CN116927594A - High-safety double-section lock cylinder - Google Patents

Abstract

The invention relates to the technical field of locks, and particularly discloses a high-safety double-section lock cylinder, which comprises a pair of lock cylinder units, wherein each lock cylinder unit comprises a rotating stem, the rotating stem is rotatably arranged in a lock cylinder shell, a key hole is penetrated in the rotating stem, a group of marble holes perpendicular to the key hole are formed in the rotating stem, marbles are slidably arranged in the marble holes, different marbles Kong Zhongdan are different in length, a group of pin cylinder shells are arranged above the rotating stem, the pin cylinder shells are fixedly arranged in the lock cylinder shells, pin columns are slidably arranged in the pin cylinder shells, the pin columns correspond to the marble positions, a limit table is arranged in the middle of each pin column, a spring is sleeved on the upper section of each pin column, and two ends of the spring respectively prop against the top wall of the pin cylinder shells and the limit table; the lock core units are arranged back and forth, and the lock core units at the rear side are arranged in a rotating way by 90 degrees by taking the center of the rotating core column as an axis. The invention increases the difficulty of technical unlocking and improves the safety of the purely mechanical lockset.

Description

High-safety double-section lock cylinder

Technical Field

The invention relates to the technical field of locks, in particular to a high-safety double-section lock cylinder.

Background

A lock cylinder is a key component for controlling a door lock or other type of lock. It is typically made of metal or plastic with complex internal structures and mechanisms to ensure that only the correct key or code will unlock the lock. The design and material of the lock cylinder depends on the type and use of the lock. Common lock core types include keyhole type lock cores, digital code lock cores, fingerprint lock cores, electronic chip lock cores, and the like. The keyhole type lock cylinder is still difficult to replace as a lock cylinder with a pure mechanical structure, and is widely applied to various occasions.

The safety of the lock cylinder depends on its internal structure and the quality of the material. Some advanced security locks may employ complex chip technology, tamper-resistant designs, or copy-protection measures to increase security and prevent vandalism. The types of locks on the market at present are more, the anti-theft effect is generally divided into that the time for preventing technical unlocking of the A-level lock is not less than 1 minute, and the time for preventing destructive unlocking of the A-level anti-theft lock is not less than 15 minutes; the technical unlocking time is prevented from being not less than 5 minutes, and the destructive unlocking time of the B-stage anti-theft lock is prevented from being not less than 60 minutes; the technical unlocking time of the anti-theft lock with the B level is not less than 180 minutes, and the destructive unlocking time is not less than 30 minutes.

In the traditional lock core structure (shown in fig. 8), when the marble in the lock core is completely matched with the key, the lockset can be rotated to be opened when the tops of the marble are at the same level, and the anti-theft effect is common. Therefore, a new high security dual segment lock cylinder is needed to provide a good solution to the drawbacks of the prior art.

Disclosure of Invention

The invention aims to provide a high-safety double-section lock cylinder so as to solve the problems in the background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions:

the utility model provides a high security two segmentation lock cores, includes a pair of lock core unit, the lock core unit includes rotates the stem, rotate the stem and rotate and install in the lock core shell, rotate the stem in run through and be provided with the key hole, rotate the stem on be provided with a set of marble hole perpendicular with the key hole, the marble is installed in the marble hole in a sliding way, different marble Kong Zhongdan sub-length is different, rotate the upper side of stem is provided with a set of round pin post shell, round pin post shell fixed mounting is in the lock core shell, slidable mounting has the round pin post in the round pin post shell, the round pin post corresponds with the marble position, the round pin post middle part is provided with the limit table, round pin post upper segment cover is equipped with the spring, the both ends of spring are supported respectively on the roof of round pin post shell and limit table;

the lock core units are arranged back and forth, and the lock core units at the rear side are arranged in a rotating way by 90 degrees by taking the center of the rotating core column as an axis.

Further, the pin column shell comprises a pair of square half shells, corner seats are arranged at four corners of the half shells, plug holes are formed in the corner seats, and the plug holes on the upper sides of the half shells on two sides are matched with the plug columns in a plug manner.

Further, a semicircular sleeve is arranged at the bottom of the half shell, the semicircular sleeves on the two side half shells form a pin sleeve, the pin is slidably arranged in the pin sleeve, and the port of the pin sleeve is tightly attached to the circumferential outer wall of the rotating core column.

Further, one end of the circumferential outer wall of the rotary core column is provided with a coil spring top seat, the outer side of one end of the rotary core column is provided with a coil spring sleeve, the coil spring sleeve is fixedly installed in the lock cylinder shell, the circumferential inner wall of the coil spring sleeve is provided with a coil spring base, a coil spring is placed in the coil spring sleeve, and two ends of the coil spring are respectively connected to the coil spring top seat and the coil spring base.

