CN109538009B

CN109538009B - Anti-prizing lock core

Info

Publication number: CN109538009B
Application number: CN201910069345.5A
Authority: CN
Inventors: 魏欣
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-01-24
Filing date: 2019-01-24
Publication date: 2023-05-16
Anticipated expiration: 2039-01-24
Also published as: CN109538009A

Abstract

The invention relates to an anti-picking lock core, which comprises a core shell, an inner core, a connector and a poking head, wherein the inner core is rotatably arranged in the core shell, the inner core comprises a lock liner with a lock hole at the center, and a plurality of blades arranged on two sides of the lock liner, the upper end of each blade is provided with an opening, a strip-shaped hole is axially arranged on the lock liner, a movable strip-shaped pin is arranged in the strip-shaped hole, a spring sheet is propped against the upper part of the strip-shaped pin, and the connector is arranged on one side, opposite to the lock hole, of the lock liner and is connected with the poking head; when a key is inserted into the lock hole, the upper ends of the blades are opened, the openings on the blades form a strip-shaped groove corresponding to the strip-shaped hole, the strip-shaped pin is connected with the connector after completely falling into the strip-shaped groove under the action of the elastic force of the elastic piece, and the rotary lock liner drives the shifting head to rotate for unlocking. The invention has simple structure, can unlock after complete contact, has enhanced anti-picking performance, solves the problem of blocking between the marble and the spring by using the cooperation of the elastic sheet and the strip pin, and also enhances the difficulty of powerful unlocking.

Description

Anti-prizing lock core

Technical Field

The invention relates to a lockset, in particular to an anti-picking lock cylinder which has a simple structure, can not be blocked and can prevent a powerful lock from being picked.

Background

The use of locks in everyday life is everywhere visible, and security is also a focus of attention. The existing mechanical lock core mainly uses the cooperation of cylindrical marble and spring. The contact surface between the pins and the core of the lock core is limited, and the pins are spaced easily by unlocking tools of non-matched keys, so that the safety of the lock core cannot meet the requirements of the prior society, and the lock core is complex in structure, high in production cost and high in failure rate, and can also generate the problem that the springs block the movement of the pins to prevent unlocking when in use.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the anti-picking lock cylinder which has a simple structure, can not be blocked and can prevent the lock from being picked forcefully.

The technical scheme adopted for solving the technical problems is as follows:

the utility model provides an anti-picking lock core, includes the core, rotatable setting up in the core, connector, the plectrum that the core includes the lock courage that the center was equipped with the lockhole, along the crisscross a plurality of blades of installing in lock courage both sides of lock courage axial, every the upper end of blade all is equipped with the opening, be equipped with the bar hole along the axial on the lock courage, be equipped with movable bar round pin in the bar hole, the top of bar round pin is equipped with a shell fragment of fixing on the lock courage and supporting the pressure at bar round pin top, the connector sets up in the lock courage and is connected with the plectrum with the opposite one side of lockhole; when a key is inserted into the lock hole, the upper ends of the blades are opened along the radial direction of the lock liner, the openings on the blades form a strip-shaped groove corresponding to the strip-shaped hole, the strip-shaped pin is connected with the connector after completely falling into the strip-shaped groove under the action of the elastic force of the elastic piece, and the lock liner is rotated to drive the shifting head to rotate for unlocking.

Preferably, one end of the bar pin is a connecting portion connected with the connector, the other end of the bar pin is a clamping portion with an inverted trapezoid cross section, the upper portion of the cross section is a lower portion of the bar, the lower portion of the opening is a clamping matching portion matched with the clamping portion, the depth of the clamping matching portion is not smaller than the height of the clamping portion, a groove with the width being matched with the width of the bar pin is formed in the connector, and the connecting portion is clamped into the groove when the clamping portion completely falls into the clamping matching portion.

Preferably, the two blades are flatly attached to form a scissor-shaped buckle, the lock liner is axially provided with a plurality of scissor-shaped buckles at intervals along the lock liner, two blades of each scissor-shaped buckle are respectively provided with a clamping foot, and the two clamping feet are oppositely arranged and connected through a spring; when a key is inserted into the lock hole, the corresponding key teeth enable the two clamping legs of the corresponding scissor-shaped clamping buckles to open or close, and the springs deform to enable the openings at the upper ends of the two blades to form strip-shaped grooves corresponding to the strip-shaped holes.

