High-strength lock with special-shaped lock cylinder

Abstract

The high-strength lock comprises a lock cylinder shell, a middle groove is formed in one side of the lock cylinder shell, and a set of lock cylinders and a set of special-shaped lock cylinders are installed at the positions, located on the two sides of the middle groove, in the lock cylinder shell correspondingly; an inner groove is formed in the position, corresponding to the special-shaped lock cylinder, in the lock cylinder shell, a stress plate is elastically installed in the inner groove, a set of positioning insertion rods are installed at the position, corresponding to the middle of the middle groove, of the upper portion of the stress plate in a penetrating mode, and a set of synchronous insertion rods are installed at the position, corresponding to the special-shaped lock cylinder, of the upper portion of the stress plate in a penetrating mode. A first supporting spring installed in an inner groove is used for applying upward thrust to a first supporting rod and a second supporting rod, and it is guaranteed that a positioning inserting rod and a synchronous inserting rod are inserted into a rotating pin shaft and a special-shaped lock cylinder correspondingly to complete locking; when a key does not penetrate through the rotating pin shaft and is inserted into the special-shaped lock cylinder to jack up the special-shaped abutting blocks, the special-shaped lock cylinder cannot be rotated, so that the rotating pin shaft cannot be rotated, and the overall use strength of the lock body is improved.

Description

Technical Field

[0001] The invention relates to the technical field of special-shaped lock cores, in particular to a high-strength lock with a special-shaped lock core. Background Art

[0002] Special-shaped locks are locks that are different in shape or structure from conventional locks, and usually have a unique keyhole design to enhance anti-theft performance. For example, the Tibetan maze lock is a typical special-shaped lock that appeared in the Tibetan area of ​​Yunnan Province in the late Qing Dynasty. This lock adopts a special structure and an irregular keyhole design, which makes it impossible to open with ordinary keys, thereby improving anti-theft performance.

[0003] According to the authorization announcement number CN 202882574 U, a new type of special-shaped lock core is disclosed, including a lock shell, a lock core, and a lock column. A lock core is arranged in the lock shell, and a lock column is arranged at the lower end of the lock core through a reset pin mechanism; a key hole is arranged in the middle of the lock core; AB marbles are arranged at the bottom of one end of the key hole through a reset pin mechanism, and a lower docking pin is arranged at the bottom of the other end of the key hole through a reset pin mechanism; the lower docking pin is arranged in a lower docking pin hole arranged at the lower end of the lock core; at the same time, an upper docking pin hole is arranged at the upper end of the key hole corresponding to the lower docking pin hole, and an upper docking pin is arranged in the upper docking pin hole; the beneficial effects of the present invention are as follows: simple structure and low production cost; at the same time, 68 billion different key number changes are realized by combining three different special-shaped lock beads with 5 groups of different blade groove structures, so that the key is difficult to copy, has good confidentiality and security, and can effectively prevent technical opening.

[0004] The encryption technology used in the prior art is mostly a single set of encryption pins to improve the overall strength of the lock core, but the single set of encryption bullets is still too thin during use and cannot meet the higher strength of use. Therefore, a high-strength lock with a special-shaped lock core is needed. Summary of the invention

[0005] The object of the present invention is to provide a high-strength lock with a special-shaped lock core, by which the rotating pin is controlled by synchronous use of a positioning rod and a synchronization rod, thereby improving the strength of the lock core during the unlocking process, so as to solve the technical problems mentioned in the background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a high-strength lock with a special-shaped lock core, comprising a lock core housing, a middle groove is opened on one side of the lock core housing, a group of lock cores and a group of special-shaped lock cores are respectively installed on both sides of the middle groove inside the lock core housing, and a rotating pin is rotatably installed inside the middle groove;

[0007] An inner groove is provided inside the lock core shell corresponding to the position of the special-shaped lock core, a force-bearing plate is elastically installed inside the inner groove, a group of positioning plug rods are installed through the upper part of the force-bearing plate corresponding to the middle position of the middle groove, and a group of synchronization plug rods are installed through the upper part of the force-bearing plate corresponding to the installation position of the special-shaped lock core;

[0008] Several groups of movable blocks are symmetrically and elastically installed inside the special-shaped lock core, and two groups of positioning holes are symmetrically opened on the outer arc surface of the special-shaped lock core corresponding to the position of the synchronous insertion rod, and the synchronous insertion rod is elastically inserted into the positioning hole;

[0009] The outer arc surface of the rotating pin shaft is provided with a slot, and the positioning rod is elastically inserted into the slot.

