CN108798244A - A kind of theftproof lock - Google Patents

Abstract

The invention discloses a kind of theftproof locks, lock core including lock body and in the lock body, the key slot being inserted into for key is provided in the lock core, the key slot includes straight trough and at least one skewed slot, the skewed slot is communicated with straight trough and is obliquely installed relative to straight trough, it is each configured with the first locking member and the second locking member at the skewed slot and straight trough, can first locking member and the second locking member is used to restriction lock core rotate relative to lock body, have and lock and unlock two states.Key slot has the characteristic of deflecting in the present invention, when unlocking, key is after being inserted into straight trough, need first to unlock the second locking member at straight trough, then deflecting enters in skewed slot again and unlocking the first locking member at skewed slot could make lock core integrally be unlocked, for technology unlocking tool, in key slot deflecting be difficult just, moreover becomes the first locking member for also needing to unlock again backward at skewed slot, be practically impossible to.

Description

A kind of theftproof lock

Technical field

The present invention relates to mechanical lock field more particularly to a kind of anti-theft performance locks very outstanding.

Background technology

Currently, state's internal cylinder is in the market, include the lock of tri- kinds of ranks of A, B, C.A grades lock generally comprise a traditional letter lock, The lock of only row's pinball structure in cross lock, crescent lock and most of lock core, anti-theft is poor, and mutual opening rate is high, technology The time is opened generally at several seconds to two minutes or so, and in the numerous burglaries occurred at home, the stolen portal of majority uses All it is A grades of locks.B grades of locks have double-row marble slot, have been more than key face that a row is having many bends or curves irregular with the A grades of different places of lock Groove, lock core main Types are 3 kinds, the double lock core of computer, double crescent moon lock core and two-sided blade lock core, anti-technical to open Time, mutual opening rate was high, and by turning round tool by force, lock core can be opened in 1 minute in 5 minutes.It is safer currently on the market It is C grades of locks, uses double, computer, composite curve groove key, opened without law technology within 270 minutes, but C grades of locks is in financial industry It is civilian less using more.The uncaging time of three kinds of ranks is different, and the time is longer, and safety coefficient is higher, and stolen can Energy property is lower.

But present A grades, B grades, C grades of locks, key groove track is all straight-through, so tool holds enters key slot very much In, then thief stirs hoodle or locking plate with skill again.In straight-through track, for experienced thief, tool is used All it is openable, only the problem of uncaging time length.

Invention content

Technical problem to be solved by the invention is to provide a kind of theftproof locks, and the key groove track with deflecting makes work Tool deflecting can not be deep into the innermost end of key slot in slot, to prevent so-called technology unlocking, greatly improve the anti-of lockset Steal performance.

The technical solution adopted by the present invention to solve the technical problems is：A kind of theftproof lock, including lock body and be located at the lock Internal lock core is provided with the key slot being inserted into for key in the lock core, and the key slot includes straight trough and at least one A skewed slot, the skewed slot are communicated with straight trough and are obliquely installed relative to straight trough, are respectively configured at the skewed slot and straight trough There are the first locking member and the second locking member, first locking member and the second locking member to be used to limit lock core It can be rotated relative to lock body, have and lock and unlock two states.

Lock pin only could be solved when the first locking member and the second locking member are all located at unlocked state as a result, is locked Core could be rotated relative to lock body.

The advantageous effect of above-mentioned theftproof lock is：Currently, the key slot of market upper lock core is all straight trough, technology unlocking tool is It can enter and stir unlock, only the problem of unlocked time length；And in the present invention, the key slot of lock core is then by straight trough It is constituted with skewed slot, that is to say, that the key slot has the characteristic of deflecting, and when unlocking, key needs first to solve after being inserted into straight trough The second locking member at straight trough is locked, then deflecting enters in skewed slot and unlocks the first locking member at skewed slot and can just make again Lock core is obtained integrally to be unlocked, and for current technology unlocking tool, realize that deflecting has been difficult just condition in key slot And become the first locking member for also needing to go again backward at unlock skewed slot（On condition that having unlocked the first locking member）, almost not May, therefore the theftproof lock of the present invention has extremely strong anti-theft performance.