Preferably, a first through hole corresponding to the lock hole and used for inserting the key is arranged in the middle of each blade of the scissor-shaped buckle, and a sliding block corresponding to sliding on the key is arranged on the upper wall and/or the lower wall of the first through hole.

Preferably, the left side and the right side of each opening are respectively provided with a strip-shaped second through hole in the left-right direction, and the two pins correspondingly penetrate through the second through holes in the left side and the right side to be fixedly connected with the lock liner and limit the movement of the blade on the lock liner.

Preferably, two sets of inner cores and connectors are arranged in the core shell, and the two connectors are correspondingly connected to two sides of the same shifting head.

Preferably, a poking pin is arranged at the tail end of the connector.

Preferably, a clamping spring is arranged between the connector and the shifting head.

Preferably, the elastic sheet is a cross-shaped elastic sheet, the long side of the elastic sheet correspondingly presses against the strip-shaped pin, and the short side of the elastic sheet is fixedly connected to the lock cylinder.

Preferably, the inner core is matched with a key, the key teeth of the key are wavy grooves formed in the surface of the key rod, the key rod is inserted to enable the blades to open to form a strip-shaped groove, and the blades are provided with sliding blocks sliding in the wavy grooves.

The invention has the beneficial effects that: the lock cylinder is simple in structure, the contact area of the bar pin is large by using the bar pin and the elastic piece, unlocking can be achieved after complete contact, the anti-prying performance is enhanced, meanwhile, the elastic piece is pressed against the bar pin by using the cooperation of the elastic piece and the bar pin, the movement of the bar pin and the lock liner cannot be blocked, the problem of faults such as blocking between the spring and the spring in the traditional mechanical lock cylinder is solved, the strong unlocking difficulty is further enhanced, and the safety of the lock cylinder is enhanced.

Drawings

FIG. 1 is a schematic exploded view of an embodiment of the present invention;

FIG. 2 is a schematic view of a bar pin in an embodiment of the present invention;

FIG. 3 is a schematic view of a scissors-shaped buckle according to an embodiment of the present invention;

FIG. 4 is a schematic view of the blade in the lock housing after insertion of a key in an embodiment of the invention;

FIG. 5 is a schematic view showing the internal state of the lock case after a key is inserted in the embodiment of the present invention;

FIG. 6 is a schematic view of the blade in the lock housing without the key inserted in an embodiment of the invention;

part names and serial numbers in the figure: 1-core shell 2-inner core 20-lock liner 21-blade 200-lockhole 201-bar hole 210-opening 211-clamping leg 212-first through hole 213-slide block 214-second through hole 2100-clamping fit portion 3-connector 30-groove 31-poking pin 32-clamping spring 4-poking head 5-bar pin 50-connecting portion 51-clamping portion 6-elastic sheet 7-key 70-wave groove 8-spring 9-pin.

Detailed Description

For a clearer description of the objects, aspects and advantages of the present invention, reference will be made to the following detailed description of the invention taken in conjunction with the accompanying drawings and examples, which illustrate, by way of example, some, but not all embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present invention, based on the embodiments of the present invention. Furthermore, directional terms, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., in the present invention are used only with reference to the directions of the attached drawings, and are used for better and more clear description and understanding of the present invention, not to indicate or imply the orientations that the present invention must have, and thus should not be construed as limiting the present invention.

