A smart padlock with a combination of physical keys and multiple unlocking modes

Abstract

The present application relates to the technical field of lock, particularly relates to a kind of entity key combination key multi-mode unlocking intelligent padlock.It includes lock body, key unlocking assembly, button unlocking assembly, lock beam, lock beam elastic element, axle assembly, axle dial, limiting bead, the inside of lock body includes first installation area and second installation area, first installation area and second installation area are sealed and isolated, key unlocking assembly, button unlocking assembly, axle dial are installed in first installation area, the two ends of axle dial are respectively connected with key unlocking assembly, button unlocking assembly, lock beam, lock beam elastic element, axle assembly, limiting bead are installed in second installation area, one end of axle assembly is inserted into first installation area and is connected with the shaft center of axle dial, one end of lock beam is connected in lock body by lock beam elastic element, the other end of lock beam is connected in lock hole on lock body, limiting bead is arranged between axle assembly and lock beam.The present application has simple design structure and is easy to install, and has better practical performance.

Description

Technical Field

[0001] This invention relates to the field of lock technology, and in particular to a smart padlock that combines physical buttons with a key for multi-mode unlocking. Background Technology

[0002] In an ever-changing world, outdoor and indoor security requires modern methods of protection. Traditional locks are no longer sufficient, and smart padlocks are gradually becoming a revolutionary product for asset protection. With the accelerated advancement of intelligent technology, the application scope of smart padlock systems is constantly expanding. Beyond the traditional warehousing and logistics industry, smart padlock systems can be widely used in various public places, such as schools, hospitals, and shopping malls, as well as various sharing economy platforms, such as shared bicycles and shared power banks. Furthermore, with the continuous development of smart homes, smart fingerprint locks will be further integrated into the home and commercial sectors in the future. Through the application of smart padlock systems, intelligent security management in various locations and intelligent management of sharing economy platforms can be achieved, improving security and user experience while reducing management costs and increasing operational efficiency.

[0003] Currently, smart padlocks on the market have the following problems:

[0004] (1) Currently, the products on the market use a single key to open the lock, which is generally a mechanical key that directly drives the lock, and the anti-theft level is limited.

[0005] (2) Currently, physical keypads used in products on the market are generally mechanical keys. Touch keypads are too small and cause interference when touched, so they cannot achieve the touch effect.

[0006] (3) Currently, products on the market use waterproof rings or waterproof glue to fill the waterproof layer, and the waterproof rating is generally between IP65 and IP66 (rain). If you want to achieve IP67 to IP68 (water immersion) rating, competing products usually use waterproof glue, which has the defects of being unrepairable and requiring rework. Summary of the Invention

[0007] This invention provides a smart padlock that combines physical buttons with a key for multi-mode unlocking, aiming to solve the problems existing in current smart padlocks.

[0008] This invention provides a smart padlock with multiple unlocking methods combining physical buttons and keys, including a lock body, a key unlocking assembly with a clutch structure, a button unlocking assembly, a lock beam, a lock beam elastic element, a connecting shaft assembly, a connecting shaft dial, and a limiting bead. The lock body internally includes a first installation area and a second installation area, which are sealed and isolated from each other. The key unlocking assembly, the button unlocking assembly, and the connecting shaft dial are installed in the first installation area, with both ends of the connecting shaft dial respectively engaging with the key unlocking assembly and the button unlocking assembly. The lock beam, the lock beam elastic element, the connecting shaft assembly, and the limiting bead are installed in the second installation area. One end of the connecting shaft assembly is inserted into the first installation area and connected to the axis of the connecting shaft dial. One end of the lock beam is connected to the lock body through the lock beam elastic element, and the other end of the lock beam is connected to a key hole on the lock body. The limiting bead is disposed between the connecting shaft assembly and the lock beam.

[0009] As a further improvement of the present invention, the shaft assembly includes a first bearing, a shaft, and a shaft return torsion spring. One end of the shaft is connected to the shaft center of the shaft dial, and the other end of the shaft is connected to the lock body through the first bearing. The shaft return torsion spring is wound around the shaft, and one end of the shaft return torsion spring is fixed to the shaft and the other end is fixed to the lock body.

[0010] As a further improvement of the present invention, the barge shaft is provided with a clearance position. When unlocking, the barge shaft rotates to the clearance position and aligns with the limit bead. When locking, the barge shaft rotates to the clearance position and is offset from the limit bead.