Compared with the prior art, the invention has the beneficial effects that:

1. the invention is provided with the double-section lock cylinder, a key is configured, the front section lock cylinder and the rear section lock cylinder are not in the same direction and have 90 DEG difference, when the front section lock cylinder and the key are completely matched, the front section lock cylinder can be rotated for 90 DEG and the rear section lock cylinder are consistent, the exclusive key can push the second section lock cylinder, and all the pins of the front section lock cylinder and the rear section lock cylinder are completely matched with the key to unlock the door lock. The invention effectively increases the difficulty of technical unlocking and improves the safety of the purely mechanical lockset.

2. In the invention, the pin column shell consists of a pair of half shells, and the half shells are connected through the plug-in column, so that mass production of parts and quick assembly of the lockset are facilitated.

3. In the invention, the semicircular sleeves are assembled on the half shell, the pin sleeve is formed by the semicircular sleeves at two sides, and the structural design is also utilized, so that the number of parts is reduced.

4. According to the invention, after the key is pulled out, the rotary core column can automatically return to the locking position under the action of the spring force of the ring spring and the limiting action of the ring spring top seat and the ring spring base, manual locking is not needed, and convenience and safety are further improved.

Drawings

FIG. 1 is a schematic diagram of a high security dual segment lock cylinder;

FIG. 2 is an exploded view of a high security dual segment lock cylinder;

fig. 3 is a cross-sectional view of the lock cylinder unit;

FIG. 4 is a schematic structural view of a half shell and a pin;

FIG. 5 is a schematic structural view of a half shell;

FIG. 6 is a schematic view of the coil spring case and coil spring;

FIG. 7 is a schematic view of the partial structure at K in FIG. 6;

fig. 8 shows a conventional lock cylinder structure.

In the figure: 1. a key cylinder unit; 2. rotating the stem; 3. a key hole; 4. a marble hole; 5. a marble; 6. a pin; 7. a limiting table; 8. a half shell; 9. a corner seat; 10. a plug hole; 11. a plug-in column; 12. a semicircular sleeve; 13. a pin housing; 14. a spring; 15. a coil spring sleeve; 16. a coil spring base; 17. a ring spring top seat; 18. and (5) a coil spring.

Detailed Description

Example 1: referring to fig. 1 to 3, a high-security dual-section lock cylinder comprises a pair of lock cylinder units 1, wherein each lock cylinder unit 1 comprises a rotary cylinder 2, each rotary cylinder 2 is rotatably arranged in a lock cylinder shell, a key hole 3 is formed in each rotary cylinder 2 in a penetrating manner, a group of marble holes 4 perpendicular to each key hole 3 are formed in each rotary cylinder 2, a marble 5 is slidably arranged in each marble hole 4, the marble 5 in each different marble hole 4 is different in length, a group of pin shells 13 are arranged above each rotary cylinder 2, each pin shell 13 is fixedly arranged in each lock cylinder shell, a pin 6 is slidably arranged in each pin shell 13, each pin 6 corresponds to each marble 5 in position, a limiting table 7 is arranged in the middle of each pin 6, springs 14 are sleeved on the upper sections of the pins 6, and two ends of each spring 14 are respectively propped against the top wall of each pin shell 13 and each limiting table 7;

the pair of lock cylinder units 1 are arranged front and back, and the lock cylinder units 1 at the rear side are placed by rotating 90 degrees with the center of the rotary cylinder 2 as the axis.

When the lock is unlocked, the first half section of the key is required to be inserted into the key hole 3 of the rotary stem 2 of the front lock cylinder unit 1, the projections on the key jack the pins 5 in the pin holes 4, the top ends of different pins 5 in the front lock cylinder unit 1 are jacked to the same position, namely the position of the circumferential outer surface of the rotary stem 2, at the moment, the pin 6 is withdrawn from the pin holes 4, the lower end is also positioned at the circumferential outer surface of the rotary stem 2, and at the moment, the rotary key can drive the rotary stem 2 to rotate;

when the rotary core column 2 rotates by 90 degrees, the positions of the key holes 3 on the front and back rotary core columns 2 are the same, at the moment, the key is continuously inserted into the key hole 3 of the rear lock core unit 1, and unlocking can be completed by repeating the front operation.

The embodiment is provided with the double-section lock cylinder, a key is configured, the front section lock cylinder and the rear section lock cylinder are not in the same direction and have 90 DEG difference, when the front section lock cylinder and the key are completely matched, the front section lock cylinder can be rotated for 90 DEG and the rear section lock cylinder are consistent in direction, the exclusive key can push the second section lock cylinder, and all the pins of the front section lock cylinder and the rear section lock cylinder are completely matched with the key to unlock the door lock. The embodiment effectively increases the difficulty of technical unlocking and improves the safety of the purely mechanical lockset.