[0010] Preferably, a plurality of groups of limiting holes are provided inside the lock core shell at positions corresponding to the lock core, a group of elastic pin structures are elastically installed inside each group of limiting holes, and insertion holes are provided through the lock core at positions corresponding to each group of elastic pin structures.

[0011] Preferably, several groups of first support springs are equidistantly installed inside the inner groove, the force-bearing plate is installed at the top of each group of the first support springs, a group of first support rods are installed on the upper surface of the force-bearing plate corresponding to the middle of the middle groove, a first limit plate is installed on the top of the first support rod, the positioning rod is installed at the center of the upper surface of the first limit plate, and the outer arc surface of the first limit plate is slidably installed in contact with the inner wall of the inner groove.

[0012] Preferably, a second support rod is fixedly installed at a position corresponding to the positioning hole on the outer arc surface of the special-shaped lock cylinder on the upper surface of the force-bearing plate, a second limit plate is fixedly installed on the top of the second support rod, the synchronous insertion rod is installed at the center of the upper surface of the second limit plate, and the outer arc surface of the second limit plate is slidably installed in contact with the inner wall of the inner groove.

[0013] Preferably, the lock core is covered with a protective shell at one end outside the lock core shell, and the special-shaped lock core is covered with a protective sleeve at one end outside the lock core shell, and an anti-slip rubber pad is embedded in the inner wall of the protective sleeve.

[0014] Preferably, a group of arc plates are embedded and installed inside each group of the side grooves, a group of second support springs are fixedly installed on the inner arc surface of each group of the arc plates, and each group of the movable blocks is fixedly installed at the end of the second support springs.

[0015] Preferably, the movable blocks are slidably installed in the side grooves, and a group of special-shaped retaining blocks are fixedly installed at the end of each group of movable blocks, and each group of special-shaped retaining blocks elastically extends into both sides of the keyhole inside the special-shaped lock core.

[0016] Preferably, a slide groove is provided on the outer arc surface of the special-shaped lock core corresponding to the positions of the two groups of positioning holes, and the top end of the synchronous insertion rod is movably pressed against the inner wall of the slide groove for sliding installation.

[0017] Preferably, a group of connecting sleeves are installed inside the middle groove on the corresponding sides of the lock core and the special-shaped lock core, and a connecting groove is formed on the side of each group of connecting sleeves corresponding to the rotating pin shaft.

[0018] Preferably, a group of positioning grooves are respectively opened on both sides of the rotating pin shaft, a group of return springs are fixedly installed inside each group of the positioning grooves, and the outer ends of each group of the return springs are respectively installed inside the corresponding side connecting grooves.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The lock core and the special-shaped lock core are synchronized by two sets of reset springs installed on both sides of the rotating pin, and the rotating pin can be quickly reset after being rotated to unlock, so that the slot opened on the outside of the rotating pin corresponds to the positioning rod, and the first support spring installed in the inner groove applies an upward thrust to the first support rod and the second support rod to ensure that the positioning rod and the synchronization rod are respectively inserted into the rotating pin and the special-shaped lock core to complete the locking. The special-shaped lock core cannot be rotated when the key has not passed through the rotating pin and inserted into the special-shaped lock core to lift up each set of special-shaped resistance blocks, thereby the rotating pin cannot be rotated, thereby improving the overall strength of the lock body and avoiding the problem of unlocking with non-matching keys. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the splitting of the rotating pin installation structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the disassembly of the lock core installation structure of the present invention;

[0024] Figure 4 It is a schematic cross-sectional view of the internal structure of the lock core housing of the present invention;

[0025] Figure 5 This is a schematic diagram of the disassembly of the installation structure of the special-shaped abutment block of the present invention;

[0026] Figure 6 It is a schematic diagram of the disassembly of the reset spring installation structure of the present invention.