Further, the lock core includes lock core shell, guider and hoodle component；

The lock core shell includes leading portion and back segment, and the straight trough is located in leading portion lock core shell, back segment lock core shell tool There is inclined-plane A；

The guider is arranged with inclined-plane B, the inclined-plane B cooperations inclined-plane A, between two inclined-planes described in formation Skewed slot；

First locking member is hoodle component, which corresponds to the skewed slot and be mounted on back segment lock core shell and lock In vivo, can be used to limit lock core shell rotate relative to lock body, have and lock and unlock two states；

For the skewed slot after being inserted into compatible key, the inclined-plane B of guider can hold out against the one side of key, make key Another side pushes hoodle component, is at the unlocked state.

In above-mentioned further scheme, the leading portion and back segment of lock core shell are also the sequencing that is inserted into using key as reference. It should be noted, it is to be located at back segment lock core shell inside or outer surface that the inclined-plane A, which is not limited, and similarly, inclined-plane B is not also limited It is fixed, as long as forming the skewed slot between the two；The hoodle component is current cylinder lock with balls（Or spring lock）Chang Cai Component, including hoodle and spring.

The principle of the further scheme is：After the key being adapted to this theftproof lock first passes through straight trough, turn again to enter skewed slot, In skewed slot, the key unlock hoodle component is at unlocked state, to achieve the purpose that unlock.Every group of hoodle Component can there are many arrangements, different arrangements to correspond to a kind of arrangement of key eyelet, to key and bullet Pearl component corresponds, and only arrangement is corresponding to unlock.

Further, the guider is configured with elastic parts, and the elastic restoring force of the elastic parts drives guiding Device is held out against to the inclined-plane sides A elasticity.

In the further scheme, since guider is that elasticity holds out against inclined-plane A, when key is inserted into skewed slot, lead To device meeting retraction, so that skewed slot is opened, be convenient for the insertion of key, guider can hold out against key again after insertion, drive key top Tight hoodle component, if the eyelet of key and the arrangement of hoodle component match at this time, hoodle component will be in unlock State.

Further, the lock core further includes being arranged in the sealing end at the guider back side, the elastic parts Including connecting screw and spring, the connecting screw sequentially passes through on first axis through-hole and guider on sealing end The second axially extending bore after be fixed in back segment lock core shell upper screwed hole, the aperture of second axially extending bore is more than connecting screw Outer diameter, the spring overcoat holds out against guider, other end top tight sealing end in connecting screw and in compressive state one end Head.

Since the aperture of the second axially extending bore on guider is more than the outer diameter of connecting screw, as a result, guider energy It is oblique to increase to which when key is inserted into skewed slot, key can push guider elasticity retraction along the axial movement of connecting screw Slot reduces resistance when key is inserted into, and spring can push guider elasticity to hold out against key again after insertion, can hold out against simultaneously Unlock hoodle component.In addition, it should be noted that, the back side of above-mentioned alleged guider is the side be inserted into using key as reference, The side being inserted into far from key is the back side；Among the above, the axial direction of first axis through-hole and the second axially extending bore refers to and straight trough The parallel direction of axis.

Further, further include connection sheet for limit, the end face of the sealing end and the end face face of lock core shell connect It touches, one end of the connection sheet is fixed on sealing end, and the other end is buckled on the boss structure of lock body outer wall, for limiting lock The axial movement of core.

It is as a result, that face contacts with the end face of lock core shell due to the end face of sealing end, sealing end is again by guider In being sealed in, therefore sealing end, guider and lock core shell can be drawn over to one's side and be buckled on the boss structure of lock body by connection sheet, be led to The axial movement of boss structure limitation lock core is crossed, but should be noted, which does not limit lock core and turn relative to lock body It is dynamic.

