; the transmission plate is fixedly connected to one end of the lock positioned in the inner cavity of the luggage case; the transmission plate is fixedly connected with locking blocks which are uniformly distributed; the transmission plate is provided with a locking cavity corresponding to the locking block; the locking cavity extends into the locking block; a clamping block is connected in the locking cavity in a sliding manner; one end of the clamping block, which is far away from the lockset, is elastically connected with the locking cavity through a spring; a transmission groove is formed in the transmission plate; the transmission groove is internally and slidably connected with a steel cable; the steel cable and the clamping block are fixedly connected; the end, opposite to the moving direction, of the steel cable is fixedly connected with one end of the stretching block; the fixed plate is fixedly connected to the other side of the luggage case; the fixed plate and the transmission plate are both annular steel plates; the fixed plate is hinged with the transmission plate; one side of the fixing plate, which is close to the locking block, is provided with an engaging block; the meshing block and the clamping block are matched and meshed with each other;

the password suitcase in the prior life is popular because of the characteristics of higher safety performance, simpler structure and low manufacturing cost, but the password locking function of the prior password suitcase is simpler and more convenient, and the password lock on the suitcase locks the zipper head to achieve the function of locking and protecting the suitcase, the protection method completely depends on the firmness degree of the zipper head and the tight combination of the zipper to achieve the function of theft prevention, but the zipper heads manufactured in the prior art are different in quality and thinner and are not high in safety for theft prevention, and when the suitcase is protected in the prior art, the suitcase shell is firmer, but the zipper joint is generally made of cloth materials, the safety performance is lower, the suitcase is easy to damage to achieve the purpose of theft, when the suitcase works, the suitcase is folded after articles are loaded in the suitcase, when the suitcase needs to be unlocked, the digit wheel in the rotating groove is rotated to drive the rotating shaft to rotate, so that the positioning wheel sleeved in the first cavity of the rotating shaft rotates, the three digit wheels are respectively rotated, the digit wheel drives the positioning wheel to rotate through the rotating shaft, the card box groove formed in the positioning wheel is opposite to the first through groove, the sliding plate in the first through groove extends into the card box groove under the action of the elastic force of the spring, the sliding plate moves towards the first cavity, and one end of the sliding plate in the second cavity is separated from the engaging groove formed in the stretching plate, then the stretching plate is not limited, at the moment, the stretching plate fixedly connected with the pressing block slides towards one end of the second cavity far away from the pressing block by manually pressing the pressing block in the first sliding groove, the stretching plate pulls a steel cable fixedly connected with the stretching plate when sliding, then the clamping blocks in the locking cavity are all extruded by the spring to generate displacement through the displacement of the steel cable, the clamping blocks are separated from the meshing block, then the two sides of the luggage case are not limited and can be opened by oneself, the digital wheel and the positioning wheel are completely separated through the design of the rotating groove, further the leak of the password guessed through observing the gap between the digital wheel and the positioning wheel in the prior art is effectively avoided, meanwhile, the transmission plate, the fixed plate and the uniformly distributed locking blocks are fixedly connected between the transmission plate and the fixed plate which are respectively fixed on the luggage case at two sides through the meshing block extending into the locking cavity in the locking block and further through the meshing between the clamping blocks and the meshing block, and then combine the gap to reinforce, seal the suitcase through driving plate and fixed plate, and then the security of effectual reinforcing suitcase, driving plate and fixed plate steel sheet material make the bearing capacity of still effectual reinforcing suitcase simultaneously, make the suitcase more firm, durable when using.

