CN110130730A

CN110130730A - A kind of unlocking method of flux density code primary and secondary lock

Info

Publication number: CN110130730A
Application number: CN201910415608.3A
Authority: CN
Inventors: 胡振云
Original assignee: Individual
Current assignee: Lu'an Yongzhen Grizzly Electrical And Mechanical Technology Co ltd
Priority date: 2019-05-18
Filing date: 2019-05-18
Publication date: 2019-08-16
Anticipated expiration: 2039-05-18
Also published as: CN110130730B

Abstract

The present invention provides a kind of unlocking methods of flux density code primary and secondary lock, be in step: mother key is inserted into the first internal cylinder cylinder by user first, the pellet of protrusion is pushed back and is completely disposed in the first internal cylinder cylinder/outer lock core cylinder by zigzag protrusion on female key cylinder, and pellet is released to the rotational restraint between the first internal cylinder cylinder and outer lock core cylinder；Then, user's rotational handle, the first internal cylinder cylindrical body synchronous rotate and confining part are made to release the constraint to sub- key, and sub- key is switched to stretching state by retracted mode and is inserted into the second internal cylinder cylinder；Then, sub- key by magnetic force it is attracting/repel each other the constraint for releasing position-limit mechanism between external lock core cylinder and the second internal cylinder cylinder, further rotational handle, the second internal cylinder barrel body rotation and drives plectrum to rotate synchronously, and plectrum makes lock tongue bounce back and be detached from doorframe by moving part；Finally, rotating backward handle and extracting, the pressing of sub- key column is retracted in female key cylinder by user manually.

Description

A kind of unlocking method of flux density code primary and secondary lock

Technical field

The present invention relates to a kind of theftproof lock technical fields, and in particular to a kind of unlocking method of flux density code primary and secondary lock.

Background technique

Theftproof lock is anti-theft tool common in daily life, is widely used in gate, safety box, on safety cabinet, general Logical theftproof lock limits rotatable internal cylinder and fixed outer lock core by the pellet of different length, only passes through Pellet is completely disposed in internal cylinder/outer lock core by matched key, and internal cylinder can rotate under the drive of key, internal lock Core, which rotates, drives plectrum rotation, and plectrum makes lock tongue bounce back and be detached from doorframe by moving part, is protruding to by pellet interior Length in lock core is different encode antitheft, and anti-theft performance is general.

In recent years, there is face unlock intelligent anti-theft lock, unlocked by fingerprint intelligent anti-theft lock etc., still, intelligent anti-theft Structure is complicated for lock, principle is complicated, production cost is high, is difficult to popularization and application to huge numbers of families, for this purpose, the present inventor is related to one Kind clever structure, principle is simple, anti-theft performance is strong, coding is diversified, low production cost, the flux density numeral convenient for popularization and application The unlocking method of mother's lock.

Summary of the invention

To solve the deficiencies in the prior art, the object of the present invention is to provide a kind of clever structure, principles simply, anti-theft performance By force, encode diversification, low production cost, convenient for popularization and application a kind of flux density code primary and secondary lock unlocking method.

To realize the above-mentioned technical purpose, the technical solution adopted in the present invention is as follows.

A kind of unlocking method of flux density code primary and secondary lock, is in step:

(1) female lock unlocking phases；

S1: mother key is inserted into the first internal cylinder cylinder by user first, and zigzag protrusion is by the pellet of protrusion on female key cylinder It pushes back and is completely disposed in the first internal cylinder cylinder/outer lock core cylinder, at this point, pellet releasing is to the first internal cylinder cylinder and outside Rotational restraint between lock core cylinder；

Plug body includes being in the form of a column both ends open and fixed and arranged outer lock core cylinder, coaxial arrangement in outer lock core cylinder intracorporal the One internal cylinder cylinder and the second internal cylinder cylinder, the first internal cylinder cylinder and the second internal cylinder cylinder are the ring of both ends open Body structure, wherein one end is outer end to outer lock core cylinder, the other end is inner end, and the first internal cylinder cylinder arranges close to its outer end, the Two internal cylinder cylinders are arranged close to its inner end, are provided between the first internal cylinder cylinder and outer lock core cylinder for constraining rotation Pellet and collectively constituting is provided between female lock, the second internal cylinder cylinder and outer lock core cylinder for constrain the position restrainer rotated Structure and collectively constitute sub- lock, the key body include handle, with the matched mother key of female locking phase, matched with sub- locking phase Sub- key and the confining part being set between mother key and sub- key, mother key coaxial sleeve are set to the outside of sub- key, son Key is arranged to the retracted mode that can mutually switch and stretching state and original state confining part is constrained to retraction shape State；

Pellet between mother key and female lock is protruding in the first internal cylinder cylinder and the length of not homology functor protrusion is different, female key Spoon includes female key cylinder that sun handle is fixedly connected, and it is convex to offer the zigzag to match with pellet on the periphery of female key cylinder It rises, cooperation unlock is same as the prior art between mother key and female lock；

(2) sub- key stretches out the stage；

S2: user's rotational handle, the first internal cylinder cylindrical body synchronous rotate and confining part are made to release the constraint to sub- key, son Key is switched to stretching state by retracted mode and is inserted into the second internal cylinder cylinder；

The sub- key includes the sub- key column for axially constituting slide-and-guide cooperation along it with female key cylinder, and sub- key column stretches out female key cylinder Length and the diameter of sub- key column match with the second internal cylinder cylinder, sub- key column coaxially offers socket close to handle one end Slot covers medium position of the access slot along its groove depth direction and coaxially offers built-in step two, and built-in step two is extended through to handle, The diameter of built-in step two is greater than the diameter of set access slot, covers in access slot and is provided with the guide rod being fixedly connected with handle, sub- key column with Guide rod axially constitutes slide-and-guide cooperation along it, and the external activity of the guide rod is arranged with percussion spring, percussion spring one end with Built-in step two contradicts, the other end and handle contradict and fire the elastic force of spring always by the built-in step two of handle direction；

The sub- key column is provided with external step, female key cylinder close to handle one end and is provided with and external step phase away from handle one end Matched built-in step three, external step and built-in step three-phase interworking are shared in the row for constraining the female key cylinder sliding in sub- key edge Journey；