Further, second locking member is locking plate, and the locking plate is coordinated to be provided with radial direction at the straight trough Locking plate slot, the locking plate is slidably arranged in the locking plate slot.The locking plate slot and locking plate be current blade lock frequently with Component, the present invention is designed into straight trough, to increase the difficulty of unlock straight trough, improves the anti-theft performance of lockset；The locking plate It can link with compatible groove on the key, when not being inserted into key, locking plate is in the lock state so that lock core cannot be relative to Lock body rotates, and when being inserted into compatible key, groove can drive locking plate mobile and be ultimately at unlocked state, to make lock core Shell can be rotated relative to lock body.It should be noted, above-mentioned so-called radial direction refers to the direction with straight trough axis perpendicular.

Further, the quantity of the skewed slot is two or four, and is symmetric.Certainly, the quantity of skewed slot Can be one, three or more, two or four only two kinds of preferred embodiments therein.

In above-mentioned further scheme, the quantity more than one of skewed slot further increases the difficulty of technology unlocking.Currently, There is no any tool that can realize deflecting in the track of key slot, if occurring reversible tool in the future, thief also is difficult to oblique Hoodle firmly is stirred in slot, moreover when skewed slot more than one, it is also necessary to while stirring the hoodle ability unlocked in multiple skewed slots For solution lock pin, this split lock tool or thief, it is practically impossible to completion.

Further, it is communicated in the middle part of the skewed slot and straight trough.

The present invention also provides another theftproof lock, including lock body and the lock core in the lock body, in the lock core It is provided with the key slot being inserted into for key, the key slot includes straight trough and at least one skewed slot（25）, the skewed slot with Straight trough is communicated and is obliquely installed relative to straight trough, and the first locking member, the described first locking are configured at the skewed slot Can component rotate for limiting lock core relative to lock body, have and lock and unlock two states.

Above-mentioned theftproof lock is provided with the first locking member at skewed slot, and technology unlocking tool is it is difficult to become in key slot Back into skewed slot and the first locking member is unlocked, therefore the theftproof lock of the present invention has high anti-theft performance.

Further, the lock core includes lock core shell, guider and hoodle component；

The lock core shell includes leading portion and back segment, and the straight trough is located in leading portion lock core shell, back segment lock core shell tool There is inclined-plane A；

The guider is arranged with inclined-plane B, the inclined-plane B cooperations inclined-plane A, between two inclined-planes described in formation Skewed slot；

First locking member is hoodle component, which corresponds to the skewed slot and be mounted on back segment lock core shell and lock In vivo, can be used to limit lock core shell rotate relative to lock body, have and lock and unlock two states；

For the skewed slot after being inserted into compatible key, the inclined-plane B of guider can hold out against the one side of key, make key Another side pushes hoodle component, is at the unlocked state.

Description of the drawings

Fig. 1 is the explosive view of the theftproof lock of embodiment 1（This is not shown in figure connection sheet）；

Fig. 2 is the enlarged drawing of lock core shell and locking plate component in Fig. 1；

Fig. 3 is the structural schematic diagram of the theftproof lock of embodiment 1；

Fig. 4 is the A-A of Fig. 3 to section view；

Fig. 5 is the structural schematic diagram of the locking plate of embodiment 1；

Fig. 6 is the structural schematic diagram of the key of embodiment 1, and wherein key piece is in closed configuration（The figure only shows two keys Piece）；

Fig. 7 is the structural schematic diagram of the key of embodiment 1, wherein the open-shaped state of key piece（The figure only shows two keys Piece）；

Fig. 8 is the shape assumption diagram of the key of embodiment 1；

Fig. 9 is the B direction views of Fig. 8；

Figure 10 is the C direction views of Fig. 8；

Schematic diagram when Figure 11 is the key unlock theftproof lock of embodiment 1；

Figure 12 is the schematic diagram when theftproof lock of embodiment 1 is in the lock state；

Figure 13 is the shape assumption diagram of the lock core shell of theftproof lock and guider in embodiment 2；