Preferably, one end of the lock, which is far away from the pressing block, is fixedly connected with a lock head; the lock cylinder is rotatably connected inside the lock head; one side of the lock head close to the lock head is provided with a spring cavity; the spring cavity extends to the interior of the lock cylinder; an upper marble and a lower marble are connected in the spring cavity in a sliding manner; the lock cylinder extends into the first cavity; the lock is provided with second sliding grooves at two ends of the rotating shaft; the rotating shaft is connected with the second sliding chute in a sliding manner; a second through groove is formed in the lockset; a limiting plate is connected in the second through groove in a sliding manner; the limiting plate is in a wave-shaped design at one side close to the rotating shaft; the lock cylinder is positioned in the first cavity and fixedly connected with a cam; the rotating shaft is limited by the limiting plate and cannot slide in the second sliding groove in the initial state; when the luggage case is in work, because the establishment of a single password is easy to forget, when the password is forgotten, a key is inserted into the lock core, the shape of the key is utilized to extrude the upper marble and the lower marble, the upper marble and the lower marble are compressed into the spring cavity, the lock core is separated from the lock head, at the moment, the lock core is rotated by the key, the cam fixedly connected with the lock core in the first cavity is rotated, the limiting plate is further slid in the second through groove, the limiting plate with the wave crest in contact with the rotating shaft in the initial state aligns the wave trough with the rotating shaft, the rotating shaft is further slid in the second sliding groove, the rotating shaft slides, the positioning wheel is driven to displace, the sliding plate limited by the positioning wheel slides in the first cavity, the stretching plate is not limited, the luggage case can be opened by pressing the pressing block, the luggage case has the advantages that the lock head and the lock core are established, the second method of opening the luggage case is formed, so that the usability of the luggage case can be effectively enhanced, and the dual opening mode makes the use of the luggage case more convenient.

Preferably, the lock cylinder is designed to rotate 90 degrees inside the lock head; a return spring is fixedly connected between the bottom of the lock cylinder and the lock head; during operation, when rotating the lock core, make the limiting effect of limiting plate to the axis of rotation lose the back, open the suitcase through pressing the briquetting, loosen this moment and press the briquetting, and then make the lock core receive reset spring's effect gyration, and then make and lose the fixed key of manpower and withdraw from the lockhole, and the lock core drives the cam and resets and then makes limiting plate extrusion axis of rotation when reseing, makes axis of rotation and locating wheel all reset, and then makes the suitcase lock once more, and then conveniently once more with the suitcase closure.

Preferably, a first groove is formed in one side of the fixing plate, which is twisted with the transmission plate; the first groove is fixedly connected with a squeezing bag; the transmission plate is fixedly connected with an extrusion block corresponding to the first groove; a second groove is formed in the position, corresponding to the meshing block, of the fixing plate; the meshing block is connected in the second groove in a sliding manner; an expansion bag is fixedly connected inside the second groove; the squeezing bag is communicated with the expansion bag through a catheter; when the suitcase is in work, the meshing block protrudes out of the surface of the fixed plate, on one hand, the meshing block is damaged when the suitcase is used, on the other hand, when the meshing block is impacted by external force, the meshing block cannot be inserted into the locking cavity, the suitcase locking function is easy to fail, through the arrangement of the first groove and the second groove, the opening and closing of the suitcase are utilized, the extrusion block on the transmission plate is further used for extruding and releasing the extrusion bag on the fixed plate, the extrusion bag is reset to extract gas in the expansion bag when the suitcase is opened, the meshing block is further retracted into the second groove, in the process of closing the suitcase, the expansion bag is gradually expanded to push the meshing block out of the second groove, and finally, the locking of the suitcase is completed, on the one hand, when the suitcase is opened, the meshing block is retracted, so that the meshing block is prevented from being damaged while the human body is prevented from being damaged, meanwhile, when the trunk is locked, the extrusion force of the expansion bag can effectively enhance the locking degree of the trunk, so that the trunk is safer.

Preferably, a third groove is formed in one side, close to the fixing plate, of the lock; the third groove extends into the rotating groove; the third groove is internally and slidably connected with a poking plate; the poking plate is elastically connected with the third groove through a spring; one side of the poking plate, which is close to the rotating groove, is fixedly connected with an elastic rope; the elastic rope is fixedly connected with the rotating shaft; the other half of the luggage case is fixedly connected with a squeezing plate corresponding to the toggle plate; the poking plate is used for pulling the elastic rope through the elastic force of the spring when the fixed plate and the transmission plate are separated, so that the elastic rope drives the rotating shaft to rotate, and the number wheels are disordered; the during operation, through rotating the digit wheel to align between card and the groove on making the locating wheel and the sliding plate, and then open the suitcase through pressing down the briquetting, open the back when the suitcase, the stripper plate rotates the one side suitcase that has linked firmly the fixed plate, and then make the driver plate lose the restriction, the driver plate drives the elastic cord pulling under the effort of spring and rotates the wheel, and then breaks in disorder to the digit on the digit wheel, can effectually avoid forgetting behind opening the suitcase and dial indiscriminate digit wheel, and then make the password reveal.

