NB-IoT-based high-precision intelligent lock

Abstract

The utility model discloses a high-precision intelligent lock based on NB-IoT, which belongs to the technical field of intelligent locks, comprises an outer shell and an inner shell, and is characterized in that an upper box, a middle box and a lower box are sequentially and fixedly arranged at the rear part of the outer shell from top to bottom, a bolt is arranged in the inner shell, the bolt is in threaded connection with the inner shell and the upper box, a clamping block is arranged in the middle box, and the lower box is in threaded connection with the upper box. A locking block is arranged in the lower box, connecting pipes are symmetrically and fixedly arranged in the shell, a mainboard is arranged in the shell, the mainboard is connected with the connecting pipes in a sleeving mode, connectors are arranged in the connecting pipes, nuts are arranged on the upper portions of the connectors, and an NB-IoT module and a non-magnetic sensor are fixedly arranged on the front portion of the mainboard. According to the intelligent lock, a user can obtain the opening and closing state of the intelligent lock in real time, and meanwhile the situation that the data transmission precision is reduced due to vibration generated when the door is closed all the year round is effectively relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of smart locks, and specifically to a high-precision smart lock based on NB-IoT. Background Art

[0002] NB-IoT is a low-power wide area network technology suitable for cellular data connections of low-power devices in wide area networks. It has broad application prospects. For example, in smart home security systems, monitoring the switch status of door locks is an important part of the system. Common smart locks are more convenient and safer to open and close. They can be locked by closing the door and unlocked by successful fingerprint / face verification. However, it does not involve NB-IoT technology, and users cannot obtain the switch status of the lock in real time. If the NB-IoT module is directly integrated on the motherboard inside the lock, the vibration when closing the door over the years can easily cause poor contact between the NB-IoT module and the motherboard, ultimately resulting in reduced data transmission accuracy. Based on this situation, how to enable users to obtain the switch status of the smart lock in real time while reducing the reduction in data transmission accuracy caused by the vibration when closing the door over the years is becoming an increasingly urgent problem that relevant technical personnel need to solve. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a high-precision smart lock based on NB-IoT.

[0004] A high-precision smart lock based on NB-IoT, comprising an outer shell and an inner shell, characterized in that an upper box, a middle box, and a lower box are fixedly arranged on the rear of the outer shell in sequence from top to bottom, a bolt is arranged inside the inner shell, and the bolt is threadedly connected to the inner shell and the upper box, a clamping block is arranged inside the middle box, a locking block is arranged inside the lower box, connecting pipes are symmetrically fixed inside the outer shell, a mainboard is arranged inside the outer shell, the mainboard is socketed with the connecting pipe, a connector is arranged inside the connecting pipe, a nut is arranged on the top of the connector, and an NB-IoT module and a non-magnetic sensor are fixed on the front of the mainboard.

[0005] Furthermore, the connector includes an internal threaded portion and an external threaded portion, the internal threaded portion is threadedly connected to the connecting pipe, and the nut is threadedly connected to the external threaded portion.

[0006] Furthermore, a front washer is provided at the front of the main board, and a rear washer is provided at the rear of the main board. The front washer and the rear washer are both sleeved on the periphery of the connecting pipe. The nut is fitted with the front washer, the front washer and the rear washer are both fitted with the main board, and the rear washer is fitted with the outer shell.

[0007] Furthermore, rubber pads are fixedly provided on the rear portion of the outer shell and the front portion of the inner shell.

[0008] Furthermore, a camera is fixedly arranged on the front of the housing, and a screen is fixedly arranged below the camera. The camera and the screen are both electrically connected to the mainboard.

[0009] Furthermore, an outer handle is rotatably provided at the front of the outer shell, and an inner handle is rotatably provided at the rear of the inner shell. Both the outer handle and the inner handle are connected to the card block. A fingerprint identifier is provided at one end of the outer handle and the inner handle close to the card block, and the fingerprint identifier is electrically connected to the mainboard.