Figure 14 is the shape assumption diagram of key in embodiment 2；

Figure 15 is the upward view of guider in embodiment 2；

In figure label for：1- lock bodies, 2- lock cores, 11- boss structures, 12- locking plate accommodating chambers, 13- ball races B, 21- lock core shell, 22- guiders, 23- hoodle components, 24- straight troughs, 25- skewed slots, 26- elastic parts, 27- seal end, 28- connection sheets, 29- Locking plate, 30- locking plate springs, 211- leading portion lock core shells, 212- back segment lock core shells, the second axially extending bore of the inclined-planes 221- B, 222-, 223- short slots, the upper hoodles of 231-, 232- lower pellets, 233- hoodle springs, 261- connecting screws, 262- springs, 271- first axles To through-hole, 291- protrusions, 2111- locking plate slots, 2112- locking plate spring grooves, the inclined-planes 2121- A, 2122- threaded hole, 2123- hoodles Slot A；3- handles, 4- key bodies, 5- returning devices, the main part of 41- key bodies, the key piece of 42- key bodies, 51- returns Bar, 52- return springs, 53- resetting pistons, 54- returns end, 411- grooves, 421- eyelets, the straight grooves of 422-, 423- drainages Chamfering, the height of H1- locking plate accommodating chambers, the height of H2- locking plates.

Specific implementation mode

The present invention is described in further detail with reference to specific embodiment, but embodiments of the present invention are not limited to This.

The theftproof lock of the present invention, including lock body 1 and the lock core 2 being set in the lock body 1, the lock core 2 is relative to lock Body 1, which has, locks and unlocks two states, and lock core 2 can be rotated relative to lock body when positioned at unlocked state.It is provided in lock core 2 For the key slot that key is inserted into, which includes straight trough 24 and at least one skewed slot 25, the skewed slot 25 and 24 phase of straight trough Lead to and be obliquely installed relative to straight trough 24, the first locking member and second are each configured at the skewed slot 25 and straight trough 24 Can locking member, first locking member and the second locking member are used to restriction lock core 2 rotate relative to lock body 1, With two states of locking and unlock.

Cooperation has also been devised in the present invention, and this is antitheft with the key used, which includes key handle 3 and for unlock The main part 41 of key body 4, the key body 4 coordinates the straight trough 24 of the theftproof lock to be molded, and is provided in main part 41 Coordinate the skewed slot 25 of the theftproof lock to be molded and can be inserted into the key piece 42 in the skewed slot 25.

Based on said program, the present invention is listed below embodiment:

Embodiment 1：

As Figure 1-Figure 5, the theftproof lock of the present embodiment, the lock core 2 include lock core shell 21, guider 22, hoodle group Part 23 and sealing end 27.

The lock core shell 21 includes leading portion and back segment, and the straight trough 24 is located in leading portion lock core shell 211, the back segment There are four inclined-plane A 2121 for the inside tool of lock core shell 212, and as depicted in figs. 1 and 2, four inclined-plane A 2121 are in crossing distribution；

There are four the inclined-plane B 221 protruded, inclined-plane B 221 to coordinate the inclined-plane A 2121 for the appearance tool of the guider 22 Setting is also in cross distribution.The skewed slot 25 described in four is formed between four inclined-planes 2121,221 as a result, wherein opposite Two skewed slots 25 are V-shaped；

In the present embodiment, it is four groups that hoodle component 23 is configured at skewed slot 25 and is used as the first locking member, the hoodle component 23, point Not Dui Ying four skewed slots 25 install, every group of hoodle component 23 is installed in the ball race A 2123 and lock body 1 of back segment lock core shell 212 Ball race B 13 in, have lock and unlock two states, lock core shell 21 cannot be 1 turn with respect to lock body when in a locked condition It is dynamic.Specifically, every group of hoodle component 23 includes five upper 231, five lower pellets 232 of hoodle and five hoodle bullets in the present embodiment Spring 233, the arrangement of the hoodle in every group of hoodle component 23 can there are many, i.e., the spacing of each hoodle, position can arbitrary cloth It sets；The lock-out state of hoodle component is there are two types of situation, one is when being not inserted into key (hoodle spring 233 is in the raw), Lower pellet 232 is stuck between back segment lock core shell 212 and lock body 1, and as shown in figure 12, to block the rotation of lock core 2, another kind is When the eyelet of be inserted into key and the arrangement of hoodle mismatch, key pushes up hoodle 231 and is at back segment lock core after the meeting Between shell 212 and lock body 1, the rotation of lock core 2 is equally blocked；As shown in figure 11, the unlocked state of hoodle component is, when being inserted into key When the eyelet of spoon and the arrangement of hoodle match, under the action of eyelet, after 233 retraction of upper hoodle 232 and lower pellet just It is located at well in back segment lock core shell 212 and lock body 1, at this time the line of demarcation of upper lower pellet and back segment lock core shell 212 and lock body 1 Line of demarcation is flush, and back segment lock core shell 212 is unlocked, and can just be rotated along the line of demarcation of upper lower pellet.