Mother key match cooperation rotation with mother's lock and sub- key is made to switch to stretching state, and process is, mother key is inserted into the In one internal cylinder cylinder, female key cylinder releases the rotational restraint between the external lock core cylinder of pellet and the first internal cylinder cylinder, at this time It rotates clockwise handle and drives the rotation of the first internal cylinder cylindrical body synchronous, the first internal cylinder cylinder will rotate synchronously with movable slider, is sliding Block will drive guide protrusions to rotate synchronously, and guide protrusions are slided along the triggering section of guide groove, guide groove and guide protrusions Match the radial direction sliding close to each other that will make two sliding blocks along the first internal cylinder cylinder, sliding block will be inserted into constrained port and Constraint block is pushed, constraint block overcomes the elastic force effect of restricted spring to bounce back in mounting groove, and confining part releases antithetical phrase The constraint of key column, at this point, percussion spring, by the slide outside of the female key cylinder of promotor site key column direction, sub- key switches to stretching state And it is inserted into the second internal cylinder cylinder；

(3) sub- lock unlocking phases；

S3: sub- key by magnetic force it is attracting/repelling each other releases position-limit mechanism between external lock core cylinder and the second internal cylinder cylinder Constraint, further rotational handle the second internal cylinder barrel body rotation and drives plectrum to rotate synchronously, and plectrum is made by moving part Lock tongue bounces back and is detached from doorframe；

The position-limit mechanism includes being opened in outside outer lock core cylinder and being through to its internal limit hole one and limit The axial direction of hole two, limit hole one and limit hole two is parallel to each other to and each parallel to the radial direction of outer lock core cylinder, position-limit mechanism Further include being opened in outside the second internal cylinder cylinder and being through to its internal limit hole three and limit hole four, limit hole three with The axial direction of limit hole four is parallel to each other and each parallel to the radial direction of the second internal cylinder cylinder, and limit hole three and limit hole four are close One end of second internal cylinder inner barrel is provided with built-in step one, and under original state, limit hole one is coaxial right with limit hole three It answers, limit hole two is coaxial corresponding with limit hole four；

It is provided in the limit hole one under its axially slidable limited post one, original state, limited post one extends to limit Length in the hole three of position is X, is provided in limit hole three along its axially slidable limited post three, limited post one and limited post three An end face inconsistent and close to each other is arranged to the arcwall face to match with the second internal cylinder cylinder periphery, limit hole one and limit Position hole two is provided with the sealing plug for constituting with it and being threadedly coupled cooperation, limit hole away from the second internal cylinder cylinder place open at one end Limit spring one is provided in one, one one end of limit spring is contradicted with sealing plug, the other end and limited post one are contradicted and limited The elastic force of position spring one is directed toward limited post one by sealing plug always, and limited post three is same close to second internal cylinder inner barrel one end Axis is fixedly installed cylindrical magnetic iron one, and magnet three is embedded on the periphery of the sub- key column, and sub- key column is inserted into the second internal cylinder In cylinder, the magnet one and end face close to each other of magnet three is mutually exclusive and the size of repulsive force drives limited post one towards limit The displacement that position hole one moves is equal to X；

Being provided in the limit hole four can extend to along the limited post four that its axial direction is slided, original state lower limit column four Length in limit hole two is Y, and being provided in limit hole two can be along its limited post two in axial sliding, limited post two and limited post Four is inconsistent and one section close to each other is completely arranged to the arcwall face to match with the second internal cylinder cylinder periphery, and limited post four leans on One end face of nearly second lock core inner barrel is coaxially fixedly installed cylindrical magnetic iron two, and the outer cover of magnet two is equipped with limit spring Two, two one end of limit spring is fixedly connected with limited post four, the other end is fixedly connected with built-in step one and limit spring two Elastic force be used to limited post four being maintained at original state, magnet four is embedded on the periphery of the sub- key column, sub- key column is inserted Enter in the second internal cylinder cylinder, magnet two attracts each other with the end face close to each other of magnet four and the driving of the size of attraction limits Position column four is equal to Y towards the displacement moved in limit hole four；

Limit hole one, limit hole three and its internal structure together constitute limit component one, limit hole two and limit hole four And its internal structure together constitutes limit component two, limit component one is arbitrarily provided with multiple and each parallel to external lock The radial arrangement of core cylinder, limit component two are arbitrarily provided with multiple and each parallel to outer lock core cylinder radial direction and arrange, son The outside of key column is provided with corresponding matched magnet three and magnet four, passes through any of limit component one and limit component two Permutation and combination forms the anti-theft cipher of son lock；

Sub- key is inserted into the second internal cylinder cylinder and position-limit mechanism is made to release the rotational restraint to the second internal cylinder cylinder, mistake Cheng Wei, after confining part releases the constraint limit to sub- key, sub- key can not switch to rapidly stretching state, and user is clockwise Rotational handle, handle band mover key column rotate synchronously, and when guiding raised line and raised line slot to align, sub- key column is introversive by female key cylinder Outer stretching, sub- key column are inserted into the second internal cylinder cylinder, at this point, several magnet three and several magnet one are relatively just and two Person's repulsive force effect driving limited post one is equal to X, several magnet four and several magnet two-phases towards the displacement that limit hole one moves To just and under the effect of the two attraction driving limited post four towards the displacement moved in limit hole four be equal to Y, at this point, limit Column one is completely disposed in limit hole one, and limited post two is completely disposed in limit hole two, and limited post three is completely disposed in limit hole three, Limited post four is completely disposed in limit hole four, and position-limit mechanism releases the rotational restraint to the second internal cylinder cylinder, and user is further Rotational handle, the second internal cylinder cylinder drive plectrum rotation, and plectrum makes lock tongue bounce back and separates with doorframe, and security door is opened；

S4: during extracting key body, rotating backward handle and extract, in the process, the driving limit of limit spring one Position component one resets, and limit spring two drives limit component two to reset, and position-limit mechanism restores the rotation to the second internal cylinder cylinder Constraint, pellet restore the rotational restraint to the first internal cylinder cylinder, and then, the pressing of sub- key column is retracted to female key cylinder manually by user Interior, sub- key is constrained in retracted mode by confining part.

Further optimize or improve as this programme.

The confining part is set between sub- key column and female key cylinder and close to handle arrangements, and confining part includes opening Mounting groove on sub- key column periphery, mounting groove setting there are two and along the axially symmetric disposition of sub- key column, mounting groove Notch at be provided with and can be provided with restricted spring, restricted spring one end in the constraint block of sub- key column radial floating, mounting groove Be fixedly connected with the slot bottom of mounting groove, the other end is fixedly connected with constraint block, offered on the periphery of female key cylinder and constraint block The constrained port to match, constraint block is inserted into constrained port under original state.

Further optimize or improve as this programme.

