A dual-drive electronic lock cylinder

Abstract

This invention discloses a dual-drive electronic lock cylinder, including a lock cylinder body and a lever located on the lock cylinder body that drives the lock to move by rotation. Each end of the lock cylinder body is rotatably connected to a handle. Each handle and the lever are provided with an electronically controlled clutch assembly for controlling whether the handle rotates synchronously with the lever. Each handle is provided with a near-field communication sensor for sensing an information identification card and sending a control signal to the electronically controlled clutch assembly corresponding to the handle.

Description

Technical Field

[0001] This invention relates to an electronic lock cylinder, and more particularly to a dual-drive electronic lock cylinder. Background Technology

[0002] Currently, most common electronic lock cylinders incorporate both mechanical and electronic handles. The mechanical handle contains a traditional purely mechanical unlocking mechanism for unlocking the lock from one end, while the electronic handle typically houses electronic components for unlocking the lock from both the electronic and mechanical handles, either separately or simultaneously. This type of electronic lock presents the following two problems:

[0003] 1. There is usually only one set of electronic control components. Once it fails, it will be impossible to unlock the lock cylinder by controlling it with electrical signals. It can only be unlocked by using a key at the mechanical handle.

[0004] 2. The mechanical handle cannot be unlocked using convenient methods such as a combination lock or access card.

[0005] Therefore, overcoming the aforementioned shortcomings has become an important issue that urgently needs to be addressed by those skilled in the art. Summary of the Invention

[0006] This invention overcomes the shortcomings of the above-mentioned technologies and provides a dual-drive electronic lock cylinder.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A dual-drive electronic lock cylinder includes a lock cylinder body 1 and a lever 2 located on the lock cylinder body 1 that drives the lock to move by rotation. Each end of the lock cylinder body 1 is rotatably connected to a handle 3. Each handle 3 is provided with an electronically controlled clutch assembly 4 between itself and the lever 2 to control whether the handle 3 rotates synchronously with the lever 2. Each handle 3 is provided with a near-field communication sensor 5 for sensing an information identification card and sending a control signal to the electronically controlled clutch assembly 4 corresponding to the handle 3.

[0009] Preferably, the handle 3 includes a rotating part 31 located outside the lock cylinder body 1 and a rotating shaft part 32 inserted into the lock cylinder body 1. The lever 2 is located between the two rotating shaft parts 32 and is coaxially arranged with the two rotating shaft parts 32. The electronically controlled clutch assembly 4 includes a clutch pin 41 that extends from the end of the rotating shaft part 32 to the lever 2. The lever 2 is provided with a pin groove 21 for the clutch pin 41 to be inserted. After the clutch pin 41 is inserted into the pin groove 21, the rotating shaft part 32 and the lever 2 rotate synchronously.

[0010] Preferably, the electronically controlled clutch assembly 4 further includes a battery compartment 42 and a control circuit board 43 disposed in the rotating part 31, and a drive motor 44 disposed in the rotating shaft part 32. The control circuit board 43 is electrically connected to the battery compartment 42, the drive motor 44 and the near-field communication sensor 5 respectively. The drive motor 44 is used to drive the clutch pin 41 to move along the axis of the rotating shaft part 32.

[0011] Preferably, the electronically controlled clutch assembly 4 is further provided with a wireless communication module to receive control signals sent to the electronically controlled clutch assembly 4 by an external identification device through a wireless communication protocol.

[0012] Preferably, the clutch pin 41 includes an active member 411 that is driven by a drive motor 44 and moves along the axis of the rotating shaft 32. The active member 411 is driven to be connected to a driven member 413 by a buffer spring 412. The end of the driven member 413 is provided with a protruding pin 414 for insertion into the pin groove 21.

[0013] Preferably, the rotating part 31 includes a fixing member 311 fixedly connected to the end of the rotating shaft part 32 away from the lock cylinder body 1. A connecting member 312, capable of rotating relative to the rotating shaft part 32, is also sleeved on the section of the rotating part 31 between the fixing member 311 and the lock cylinder body 1. The rotating part 31 also includes a handle 313 that engages with the fixing member 311. The opening of the handle 313 covers the fixing member 311. The outer wall of the connecting member 312 is provided with a second external thread 3121, and the inner wall of the opening of the handle 313 is provided with a thread that engages with the fixing member 311. The second internal thread 3131, which is engaged with the two external threaded portions 3121, facilitates the threaded connection between the handle 313 and the connector 312. The fixing member 311 is provided with a plurality of limiting protrusions 3111. The inner wall surface of the handle 313 is provided with a plurality of limiting grooves 3132 that correspond one-to-one with the limiting protrusions 3111, allowing the limiting protrusions 3111 to be placed therein so that the handle 313 and the fixing member 311 can rotate synchronously. The connector 312 is provided with a boss 3122 at one end facing the lock cylinder body 1, and the boss 3122 is provided with a plurality of grooves 3123.

