NFC intelligent lock

Abstract

The NFC intelligent lock comprises a lock body and a lock head, an external positioning sleeve is installed at the top of the left end of the lock body, the bottom of the left end of the lock head penetrates through the external positioning sleeve to be inserted into a slot in the left end of the lock body, a spring is arranged in the slot, and the top of the spring bypasses a bottom plate to be connected to the bottom of a lock beam at the left end of the lock head. The top of the bottom plate is fixed to the bottom side of the lock head, the right side of a lock beam at the left end of the lock head is connected with the left side of a limiting rod in an attached mode, the limiting rod is installed in the right side of the middle end of the inserting groove, a motor is installed in the middle end of the lock body, and the output end of the motor is fixedly connected with the interior of a shifting wheel. Steel balls are arranged in transverse hole grooves in the two sides of the switch lock gear, one side, located on the right side of the switch lock gear, of the steel ball is connected with the left side of the lock beam at the right end of the lock head in an attached mode, the lock is simpler and safer by means of an emerging NFC technology at present, and the use convenience and safety of people are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of smart locks, and in particular to an NFC smart lock. Background Art

[0002] NFC smart lock is a smart lock that uses near-field communication technology to realize the unlocking function. Users can unlock the door lock through mobile phones or other NFC devices, providing convenience and security.

[0003] The locks on the market have low security and require keys to open. There is an urgent need to use the emerging NFC technology to make locks more convenient and safer, and improve the convenience and safety of people's use. Therefore, an NFC smart lock is proposed to address the above problems. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] An NFC smart lock comprises a lock body and a lock head, wherein an external positioning sleeve is installed on the top of the left end of the lock body, and the bottom of the left end of the lock head passes through the external positioning sleeve and is inserted into a slot on the left end of the lock body, and a spring is arranged inside the slot, and the top of the spring bypasses a bottom plate and is connected to the bottom of a lock beam on the left end of the lock head, and the top of the bottom plate is fixed to the bottom side of the lock head, and the right side of the lock beam on the left end of the lock head is fitted and connected to the left side of a limiting rod, and the limiting rod is installed inside the right side of the middle end of the slot;

[0006] An NFC control module is provided inside the right end of the lock body, and a motor is installed inside the middle end of the lock body. The output end of the motor is fixedly connected to the inside of the dial wheel, and the side surface of the dial wheel is meshed with the side surface of the gear at the bottom end of the switch lock gear. Steel balls are provided in the horizontal holes on both sides of the switch lock gear. One side of the steel ball on the right side of the switch lock gear is fit-connected to the left side of the lock beam at the right end of the lock head, and one side of the steel ball on the left side of the switch lock gear is fit-connected to the left side of the lock beam at the right end of the lock head.

[0007] Preferably, a first fixing opening is provided on the right side of the middle end of the lock beam at the left end of the lock head, and a second fixing opening is provided on the left side of the middle end of the lock beam at the right end of the lock head, and the first fixing opening and the second fixing opening are located at the same height.

[0008] Preferably, both ends of the switch lock gear are provided with fixing grooves.

[0009] Preferably, the number of the steel balls is plural, two steel balls are arranged in the left transverse groove of the switch lock gear, and one steel ball is arranged in the right transverse groove of the switch lock gear.

[0010] Preferably, the right half end of the limiting rod is installed inside the groove of the right wall of the slot, and the top side of the left half end of the limiting rod is fitted and connected with the bottom side of the protrusion below the first fixing port.

[0011] Preferably, a detachable cover is provided on the front side of the lock body.