The outer end of the outer lock core cylinder is coaxially arranged with annular convex platform, and boss is coaxially opened up away from outer lock core cylinder one end There is inner groove, the slot bottom of inner groove offers guide groove, and guide groove includes the triggering section and changeover portion that head and the tail are connected, the triggering section The distance between outer lock core cylinder central axes, which are rotated in the clockwise direction, to be gradually reduced, which is arranged to and outer lock core cylinder The tail portion of the head of the coaxially arranged arcuate structure of body and the changeover portion and triggering section along clockwise direction is connected, and guide groove is set It sets and constitutes central symmetry there are two and along the central axes of outer lock core cylinder.

Further optimize or improve as this programme.

The first internal cylinder cylinder offers the cunning radially arranged away from second internal cylinder cylinder one end Slot, there are two sliding slot settings and is provided with sliding block and the two along the axially symmetric disposition of the first internal cylinder cylinder, sliding slot Radial along outer lock core cylinder constitutes slide-and-guide cooperation, guide protrusions is fixedly installed on the sliding block, guide protrusions extend It in guide groove and constitutes slide-and-guide along guide groove channeling direction to cooperate, under original state, guide protrusions are located at guide groove The inner headed face on the head and sliding block and the first internal cylinder cylinder of triggering section is flush, and mother key is in conjunction with the first internal cylinder cylinder When, sliding block aligns with constrained port and for pushing to constraint block, be set at the notch of the inner groove for pair Its annular end cap sealed.

Further optimize or improve as this programme.

Setting is parallel to its axial guidance raised line on the inner headed face of the second internal cylinder cylinder, the sub- key column It is opened up on periphery and is parallel to its axial raised line slot, guidance raised line and raised line slot match and for guiding magnet One, magnet three relatively just, magnet two and magnet four relatively just.

The beneficial effect of the present invention compared with prior art is that clever structure, principle are simple, coding diversification, are produced into This is cheap, is convenient for popularization and application, and by son lock and female locking phase matching coding, mother key and female lock take the lead in match cooperation rotating and touch With sending out key and popping up in mother key and match with sub- locking phase, sub- lock pin drives plectrum rotation that lock tongue is made to bounce back and door Frame is detached from, and sub- lock pin controls the flexible of different length limited post by magnetic force, and coding mode is novel, diversified, is improved Its anti-theft performance.

Detailed description of the invention

Fig. 1 is the cooperation figure of plug body and key body.

Fig. 2 is the cooperation figure of plug body and key body.

Fig. 3 is the cooperation figure of plug body and key body.

Fig. 4 is the structural schematic diagram of plug body.

Fig. 5 is the structural schematic diagram of key body retracted mode.

Fig. 6 is the structural schematic diagram that key body stretches out state.

Fig. 7 is the explosive view of plug body.

Fig. 8 is the schematic diagram of internal structure of plug body.

Fig. 9 is the structural schematic diagram of the first internal cylinder cylinder.

Figure 10 is the structural schematic diagram of triggering component.

Figure 11 is the cooperation figure of triggering component and outer lock core cylinder.

Figure 12 is the cooperation figure of triggering component and outer lock core cylinder.

Figure 13 is the cooperation figure of the second internal cylinder cylinder and outer lock core cylinder.

Figure 14 is the connection figure of the second internal cylinder cylinder and plectrum.

Figure 15 is the cross-sectional view of the second internal cylinder cylinder and outer lock core cylinder.

Figure 16 is the structural schematic diagram of outer lock core cylinder.

Figure 17 is the structural schematic diagram of the second internal cylinder cylinder.

Figure 18 is the cross-sectional view of the second internal cylinder cylinder.

Figure 19 is the cooperation figure of mother key and sub- key.

Figure 20 is the cross-sectional view of sub- key.

Figure 21 is sub- Key structure schematic diagram.

Figure 22 is the cross-sectional view of mother key.

Specific embodiment

(1) female lock unlocking phases；

S1: mother key 220 is inserted into the first internal cylinder cylinder 130 by user first, and zigzag protrusion will be protruded on female key cylinder Pellet push back and be completely disposed in 130/ outer lock core cylinder 120 of the first internal cylinder cylinder, at this point, pellet is released in first Rotational restraint between lock core cylinder 130 and outer lock core cylinder 120；

Plug body 100 includes being in the form of a column both ends open and fixed and arranged outer lock core cylinder 120, coaxial arrangement in outer lock core cylinder The first internal cylinder cylinder 130 and the second internal cylinder cylinder 140 in 120, the first internal cylinder cylinder 130 and the second internal cylinder cylinder Body 140 is the ring body structurc of both ends open, and wherein one end is outer end to outer lock core cylinder 120, the other end is inner end, the first internal lock Core cylinder 130 is arranged close to its outer end, the second internal cylinder cylinder 140 is arranged close to its inner end, the first internal cylinder cylinder 130 with it is outer The pellet for constraining rotation is provided between lock core cylinder 120 and collectively constitute female lock, the second internal cylinder cylinder 140 with it is outer It is provided with the position-limit mechanism for constraining rotation between lock core cylinder 120 and collectively constitutes sub- lock, the key body 200 Including handle 210 and the matched mother key 220 of female locking phase and the matched sub- key 230 of sub- locking phase and it is set to mother key Confining part 240 between 220 and sub- key 230,220 coaxial sleeve of mother key are set to the outside of sub- key 230, sub- key 230 It is arranged to the retracted mode that can mutually switch and stretching state and original state confining part 240 is constrained to retraction shape State；

Pellet between mother key 220 and female lock is protruding in the first internal cylinder cylinder 130 and the length of homology functor protrusion is not One, mother key 220 includes female key cylinder that sun handle 210 is fixedly connected, and is offered and pellet phase on the periphery of female key cylinder The zigzag protrusion matched, cooperation unlock is same as the prior art between mother key 220 and female lock；

(2) sub- key stretches out the stage；

S2: user's rotational handle 210, the first internal cylinder cylinder 130 rotate synchronously and release confining part 240 to sub- key 230 constraint, sub- key 230 are switched to stretching state by retracted mode and are inserted into the second internal cylinder cylinder 140；

The sub- key 230 includes the sub- key column for axially constituting slide-and-guide cooperation along it with female key cylinder, and sub- key column stretches out female The diameter of the length of key cylinder and sub- key column matches with the second internal cylinder cylinder 140, and sub- key column is coaxial close to 210 one end of handle Set access slot 231 is offered, medium position of the access slot 231 along its groove depth direction is covered and coaxially offers built-in step 2 232, built-in platform Rank 2 232 extends through to handle 210, and the diameter of built-in step 2 232 is greater than the diameter of set access slot 231, covers and sets in access slot 231 It is equipped with the guide rod 211 being fixedly connected with handle 210, sub- key column and guide rod 211 and axially constitutes slide-and-guide cooperation along it, it is described to lead The external activity of bar 211 be arranged with percussion spring 233, percussion 233 one end of spring and built-in step 2 232 contradict, the other end with Handle 210, which contradicts and fires the elastic force of spring 233, is directed toward built-in step 2 232 by handle 210 always；