[0010] The beneficial effects of the high-precision smart lock based on NB-IoT of the utility model are:

[0011] 1. The NB-IoT module enables users to obtain the on / off status of the smart lock in real time. The non-magnetic sensor, which can detect magnetic field changes without relying on magnetic materials, provides a good structural foundation for detecting the on / off status of the smart lock or participating in unlocking as part of identity verification.

[0012] 2. The nut fits snugly against the front washer, and both the front and rear washers fit snugly against the mainboard. The rear washer fits snugly against the outer shell, effectively buffering the vibrations from closing the door that could cause poor contact between the NB-IoT module, non-magnetic sensor, and mainboard over time. Simply fitting the rubber pad to the door effectively ensures the shock absorption effect of the outer and inner shells as a whole, further preventing poor contact between the NB-IoT module, non-magnetic sensor, and mainboard. This effectively reduces the degradation of data transmission accuracy caused by the vibrations from closing the door over time.

[0013] 3. Simply remove the nuts and connectors in sequence to disassemble the motherboard and perform necessary maintenance. Simply tighten the connectors and nuts in sequence to secure the motherboard securely, effectively ensuring ease of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art, but this does not limit the scope of protection of the present invention.

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

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

[0017] Figure 3 for Figure 2 A partial enlarged view of point A in the middle;

[0018] Figure 4 This is a bottom view of the mainboard of the present invention (electronic components are not shown);

[0019] Figure 5 for Figure 4 A partial enlarged view of point B in the middle;

[0020] Figure 6 It is a left-side structural schematic diagram of the present invention.

[0021] Among them, 1-camera, 2-screen, 3-fingerprint reader, 4-housing, 5-external handle, 6-mainboard, 7-nut, 8-connector, 9-front washer, 10-rear washer, 11-inner thread part, 12-connecting pipe, 13-external thread part, 14-inner shell, 15-rubber pad, 16-bolt, 17-middle box, 18-inner handle, 19-lower box, 20-lock block, 21-card block, 22-upper box, 23-non-magnetic sensor, 24-NB-IoT module. DETAILED DESCRIPTION

[0022] To make the description clearer, the utility model is further described in conjunction with the drawings of the specification, which are a high-precision smart lock based on NB-IoT.

[0023] A high-precision smart lock based on NB-IoT, comprising an outer shell 4 and an inner shell 14, characterized in that: an upper box 22, a middle box 17, and a lower box 19 are fixedly arranged on the rear part of the outer shell 4 from top to bottom in sequence, a bolt 16 is arranged inside the inner shell 14, and the bolt 16 is threadedly connected to the inner shell 14 and the upper box 22, a clamping block 21 is arranged inside the middle box 17, and a locking block 20 is arranged inside the lower box 19, a connecting pipe 12 is symmetrically fixed inside the outer shell 4, a main board 6 is arranged inside the outer shell 4, the main board 6 is socketed with the connecting pipe 12, a connector 8 is arranged inside the connecting pipe 12, a nut 7 is arranged on the upper part of the connector 8, and an NB-IoT module 24 and a non-magnetic sensor 23 are fixed on the front of the main board 6.

[0024] Furthermore, the connector 8 includes an internal threaded portion 11 and an external threaded portion 13 . The internal threaded portion 11 is threadedly connected to the connecting pipe 12 , and the nut 7 is threadedly connected to the external threaded portion 13 .

[0025] Furthermore, a front gasket 9 is provided at the front of the main board 6, and a rear gasket 10 is provided at the rear of the main board 6. The front gasket 9 and the rear gasket 10 are both sleeved on the outer periphery of the connecting pipe 12. The nut 7 is fitted with the front gasket 9, and the front gasket 9 and the rear gasket 10 are both fitted with the main board 6. The rear gasket 10 is fitted with the outer shell 4.

[0026] Furthermore, rubber pads 15 are fixedly provided on the rear of the outer shell 4 and the front of the inner shell 14 .

[0027] Furthermore, a camera 1 is fixedly arranged on the front of the housing 4 , and a screen 2 is fixedly arranged below the camera 1 . Both the camera 1 and the screen 2 are electrically connected to the mainboard 6 .

