Passive energy storage lock

Abstract

The utility model discloses a passive energy storage lock which comprises a lock body, a lock beam installed on the lock body and a motor installed in the lock body, a circuit board is arranged in the lock body, a controller and an energy storage capacitor are arranged on the circuit board respectively, a coil is installed on the side, away from the energy storage capacitor, of the circuit board, and the coil is connected with the controller. A first spring bolt and a second spring bolt are installed in the lock body in a sliding mode, the first spring bolt and the second spring bolt are attached to each other, a first inclined locking block is arranged at one end of the first spring bolt, and a first fan-shaped part is arranged at the other end of the first spring bolt. Through the arrangement of the first spring bolt, the second spring bolt, the second fan-shaped part and the first fan-shaped part, the unlocking block rotates by 180 degrees towards the same direction during the unlocking action instead of rotating by 90 degrees and then rotating by 90 degrees in the opposite direction for resetting, the rotation inertia does not need to be overcome, the electric quantity required by the motor is reduced, and the cost is reduced. Therefore, the charging time of the coil to the energy storage capacitor is shortened, the unlocking speed is accelerated, and the use experience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of padlocks, in particular to a passive energy storage lock. Background Art

[0002] Passive energy storage locks use sensing when a mobile phone or other NFC-enabled device is close to the lock body to unlock the lock. It does not require wiring or power supply.

[0003] The utility model patent with Chinese patent application number 202020885522.5 discloses a passive NFC anti-mistake padlock, including a lock body with a lock hole, a lock hook connected to the lock body, and a lock tongue arranged in the lock body. When the second lock twist of the utility model is unlocked, it needs to be rotated ninety degrees to reach the unlocked state, and then rotated ninety degrees in the opposite direction to reset, so as to facilitate subsequent locking. Since the reverse rotation also needs to overcome the inertia of the previous rotation, the power required by the driving part increases, which makes the NFC antenna charge the energy storage unit for a longer time, resulting in a longer unlocking time. The user needs to wait for a long time to unlock, and the user experience is poor. Utility Model Content

[0004] The purpose of the utility model is to provide a passive energy storage lock to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a passive energy storage lock, comprising a lock body, a lock beam installed on the lock body, and a motor installed inside the lock body, a circuit board is provided inside the lock body, a controller and an energy storage capacitor are respectively provided on the circuit board, a coil is installed on the side of the circuit board away from the energy storage capacitor, a first lock tongue and a second lock tongue are slidably installed inside the lock body, and the first lock tongue and the second lock tongue are in contact with each other, a first oblique locking block is provided at one end of the first lock tongue, a first fan-shaped portion is provided at the other end of the first lock tongue, a second oblique locking block is provided at one end of the second lock tongue, a second fan-shaped portion is provided at the other end of the second lock tongue, a receiving groove is provided on one side of the second fan-shaped portion, a lock tongue spring is installed between the receiving groove and the load-bearing portion, a load-bearing portion is provided below the first oblique locking block, a first lock groove and a second lock groove are respectively provided on the inner side of the lock beam, and an unlocking block for moving the first lock tongue and the second lock tongue is installed at the output end of the motor.

[0006] As a preferred solution of the utility model, a limiting plate is provided on the outer side of the unlocking block, and a limiting groove matching with the limiting plate is provided inside the lock body.

[0007] As a preferred solution of the utility model, a T-shaped baffle is installed inside the lock body and between the circuit board and the motor, and a buffer foam is provided on one side of the T-shaped baffle.

[0008] As a preferred solution of the utility model, an anti-theft bolt threadedly connected to the lock body is installed on the T-shaped baffle.

[0009] As a preferred solution of the utility model, the internal thread of the lock body is connected with a screw, one end of the lock beam is provided with a connecting portion, and a lock body spring is installed between the connecting portion and the screw.

[0010] As a preferred solution of the utility model, a blocking cover is provided on the outer side of the lock body.

