CN207436709U - Theftproof lock and key sleeve member - Google Patents

Abstract

The utility model discloses a kind of theftproof lock and key sleeve member, theftproof lock includes lock core shell, lock core, locking plate component and hoodle component；The lock core is divided into lock core leading portion and lock core back segment, and lock core leading portion has the first cavity, and lock core back segment has the second cavity that one end closing, the other end are connected with the first cavity, wherein, the width of the second cavity is more than the width of the first cavity；One end of second cavity closing is provided with the pillar of circular ring shape；Locking plate component is located in lock core leading portion, and hoodle component is located in lock core back segment；The key body of the key includes housing, key piece and driving device；Housing exterior walls are provided with to unlock the groove body of locking plate component；Key piece includes the solution locking plate for solving lock pin, and solution locking plate is mounted on the outer wall side of housing, and solution locking plate can be unfolded to both sides under the promotion of driving device and unlock hoodle component.Since pillar can prevent unlocking tool from protruding fully into the cavity of back segment, so as to which unlocking tool is hindered to stir the hoodle component near pillar.

Description

Theftproof lock and key sleeve member

Technical field

The utility model is related to field of lockset more particularly to a kind of extremely strong theftproof locks of anti-theft performance and matched key Spoon.

Background technology

In the anti-theft door lock cylinder used on the market substantially point three-level, i.e. A grades, B grades, B grades super (also known as C grades).According to《State Family's mechanical lock standard》Anti-theft door lock cylinder has two rank of A and B, and super B grades is in addition B grades of strengthening version that enterpriser develops.

A grades of locks：A grades of key of anti-theft lock mainly have a word key and cross key on the market at present.A grades of lock core internal structures It is very simple, the variation of pellet is only limitted to, bullet groove is few and shallow.In the anti-1 minute technical unlocking time, mutual opening rate is high.Bullet Minor structure is single-row billiard or cross lock.

B grades of locks：B grades of lock keys are flat key, there is double-row marble slot, are that key face is more with the A grades of different places of lock One row having many bends or curves irregular lines.Lock core main Types are 3 kinds, the double lock core of computer, double crescent moon lock core, two-sided leaf Piece lock core.In the anti-5 minutes technical unlocking time, mutual opening rate is high.It, can be with opening lock master in 1 minute by turning round instrument by force.

Super B grades of lock (C grades)：Key shape is groove milling or outer groove milling key in single side blade, and lock core type is side column lock core； It detects 270 minutes through the Ministry of Public Security and is opened without law technology, region mutual opening rate is zero (1,600 a ten thousandth).Billiards structure is double Row's blade adds V-type side column locking；If turning round instrument opening lock master with strong, lock core internal sabotage, self-destruction is locked, leads to not out It opens.

But no matter A grades of locks, B grades of locks or highest C grades of anti-theft are locked, since unlocking tool is likely to protrude fully into In the key slot of lock core, therefore all there is a possibility that be opened by technology, simply the problem of time length.

Utility model content

The purpose of the utility model is to overcome above-mentioned deficiency, the high theftproof lock of a kind of anti-theft performance and therewith is provided Mating key.

The purpose of this utility model is achieved through the following technical solutions：Theftproof lock and key sleeve member,

The theftproof lock includes：Lock core shell, in lock core shell and can compared with lock core shell rotate lock core, at least two Group locking plate component and at least two groups of hoodle components；

The locking plate component and hoodle component have lock-out state and released state, wherein, lock-out state is used to limit Lock core compared with lock core shell rotation；

The lock core is divided into lock core leading portion and lock core back segment, and the inside of lock core leading portion has the first chamber that section is square Body, the inside of lock core back segment have the second chamber that one end closing, the other end are also square with the section that first cavity connects Body, wherein, the width of the second cavity is 1.2-1.8 times of the first housing width；One end of the second cavity closing is provided with It is in the pillar of circular ring shape towards the section of the first cavity protrusion, the height of the pillar is the 1/3-2/3 of the second cavity depth；