[0014] Preferably, a sealing ring 314 is fitted on the fixing member 311 between the fixing member 311 and the handle member 313.

[0015] Preferably, a wave spring washer 315 is also fitted on the rotating shaft portion 32 between the connector 312 and the fixing member 311.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] In this case, each handle and lever of the electronic lock cylinder is equipped with an electronically controlled clutch assembly to control the transmission relationship between the handle and lever. Each handle also has a near-field communication sensor capable of sensing an identification card. Therefore, even if one set of electronically controlled clutch assemblies fails, the lock cylinder can still be unlocked through the other set, greatly improving the electronic lock cylinder's resilience. Furthermore, because each handle has a near-field communication sensor, the lock cylinder can be quickly and conveniently unlocked using an identification card from either handle, further enhancing user convenience. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the dual-drive electronic lock cylinder in this case.

[0019] Figure 2 This is one of the explosion diagrams used in this case.

[0020] Figure 3 This is a schematic diagram of the explosion of the clutch pin in this case, in which part of the pin has been cut out.

[0021] Figure 4 This is the second diagram of the explosion involving the handle in this case, where the handle is the one on the outside of the door. Detailed Implementation

[0022] The following examples further illustrate the features and other related characteristics of the present invention to facilitate understanding by those skilled in the art:

[0023] like Figures 1 to 3 As shown, a dual-drive electronic lock cylinder includes a lock cylinder body 1 and a lever 2 located on the lock cylinder body 1 that drives the lock to move by rotation. Both ends of the lock cylinder body 1 are rotatably connected to handles 3. Each handle 3 is provided with an electronically controlled clutch assembly 4 between itself and the lever 2 to control whether the handle 3 rotates synchronously with the lever 2. Each handle 3 is provided with a near-field communication sensor 5 for sensing an information identification card and sending a control signal to the electronically controlled clutch assembly 4 corresponding to the handle 3.

[0024] As described above, each handle 3 and lever 2 of the electronic lock cylinder in this case is equipped with an electronically controlled clutch assembly 4 to control the transmission relationship between the handle 3 and lever 2. Furthermore, each handle 3 is equipped with a near-field communication sensor 5 capable of sensing an information identification card. Thus, even if one set of electronically controlled clutch assemblies 4 fails, the lock cylinder can still be unlocked through the other set, greatly improving the electronic lock cylinder's resilience. Simultaneously, since each handle 3 is equipped with a near-field communication sensor 5, the lock cylinder can be quickly and conveniently unlocked via an information identification card from either handle 3, further enhancing user convenience during unlocking.

[0025] like Figures 1 to 3 As shown, preferably, the handle 3 includes a rotating part 31 located outside the lock cylinder body 1 and a rotating shaft part 32 inserted into the lock cylinder body 1. The lever 2 is located between the two rotating shaft parts 32 and is coaxially arranged with the two rotating shaft parts 32. The electronically controlled clutch assembly 4 includes a clutch pin 41 that extends from the end of the rotating shaft part 32 to the lever 2. The lever 2 is provided with a pin groove 21 for the clutch pin 41 to be inserted. After the clutch pin 41 is inserted into the pin groove 21, the rotating shaft part 32 and the lever 2 rotate synchronously. In this way, by controlling whether the clutch pin 41 is extended or not, the transmission relationship between the rotating shaft part 32 and the lever 2, that is, the transmission relationship between the handle 3 and the lever 2, can be controlled.

[0026] like Figures 1 to 3 As shown, preferably, the electronically controlled clutch assembly 4 further includes a battery compartment 42 and a control circuit board 43 disposed in the rotating part 31, and a drive motor 44 disposed in the rotating shaft part 32. The control circuit board 43 is electrically connected to the battery compartment 42, the drive motor 44, and the near-field communication sensor 5. The drive motor 44 is used to drive the clutch pin 41 to move along the axis of the rotating shaft part 32. In this way, the control circuit board 43, the drive motor 44, and the near-field communication sensor 5 can be powered by installing a battery in the battery compartment 42 of the rotating part 31. When the control circuit board 43 receives the unlocking control signal, it can control the drive motor 44 to move and release the clutch pin 41, so that the rotating shaft part 32 and the lever 2 can rotate synchronously.

