Emergency unlocking structure of intelligent lock

Abstract

The emergency unlocking structure of the intelligent lock comprises a handle structure, a free sleeve, a clutch mechanism, a torsion spring, a lock head and a panel, the clutch mechanism comprises an electric push rod, a push block and a clutch pin, the handle structure, the electric push rod, the torsion spring and the lock head are respectively installed on the panel, the free sleeve is arranged on the handle structure in a rotating mode, and the clutch pin is arranged on the free sleeve. The electric push rod can drive the push block to move, the clutch pin can abut against the push block and can penetrate through the free sleeve along with movement of the push block and stretch into the handle structure, the torsion spring is provided with a first arm and a second arm, the first arm is connected with the lock head, and the second arm can be connected with the push block. The emergency unlocking device can be used for emergency unlocking of the intelligent lock, when the handle structure deviates and a user uses a key to apply force to drive the lock head to act, the torsion spring can be stressed to deform to avoid damage to the clutch mechanism, after force application is finished, the torsion spring can recover by means of elasticity, and when the handle structure resets, the torsion spring can reset. The intelligent lock can still be unlocked through the intelligent lock unlocking device.

Description

Technical Field

[0001] The utility model relates to the field of smart lock design, in particular to an emergency unlocking structure of a smart lock. Background Art

[0002] Common smart locks usually include an electric device, a clutch device, a handle structure and a free sleeve for connecting to the lock cylinder. The electric device can be connected to intelligent devices such as sensors or identification devices, so that it can drive the electric device to switch the clutch device through intelligent control such as fingerprint, password or face recognition, so that the clutch device connects or separates the handle structure and the free sleeve to realize the opening and closing of the lock.

[0003] If the lock is unlocked only by intelligently controlling the electric device, once the intelligent device or the electric device is damaged and cannot work normally, it cannot effectively switch the clutch device, and the user cannot unlock the lock normally.

[0004] In order to avoid the above problems, some smart locks are now equipped with an emergency mechanical unlocking structure, which can directly drive the clutch device to open the smart lock through the key. However, the common emergency unlocking structure has low fault tolerance. Sometimes the handle structure may be subjected to force due to long-term use, causing the handle connection structure to deviate from its original position. At this time, if the user directly applies force with the key to open the smart lock, the clutch device cannot effectively cooperate with the handle structure position, and the applied force may easily cause damage to the clutch device and other structures. Utility Model Content

[0005] The purpose of the present utility model is to provide an intelligent lock emergency unlocking structure that can solve one or more of the above problems.

[0006] According to one aspect of the present invention, a smart lock emergency unlocking structure is provided, comprising a handle structure, a free sleeve, a clutch mechanism, a torsion spring, a lock head and a panel.

[0007] The clutch mechanism includes an electric push rod, a push block and a clutch pin. The handle structure, the electric push rod, the torsion spring and the lock are respectively installed on the panel. The free sleeve is rotatably arranged on the handle structure. The electric push rod can drive the push block to move.

[0008] The clutch pin can abut against the push block and can pass through the free sleeve and extend into the handle structure as the push block moves.

[0009] The torsion spring is provided with a first arm and a second arm, wherein the first arm is connected to the lock head, and the second arm can be connected to the push block.

[0010] The beneficial effects of the present invention are as follows: the present invention can be used in a smart lock, the free sleeve can be connected to the lock cylinder, and when the smart lock needs to be opened in an emergency, the user can use the key to drive the lock cylinder to move, so that the first arm of the torsion spring moves, and the second arm of the torsion spring correspondingly drives the push block to move, so that the clutch pin fixes the free sleeve and the handle structure. At this time, the user can use the handle structure to rotate the free sleeve to open the lock cylinder. When the handle structure is misaligned and the clutch pin cannot effectively connect the free sleeve and the handle structure, that is, the push block cannot move, when the user uses the key to apply force to drive the lock cylinder, the torsion spring itself can be deformed by force to avoid damage to the clutch mechanism, and after the force is applied, the torsion spring can recover by elasticity. When the handle structure is reset, the smart lock can still be opened by the present invention. Therefore, the present invention has high fault tolerance and reliability.