The locking plate component includes locking plate and locking plate spring；The middle part of the locking plate has the key for being inserted into key Slot, the one pair of which side of key slot are each provided with a protrusion, and the locking plate is moveably mounted to lock by locking plate spring In the locking plate slot of core leading portion, the direction of the locking plate slot and the axis perpendicular of first cavity；One end of the locking plate spring It is fixed on the locking plate, the other end is fixed near the locking plate slot；The locking plate in lock-out state, locking plate At least a portion goes out compared with the locking plate geosynclinal convex and enters in the locking plate limiting slot on lock core shell, the locking plate /V The locking plate that the structure of slot can limit entrance prevents it compared with lock core shell from rotating；The locking plate is in released state, all Locking plate is respectively positioned in the locking plate slot and both sides are compared with locking plate slot not evagination；

The hoodle component is arranged on the both sides of second cavity, hoodle component include the upper hoodle set gradually, Lower pellet and hoodle spring coordinate the hoodle component to be provided with to accommodate hoodle component on the lock core shell and lock core Ball race；The hoodle component is in lock-out state, by lower pellet limitation lock core compared with the rotation of lock core shell；The bullet In released state, the contact surface of the contact surface of upper hoodle and lower pellet just with lock core and lock core shell coincides pearl component；

The key includes：It the shank of the key and is fixed with the shank of the key and is used to unlock the key body of the lock core；

The key body includes housing, key piece and driving device；

The housing is the hollow cylinder that cross section is square, the size of housing and the size phase of first cavity Match somebody with somebody, first cavity can be inserted into, the length of housing adds the depth of the second cavity not less than the first cavity, and housing is compared with key One end of handle is provided with a sealing plate, and an annular through groove is provided in the middle part of the sealing plate, the annular through groove and the pillar phase Match somebody with somebody, pillar may pass through the annular through groove, and housing exterior walls are provided with to unlock the groove body of the locking plate component；

The key piece includes two and is connected to two solution locking plates for unlocking the solution locking plate of the hoodle component and one Between connecting portion；

The solution locking plate is mounted on the outer wall side of the housing, and the outer wall for solving locking plate corresponds to the arrangement of the hoodle component Mode is provided with to unlock the eyelet of the hoodle component；The corresponding unlock piece, is provided with to receive in the outer wall of the housing Receive the groove of solution locking plate, the depth of the groove is not less than the thickness of solution locking plate；

The connecting portion is U-shaped structure, and the open end of U-shaped structure is fixedly connected respectively with two solution locking plates, blind end Then in the inner cavity of the housing；Connecting portion in inner cavity is provided with inclined-plane A, and inner cavity in the one side towards the sealing plate In connecting portion key flat spring is provided between the inner wall of the place of being folded to of U-shaped structure and the housing, the key flat spring The inner wall that connecting portion is folded to place is held out against in compressive state one end, the other end holds out against the inner wall of housing；

The driving device is arranged in the inner cavity of the housing, which includes driving end, connecting rod, pressure Plate and main spring；

The driving end is between the sealing plate and the connecting portion, and driving end is close to the one of connecting portion Side is provided with the inclined-plane B to match with the inclined-plane A；When end is driven to push connecting portion, inclined-plane B can promote inclined-plane A outside Side is mobile and compresses the key flat spring, and then the solution locking plate is driven to be moved to the outside of the housing, last solution The lock hoodle component；

Described connecting rod one end is fixedly connected with the driving end, and the other end is fixedly connected with the pressing plate；

The pressing plate and the fixed one side of connecting rod pass through the baffle limiting that is arranged in the housing cavity；

The main spring holds out against the one side for deviating from connecting rod in the pressing plate in compressive state one end, and the other end is held out against In the supporting block of the shell end.

Further, the hoodle component acts on the protrusion of face on the key and the locking plate and acts on face on the key It is mutually perpendicular to.

Further, the groove body includes interconnected straight trough and crank slot, wherein, crank slot, which is located on the housing, to be leaned on The one side of nearly the shank of the key, straight trough is located at the one side away from the shank of the key on housing, and the end set of straight trough has targeting port, wherein, Crank slot can drive all locking plate components to be in released state after key is fully inserted by the protrusion.