[0012] Preferably, an NFC control module is provided inside the right end of the lock body, and the NFC control module includes a main control board, an NFC transceiver board and an NFC card. The NFC transceiver board is installed on the main control board, the NFC transceiver board and the NFC card are connected through signals, the main control board and the NFC transceiver board are connected through a control line, and the motor and the main control board are connected through a circuit line.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) After the NFC transceiver board of the device receives the signal of the NFC card, it will transmit the received data to the main control board, and the main control board controls the operation of the motor, which drives the dial wheel to rotate. The dial wheel rotates the switch lock gear to an angle, and the fixed groove on the switch lock gear gives way to the steel ball. The first fixed port and the second fixed port on the lock beam no longer have the steel ball stuck in the position. The lock beam of the lock head is popped out under the action of the spring to unlock the lock, thereby improving the safety and convenience of people's use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the lock tongue of the utility model;

[0018] Figure 4 This is a schematic diagram of the three-dimensional structure of the switch lock gear of the utility model;

[0019] Figure 5 It is a schematic diagram of the three-dimensional structure of the thumbwheel of the utility model.

[0020] Explanation of the reference numerals in the figure: lock body 1, lock head 2, motor 3, dial wheel 4, switch lock gear 5, steel ball 6, external positioning sleeve 8, spring 9, limit rod 10, slot 11, NFC control module 12, first fixing port 21, second fixing port 22, bottom plate 23, fixing groove 51, removable cover plate 101. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of 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] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] See also Figure 1-5 , the utility model provides an embodiment: an NFC smart lock, including a lock body 1 and a lock head 2, an external positioning sleeve 8 is installed on the top of the left end of the lock body 1, and the bottom of the left end of the lock head 2 passes through the external positioning sleeve 8 and is inserted into the slot 11 at the left end of the lock body 1, and the left end of the lock head 2 can move inside the slot 11, and a spring 9 is arranged inside the slot 11, and the spring 9 can drive the lock head 2 to rise, and the top of the spring 9 bypasses the bottom plate 23 and is connected to the bottom of the lock beam at the left end of the lock head 2, and the spring 9 can better push the lock head 2 to rise through the bottom plate 23, and the top of the bottom plate 23 is fixed to the bottom side of the lock head 2, and the right side of the lock beam at the left end of the lock head 2 is closely connected with the left side of the limit rod 10, and the limit rod 10 is installed inside the right side of the middle end of the slot 11;

[0024] An NFC control module 12 is provided inside the right end of the lock body 1, and a motor 3 is installed inside the middle end of the lock body 1. The output end of the motor 3 is fixedly connected to the inside of the dial wheel 4, and the motor 3 can drive the dial wheel 4 to rotate. The side of the dial wheel 4 is meshed with the side of the gear at the bottom end of the switch lock gear 5, and the dial wheel 4 can drive the switch lock gear 5 to rotate. Steel balls 6 are provided in the transverse holes on both sides of the switch lock gear 5. One side of the steel ball 6 located on the right side of the switch lock gear 5 is fitted and connected to the left side of the lock beam at the right end of the lock head 2, and one side of the steel ball 6 located on the left side of the switch lock gear 5 is fitted and connected to the left side of the lock beam at the right end of the lock head 2. A first fixed opening 21 is provided on the right side of the middle end of the lock beam at the left end of the lock head 2, and a second fixed opening 22 is provided on the left side of the middle end of the lock beam at the right end of the lock head 2. The first fixed opening 21 and the second fixed opening 22 are located at the same height. When locked, the steel ball 6 will be stuck in the first fixed opening 21 and the second fixed opening 22.