[0027] In the figure: 1. lock core shell; 2. middle groove; 3. limit hole; 4. elastic pin structure; 5. inner groove; 6. first supporting spring; 7. force plate; 8. first supporting rod; 9. first limit plate; 10. positioning plug rod; 11. second supporting rod; 12. second limit plate; 13. synchronous plug rod; 14. lock core; 15. insertion hole; 16. protective shell; 17. special-shaped lock core; 18. side groove; 19. arc plate; 20. second supporting spring; 21. movable block; 22. special-shaped block; 23. protective cover; 24. anti-slip rubber pad; 25. positioning hole; 26. slide groove; 27. connecting sleeve; 28. connecting groove; 29. ​​rotating pin; 30. positioning groove; 31. reset spring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] The present invention provides: a high-strength lock with a special-shaped lock core, such as Figure 1-Figure 6 As shown, it includes a lock core housing 1, a middle groove 2 is opened on one side of the lock core housing 1, a group of lock cores 14 and a group of special-shaped lock cores 17 are respectively installed on both sides of the middle groove 2 inside the lock core housing 1, and a rotating pin 29 is rotatably installed inside the middle groove 2. The rotating pin 29 is controlled to rotate by the two groups of lock cores set by the lock core 14 and the special-shaped lock core 17. When any group of lock cores is not completely unlocked, the rotating pin 29 cannot be rotated, thereby improving the use strength of the lock body;

[0030] An inner groove 5 is provided inside the lock core housing 1 at a position corresponding to the special-shaped lock core 17, a force-bearing plate 7 is elastically installed inside the inner groove 5, a group of positioning rods 10 are installed through the middle position of the middle groove 2 corresponding to the upper part of the force-bearing plate 7, and a group of synchronous rods 13 are installed through the upper part of the force-bearing plate 7 at the installation position of the special-shaped lock core 17. The inner groove 5 provided inside the special-shaped lock core 17 accommodates the force-bearing plate 7, and the positioning rods 10 and the synchronous rods 13 installed on the upper part of the force-bearing plate 7 synchronously rotate the pin shaft 29 and the rotation of the special-shaped lock core 17;

[0031] Several groups of movable blocks 21 are symmetrically and elastically installed inside the special-shaped lock core 17. Two groups of positioning holes 25 are symmetrically opened on the outer arc surface of the special-shaped lock core 17 corresponding to the position of the synchronous insertion rod 13. The synchronous insertion rod 13 is elastically inserted into the positioning holes 25. The special-shaped abutment blocks 22 symmetrically arranged on both sides of the special-shaped lock core 17 cooperate with the two sides of the key to increase the difficulty of unlocking the lock body. The positioning holes 25 opened on the surface of the special-shaped lock core 17 can position the synchronous insertion rod 13 to prevent the rotation of the special-shaped lock core 17. After the special-shaped abutment blocks 22 are completely recovered, the special-shaped lock core 17 can be rotated to make the synchronous insertion rod 13 slide into the slide groove 26, so that the positioning insertion rod 10 inserted into the rotating pin shaft 29 is separated from the rotating pin shaft 29, and the rotating pin shaft 29 is controlled;

[0032] A slot is formed on the outer arc surface of the rotating pin shaft 29, and the positioning rod 10 is elastically inserted into the slot.

[0033] Preferably, a plurality of groups of limiting holes 3 are provided inside the lock core shell 1 at positions corresponding to the lock core 14, and a group of elastic pin structures 4 are elastically installed inside each group of limiting holes 3. Insertion holes 15 are provided through the lock core 14 at positions corresponding to each group of elastic pin structures 4. The limiting holes 3 provided inside the lock core shell 1 are used to store the elastic pin structures 4. After the key is inserted into the lock core 14, the pins inside the elastic pin structure 4 can be recovered into the insertion holes 15, thereby ensuring the overall rotation of the lock core 14.

[0034] Furthermore, a plurality of groups of first supporting springs 6 are equidistantly installed inside the inner groove 5, and a force-bearing plate 7 is installed at the top end of each group of first supporting springs 6. A group of first supporting rods 8 are installed on the upper surface of the force-bearing plate 7 corresponding to the middle part of the middle groove 2, and a first limiting plate 9 is installed on the top end of the first supporting rod 8. A positioning rod 10 is installed at the center of the upper surface of the first limiting plate 9. The outer arc surface of the first limiting plate 9 is slidably installed against the inner wall of the inner groove 5. The first supporting springs 6 installed inside the inner groove 5 support the force-bearing plate 7 so that the force-bearing plate 7 always maintains an upward thrust. The use of the synchronous positioning rod 10 and the synchronous rod 13 of the force-bearing plate 7 makes it impossible for the rotating pin 29 to rotate when the special-shaped lock core 17 is rotated to unlock.

