Power switching device for smart lock and smart lock

Abstract

The present invention discloses a power switching device for a smart lock, comprising: a transmission mechanism, which is used to be connected to the first rotating shaft and the generator of the smart lock respectively, and when the first rotating shaft rotates in the circumferential direction, the transmission mechanism can transmit power to the generator to enable the generator to generate electricity; a transmission mechanism rotating shaft, the transmission mechanism rotating shaft is parallel to the first rotating shaft; a transmission mechanism frame, which can rotate around the transmission mechanism rotating shaft between a first position and a second position, and the transmission mechanism frame is installed with a transmission mechanism and a generator; a circuit switching switch, in the first position, the power transmission between the first rotating shaft and the transmission mechanism is established, the circuit switching switch is triggered, the power generation circuit is turned on, and the power supply circuit is disconnected; in the second position, the power transmission between the first rotating shaft and the transmission mechanism is cut off, the circuit switching switch is triggered, the power generation circuit is disconnected, and the power supply circuit is turned on. The present invention can extend the service life of the power generation system. The present invention also provides a smart lock.

Description

Technical Field

[0001] The present invention relates to the technical field of locks, and in particular to a power switching device for a smart lock and a smart lock. Background Art

[0002] At present, smart locks are widely welcomed and used more and more widely because of the convenience of not having to carry keys. However, they also have their own defects. Since their electronic systems rely on electrical energy, once the power is out, the entire system will be paralyzed, which means that users face the risk of being locked out of the door.

[0003] Later, smart locks that can be powered by external power sources appeared on the market. Usually, a USB power port was set up on the smart lock. This setting required people to carry a power bank to connect the door lock to power. If there was no power bank, they had to buy or borrow one, which was still inconvenient. So gradually, a self-generating system for mechanical power generation appeared, which turned the handle to drive the generator to generate electricity and power the electronic system.

[0004] Every time you unlock the lock, the power generation system is started at the same time regardless of whether the battery in the smart lock is sufficient, which greatly reduces the life of the power generation system that should be used for emergency situations. In addition, the force used during normal unlocking is large and the experience is poor. Summary of the invention

[0005] The purpose of the present invention is to solve the technical problems of the short service life of the existing power generation system and the large force required for normal unlocking. The present invention provides a power switching device for a smart lock, where the generator does not need to work all the time to generate electricity, but only works to generate electricity when needed, thereby extending the service life of the generator in the power generation system.

[0006] To solve the above technical problems, an embodiment of the present invention discloses a power switching device for a smart lock, comprising: a transmission mechanism, which is used to be connected to the first rotating shaft and the generator of the smart lock respectively, when the first rotating shaft rotates in the circumferential direction, the transmission mechanism can transmit power to the generator to enable the generator to generate electricity; a transmission mechanism rotating shaft, the transmission mechanism rotating shaft is parallel to the first rotating shaft; a transmission mechanism frame, which can rotate around the transmission mechanism rotating shaft between a first position and a second position, and the transmission mechanism frame is equipped with the transmission mechanism and the generator; a circuit switching switch, in the first position, the power transmission between the first rotating shaft and the transmission mechanism is established, the circuit switching switch is triggered, the power generation circuit is turned on, and the power supply circuit is disconnected; in the second position, the power transmission between the first rotating shaft and the transmission mechanism is cut off, the circuit switching switch is triggered, the power generation circuit is disconnected, and the power supply circuit is turned on.

[0007] The adoption of the above technical solution can extend the service life of the power generation system, while solving the problem of high force and poor experience during normal unlocking.

[0008] According to another specific embodiment of the present invention, it also includes: a transmission mechanism crank handle connected to the transmission mechanism frame, used to drive the transmission mechanism frame to rotate around the transmission mechanism rotation axis between the first position and the second position.

[0009] According to another specific embodiment of the present invention, it further includes: a limiting mechanism, which is used to limit the transmission mechanism crank handle to the first position or the second position.

