A lock core

Abstract

The present invention provides a lock core, which includes a lock core housing, and a first rotating member, a second rotating member, and a third rotating member disposed within the lock core housing. The lower end of the first rotating member is in interference fit with the second rotating member; the second rotating member is in interference fit with the third rotating member; a pin shaft is inserted on the inner side wall of the first rotating member, and is engaged with a key through the pin shaft, so as to drive the first rotating member to rotate; a circuit board is disposed within the second rotating member, and two thimbles for cooperating with the key are also welded on the circuit board. The circuit board is also electrically connected to a rotating motor, and a swing arm is connected to the lower end of the rotating motor. The present invention authorizes through an electronic key, so as to control the rotating motor to control the swing arm to rotate, and then the second rotating member can be rotated, further improving the security; the present invention drives the second rotating member to rotate through the first rotating member, and drives the third rotating member to rotate through the second rotating member, and through multiple linkages, the security of the lock is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of locks, and in particular to a lock core. Background Art

[0002] The lock core is the most important part that determines the anti-theft performance of an anti-theft lock. Therefore, people continuously improve the structure of the lock core to minimize the probability of being opened technically or destructively by thieves. The most common method is to increase the number of marbles in the lock core to increase the difficulty of technical or destructive opening.

[0003] Most current lock cores use a single horizontal piece to lock 5 to 6 marbles. When the lock core uses multiple marbles (7 or more), two independent horizontal pieces are used to lock their respective corresponding marbles. Since these two horizontal pieces are independent, thieves can still use a method of breaking them one by one in stages to release the lock on the lock cylinder by these two horizontal pieces to achieve the purpose of unlocking and stealing; moreover, on the other hand, the two horizontal pieces have a sense of returning after rotating 180 degrees. People think that it is in place and the key can be pulled out, but in fact the lock is still in the open state and the key cannot be pulled out, which causes certain inconvenience to users. Therefore, the anti-theft performance of the current double-horizontal-piece lock core is still relatively low, not very convenient to use, and still needs to be further improved. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a lock core with high security.

[0005] The technical solution of the present invention is: a lock core, the lock core includes a lock core housing, and a first rotating member, a second rotating member, a third rotating member, a rotating motor, and a swing arm disposed in the lock core housing. The lower end of the first rotating member is clamped with the second rotating member, and the first rotating member can drive the second rotating member to rotate during the rotation process;

[0006] The lower end of the second rotating member is clamped with the third rotating member, and the second rotating member can drive the third rotating member to rotate during the rotation process;

[0007] A pin shaft is inserted on the inner side wall of the first rotating member, and the pin shaft drives the first rotating member to rotate by cooperating with the key;

[0008] A circuit board is disposed in the second rotating member, the circuit board is electrically connected to the rotating motor, and the rotating motor passes through the second rotating member downward and is connected to the swing arm at the lower end of the second rotating member;

[0009] A stopper for cooperating with the swing arm is disposed on the inner side of the third rotating member, and a linkage assembly is disposed on the third rotating member;

[0010] Two ejector pins are also soldered on the circuit board, and the two ejector pins pass upward through the first rotating member and partially expose the first rotating member to contact the key.

[0011] Preferably, the first rotating member is of a circular structure, and a slot for inserting the key is also provided on the first rotating member. A boss is further provided in the slot. The ejector pins pass upward through the boss and contact the key. The two ejector pins serve as positive and negative electrodes respectively. When the key contacts the two ejector pins, the key powers on the circuit board. After the circuit board is powered on, it controls the rotation motor to act, thereby controlling the swing arm to rotate, so that the swing arm moves away from the stopper of the third rotating member, avoiding the stopper blocking the swing arm.

[0012] Preferably, two card slots for cooperating with the second rotating member are symmetrically provided at the lower end of the first rotating member.

[0013] Preferably, the second rotating member is of a disc-shaped structure, and two convex blocks for cooperating with the card slots of the first rotating member are provided at the upper end of the second rotating member. The convex blocks are clamped in the corresponding card slots.

[0014] Preferably, a stepped arc-shaped rotating cut groove for cooperating with the third rotating member is provided on the outer side wall of the second rotating member, and a corresponding stepped arc-shaped rotating cut groove is also provided on the third rotating member.