[0027] like Figures 1 to 3 As shown, preferably, the electronic clutch assembly 4 is further provided with a wireless communication module to receive control signals sent to the electronic clutch assembly 4 by an external identification device through a wireless communication protocol. In this way, by receiving the unlock signal sent to the electronic clutch assembly 4 by the external identification device, the actions of each electronic clutch assembly 4 can be remotely controlled to unlock the electronic lock cylinder.

[0028] like Figures 1 to 3 As shown, preferably, the clutch pin 41 includes an active member 411 that moves along the axis of the rotating shaft 32 driven by the drive motor 44. The active member 411 is driven to connect to a driven member 413 via a buffer spring 412. The end of the driven member 413 is provided with a protruding pin 414 for insertion into the pin groove 21. Thus, when the drive motor 44 drives the clutch pin 41 to move but the protruding pin 414 is not yet aligned with the pin groove 21, the active member 411 can compress the buffer spring 412 as a buffer to prevent the driven member 413 from forcibly knocking out the protruding pin 414 and damaging the parts.

[0029] like Figures 2 to 3As shown, preferably, the drive motor 44 is a rotary motor, the output shaft of the drive motor 44 is provided with a first external thread 441, the driving member 411 is provided with a first internal thread 4111 that mates with the first external thread 441, the buffer spring 412 is a double-layer spring, one end of the inner spring of the buffer spring 412 is fixedly connected to the driving member 411, the same end of the outer spring is fixedly connected to the driven member 413, and the remaining ends of the inner and outer springs are fixedly connected to each other.

[0030] Preferably, the drive motor 44 can also be a linear motor, the driving member 411 is fixedly connected to the output end of the linear motor, and the buffer spring 412 is a compression spring with its two ends fixed to the driving member 411 and the driven member 413 respectively.

[0031] like Figures 1 to 4 As shown, for the handle 3 located on the outer side of the door, to improve safety and prevent forced disassembly, preferably, the rotating part 31 includes a fixing member 311 fixedly connected to the end of the rotating shaft 32 away from the lock cylinder body 1. A connecting member 312, capable of rotating relative to the rotating shaft 32, is also fitted onto the section of the rotating part 31 between the fixing member 311 and the lock cylinder body 1. The rotating part 31 also includes a handle 313 that engages with the fixing member 311. The handle 313's opening covers the fixing member 311. The outer wall of the connecting member 312 is provided with a second external thread 3121. The inner wall of the opening of part 313 is provided with a second internal thread 3131 that mates with the second external thread 3121 to facilitate threaded connection between the handle part 313 and the connecting part 312. The fixing part 311 is provided with a plurality of limiting protrusions 3111. The inner wall surface of the handle part 313 is provided with a plurality of limiting grooves 3132 that correspond one-to-one with the limiting protrusions 3111 and are placed therein so that the limiting protrusions 3111 can rotate synchronously with the handle part 313 and the fixing part 311. The connecting part 312 is provided with a boss 3122 at one end facing the lock cylinder body 1. The boss 3122 is provided with a plurality of grooves 3123.

[0032] As described above, the fixing member 311 is fixedly connected to the rotating shaft 32, and the connecting member 312 is sleeved on the rotating shaft 32 between the fixing member 311 and the lock cylinder body 1. The handle 313 is then threadedly connected to the connecting member 312. Since the connecting member 312 can rotate relative to the rotating shaft 32, the connecting member 312 will also rotate synchronously with the handle 313 when the handle 313 is rotated. Under normal use, the handle 313 cannot be separated from the connecting member 312, thus preventing the handle 3 from being violently disassembled in the external environment. At the same time, the end of the connecting member 312 is provided with a limiting protrusion 3111 and a limiting groove 3132. Thus, when it is necessary to disassemble or install the handle 3, a special disassembly tool is used to form a concave-convex fit with the limiting protrusion 3111 and the limiting groove 3132. The operator can hold the special tool in one hand and rotate the handle 313 with the other hand to make the handle 313 and the connecting member 312 rotate relative to each other to achieve disassembly or installation. This ensures that the handle 3 is highly secure in the external environment, while also not affecting disassembly and assembly.