The embodiment of the invention is shown in fig. 1 to 6, an anti-picking lock core, which comprises a core shell 1, an inner core 2 rotatably arranged in the core shell 1, connectors 3 and a poking head 4, wherein the aim of unlocking or locking is achieved by rotating the inner core 2 in the core shell 1, different numbers of inner cores can be designed according to the requirement, the inner core can be a set of inner cores 2, two sets of inner cores 2 and two connectors 3 are arranged in the core shell 1, the two connectors 3 are correspondingly connected at two sides of the same poking head 4, the two sets of inner cores 2 and the two connectors 3 are arranged at two sides to unlock the lock, the inner core 2 comprises a lock liner 20 with a lock hole 200 at the center and a plurality of blades 21 which are arranged at two sides of the lock liner 20 in a staggered manner along the axial direction of the lock liner 20, the blades 21 at two sides of the lock liner 20 are alternately arranged, so that a pair of blades 21 at the opposite sides are included between the blades 21 at the two same sides, the adjacent two blades 21 are staggered, each blade 21 is provided with a corresponding sliding block like the blades in the traditional mechanical lock cylinder, a staggered cipher type arrangement is formed among the blades 21, the lock can be unlocked only by a matched key, the safety of the lock is ensured, the installation of each blade 21 on the lock liner 20 can be realized by arranging a hole corresponding to the blade 21 or a notch corresponding to the blade 21 on the lock liner 20, different settings can be carried out according to the production condition, the upper end of each blade 21 is provided with an opening 210, the lock liner 20 is axially provided with a strip-shaped hole 201 along the lock liner 20, a movable strip-shaped pin 5 is arranged in the strip-shaped hole 201, the strip-shaped hole 201 is used as a containing cavity of the strip-shaped pin 5, the strip-shaped pin 5 can completely fall out from the strip-shaped hole 201 and can be pushed back into the strip-shaped hole 201 under the action of external force, the spring plate 6 fixed on the lock liner 20 and propped against the top of the bar pin 5 is arranged above the bar pin 5, so that the spring plate 6 is compressed in the locked state, the bar pin 5 can be assisted to fall out of the bar hole 201 through the elastic force of the spring plate 6 in unlocking, the bar pin 5 can be prevented from falling out of the bar hole 201 from the other side when pushed back to the bar hole 201, meanwhile, the spring plate 6 can stretch in the bar hole 201 in unlocking, the rotation of the lock liner 20 is not hindered, the blocking phenomenon is not generated, and the connector 3 is arranged on one side, opposite to the lock hole 200, of the lock liner 20 and is connected with the shifting head 4; when the key 7 is inserted into the lock hole 200, the blades 21 move radially in cooperation with the key 7, the adjacent two blades 21 move to the parallel position to eliminate dislocation between the two blades, the upper ends of the blades 21 are opened radially along the lock liner 20, at the moment, the opening 210 on each blade 21 forms a strip-shaped groove corresponding to the strip-shaped hole 201, the strip-shaped pin 5 falls into the strip-shaped groove completely under the action of the elastic force of the elastic piece 6, after the strip-shaped pin 5 falls into the strip-shaped groove completely, the strip-shaped pin 5 is connected with the connector 3, and after the lock liner 20 is rotated, the strip-shaped pin 5 and the connector 3 are transmitted to the poking head 4, so that the poking head 4 is rotated to unlock. The lock cylinder is simple in structure, the contact area of the bar pin 5 and the elastic piece 6 are large, the lock can be unlocked only after complete contact is needed, the anti-picking performance is enhanced, meanwhile, the elastic piece 6 is pressed against the bar pin 5 by the cooperation of the elastic piece 6 and the bar pin 5, the bar pin 5 and the movement of the lock liner 20 cannot be blocked, the problem of faults such as blocking between the spring and the spring in the traditional mechanical lock cylinder is solved, the difficulty of picking the lock is further enhanced, and the safety of the lock cylinder is enhanced.

Further, as shown in fig. 2, one end of the bar pin 5 is a connecting portion 50 connected with the connector 3, the other end is a clamping portion 51 with a bar-shaped upper portion and an inverted trapezoid-shaped lower portion, the end of the clamping portion 51 is formed with an inclined surface, so that the bar pin 5 can fall into or push out of the bar groove, the bar pin 5 can be completely contacted with the bar groove and can be connected with the connector 3 through the arrangement of the connecting portion 50 and the clamping portion 51, the inverted trapezoid-shaped structure of the clamping portion 51 is beneficial for pushing the bar pin 5 out of the bar groove by the blade 21 after the key 7 is pulled out of the lock hole 200, as shown in fig. 3, the lower portion of the opening 210 is a clamping fit portion 2100 matched and clamped with the clamping portion 51, and the depth of the clamping fit portion 2100 is not smaller than the height of the clamping portion 51, so that the section of the clamping fit portion 2100 is inverted trapezoid, the depth is not smaller than the height of the engaging portion 51, so that after the engaging portion 51 falls into the engaging and mating portion 2100 completely, the connecting portion 50 is connected with the connector 3, so that the pick 4 can rotate, when the engaging portion 51 does not fall into the engaging and mating portion 2100 completely, the connecting portion 50 is not connected to the connector 3, the lock container 20 can rotate but is in an idle state, the pick 4 cannot be driven to rotate by the pick 4 through the bar pin 5 and the connector 3, the pick 4 cannot rotate and cannot be unlocked, as shown in fig. 1, in order to mate the connection of the connecting portion 50 and the connector 3, a groove 30 with a width adapted to the width of the bar pin 5 is provided on the connector 3, when the engaging portion 51 falls into the engaging and mating portion 2100 completely, the connecting portion 3 is clamped into the groove 30, the width of the groove 30 on the connector 3 matches the width of the bar pin 5, after the bar pin 5 is clamped into the groove 30, the unlocking is not affected by the swing generated by unstable connection.