Preferably, the elastic ropes correspond to the rotating shafts one by one, and the elastic forces of the elastic ropes are different; when the digital wheel works, the shifting plate has certain displacement change under the elastic acting force of the spring, and the elastic ropes with different elastic forces are used, so that the action effect of the shifting plate on the rotating shaft under the condition of displacement exists in certain difference, the change degree of the digital wheel is effectively irregular, and the artificial guess and password decoding are effectively avoided.

The invention has the following beneficial effects:

1. according to the key coded lock, the digital wheel and the positioning wheel are completely separated through the design of the rotating groove, so that a leak of a password is effectively avoided by observing a gap between the digital wheel and the positioning wheel and further speculating in the prior art, meanwhile, the transmission plate, the fixing plate and the uniformly distributed locking blocks are arranged, the meshing blocks extend into the locking cavities in the locking blocks, the transmission plate and the fixing plate which are respectively fixed on the luggage cases at two sides are fixedly connected through meshing between the clamping blocks and the meshing blocks, the luggage case combination gap is strengthened and sealed through the transmission plate and the fixing plate, so that the safety of the luggage case is effectively enhanced, meanwhile, the bearing capacity of the luggage case is effectively enhanced due to the fact that the transmission plate and the fixing plate are made of steel plate materials, and the luggage case is firmer and more durable in use.

2. According to the key coded lock, the opening and closing of the luggage case are utilized, so that the extrusion block on the transmission plate extrudes and releases the extrusion bag on the fixing plate, the extrusion bag is reset to extract gas in the expansion bag when the luggage case is opened, the engagement block is retracted into the second groove, the expansion bag is gradually expanded to push the engagement block out of the second groove in the closing process of the luggage case, and finally the locking of the luggage case is completed.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a front view of the present invention;

FIG. 2 is a partial cross-sectional view of the lock;

FIG. 3 is a partial cross-sectional view taken at A-A in FIG. 2;

FIG. 4 is a cross-sectional view of the drive plate;

FIG. 5 is a partial cross-sectional view taken at B-B of FIG. 4;