[0011] In some embodiments, the free sleeve is provided with a protrusion, a cavity is provided within the protrusion, a spring is provided within the cavity, a guide hole is provided at the bottom of the cavity, and a protrusion is provided on the clutch pin. One end of the clutch pin can pass through the cavity and the guide hole, and the protrusion is located within the cavity and abuts against the spring. The provision of the spring facilitates automatic reset of the clutch pin when no thrust is applied.

[0012] In some embodiments, the handle structure includes a handle, a connecting shaft, and a fixing sleeve, wherein the fixing sleeve is connected to the panel, the fixing sleeve is mounted on the connecting shaft, and the connecting shaft is connected to the handle. Thus, rotation of the handle can drive the connecting shaft to rotate together.

[0013] In some embodiments, the free sleeve is mounted on a coupling shaft, and the coupling shaft is provided with a guide groove, which is opposite to and communicates with the guide hole. The guide groove and the guide hole are opposite to and communicate with each other, so that one end of the clutch pin can effectively pass through the guide hole and enter the guide groove when needed.

[0014] In some embodiments, the present invention further includes a stop screw, wherein the panel is provided with a first post, the torsion spring is rotatably mounted on the first post, and the stop screw is connected to the first post. The stop screw can prevent the torsion spring from detaching from the first post.

[0015] In some embodiments, the present invention further includes a fixing screw, wherein the panel is provided with a second column, the electric push rod is provided with a convex plate, and the fixing screw is connected to the second column and presses the convex plate onto the second column. In this way, the electric push rod can be effectively fixed to the panel.

[0016] In some embodiments, the push block is provided with a groove, and the second arm of the torsion spring extends into the groove. The groove can limit the second arm, thereby limiting the movable space of the second arm.

[0017] In some embodiments, the lock head is provided with a push rod, and the push rod is fixedly connected to the first arm, so that the first arm can effectively move with the movement of the push rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of the emergency unlocking structure of a smart lock according to an embodiment of the present invention.

[0019] Figure 2 This is an exploded view of the structural schematic diagram of the smart lock emergency unlocking structure of an embodiment of the present utility model.

[0020] Figure 3 This is a cross-sectional view of a schematic structural diagram of the connecting shaft, clutch pin and free sleeve of the smart lock emergency unlocking structure in one embodiment of the present invention.

[0021] In the figure: 1. Handle structure, 2. Free sleeve, 3. Clutch mechanism, 4. Torsion spring, 5. Lock, 6. Panel, 7. Limit screw, 8. Fixing screw 21. Bump, 22. Spring, 23. Guide hole, 11. Handle, 12. Coupling, 13. Fixing sleeve, 121. Guide groove, 31. Electric push rod, 32. Push block, 33. Clutch pin, 311. Protruding plate, 321. Groove, 331. Protrusion, 41. First arm, 42. Second arm, 51. Push rod, 61. First column, 62. Second column. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below with reference to the accompanying drawings.

[0023] refer to Figure 1 、 Figure 2 and Figure 3 The utility model discloses an intelligent lock emergency unlocking structure, which includes a handle structure 1, a free sleeve 2, a clutch mechanism 3, a torsion spring 4, a lock head 5 and a panel 6.

[0024] The handle structure 1 includes a handle 11, a connecting shaft 12, and a fixing sleeve 13. The fixing sleeve 13 is fixedly connected to the panel 6 by screws. The panel 6 has a through hole. The fixing sleeve 13 is mounted on the connecting shaft 12, and the connecting shaft 12 passes through the through hole. The connecting shaft 12 and the fixing sleeve 13 can rotate relative to each other. The handle 11 is fixedly mounted on one end of the connecting shaft 12 to connect with the connecting shaft 12, so that the handle 11 can drive the connecting shaft 12 to rotate.