Further improvement, as shown in fig. 1 and fig. 3 to fig. 6, the blades 21 are also one of important components for the safety of the lock, for better anti-picking and anti-theft, two blades 21 are flatly attached to form a scissor-shaped buckle, two blades 21 can relatively move to eliminate dislocation so that an opening 210 at the upper end of the blade can form a bar-shaped groove, the lock liner 20 is provided with a plurality of scissor-shaped buckles at intervals along the axial direction of the lock liner 20, the safety of the lock can be better improved by arranging a plurality of buckles, unlocking can be realized only when a plurality of buckles form a bar-shaped groove in parallel, a bar pin cannot fall into the bar-shaped groove completely as long as one buckle is misplaced, and unlocking cannot be realized, two blades 21 of each scissor-shaped buckle are provided with a clamping foot 211, and the two clamping feet 211 are oppositely arranged and are connected through a spring 8, so that after the key 7 is pulled out, the two blades 21 can be automatically opened or closed through the spring 8; when the key 7 is inserted into the lock hole, the blades 21 move along with the key teeth on the key 7, the corresponding key teeth open or close the two clamping legs 211 of the corresponding scissor-shaped buckle, and the springs 8 deform to enable the openings 210 at the upper ends of the two blades 21 to be arranged in parallel to form a strip-shaped groove corresponding to the strip-shaped hole 201, so that the formed strip-shaped groove is opposite to the strip-shaped hole 201, and the strip-shaped pin 5 can be smoothly dropped into or pushed out of the strip-shaped groove, and the fault phenomena such as blocking and the like are avoided. At this time, a first through hole 212 corresponding to the lock hole 200 is provided in the middle of each blade 21 of the scissor-shaped buckle, and a sliding block 213 corresponding to sliding on the key 7 is provided on the upper wall and/or the lower wall of the first through hole 212, so that each buckle can be conveniently connected in series by the key 7 through the first through hole 212 to achieve the unlocking purpose. In order to enable the blades 21 mounted on the lock cylinder 20 to be opened or closed smoothly, but not to be separated from the lock cylinder, the left and right sides of each opening 210 are provided with strip-shaped second through holes 214 in the left and right directions, two pins 9 correspondingly penetrate through the second through holes 214 in the left and right sides to be fixedly connected with the lock cylinder 20 and limit the movement of the blades 21 on the lock cylinder 20, at the moment, the pins 9 are fixed on the lock cylinder 20, the blades 21 are not fixed, but cannot be separated from the lock cylinder 20 due to the existence of the pins 9, the strip-shaped second through holes 214 in the left and right directions ensure the movement of the blades 21 in the radial direction of the lock cylinder 20, and meanwhile, the movement of the blades 21 is limited according to the cooperation of the blades 21 and the keys 7.

As shown in fig. 1 and 5, a poking pin 31 is arranged at the tail end of the connector 3, and the poking pin 31 can enable the connector 3 to smoothly rotate to unlock the transmission poking head 4. Meanwhile, the clamping spring 32 is arranged between the connector 3 and the poking head 4, so that the connector 3 can be better connected with the poking head 4, the stability of a connecting structure between the connector 3 and the poking head 4 is guaranteed, and the problem of poor connection cannot be caused, so that the use of the lock is affected.

As shown in fig. 1 and 5, the spring 6 is a cross spring, the long side of the spring is correspondingly pressed against the bar pin 5, the short side of the spring is fixedly connected to the lock container 20, so that the spring 6 does not have a portion protruding out of the surface of the lock container 20, the long side of the spring is pressed against the bar pin 5, that is, within the range of the bar hole 201, the short side of the spring is fixed on the lock container 20, and the lock container 20 is not blocked from rotating during the rotation of the lock container 20, and the blocking phenomenon is not generated.

Further improvement, as shown in fig. 1 and 6, since the staggered arrangement of the blades 21 in the core 2 ensures the security of the lock, the core 2 is matched with a key 7, the key teeth of the key 7 are wavy grooves 70 arranged on the surface of the key rod, the blades 21 are provided with sliding blocks 213 sliding in the wavy grooves 70, the blades 21 slide along the wavy grooves 70 when the key rod is inserted, the upper ends of the blades 21 are opened, and the openings 210 at the upper ends form bar-shaped grooves.