in the figure: the lock comprises a lock 1, a rotating shaft 11, a digit wheel 12, a positioning wheel 13, a sliding plate 14, a stretching plate 15, a pressing block 16, a transmission plate 2, a locking block 21, a fixture block 22, a fixing plate 3, an engaging block 31, a squeezing bag 32, a squeezing block 33, an expansion bag 34, a lock head 4, a lock core 41, an upper marble 42, a lower marble 43, a limiting plate 44, a cam 45, a poking plate 5, an elastic rope 51 and a squeezing plate 52.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 5, the key combination lock of the present invention comprises a lock 1, a transmission plate 2 and a fixing plate 3; the lockset 1 is designed into a cuboid structure; the lockset 1 is fixedly connected to one side of the top of the luggage case, which is close to the pull rod; one side of the lockset 1, which is close to the pull rod, is provided with three rotating grooves which are arranged at equal intervals; the rotating grooves are all rotatably connected with rotating shafts 11; the rotating shaft 11 is fixedly connected with a digit wheel 12; a first cavity is formed in the lockset 1; the first cavity is positioned right below the rotating groove; the rotating shaft 11 extends into the first cavity; positioning wheels 13 are sleeved on the rotating shaft 11 in the first cavity; a clamping groove is formed in the side wall of the positioning wheel 13; a second cavity is formed in one side, away from the rotating groove, of the lockset 1; one side of the first cavity, which is close to the second cavity, is provided with first through grooves which are uniformly distributed; the first through grooves correspond to the positioning wheels 13 one by one; the first through groove is communicated with the first cavity and the second cavity; the first through groove is in a cross-shaped design; a sliding plate 14 is connected in the first through groove in a sliding manner; the sliding plate 14 is of a cross-shaped design; the sliding plate 14 is elastically connected with the first through groove through a spring; one side of the sliding plate 14, which is close to the positioning wheel 13, is designed to be matched with the clamping groove; a stretching plate 15 is connected in the second cavity in a sliding manner; the side, opposite to the first through groove, of the stretching plate 15 is provided with meshing grooves which are uniformly distributed; a first sliding groove is formed in one side of the lockset 1; the first sliding chute is communicated with the second cavity; a pressing block 16 is connected in the first sliding chute in a sliding manner; the pressing block 16 is fixedly connected with the stretching plate 15; one side of the stretching plate 15, which is far away from the pressing block 16, is elastically connected with the side wall of the second cavity through a spring; the lockset 1 penetrates through the luggage case and extends into the luggage case; the transmission plate 2 is fixedly connected to one end of the lockset 1, which is positioned in the inner cavity of the trunk; the transmission plate 2 is fixedly connected with locking blocks 21 which are uniformly distributed; the transmission plate 2 is provided with a locking cavity corresponding to the locking block 21; the locking cavity extends into the locking block 21; a clamping block 22 is connected in the locking cavity in a sliding manner; one end of the fixture block 22, which is far away from the lockset 1, is elastically connected with the locking cavity through a spring; a transmission groove is formed in the transmission plate 2; the transmission groove is internally and slidably connected with a steel cable; the steel cable is fixedly connected with the fixture block 22; the end, opposite to the moving direction, of the steel cable is fixedly connected with one end of the stretching block; the fixed plate 3 is fixedly connected to the other side of the luggage case; the fixed plate 3 and the transmission plate 2 are both annular steel plates; the fixed plate 3 is hinged with the transmission plate 2; an engaging block 31 is arranged on one side of the fixing plate 3 close to the locking block 21; the engaging block 31 and the fixture block 22 are mutually matched and engaged;

the password suitcase in the prior life is popular because of the characteristics of higher safety performance, simpler structure and low manufacturing cost, but the password locking function of the prior password suitcase is simpler and more convenient, and the password lock on the suitcase locks the zipper head to achieve the function of locking and protecting the suitcase, the protection method completely depends on the firmness degree of the zipper head and the tight combination of the zipper to achieve the function of theft prevention, but the zipper heads manufactured in the prior art are different in quality and thinner and are not high in safety for theft prevention, and when the suitcase is protected in the prior art, the suitcase shell is firmer, but the zipper joint is generally made of cloth materials, the safety performance is lower, the suitcase is easy to damage to achieve the purpose of theft, when the suitcase works, the suitcase is folded after articles are loaded in the suitcase, thereby the fixed plate 3 and the transmission plate 2 are gradually closed, the engaging block 31 arranged on the fixed plate 3 is gradually inserted into the locking cavity along with the closing of the luggage case, the engaging block 31 extrudes the fixture block 22 in the locking cavity, the fixture block 22 extrudes the spring and completely extends into the locking cavity along with the engaging block 31, the fixture block 22 is clamped into the engaging block 31, thereby locking is formed, when unlocking is needed, the digit wheel 12 in the rotating groove is rotated, the digit wheel 12 drives the rotating shaft 11 to rotate, further the positioning wheel 13 sleeved with the rotating shaft 11 in the first cavity is rotated, the three digit wheels 12 are respectively rotated, the digit wheel 12 drives the positioning wheel 13 to rotate through the rotating shaft 11 through a preset password, the card box groove arranged on the positioning wheel 13 is opposite to the first through groove, further the sliding plate 14 in the first through groove is extended into the card box groove under the action of the spring force, the sliding plate 14 moves towards the first cavity, so that one end of the sliding plate 14, which is positioned in the second cavity, is separated from an engagement groove formed in the stretching plate 15, so that the stretching plate 15 is not limited, at the moment, the pressing block 16 in the first sliding groove is manually pressed, the stretching plate 15, which is fixedly connected with the pressing block 16, slides towards one end, which is far away from the pressing block 16, of the second cavity, when the stretching plate 15 slides, a steel cable which is fixedly connected with the stretching plate 15 is pulled, so that the clamping blocks 22 in the locking cavity are all pressed by the spring to generate displacement through the displacement of the steel cable, the clamping blocks 22 are separated from the engagement block 31, so that the two sides of the luggage case can be automatically opened without limitation, the digit wheel 12 is completely separated from the positioning wheel 13 through the design of the rotation groove, further, the problem that the password leak is presumed by observing the gap between the digit wheel 12 and the positioning, fixed plate 3 and evenly distributed's locking block 21, stretch into the locking chamber in the locking block 21 through meshing block 31, and then through the meshing between fixture block 22 and the meshing block 31, make and fix fixed connection between 2 and the fixed plate 3 on the suitcase of both sides respectively, and then combine the gap to strengthen the suitcase through driving plate 2 and fixed plate 3, seal, and then the security of effectual reinforcing suitcase, the bearing capacity of effectual reinforcing suitcase is made to driving