[0011] Compared with the prior art, the beneficial effect of the utility model is that the utility model provides the first lock tongue, the second lock tongue, the second fan-shaped portion and the first fan-shaped portion so that the unlocking block rotates one hundred and eighty degrees in the same direction when performing the unlocking action, instead of rotating ninety degrees and then rotating ninety degrees in the opposite direction for resetting. There is no need to overcome the inertia of rotation, and the required power of the motor is reduced, thereby shortening the charging time of the coil to the energy storage capacitor, accelerating the unlocking speed, and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0013] Figure 2 It is a rear cross-sectional view of the utility model;

[0014] Figure 3 This is a rear view of the utility model after the lock body is removed;

[0015] Figure 4 This is a schematic diagram of the structure of the first lock tongue of the utility model;

[0016] Figure 5 This is a schematic diagram of the structure of the second lock tongue of the utility model;

[0017] Figure 6 This is a schematic diagram of the structure of the unlocking block of the utility model;

[0018] Figure 7 This is a schematic diagram of the structure of the utility model after removing the blocking cover;

[0019] Figure 8 This is a schematic diagram of the structure of the utility model after removing the blocking cover and the circuit board.

[0020] In the figure: 1. lock body; 2. lock beam; 3. blocking cover; 4. first oblique lock block; 5. first lock groove; 6. lock tongue spring; 7. second fan-shaped part; 8. limiting plate; 9. connecting part; 10. lock body spring; 11. screw; 12. unlocking block; 13. second oblique lock block; 14. second lock groove; 15. first fan-shaped part; 16. limiting groove; 17. anti-theft bolt; 18. motor; 19. energy storage capacitor; 20. controller; 21. first lock tongue; 22. circuit board; 23. T-shaped baffle; 24. cushioning foam; 25. load-bearing part; 26. second lock tongue; 27. accommodating groove; 28. coil. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figures 1 to 8The utility model provides a technical solution: a passive energy storage lock, comprising a lock body 1, a lock beam 2 installed on the lock body 1, and a motor 18 installed inside the lock body 1, the motor 18 is used to rotate the unlocking block 12, a circuit board 22 is provided inside the lock body 1, a controller 20 and an energy storage capacitor 19 are provided on the circuit board 22, the controller 20 is used to control the motor 18, and can record the rotation position of the motor 18, so that when the motor 18 rotates, the direction of rotation at the next start is opposite to the direction of rotation last time, so as to avoid the motor 18 from failing to rotate normally and causing the motor 18 to burn out, the energy storage capacitor 19 is used to store electrical energy and supply power to the motor 18, a coil 28 is installed on the side of the circuit board 22 away from the energy storage capacitor 19, and the coil 28 not only The controller 20 and the energy storage capacitor 19 can be powered. At the same time, the controller 20 can communicate with the external NFC device through the coil 28 to confirm the identity of the external NFC device. The first lock tongue 21 and the second lock tongue 26 are slidably installed inside the lock body 1, and the first lock tongue 21 and the second lock tongue 26 are in contact with each other. One end of the first lock tongue 21 is provided with a first oblique locking block 4, and the first oblique locking block 4 cooperates with the first locking groove 5 to lock one side of the lock beam 2. The other end of the first lock tongue 21 is provided with a first fan-shaped portion 15, and the first fan-shaped portion 15 facilitates the unlocking block 12 to push the first lock tongue 21 to move. One end of the second lock tongue 26 is provided with a second oblique locking block 13, and the second oblique locking block 13 cooperates with the second locking groove 14 to lock one side of the lock beam 2. The other end of the lock tongue 26 is provided with a second fan-shaped portion 7, and the second fan-shaped portion 7 facilitates the unlocking block 12 to push the second lock tongue 26 to move. A accommodating groove 27 is provided on one side of the second fan-shaped portion 7, and the accommodating groove 27 is used to limit the lock tongue spring 6 to prevent the lock tongue spring 6 from deviating. A lock tongue spring 6 is installed between the accommodating groove 27 and the load-bearing portion 25, and the lock tongue spring 6 is used to automatically reset the first lock tongue 21 and the second lock tongue 26. A load-bearing portion 25 is provided below the first oblique lock block 4, and the inner side of the lock beam 2 is respectively provided with a first lock groove 5 and a second lock groove 14. An unlocking block 12 for moving the first lock tongue 21 and the second lock tongue 26 is installed at the output end of the motor 18. When unlocking, the unlocking block 12 gradually rotates to ninety degrees. At this time, the long side of the unlocking block 12 is aligned with the first lock tongue 21. In parallel, the unlocking block 12 pushes the second fan-shaped part 7 to make the second locking tongue 26 move to the left, the unlocking block 12 pushes the first fan-shaped part 15 to make the first locking tongue 21 move to the right, and the second locking tongue 26 drives the second oblique locking block 13 to move to the left, and the second oblique locking block 13 is separated from the second locking groove 14, and the first locking tongue 21 drives the first oblique locking block 4 to move to the right, and the first oblique locking block 4 is separated from the first locking groove 5, and the first locking tongue 21 and the second locking tongue 26 move in a direction approaching each other, and the load-bearing part 25 and the second fan-shaped part 7 compress the locking tongue spring 6. At this time, the lock beam 2 is no longer locked. Under the action of the lock body spring 10, the lock beam 2 automatically bounces up, and one end of the lock beam 2 is separated from the lock body 1, and it can be unlocked. The unlocking block 12 will not stop after rotating ninety degrees, and will continue to rotate ninety degrees in the same direction.The short side of the unlocking block 12 is parallel to the first locking tongue 21. At this time, the locking tongue spring 6 is reset and bounced, so that the first locking tongue 21 and the second locking tongue 26 move away from each other, so as to lock the lock beam 2 next time. When the unlocking block 12 is unlocked, it rotates 180 degrees in the same direction, instead of rotating 90 degrees and then rotating 90 degrees in the opposite direction to reset, so there is no need to overcome the inertia of rotation, which reduces the power required by the motor 18, thereby shortening the charging time of the coil 28 to the energy storage capacitor 19, accelerating the unlocking speed, and improving the user experience.