While the present invention has been described with respect to the anti-pick cylinder, it will be understood by those skilled in the art that the foregoing and various other changes, modifications, substitutions, combinations, and simplifications may be made without departing from the spirit of the invention, and it is intended that the invention as defined in the appended claims be interpreted as including equivalents thereof.

Claims

1. The utility model provides an anti-picking lock core which characterized in that: the novel lock comprises a core shell, an inner core, a connector and a poking head, wherein the inner core is rotatably arranged in the core shell, the inner core comprises a lock liner with a lock hole in the center, and a plurality of blades which are axially and alternately arranged on two sides of the lock liner along the lock liner, the upper end of each blade is provided with an opening, a strip-shaped hole is axially arranged on the lock liner, a movable strip-shaped pin is arranged in the strip-shaped hole, an elastic sheet which is fixed on the lock liner and is propped against the top of the strip-shaped pin is arranged above the strip-shaped pin, and the connector is arranged on one side, opposite to the lock hole, of the lock liner and is connected with the poking head; when a key is inserted into the lock hole, the upper ends of the blades are opened along the radial direction of the lock liner, the openings on the blades form a strip-shaped groove corresponding to the strip-shaped hole, the strip-shaped pin is connected with the connector after completely falling into the strip-shaped groove under the action of the elastic force of the elastic piece, and the lock liner is rotated to drive the shifting head to rotate for unlocking.

2. The anti-pry lock cylinder of claim 1, wherein: the connecting device comprises a connecting head, a bar-shaped pin, an opening, a clamping matching part, a groove and a connecting part, wherein one end of the bar-shaped pin is a connecting part connected with the connecting head, the other end of the bar-shaped pin is a clamping part, the upper part of the cross section of the clamping part is in a shape of an inverted trapezoid, the lower part of the opening is a clamping matching part matched and clamped with the clamping part, the depth of the clamping matching part is not smaller than the height of the clamping part, the connecting head is provided with the groove with the width adapted to the width of the bar-shaped pin, and the connecting part is clamped into the groove when the clamping part completely falls into the clamping matching part.

3. The anti-pry lock cylinder of claim 1, wherein: the two blades are flatly attached to form a scissors-shaped buckle, the lock liner is axially provided with a plurality of scissors-shaped buckles at intervals along the lock liner, two blades of each scissors-shaped buckle are respectively provided with a clamping foot, and the two clamping feet are oppositely arranged and connected through a spring; when a key is inserted into the lock hole, the corresponding key teeth enable the two clamping legs of the corresponding scissor-shaped clamping buckles to open or close, and the springs deform to enable the openings at the upper ends of the two blades to form strip-shaped grooves corresponding to the strip-shaped holes.

4. A pick-resistant lock cylinder as claimed in claim 3, wherein: a first through hole corresponding to the lock hole and used for enabling a key to be inserted is arranged in the middle of each blade of the scissor-shaped buckle, and a sliding block corresponding to sliding on the key is arranged on the upper wall and/or the lower wall of the first through hole.

5. The anti-pry lock cylinder of claim 1, wherein: the left side and the right side of each opening are provided with strip-shaped second through holes in the left-right direction, and two pins correspondingly penetrate through the second through holes in the left side and the right side to be fixedly connected with the lock liner and limit the movement of the blade on the lock liner.

6. The anti-pry lock cylinder of claim 1, wherein: two sets of inner cores and connectors are arranged in the core shell, and the two connectors are correspondingly connected to two sides of the same shifting head.

7. The anti-pry lock cylinder of claim 1, wherein: the tail end of the connector is provided with a poking pin.

8. The anti-pry lock cylinder of claim 1, wherein: and a clamp spring is arranged between the connector and the shifting head.

9. The anti-pry lock cylinder of claim 1, wherein: the elastic sheet is a cross-shaped elastic sheet, the long side of the elastic sheet correspondingly presses against the strip-shaped pin, and the short side of the elastic sheet is fixedly connected to the lock liner.

10. The anti-pry lock cylinder of claim 1, wherein: the inner core is matched with a key, the key teeth of the key are wavy grooves formed in the surface of the key rod, the key rod is inserted to enable the blades to open to form a strip-shaped groove, and the blades are provided with sliding blocks sliding in the wavy grooves.