[0025] The emergency unlocking structure of this smart lock also includes a limiting screw 7. A first column 61 is provided on the panel 6. The torsion spring 4 is sleeved on the first column 61. The limiting screw 7 is fixedly connected to the first column 61 through threaded cooperation. The limiting screw 7 can effectively prevent the torsion spring 4 from falling off from the first column 61.

[0026] The torsion spring 4 includes a first arm 41 and a second arm 42 , and the first arm 41 and the second arm 42 are respectively provided on both sides of the torsion spring 4 .

[0027] The emergency unlocking structure of the smart lock further includes a fixing screw 8. A second column 62 is provided on the panel 6. Preferably, there are two fixing screws 8 and two second columns 62. The clutch mechanism 3 includes an electric push rod 31, a push block 32, and a clutch pin 33. A convex plate 311 is provided on each side of the electric push rod 31. The two convex plates 311 are respectively mounted on the two second columns 62. The two fixing screws 8 are respectively fixedly connected to the two second columns 62 through threaded engagement. The two fixing screws 8 can respectively fix the two convex plates 311 on the second columns 62, thereby securing the electric push rod 31 to the panel 6.

[0028] The electric push rod 31 and the push block 32 are connected by an elastic member, so that the electric push rod 31 can drive the push block 32 to move linearly, and the push block 32 can also move linearly relative to the electric push rod 31. A groove 321 is provided on the push block 32, and the second arm 42 of the torsion spring 4 extends into the groove 321, and the second arm 42 can abut against the push block 32.

[0029] The lock head 5 is fixedly mounted on the panel 6 by screws, and a push rod 51 is provided on the lock head 5. The push rod 51 can be driven by a key that matches the lock head 5. The push rod 51 and the first arm 41 of the torsion spring 4 are fixedly connected by screws.

[0030] The free sleeve 2 is rotatably arranged on the connecting shaft 12 of the handle structure 1. A protrusion 21 is provided on the free sleeve 2. A cavity is provided in the protrusion 21, and a spring 22 is provided in the cavity. A guide hole 23 is also provided at the bottom of the cavity. The guide hole 23 is communicated with the cavity. A protrusion 331 is provided on the side of the clutch pin 33. The protrusion 331 on the clutch pin 33 is located in the cavity, and one end of the spring 22 abuts against the protrusion 331, and the other end abuts against the bottom of the cavity.

[0031] One end of the clutch pin 33 abuts against the push block 32 , and the other end of the clutch pin 33 can pass through the cavity and the guide hole 23 when the push block 32 moves.

[0032] The connecting shaft 12 is further provided with a guide groove 121 , which is opposite to and communicates with the guide hole 23 , so that when the push block 32 moves, the end of the clutch pin 33 passing through the guide hole 23 can also extend into the guide groove 121 .

[0033] This smart lock emergency unlocking structure can be used in smart locks. When in use, the electric push rod 31 can be electrically connected to a control device such as a fingerprint, face or password, so that the control device can control the electric push rod 31 to work after the user performs corresponding identification, and the free sleeve 2 can be connected to the lock core, so that the smart lock can be unlocked as the free sleeve 2 rotates.

[0034] Under normal circumstances, under the action of the spring 22, the clutch pin 33 does not extend into the guide groove 121, and the free sleeve 2 and the connecting shaft 12 can rotate relative to each other. At this time, the smart lock is in a locked state. Even if the user turns the handle 11, the connecting shaft 12 will rotate, but the free sleeve 2 will not rotate accordingly, and the smart lock will not be opened.

[0035] The electric push rod 31 can drive the push block 32 to move, the spring 22 is compressed, and one end of the clutch pin 33 passes through the guide hole 23 and extends into the guide groove 121. At this time, the free sleeve 2 and the connecting shaft 12 are fixedly connected through the clutch pin 33. The user can rotate the handle 11 to rotate the connecting shaft 12, so that the free sleeve 2 also rotates to unlock the door. After the user stops rotating the handle 11, under the action of the spring 22, the clutch pin 33 can be disengaged from the guide groove 121 and reset, and the free sleeve 2 and the connecting shaft 12 become relatively rotatable again, and the smart lock becomes locked again.