[0010] According to another specific embodiment of the present invention, the limiting mechanism includes a clamp spring, the clamp spring includes a first through hole and a second through hole for the transmission mechanism crank to pass through, the first through hole and the second through hole are connected by a transition channel; wherein,

[0011] In the first position, the transmission mechanism crank handle is located at the first through hole;

[0012] In the second position, the transmission mechanism crank handle is located at the second through hole;

[0013] Under the action of external force, the transmission mechanism handle can pass through the transition channel to transition to the first through hole or the second through hole. When the transmission mechanism handle passes through the transition channel, the transition channel is squeezed and deformed.

[0014] According to another specific embodiment of the present invention, the circuit switching switch is installed on the transmission mechanism frame. In the first position, the circuit switching switch is in contact with the side wall of the smart lock panel, and the circuit switching switch is triggered; in the second position, the circuit switching switch is separated from the side wall of the smart lock panel, and the circuit switching switch is triggered.

[0015] According to another specific embodiment of the present invention, the transmission mechanism includes:

[0016] A second rotating shaft, wherein a first gear and a second gear are spaced apart along the axial direction of the second rotating shaft, and the first gear is meshed with a driving gear arranged on the first rotating shaft;

[0017] A third rotating shaft is provided with a third gear and a fourth gear spaced apart along the axial direction of the third rotating shaft, the third gear is meshed with the second gear, and the fourth gear is meshed with a fifth gear provided on the input shaft of the generator.

[0018] According to another specific embodiment of the present invention, the total transmission ratio between the driving gear and the fifth gear is between 1:300 and 1:50.

[0019] According to another specific embodiment of the present invention, the total transmission ratio between the driving gear and the fifth gear is 1:100.

[0020] The present invention also provides a smart lock, comprising: the power switching device described in any one of the above items;

[0021] An operating part having a first rotating shaft, wherein the operating part is used to drive the first rotating shaft to rotate in a first direction or a second direction in a circumferential direction, wherein the first direction is opposite to the second direction;

[0022] The power transmission part is connected to the first rotating shaft, and the transmission mechanism is connected to the power transmission part and the generator respectively; wherein,

[0023] When the first rotating shaft rotates in the first direction, the power transmission part establishes power transmission between the first rotating shaft and the transmission mechanism;

[0024] When the first rotating shaft rotates along the second direction, the power transmission part cuts off the power transmission between the first rotating shaft and the transmission mechanism.

[0025] According to another specific embodiment of the present invention, the power transmission part includes a one-way bearing, a one-way clutch or a ratchet mechanism.

[0026] According to another specific embodiment of the present invention, the power transmission part is a one-way bearing, the inner ring of the one-way bearing is sleeved on the first rotating shaft, the outer ring of the one-way bearing is sleeved with a driving gear, and the driving gear is connected to the transmission mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A three-dimensional diagram showing a smart lock according to an embodiment of the present invention Figure 1 ;

[0028] Figure 2 A side view showing the operating portion of a smart lock according to an embodiment of the present invention Figure 1 ;

[0029] Figure 3 A three-dimensional diagram showing a smart lock according to an embodiment of the present invention Figure 2 ;

[0030] Figure 4 A three-dimensional diagram showing a smart lock according to an embodiment of the present invention Figure 3 ;

[0031] Figure 5 A side view of a smart lock according to an embodiment of the present invention is shown. Figure 1 ;

[0032] Figure 6 A three-dimensional diagram showing a smart lock according to an embodiment of the present invention Figure 4 ;

[0033] Figure 7 A side view of a smart lock according to an embodiment of the present invention is shown. Figure 2 ;

[0034] Figure 8 A three-dimensional diagram showing a smart lock according to an embodiment of the present invention Figure 5 ;

[0035] Fig. 9 A three-dimensional diagram showing a smart lock according to an embodiment of the present invention Figure 6 ;

[0036] Fig.10 Schematic diagram showing the circuit connection of the smart lock according to the embodiment of the present invention Figure 1 ;

[0037] Fig.11 Schematic diagram showing the circuit connection of the smart lock according to the embodiment of the present invention Figure 2 ;

[0038] Fig.12 A three-dimensional diagram showing a smart lock according to an embodiment of the present invention Figure 7 ;

[0039] Fig.13 A side view showing the operating portion of a smart lock according to an embodiment of the present invention Figure 2 . DETAILED DESCRIPTION