The sub- key column close to 210 one end of handle be provided with external step 234a, female key cylinder away from 210 one end of handle be provided with Built-in step three 234b, external step 234a and built-in three 234b of step that external step 234a matches cooperate for about Stroke of the beam key along female key cylinder sliding；

The confining part 240 is set between sub- key column and female key cylinder and arranges close to handle 210, confining part 240 Including the mounting groove 241 being opened on sub- key column periphery, mounting groove 241 setting there are two and along the axially symmetric of sub- key column It arranges, is provided with and can be provided with about in the constraint block 242 of sub- key column radial floating, mounting groove 241 at the notch of mounting groove 241 Beam spring, restricted spring one end is fixedly connected with the slot bottom of mounting groove 241, the other end is fixedly connected with constraint block 242, female key cylinder Periphery on offer the constrained port 243 to match with constraint block 242, under original state, constraint block 242 is inserted into constrained port In 243；

The outer end of the outer lock core cylinder 120 is coaxially arranged with annular convex platform 121, and boss 121 deviates from 120 one end of outer lock core cylinder Inner groove 122 is coaxially offered, the slot bottom of inner groove 122 offers guide groove 123, and guide groove 123 includes the touching that head and the tail are connected Section and changeover portion are sent out, the distance between the triggering section and 120 central axes of outer lock core cylinder, which are rotated in the clockwise direction, to be gradually reduced, The changeover portion is arranged to the head of the arcuate structure coaxially arranged with outer lock core cylinder 120 and the changeover portion with triggering section along suitable Conterclockwise tail portion is connected, the setting of guide groove 123 there are two and along the central axes composition center pair of outer lock core cylinder 120 Claim；

The first internal cylinder cylinder 130 is offered away from 140 one end of the second internal cylinder cylinder and is radially arranged Sliding slot 131, there are two and along the axially symmetric dispositions of the first internal cylinder cylinder 310 for the setting of sliding slot 131, and sliding slot 131 is interior to be arranged There is sliding block 132 and the two cooperates along the radial slide-and-guide that constitutes of outer lock core cylinder 120, is fixedly installed on the sliding block 132 There are guide protrusions 133, guide protrusions 133 extend in guide groove 123 and constitute slide-and-guide along 123 channeling direction of guide groove Cooperation, under original state, guide protrusions 133 are located at the head of the triggering section of guide groove 123 and sliding block 132 and the first internal cylinder cylinder The inner headed face of body 130 is flush, and when mother key 220 is combined with the first internal cylinder cylinder 130, sliding block 132 and constrained port 243 are opposite Together and for pushing to constraint block 242, the annular end for sealing to it is set at the notch of the inner groove 122 Lid 124；

Mother key 220 matches cooperation with mother's lock and rotates and sub- key 230 is made to switch to stretching state, and process is mother key 220 Be inserted into the first internal cylinder cylinder 130, female key cylinder release the external lock core cylinder 120 of pellet and the first internal cylinder cylinder 130 it Between rotational restraint, rotate clockwise at this time handle 210 drive the first internal cylinder cylinder 130 rotate synchronously, the first internal cylinder cylinder Body 130 will be rotated synchronously with movable slider 132, sliding block 132 will drive guide protrusions 133 rotate synchronously, and guide protrusions 133 are along leading It is slided to the triggering section of slot 123, guide groove 123 is matched with guide protrusions 133 will make two sliding blocks 132 along the first internal lock The sliding close to each other of the radial direction of core cylinder 130, sliding block 132 will be inserted into constrained port 243 and support to constraint block 242 It pushes away, constraint block 242 overcomes the elastic force effect of restricted spring to bounce back in mounting groove 241, and confining part 240 is released to sub- key column Constraint, at this point, percussion spring 233, by the slide outside of the female key cylinder of promotor site key column direction, sub- key 230 switches to stretching state And it is inserted into the second internal cylinder cylinder 140；

(3) sub- lock unlocking phases；

S3: sub- key 230 by magnetic force it is attracting/repelling each other makes position-limit mechanism release external lock core cylinder 120 and the second internal cylinder cylinder Constraint between body 140, further rotational handle 210, the second internal cylinder cylinder 140 rotate and drive plectrum 150 is synchronous to turn Dynamic, plectrum 150 makes lock tongue bounce back and be detached from doorframe by moving part；

The position-limit mechanism includes being opened in 120 outside of outer lock core cylinder and being through to its internal limit hole 1 With limit hole 2 126, the axial direction of limit hole 1 and limit hole 2 126 is parallel to each other to and each parallel to outer lock core cylinder 120 radial direction, position-limit mechanism further include being opened in 140 outside of the second internal cylinder cylinder and being through to its internal limit hole three 141 are parallel to each other and with limit hole 4 142, limit hole 3 141 and the axial direction of limit hole 4 142 each parallel to the second internal cylinder In the radial direction of cylinder 140, limit hole 3 141 and the one end of limit hole 4 142 inside the second internal cylinder cylinder 140 are provided with Set step 1, under original state, limit hole 1 is coaxial corresponding with limit hole 3 141, limit hole 2 126 and limit hole four 142 is coaxial corresponding；

It is provided in the limit hole 1 under its axially slidable limited post 1, original state, limited post 1 The length extended in limit hole 3 141 is X, is provided in limit hole 3 141 along its axially slidable limited post 3 144, Limited post 1 and limited post 3 144 is inconsistent and an end face close to each other is arranged to and 140 periphery of the second internal cylinder cylinder The arcwall face to match, limit hole 1 are provided with limit hole 2 126 away from the place open at one end of the second internal cylinder cylinder 140 The sealing plug 128 for being threadedly coupled cooperation is constituted with it, is provided with limit spring 1, limit spring one in limit hole 1 129 one end and sealing plug 128 contradict, the other end and limited post 1 contradict and the elastic force of limit spring 1 always by Sealing plug 128 is directed toward limited post 1, and close to 140 inside one end of the second internal cylinder cylinder, coaxially fixation is set limited post 3 144 It is equipped with cylindrical magnetic iron 1, magnet 3 237 is embedded on the periphery of the sub- key column, sub- key column is inserted into the second internal cylinder cylinder In body 140, the magnet 1 and end face close to each other of magnet 3 237 is mutually exclusive and the size of repulsive force drives limited post One 127 are equal to X towards the displacement that limit hole 1 moves；