[0011] As a further improvement of the present invention, the key unlocking assembly includes a lock head drive assembly, a lock head clutch shaft, a clutch shaft spring, and a key lock head. The lock head drive assembly and the key lock head are connected to the lock body, the lock head clutch shaft is connected to the key lock head, and the clutch shaft spring is disposed between the lock head clutch shaft and the lock head drive assembly.

[0012] As a further improvement of the present invention, the lock head drive assembly includes a lock head gear pressure plate, a lock head drive gear, and a lock head return torsion spring. The lock head drive gear is movably connected to the lock body. The lock head gear pressure plate is fixed to the lock body and limits the lock head drive gear. One end of the lock head return torsion spring is fixed to the lock head drive gear, and the other end is fixed to the lock head gear pressure plate.

[0013] As a further improvement of the present invention, the lock head drive gear is provided with an unlocking protrusion, and the lock head clutch shaft is provided with an unlocking groove. The lock head drive gear and the lock head clutch shaft are connected through the unlocking protrusion and the unlocking groove. When unlocking, the key lock head drives the lock head drive gear to rotate through the lock head clutch shaft, and connects the lock head drive gear with one end of the axle dial.

[0014] As a further improvement of the present invention, the button unlocking assembly includes a motor dial, an unlocking motor, and a battery pack. The unlocking motor and the battery pack are installed in the lock body. The battery pack is connected to the unlocking motor. The output end of the unlocking motor is connected to the motor dial. When unlocking, the unlocking motor drives the motor dial to rotate and aligns the motor dial with the other end of the shaft dial.

[0015] As a further improvement of the present invention, the button unlocking assembly includes a button panel, a button waterproof pad, and a circuit board. The circuit board is fixed on the lock body, the button waterproof pad covers the circuit board, and the button waterproof pad has a switch protrusion that corresponds to a tactile switch on the circuit board. The button panel covers the button waterproof pad.

[0016] As a further improvement of the present invention, the smart padlock with multiple unlocking methods combining physical buttons and keys also includes a waterproof pressure plate assembly. The waterproof pressure plate assembly is disposed between the first installation area and the second installation area. The waterproof pressure plate assembly includes a shaft waterproof pad, a shaft waterproof pressure plate, and a second bearing. The second bearing is connected inside the shaft waterproof pressure plate, and the shaft waterproof pad is connected to the shaft waterproof pressure plate. One end of the shaft assembly passes through the shaft waterproof pad and the shaft waterproof pressure plate and is connected to the second bearing.

[0017] As a further improvement of the present invention, the smart padlock with multiple unlocking methods combining physical buttons and keys also includes a padlock cover, a lock head cover, and a waterproof cover. The waterproof cover is fitted into the padlock cover, the lock head cover is assembled on the end of the key unlocking component near the keyhole, and the padlock cover is assembled on the bottom of the lock body.

[0018] The beneficial effects of this invention are: This structure uses a key-operated clutch combination unlocking method, solving the problem of unlocking solely with a key; the design employs a combination of physical keypad and membrane keypad panel operation, achieving the effect of touch buttons in a high-end smart padlock; the structure partitions the interior of the lock body and utilizes a double-ring waterproof structure with waterproof pads in the areas where the key unlocking components and keypad unlocking components are installed. This smart padlock design is simple and easy to install, offers better practicality, and features a sleek and elegant appearance, making it a high-end smart padlock. Attached Figure Description

[0019] Figure 1 This is an overall structural diagram of the smart padlock of the present invention;

[0020] Figure 2 This is an exploded view of the structure of the smart padlock of this invention;

[0021] Figure 3 This is a structural diagram of the inner shell assembly in this invention.

[0022] Figure 4 This is an exploded view of the inner shell assembly in this invention;

[0023] Figure 5 This is an exploded view of the key unlocking component and the button unlocking component in this invention;

[0024] Figure 6 This is an exploded view of the circuit board assembly in this invention;

[0025] Figure 7 This is an exploded view of the waterproof pressure plate assembly in this invention;

[0026] Figure 8 This is a side view of the structure of the smart padlock of the present invention;

[0027] Figure 9 This is a cross-sectional view of the intelligent padlock of the present invention along the AA direction;

[0028] Figure 10 This is a front view of the structure of the smart padlock of the present invention;