Example 2: referring to fig. 4 to 5, a high-security dual-segment lock cylinder is different from embodiment 1 in that the pin housing 13 includes a pair of square half-shells 8, corner bases 9 are disposed at four corners of the half-shells 8, plug holes 10 are disposed in the corner bases 9, and the plug holes 10 on the upper sides of the half-shells 8 on both sides are in plug fit with plug posts 11.

In this embodiment, the pin housing 13 is composed of a pair of half shells 8, and the half shells 8 are connected through the plug-in posts 11, so that mass production of parts and quick assembly of the lock are facilitated.

Example 3: referring to fig. 4 to 5, a high-security dual-segment lock cylinder is different from embodiment 2 in that a semicircular sleeve 12 is disposed at the bottom of the half shell 8, the semicircular sleeves 12 on the two side half shells 8 form a pin sleeve, the pin 6 is slidably mounted in the pin sleeve, and a port of the pin sleeve is tightly attached to the circumferential outer wall of the rotary core column 2.

In this embodiment, the half shell 8 is assembled with the half sleeves 12, and the half sleeves 12 on both sides form a pin sleeve, which also has a structural design, so that the number of parts is reduced.

Example 4: referring to fig. 6 to 7, a high-security dual-segment lock cylinder is different from embodiment 1 in that a coil spring top seat 17 is disposed at one end of the circumferential outer wall of the rotary core column 2, a coil spring sleeve 15 is disposed at the outer side of one end of the rotary core column 2, the coil spring sleeve 15 is fixedly mounted in the lock cylinder shell, a coil spring base 16 is disposed on the circumferential inner wall of the coil spring sleeve 15, a coil spring 18 is disposed in the coil spring sleeve 15, and two ends of the coil spring 18 are respectively connected to the coil spring top seat 17 and the coil spring base 16.

In this embodiment, after the key is pulled out, under the action of the spring force of the coil spring 18 and the limiting action of the coil spring top seat 17 and the coil spring base 16, the rotary core column 2 can automatically return to the locking position, and the manual locking is not needed, so that the convenience and safety are further improved.

Claims (4)

1. The utility model provides a high security two segmentation lock cores, includes a pair of lock core unit (1), its characterized in that: the lock cylinder unit (1) comprises a rotating stem (2), the rotating stem (2) is rotatably arranged in a lock cylinder shell, a key hole (3) is formed in the rotating stem (2) in a penetrating mode, a group of marble holes (4) perpendicular to the key hole (3) are formed in the rotating stem (2), marble (5) are slidably arranged in the marble holes (4), the marble (5) in different marble holes (4) are different in length, a group of pin column shells (13) are arranged above the rotating stem (2), the pin column shells (13) are fixedly arranged in the lock cylinder shell, pin columns (6) are slidably arranged in the pin column shells (13), the pin columns (6) correspond to the marble (5) in position, a limit table (7) is arranged in the middle of the pin columns (6), springs (14) are sleeved on the upper sections of the pin columns (6), and two ends of the springs (14) are respectively abutted to the top wall of the pin column shells (13) and the limit table (7);

the lock cylinder units (1) are arranged front and back, and the lock cylinder units (1) at the rear side are rotated by 90 degrees by taking the center of the rotary core column (2) as an axis.

2. The high security dual segment lock cylinder of claim 1, wherein: the pin column shell (13) comprises a pair of square half shells (8), corner bases (9) are arranged at four corners of the half shells (8), plug holes (10) are formed in the corner bases (9), and the plug holes (10) at the upper sides of the half shells (8) at two sides are in plug fit with the plug columns (11).

3. A high security dual segment lock cylinder as claimed in claim 2, wherein: the bottom of half shell (8) is provided with semicircle cover (12), and the round sleeve (12) on both sides half shell (8) constitute the round pin post cover, round pin post (6) slidable mounting is in the round pin post cover, the port of round pin post cover hugs closely the circumference outer wall of rotating stem (2).

4. The high security dual segment lock cylinder of claim 1, wherein: the novel lock cylinder is characterized in that a ring spring top seat (17) is arranged at one end of the circumferential outer wall of the rotary core column (2), a ring spring sleeve (15) is arranged on the outer side of one end of the rotary core column (2), the ring spring sleeve (15) is fixedly arranged in the lock cylinder shell, a ring spring base (16) is arranged on the circumferential inner wall of the ring spring sleeve (15), a ring spring (18) is arranged in the ring spring sleeve (15), and two ends of the ring spring (18) are respectively connected to the ring spring top seat (17) and the ring spring base (16).