CN216921706U

CN216921706U - Technical-unlocking-preventing lock cylinder and key thereof

Info

Publication number: CN216921706U
Application number: CN202220566692.6U
Authority: CN
Inventors: 王敬才; 冯展图
Original assignee: Zhongshan Royalwand Hardware Co ltd
Current assignee: Zhongshan Huangding Technology Co ltd
Priority date: 2022-03-15
Filing date: 2022-03-15
Publication date: 2022-07-08
Anticipated expiration: 2032-03-15

Abstract

The utility model relates to a technical unlocking prevention lock core and a key thereof, which comprise a lock shell and a lock liner, wherein the lock liner is arranged in a lock liner hole of the lock shell, a key hole is formed in the lock liner, a spring assembly is arranged between the lock liner and the lock shell, the spring assembly extends into the key hole, two rows of side bead holding holes and two transverse grid grooves which are arranged corresponding to opposite sides of the two rows of side bead holding holes are formed in the surface of the lock shell, the side bead holding holes and the transverse grid grooves are communicated with the key hole, an outer spring transverse grid is longitudinally and slidably arranged in the transverse grid grooves, elastic resetting side beads are arranged in part of each row of side bead holding holes, spring-free side beads are arranged in the other part of each row of side bead holding holes, the spring-free side beads of the structure are designed to prevent the technologies such as picking and the like from having hand feeling or regular feeling, the key amount is large, and the anti-theft performance is good.

Description

Technical-unlocking-preventing lock cylinder and key thereof

Technical Field

The utility model relates to the field of lock cylinders, in particular to a lock cylinder capable of preventing technical unlocking and a key thereof.

Background

Most lock cylinders in the current market cannot be technically opened and cannot play a role in preventing theft. Especially, in recent years, the unlocking technology is continuously developed, and the lock core is generally unlocked for several seconds. In addition, the lock cylinder locking structure in the current market is simple, for example, the lock cylinder with the blade and the side column is locked by the side column, and the lock cylinders with the upper ball and the lower ball are locked by the flat balls, so that a master key is easily manufactured after batch production, and even the lock cylinder passing the C-level authentication of the ministry of public security is easily opened.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the existing problems and provides a technical unlocking prevention lock core and a key thereof, which have simple and reasonable structures, and mainly have the functions of preventing the unlocking of technologies such as picking and the like from having hand feeling or regular feeling, ensuring that the key amount is large and improving the anti-theft performance of the lock core.

The utility model provides a prevent that technique opens lock core, includes lock shell and lock courage, the lock courage is arranged in the lock courage of lock shell downthehole, be provided with the key hole in the lock courage, be equipped with bullet subassembly between lock courage and the lock shell, bullet subassembly stretches into in the key hole, two rows of side pearls are seted up on the surface of lock courage and are held the hole and correspond two horizontal bars grooves that two rows of side pearls hold the setting of holding the hole offside, side pearl holds holding the holding hole and horizontal bars groove and key hole intercommunication, horizontal bars inslot longitudinal sliding is provided with outer bullet horizontal bars, holds the holding hole in every row of side pearl and partial built-in elasticity side pearl that resets, and another part embeds there is no spring side pearl.

The aim of the utility model can also be solved by the following technical measures:

more specifically, the elastic reset side ball comprises a transverse thrust spring and a side ball, and the side ball is passively displaced along the side ball containing hole in a one-way mode through the transverse thrust spring; the springless side ball is composed of a side ball, and the side ball moves along the side ball holding hole in a bidirectional passive mode.

As a further scheme, the two outer elastic transverse bars comprise a short locking transverse bar and a long locking transverse bar, the short locking transverse bar and the long locking transverse bar are respectively arranged on the upper side and the lower side of the lock shell, and longitudinal thrust springs are arranged between the short locking transverse bar and the lock shell and between the long locking transverse bar and the lock shell; and two transverse grid locking grooves which are matched with the short locking transverse grids and the long locking transverse grids in a locking manner are arranged on the inner wall of the lock liner hole.

As a further scheme, the side marble comprises a steel ball body, a locking groove is arranged on the steel ball body corresponding to the outer marble transverse grid, and a side marble foot is arranged on one side facing the key hole.