[0029] Figure 11 This is a cross-sectional view of the smart padlock of the present invention in the BB direction. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0031] like Figure 1 , 2 As shown in Figures 8 and 9, a smart padlock with multiple unlocking methods combining physical buttons and keys according to the present invention includes a lock body 1, a key unlocking assembly 2, a button unlocking assembly 3, a lock beam 4, a lock beam elastic element 41, a connecting shaft assembly 5, a connecting shaft dial 6, and a limiting bead 42. The lock body 1 includes a first mounting area 14 and a second mounting area 15, which are sealed and isolated from each other. The key unlocking assembly 2, the button unlocking assembly 3, and the connecting shaft dial 6 are installed in the first mounting area 14, and the two ends of the connecting shaft dial 6 are respectively connected to the key unlocking assembly 2 and the button unlocking assembly 3. The lock beam 4, the lock beam elastic element 41, the connecting shaft assembly 5, and the limiting bead 42 are installed in the second mounting area 15. One end of the connecting shaft assembly 5 is inserted into the first mounting area 14 and connected to the axis of the connecting shaft dial 6. One end of the lock beam 4 is connected to the lock body 1 through the lock beam elastic element 41, and the other end of the lock beam 4 is connected to the lock hole on the lock body 1. The limiting bead 42 is disposed between the connecting shaft assembly 5 and the lock beam 4. The limiting bead 42 is preferably a steel ball. The lock beam elastic element 41 is preferably a lock beam 4 spring. The key unlocking assembly 2 and the button unlocking assembly 3 together constitute the inner shell assembly 8. The inner shell assembly 8 includes an inner shell 81, and the key unlocking assembly 2 and the button unlocking assembly 3 are assembled on the inner shell 81. The inner shell 81 is part of the lock body 1.

[0032] The lock body 1 has two sets of unlocking mechanisms: a key-operated unlocking assembly 2 and a key-operated password-based unlocking assembly 3. Both sets of assemblies are connected to the pivot wheel 6. Using either set alone can rotate the pivot wheel 6, causing the pivot assembly 5 to rotate and the limit bead 42 to avoid the lock beam 4, thus unlocking the lock. The first mounting area 14 is used to assemble the key-operated unlocking assembly 2, the key-operated unlocking assembly 3, and the pivot wheel 6, and needs to be waterproof and sealed. The second mounting area 15 is exposed externally; therefore, a seal is needed to isolate the first mounting area 14 from the second mounting area 15 to maintain a waterproof and sealed effect.

[0033] like Figure 3 and 4 As shown, the pivot assembly 5 includes a first bearing 53, a pivot 51, and a pivot return torsion spring 52. One end of the pivot 51 is connected to the axis of the pivot dial 6, and the other end of the pivot 51 is connected to the lock body 1 via the first bearing 53. The pivot return torsion spring 52 is wound around the pivot 51, with one end fixed to the pivot 51 and the other end fixed to the lock body 1. The first bearing 53 allows the pivot 51 to rotate freely relative to the lock body 1. The pivot return torsion spring 52 provides a reset torque to the pivot 51. After unlocking, the clearance position 54 of the pivot 51 aligns with the limiting bead 42, at which point the pivot return torsion spring 52 is in a torsional state. When the lock beam 4 is reinserted into the lock body 1, the torque of the pivot return torsion spring 52 pushes the limiting bead 42 into the locking groove 43 of the lock beam 4, completing the locking. The first bearing 53 is preferably a deep groove ball bearing.

[0034] The pivot 51 is provided with a clearance position 54. When unlocking, the pivot 51 rotates until the clearance position 54 is aligned with the limiting bead 42. When locking, the pivot 51 rotates until the clearance position 54 is offset from the limiting bead 42. The lock beam 4 is provided with a locking groove 43. When locking, the pivot 51 presses against the limiting bead 42, so that the limiting bead 42 is engaged in the locking groove 43, limiting the lock beam 4 and achieving a locking effect. When unlocking, the clearance position 54 of the pivot 51 provides space for the limiting bead 42 to move. At this time, the limiting force of the limiting bead 42 on the lock beam 4 is insufficient. Under the elastic force of the lock beam elastic element 41, the lock beam 4 will push the limiting bead 42 open and pop up to complete the unlocking. The limiting bead 42 is pushed towards the clearance position 54.