[0033] like Figure 4 As shown, preferably, a sealing ring 314 is provided on the fixing member 311 between the fixing member 311 and the handle member 313, so as to prevent the handle 3 in the external environment from being invaded by water vapor and dust.

[0034] like Figure 4 As shown, preferably, a wave spring washer 315 is also sleeved on the rotating shaft 32 between the connector 312 and the fixing member 311, so as to ensure that the connector 312 and the fixing member 311 can fit tightly together and ensure that they can rotate synchronously during normal use.

[0035] As stated above, this case protects a dual-drive electronic lock cylinder, and all technical solutions that are the same as or similar to this case should be considered to fall within the scope of protection of this case.

Claims

1. A dual-drive electronic lock cylinder, characterized in that... The lock includes a lock cylinder body (1) and a lever (2) located on the lock cylinder body (1) and driven by rotation to operate the lock. Both ends of the lock cylinder body (1) are rotatably connected to handles (3). Each handle (3) and the lever (2) are provided with an electronically controlled clutch assembly (4) for controlling whether the handle (3) rotates synchronously with the lever (2). Each handle (3) is provided with a near-field communication sensor (5) for sensing an information identification card and sending a control signal to the electronically controlled clutch assembly (4) corresponding to the handle (3). The handle (3) includes a rotating part (31) located outside the lock cylinder body (1) and a rotating shaft part (32) inserted into the lock cylinder body (1). The paddle (2) is located between the two rotating shaft parts (32) and is coaxially arranged with the two rotating shaft parts (32). The electronically controlled clutch assembly (4) includes a clutch pin (41) that is pushed out from the end of the rotating shaft part (32) to the paddle (2). The paddle (2) is provided with a pin groove (21) for the clutch pin (41) to be inserted. After the clutch pin (41) is inserted into the pin groove (21), the rotating shaft part (32) and the paddle (2) rotate synchronously. The rotating part (31) includes a fixing member (311) fixedly connected to the end of the rotating shaft (32) away from the lock cylinder body (1). A connecting member (312) that can rotate relative to the rotating shaft (32) is also sleeved on the section of the rotating part (31) between the fixing member (311) and the lock cylinder body (1). The rotating part (31) also includes a handle (313) that is connected to the fixing member (311). The opening of the handle (313) covers the fixing member (311). The outer wall of the connecting member (312) is provided with a second external thread (3121). The inner wall of the opening of the handle (313) is provided with a second external thread (3121). The second internal thread (3131) that engages with the threaded part (3121) facilitates the threaded connection between the handle (313) and the connector (312). The fixing member (311) is provided with a plurality of limiting protrusions (3111). The inner wall surface of the handle (313) is provided with a plurality of limiting grooves (3132) that correspond one-to-one with the limiting protrusions (3111) and allow the limiting protrusions (3111) to be placed therein so that the handle (313) and the fixing member (311) can rotate synchronously. The connector (312) is provided with a boss (3122) at one end facing the lock cylinder body (1). The boss (3122) is provided with a plurality of grooves (3123).

2. The dual-drive electronic lock cylinder according to claim 1, characterized in that... The electronically controlled clutch assembly (4) also includes a battery compartment (42) and a control circuit board (43) disposed in the rotating part (31), and a drive motor (44) disposed in the rotating shaft part (32). The control circuit board (43) is electrically connected to the battery compartment (42), the drive motor (44), and the near-field communication sensor (5), respectively. The drive motor (44) is used to drive the clutch pin (41) to move along the axis of the rotating shaft part (32).

3. A dual-drive electronic lock cylinder according to any one of claims 1 to 2, characterized in that... The electronically controlled clutch assembly (4) is also equipped with a wireless communication module to receive control signals sent to the electronically controlled clutch assembly (4) by external identification devices through a wireless communication protocol.

4. A dual-drive electronic lock cylinder according to claim 2, characterized in that... The clutch pin (41) includes an active member (411) that moves along the axis of the rotating shaft (32) driven by a drive motor (44). The active member (411) is connected to a driven member (413) via a buffer spring (412). The end of the driven member (413) is provided with a protruding pin (414) for insertion into the pin groove (21).

5. A dual-drive electronic lock cylinder according to claim 1, characterized in that... A sealing ring (314) is fitted on the fixing member (311) between the fixing member (311) and the handle member (313).

6. A dual-drive electronic lock cylinder according to claim 1, characterized in that... A wave spring washer (315) is also fitted on the pivot (32) between the connector (312) and the fixing member (311).

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