Further, the key piece is two, is separately positioned on housing and is different from setting on an opposite of groove body.

Further, positioned at the both ends of the key flat spring, place and institute are folded in the connecting portion U-shaped structure respectively The inner wall for stating housing is each provided with a boss A, and boss A is for the fixed key flat spring and to the key piece Mobile /V.

Further, positioned at the both ends of the main spring, one is each provided on the pressing plate and the supporting block respectively The mobile /V of boss B, boss B for the fixed main spring and to the pressing plate.

The beneficial effects of the utility model are：The theftproof lock of the utility model, the leading portion of lock core are provided with locking plate component, lock The back segment of core is provided with hoodle component, and pillar is also devised in the cavity of posterior segment, which can stop that unlocking tool is complete It extend into the cavity of back segment, once unlocking tool can not be fully inserted into, naturally also can not just stir hoodle all in back segment Component, so can not technology unlocking, therefore the theftproof lock of the utility model have high anti-theft performance；And the utility model Key, when being inserted into the lock core of the theftproof lock, on the one hand, the crank slot of housing exterior walls can solve the locking plate component of lock pin leading portion, On the other hand, the driving end of driving device under the action of pillar, can be moved at the connecting portion of key piece in theftproof lock, and By inclined-plane B key piece is promoted to be displaced outwardly, and then hoodle group all in the eyelet solution lock pin back segment by unlocking on piece Part is finally completed the unlock of theftproof lock.

Description of the drawings

Fig. 1 is the theftproof lock of the utility model and the structure diagram of key sleeve member；

Fig. 2 is the structure diagram of theftproof lock in the utility model, wherein, locking plate component and hoodle component are in locking State；

Fig. 3 is the sectional view of A-A in Fig. 2, wherein, locking plate is in the unlocked state；

Fig. 4 is schematic diagram when locking plate is in the lock state in Fig. 3；

Fig. 5 is schematic diagram when locking plate component and hoodle component are in released state in Fig. 2；

Fig. 6 is the schematic diagram of locking plate and locking plate spring；

Fig. 7 is the structure diagram of key in the utility model；

Fig. 8 is the B direction views of Fig. 7（The shank of the key is not shown）；

Fig. 9 is the enlarged drawing near key piece connecting portion in Fig. 7；

Figure 10 eliminates the schematic diagram after key flat spring in Fig. 9 to clearly show that boss A；

Figure 11 is the enlarged drawing near the pressing plate and supporting block of driving device in Fig. 7, wherein in order to clearly show that boss B, Eliminate main spring；

Figure 12 be Fig. 7 in key piece move outward after schematic diagram, i.e., key piece unlock anti-theft lock core in hoodle Schematic diagram during component；

The C direction views of Figure 13 Figure 12（The shank of the key is not shown）；

Figure 14 is the outline drawing of Fig. 7；

Figure 15 is the D direction views of Figure 14；

In figure：

1- lock core shells, 11- locking plate limiting slots, 12- ball races；

2- lock cores, the first cavitys of 21-, the second cavitys of 22-, 23- pillars, 24- locking plate slots, 25- ball races；

3- locking plate components, 31- locking plates, 311- key slots, 312- protrusions, 32- locking plate springs；

4- hoodle components, the upper hoodles of 41-, 42- lower pellets, 43- hoodle springs；

5- the shank of the keys；

6- key bodies；

61- housings, 611- sealing plates, 6111- annular through groove, 612- groove bodies, 613- grooves, 614- inner cavities, 615- baffles, 616- supporting blocks, 6161- boss B, 617- boss A；

6121- straight troughs, 6122- crank slots, 6123- targeting ports；

62- key pieces, 621- solution locking plates, 6211- eyelets, 622- connecting portions, 6221- inclined-planes A, 6222- boss A, 623- Key flat spring；

63- driving devices, 631- drivings end, 6311- inclined-planes B, 632- connecting rod, 633- pressing plates, 6331- boss B, 634- main springs.

Specific embodiment

The technical solution of the utility model, but the scope of protection of the utility model are described in further detail below in conjunction with the accompanying drawings It is not limited to as described below.