[0023] A limiting plate 8 is disposed on the outer side of the unlocking block 12 , and a limiting groove 16 matched with the limiting plate 8 is disposed inside the lock body 1 . The limiting plate 8 and the limiting groove 16 cooperate to limit the unlocking block 12 .

[0024] Among them, a T-shaped baffle 23 is installed inside the lock body 1 and between the circuit board 22 and the motor 18. The T-shaped baffle 23 is used to block the first lock tongue 21 and the second lock tongue 26 to increase the difficulty of violent lock removal. A buffer foam 24 is provided on one side of the T-shaped baffle 23. The buffer foam 24 is used to buffer the limit plate 8 to reduce the impact on the motor 18, thereby extending the service life of the motor 18.

[0025] The T-shaped baffle plate 23 is provided with an anti-theft bolt 17 threadedly connected to the lock body 1 . The anti-theft bolt 17 makes it difficult for others to disassemble the T-shaped baffle plate 23 , thereby improving safety.

[0026] Among them, the internal thread of the lock body 1 is connected with a screw 11, and one end of the lock beam 2 is provided with a connecting part 9. The screw 11 and the connecting part 9 are used to limit the lock body spring 10 to prevent the lock body spring 10 from shifting. The lock body spring 10 is installed between the connecting part 9 and the screw 11. The lock body spring 10 allows the lock beam 2 to automatically bounce up when unlocked.

[0027] Among them, a blocking cover 3 is provided on the outer side of the lock body 1, and the blocking cover 3 is used to shield the coil 28 and protect the coil 28. An NFC logo can be set on the blocking cover 3 to ensure that the user can place the NCF device in the correct position.