[0035] like Figure 5As shown, the key unlocking assembly 2 includes a lock head drive assembly, a lock head clutch shaft 22, a clutch shaft spring 23, and a key lock head 21. The lock head drive assembly and the key lock head 21 are connected inside the lock body 1. The lock head clutch shaft 22 is connected to the key lock head 21, and the clutch shaft spring 23 is located between the lock head clutch shaft 22 and the lock head drive assembly. The lock head drive assembly and the lock head clutch shaft 22 are separated by the clutch shaft spring 23. To unlock, the correct key must be inserted into the key lock head 21 to push and overcome the spring force of the clutch shaft spring 23 and the lock head drive gear 24 to complete the unlocking. When the key is incorrect, the lock cylinder 27 inside the key lock head 21 cannot be properly aligned. In this case, the key lock head 21 and the lock head clutch shaft 22 cannot be pushed inward to overcome the engagement of the clutch shaft spring 23 and the lock head drive gear 24 to complete the unlocking. Thus, even if the key lock head 21 can be turned, the lock cannot be unlocked.

[0036] The lock cylinder drive assembly includes a lock cylinder gear pressure plate 25, a lock cylinder drive gear 24, and a lock cylinder return torsion spring 26. The lock cylinder drive gear 24 is movably connected inside the lock body 1. The lock cylinder gear pressure plate 25 is fixed to the lock body 1 and limits the lock cylinder drive gear 24. One end of the lock cylinder return torsion spring 26 is fixed to the lock cylinder drive gear 24, and the other end is fixed to the lock cylinder gear pressure plate 25. The lock cylinder gear pressure plate 25 is used to fix the lock cylinder drive gear 24 inside the lock body 1 to prevent the lock cylinder drive gear 24 from loosening. The lock cylinder return torsion spring 26 is used to mechanically reset the lock cylinder drive gear 24 after unlocking, so as to complete the unlocking operation in one go. At the same time, it can also make way for the reciprocating shaft dial 6 to reset, and avoid blocking the reset path of the reciprocating shaft dial 6.

[0037] The lock head drive gear 24 is provided with an unlocking protrusion 241, and the lock head clutch shaft 22 is provided with an unlocking groove 221. The lock head drive gear 24 and the lock head clutch shaft 22 are connected through the unlocking protrusion 241 and the unlocking groove 221. When unlocking, the key lock head 21 drives the lock head drive gear 24 to rotate through the lock head clutch shaft 22, and the lock head drive gear 24 is connected to one end of the axle dial 6. After the unlocking groove 221 of the lock head clutch shaft 22 is engaged with the unlocking protrusion 241 of the lock head drive gear 24, the lock head drive gear 24 can be driven to swing by turning the key. One end of the axle dial 6 is located on the swing path of the lock head drive gear 24. When the key lock head 21 is used to unlock, after the unlocking groove 221 and the unlocking protrusion 241 are engaged and the key is turned, the swing of the lock head drive gear 24 will contact one end of the axle dial 6 and push the axle dial 6 to rotate, thereby controlling the rotation of the axle 51 and completing the unlocking action.

[0038] The button-operated unlocking assembly 3 includes a motor dial 31, an unlocking motor 32, and a battery pack 33. The unlocking motor 32 and battery pack 33 are installed inside the lock body 1. The battery pack 33 is connected to the unlocking motor 32, and the output end of the unlocking motor 32 is connected to the motor dial 31. When unlocking, the unlocking motor 32 drives the motor dial 31 to rotate, and the motor dial 31 aligns with the other end of the shaft dial 6. The unlocking motor 32 is a micro motor, and the battery pack 33 is preferably a lithium battery pack 33. The button-operated unlocking assembly 3 also includes a motor pressure plate 34, which fixes the unlocking motor 32 inside the lock body 1 to prevent the unlocking motor 32 from becoming loose. The motor dial 31 has strong magnets 35 installed at both ends. The battery pack 33 is used to power the unlocking motor 32 and control the unlocking motor 32 to rotate via the operation button panel 39 and the circuit board 37. The other end of the shaft dial 6 is located on the rotation path of the motor dial 31. When the unlocking motor 32 drives the motor dial 31 to rotate, it will contact the other end of the shaft dial 6 and push the shaft dial 6 to rotate, thereby controlling the shaft 51 to rotate and completing the unlocking action.