[0015] Preferably, the swing arm is arranged in the groove at the lower end of the second rotating member, and notches for allowing the swing arm to swing are provided on the second rotating member at both ends of the groove.

[0016] Preferably, a vertical groove is also provided on the inner side wall of the lock core housing in the vertical direction. A limiting shaft is arranged in the vertical groove. A U-shaped groove for accommodating the limiting shaft in cooperation is provided on the side wall of the third rotating member. An arc-shaped groove for cooperating with the limiting shaft is provided on the outer side wall of the second rotating member. In the initial state, the limiting shaft is located in the vertical groove and the U-shaped groove of the lock core housing. At this time, due to the action of the limiting shaft, the third rotating member is limited on the lock core housing and the third rotating member cannot rotate. During the rotation of the second rotating member, when the second rotating member rotates to make the arc-shaped groove align with the vertical groove and the U-shaped groove, the limiting shaft moves into the arc-shaped groove, so that the third rotating member is driven to rotate during the rotation of the second rotating member.

[0017] Preferably, a connecting seat is provided at the lower end of the third rotating member, and the connecting seat cooperates with the linkage assembly.

[0018] Preferably, the linkage assembly is a bolt or a moving housing.

[0019] Preferably, the inserting tongue is provided with an arcuate strip groove, and the arcuate strip groove is matched and connected with a connecting seat provided at the lower end of the third rotating member. When the third rotating member rotates, the connecting seat contacts with different positions of the strip groove, thereby driving the inserting tongue to extend and retract.

[0020] Preferably, the movable housing is engaged with the connecting seat, the movable housing cover is arranged on the outside of the third rotating member, and the movable housing can rotate with the third rotating member, and the movable housing can also move on the connecting seat, and the third rotating member and the movable housing are both elliptical structures, and in actual use, the movable housing cooperates with the insertion rod through the ball. Different positions of the elliptical structure movable housing contact with the ball, so as to control the ball to move in the corresponding channel, and then control the ball to support the arc groove of the insertion rod or to stay away from the arc groove of the insertion rod.

[0021] Preferably, the lower end of the elliptical structure moving shell is provided with a slide groove for cooperating with the connecting seat, the connecting seat is arranged in the slide groove, and the connecting seat can move in the slide groove. During the rotation of the third rotating member, the connecting seat is driven to rotate, thereby driving the moving shell to rotate. Since the moving shell is an elliptical structure, when the smaller diameter side of the elliptical structure moving shell contacts the ball, the ball moves toward the moving shell, thereby causing the ball to disengage from the arc-shaped groove of the insertion rod, so that the insertion rod can be plugged in and out.

[0022] Preferably, the circuit board is also electrically connected to a first magnetic sensor, and the first magnetic sensor is used to accurately feed back the plugging and unplugging information of the smart key.

[0023] The beneficial effects of the present invention are:

[0024] 1. The present invention has a simple structure and strong practicality. The present invention controls the rotating motor to control the swing arm to rotate through the electronic key authorization, and then the second rotating member can be rotated, which further improves safety;

[0025] 2. The present invention drives the second rotating member to rotate through the first rotating member, and drives the third rotating member to rotate through the second rotating member, thereby increasing the safety of the lock through multiple linkages;

[0026] 3. The present invention links the housing and the third rotating member through a limiting shaft. Only when the second rotating member rotates to a corresponding position and the limiting shaft enters a corresponding arc groove can the third rotating member rotate, thereby increasing safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a first embodiment of the present invention;

[0028] Figure 2 Structural schematic diagram of the second embodiment of the present invention;

[0029] Figure 3 Structural schematic diagram of the lock core of the present invention;

[0030] Figure 4 Structural schematic diagram of the first rotating member of the present invention;

[0031] Figure 5 Structural schematic diagram of the present invention after hiding the first rotating member;

[0032] Figure 6 Structural schematic diagram of the second rotating member of the present invention;

[0033] Figure 7 Structural schematic diagram of the bottom surface of the second rotating member of the present invention;

[0034] Figure 8 Structural schematic diagram of the present invention after hiding the second rotating member;

[0035] Figure 9 Bottom surface structure schematic diagram of the third rotating member of the present invention Figure One ;

[0036] Figure 10 Bottom surface structure schematic diagram of the third rotating member of the present invention Figure Two ;

[0037] Figure 11 Structural schematic diagram of the bolt of the present invention;