The sealing end 27 is used to seal the internal part of lock core 2, is concave inward structure, is arranged in guider 22 The back side, and the end plane-plane contact of end face and back segment lock core shell 212 makes guider 22 be located in the groove of the concave inward structure. The guider 22 is also configured with elastic parts 26, and elastic parts 26 includes connecting screw 261 and spring 262, the connection After screw 261 sequentially passes through the second axially extending bore 222 on first axis through-hole 271 and guider 22 on sealing end 27 It is fixed in the threaded hole 2122 on back segment lock core shell 212, wherein the aperture of the second axially extending bore 222 is slightly larger than connecting screw 261 outer diameter, the spring 262 is coated at connecting screw 261 on the step surface of the second axially extending bore 222, and is in Compressive state one end holds out against guider 22, other end top tight sealing end 27.When key is inserted into skewed slot 25, key can sinciput Guider 22 makes guider 22 along 261 axial retraction of connection bolt, to make 25 width of skewed slot widen, convenient for key Into when the arrangement of the eyelet of key and hoodle matches, after key is fully inserted into, upper hoodle 231 is all directed at key The eyelet of spoon, the at this time meetings of inclined-plane B 221 of guider 22 hold out against the side of key under the action of 262 elastic restoring force of spring Face makes the eyelet of key another side that upper hoodle 231 be pushed to make hoodle component 23 just at unlocked state.

It is used as the second locking member, the present embodiment to use four groups of locks in addition, the present embodiment configures locking plate 29 at straight trough 24 Piece component, each group locking plate component include three locking plates 29 and three locking plate springs 30, and locking plate 29 is frame-shaped construction, and centre, which has, to be supplied Two opposite side of the slot that key is inserted into, slot are equipped with for the protrusion 291 with the linkage of the groove of key, accordingly, in leading portion lock core shell The locking plate slot 2111 moved radially for locking plate 29 is provided on 211, described 30 one end of locking plate spring is mounted on locking plate 29, separately One end is mounted on the locking plate spring groove 2112 on 2111 side of locking plate slot, meanwhile, lock is equipped on the lock body 1 of locking plate component corresponding position Piece accommodating chamber 12；When locking plate 29 in the raw when（When being not inserted into key）, locking plate 29 is in locking plate slot 2111 in stagger arrangement point Cloth, from the both sides of locking plate slot 2111, protrusion enters in locking plate accommodating chamber 12 locking plate 29 respectively, the height of the locking plate accommodating chamber 12 H1 is slightly larger than the height H2 of locking plate 29（As shown in Figure 4 and Figure 5）, locking plate 29 can be limited around axis after locking plate 29 enters accommodating chamber Rotation, to limit rotation of the lock core shell 21 relative to lock body 1, only when be inserted into the groove of key with it is convex on locking plate 29 291 are played when being adapted, ditch key can just drive all locking plates 29 to be moved in locking plate slot 2111 and both sides not evagination, at this time leading portion Lock core shell 211 could be rotated relative to lock body 1.

To enable each component of lock core 2 to be rotated as a whole relative to lock body 1, it is fixed with and cuts on sealing end 27 Face is L-shaped connection sheet 28, and connection sheet 28 is buckled in after fixing on the boss structure 11 of 1 outer wall of lock body again, due to sealing end 27 It is the end plane-plane contact acted against on back segment lock core shell 212 with back segment lock core shell 212, so the connection sheet 28 can be by lock core Each component by boss structure 11 limits its axial movement after drawing over to one's side as a whole, but it should be noted that, the connection sheet 28 It is not intended to limit rotation of the lock core 2 relative to lock body 1.