As a further scheme, a lock shell anti-drilling pin inserted in the lock shell is arranged on the lock shell, and two lock core anti-drilling pins are arranged at the front end of the lock core close to the key hole; two lock courage anti-drilling pins set up the upper and lower both sides at the lock courage.

As a further scheme, the marble component comprises a special-shaped hanging bead, a flat bead, a bead spring and a sealing bead, wherein a hanging bead through hole communicated with a key hole is formed in the lock liner, the special-shaped hanging bead is movably arranged in the hanging bead through hole, a flat bead through hole is formed in the lock shell corresponding to the hanging bead through hole, the flat bead, the bead spring and the sealing bead are arranged in the flat bead through hole and are sequentially located between the inner end and the outer end of the flat bead through hole, the flat bead is in sliding fit with the flat bead through hole, and the sealing bead is in interference fit with the flat bead through hole.

As a further scheme, each row of side bead holding holes comprises two or more side bead holding holes, the number of the two rows of side bead holding holes is the same or different, at least one spring-free side bead is arranged in each row of side bead holding holes, and the number of the spring-free side beads arranged in the two rows of side bead holding holes is the same or different.

According to a further scheme, the special-shaped hanging beads comprise upper hanging bead parts and lower hanging bead parts, the bottoms of the lower hanging bead parts are of a conical structure or a circular truncated cone structure, a hanging bead step surface is formed between the upper hanging bead parts and the lower hanging bead parts, and limiting step surfaces matched with the hanging bead step surfaces are arranged in the corresponding special-shaped hanging bead containing holes.

As a further scheme, a groove is formed in the lock shell, a lock cylinder pulling lug coaxially connected with the lock cylinder is rotatably arranged on the groove, and a lock cylinder transmission key connected with the lock cylinder is arranged at a tail end port of the lock cylinder hole; and the lock cylinder transmission key are provided with a meson for locking and connecting with the lock cylinder puller.

A key comprises a key body, wherein two snake-shaped grooves used for triggering side ball legs are formed in the side face of the key body, one ends of the two snake-shaped grooves are opened and lead to the other end of the key body, and a spring groove used for triggering a spring assembly is formed between the two snake-shaped grooves.

The utility model has the following beneficial effects:

1. according to the technical opening prevention lock cylinder with the structure, the outer marble transverse grid and the two corresponding rows of side marble control opening and closing, all the side marbles are aligned at the same time to unlock, one or more spring-free side marbles are arranged at any position of the two rows of side marbles, and the technical opening such as picking is prevented from having hand feeling or regular feeling.

2. The technical-unlocking-prevention lock cylinder adopts the combination of the special-shaped hanging bead, the two rows of side marble and the two outer marble transverse grids, so that the key amount is large, and the anti-theft performance is good.

3. According to the technical-unlocking-preventing lock core, the lock shell is provided with the lock-shell anti-drilling pin, and the lock liner is provided with the two lock-liner anti-drilling pins, so that the lock core is prevented from being damaged by an electric drill.

4. The lock core locking mode is as follows: the special-shaped hanging bead is locked up and down, the outer elastic transverse grid is locked in a side column mode, and technical opening modes such as opening by a master key, picking and opening, opening by tinfoil, opening by a vibration gun and the like are avoided.

5. The key processing technology is complex, the precision requirement is high, the key is difficult to copy in the market, and the safety of users is ensured.

Drawings

Fig. 1 is an exploded view of the lock cylinder of the present invention.

Fig. 2 is a schematic structural view of the lock cylinder of the present invention.

FIG. 3 is a schematic view of the structure of the side marble of the present invention.

Fig. 4 is a schematic view of the key structure of the present invention.

FIG. 5 is a schematic view of the present invention showing two rows of side balls simultaneously open.

FIG. 6 is a schematic view showing the side marble and the special-shaped hanging marble of the present invention in an open state at the same time.

FIG. 7 is a schematic view of the two rows of side marbles of the present invention in a closed position at the same time.

FIG. 8 is a schematic view of the spring-free side bead of the present invention in an open position.

FIG. 9 is a schematic view of the spring-free side bead of the present invention in a closed position.

FIG. 10 is a schematic view of the side marble and the shaped hanging marble of the present invention in a closed state at the same time.

Detailed Description

The utility model is further illustrated by the following examples in conjunction with the drawings.