[0039] like Figure 6 , 10 As shown in Figure 11, the button unlocking assembly 3 includes a button panel 39, a button waterproof pad 38, and a circuit board 37. The circuit board 37 is fixed to the lock body 1, and the button waterproof pad 38 covers the circuit board 37. The button waterproof pad 38 has a switch protrusion 381, which corresponds to the tactile switch 372 on the circuit board 37. The button panel 39 covers the button waterproof pad 38. The button waterproof pad 38 provides sufficient sealing for the internal circuit board 37, and the switch protrusion 381 is designed to cooperate with the tactile switch 372 on the circuit board 37 for waterproof sealing. The button panel 39 is the direct operating contact surface, and the operation method of using a physical password button combined with the membrane button panel 39 achieves the high-end effect of touch buttons. The button unlocking assembly 3 also includes a circuit board fixing plate 371. After the circuit board 37 is connected to the circuit board fixing plate 371, it is installed on the lock body 1. The button waterproof pad 38, the circuit board 37, and the circuit board fixing plate 371 constitute the circuit board assembly 36. The button panel 39 is preferably a PVC button board.

[0040] like Figure 7As shown, the smart padlock with multiple unlocking methods combining physical buttons and keys also includes a waterproof pressure plate assembly 7. The waterproof pressure plate assembly 7 is located between the first mounting area 14 and the second mounting area 15. The waterproof pressure plate assembly 7 includes a hinge waterproof pad 71, a hinge waterproof pressure plate 72, and a second bearing 73. The second bearing 73 is connected inside the hinge waterproof pressure plate 72, and the hinge waterproof pad 71 is connected to the hinge waterproof pressure plate 72. One end of the hinge assembly 5 passes through the hinge waterproof pad 71 and the hinge waterproof pressure plate 72 and is connected to the second bearing 73. The first bearing 53 is preferably a deep groove ball bearing. The waterproof pressure plate assembly 7 provides waterproofing to the top of the first mounting area 14 inside the lock body 1. The waterproof pressure plate 72 of the shaft serves to fix the shaft. The waterproof pad 71 of the shaft covers the waterproof pressure plate 72 of the shaft to provide isolation and waterproofing. The second bearing 73 is connected to the shaft 51, so that the shaft 51 can still rotate normally after passing through the waterproof pad 71 and the waterproof pressure plate 72 of the shaft. The waterproof pad 71 of the shaft is provided with a waterproof ring for the shaft 51 to pass through, and the waterproof ring fits the shaft 51, so that sufficient waterproof sealing is also achieved at the connection of the shaft 51.

[0041] like Figure 2 As shown, the smart padlock with multiple unlocking methods combining physical buttons and keys also includes a padlock cover 11, a lock head cover 12, and a waterproof cover 13. The waterproof cover 13 is fitted onto the padlock cover 11, the lock head cover 12 is mounted on the end of the key unlocking component 2 near the keyhole, and the padlock cover 11 is mounted on the bottom of the lock body 1. The waterproof cover 13 is preferably a waterproof silicone cover. After the lock head cover 12 and the padlock cover 11 are respectively mounted on the key lock head 21 and the bottom of the padlock, the waterproof cover 13 acts as a waterproof layer covering the outside of the lock head cover 12 and the padlock cover 11, providing a waterproof effect to the bottom of the lock body 1. At the same time, together with the waterproof pressure plate component 7, it forms a waterproof structure for the first mounting area 14 inside the lock body 1, protecting the internal key unlocking component 2, button unlocking component 3, and pivot wheel 6 structural components.

[0042] The assembly process of each component in this smart padlock, which combines physical buttons with key unlocking for multiple methods, is as follows:

[0043] Padlock assembly process:

[0044] (1) Put the lock beam 4 spring into the lock body 1, then put the lock beam 4 into the lock body 1 as required, then put the Φ6.5 steel ball into the lock body 1, and then install the shaft assembly 5 into the lock body 1 as required.

[0045] (2) Install the waterproof pressure plate assembly 7 into the shaft dial 6, tighten it with M2.5X6 cross-slot countersunk screws 91, and then install the shaft dial 6 into the shaft of the shaft assembly 5 inside the lock body 1 as required.

[0046] (3) Then install the circuit board assembly 36 into the lock body 1 as required, tighten it with M2X4 cross-slot countersunk screws 92, and then attach the padlock PVC button plate.

[0047] (4) Then install the inner shell assembly 8 into the lock body 1 as required, and then simultaneously insert the connecting wires of the micro motor and the lithium battery pack 33, and tighten and fix them with M3X6 cross countersunk screws 93 and M4X6 cross countersunk screws 96.

[0048] (5) Then put the waterproof silicone cover into the padlock cover 11, and then install its components into the lock body 1 as required. Tighten and fix it with M3X6 cross-slot countersunk screws 93 with waterproof glue. Then screw on the lock head cover 12 and cover it with the waterproof silicone cover as required to complete the assembly.