It is the theftproof lock of the utility model below：

As shown in Fig. 2-Fig. 6, a kind of theftproof lock of the utility model and can phase including lock core shell 1 and in the lock core shell 1 The lock core 2 rotated for lock core shell 1.

The lock core 2 divides for lock core leading portion and lock core back segment, and the inside of lock core leading portion has first that section is square There is one end closing, the other end to be also square with the section that first cavity 21 connects for cavity 21, the inside of lock core back segment Second cavity 22, wherein, the width of the second cavity 22 is more than the width of the first cavity 21；One end that second cavity 22 is closed It is provided with the pillar 23 in circular ring shape towards the section of 21 protrusion of the first cavity.

In addition, the theftproof lock further includes at least two groups of locking plate components 3 and at least two groups of hoodle components 4, the lock Piece component 3 and hoodle component 4 have lock-out state and released state.Wherein, under lock-out state, lock core 2 is compared with 1 nothing of lock core shell Method rotates；Under released state, lock core 2 is rotatable compared with lock core shell 1.

The locking plate component 3 includes locking plate 31 and locking plate spring 32.The middle part of the locking plate 31 has to be inserted into key The key slot 311 of spoon, the one pair of which side of key slot 311 are each provided with a protrusion 312, and the locking plate 31 passes through locking plate bullet Spring 32 is moveably mounted in the locking plate slot 24 of lock core leading portion, the direction of the locking plate slot 24 and the axis of first cavity 21 It is perpendicular；One end of the locking plate spring 32 is fixed on the locking plate 31, and it is attached that the other end is fixed on the locking plate slot 24 Closely.As shown in Figure 2 and Figure 4, for the locking plate 31 in lock-out state, at least a portion of locking plate 31 is compared with the locking plate Slot 24 is protruded and entered in the locking plate limiting slot 11 on lock core shell 1, and the structure of the locking plate limiting slot 11 can limit entrance Locking plate 31 make it that can not be rotated compared with lock core shell 1.As shown in Figure 3 and Figure 5, the locking plate 31 is in released state, institute Some locking plates 31 are respectively positioned in the locking plate slot 24 and both sides are compared with the not evagination of locking plate slot 24.

The hoodle component 4 is arranged on the both sides of second cavity 22, and hoodle component 4 is included from lock core 2 to lock core Upper hoodle 41, lower pellet 42 and the hoodle spring 43 that 1 direction of shell is set gradually coordinate the hoodle component 4 in the lock core shell 1 With the ball race 12,25 for being provided with to accommodate hoodle component 4 on lock core 2.The hoodle component 4 is in lock-out state, such as Shown in Fig. 2, the head of upper hoodle 41 is entered by the protrusion of ball race 25 in the second cavity 22, and lower pellet 42 is stuck in 1 He of lock core shell Between lock core 2, rotation of the lock core 2 compared with lock core shell 1 is limited.The hoodle component 4 is in released state, such as Fig. 5 institutes Show, after hoodle component 4 is compared with lock-out state retraction, the contact surface of upper hoodle 41 and lower pellet 42 just with lock core 2 and lock core The contact surface of shell 1 coincides, i.e., upper hoodle 41 and lower pellet 42 are just respectively positioned at the ball race of lock core and the hoodle of lock core shell In slot, at this point, lock core 2 is rotatable compared with lock core shell 1.

Further, the hoodle component 4 acts on face on the key（The face of perforation 6211 is set on the key）With The protrusion 312 of the locking plate acts on face on the key（The face of crank slot 6211 is provided on the key）It is mutually perpendicular to.

Further, the height of the pillar 23 is the 1/3-2/3 of 22 depth of the second cavity, i.e. in Fig. 2,1/3 × H1≤ H2≤2/3 × H1 is preferably 1/2 or so.

Further, the width of second cavity 22 is 1.2-1.8 times of 21 width of the first cavity, i.e. in Fig. 2,1.2 × D1≤D2≤1.8 × D1 are preferably 1.3-1.5 times.