[0040] The following specific embodiments illustrate the implementation of the present invention, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this invention are limited to this implementation. On the contrary, the purpose of introducing the invention in conjunction with the implementation is to cover other options or modifications that may extend based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0041] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0042] In the description of this embodiment, it should be noted that the terms "upper", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0043] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0044] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0045] refer to Figure 1 and Figure 2 The present invention provides a smart lock 1, comprising: an operating part 10, a power transmission part 30 and a power switching device, wherein the operating part 10 has a first rotating shaft 20, the first rotating shaft 20 is connected to the power transmission part 30, and the operating part 10 is used for a user to hold to drive the first rotating shaft 20 to rotate in a first direction ( Figure 1 A direction) or the second direction ( Figure 1 Optionally, the operating portion 10 is a door handle; optionally, the operating portion 10 is a knob.

[0046] In addition, the power switching device has a transmission mechanism 40, which is connected to the power transmission part 30 and the generator 41 respectively. When the first rotating shaft 20 rotates along the circumferential direction, the transmission mechanism 40 can transmit power to the generator 41, so that the generator 41 in the power generation system generates electricity; wherein, when the first rotating shaft 20 rotates along the first direction, the power transmission part 30 establishes power transmission between the first rotating shaft 20 and the transmission mechanism 40, and when the operating part 10 is rotated, the generator 41 can generate electricity. When the first rotating shaft 20 rotates along the second direction, the power transmission part 30 cuts off the power transmission between the first rotating shaft 20 and the transmission mechanism 40, and when the operating part 10 is rotated, the generator 41 does not generate electricity.

[0047] That is, when the operating part 10 of the present invention reciprocates in the first direction and the second direction, the torque in the first direction is transmitted to the generator 41 through the power transmission part 30, and the rotation direction of the input shaft of the generator 41 remains unchanged and does not rotate repeatedly, thereby extending the service life of the generator 41. Finally, the reciprocating rotation of the operating part 10 and the mechanical inertia of the power generation system will eventually be converted into a unidirectional rotation of the generator 41, thereby continuously outputting power.

[0048] Equivalently, the power transmission part 30 of the present invention realizes unidirectional power transmission. Optionally, the power transmission part 30 includes a one-way bearing, a one-way clutch or a ratchet mechanism. However, the specific type of the power transmission part 30 is not limited thereto, and it only needs to be able to realize unidirectional power transmission.

[0049] refer to Figure 1 and Figure 2 In this embodiment, the power transmission part 30 is a one-way bearing, the inner ring of the one-way bearing is sleeved on the first rotating shaft 20, the outer ring of the one-way bearing is sleeved with a driving gear 21, and the driving gear 21 is connected to the transmission mechanism 40. When the operating part 10 rotates in the first direction, the driving gear 21 is driven to rotate by the one-way bearing, and when the operating part 10 rotates in the second direction, the inner and outer rings of the one-way bearing slip, and at this time, the torque of the first rotating shaft 20 connected to the operating part 10 cannot be transmitted to the driving gear 21 through the one-way bearing. Through the continuous reciprocating rotation of the operating part 10, the driving gear 21 always has only one rotation direction, so that the driving gear 21 will only transmit power to the transmission mechanism 40 in the first direction to drive the generator 41 to generate electricity.

[0050] However, the specific type of the transmission mechanism 40 for transmitting the torque of the first rotating shaft 20 to the generator 41 is not limited, as long as it can achieve torque transmission. Figure 1 The transmission mechanism 40 is a gear structure. Optionally, the transmission mechanism 40 includes: a second rotating shaft 50, the second rotating shaft 50 is parallel to the first rotating shaft 20, and a first gear 51 is provided along the axial direction of the second rotating shaft 50 (refer to Figure 5 ) and a second gear 52, the first gear 51 is meshed with the driving gear 21; a third rotating shaft 53, the third rotating shaft 53 is parallel to the second rotating shaft 50, and a third gear 54 and a fourth gear 55 are provided at intervals along the axial direction of the third rotating shaft 53, the third gear 54 is meshed with the second gear 52, and the fourth gear 55 is meshed with a fifth gear 56 provided on the input shaft of the generator 41.