[0038] Figure 12 Structural schematic diagram of the moving housing of the present invention;

[0039] In the figure, 3 - bolt, 4 - moving housing;

[0040] 20 - lock core housing, 21 - first rotating member, 22 - second rotating member, 23 - third rotating member, 24 - rotating motor, 25 - swing arm, 26 - circuit board, 27 - ejector pin, 28 - pin shaft, 29 - limit shaft,

[0041] 211 - slot, 212 - boss, 213 - card slot;

[0042] 221 - bump, 222 - arc-shaped rotating cut groove, 223 - arc-shaped groove, 224 - groove;

[0043] 231 - U-shaped groove, 232 - stop block, 233 - connecting seat;

[0044] 31 - strip-shaped groove;

[0045] 41 - sliding groove. Detailed implementation method

[0046] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings:

[0047] As Figures 1 - 3 shown, this embodiment provides a lock core, and the lock core includes a lock core housing 20, a first rotating member 21, a second rotating member 22, a third rotating member 23, a rotating motor 24, and a swing arm 25 disposed within the lock core housing 20. The lower end of the first rotating member 21 is engaged with the second rotating member 22, and the first rotating member 21 can drive the second rotating member 22 to rotate during the rotation process. The lower end of the second rotating member 21 is engaged with the third rotating member 23, and the second rotating member 22 can drive the third rotating member 23 to rotate during the rotation process.

[0048] A pin 28 is inserted on the inner side wall of the first rotating member 21, and the first rotating member 21 is driven to rotate by cooperating with the key through the pin 28.

[0049] As Figure 5 shown, a circuit board 26 is disposed within the second rotating member 22, and two ejector pins 27 are also welded on the circuit board 26. The two ejector pins 27 pass upward through the first rotating member 21 and partially expose the first rotating member 21 to contact the key.

[0050] The circuit board 26 is electrically connected to the rotating motor 24, and the rotating motor 24 passes downward through the second rotating member 22 and is connected to the swing arm 25 at the lower end of the second rotating member 22.

[0051] A stopper 232 for cooperating with the swing arm 25 is disposed inside the third rotating member 23. Refer to Figure 8 and 9 shown, and a linkage assembly is disposed at the lower end of the third rotating member 23; in the first embodiment, the linkage assembly is a moving housing 4, as Figure 1 shown, in another embodiment, the linkage assembly is a bolt 3, refer to Figure 2 .

[0052] Preferably in this embodiment, as Figure 4As shown, the first rotating member 21 has a circular structure, and a slot 211 for inserting a key is further provided on the first rotating member 21. A boss 212 is further provided in the slot 211. The ejector pin 27 passes upward through the boss 212 and contacts the key. In this embodiment, the two ejector pins 27 serve as positive and negative electrodes respectively and are welded to the circuit board 26. When the key contacts the two ejector pins 27, the key supplies power to the circuit board 26. After the circuit board 26 is powered on, it controls the rotation motor 24 to act, thereby controlling the swing arm 25 to rotate, so that the swing arm 25 moves away from the stopper 232 on the inner side of the third rotating member 23, avoiding the stopper 232 blocking the swing arm 25, so that the second rotating member 22 can rotate under the action of the first rotating member 21.

[0053] Preferably in this embodiment, two card slots 213 for cooperating with the second rotating member 22 are symmetrically provided at the lower end of the first rotating member 21.

[0054] Preferably in this embodiment, as Figure 6 and 7 shown, the second rotating member 22 has a disc-shaped structure, and two protrusions 221 for cooperating with the card slots 213 of the first rotating member 21 are further provided at the upper end of the second rotating member 22. The protrusions 221 are clamped in the corresponding card slots 213.

[0055] Preferably in this embodiment, as Figure 6 and 7 shown, a stepped arc-shaped rotating cut groove 222 for cooperating with the third rotating member 23 is further provided on the outer side wall of the second rotating member 22, and a corresponding stepped arc-shaped rotating cut groove 222 is also provided on the third rotating member 23.

[0056] Preferably in this embodiment, the swing arm 25 is arranged in a groove 224 at the lower end of the second rotating member 22, and notches for allowing the swing arm 25 to swing are further provided on the second rotating member 22 at both ends of the groove 224.