The theftproof lock of the utility model is respectively arranged with locking plate component 3 and hoodle component 4 in lock core leading portion and lock core back segment, Pillar 23 is also devised in the cavity of its posterior segment, which can prevent unlocking tool from protruding fully into the cavity of back segment, So as to which unlocking tool is hindered to stir the hoodle component 4 near pillar 23, i.e. unlocking tool can not stir all hoodle groups Part 4, therefore so-called technology unlocking can be effectively prevented；Furthermore since the width D 2 of the second cavity 22 is more than the first cavity 21 width Ds 1, therefore, compared with 21 retraction of the first cavity, a distance, key are entered hoodle component 4 by the first cavity 21 After second cavity 22, it is necessary to hoodle component 4 could be unlocked to both sides expansion, so as to equally also increase the difficulty of technology unlocking. Only meet the obstruction that can overcome pillar 23 simultaneously and can be unfolded to both sides, and unlock lock sheet groups part 3 and hoodle can also be corresponded to After component 4, the theftproof lock of unlock the utility model is possible to.

The key designed below for the utility model for above-mentioned theftproof lock：

As shown in Fig. 7-Figure 15, the key of the utility model is fixed including the shank of the key 5 and with the shank of the key 5 and for unlocking The key body 6 of above-mentioned lock core, the key body 6 include housing 61, key piece 62 and driving device 63.

The housing 61 is the hollow cylinder that cross section is square, and the size of housing 61 is big with first cavity 21 Small to match, the length of housing 61 is suitable plus the depth of the second cavity 22 with first cavity 21, and housing 61 is compared with key One end of the shank of the key 5 is provided with a sealing plate 611, and the middle part of the sealing plate 611 is provided with an annular through groove 6111, the annular through groove 6111 It corresponds to the pillar 23 of above-mentioned theftproof lock and designs, the pillar 23 can be allowed to extend there through.61 outer wall of housing is provided with to unlock The groove body 612 of locking plate component 3 in above-mentioned lock core 2, the groove body 612 include interconnected straight trough 6121 and crank slot 6122, wherein, Crank slot 6122 is located at close to the one side of the shank of the key 5 on the housing 61, and straight trough 6121 is located at one away from the shank of the key 5 on housing 61 Side, and the end set of straight trough 6121 has targeting port 6123, wherein, the first cavity 21 that crank slot 6122 corresponds to theftproof lock is set, The position of the trend and protrusion 312 on each locking plate 3 of 6122 flute profile of crank slot is corresponding；Since the locking plate 3 of above-mentioned theftproof lock can It horizontally slips in locking plate slot 24, therefore, when being inserted into the lock core leading portion of above-mentioned theftproof lock, targeting port 6123 can will be locked key The protrusion 312 of piece 31 is introduced in straight trough 6121, and during key is further inserted into, protrusion 312 can be along straight trough 6121 Slip into crank slot 6122, finally by the trend of 6122 flute profile of crank slot drive locking plate 31 all close in locking plate slot 24 and both sides compared with The not evagination of locking plate slot 24, so as to unlock locking plate component 3.

The key piece 62 is two, is separately positioned on housing 61 and on the opposite different from setting groove body 612, Key piece 62 includes two for solving the solution locking plate 621 and a connecting portion being connected between two solution locking plates 621 of lock pin 622。

The solution locking plate 621 is mounted on the outer wall side of the housing 61, and the outer wall of solution locking plate 621 is provided with to unlock The eyelet 6211 of hoodle component 4 in above-mentioned lock core, the eyelet 6211 correspond to the position of above-mentioned hoodle component 4 and design；It is right Locking plate 621 should be solved, is provided in the outer wall of the housing 61 for storing the groove 613 of solution locking plate 621, the groove 613 Depth is not less than the thickness of the thickness, preferably about equal to solution locking plate 621 of solution locking plate 621.

The connecting portion 622 is U-shaped structure, and the open end of U-shaped structure is fixedly connected respectively with two solution locking plates 621, Blind end is then in the inner cavity 614 of the housing 61；Connecting portion 622 in inner cavity 614 is in the one side towards the sealing plate 611 Be provided with inclined-plane A6221, and the connecting portion 622 in inner cavity 614 U-shaped structure the inner wall for being folded to place and the housing 61 it Between be provided with key flat spring 623, which holds out against the inner wall that connecting portion 622 is folded to place in compressive state one end, The other end holds out against the inner wall of housing 61.