As shown in fig. 1 to 6, the technical unlocking prevention lock core comprises a lock shell 1 and a lock core 2, wherein the lock core 2 is arranged in a lock core hole 3 of the lock shell 1, a key hole 201 is formed in the lock core 2, a ball assembly a is arranged between the lock core 2 and the lock shell 1, the ball assembly a extends into the key hole 201, two rows of side ball containing holes 7 and two cross bar grooves 202 arranged opposite to the two rows of side ball containing holes 7 are formed in the surface of the lock core 2, the side ball containing holes 7 and the two cross bar grooves 202 are communicated with the key hole 201, an outer ball cross bar is longitudinally arranged in the cross bar grooves 202 in a sliding mode, an elastic reset side ball B is arranged in each row of side ball containing holes 7, a spring-free side ball C is arranged in the other row of side ball containing holes, the spring-free side ball C is designed to prevent technologies such as picking and the like from being unlocked, the key amount is large, and the anti-theft performance is good.

The elastic reset side ball B comprises a transverse thrust spring 15 and a side ball 9, and the side ball 9 is passively displaced along the side ball containing hole 7 in a one-way manner through the transverse thrust spring 15; when the key is inserted into the keyhole 201, the side marble 9 is passively displaced by the axial thrust of the key (i.e. the serpentine groove 502 is engaged with the side marble foot 903 of the side marble 9), and when the key is withdrawn, it is completely restored under the action of the transverse thrust spring 15; the spring-free side ball C consists of a side ball 9, and the side ball 9 is passively displaced in two directions along the side ball accommodating hole 7; the main difference between the springless side bead C and the elastic return side bead B is that the springless side bead C has no transverse thrust spring 15, the bidirectional displacement distance is completely caused by the insertion or extraction of the key, and the snake-shaped groove 502 in the key pushes, thereby realizing the passive displacement.

The two outer elastic transverse grids comprise a short outer elastic transverse grid 12 and a long outer elastic transverse grid 13, the short outer elastic transverse grid 12 and the long outer elastic transverse grid 13 are respectively arranged on the upper side and the lower side of the lock shell 1, and a longitudinal thrust spring 14 is arranged between the short outer elastic transverse grid 12 and the lock shell 1 as well as between the long outer elastic transverse grid 13 and the lock shell 1; and two transverse grid locking grooves 4 which are matched with the short outer elastic transverse grids 12 and the long outer elastic transverse grids 13 in a locking way are arranged on the inner wall of the lock liner hole 3.

Specifically, the bottoms of the two ends of the short outer elastic transverse bar 12 and the long outer elastic transverse bar 13 are provided with stealing

notches

121 and 131, and one end of the longitudinal thrust spring 14 is placed in the stealing

notches

121 and 131 to realize positioning.

The side marble 9 comprises a steel ball body 901, a locking groove 902 corresponding to the outer marble transverse grid is arranged on the steel ball body 901, and a side marble foot 903 is arranged on one side facing the key hole 201; after a correct key is inserted into the locking groove 902, the outer spring transverse grid can fall into the locking groove 902, the outer spring transverse grid is unlocked to be locked in the transverse grid locking groove 4, and when the side ball foot 903 is used for inserting the correct key, the side ball 9 is pushed to move axially in the side ball accommodating hole 7.

The lock shell 1 is provided with a lock shell anti-drilling pin 18 inserted into the lock shell 1, and the lock cylinder 2 is provided with two lock cylinder anti-drilling pins 19 close to the front end of the key hole 201; two lock core anti-drilling pins 19 are arranged on the upper side and the lower side of the lock core 2; two lock courage anti-drilling pins 19 set up the upper and lower both sides at lock courage 2, prevent that the electric drill from destroying the lock core.

The spring component A comprises a special-shaped hanging bead 8, a flat bead 11, a bead spring 17 and a sealing bead 16, a hanging bead through hole 6 communicated with a key hole 201 is formed in the lock liner 2, the special-shaped hanging bead 8 is movably arranged in the hanging bead through hole 6, a flat bead through hole 101 is formed in the lock shell 1 corresponding to the hanging bead through hole 6, the flat bead 11, the bead spring 17 and the sealing bead 16 are arranged in the flat bead through hole 101 and are sequentially located between the inner end and the outer end of the flat bead through hole 101, the flat bead 11 is in sliding fit with the flat bead through hole 101, and the sealing bead 16 is in interference fit with the flat bead through hole 101;

the lock core is locked up and down through the special-shaped hanging beads 8 and the flat beads 11, the outer marble transverse bars are matched with the side marble 9 in a locking mode to control the lock core to be opened and closed together, the special-shaped hanging beads 8, the two rows of side marble 9 and the two outer marble transverse bars are combined, the key amount is large, and the anti-theft performance is good.