As shown in Fig. 6-Figure 10, the key of the present embodiment, in the above-mentioned theftproof lock locking plate of the surface engagement of main part 41 29 On protrusion 291 offer groove 411, when key is inserted into the straight trough 24 of above-mentioned theftproof lock, groove 411 can drive each locking plate 29 are moved in locking plate slot 2111 and not evagination, to unlock leading portion lock core shell 211；Key in 41 end of main part is set The quantity of piece 42 is four, and the arrangement that the outside of key piece 42 corresponds to above-mentioned hoodle is provided with and can make at the hoodle component 23 In the eyelet 421 of unlocked state.

Specifically, four key pieces 42 are hinged on the end of key body part 41；In the main part 41 of key It is additionally provided with returning device 5, the returning device is for making key piece 42 automatically reset（Four key pieces, which are in, draws close state）, return Position device 5 includes return pin 51, return spring 52, resetting piston 53 and return end 54, and return pin 51 is arranged in main part 41 inside, return end 54 are fixed at the root on the external end head of return pin 51 and between four key pieces 42, are returned Position piston 53 is then fixed in the inner termination of return pin 51, is sleeved in return pin 51 outside return spring 52, and one end holds out against return work Plug 53, one end holds out against the end face inside main part 41.Therefore, when key when not used, as shown in fig. 6, in return spring 52 Under effect, return pin 51 is withdrawn, and return end 54 makes four key pieces 42 be in closed configuration, the key piece 42 after gathering and master Body portion 41 flushes, to store or store key；When key is inserted into skewed slot 25, as seen in figs. 7 and 11, in guiding device Under the action of 22 inclined-plane B221, four key pieces 42, which can open, to be had respectively entered in four skewed slots 25, at this time 54 quilt of return end Key piece 42 jacks up, and return pin 51 is stretched out, and after key takes out, return pin 51 can be withdrawn again, makes key piece 42 again in gathering State.

About the antitheft lock & key of the present embodiment, it should be noted that, since key piece 42 is to be inserted into straight trough 24 at first, And have locking plate 29 at straight trough 24, there are protrusion 291, therefore the influence to prevent raised 291 pairs of key pieces 42 to be inserted on locking plate 29, matches The protrusion 291 on 29 opposite side of locking plate is closed, offers on corresponding two key pieces 42 and is communicated with 41 groove 411 of main part Straight groove 422, and the front end of straight groove 422 is equipped with drainage chamfering 423, to which key piece 42 is when being inserted into straight trough 24, drains The protrusion 291 of locking plate 29 can be introduced into straight groove 422 by chamfering 423 first, when then key continues into, raised 291 energy In the groove 411 that straight groove 422 moves to main part 41,42 energy of key piece ensure that from there through straight groove 422 is designed It is not influenced by protrusion 291, is smoothly inserted into straight trough.After protrusion 291 enters groove 411, it is further continued for being inserted into key, key piece 42 is just It is separated along skewed slot 24, while groove 411 can also drive locking plate 29 to move, final groove 411 unlocks locking plate component, eyelet 421 Hoodle component 23 is unlocked, the unlock of straight trough 24 and skewed slot 25 is respectively completed, is unlocked so that lock core shell 21 is whole, then It is rotated further by the handle 3 of key, key piece 42 will drive rotating together for lock core shell 21 and guider 22, and lock core shell 21 It is linked together by connecting screw 261 and sealing end 27, therefore seal end 27 can also rotate therewith, is finally existed Under the action of connection sheet 28, the component of lock core 2 can be rotated with the rotation of key as a whole, complete the solution of theftproof lock Lock.

It should be noted, the attached drawing of the present embodiment does not show that the shifting block of the theftproof lock, and during fabrication, shifting block can be arranged It seals on end 27 or at other rational positions, can guarantee can rotate together with lock core 2.