plate

2 and 3 steel sheet materials of fixed plate simultaneously, make the suitcase more firm when using, it is durable.

As an embodiment of the invention, a lock head 4 is fixedly connected to one end of the lock 1, which is far away from the pressing block 16; a lock core 41 is rotatably connected inside the lock head 4; a spring cavity is formed in one side, close to the lock head 4, of the lock head 4; the spring cavity extends to the interior design of the lock cylinder 41; an upper marble 42 and a lower marble 43 are connected in the spring cavity in a sliding manner; the lock core 41 extends into the first cavity; the lock 1 is provided with second sliding grooves at two ends of the rotating shaft 11; the rotating shaft 11 is connected with the second sliding chute in a sliding manner; a second through groove is formed in the lockset 1; a limit plate 44 is connected in the second through groove in a sliding manner; the limiting plate 44 is in a wave-shaped design at one side close to the rotating shaft 11; the lock cylinder 41 is positioned in the first cavity and fixedly connected with a cam 45; in the initial state, the rotating shaft 11 is limited by the limiting plate 44 and cannot slide in the second sliding chute; when the suitcase works, because the establishment of a single password is easy to forget, when the password is forgotten, a key is inserted into the lock core 41, the upper marble 42 and the lower marble 43 are extruded by utilizing the shape of the key, the upper marble 42 and the lower marble 43 are compressed into the spring cavity, the lock core 41 is separated from the lock head 4, at the moment, the lock core 41 is rotated by the key, the cam 45 fixedly connected with the lock core 41 in the first cavity is rotated, the limiting plate 44 slides in the second through groove, the limiting plate 44 in contact with the rotating shaft 11 in the initial state aligns the wave trough with the rotating shaft 11, the rotating shaft 11 slides in the second through groove, the rotating shaft 11 slides, the positioning wheel 13 is driven to displace, the sliding plate 14 limited by the positioning wheel 13 slides in the first cavity, the stretching plate 15 is not limited, and the suitcase can be opened by pressing the block 16, the invention forms a second method for opening the luggage case by arranging the lock head 4 and the lock core 41, can effectively enhance the usability of the luggage case, and the dual opening mode ensures that the luggage case is more convenient to use.

As an embodiment of the present invention, the lock cylinder 41 is designed to rotate 90 degrees inside the lock head 4; a return spring is fixedly connected between the bottom of the lock cylinder 41 and the lock head 4; when the suitcase works, after the lock cylinder 41 is rotated to enable the limiting effect of the limiting plate 44 on the rotating shaft 11 to be lost, the suitcase is opened through the pressing block 16, the pressing block 16 is loosened at the moment, the lock cylinder 41 is enabled to rotate under the action of the return spring, and then the key which is lost due to manual fixing is enabled to exit from the lock hole, and when the lock cylinder 41 is reset, the cam 45 is driven to reset, so that the limiting plate 44 extrudes the rotating shaft 11, the rotating shaft 11 and the positioning wheel 13 are enabled to reset, and then the suitcase can be locked again, and further the suitcase can be conveniently locked again.