[0051] Thus, when the operating part 10 drives the first rotating shaft 20 to rotate along the first direction, the power transmission part 30 will drive the driving gear 21 to rotate, and then the torque is transmitted to the first gear 51, the second rotating shaft 50, the second gear 52, the third gear 54, the third rotating shaft 53, the fourth gear 55, the fifth gear 56, and the input shaft of the generator 41 in sequence, and the generator 41 continuously outputs power.

[0052] It should be noted that the present invention is not limited to the above gear structure. In other embodiments, other numbers of gears may be provided according to the torque transmission requirements. For example, referring to Figure 5, the transmission mechanism 40 further includes a fourth rotating shaft 57, the fourth rotating shaft 57 is parallel to the third rotating shaft 53, and a sixth gear 58 and a seventh gear 59 are provided at intervals along the axial direction of the fourth rotating shaft 57, the sixth gear 58 is meshed with the second gear 52, and the seventh gear 59 is meshed with the third gear 54.

[0053] Optionally, the total transmission ratio between the driving gear 21 and the fifth gear 56 is between 1:300 and 1:50, including 1:300 and 1:50. Optionally, the total transmission ratio between the driving gear 21 and the fifth gear 56 is 1:100. After such a setting, it can be suitable for the speed and torque of the user shaking the operating part 10, and the power generated by the micro-generator 41 is sufficient; in addition, it can play an acceleration role, and the user shakes the operating part 10 with less effort.

[0054] There is no restriction on the transmission ratio of the gear transmission between the driving gear 21 and the fifth gear 56 , as long as the above-mentioned total transmission ratio between the driving gear 21 and the fifth gear 56 is satisfied.

[0055] As mentioned above, the specific type of the transmission mechanism 40 is not limited. Figure 3 The transmission mechanism 40 is a belt transmission structure. In other embodiments, the transmission mechanism 40 can also be a worm gear transmission mechanism 40, a connecting rod mechanism, or other mechanism capable of transmitting torque.

[0056] refer to Figure 4 The power switching device of the smart lock 1 of the present invention further includes: a transmission mechanism rotating shaft 43, the transmission mechanism rotating shaft 43 is parallel to the first rotating shaft 20; a transmission mechanism frame 42, which can rotate around the transmission mechanism rotating shaft 43 between a first position and a second position, and the transmission mechanism frame 42 is equipped with the transmission mechanism 40 and the generator 41. Figure 5 and Figure 6 , in the first position, the power transmission between the first rotating shaft 20 and the transmission mechanism 40 is established; Figure 7 and Figure 8 In the second position, the power transmission between the first rotating shaft 20 and the transmission mechanism 40 is cut off.

[0057] That is, by switching the position of the transmission mechanism frame 42, the power transmission between the first rotating shaft 20 and the transmission mechanism 40 is established or cut off. In the first position, the operating part 10 is rotated in the first direction, and the generator 41 can generate electricity; in the second position, the operating part 10 is rotated in the first direction, and the generator 41 does not generate electricity. After such a setting, when the power supply of the smart lock 1 is sufficient, the power transmission between the transmission mechanism 40 of the power generation system and the first rotating shaft 20 of the smart lock 1 can be cut off through this device, and power generation and power supply are stopped. When the power supply of the smart lock 1 is insufficient, the emergency power generation system needs to be started, and the power transmission between the transmission mechanism 40 of the power generation system and the first rotating shaft 20 of the smart lock 1 is established through this device, and power generation starts and provides power to the entire system. The generator 41 does not need to work all the time to generate electricity, but only works to generate electricity when needed, which prolongs the service life of the generator 41. Moreover, since the power switching is realized, it is avoided that when there is no need for power generation, the generator 41 is idle when the lock is unlocked normally, and there is an additional load; so that the force used by the user is small when the lock is unlocked normally, which also solves the problem of poor experience due to large force when unlocking normally.