Embodiment 2：

The present embodiment is roughly the same with the technical solution of embodiment 1, and main distinction point is, the number of the present embodiment theftproof lock skewed slot Amount is two.

Based on two skewed slots, the present embodiment has made following change to the lock core and key of embodiment 1：

About lock core, quantity of the inside with inclined-plane A 2121 of back segment lock core shell 212 is two, and as shown in figure 13, two tiltedly Face A 2121 is distributed in linear type；Corresponding, it is two that the appearance of guider 22, which has the quantity of the inclined-plane B 221 of protrusion, Also it is in that a word is distributed；The skewed slot 25 described in two is formed between two inclined-planes 2121,221 as a result, and two skewed slots 25 are in V Shape；Certainly, the quantity of hoodle component 23 is also just two groups, corresponds to two skewed slots 25 respectively and is arranged.

About key, in order to play the role of protecting returning device, the quantity of key piece 42 is still four, four keys Piece 42 can play the role of protecting returning device after collapsing, and shape is also more beautiful；Wherein, for unlocking hoodle component 23 a pair of of key piece 42 is articulated connection with main part 41, and another pair key piece 42 can be then hinged with main part 41 It connects or is fixedly connected or be integrally formed with main part 41, as shown in figure 14, the present embodiment is for being integrally formed；When It also needs to open up straight groove 422 and drainage chamfering 423, function on the key piece 42 of 41 groove of right main part, 411 front end It is same as Example 1.

Among the above, since the quantity of key piece is four, and the quantity of skewed slot is two, therefore after key is inserted into, is had Two key pieces will not deflecting, so the two key pieces is coordinated to need to open up hole at the middle part of guider 22 or lack Slot 223 avoids it from stopping the insertion of key, as shown in figure 15 so that the two key pieces extend there through.

It should be noted, the quantity of skewed slot is not limited to four or two, and selection four or two skewed slots are above-mentioned reality Two kinds of preferred embodiments that example is enumerated are applied, certainly, skewed slot may be one, three or more, and details are not described herein.

In the above two embodiments, what the second locking member was all made of is locking plate, but it should be noted that, the second sticking department Hoodle component or other, which can also be used, in part has the component for locking lock core function；Similarly, other can also be used in the first locking member Component with locking lock core function.In the above two embodiments, skewed slot is connected in straight trough end, certainly, skewed slot Also connection may be selected at the middle part of straight trough, details are not described herein for concrete structure.

Both examples above, is each configured with locking plate component and hoodle component at straight trough and skewed slot, and when unlocking needs same Shi Xiesuo locking plates component and hoodle component can unlock, therefore have extremely strong anti-theft performance, and professional unlocking staff is using current Even if tool unlocked the locking plate of straight trough after, it is also difficult to become the hoodle component for unlocking skewed slot again backward in key groove track, Moreover with multiple skewed slots, it is also necessary to while the hoodle component in each skewed slot is unlocked, this is to current technology people It can not possibly accomplish for member and tool.Therefore the theftproof lock anti-theft performance of the present invention is excellent, has good market prospects, A kind of theftproof lock that security performance is high is provided for current lockset market, better than C grades lock at present on the market.

Claims (10)

1. a kind of theftproof lock, including lock body（1）With positioned at the lock body（1）Interior lock core（2）, the lock core（2）Inside it is provided with The key slot being inserted into for key, it is characterised in that：The key slot includes straight trough（24）With at least one skewed slot（25）, described Skewed slot（25）With straight trough（24）It communicates and relative to straight trough（24）It is obliquely installed, in the skewed slot（25）And straight trough（24）Place It is each configured with the first locking member and the second locking member, first locking member and the second locking member are used to Limit lock core（2）It can be relative to lock body（1）Rotation has and locks and unlock two states.