Being provided in the limit hole 4 142 can be along the limited post 4 147 that its axial direction is slided, original state lower limit column four 147 to extend to length in limit hole 2 126 be Y, be provided in limit hole 2 126 can along its limited post two in axial sliding, Limited post two is inconsistent with limited post 4 147 and one section close to each other is completely arranged to and 140 periphery phase of the second internal cylinder cylinder Matched arcwall face, an end face of the limited post 4 147 inside the second lock core cylinder 140 are coaxially fixedly installed cylindrical magnetic iron 2 146, the outer cover of magnet 2 146 is equipped with limit spring 2 148,2 148 one end of limit spring and the fixed company of limited post 4 147 It connects, the other end is fixedly connected with built-in step 1 and the elastic force of limit spring 2 148 is used to maintain limited post 4 147 In being embedded with magnet 4 238 in original state, the periphery of the sub- key column, sub- key column is inserted into the second internal cylinder cylinder 140, Magnet 2 146 and the end face close to each other of magnet 4 238 attract each other and the size of attraction driving 4 147 direction of limited post The displacement moved in limit hole 4 142 is equal to Y；

Limit hole 1, limit hole 3 141 and its internal structure together constitute limit component one, limit hole 2 126 with Limit hole 4 142 and its internal structure together constitute limit component two, limit component one be arbitrarily provided with it is multiple and Each parallel to the radial direction arrangement of outer lock core cylinder 120, limit component two is arbitrarily provided with multiple and each parallel to outer lock core cylinder The radial arrangement of body 120, the outside of sub- key column are provided with corresponding matched magnet 3 237 and magnet 4 238, pass through limit Component one is combined with the arbitrary arrangement of limit component two, forms the anti-theft cipher of son lock；

In second internal cylinder cylinder of the sub- insertion of key 230 140 and position-limit mechanism is made to release turn to the second internal cylinder cylinder 140 Moving constraint, process are that after confining part 240 releases the constraint limit to sub- key 230, sub- key 230 can not be switched to rapidly Stretching state, user rotate clockwise handle 210, and handle 210 is rotated synchronously with mover key column, when guidance raised line 149 and raised line When slot 236 aligns, sub- key column is stretched out from inside to outside by female key cylinder, and sub- key column is inserted into the second internal cylinder cylinder 140, at this point, Several magnet 3 237 are with several magnet 1 relatively just and in the one 127 direction limit of the two repulsive force effect driving limited post The displacement that hole 1 moves is equal to X, and several magnet 4 238 are with several magnet 2 146 relatively just and in the effect of the two attraction Lower driving limited post 4 147 is equal to Y towards the displacement moved in limit hole 4 142, at this point, limited post 1 is completely disposed at limit In the hole 1 of position, limited post two is completely disposed in limit hole 2 126, and limited post 3 144 is completely disposed in limit hole 3 141, limit Position column 4 147 is completely disposed in limit hole 4 142, and position-limit mechanism releases the rotational restraint to the second internal cylinder cylinder 140, user Further rotational handle, the second internal cylinder cylinder 140 drive plectrum 150 to rotate, and plectrum 150 makes lock tongue bounce back and divide with doorframe From security door is opened；

S4: during extracting key body 200, rotating backward handle 210 and extract, in the process, limit spring one 129 driving limit components one reset, and limit spring 2 148 drives limit component two to reset, and position-limit mechanism restores to the second internal lock The rotational restraint of core cylinder 140, pellet restore the rotational restraint to the first internal cylinder cylinder 130, and then, user is manually by sub- key Column pressing is retracted in female key cylinder, and sub- key 230 is constrained in retracted mode by confining part 240.

The primary and secondary theftproof lock of a kind of flux density code unlock comprising plug body 100 and match with plug body 100 Key body 200, plug body 100 include being in the form of a column both ends open and fixed and arranged outer lock core cylinder 120, coaxial arrangement in outer The first internal cylinder cylinder 130 and the second internal cylinder cylinder 140 in lock core cylinder 120, the first internal cylinder cylinder 130 and second Internal cylinder cylinder 140 is the ring body structurc of both ends open, and wherein one end is outer end to outer lock core cylinder 120, the other end is inner end, First internal cylinder cylinder 130 is arranged close to its outer end, the second internal cylinder cylinder 140 is arranged close to its inner end, the first internal cylinder cylinder It is provided with the pellet for constraining rotation between body 130 and outer lock core cylinder 120 and collectively constitutes female lock, the second internal cylinder cylinder It is provided with the position-limit mechanism for constraining rotation between body 140 and outer lock core cylinder 120 and collectively constitutes sub- lock, the key Spoon ontology 200 includes handle 210 and the matched mother key 220 of female locking phase and the matched sub- key 230 of sub- locking phase and setting Confining part 240 between mother key 220 and sub- key 230,220 coaxial sleeve of mother key are set to the outside of sub- key 230, son Key 230 is arranged to the retracted mode that can mutually switch with stretching state and original state confining part 240 is constrained to Retracted mode.

Pellet between mother key 220 and female lock is protruding to the length that in the first internal cylinder cylinder 130 and homology functor does not protrude Spend different, mother key 220 includes the female key cylinder that is fixedly connected of sun handle 210, is offered on the periphery of female key cylinder and pellet The zigzag protrusion to match, cooperation unlock is same as the prior art between mother key 220 and female lock, repeats no more.

Second internal cylinder cylinder 140 is connected with the plectrum 150 for driving lock tongue, and mother key 220 and female locking phase are mutual Cooperation rotation makes sub- key 230 switch to stretching state for triggering, and stretches out the sub- key 230 of state for releasing the second internal lock The rotational restraint of position-limit mechanism between core cylinder 140 and outer lock core cylinder 120.

In use process, mother key 220 is inserted into the first internal cylinder cylinder 130 by user first, sawtooth on female key cylinder The pellet of protrusion is pushed back and is completely disposed in 130/ outer lock core cylinder 120 of the first internal cylinder cylinder by shape protrusion, at this point, pellet It releases to the rotational restraint between the first internal cylinder cylinder 130 and outer lock core cylinder 120, user's rotational handle 210, the first internal lock Core cylinder 130 rotates synchronously and confining part 240 is made to release the constraint to sub- key 230, and sub- key 230 is cut by retracted mode Shift to stretching state and be inserted into the second internal cylinder cylinder 140, sub- key 230 by magnetic force it is attracting/repelling each other makes position restrainer Structure releases the constraint between external lock core cylinder 120 and the second internal cylinder cylinder 140, further rotational handle 210, the second internal lock Core cylinder 140 rotates and plectrum 150 is driven to rotate synchronously, and plectrum 150 makes lock tongue bounce back and take off with doorframe by moving part From.