[0049] Assembly process of shaft assembly 5:

[0050] Install the first bearing 53 onto the shaft 51 as required, and then install the shaft return torsion spring 52 onto the shaft 51 as required for later use.

[0051] Waterproof pressure plate assembly 7 assembly process:

[0052] Install the second bearing 73 into the waterproof pressure plate 72 of the shaft as required, and fix it with rivets. Then install the waterproof pad 71 of the shaft onto the waterproof pressure plate 72 of the shaft for later use.

[0053] Circuit board assembly 36 assembly process:

[0054] Install the circuit board 37 fixing block into the circuit board 37 as required, and then install the button waterproof pad 38 into the circuit board 37 for later use.

[0055] Inner shell assembly 8 assembly process:

[0056] (1) Press the D3X3 strong magnet 35 into the motor dial 31 for later use;

[0057] (2) Install the unlocking motor 32 into the inner housing 81, then install the motor pressure plate 34 on the inner housing 81, tighten and fix it with M2X7 cross-slot countersunk screws 94, and then press the motor dial 31 assembly into the output shaft of the unlocking motor 32.

[0058] (3) Put the lock head return torsion spring 26 onto the lock head drive gear 24 as required, and then install it into the inner housing 81 as required. Then install the lock head gear pressure plate 25 into the inner housing 81 as required and tighten it with M2X7 cross-slot countersunk screws 94.

[0059] (4) Insert the lock clutch shaft 22 into the European standard bead key lock 21 as required, then insert the clutch shaft spring 23 into the lock clutch shaft 22, and then insert it into the inner housing 81 as required, and tighten it with M2.5X7.5 cross-slot pan head screws 95.

[0060] (5) Place the battery pack 33 into the inner shell 81 as required, and then place the inner shell waterproof ring 82 into the inner shell 81; the inner shell assembly 8 is ready for use after assembly.

[0061] The working principle of this smart padlock, which combines physical buttons with key-based multi-method unlocking:

[0062] Fingerprint password unlocking principle:

[0063] (1) In the locked state, the user inputs the unlocking command with fingerprint or password on the button panel 39. The output shaft of the unlocking motor 32 rotates 180° clockwise, which drives the motor dial 31 to rotate 180° clockwise. The motor dial 31 rotates 180° clockwise, which drives the shaft dial 6 to rotate 90° counterclockwise, which drives the shaft assembly 5 to rotate 90° counterclockwise. At this time, the clearance position 54 of the shaft 51 is aligned with the limit bead 42. Under the action of the spring force of the lock beam 4, the lock beam 4 is pushed upward to the stop position. While the lock beam 4 moves upward, it pushes the limit bead to the clearance position 54 of the shaft assembly 5, thus unlocking. At this time, the unlocking motor 32 rotates 180° clockwise, pauses for about 5 seconds, and then rotates 180° counterclockwise. The unlocking motor 32 returns to the initial position, completing the unlocking action.

[0064] (2) In the unlocked state, the user aligns the lock beam 4 with the lock hole of the lock body 1 and presses the lock beam 4 down into place. At this time, the return torsion spring 52 causes the axle assembly 5 to rotate 90° clockwise under the action of torque, and the axle assembly 5 returns to its original position. At the same time, it drives the axle dial 6 to return to its original position, thus completing one unlocking and locking cycle.

[0065] Key unlocking principle:

[0066] (1) In the locked state, the user inserts the key, the key pushes the lock head clutch shaft 22, the lock head clutch shaft 22 is connected to the lock head drive gear 24, and at the same time the key rotates 90° clockwise, driving the lock head clutch shaft 22 and the lock head drive gear 24 to rotate 90° clockwise, driving the axle dial 6 to rotate 90° counterclockwise, and simultaneously driving the axle assembly 58 to rotate 90° counterclockwise. At this time, the clearance position 54 of the axle 51 is aligned with the limit bead 42. Under the action of the spring force of the lock beam 4, the lock beam 4 is pushed upward to the stop position. While the lock beam 4 moves upward, it pushes the limit bead 42 to the clearance position 54 of the axle assembly 58, thus unlocking;

[0067] (2) In the unlocked state, the user aligns the lock beam 4 with the lock hole of the lock body 1 and presses the lock beam 4 down into place. At this time, the return spring 52 causes the return spring assembly 5 to rotate 90° clockwise under the action of torque, and the return spring assembly 5 returns to its original position. At the same time, it drives the return spring wheel 6 to its original position. The lock beam 4 is limited by the limit bead 42. After locking, the key is pulled out. Under the action of the spring force of the clutch spring 23, the lock head clutch shaft 22 returns to its original position. At the same time, under the action of the torque of the lock head return spring 26, the lock head drive gear 24 returns to its original position, completing one unlocking and locking cycle.