2. theftproof lock according to claim 1, it is characterised in that：The lock core（2）Including lock core shell（21）, be oriented to dress It sets（22）With hoodle component（23）；

The lock core shell（21）Including leading portion and back segment, the straight trough（24）Positioned at leading portion lock core shell（211）It is interior, it is described Back segment lock core shell（212）With inclined-plane A（2121）；

The guider（22）With inclined-plane B（221）, inclined-plane B（221）The cooperation inclined-plane A（2121）Setting, Two inclined-planes（2121,221）Between form the skewed slot（25）；

First locking member is hoodle component（23）, the hoodle component（23）The corresponding skewed slot（25）After being mounted on Section lock core shell（212）And lock body（1）It is interior, it is used to limit lock core shell（21）It can be relative to lock body（1）Rotation, have locking and Unlock two states；

The skewed slot（25）After being inserted into compatible key, guider（22）Inclined-plane B（221）The one of key can be held out against Side makes the another side of key push hoodle component（23）, it is at the unlocked state.

3. theftproof lock according to claim 2, it is characterised in that：The guider（22）Configured with elastic parts （26）, the elastic parts（26）Elastic restoring force drive guider（22）To inclined-plane A（2121）Side elasticity is held out against.

4. theftproof lock according to claim 3, it is characterised in that：The lock core（2）Further include being arranged in guider （22）The sealing end at the back side（27）, the elastic parts（26）Including connecting screw（261）And spring（262）, described Connecting screw（261）Sequentially pass through sealing end（27）On first axis through-hole（271）And guider（22）On second Axially extending bore（222）After be fixed on back segment lock core shell（212）Upper screwed hole（2122）It is interior, second axially extending bore（222）'s Aperture is more than connecting screw（261）Outer diameter, the spring（262）It is coated at connecting screw（261）And it is in compressive state one End holds out against guider（22）, other end top tight sealing end（27）.

5. theftproof lock according to claim 4, it is characterised in that：It further include the connection sheet for limit（28）, described close Block head（27）End face and lock core shell（21）End plane-plane contact, the connection sheet（28）One end be fixed on sealing end （27）On, the other end is buckled in lock body（1）The boss structure of outer wall（11）On, for limiting lock core（2）Axial movement.

6. according to the theftproof lock described in any one of claim 1-5, it is characterised in that：Second locking member is lock Piece（29）, coordinate the locking plate（29）In the straight trough（24）Place is provided with radial locking plate slot（2111）, the locking plate （29）It is slidably arranged in the locking plate slot（2111）It is interior.

7. according to the theftproof lock described in any one of claim 1-5, it is characterised in that：The skewed slot（25）Quantity be two It is a or four, and be symmetric.

8. theftproof lock according to claim 1, it is characterised in that：The skewed slot（25）With straight trough（24）Middle part phase It is logical.

9. a kind of theftproof lock, including lock body（1）With positioned at the lock body（1）Interior lock core（2）, the lock core（2）Inside it is provided with The key slot being inserted into for key, it is characterised in that：The key slot includes straight trough（24）With at least one skewed slot（25）, described Skewed slot（25）With straight trough（24）It communicates and relative to straight trough（24）It is obliquely installed, in the skewed slot（25）Place is configured with first Locking member, first locking member is for limiting lock core（2）It can be relative to lock body（1）Rotation has locking reconciliation Lock two states.

10. theftproof lock according to claim 9, it is characterised in that：The lock core（2）Including lock core shell（21）, be oriented to Device（22）With hoodle component（23）；

The lock core shell（21）Including leading portion and back segment, the straight trough（24）Positioned at leading portion lock core shell（211）It is interior, it is described Back segment lock core shell（212）With inclined-plane A（2121）；

The guider（22）With inclined-plane B（221）, inclined-plane B（221）The cooperation inclined-plane A（2121）Setting, Two inclined-planes（2121,221）Between form the skewed slot（25）；

First locking member is hoodle component（23）, the hoodle component（23）The corresponding skewed slot（25）After being mounted on Section lock core shell（212）And lock body（1）It is interior, it is used to limit lock core shell（21）It can be with respect to lock body（1）Rotation has locking reconciliation Lock two states；

The skewed slot（25）After being inserted into compatible key, guider（22）Inclined-plane B（221）The one of key can be held out against Side makes the another side of key push hoodle component（23）, it is at the unlocked state.