[0028] Furthermore, an outer handle 5 is rotatably provided at the front of the outer shell 4, and an inner handle 18 is rotatably provided at the rear of the inner shell 14. The outer handle 5 and the inner handle 18 are both connected to the card block 21. A fingerprint identifier 3 is provided at one end of the outer handle 5 and the inner handle 18 close to the card block 21, and the fingerprint identifier 3 is electrically connected to the mainboard 6.

[0029] The working principle of a high-precision smart lock based on NB-IoT of the present invention is as follows: place the outer shell 4 in the installation position outside the door, make the upper box 22, the middle box 17, and the lower box 19 inside the door, place the inner shell 14 in the installation position inside the door, tighten the bolt 16 until the rubber pad 15 at the rear of the outer shell 4 and the front of the inner shell 14 are in contact with the door, and fix the matching cover of the inner shell 14 to complete the installation of the smart lock. In the initial state, the door is closed, the card block 21 and the lock block 20 are extended, the lock block 20 is in the locked state, the user stands outside the door, the camera 1 reads the user's face, or fingerprint recognition After the device 3 reads the user's fingerprint and verifies it, it detects the change in magnetic field in combination with the non-magnetic sensor 23, and the main board 6 controls the internal structure of the lower box 19, such as the motor and transmission structure, to retract the lock block 20. The user holds the outer handle 5 and turns it, and the internal structure of the middle box 17 drives the card block 21 to move and retract it. At this time, the door can be opened. If the user himself attempts to open this smart lock, the camera 1 and the fingerprint identifier 3 cannot verify the identity, so the door cannot be unlocked. The NB-IoT module 24 transmits the information of the unlocking failure to the user's smart device, such as a smartphone, and the user can perform further processing, such as alarming.

[0030] The above are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited to them. Any changes or substitutions that do not require creative work should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection defined in the claims.

Claims

1. A high-precision smart lock based on NB-IoT, comprising an outer shell and an inner shell, characterized in that: An upper box, a middle box, and a lower box are fixedly arranged on the rear part of the outer shell in sequence from top to bottom, a bolt is arranged inside the inner shell, and the bolt is threadedly connected to the inner shell and the upper box, a clamping block is arranged inside the middle box, and a locking block is arranged inside the lower box, connecting pipes are symmetrically fixed inside the outer shell, a mainboard is arranged inside the outer shell, the mainboard is socketed with the connecting pipe, a connector is arranged inside the connecting pipe, a nut is arranged on the upper part of the connector, and an NB-IoT module and a non-magnetic sensor are fixed on the front of the mainboard.

2. A high-precision smart lock based on NB-IoT according to claim 1, characterized in that: The connector includes an internal threaded portion and an external threaded portion. The internal threaded portion is threadedly connected to the connecting pipe, and the nut is threadedly connected to the external threaded portion.

3. The high-precision smart lock based on NB-IoT according to claim 1, characterized in that: A front washer is provided at the front of the main board, and a rear washer is provided at the rear of the main board. The front washer and the rear washer are both sleeved on the periphery of the connecting pipe. The nut is fitted with the front washer, and the front washer and the rear washer are both fitted with the main board. The rear washer is fitted with the outer shell.

4. The high-precision smart lock based on NB-IoT according to claim 1, characterized in that: The rear part of the outer shell and the front part of the inner shell are both fixedly provided with rubber pads.

5. The high-precision smart lock based on NB-IoT according to claim 1, characterized in that: A camera is fixedly arranged at the front of the shell, and a screen is fixedly arranged below the camera. Both the camera and the screen are electrically connected to the mainboard.

6. The high-precision smart lock based on NB-IoT according to claim 1, characterized in that: An outer handle is rotatably provided at the front of the outer shell, and an inner handle is rotatably provided at the rear of the inner shell. Both the outer handle and the inner handle are connected to the card block. A fingerprint identifier is provided at one end of the outer handle and the inner handle close to the card block, and the fingerprint identifier is electrically connected to the mainboard.

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