The driving device 63 is arranged in the inner cavity 614 of the housing 61, which includes driving end 631st, connecting rod 632, pressing plate 633 and main spring 634.

Between the sealing plate 611 and the connecting portion 622, driving end 631 is leaned on for the driving end 631 The one side of nearly connecting portion 622 is provided with the inclined-plane B 6311 to match with the inclined-plane A 6221；Connect when driving end 631 pushes During socket part 622, inclined-plane B 6311 can promote inclined-plane A 6221 to move outward and compress the key flat spring 623, and then The solution locking plate 621 is driven to be stretched out from groove 613 and moved to the outside of housing 61.

Described 632 one end of connecting rod is fixedly connected with the driving end 631, the other end and the pressing plate 633 It is fixedly connected.

The pressing plate 633 and 632 fixed one side of connecting rod pass through the baffle that is arranged in 61 inner cavity 614 of housing 615 /Vs, but the baffle 615 is not necessary, can be by 611 /V of sealing plate, i.e., in the case of no baffle 615 /V drives the distalmost end of end 631.

The main spring 634 holds out against the one side for deviating from connecting rod 632 in the pressing plate 633 in compressive state one end, separately One end is held out against in the supporting block 616 of 61 end of housing.

Specifically, as shown in Figure 9 and Figure 10, positioned at the both ends of the key flat spring 623, respectively in the connecting portion The inner wall of the place of being folded to of 622 U-shaped structures and the housing 61 is each provided with a boss A 617,6222, boss A 617, The 6222 mobile /V for the fixed key flat spring 623 and to the key piece 62, i.e., as two boss A 617th, during 6222 collision, key piece 62 just cannot be displaced outwardly again.In addition, positioned at the both ends of the main spring 634, respectively in institute It states and a boss B 6331,6161 is each provided in pressing plate 633 and the supporting block 616, boss B 6331,6161 is used to fix The main spring 634 and the mobile /V to the pressing plate 633, similarly, when two boss B 6331,6161 bump against, Pressing plate 633 just cannot move still further below.It should be noted that above-mentioned boss A and boss B is mainly used for limiting key piece 62 outwards Side movement maximum range, but its be not it is necessary, can also be to key in the case of only boss A or only boss B The maximum moving distance of key piece 62 is limited, even if in addition, both there is no boss A and also without boss B in the case of, also may be used The maximum moving distance of key piece 62 is limited with the wall surface by the second cavity of theftproof lock 22, i.e., key piece 62 touches The wall surface of second cavity 22, key piece 62 just cannot be displaced outwardly again.

On the theftproof lock of the utility model and the principle of key：

First, in its natural state, as depicted in figs. 1 and 2, the lock core 2 of theftproof lock is by locking plate component 3 and hoodle component 4 lockings simultaneously, lock core 2 is not rotatable.Key under natural conditions is then as shown in fig. 7, key piece 62 is in key flat spring 623 Under the action of be contained in groove 613；End 631 is driven under the action of main spring 634, on the inner wall for acting against sealing plate 611.

When the first cavity 21 of key insertion theftproof lock, the protrusion 312 of locking plate 31 can be introduced straight trough by targeting port 6123 In 6121, and during key is further inserted into, locking plate 31 can slip into crank slot by protrusion 312 along straight trough 6121 6122, finally, since the flute profile of the crank slot 6122 of design is adapted with the distribution of protrusion 312 on locking plate 31, therefore crank slot 6122 can drive locking plate 31 to move and all close in locking plate slot 24 and both sides are compared with the not evagination of locking plate slot 24, so as to unlock Locking plate component 3；Meanwhile key, after the second cavity 22 is entered, pillar 23 can enter the annular through groove 6111 on sealing plate 611 It is interior, and the lower top driving end 631 with being further inserted into for key, when driving end 631 is moved to the connection of key piece 622 When at portion 622, inclined-plane B 6311 can promote solution locking plate 621 to be stretched out from groove 613 and to outside housing 61 by inclined-plane A 6221 Side is moved, finally, since the distribution of eyelet 6211 and the distribution of hoodle component 4 in the second cavity of theftproof lock 22 on solution locking plate 621 Match, therefore hoodle component 4 can be pushed to the position unlocked just by eyelet 6211, i.e., all upper hoodles 41 all can It shrinks back to the line of demarcation for making upper lower pellet 41,42（That is contact surface）Just with the line of demarcation of lock core 2 and lock core shell 1（That is contact surface） The position to coincide.Locking plate component 3 and hoodle component 4 are unlocked as a result, and lock core 2 can be rotated compared with lock core shell 1, complete Into the releasing process of entire theftproof lock.