Specifically, for the ease of mother's lock and son lock are protected and installed, the outer cover of the outer lock core cylinder 120 Equipped with shell 110, shell 110 and door-plate are detachably connected cooperation.

When mother key 220 is inserted into rotation in female lock, need that confining part 240 is made to release 220 pairs of sub- keys of mother key 230 constraint, sub- key 230 switch to stretching state by retracted mode automatically, for this purpose, the sub- key 230 includes and mother Key cylinder axially constitutes the sub- key column of slide-and-guide cooperation along it, sub- key column stretch out female key cylinder length and sub- key column diameter with Second internal cylinder cylinder 140 matches, and sub- key column coaxially offers set access slot 231 close to 210 one end of handle, covers 231 edge of access slot The medium position in its groove depth direction coaxially offers built-in step 2 232, and built-in step 2 232 is extended through to handle 210, interior The diameter for setting step 2 232 is greater than the diameter of set access slot 231, covers in access slot 231 and is provided with the guide rod being fixedly connected with handle 210 211, sub- key column and guide rod 211 axially constitute slide-and-guide cooperation along it, in order to enable sub- key column auto-extending mother's key cylinder Outside, the external activity of the guide rod 211 are arranged with percussion spring 233, and percussion 233 one end of spring is supported with built-in step 2 232 Touching, the other end and handle 210, which contradict and fire the elastic force of spring 233, is directed toward built-in step 2 232 by handle 210 always, leads to The elastic force effect for crossing percussion spring 233 makes sub- key column so that sub- key 230 is switched to stretching shape towards the slide outside of female key cylinder State.

Specifically, the sub- key column is arranged close to 210 one end of handle in order to avoid falling off between sub- key column and female key cylinder There are external step 234a, female key cylinder that 210 one end of handle is provided with the built-in step three to match with external step 234a The stroke that 234b, external step 234a and built-in three 234b of step cooperate for constraining the female key cylinder sliding in sub- key edge, Meaning is, avoids falling off between sub- key column and female key cylinder.

Under original state, need to guarantee that sub- key 230 is in retracted mode, in order to overcome the elastic force of percussion spring 233 to make With sub- key column is located inside female key cylinder, the confining part 240 is set between sub- key column and female key cylinder and close to hand Handle 210 arranges that confining part 240 includes the mounting groove 241 being opened on sub- key column periphery, and there are two the settings of mounting groove 241 And along the axially symmetric disposition of sub- key column, being provided at the notch of mounting groove 241 can be along the constraint block of sub- key column radial floating 242, be provided with restricted spring in mounting groove 241, restricted spring one end is fixedly connected with the slot bottom of mounting groove 241, the other end with Constraint block 242 is fixedly connected, and the constrained port 243 to match with constraint block 242, original state are offered on the periphery of female key cylinder Under, constraint block 242 is inserted into constrained port 243.

When mother key 220, which is inserted into, to be rotated in the first internal cylinder cylinder 130, need that constraint block 242 is made to overcome constraint bullet It moves under the elastic force effect of spring towards the slot bottom of mounting groove 241 and is separated with constrained port 243, for this purpose, the outer lock core cylinder The outer end of body 120 is coaxially arranged with annular convex platform 121, and boss 121 coaxially offers inner groove away from 120 one end of outer lock core cylinder 122, the slot bottom of inner groove 122 offers guide groove 123, and guide groove 123 includes the triggering section and changeover portion that head and the tail are connected, the touching Hair the distance between section and 120 central axes of outer lock core cylinder are rotated in the clockwise direction and are gradually reduced, the changeover portion be arranged to and The head of the coaxially arranged arcuate structure of outer lock core cylinder 120 and the changeover portion connects with the tail portion of triggering section along clockwise direction Logical, the setting of guide groove 123 constitutes central symmetry there are two and along the central axes of outer lock core cylinder 120.

The first internal cylinder cylinder 130 offers radially cloth away from 140 one end of the second internal cylinder cylinder The sliding slot 131 set, sliding slot 131 setting there are two and along the axially symmetric disposition of the first internal cylinder cylinder 310, sliding slot 131 It is provided with sliding block 132 and the two cooperates along the radial slide-and-guide that constitutes of outer lock core cylinder 120, it is fixed on the sliding block 132 Guide protrusions 133 are provided with, guide protrusions 133 are extended in guide groove 123 and constituted along 123 channeling direction of guide groove and slide Guiding cooperation, under original state, guide protrusions 133 are located at the head of the triggering section of guide groove 123 and sliding block 132 and the first internal lock The inner headed face of core cylinder 130 is flush, when mother key 220 is combined with the first internal cylinder cylinder 130, sliding block 132 and constrained port 243 It aligns and is used to push constraint block 242, it is described interior heavy in order to avoid the disengaging between sliding block 132 and sliding slot 131 The annular end cap 124 for sealing to it is set at the notch of slot 122.

Mother key 220 matches cooperation with mother's lock and rotates and sub- key 230 is made to switch to stretching state, is embodied in, Mother key 220 is inserted into the first internal cylinder cylinder 130, and female key cylinder releases the external lock core cylinder 120 of pellet and the first internal cylinder Rotational restraint between cylinder 130 rotates clockwise handle 210 at this time and the first internal cylinder cylinder 130 is driven to rotate synchronously, and first Internal cylinder cylinder 130 will be rotated synchronously with movable slider 132, sliding block 132 will drive guide protrusions 133 to rotate synchronously, guide protrusions 133 are slided along the triggering section of guide groove 123, and guide groove 123 is matched with guide protrusions 133 will make two sliding blocks, 132 edge The radial direction sliding close to each other of the first internal cylinder cylinder 130, sliding block 132 will be inserted into constrained port 243 and to constraint block 242 are pushed, and constraint block 242 overcomes the elastic force effect of restricted spring to bounce back in mounting groove 241, and confining part 240 releases Constraint to sub- key column, at this point, percussion spring 233, by the slide outside of the female key cylinder of promotor site key column direction, sub- key 230 switches To stretching state and it is inserted into the second internal cylinder cylinder 140.