As an embodiment of the present invention, a first groove is formed on one side of the fixed plate 3 twisted with the transmission plate 2; the first groove is fixedly connected with a squeezing bag 32; the transmission plate 2 is fixedly connected with an extrusion block 33 corresponding to the first groove; a second groove is formed in the position, corresponding to the meshing block 31, of the fixing plate 3; the engaging block 31 is slidably connected in the second groove; the inside of the second groove is fixedly connected with an expansion bag 34; the squeezing bag 32 is communicated with the expansion bag 34 through a catheter; when the suitcase works, because the meshing block 31 is designed to protrude out of the surface of the fixed plate 3, on one hand, the suitcase is easy to hurt the human body when in use, and meanwhile, when the meshing block 31 is impacted by external force, the meshing block 31 is deformed, can not be inserted into the locking cavity and is easy to cause the suitcase locking function failure, through the arrangement of the first groove and the second groove, the opening and closing of the suitcase is utilized, the extrusion block 33 on the transmission plate 2 is further used for extruding and loosening the extrusion bag 32 on the fixed plate 3, so that when the suitcase is opened, the extrusion bag 32 is reset to extract gas in the expansion bag 34, so that the meshing block 31 is contracted into the second groove, and in the process of closing the suitcase, the expansion bag 34 is gradually expanded to push the meshing block 31 out of the second groove, and finally, the suitcase is locked, on the other hand, when the suitcase is opened, the meshing block 31 is stored, so that the damage to the human body can be avoided, the meshing block 31 is prevented from being damaged, and meanwhile, when the suitcase is locked, the locking degree of the suitcase can be effectively enhanced through the extrusion force of the expansion bag 34, so that the suitcase is safer.

As an embodiment of the present invention, a third groove is formed on one side of the lock 1 close to the fixing plate 3; the third groove extends into the rotating groove; a toggle plate 5 is connected in the third groove in a sliding manner; the toggle plate 5 is elastically connected with the third groove through a spring; one side of the toggle plate 5, which is close to the rotating groove, is fixedly connected with an elastic rope 51; the elastic rope 51 is fixedly connected with the rotating shaft 11; the other half of the luggage case is fixedly connected with a squeezing plate 52 corresponding to the toggle plate 5; the poking plate 5 is used for pulling the elastic rope 51 through the elastic force of the spring when the fixed plate 3 and the transmission plate 2 are separated, so that the elastic rope 51 drives the rotating shaft 11 to rotate, and the number wheel 12 is disordered; the during operation, through rotating digit wheel 12, thereby align between card and the groove on messenger positioning wheel 13 and the sliding plate 14, and then open the suitcase through pressing down briquetting 16, open the back when the suitcase, stripper plate 52 rotates the one side suitcase that has linked firmly fixed plate 3, and then make and dial plate 5 and lose the restriction, dial plate 5 and drive the elastic cord 51 pulling under the effort of spring and rotate the wheel, and then disorder the digit on digit wheel 12, can effectually avoid forgetting to dial indiscriminate digit wheel 12 after opening the suitcase, and then make the password reveal.

As an embodiment of the present invention, the elastic cords 51 correspond to the rotating shafts 11 one by one, and the elastic forces of the elastic cords 51 are different from each other; when the numerical wheel works, because the shifting plate 5 has a certain displacement change under the elastic acting force of the spring, the elastic ropes 51 with different elastic forces are used, so that the acting effect of the shifting plate 5 on the rotating shaft 11 under the condition of displacement can have a certain difference, the change degree of the numerical wheel 12 is effectively irregular, and the password is effectively prevented from being guessed and decoded artificially.