[0035] Furthermore, a second support rod 11 is fixedly installed on the upper surface of the force-bearing plate 7 at a position corresponding to the positioning hole 25 on the outer arc surface of the special-shaped lock core 17, and a second limit plate 12 is fixedly installed on the top of the second support rod 11. The synchronous plug rod 13 is installed at the center of the upper surface of the second limit plate 12, and the outer arc surface of the second limit plate 12 is slidably installed in contact with the inner wall of the inner groove 5. The first support rod 8 and the second support rod 11 are provided to adjust the use height of the positioning plug rod 10 and the synchronous plug rod 13. After the special-shaped lock core 17 rotates the synchronous plug rod 13 to slide into the slide groove 26, the synchronous plug rod 13 presses down to press the force-bearing plate 7, thereby driving the positioning plug rod 10 to move downward, so that the positioning plug rod 10 is disengaged from the bottom slot of the rotating pin shaft 29, thereby ensuring the synchronous rotation of the special-shaped lock core 17 and the rotating pin shaft 29, thereby completing the unlocking work.

[0036] It is worth mentioning that the lock core 14 is located at one end outside the lock core shell 1 and is covered with a protective shell 16, and the special-shaped lock core 17 is located at one end outside the lock core shell 1 and is covered with a protective cover 23, and the inner wall of the protective cover 23 is embedded with an anti-slip rubber pad 24. The protective shell 16 installed on the outside of the lock core 14 and the protective cover 23 installed on the outside of the special-shaped lock core 17 both play a protective role to enhance the overall strength of the lock body.

[0037] Specifically, a group of arc plates 19 are embedded and installed inside each group of side grooves 18, a group of second supporting springs 20 are fixedly installed on the inner arc surface of each group of arc plates 19, and each group of movable blocks 21 are fixedly installed at the end of the second supporting springs 20. The arc plates 19 embedded and installed inside the side grooves 18 limit the second supporting springs 20, and the second supporting springs 20 apply an outward thrust to the movable blocks 21 and the special-shaped blocks 22, thereby ensuring a stable matching state with the key.

[0038] In addition, the movable block 21 is slidably installed in the side groove 18, and a group of special-shaped retaining blocks 22 are fixedly installed at the end of each group of movable blocks 21. Each group of special-shaped retaining blocks 22 elastically extends into the two sides of the keyhole inside the special-shaped lock core 17. The special-shaped retaining blocks 22 are of special-shaped structures with non-uniform structures. Only the grooves opened on the side of the corresponding key can correspond to it to complete the unlocking work, which greatly improves the overall usability of the lock body.

[0039] Preferably, a slide groove 26 is provided on the outer arc surface of the special-shaped lock core 17 corresponding to the two groups of positioning holes 25, and the top end of the synchronization rod 13 is movably pressed against the inner wall of the slide groove 26 for sliding installation. The slide groove 26 provided on the outer arc surface of the special-shaped lock core 17 corresponding to the positioning holes 25 can improve the sliding flexibility of the synchronization rod 13, and can quickly ensure that the positioning rod 10 moves downward synchronously, thereby completing the work of unlocking the rotating pin 29.

[0040] Specifically, a group of connecting sleeves 27 are installed inside the middle groove 2 on the corresponding sides of the lock core 14 and the special-shaped lock core 17. A connecting groove 28 is opened on one side of each connecting sleeve 27 corresponding to the rotating pin 29. The connecting sleeve 27 is installed on the inner side of the middle groove 2 and is used for rotating and plugging with the positioning grooves 30 opened on both sides of the rotating pin 29 to ensure the stability of the rotation of the rotating pin 29.

[0041] Furthermore, a group of positioning grooves 30 are respectively opened on both sides of the rotating pin shaft 29, and a group of reset springs 31 are fixedly installed inside each group of positioning grooves 30. The outer ends of each group of reset springs 31 are respectively installed inside the corresponding side connecting grooves 28. The reset springs 31 arranged at the same time can quickly reset the rotating pin shaft 29 after the rotating pin shaft 29 rotates, so that the positioning rod 10 can be stably inserted into the external slot of the corresponding rotating pin shaft 29, thereby better completing the locking of the lock body.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-strength lock with a special-shaped lock core, characterized in that: The invention comprises a lock core housing (1), wherein a middle groove (2) is formed on one side of the lock core housing (1), a group of lock cores (14) and a group of special-shaped lock cores (17) are respectively installed on both sides of the middle groove (2) inside the lock core housing (1), and a rotating pin (29) is rotatably installed inside the middle groove (2); An inner groove (5) is provided inside the lock core housing (1) at a position corresponding to the special-shaped lock core (17), a force-bearing plate (7) is elastically installed inside the inner groove (5), a group of positioning plug rods (10) are installed through the upper part of the force-bearing plate (7) corresponding to the middle position of the middle groove (2), and a group of synchronization plug rods (13) are installed through the upper part of the force-bearing plate (7) corresponding to the installation position of the special-shaped lock core (17); A plurality of movable blocks (21) are symmetrically and elastically installed inside the special-shaped lock core (17); two groups of positioning holes (25) are symmetrically opened on the outer arc surface of the special-shaped lock core (17) corresponding to the position of the synchronous insertion rod (13); and the synchronous insertion rod (13) is elastically inserted into the positioning hole (25); The outer arc surface of the rotating pin shaft (29) is provided with a slot, and the positioning rod (10) is elastically inserted into the slot.