Each row of side bead holding holes 7 comprises two or more side bead holding holes 7, the number of the two rows of side bead holding holes 7 is the same or different, at least one spring-free side bead C is arranged in each row of side bead holding holes 7, and the number of the spring-free side beads C arranged in the two rows of side bead holding holes 7 is the same or different.

The special-shaped hanging bead 8 comprises a hanging bead upper part 801 and a hanging bead lower part 802, the bottom of the hanging bead lower part 802 is in a conical structure or a circular truncated cone structure, a hanging bead step surface 803 is formed between the hanging bead upper part 801 and the hanging bead lower part 802, and a limiting step surface 601 matched with the hanging bead step surface 803 is arranged in the corresponding special-shaped hanging bead 8 containing hole.

A groove 102 is formed in the lock shell 1, a lock cylinder pulling lug 20 coaxially connected with the lock cylinder 2 is rotatably mounted on the groove 102, and a lock cylinder transmission key 21 connected with the lock cylinder 2 is mounted at a tail end port of the lock cylinder hole 3; the lock core 2 and the lock core transmission key 21 are provided with a meson 22 used for locking and connecting with the lock core pulling handle 20; the lock cylinder 2 and the lock cylinder driving key 21 are locked by the meson 22.

A key comprises a key body 5, wherein two snake-shaped grooves 502 used for triggering side ball legs are arranged on the side surface of the key body 5, one ends of the two snake-shaped grooves 502 are opened and lead to the other end of the key body 5, and a ball groove 501 used for triggering a ball component A is arranged between the two snake-shaped grooves 502.

The lock core is implemented specifically as follows:

the starting principle is as follows: referring to fig. 5, 6 and 8, three schematic diagrams of the open state are shown, (1) when a correct key is inserted into the cylinder 2, the key drives the special-shaped hanging bead 8, and the top of the special-shaped hanging bead 8 is flush with the outer circle of the cylinder 2. (2) The key drives the side balls 9 corresponding to the outer ball cross bars to align the locking grooves 902 of the side balls 9 with the outer ball cross bars, so that the shear force of the rotating key can force the outer ball cross bars to retract into the lock liner 2. After all the lock core structures are unlocked, the key can be rotated to open the lock core.

The closing principle is as follows: referring to fig. 7, 9 and 10, three schematic diagrams of the open state are shown, when a key is pulled out or a foreign object is unlocked, the shaped hanging bead 8 is pressed into the keyhole 201 of the cylinder 2 under the action of the flat bead 11, and the flat bead 11 locks the lock shell 1 to prevent rotation. The outer bullet horizontal bars reset under the action of the corresponding two rows of side marble 9, the locking grooves 902 of the side marble 9 and the outer bullet horizontal bars are staggered, the outer bullet horizontal bars are prevented from retracting into the lock cylinder 2, the lock shell 1 is locked, and then the lock cylinder 2 is prevented from rotating. All the locking devices are independently locked, and as long as one locking device is not released, the lock cylinder 2 cannot be opened, and the lock cylinder is in a closed state.

The foregoing is a preferred embodiment of the present invention, and the basic principles, principal features and advantages of the utility model are shown and described. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the present invention, but various changes and modifications may be made without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims

1. The utility model provides a prevent that technique opens lock core, includes lock shell and lock courage, the lock courage is arranged in the lock courage of lock shell downthehole, be provided with the key hole in the lock courage, be equipped with the bullet subassembly between lock courage and the lock shell, the bullet subassembly stretches into in the key hole, its characterized in that: the lock comprises a lock core, a lock core and a lock core, wherein the lock core is provided with a key hole, the lock core is provided with a lock cylinder, the lock cylinder is provided with two rows of side ball holding holes and two transverse grid grooves corresponding to opposite sides of the two rows of side ball holding holes, the side ball holding holes and the transverse grid grooves are communicated with a key hole, an outer elastic reset side bar transverse grid is longitudinally arranged in the transverse grid groove in the lock cylinder, an elastic reset side ball holding hole is longitudinally arranged in each row of the lock cylinder, the lock cylinder is internally provided with an elastic reset side ball holding holes in each row of the lock cylinder, the lock cylinder is internally provided with an elastic reset side balls are internally provided with an elastic reset side balls in each row of the lock cylinder, the elastic reset side balls are longitudinally and the lock cylinder, the elastic reset side balls are internally provided with an elastic reset side balls are arranged in each side balls in each row of each side balls in each row of the lock cylinder, the lock.

2. The technical opening prevention lock cylinder according to claim 1, characterized in that: the elastic reset side ball comprises a transverse thrust spring and a side marble, and the side marble is driven to move along the side marble containing hole in a one-way mode through the transverse thrust spring; the springless side ball is composed of a side ball, and the side ball moves along the side ball holding hole in a bidirectional passive mode.

3. A technical tamper resistant lock cylinder according to claim 1, characterized in that; the two outer elastic transverse bars comprise short locking transverse bars and long locking transverse bars, the short locking transverse bars and the long locking transverse bars are respectively arranged on the upper side and the lower side of the lock shell, and longitudinal thrust springs are arranged between the short locking transverse bars and the lock shell and between the long locking transverse bars and the lock shell; and two transverse grid locking grooves which are matched with the short locking transverse grids and the long locking transverse grids in a locking manner are arranged on the inner wall of the lock liner hole.

4. A technical opening prevention lock cylinder according to claim 2, characterized in that; the side marble comprises a steel ball body, a locking groove is arranged on the steel ball body corresponding to the outer marble transverse grid, and a side marble foot is arranged on one side facing the key hole.

5. The technical opening prevention lock cylinder according to claim 1, characterized in that: the lock shell is provided with a lock shell anti-drilling pin which is inserted into the lock shell, and the lock cylinder is provided with two lock cylinder anti-drilling pins close to the front end of the key hole; two lock courage anti-drilling pins set up the upper and lower both sides at the lock courage.

6. A technical tamper resistant lock cylinder according to claim 1, characterized in that; the ball component comprises a special-shaped hanging ball, a flat ball, a ball spring and a sealing ball, wherein a hanging ball through hole communicated with a key hole is formed in the lock liner, the special-shaped hanging ball is movably arranged in the hanging ball through hole, the lock shell is correspondingly provided with a flat ball through hole, the flat ball, the ball spring and the sealing ball are arranged in the flat ball through hole and are sequentially located between the inner end and the outer end of the flat ball through hole, the flat ball is in sliding fit with the flat ball through hole, and the sealing ball is in interference fit with the flat ball through hole.

7. The technical unlocking prevention lock cylinder as claimed in claim 1, wherein; each row of side bead holding holes comprises two or more side bead holding holes, the number of the two rows of side bead holding holes is the same or different, at least one spring-free side bead is arranged in each row of side bead holding holes, and the number of the spring-free side beads arranged in the two rows of side bead holding holes is the same or different.

8. The technical opening prevention lock cylinder according to claim 6, characterized in that: the special-shaped hanging bead comprises a hanging bead upper part and a hanging bead lower part, the bottom of the hanging bead lower part is of a conical structure or a round platform structure, a hanging bead step surface is formed between the hanging bead upper part and the hanging bead lower part, and a limiting step surface matched with the hanging bead step surface is arranged in the corresponding special-shaped hanging bead containing hole.

9. The technical opening prevention lock cylinder according to claim 1, characterized in that: a groove is formed in the lock shell, a lock cylinder pulling piece coaxially connected with the lock cylinder is rotatably mounted on the groove, and a lock cylinder transmission key connected with the lock cylinder is mounted at a tail end opening of the lock cylinder hole; and the lock cylinder transmission key are provided with a meson for locking and connecting with the lock cylinder puller.

10. A key as defined in claim 4, comprising a key body, wherein the side of said key body is provided with two serpentine grooves for activating said side ball legs, one end of said two serpentine grooves being open and leading to the other end of the key body, and a spring groove for activating the spring assembly being provided between the two serpentine grooves.