[0058] In this embodiment, reference Figure 5 In the first position, the driving gear 21 and the first gear 51 are meshed, and the power transmission between the driving gear 21 and the first gear 51 is established. The transmission mechanism 40 of the power generation system can obtain power from the driving gear 21 and generate electricity; Figure 7 In the second position, the driving gear 21 and the first gear 51 are separated, the power transmission between the driving gear 21 and the first gear 51 is cut off, and the transmission mechanism 40 of the power generation system loses power and stops generating electricity.

[0059] In addition, reference Figure 4 The smart lock 1 further includes: a transmission mechanism crank handle 44, connected to the transmission mechanism frame 42, and used to drive the transmission mechanism frame 42 to rotate around the transmission mechanism rotation axis 43 between the first position and the second position. Figure 5 and Figure 7 By toggling the transmission mechanism crank 44 left and right, the transmission mechanism frame 42 of the power generation system can be rotated around the transmission mechanism rotation axis 43, thereby driving the movement of the transmission mechanism 40. In this embodiment, the rotation of the transmission mechanism frame 42 around the transmission mechanism rotation axis 43 drives the movement of the first gear 51 to control the first gear 51 to engage or disengage with the driving gear 21.

[0060] Continue to refer Figure 4The smart lock 1 further includes: a limiting mechanism 46, which is used to limit the transmission mechanism crank 44 to the first position or the second position. After the limiting mechanism 46 is set, the transmission mechanism crank 44 is kept in the first position or the second position, so that the first gear 51 and the driving gear 21 are reliably engaged or separated, which is convenient for selecting the timing of the generator 41 to generate electricity, and will not affect the normal operation of other components of the smart lock 1.

[0061] Specifically, refer to Figure 6 and Figure 8 The limiting mechanism 46 includes a clamp spring, and the clamp spring includes a first through hole 461 and a second through hole 462 for the transmission mechanism crank 44 to pass through, and the first through hole 461 and the second through hole 462 are connected by a transition channel 463; wherein, with reference to Figure 6 , in the first position, the transmission mechanism crank handle 44 is located in the first through hole 461; Figure 8 In the second position, the transmission mechanism handle 44 is located at the second through-hole 462; under the action of external force, the transmission mechanism handle 44 can pass through the transition channel 463 to transition to the first through-hole 461 or the second through-hole 462. In the process of the transmission mechanism handle 44 passing through the transition channel 463, the transition channel 463 is squeezed and deformed.

[0062] That is, the apertures of the first through hole 461 and the second through hole 462 for accommodating the transmission mechanism crank handle 44 are larger than the size of the transition channel 463, and the clamp spring has a special-shaped hole with large ends and a small middle (smaller than the diameter of the transmission mechanism crank handle 44). When the transmission mechanism crank handle 44 with a diameter larger than the size of this position wants to pass through the small middle position (transition channel 463), the transition channel 463 can only be pushed open and passed under a large external force. During this process, the transition channel 463 is squeezed and deformed, and the transmission mechanism crank handle 44 is fixed by the first through hole 461 or the second through hole 462 after passing through the small middle position.

[0063] In addition, refer to Figure 4 The smart lock 1 also includes: a circuit switching switch 45, reference Fig.10 , in the first position, the circuit switching switch 45 is triggered, the power generation circuit is turned on, and the power supply circuit is turned off; Fig.11, in the second position, the circuit switching switch 45 is triggered, the power generation circuit is disconnected, and the power supply circuit is turned on. Optionally, the circuit switching switch 45 is a micro switch. Thus, when power generation is required, while the power transmission between the driving gear 21 and the first gear 51 is established, the power generation system provides power to the entire system; when the power generation system stops generating power, while the power transmission between the driving gear 21 and the first gear 51 is cut off, the power supply provides power to the entire system. The two steps of power switching and circuit switching are implemented in combination, which can achieve one-step switching, improve the user's operating experience, and improve the safety and reliability of the circuit.

[0064] The installation position of the circuit switching switch 45 is not limited, as long as it can realize the switching between the power generation circuit and the power supply circuit. Figure 4 , Figure 5 and Figure 7 , the circuit switching switch 45 is installed on the transmission mechanism frame 42; in the first position, the circuit switching switch 45 is in contact with the side wall of the smart lock panel 70, and the circuit switching switch 45 is triggered; in the second position, the circuit switching switch 45 is separated from the side wall of the smart lock panel 70, and the circuit switching switch 45 is triggered.