[0036] When the user needs to open the smart lock by key in an emergency, the key can be used to drive the push rod 51 of the lock head 5 to move, and the first arm 42 will follow. At this time, the second arm 42 can move accordingly to drive the push block 32 to move, the spring 22 is compressed, and one end of the clutch pin 33 passes through the guide hole 23 and extends into the guide groove 121. At this time, the free sleeve 2 and the connecting shaft 12 are fixedly connected through the clutch pin 33. After that, the user can rotate the handle 11 to rotate the connecting shaft 12, so that the free sleeve 2 also rotates accordingly to achieve unlocking. In addition, after the user stops using the key, the spring 22 can be reset, the clutch pin 33 can be disengaged from the guide groove 121 and reset, the free sleeve 2 and the connecting shaft 12 can rotate relative to each other again, the torsion spring 4 and the lock head 5 are also reset, and the smart lock is locked again.

[0037] If the handle structure 1 is misaligned due to external force or fault, the guide groove 121 of the connecting shaft 12 and the guide hole 23 of the free sleeve 2 are not opposite to each other. When the user drives the push rod 51 of the lock head 5 to move by the key, the first arm 42 moves accordingly. However, at this time, the clutch pin 33 cannot enter the guide groove 121, and the clutch pin 33 cannot move, that is, the push block 32 abutting against the clutch pin 33 cannot move due to the force applied by the second arm 42. At this time, the torsion spring 4 will be deformed by the force to avoid damage to the clutch mechanism 3 and other structures caused by the force applied by the user when using the key, and after the user stops applying force, the torsion spring 4 can rely on its own elastic force to recover to ensure that the utility model can continue to be used. After the user eliminates the misalignment of the above-mentioned handle structure 1, the user can still use the above-mentioned smart lock through the utility model.

[0038] The above descriptions are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. A smart lock emergency unlocking structure, characterized in that: Including handle structure, free sleeve, clutch mechanism, torsion spring, lock head and panel, The clutch mechanism includes an electric push rod, a push block and a clutch pin. The handle structure, the electric push rod, the torsion spring and the lock are respectively installed on the panel. The free sleeve is rotatably arranged on the handle structure. The electric push rod can drive the push block to move. The clutch pin can abut against the push block and can pass through the free sleeve and extend into the handle structure as the push block moves. The torsion spring is provided with a first arm and a second arm, wherein the first arm is connected to the lock head, and the second arm can be connected to the push block.

2. The smart lock emergency unlocking structure according to claim 1, characterized in that: The free sleeve is provided with a protrusion, a cavity is provided in the protrusion, a spring is provided in the cavity, a guide hole is provided at the bottom of the cavity, a protrusion is provided on the clutch pin, one end of the clutch pin can pass through the cavity and the guide hole, the protrusion is located in the cavity and abuts against the spring.

3. The smart lock emergency unlocking structure according to claim 2, characterized in that: The handle structure includes a handle, a connecting shaft and a fixing sleeve, wherein the fixing sleeve is connected to the panel, the fixing sleeve is arranged on the connecting shaft, and the connecting shaft is connected to the handle.

4. The smart lock emergency unlocking structure according to claim 3, characterized in that: The free sleeve is sleeved on the connecting shaft, and the connecting shaft is provided with a guide groove, and the guide groove can be opposite to and communicated with the guide hole.

5. The smart lock emergency unlocking structure according to claim 1, characterized in that: It includes a limiting screw, a first column is provided on the panel, the torsion spring is rotatably sleeved on the first column, and the limiting screw is connected to the first column.

6. The smart lock emergency unlocking structure according to claim 1, characterized in that: It includes a fixing screw, a second column is provided on the panel, the electric push rod is provided with a convex plate, the fixing screw is connected to the second column, and the convex plate is pressed on the second column.

7. The smart lock emergency unlocking structure according to claim 1, characterized in that: The push block is provided with a groove, and the second arm of the torsion spring extends into the groove.

8. The smart lock emergency unlocking structure according to claim 1, characterized in that: A push rod is provided on the lock head, and the push rod is fixedly connected to the first arm.

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