[0068] The anti-theft mechanical principle of this smart padlock, which combines physical buttons with multiple key unlocking methods, is as follows:

[0069] In this design, the key simultaneously engages the lock cylinder clutch shaft 22 with the lock cylinder drive gear 24. After unlocking, removing the key causes the clutch shaft 22 and lock cylinder drive gear 24 to disconnect under the force of the clutch shaft spring 23. If the correct key is not used, the lock cylinder 27 cannot be properly aligned, preventing the lock cylinder clutch shaft 22 from engaging with the lock cylinder drive gear 24. Even if the lock cylinder 27 can be opened, it will only spin freely and cannot actually open the smart padlock.

[0070] Existing products on the market generally use mechanical keys to directly drive the lock, which has limited anti-theft level. However, this invention uses a clutch to drive the lock while the key is being unlocked, which improves the anti-theft level of the key and achieves a super C-level lock cylinder 27.

[0071] This physical button combines multiple unlocking methods with a waterproof principle:

[0072] (1) Waterproofing principle of fingerprint sensor installation area: The circuit board assembly 36 in this case is fixed to the lock body 1 with M2X4 cross-slot countersunk screws 92, and the button waterproof pad 38 is used to achieve IP68 waterproofing with the lock body 1 and the circuit board 37.

[0073] (2) Waterproofing principle of the installation area of ​​lock beam 4 and shaft assembly 5: In this case, the waterproof pressure plate assembly 7 is fixed to the lock body 1 with M2.5X6 cross-slot countersunk screws 91, and the shaft waterproof gasket 71 achieves IP68 waterproofing with the lock body 1 and the shaft waterproof pressure plate 72; the waterproof ring and the G4 shaft waterproof gasket 71 are designed as an integrated structure, thereby achieving the IP68 waterproofing requirement, such as Figure 9 As shown.

[0074] (3) For other areas, the general waterproofing process can meet the IP68 waterproofing requirements.

[0075] Existing products on the market generally have a waterproof rating of IP65 to IP66 (rain). To achieve an IP67 to IP68 (water immersion) rating, competing products typically use waterproof adhesive, which is prone to defects such as non-repairability and rework. The smart padlock of this invention, however, offers advantages such as IP68 (water immersion) rating, ease of assembly, and convenient maintenance.

[0076] like Figure 11 As shown, in this smart padlock, the physical button combined with the membrane button panel 39 is waterproof.

[0077] Working principle:

[0078] Waterproofing principle of the fingerprint sensor installation area: This case uses the PVC keypad (membrane keypad panel 39) to deform upon touch to press the waterproof pad 38. The waterproof pad 38 presses the tactile switch 372 on the circuit board 37 to transmit user commands.

[0079] Existing products on the market generally use mechanical buttons, while touch buttons are too small and prone to interference, making them generally unsuitable. This design, however, combines physical buttons with a membrane keypad panel (39) to achieve a touch-sensitive appearance.

[0080] This invention covers a smart padlock with a key-operated anti-theft mechanical structure; a smart padlock with an IP68 waterproof structure; and a smart padlock using a combination of physical keypad and membrane keypad panel 39 for key operation. This smart padlock utilizes a key-operated clutch mechanism to achieve key-operated anti-theft functionality. Technical unlocking can only open the lock cylinder, not the smart lock itself, as the clutch is disengaged, thus solving the key anti-theft level issue and achieving a super C-level lock cylinder 27. This smart padlock employs a double-ring waterproof structure with silicone pads, addressing the problem of single waterproof rings not providing complete waterproofing and the inconvenience of using waterproof glue for repairs. It achieves both waterproofing and ease of maintenance, reducing unnecessary costs. The combination of physical keypad and membrane keypad panel 39 results in a simple and elegant appearance with a strong overall design.