Claims (6)

1. theftproof lock and key sleeve member, it is characterised in that：

The theftproof lock includes：Lock core shell（1）, positioned at lock core shell（1）It is interior and can be compared with lock core shell（1）The lock core of rotation （2）, at least two groups of locking plate components（3）At least two groups of hoodle components（4）；

The locking plate component（3）With hoodle component（4）With lock-out state and released state, wherein, lock-out state is used to limit Lockmaking core（2）Compared with lock core shell（1）Rotation；

The lock core（2）It is divided into lock core leading portion and lock core back segment, the inside of lock core leading portion has the first chamber that section is square Body（21）, the inside of lock core back segment has one end closing, the other end and first cavity（21）The section of connection is also square The second cavity（22）, wherein, the second cavity（22）Width be the first cavity（21）1.2-1.8 times of width；Described second Cavity（22）One end of closing is provided with towards the first cavity（21）The section of protrusion is in the pillar of circular ring shape（23）, the pillar （23）Height be the second cavity（22）The 1/3-2/3 of depth；

The locking plate component（3）Including locking plate（31）With locking plate spring（32）；The locking plate（31）Middle part have for inserting Enter the key slot of key（311）, key slot（311）One pair of which side be each provided with a protrusion（312）, the locking plate （31）Pass through locking plate spring（32）It is moveably mounted to the locking plate slot of lock core leading portion（24）It is interior, the locking plate slot（24）Direction with First cavity（21）Axis perpendicular；The locking plate spring（32）One end be fixed on the locking plate（31）On, separately One end is fixed on the locking plate slot（24）Near；The locking plate（31）In lock-out state, locking plate（31）At least one Split-phase is for the locking plate slot（24）It protrudes and enters positioned at lock core shell（1）On locking plate limiting slot（11）It is interior, the locking plate Limiting slot（11）Structure can limit the locking plate of entrance（31）Make it compared with lock core shell（1）It cannot rotate；The locking plate （31）In released state, whole locking plates（31）It is respectively positioned on the locking plate slot（24）Interior and both sides are compared with locking plate slot（24）No Evagination；

The hoodle component（4）It is arranged on second cavity（22）Both sides, hoodle component（4）It is upper including what is set gradually Hoodle（41）, lower pellet（42）With hoodle spring（43）, coordinate the hoodle component（4）In the lock core shell（1）And lock core（2） On be provided with to accommodate hoodle component（4）Ball race（12、25）；The hoodle component（4）In lock-out state, under Hoodle（42）Limit lock core（2）Compared with lock core shell（1）Rotation；The hoodle component（4）In released state, upper hoodle （41）With lower pellet（42）Contact surface just and lock core（2）With lock core shell（1）Contact surface coincide；

The key includes：The shank of the key（5）With with the shank of the key（5）It fixes and is used to unlock the lock core（2）Key body （6）；

The key body（6）Including housing（61）, key piece（62）And driving device（63）；

The housing（61）For the hollow cylinder that cross section is square, housing（61）Size and first cavity（21）'s Size matches, and can be inserted into first cavity（21）, housing（61）Length be not less than the first cavity（21）In addition the second cavity （22）Depth, housing（61）Compared with the shank of the key（5）One end be provided with a sealing plate（611）, the sealing plate（611）Middle part set It is equipped with an annular through groove（6111）, the annular through groove（6111）With the pillar（23）Match, pillar（23）It may pass through this Annular through groove（6111）, housing（61）Outer wall is provided with to unlock the groove body of the locking plate component (3)（612）；