The specific implementation flow is as follows:

when the suitcase works, after articles are loaded in the suitcase, the suitcase is folded, so that the fixed plate 3 and the transmission plate 2 are gradually drawn close, the meshing block 31 arranged on the fixed plate 3 is gradually inserted into the locking cavity along with the drawing close of the suitcase, the clamping block 22 in the locking cavity is extruded by the meshing block 31 to extrude the spring by the clamping block 22, the clamping block 22 is clamped into the meshing block 31 along with the complete extension of the meshing block 31, so as to form locking, when the suitcase needs to be unlocked, the digital wheel 12 drives the rotating shaft 11 to rotate by rotating the digital wheel 12 in the rotating groove, so that the positioning wheel 13 sleeved in the first cavity of the rotating shaft 11 rotates, the three digital wheels 12 are respectively rotated, the digital wheel 12 drives the positioning wheel 13 to rotate by the rotating shaft 11 through a preset password, the clamping box groove arranged on the positioning wheel 13 is opposite to the first through groove, and the sliding plate 14 in the first through groove is extended into the clamping box groove under the action of the spring elasticity, the sliding plate 14 moves into the first cavity, so that one end of the sliding plate 14, which is positioned in the second cavity, is separated from an engagement groove formed in the stretching plate 15, so that the stretching plate 15 is not limited, at the moment, the pressing block 16 in the first sliding groove is manually pressed, the stretching plate 15, which is fixedly connected with the pressing block 16, slides towards one end, which is far away from the pressing block 16, of the second cavity, when the stretching plate 15 slides, a steel cable fixedly connected with the stretching plate 15 is pulled, so that the clamping block 22 in the locking cavity is uniformly pressed to displace through the displacement of the steel cable, the clamping block 22 is separated from the engagement block 31, so that the two sides of the luggage case can be automatically opened without limitation, when a password is forgotten, a key is inserted into the lock cylinder 41, so that the upper marble 42 and the lower marble 43 are pressed by using the shape of the key, and the upper marble 42 and the lower marble 43 are compressed into the spring cavity, so that the lock cylinder 41 is separated from the lock cylinder 4, at this moment, the lock cylinder 41 is rotated by a key, and then the cam 45 fixedly connected with the lock cylinder 41 in the first cavity is rotated, and then the limiting plate 44 slides in the second through groove, so that the limiting plate 44 with the wave crest in contact with the rotating shaft 11 in the initial state aligns the wave trough with the rotating shaft 11, and further the rotating shaft 11 slides in the second chute, and the rotating shaft 11 slides, thereby driving the positioning wheel 13 to displace, and further the sliding plate 14 limited by the positioning wheel 13 slides in the first cavity, so that the stretching plate 15 loses the limitation, and the luggage box can be opened by pressing the pressing block 16.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A key combination lock is characterized in that: comprises a lockset (1), a transmission plate (2) and a fixed plate (3); the lockset (1) is designed into a cuboid structure; the lock (1) is fixedly connected to one side, close to the pull rod, of the top of the luggage case; one side of the lockset (1) close to the pull rod is provided with three rotating grooves which are arranged at equal intervals; the rotating grooves are all rotatably connected with rotating shafts (11); a digit wheel (12) is fixedly connected to the rotating shaft (11); a first cavity is formed in the lockset (1); the first cavity is positioned right below the rotating groove; the rotating shaft (11) extends into the first cavity; positioning wheels (13) are sleeved in the first cavities of the rotating shafts (11); the side wall of the positioning wheel (13) is provided with a clamping groove; a second cavity is formed in one side, far away from the rotating groove, of the lockset (1); one side of the first cavity, which is close to the second cavity, is provided with first through grooves which are uniformly distributed; the first through grooves correspond to the positioning wheels (13) one by one; the first through groove is communicated with the first cavity and the second cavity; the first through groove is in a cross-shaped design; a sliding plate (14) is connected in the first through groove in a sliding manner; the sliding plate (14) is of a cross-shaped design; the sliding plate (14) is elastically connected with the first through groove through a spring; one side of the sliding plate (14) close to the positioning wheel (13) is designed to be matched with the clamping groove; a stretching plate (15) is connected in the second cavity in a sliding manner; meshing grooves which are uniformly distributed are formed in one side, opposite to the first through groove, of the stretching plate (15); a first sliding groove is formed in one side of the lockset (1); the first sliding chute is communicated with the second cavity; a pressing block (16) is connected in the first sliding groove in a sliding manner; the pressing block (16) is fixedly connected with the stretching plate (15); one side of the stretching plate (15) far away from the pressing block (16) is elastically connected with the side wall of the second cavity through a spring; the lockset (1) penetrates through the luggage case and extends into the luggage case; the transmission plate (2) is fixedly connected to one end, located at the inner cavity of the luggage case, of the lockset (1); the transmission plate (2) is fixedly connected with locking blocks (21) which are uniformly distributed; the transmission plate (2) is provided with a locking cavity corresponding to the locking block (21); the locking cavity extends into the locking block (21) and is designed; a clamping block (22) is connected in the locking cavity in a sliding manner; one end of the clamping block (22) far away from the lockset (1) is elastically connected with the locking cavity through a spring; a transmission groove is formed in the transmission plate (2); the transmission groove is internally and slidably connected with a steel cable; the steel cable is fixedly connected with the fixture block (22); the end, opposite to the moving direction, of the steel cable is fixedly connected with one end of the stretching block; the fixed plate (3) is fixedly connected to the other side of the luggage case; the fixed plate (3) and the transmission plate (2) are both annular steel plates; the fixed plate (3) is hinged with the transmission plate (2); an engaging block (31) is arranged on one side, close to the locking block (21), of the fixing plate (3); the engaging block (31) and the clamping block (22) are mutually matched and engaged;