[0057] As a preferred embodiment of the present invention, the inner side wall of the lock core housing 20 is provided with a vertical groove in the vertical direction, a limiting shaft 29 is arranged in the vertical groove, and a U-shaped groove 231 for accommodating the limiting shaft 29 is provided on the side wall of the third rotating member 23, and an arc groove 223 for cooperating with the limiting shaft 29 is provided on the outer side wall of the second rotating member 22. In the initial state, the limiting shaft 29 is located in the vertical groove and the U-shaped groove 231 of the lock core housing, and the third rotating member 23 is limited on the lock core housing due to the action of the limiting shaft 29. At this time, the third rotating member 23 cannot rotate. In the process of the second rotating member 22 rotating, when the second rotating member 22 rotates to the arc groove 223 and the vertical groove and the U-shaped groove 231 are directly opposite, the limiting shaft 29 moves into the arc groove 223, so that the third rotating member 23 is driven to rotate during the rotation of the second rotating member 22.

[0058] As a preferred embodiment of the present invention, a connecting seat 233 is provided at the lower end of the third rotating member 23, and the connecting seat 233 cooperates with the linkage assembly.

[0059] As preferred in this embodiment, Figures 10 - 11 As shown, the insert tongue 3 is provided with an arcuate strip groove 31, and the arcuate strip groove 31 is matched and connected with a connecting seat 233 provided at the lower end of the third rotating member 23. When the third rotating member 23 rotates, the connecting seat 233 contacts with different positions of the strip groove 31, thereby driving the insert tongue 3 to extend and retract.

[0060] As preferred in this embodiment, Figure 12 The movable housing 4 is engaged with the connection seat 233, and the movable housing 4 is covered on the outside of the third rotating member 23, and the movable housing 4 can rotate with the third rotating member 23, and the movable housing 4 can also move on the connection seat 233, and the third rotating member 23 and the movable housing 4 are both elliptical structures. In actual use, the movable housing 4 cooperates with the insertion rod through the ball. Different positions of the elliptical movable housing 4 contact with the ball, so as to control the ball to move in the corresponding channel, and then control the ball to support the arc groove 224 of the insertion rod or to stay away from the arc groove 224 of the insertion rod.

[0061] Preferably, a sliding groove 41 for cooperating with the connecting seat 233 is provided at the lower end of the moving housing 4 with an elliptical structure. The connecting seat 233 is disposed in the sliding groove 41 and can move within the sliding groove 41. During the rotation of the third rotating member 23, the connecting seat 233 is driven to rotate, thereby driving the moving housing 4 to rotate. Since the moving housing 4 has an elliptical structure, when the smaller-diameter side of the elliptical moving housing 4 contacts the ball, the ball moves towards the moving housing 4, so that the ball disengages from the arc-shaped groove 224 of the plug rod, enabling the plug rod to be inserted and removed.

[0062] Preferably, a first magnetic induction sensor is also electrically connected to the circuit board, and the insertion and removal information of the intelligent key is accurately fed back through the first magnetic induction sensor.