In order to constrain position-limit mechanism to the rotation of the second internal cylinder cylinder 140, and work as matched sub- key When spoon 230 is inserted into the second internal cylinder cylinder 140, position-limit mechanism is set to release the rotational restraint to the second lock core cylinder 140, outside The periphery of lock core cylinder 120 is arranged to polygonized structure, and position-limit mechanism includes being opened in 120 outside of outer lock core cylinder and passing through It wears to its internal limit hole 1 and limit hole 2 126, limit hole 1 and the axial direction of limit hole 2 126 are parallel to each other In and each parallel to outer lock core cylinder 120 radial direction, position-limit mechanism further includes being opened in the outside of the second internal cylinder cylinder 140 simultaneously And it is through to its internal limit hole 3 141 and limit hole 4 142, limit hole 3 141 is axial mutually flat with limit hole 4 142 Row and each parallel to the radial direction of the second internal cylinder cylinder 140, limit hole 3 141 and limit hole 4 142 are close to the second internal cylinder One end inside cylinder 140 is provided with built-in step 1, and under original state, limit hole 1 and limit hole 3 141 are coaxial Corresponding, limit hole 2 126 is coaxial corresponding with limit hole 4 142.

Specifically, in order to which external lock core cylinder 120 and the second internal cylinder cylinder 140 carry out rotational restraint, the limit hole It is provided in one 125 under its axially slidable limited post 1, original state, limited post 1 extends to limit hole three Length in 141 is X, is provided in limit hole 3 141 along its axially slidable limited post 3 144, limited post 1 and limit Position column 3 144 is inconsistent and an end face close to each other is arranged to the arcwall face to match with 140 periphery of the second internal cylinder cylinder, Limit hole 1 is provided with to constitute with it and be threadedly coupled with limit hole 2 126 away from the place open at one end of the second internal cylinder cylinder 140 The sealing plug 128 of cooperation is provided with limit spring 1, one 129 one end of limit spring and sealing spiral shell in limit hole 1 128 conflict of plug, the other end and limited post 1 contradict and the elastic force of limit spring 1 is directed toward by sealing plug 128 always Limited post 1, limited post 3 144 are coaxially fixedly installed cylindrical magnetic iron one close to 140 inside one end of the second internal cylinder cylinder 145, in order to enable the second internal cylinder cylinder 140 to rotate, need to be completely disposed at limited post 1 in limit hole 1 simultaneously And limited post 3 144 is completely disposed in limit hole 3 141, for this purpose, it is embedded with magnet 3 237 on the periphery of the sub- key column, Sub- key column is inserted into the second internal cylinder cylinder 140, magnet 1 and the end face close to each other of magnet 3 237 it is mutually exclusive and The size of repulsive force drives limited post 1 to be equal to X towards the displacement that limit hole 1 moves.

Specifically, in order to which further externally lock core cylinder 120 and the second internal cylinder cylinder 140 carry out rotational restraint, it is described Being provided in limit hole 4 142 can extend along the limited post 4 147 that its axial direction is slided, original state lower limit column 4 147 Length in limit hole 2 126 is Y, and being provided in limit hole 2 126 can be along its limited post two in axial sliding, limited post two It is inconsistent with limited post 4 147 and one section close to each other is completely arranged to the arc to match with 140 periphery of the second internal cylinder cylinder Shape face, an end face of the limited post 4 147 inside the second lock core cylinder 140 are coaxially fixedly installed cylindrical magnetic iron 2 146, magnetic The outer cover of iron 2 146 is equipped with limit spring 2 148, and 2 148 one end of limit spring is fixedly connected with limited post 4 147, is another End is fixedly connected with built-in step 1 and the elastic force of limit spring 2 148 is used to limited post 4 147 being maintained at initial shape State is needed to be completely disposed at limited post 4 147 in limit hole 4 142 and be limited to enable the second internal cylinder 140 to rotate Column two is completely disposed in limit hole 2 126, for this purpose, magnet 4 238 is embedded on the periphery of the sub- key column, sub- key column insertion In second internal cylinder cylinder 140, magnet 2 146 attract each other with the end face close to each other of magnet 4 238 and attraction it is big Small driving limited post 4 147 is equal to Y towards the displacement moved in limit hole 4 142.

In order to increase the anti-theft of sub- lock and the diversity of coding, limit hole 1, limit hole 3 141 and its in The structure in portion together constitutes limit component one, and limit hole 2 126 is collectively formed with limit hole 4 142 and its internal structure Limit component two, limit component one are arbitrarily provided with multiple and each parallel to outer lock core cylinder 120 radial direction and arrange, limit Component two be arbitrarily provided with it is multiple and each parallel to outer lock core cylinder 120 radial direction arrange, the outside of sub- key column be provided with The magnet 3 237 and magnet 4 238 of its Corresponding matching, are combined by limit component one with the arbitrary arrangement of limit component two, shape The anti-theft cipher of Cheng Zisuo.

It is opposite for the ease of magnet 1, magnet 3 237 when group key column is inserted into the second internal cylinder cylinder 140, Magnet 2 146 and magnet 4 238 are opposite, and setting is parallel to its axial direction on the inner headed face of the second internal cylinder cylinder 140 Guide raised line 149, open up on the periphery of the sub- key column and be parallel to its axial raised line slot 236, guidance raised line 149 with Raised line slot 236 matches and for guiding opposite magnet 1, magnet 3 237, magnet 2 146 and magnet 4 238 opposite.

In second internal cylinder cylinder of the sub- insertion of key 230 140 and release position-limit mechanism to the second internal cylinder cylinder 140 Rotational restraint, be embodied in, confining part 240 is released to after the constraint of sub- key 230 limit, and sub- key 230 can not be fast Speed switches to stretching state, and user rotates clockwise handle 210, and handle 210 is rotated synchronously with mover key column, when guidance raised line 149 with raised line slot 236 align when, sub- key column is stretched out from inside to outside by female key cylinder, and sub- key column is inserted into the second internal cylinder cylinder 140 It is interior, at this point, several magnet 3 237 and several magnet 1 just and in the two repulsive force are acting on driving limited post 1 relatively The displacement moved towards limit hole 1 is equal to X, and several magnet 4 238 are with several magnet 2 146 relatively just and in the two suction Limited post 4 147 is driven to be equal to Y towards the displacement moved in limit hole 4 142 under graviational interaction, at this point, limited post 1 is complete It is placed in limit hole 1 entirely, limited post two is completely disposed in limit hole 2 126, and limited post 3 144 is completely disposed at limit hole three In 141, limited post 4 147 is completely disposed in limit hole 4 142, and position-limit mechanism releases the rotation to the second internal cylinder cylinder 140 Constraint, the further rotational handle of user, the second internal cylinder cylinder 140 drive plectrum 150 to rotate, and plectrum 150 makes lock tongue retraction simultaneously And separated with doorframe, security door is opened.