[0081] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A smart padlock with entity button combined with key multi-mode unlocking, characterized in that, The lock includes a lock body, a key unlocking assembly, a push-button unlocking assembly, a lock beam, a lock beam elastic element, a tie rod assembly, a tie rod dial, and a limiting bead. The lock body internally includes a first mounting area and a second mounting area, which are sealed and isolated from each other. The key unlocking assembly, the push-button unlocking assembly, and the tie rod dial are installed in the first mounting area, with both ends of the tie rod dial respectively engaging with the key unlocking assembly and the push-button unlocking assembly. The lock beam, the lock beam elastic element, the tie rod assembly, and the limiting bead are installed in the second mounting area. One end of the tie rod assembly is inserted into the first mounting area and connected to the axis of the tie rod dial. One end of the lock beam is connected to the lock body through the lock beam elastic element, and the other end of the lock beam is connected to a keyhole on the lock body. The limiting bead is disposed between the tie rod assembly and the lock beam.

2. The smart lock of claim 1, wherein, The axle assembly includes a first bearing, a axle, and a axle return torsion spring. One end of the axle is connected to the axis of the axle dial, and the other end of the axle is connected to the lock body through the first bearing. The axle return torsion spring is wound around the axle, and one end of the axle return torsion spring is fixed to the axle and the other end is fixed to the lock body.

3. The smart lock of claim 2, wherein, The shaft is provided with a clearance position. When unlocking, the shaft rotates to the clearance position and aligns with the limit bead. When locking, the shaft rotates to the clearance position and is offset from the limit bead.

4. The smart padlock with multiple unlocking methods combining physical buttons and keys according to claim 1, characterized in that, The key unlocking assembly includes a lock head drive assembly, a lock head clutch shaft, a clutch shaft spring, and a key lock head. The lock head drive assembly and the key lock head are connected to the lock body, the lock head clutch shaft is connected to the key lock head, and the clutch shaft spring is disposed between the lock head clutch shaft and the lock head drive assembly.

5. The smart padlock with multiple unlocking methods combining physical buttons and keys according to claim 4, characterized in that, The lock head drive assembly includes a lock head gear pressure plate, a lock head drive gear, and a lock head return torsion spring. The lock head drive gear is movably connected to the lock body. The lock head gear pressure plate is fixed to the lock body and limits the lock head drive gear. One end of the lock head return torsion spring is fixed to the lock head drive gear, and the other end is fixed to the lock head gear pressure plate.

6. The smart padlock with multiple unlocking methods combining physical buttons and keys according to claim 5, characterized in that, The lock head drive gear is provided with an unlocking protrusion, and the lock head clutch shaft is provided with an unlocking groove. The lock head drive gear and the lock head clutch shaft are connected through the unlocking protrusion and the unlocking groove. When unlocking, the key lock head drives the lock head drive gear to rotate through the lock head clutch shaft, and connects the lock head drive gear with one end of the axle dial.

7. The smart padlock with multiple unlocking methods combining physical buttons and keys according to claim 1, characterized in that, The button unlocking assembly includes a motor dial, an unlocking motor, and a battery pack. The unlocking motor and battery pack are installed inside the lock body. The battery pack is connected to the unlocking motor. The output end of the unlocking motor is connected to the motor dial. When unlocking, the unlocking motor drives the motor dial to rotate and aligns the motor dial with the other end of the shaft dial.

8. The smart padlock with multiple unlocking methods combining physical buttons and keys according to claim 1, characterized in that, The button unlocking assembly includes a button panel, a button waterproof pad, and a circuit board. The circuit board is fixed to the lock body, and the button waterproof pad covers the circuit board. The button waterproof pad has a switch protrusion, which corresponds to a tactile switch on the circuit board. The button panel covers the button waterproof pad.

9. The smart padlock with multiple unlocking methods combining physical buttons and keys according to claim 1, characterized in that, It also includes a waterproof pressure plate assembly, which is disposed between the first installation area and the second installation area. The waterproof pressure plate assembly includes a shaft waterproof pad, a shaft waterproof pressure plate, and a second bearing. The second bearing is connected inside the shaft waterproof pressure plate, and the shaft waterproof pad is connected to the shaft waterproof pressure plate. One end of the shaft assembly passes through the shaft waterproof pad and the shaft waterproof pressure plate and is connected to the second bearing.

10. The smart padlock with multiple unlocking methods combining physical buttons and keys according to claim 1, characterized in that, It also includes a padlock cover, a lock cylinder cover, and a waterproof cover. The waterproof cover is fitted onto the padlock cover, the lock cylinder cover is mounted on the end of the key unlocking assembly near the keyhole, and the padlock cover is mounted on the bottom of the lock body.

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