[0063] The above embodiments and descriptions in the specification only illustrate the principles and the best embodiments of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A lock core, characterized in that, The described lock core includes a lock core housing (20), a first rotating member (21), a second rotating member (22), a third rotating member (23), a rotating motor (24), and a swing arm (25) disposed within the lock core housing (20). The lower end of the first rotating member (21) is snap-connected to the second rotating member (22), and the first rotating member (21) can drive the second rotating member (22) to rotate during the rotation process; The lower end of the second rotating member (22) is snap-connected to the third rotating member (23), and the second rotating member (22) can drive the third rotating member (23) to rotate during the rotation process; A pin shaft (28) is inserted on the inner side wall of the first rotating member (21), and the pin shaft (28) drives the first rotating member (21) to rotate by cooperating with the key; A circuit board (26) is disposed within the second rotating member (22), and two ejector pins (27) are also welded on the circuit board (26). The two ejector pins (27) pass upward through the first rotating member (21) and partially expose the first rotating member (21) to contact the key; The circuit board (26) is also electrically connected to the rotating motor (24), and the rotating motor (24) passes downward through the second rotating member (22) and is connected to the swing arm (25) at the lower end of the second rotating member (22); A stopper (232) for cooperating with the swing arm (25) is disposed inside the third rotating member (23), and a linkage assembly is disposed at the lower end of the third rotating member (23); The linkage assembly is a bolt (3) or a moving housing (4), and the rotation of the third rotating member (23) drives the bolt (3) or the moving housing (4) to act; The first rotating member (21) is of a circular structure, and a slot (211) for inserting the key is further formed on the first rotating member (21). A boss (212) is further disposed within the slot (211), and the ejector pin (27) passes upward through the boss (212) to contact the key; The two ejector pins (27) serve as positive and negative electrodes respectively and are welded on the circuit board (26); when the key contacts the two ejector pins (27), the key powers on the circuit board (26). After the circuit board (26) is powered on, it controls the rotating motor (24) to act, thereby controlling the swing arm (25) to rotate, so that the swing arm (25) moves away from the stopper (232) inside the third rotating member (23), avoiding the stopper (232) blocking the swing arm (25), and thus enabling the second rotating member (22) to rotate under the action of the first rotating member (21); two card slots (213) for cooperating with the second rotating member (22) are symmetrically disposed at the lower end of the first rotating member (21); A vertical groove is further formed on the inner side wall of the lock core housing (20) along the vertical direction, a limiting shaft (29) is movably disposed within the vertical groove, and the third rotating member A U-shaped groove (231) for accommodating a limiting shaft (29) is further formed in the side wall. An arc-shaped groove (223) for cooperating with the limiting shaft (29) is formed in the outer side wall of the second rotating member (22). In the initial state, the limiting shaft (29) is located in the vertical groove and the U-shaped groove (231) of the lock core housing. Due to the action of the limiting shaft (29), the third rotating member (23) is limited on the lock core housing. At this time, the third rotating member (23) cannot rotate. During the rotation of the second rotating member (22), when the second rotating member (22) rotates to a position where the arc-shaped groove (223) is aligned with the vertical groove and the U-shaped groove (231), the limiting shaft (29) moves into the arc-shaped groove (223), so that the third rotating member (23) is driven to rotate during the rotation of the second rotating member (22). The second rotating member (22) is of a disc-shaped structure, and two protrusions (221) for cooperating with the clamping grooves (213) of the first rotating member (21) are further provided at the upper end of the second rotating member (22). The protrusions (221) are in interference connection with the clamping grooves (213). A stepped arc-shaped rotating cutting groove (222) for cooperating with the third rotating member (23) is further provided on the outer side wall of the second rotating member (22), and a corresponding stepped arc-shaped rotating cutting groove (222) is also provided on the third rotating member (23).

2. The lock core according to claim 1, characterized in that: A groove (224) for accommodating the swing arm (25) is further provided at the lower end of the second rotating member (22), and notches for allowing the swing arm (25) to swing are further provided on the second rotating member (22) at both ends of the groove (224).

3. A lock core according to claim 1, characterized in that: A connecting seat (233) is provided at the lower end of the third rotating member (23), and the connecting seat (233) cooperates with the bolt (3) or the moving housing (4).

4. A lock core according to claim 3, wherein: An arc-shaped strip groove (31) is provided on the bolt (3), and the arc-shaped strip groove (31) is in cooperation connection with the connecting seat (233) provided at the lower end of the third rotating member (23). During the rotation of the third rotating member (23), the connecting seat (233) drives the bolt (3) to expand and contract by contacting different positions of the strip groove (31).

5. A lock core according to claim 4, characterized in that: The moving housing (4) is movably clamped with the connecting seat (233), and the moving housing (4) covers the outside of the third rotating member (23). The moving housing (4) can rotate with the third rotating member (23), and the moving housing (4) can also move on the connecting seat (233). Both the third rotating member (23) and the moving housing (4) are of an oval structure.

6. The lock core according to claim 5, characterized in that: A sliding groove (41) for cooperating with a connecting seat (233) is provided at the lower end of the moving housing (4) having an oval structure. The connecting seat (233) is arranged in the sliding groove (41), and the connecting seat (233) can move within the sliding groove (41). During the rotation of the third rotating member (23), the connecting seat (233) is driven to rotate, thereby driving the moving housing (4) to rotate. Since the moving housing (4) has an oval structure, when the side with the smaller diameter of the oval-shaped moving housing (4) contacts the ball, the ball moves towards the moving housing (4), so that the ball disengages from the arc-shaped groove (224) of the plug rod, enabling the plug rod to be inserted and removed.

Images