During extracting key body 200, rotates backward handle 210 and extract, in the process, limit spring one 129 driving limit components one reset, and limit spring 2 148 drives limit component two to reset, and position-limit mechanism restores to the second internal lock The rotational restraint of core cylinder 140, pellet restore the rotational restraint to the first internal cylinder cylinder 130, and then, user is manually by sub- key Column pressing is retracted in female key cylinder, and sub- key 230 is constrained in retracted mode by confining part 240.

As the scheme that the present invention more optimizes, in order to further enhance the coding diversity of mother's lock, the plectrum 150 is leaned on Nearly second internal cylinder cylinder, 140 one end is provided with fixed disk 151, and fixed disk 151 and 140 one end of the second internal cylinder cylinder are coaxially solid Fixed connection, fixed disk 151 are provided with special-shaped convex block 152, the son close to the center of 140 1 end face of the second internal cylinder cylinder Key column offers the special-shaped slot 235 to match with special-shaped convex block 152, guidance raised line 149 and raised line slot away from 210 one end of handle When 236 alignment, special-shaped convex block 152 aligns with special-shaped slot 235, takes the meaning of this programme to be, only when special-shaped convex block 152 It aligns with special-shaped slot 235, sub- key column can be just fully inserted into the second internal cylinder cylinder 140, improve the anti-theft of female lock Energy.

The scheme more perfect as the present invention, in order to guarantee the first internal cylinder cylinder 130 and the second internal cylinder cylinder 140 Between concentricity, set on the first internal cylinder cylinder 130 and the periphery of the one end close to each other of the second internal cylinder cylinder 140 It is equipped with for both fixed coaxial rings 160, coaxial rings 160 are made of symmetrical hemizonid, coaxial rings 160 and the first internal cylinder Cylinder 130 is to rotate coaxially to connect cooperation with, the second internal cylinder cylinder 140, and coaxial rings 160 and outer lock core cylinder 120 Inner headed face between for rotation connection cooperation, take the meaning of this programme to be, structure is simple, guarantees the first internal cylinder cylinder 130 and the second concentricity between internal cylinder cylinder 140, the reliability of female lock with son lock is promoted, avoids sub- key that from can not being inserted into To the second internal cylinder cylinder 140.

Claims

1. a kind of unlocking method of flux density code primary and secondary lock, is in step:

(1) female lock unlocking phases；

(2) sub- key stretches out the stage；

(3) sub- lock unlocking phases；

2. a kind of unlocking method of flux density code primary and secondary lock according to claim 1, the confining part are set to sub- key Between column and female key cylinder and close to handle arrangements, confining part includes the mounting groove being opened on sub- key column periphery, installation Slot is arranged there are two and is provided with along the axially symmetric disposition of sub- key column, the notch of mounting groove can be along sub- key column radial floating Constraint block, be provided with restricted spring in mounting groove, restricted spring one end is fixedly connected with the slot bottom of mounting groove, the other end with about Beam block is fixedly connected, and the constrained port to match with constraint block is offered on the periphery of female key cylinder, and constraint block is inserted under original state Enter to constrained port.

3. a kind of unlocking method of flux density code primary and secondary lock according to claim 1, plug body includes being in the form of a column both ends to open Mouthful and fixed and arranged outer lock core cylinder, coaxial arrangement in the intracorporal first internal cylinder cylinder of outer lock core cylinder and the second internal cylinder cylinder Body, the first internal cylinder cylinder and the second internal cylinder cylinder are the ring body structurc of both ends open, and wherein one end is outer lock core cylinder Outer end, the other end are inner end, and the first internal cylinder cylinder is arranged close to its outer end, the second internal cylinder cylinder is arranged close to its inner end, It is provided with the pellet for constraining rotation between first internal cylinder cylinder and outer lock core cylinder and collectively constitutes female lock, in second It is provided with the position-limit mechanism for constraining rotation between lock core cylinder and outer lock core cylinder and collectively constitutes sub- lock, the key Spoon ontology includes handle and the matched mother key of female locking phase and the matched sub- key of sub- locking phase and is set to mother key and son Confining part between key, mother key coaxial sleeve are set to the outside of sub- key, and sub- key is arranged to the retraction that can mutually switch State is with stretching state and original state confining part is constrained to retracted mode.

4. a kind of unlocking method of flux density code primary and secondary lock according to claim 3, the pellet between mother key and female lock is convex Different to the length of in the first internal cylinder cylinder and not homology functor protrusion out, mother key includes female key that sun handle is fixedly connected Tin, the zigzag protrusion to match with pellet is offered on the periphery of female key cylinder.

5. a kind of unlocking method of flux density code primary and secondary lock according to claim 2, the outer end of the outer lock core cylinder are coaxial It is provided with annular convex platform, boss coaxially offers inner groove away from outer lock core cylinder one end, and the slot bottom of inner groove offers guiding Slot, guide groove include the triggering section and changeover portion that head and the tail are connected, the distance between the triggering section and outer lock core cylinder central axes edge It is gradually reduced rotationally clockwise, which is arranged to the arcuate structure coaxially arranged with outer lock core cylinder and the transition The head and triggering section tail portion along clockwise direction of section are connected, guide groove setting there are two and along the axis of outer lock core cylinder Line constitutes central symmetry.

6. a kind of unlocking method of flux density code primary and secondary lock according to claim 4 or 5, the first internal cylinder cylinder deviate from Second internal cylinder cylinder one end offers the sliding slot radially arranged, sliding slot setting there are two and along the first internal lock The axially symmetric disposition of core cylinder, is provided with sliding block in sliding slot and the two is matched along the radial slide-and-guide that constitutes of outer lock core cylinder It closes, guide protrusions is fixedly installed on the sliding block, guide protrusions extend in guide groove and along guide groove channeling direction structure Cooperate at slide-and-guide, under original state, guide protrusions are located at the head of guide groove triggering section and sliding block and the first internal cylinder The inner headed face of cylinder is flush, when mother key is in conjunction with the first internal cylinder cylinder, sliding block and constrained port align and for pair Constraint block is pushed, and the annular end cap for sealing to it is set at the notch of the inner groove.

7. a kind of unlocking method of flux density code primary and secondary lock according to claim 1, the inner circle of the second internal cylinder cylinder Setting is parallel to its axial guidance raised line on face, opens up on the periphery of the sub- key column and is parallel to the convex of its axial direction Bar groove, guidance raised line and raised line slot match and for guide magnet one, magnet three relatively just, magnet two and magnet four it is opposite Just.