[0065] In summary, reference Figure 5 After the transmission mechanism crank 44 is turned counterclockwise, the transmission mechanism crank 44 is located in the first position, producing the following results:

[0066] 1) The first gear 51 is close to the driving gear 21, so that the transmission mechanism 40 of the power generation system can obtain power from the driving gear 21 and generate electricity;

[0067] 2) The circuit switching switch 45 contacts the side wall of the smart lock panel 70. At this time, the state of the circuit switching switch 45 connects the power generation system circuit to the entire system (MCU), while cutting off the circuit between the power supply of the smart lock 1 and the entire system;

[0068] 3) The transmission mechanism crank handle 44 is maintained at the right position, and the transmission mechanism crank handle 44 is located in the first through hole 461 .

[0069] refer to Figure 7 After the transmission mechanism crank 44 is turned clockwise, the transmission mechanism crank 44 is located at the second position, producing the following results:

[0070] 1) The first gear 51 moves away from the driving gear 21, causing the transmission mechanism 40 of the power generation system to lose power and stop generating electricity;

[0071] 2) The circuit switching switch 45 is separated from the side wall of the smart lock panel 70. At this time, the state of the circuit switching switch 45 allows the power supply of the smart lock 1 to be connected to the entire system (MCU), while cutting off the circuit between the power generation system and the entire system;

[0072] 3) The transmission mechanism crank handle 44 is held at the left side position, and the transmission mechanism crank handle 44 is located in the second through hole 462 .

[0073] In other embodiments, reference Fig. 9 The circuit switching switch 45 is installed at the bottom of the smart lock panel 70. After the transmission mechanism handle 44 is turned counterclockwise, the transmission mechanism handle 44 is located in the first position, the circuit switching switch 45 is in contact with the transmission mechanism handle 44, and the circuit switching switch 45 is triggered; after the transmission mechanism handle 44 is turned clockwise, the transmission mechanism handle 44 is located in the second position, the circuit switching switch 45 is separated from the transmission mechanism handle 44, and the circuit switching switch 45 is triggered.

[0074] refer to Fig.12 and Fig.13 A fingerprint recognition module 60 is also installed on the operating part 10 of the smart lock 1, which is used to recognize the fingerprint of the user when the user holds the operating part 10. During the power generation process, since the user's finger is always in contact with the fingerprint recognition module 60, as long as the smart lock 1 has enough power, the fingerprint can be quickly collected and recognized, and then the lock can be unlocked. The process does not require long-term operation and consumes less power, so only a small-capacity battery is required, avoiding a large-scale charging and storage system, and simplifying the technical solution of the smart lock 1.

[0075] The installation position of the fingerprint recognition module 60 on the operating unit 10 is not limited, as long as the fingerprint recognition module 60 can recognize the user's fingerprint when the user holds the operating unit 10. Optionally, the extension line of the first rotating shaft 20 passes through the fingerprint recognition module 60. That is, the fingerprint recognition module 60 is installed on the rotating shaft head of the operating unit 10, and the thumb can just press on the fingerprint recognition module 60 when holding the operating unit 10.

[0076] refer to Fig.13 Optionally, the fingerprint recognition module 60 is connected to the operating unit 10 via a mounting bracket 61 located in the operating unit 10. The connection method between the mounting bracket 61 and the operating unit 10 is not limited; optionally, the mounting bracket 61 is connected to the operating unit 10 via a bolt 62.

[0077] It should be noted that after the fingerprint recognition module 60 is installed on the operating unit 10, the operating unit 10 can drive the generator 41 to rotate unidirectionally under the action of the aforementioned power transmission unit 30. The power transmission unit 30 may not be provided, and the transmission mechanism 40 is respectively connected to the first rotating shaft 20 and the generator 41. The operating unit 10 can drive the generator 41 to rotate bidirectionally, and fingerprints can also be quickly collected and recognized. That is, the power received by the power switching device can be unidirectional or bidirectional.