one end of the lock (1) far away from the pressing block (16) is fixedly connected with a lock head (4); a lock core (41) is rotatably connected inside the lock head (4); a spring cavity is formed in one side, close to the lock head (4), of the lock head (4); the spring cavity extends to the internal design of the lock cylinder (41); an upper marble (42) and a lower marble (43) are connected in the spring cavity in a sliding manner; the lock cylinder (41) extends into the first cavity; the lock (1) is provided with second sliding grooves at two ends of the rotating shaft (11); the rotating shaft (11) is connected with the second sliding chute in a sliding manner; a second through groove is formed in the lockset (1); a limiting plate (44) is connected in the second through groove in a sliding manner; the limiting plate (44) is in a wave-shaped design at one side close to the rotating shaft (11); the lock cylinder (41) is positioned in the first cavity and fixedly connected with a cam (45); in the initial state, the rotating shaft (11) is limited by the limiting plate (44) and cannot slide in the second sliding groove;

the lock core (41) is designed to rotate 90 degrees in the lock head (4); a return spring is fixedly connected between the bottom of the lock cylinder (41) and the lock head (4);

a first groove is formed in one side, which is twisted with the transmission plate (2), of the fixing plate (3); a squeezing bag (32) is fixedly connected in the first groove; the transmission plate (2) is fixedly connected with an extrusion block (33) corresponding to the first groove; a second groove is formed in the position, corresponding to the meshing block (31), of the fixing plate (3); the engagement block (31) is in sliding connection in the second groove; an expansion bag (34) is fixedly connected inside the second groove; the squeezing bag (32) is communicated with the expansion bag (34) through a catheter;

a third groove is formed in one side, close to the fixing plate (3), of the lockset (1); the third groove extends into the rotating groove; a poking plate (5) is connected in the third groove in a sliding manner; the toggle plate (5) is elastically connected with the third groove through a spring; one side of the poking plate (5) close to the rotating groove is fixedly connected with an elastic rope (51); the elastic rope (51) is fixedly connected with the rotating shaft (11); the other half of the luggage case is fixedly connected with a squeezing plate (52) corresponding to the toggle plate (5); the poking plate (5) is used for pulling the elastic rope (51) through the elastic force of the spring when the fixed plate (3) and the transmission plate (2) are separated, so that the elastic rope (51) drives the rotating shaft (11) to rotate, and the number wheel (12) is disordered;

the elastic ropes (51) correspond to the rotating shafts (11) one by one, and the elastic forces of the elastic ropes (51) are different.