The key piece（62）It is used to unlock the hoodle component including two（4）Solution locking plate（621）It is connected to one Two solution locking plates（621）Between connecting portion（622）；

The solution locking plate（621）Mounted on the housing（61）Outer wall side, solve locking plate（621）Outer wall correspond to the hoodle Component（4）Arrangement mode be provided with to unlock the hoodle component（4）Eyelet（6211）；The corresponding unlock piece（621）, The housing（61）Outer wall be provided with for store solution locking plate（621）Groove（613）, the groove（613）Depth it is not small In solution locking plate（621）Thickness；

The connecting portion（622）For U-shaped structure, the open end of U-shaped structure solves locking plates with two respectively（621）It is fixedly connected, Blind end is then located at the housing（61）Inner cavity（614）In；Inner cavity（614）In connecting portion（622）Towards the sealing plate （611）One side be provided with inclined-plane A（6221）, and inner cavity（614）In connecting portion（622）U-shaped structure be folded to place with The housing（61）Inner wall between be provided with key flat spring（623）, the key flat spring (623) is in compressive state one end top It is close to socket part（622）The inner wall at place is folded to, the other end holds out against housing（61）Inner wall；

The driving device（63）It is arranged on the housing（61）Inner cavity（614）In, the driving device（63）Including driving End（631）, connecting rod（632）, pressing plate（633）And main spring（634）；

The driving end（631）Positioned at the sealing plate（611）With the connecting portion（622）Between, drive end （631）Close to connecting portion（622）One side be provided with and the inclined-plane A（6221）The inclined-plane B to match（6311）；When driving end Head（631）Push connecting portion（622）When, inclined-plane B (6311) can promote inclined-plane A（6221）It moves outward and compresses the key Key piece spring（623）, and then drive the solution locking plate（621）To the housing（61）Outside movement, described in final unlock Hoodle component（4）；

The connecting rod（632）One end and the driving end（631）It is fixedly connected, the other end and the pressing plate （633）It is fixedly connected；

The pressing plate（633）With connecting rod（632）Fixed one side is by being arranged at the housing（61）Inner cavity（614）In gear Plate（615）/V；

The main spring（634）It is held out against in compressive state one end in the pressing plate（633）Away from connecting rod（632）One side, The other end is held out against in the housing（61）The supporting block of end（616）On.

2. theftproof lock according to claim 1 and key sleeve member, it is characterised in that：The hoodle component（4）Act on key Face and the protrusion of the locking plate on spoon（312）The face acted on the key is mutually perpendicular to.

3. theftproof lock according to claim 1 and key sleeve member, it is characterised in that：The groove body（612）Including mutual The straight trough of connection（6121）And crank slot（6122）, wherein, crank slot（6122）Positioned at the housing（61）Upper close the shank of the key（5）'s One side, straight trough（6121）Positioned at housing（61）Upper separate the shank of the key（5）One side, and straight trough（6121）End set have guiding Mouthful（6123）, wherein, crank slot（6122）The protrusion can be passed through after key is fully inserted into（312）Drive all lock sheet groups Part (3) is in released state.

4. theftproof lock according to claim 1 and key sleeve member, it is characterised in that：The key piece（62）For two, It is separately positioned on housing（61）It is upper to be different from setting groove body（612）An opposite on.

5. theftproof lock according to claim 1 and key sleeve member, it is characterised in that：Positioned at the key flat spring（623） Both ends, respectively in the connecting portion（622）U-shaped structure is folded to place and the housing（61）Inner wall be each provided with a boss A（617、6222）, boss A（617、6222）For the fixed key flat spring（623）And to the key piece （62）Mobile /V.

6. theftproof lock according to claim 1 and key sleeve member, it is characterised in that：Positioned at the main spring（634）Two End, respectively in the pressing plate（633）With the supporting block（616）On be each provided with a boss B（6331、6161）, boss B （6331、6161）For the fixed main spring（634）And to the pressing plate（633）Mobile /V.