[0078] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above is a further detailed description of the present invention in conjunction with specific embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. Those skilled in the art may make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A power switching device for a smart lock, characterized in that: include: A transmission mechanism, used to be connected to the first rotating shaft of the smart lock and the generator respectively, and when the first rotating shaft rotates in the circumferential direction, the transmission mechanism can transmit power to the generator to enable the generator to generate electricity; a transmission mechanism rotation axis, wherein the transmission mechanism rotation axis is parallel to the first rotation axis; a transmission mechanism frame, which is rotatable around the transmission mechanism rotation axis between a first position and a second position, and the transmission mechanism and the generator are mounted on the transmission mechanism frame; A circuit switching switch, in the first position, power transmission between the first rotating shaft and the transmission mechanism is established, the circuit switching switch is triggered, the power generation circuit is turned on, and the power supply circuit is disconnected; in the second position, power transmission between the first rotating shaft and the transmission mechanism is cut off, the circuit switching switch is triggered, the power generation circuit is disconnected, and the power supply circuit is turned on.

2. The power switching device according to claim 1, characterized in that: Also includes: The transmission mechanism crank handle is connected to the transmission mechanism frame and is used to drive the transmission mechanism frame to rotate around the transmission mechanism rotation axis between a first position and a second position.

3. The power switching device according to claim 2, characterized in that: Also includes: The limiting mechanism is used to limit the transmission mechanism crank handle to the first position or the second position.

4. The power switching device according to claim 3, characterized in that: The limiting mechanism includes a clamp spring, and the clamp spring includes a first through hole and a second through hole for the transmission mechanism crank to pass through, and the first through hole and the second through hole are connected by a transition channel; wherein, In the first position, the transmission mechanism crank handle is located at the first through hole; In the second position, the transmission mechanism crank handle is located at the second through hole; Under the action of external force, the transmission mechanism handle can pass through the transition channel to transition to the first through hole or the second through hole. When the transmission mechanism handle passes through the transition channel, the transition channel is squeezed and deformed.

5. The power switching device according to claim 1, characterized in that: The circuit switching switch is installed on the transmission mechanism frame. In the first position, the circuit switching switch is in contact with the side wall of the smart lock panel and the circuit switching switch is triggered; in the second position, the circuit switching switch is separated from the side wall of the smart lock panel and the circuit switching switch is triggered.

6. The power switching device according to claim 1, characterized in that: The transmission mechanism comprises: A second rotating shaft, wherein a first gear and a second gear are spaced apart along the axial direction of the second rotating shaft, and the first gear is meshed with a driving gear arranged on the first rotating shaft; A third rotating shaft is provided with a third gear and a fourth gear spaced apart along the axial direction of the third rotating shaft, the third gear is meshed with the second gear, and the fourth gear is meshed with a fifth gear provided on the input shaft of the generator.

7. The power switching device according to claim 6, characterized in that: The total transmission ratio between the driving gear and the fifth gear is between 1:300 and 1:

50.

8. The power switching device according to claim 7, characterized in that: The total transmission ratio between the driving gear and the fifth gear is 1:

100.

9. A smart lock, characterized in that: include: The power switching device according to any one of claims 1 to 8; An operating part having a first rotating shaft, wherein the operating part is used to drive the first rotating shaft to rotate in a first direction or a second direction in a circumferential direction, wherein the first direction is opposite to the second direction; The power transmission part is connected to the first rotating shaft, and the transmission mechanism is connected to the power transmission part and the generator respectively; wherein, When the first rotating shaft rotates in the first direction, the power transmission part establishes power transmission between the first rotating shaft and the transmission mechanism; When the first rotating shaft rotates along the second direction, the power transmission part cuts off the power transmission between the first rotating shaft and the transmission mechanism.

10. The smart lock according to claim 9, characterized in that: The power transmission part includes a one-way bearing, a one-way clutch or a ratchet mechanism.

11. The smart lock according to claim 9, characterized in that: The power transmission part is a one-way bearing, the inner ring of the one-way bearing is sleeved on the first rotating shaft, the outer ring of the one-way bearing is sleeved with a driving gear, and the driving gear is connected to the transmission mechanism.

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