[0028] Specifically, when unlocking, the user puts the mobile phone or other NFC device close to the cover 3, the coil 28 will sense the NFC device and supply power to the controller 20 and the energy storage capacitor 19, the controller 20 communicates with the NFC device through the coil 28 to verify the identity of the NCF device, after the NFC device identity is passed, wait for the energy storage capacitor 19 to store the power required by the motor 18, after the energy storage capacitor 19 is stored, the controller 20 starts the motor 18, the controller 20 will record the rotation position of the motor 18, the motor 18 drives the unlocking block 12 to rotate, and the unlocking block 12 gradually rotates to ninety degrees. At this time, the long side of the unlocking block 12 is parallel to the first locking tongue 21, the unlocking block 12 pushes the second fan-shaped part 7 to make the second locking tongue 26 move to the left, the unlocking block 12 pushes the first fan-shaped part 15 to make the first locking tongue 21 move to the right, the second locking tongue 26 drives the second oblique locking block 13 to move to the left, the second oblique locking block 13 is separated from the second locking groove 14, the first locking tongue 21 drives the first oblique locking block 4 to move to the right, the first oblique locking block 4 is separated from the first locking groove 5, the first locking tongue 21 and the second locking tongue 26 move in a direction close to each other, the bearing part 25 and the second fan-shaped part 7 compress the locking tongue spring 6, and the locking tongue spring 6 is compressed. When the lock beam 2 is no longer locked, the lock beam 2 automatically bounces up under the action of the lock body spring 10, and one end of the lock beam 2 is separated from the lock body 1, which can be unlocked. The unlocking block 12 will not stop after rotating ninety degrees, and will continue to rotate ninety degrees in the same direction, so that the short side of the unlocking block 12 is parallel to the first locking tongue 21, and the second fan-shaped portion 7 and the first fan-shaped portion 15 are no longer blocked by the long side of the unlocking block 12. At this time, the lock tongue spring 6 is reset and bounced open, so that the first locking tongue 21 and the second locking tongue 26 move in a direction away from each other, so as to lock the lock beam 2 next time. When locking, one end of the lock beam 2 is aligned with the first locking tongue 21. The quasi-lock body 1 presses the lock beam 2 downward. When the first lock groove 5 is aligned with the first oblique lock block 4 and the second lock groove 14 is aligned with the second oblique lock block 13, under the action of the lock tongue spring 6, the first oblique lock block 4 will automatically snap into the first lock groove 5, and the second oblique lock block 13 will automatically snap into the second lock groove 14 to lock the lock beam 2. When unlocking again, since the controller 20 records the rotation position of the motor 18 when unlocking last time, the controller 20 will rotate the motor 18 one hundred and eighty degrees in the opposite direction of the last time to avoid the motor 18 failing to rotate normally and causing the motor 18 to burn out.

[0029] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and 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.

[0030] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0031] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A passive energy storage lock, comprising a lock body (1), a lock beam (2) mounted on the lock body (1), and a motor (18) mounted inside the lock body (1), wherein a circuit board (22) is arranged inside the lock body (1), a controller (20) and an energy storage capacitor (19) are arranged on the circuit board (22), and a coil (28) is installed on a side of the circuit board (22) away from the energy storage capacitor (19), characterized in that: A first locking tongue (21) and a second locking tongue (26) are slidably mounted inside the lock body (1), and the first locking tongue (21) and the second locking tongue (26) are fitted with each other, a first oblique locking block (4) is arranged at one end of the first locking tongue (21), a first fan-shaped portion (15) is arranged at the other end of the first locking tongue (21), a second oblique locking block (13) is arranged at one end of the second locking tongue (26), a second fan-shaped portion (7) is arranged at the other end of the second locking tongue (26), a receiving groove (27) is arranged on one side of the second fan-shaped portion (7), a locking tongue spring (6) is arranged between the receiving groove (27) and the load-bearing portion (25), a load-bearing portion (25) is arranged below the first oblique locking block (4), a first locking groove (5) and a second locking groove (14) are respectively arranged on the inner side of the locking beam (2), and an unlocking block (12) for moving the first locking tongue (21) and the second locking tongue (26) is arranged at the output end of the motor (18).

2. The passive energy storage lock according to claim 1, characterized in that: A limiting plate (8) is provided on the outer side of the unlocking block (12), and a limiting groove (16) matching with the limiting plate (8) is provided inside the lock body (1).

3. The passive energy storage lock according to claim 1, characterized in that: A T-shaped baffle (23) is installed inside the lock body (1) and between the circuit board (22) and the motor (18), and a buffer foam (24) is provided on one side of the T-shaped baffle (23).

4. The passive energy storage lock according to claim 3, characterized in that: The T-shaped baffle (23) is provided with an anti-theft bolt (17) threadedly connected to the lock body (1).

5. The passive energy storage lock according to claim 1, characterized in that: The internal thread of the lock body (1) is connected with a screw (11), one end of the lock beam (2) is provided with a connecting portion (9), and a lock body spring (10) is installed between the connecting portion (9) and the screw (11).

6. The passive energy storage lock according to claim 1, characterized in that: A blocking cover (3) is provided on the outer side of the lock body (1).

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