2. A high-strength lock with a special-shaped lock core according to claim 1, characterized in that: A plurality of groups of limiting holes (3) are provided inside the lock core housing (1) at positions corresponding to the lock core (14), a group of elastic pin structures (4) are elastically installed inside each group of limiting holes (3), and insertion holes (15) are provided through the lock core (14) at positions corresponding to each group of elastic pin structures (4).

3. A high-strength lock with a special-shaped lock core according to claim 2, characterized in that: A plurality of groups of first support springs (6) are equidistantly installed inside the inner groove (5); the force-bearing plate (7) is installed on the top of each group of the first support springs (6); a group of first support rods (8) are installed on the upper surface of the force-bearing plate (7) corresponding to the middle of the middle groove (2); a first limiting plate (9) is installed on the top of the first support rod (8); the positioning rod (10) is installed in the center of the upper surface of the first limiting plate (9); and the outer arc surface of the first limiting plate (9) is slidably installed in contact with the inner wall of the inner groove (5).

4. A high-strength lock with a special-shaped lock core according to claim 3, characterized in that: A second support rod (11) is fixedly installed on the upper surface of the force-bearing plate (7) at a position corresponding to the outer arc surface positioning hole (25) of the special-shaped lock core (17); a second limit plate (12) is fixedly installed on the top of the second support rod (11); the synchronous insertion rod (13) is installed at the center of the upper surface of the second limit plate (12), and the outer arc surface of the second limit plate (12) is slidably installed in contact with the inner wall of the inner groove (5).

5. A high-strength lock with a special-shaped lock core according to claim 4, characterized in that: The lock core (14) is located on the outer side of the lock core housing (1) and is covered with a protective housing (16); the special-shaped lock core (17) is located on the outer side of the lock core housing (1) and is covered with a protective sleeve (23); and an anti-slip rubber pad (24) is embedded in the inner wall of the protective sleeve (23).

6. A high-strength lock with a special-shaped lock core according to claim 5, characterized in that: A group of arc plates (19) are embedded and installed inside each group of the side grooves (18), a group of second support springs (20) are fixedly installed on the inner arc surface of each group of the arc plates (19), and each group of the movable blocks (21) are fixedly installed at the end of the second support springs (20).

7. A high-strength lock with a special-shaped lock core according to claim 6, characterized in that: The movable blocks (21) are slidably installed in the side grooves (18), and a group of special-shaped retaining blocks (22) are fixedly installed at the ends of each group of movable blocks (21). Each group of special-shaped retaining blocks (22) elastically extends into the two sides of the key hole inside the special-shaped lock core (17).

8. A high-strength lock with a special-shaped lock core according to claim 7, characterized in that: A slide groove (26) is provided on the outer arc surface of the special-shaped lock core (17) at positions corresponding to the two groups of positioning holes (25), and the top end of the synchronous insertion rod (13) is movably pressed against the inner wall of the slide groove (26) for sliding installation.

9. A high-strength lock with a special-shaped lock core according to claim 8, characterized in that: A group of connecting sleeves (27) are installed inside the middle groove (2) on the corresponding sides of the lock core (14) and the special-shaped lock core (17), and a connecting groove (28) is formed on one side of each group of connecting sleeves (27) corresponding to the rotating pin shaft (29).

10. A high-strength lock with a special-shaped lock core according to claim 9, characterized in that: A group of positioning grooves (30) are respectively provided on both sides of the rotating pin shaft (29), and a group of return springs (31) are fixedly installed inside each group of the positioning grooves (30), and the outer ends of each group of the return springs (31) are respectively installed inside the corresponding side connecting groove (28).

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