[0025] Both ends of the switch lock gear 5 are provided with fixed grooves 51. When the switch lock gear 5 rotates an angle, the fixed grooves 51 on the switch lock gear 5 will give way to the steel balls 6. The number of steel balls 6 is plural. Two steel balls 6 are provided in the left transverse groove of the switch lock gear 5, and one steel ball 6 is provided in the right transverse groove of the switch lock gear 5. When the fixed grooves 51 of the switch lock gear 5 do not give way to the steel balls 6, the first fixed port 21 and the second fixed port 22 are supported by three steel balls 6. This state is the locked state. The right half end of the limit rod 10 is installed in the groove on the right wall of the slot 11. When the top side of the left half end of the limit rod 10 is fitted and connected with the bottom side of the protrusion below the first fixed port 21 When the lock beam of the lock head 2 is in the lowest position and can be locked in the slot 11, a removable cover 101 is provided on the front side of the lock body 1, and the removable cover 101 can be removed and can be removed to repair the inside of the lock body 1. The NFC control module 12 includes a main control board, an NFC transceiver board and an NFC card. The NFC transceiver board is installed on the main control board, the NFC transceiver board is connected to the NFC card through signals, the main control board is connected to the NFC transceiver board through control lines, and the motor is connected to the main control board through circuit lines. After receiving the signal from the NFC card, the NFC transceiver board will transmit the received data to the main control board, and the main control board controls the operation of the motor.

[0026] When in use, the control module receives the signal from the NFC card or the wireless signal receiving module, and controls the motor 3 to run through the driving module. The motor 3 drives the dial wheel 4 to rotate, and the dial wheel 4 rotates the switch lock gear 5 through an angle. The fixed groove 51 on the switch lock gear 5 gives way to the steel ball 6, and the first fixed port 21 and the second fixed port 22 on the lock beam no longer have the steel ball 6 stuck in the position. The lock beam of the lock head 2 is popped out under the action of the spring 9 to unlock the lock, thereby improving the safety and convenience of people's use.

[0027] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. An NFC smart lock, characterized by: The invention comprises a lock body (1) and a lock head (2), wherein the top of the left end of the lock body (1) is provided with an external positioning sleeve (8), the bottom of the left end of the lock head (2) passes through the external positioning sleeve (8) and is inserted into a slot (11) at the left end of the lock body (1), a spring (9) is arranged inside the slot (11), the top of the spring (9) bypasses a bottom plate (23) and is connected to the bottom of a lock beam at the left end of the lock head (2), the top of the bottom plate (23) is fixed to the bottom side of the lock head (2), the right side of the lock beam at the left end of the lock head (2) is closely connected to the left side of a limiting rod (10), and the limiting rod (10) is installed inside the right side of the middle end of the slot (11); An NFC control module (12) is provided inside the right end of the lock body (1), a motor (3) is provided inside the middle end of the lock body (1), an output end of the motor (3) is fixedly connected to the inside of the dial wheel (4), a side surface of the dial wheel (4) is meshed with a side surface of a gear at the bottom end of a switch lock gear (5), steel balls (6) are provided in the transverse holes on both sides of the switch lock gear (5), one side of the steel ball (6) located on the right side of the switch lock gear (5) is fitted and connected to the left side of a lock beam at the right end of the lock head (2), and one side of the steel ball (6) located on the left side of the switch lock gear (5) is fitted and connected to the left side of a lock beam at the right end of the lock head (2).

2. The NFC smart lock according to claim 1, characterized in that: A first fixing opening (21) is provided on the right side of the middle end of the locking beam at the left end of the lock head (2), and a second fixing opening (22) is provided on the left side of the middle end of the locking beam at the right end of the lock head (2), wherein the first fixing opening (21) and the second fixing opening (22) are located at the same height.

3. The NFC smart lock according to claim 1, characterized in that: Both ends of the switch lock gear (5) are provided with fixing grooves (51).

4. The NFC smart lock according to claim 1, characterized in that: The number of the steel balls (6) is plural, two steel balls (6) are arranged in the left transverse groove of the switch lock gear (5), and one steel ball (6) is arranged in the right transverse groove of the switch lock gear (5).

5. The NFC smart lock according to claim 1, characterized in that: The right half of the limiting rod (10) is installed in the groove of the right wall of the slot (11), and the top side of the left half of the limiting rod (10) is fitted and connected to the bottom side of the protrusion below the first fixing opening (21).

6. The NFC smart lock according to claim 1, characterized in that: A detachable cover plate (101) is provided on the front side of the lock body (1).

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