NB-IoT (Narrow Band Internet of Things) intelligent instrument communication module

Abstract

The utility model belongs to the technical field of intelligent instrument communication modules, and particularly discloses an NB-IoT (Narrow Band Internet of Things) intelligent instrument communication module which comprises a protective shell, the surface of a protective shell fixing screw is in threaded connection with the interior of a threaded groove, and the interior of a wiring groove is fixedly connected with a wiring board. Four first null line grooves, second null line grooves, first live line grooves and second live line grooves are formed in the front side of the wiring board, wiring blocks are fixedly connected in the first null line grooves, the second null line grooves, the first live line grooves and the second live line grooves, and wire clamping screws extending to the front sides of the wiring blocks are in threaded connection in the wiring blocks; and the interiors of the first null line groove, the second null line groove, the first live wire groove and the second live wire groove are fixedly connected with the wire fixing blocks to prevent the wire from sliding, so that the phenomenon that the wire located in the wiring block falls off from the interior of the wiring block due to loosening of the wire clamping screws after a long time is reduced, and the device has higher reliability and practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent meter communication modules, in particular to an NB-IoT Internet of Things intelligent meter communication module. Background Art

[0002] NB-IoT refers to narrowband Internet of Things technology, which is a low-power wide-area network technology standard based on cellular technology. It is used to connect various smart sensors and devices using wireless cellular networks. It focuses on the low-power and wide-coverage Internet of Things market and is an emerging technology that can be widely used worldwide.

[0003] When using some existing NB-IoT Internet of Things smart meters, first open the protective cover at the connection point, then connect the wires to the terminal, and then turn the screws on the terminal to make the wires stuck inside the terminal, thereby realizing power transmission. However, the screws on the terminal may loosen over time, causing the wires to fall off from the inside of the terminal. Since some existing NB-IoT Internet of Things smart meters are not equipped with a wire anti-falling structure, the screws on the terminal may loosen over time, causing the wires to fall off or loosen, which will cause power outages or poor contact of the wires, resulting in users being unable to use electricity for a certain period of time, reducing the practicality and reliability of the device. Utility Model Content

[0004] The purpose of the utility model is to provide an NB-IoT Internet of Things smart meter communication module 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: an NB-IoT Internet of Things smart meter communication module, comprising a smart meter, a wiring slot is provided on the front side of the smart meter, a detachable protective shell is arranged on the wiring slot, two fixing plates are fixedly connected inside the wiring slot, threaded slots are provided on the opposite sides of the two fixing plates, the left and right sides of the protective shell are threadedly connected with protective shell fixing screws, the surface of the protective shell fixing screws is threadedly connected with the inner thread of the threaded slot, a wiring board is fixedly connected inside the wiring slot, and four first neutral line slots, a second neutral line slot, a first live line slot, and a second live line slot are provided on the front side of the wiring board. The live wire slot, the first neutral wire slot, the second neutral wire slot, the first live wire slot and the second live wire slot are all fixedly connected with wiring blocks, the internal threads of the wiring blocks are connected with wire clamping screws extending to the front side of the wiring blocks, the first neutral wire slot, the second neutral wire slot, the first live wire slot and the second live wire slot are all fixedly connected with wire fixing blocks, two wire fixing block slide grooves connected to the right side are provided on the left side of the wire fixing block, the interiors of the two wire fixing block slide grooves are slidably connected with the surfaces of the two driving plates, two extrusion block grooves connected to the interior of the wire fixing slots are provided on the side of the two wire fixing block slide grooves close to the wire fixing slots, and the extrusion block grooves are provided with wire anti-falling devices.

[0006] Preferably, a wire threading groove connected to the first neutral wire groove, the second neutral wire groove, the first live wire groove, and the second live wire groove is formed on the lower surface of the wiring board.

[0007] Preferably, a wire fixing groove communicating with the inside of the wire threading groove is formed on the upper surface of the wire fixing block.

[0008] Preferably, two first driving plate slide grooves connected to the interior of the first live wire groove are opened on the left side inside the second neutral wire groove, two second driving plate slide grooves connected to the interior of the first neutral wire groove are opened on the right side inside the second neutral wire groove, and two second driving plate slide grooves connected to the interior of the first live wire groove are also opened on the right side inside the second live wire groove.

[0009] Preferably, the internal rotation of the first driving plate slot on the rear side is connected with a rotating rod which passes through the first driving plate slot on the front side and extends to the front side of the terminal board. The surface of the rotating rod is provided with two sections of opposite threads. The two sections of opposite threads on the rotating rod are respectively located inside the two first driving plate slots. The rotating rod passes through one end of the front side of the terminal board and is fixedly connected with a rotating disk.

[0010] Preferably, the interiors of the two first driving plate slots are slidably connected with driving plates, the surfaces of the driving plates are slidably connected to the interiors of the second driving plate slots, and the two driving plates are respectively threadedly sleeved on two sections of reverse threads on the surface of the rotating rod.

[0011] Preferably, the wire anti-falling device includes an extrusion block, which is slidably connected to the inside of the extrusion block groove, and the sides of the two extrusion blocks close to the two wire fixing block slide grooves are fixedly connected to the surfaces of the two driving plates, and the opposite sides of the two extrusion blocks are fixedly connected with protruding plates, and the side away from the protruding plate is arc-shaped.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: 1. When the NB-IoT Internet of Things smart meter communication module is in use, the connecting end of the wire is inserted into the interior of the wiring block, and the wire clamping screw is rotated to clamp the wire inside the wiring block for power transmission. At this time, the staff rotates the rotating disk to make the rotating disk drive the rotating rod to rotate inside the two first driving plate slide grooves, so that the two driving plates on the two sections of reverse threads on the surface of the rotating rod move relative to each other, so that the two driving plates drive the two extrusion blocks to move closer to the interior of the fixed wire groove inside the two extrusion block grooves, so that the surface of the wire inside the fixed wire groove is clamped by the protruding plate, and the protruding plate plays a role in clamping the surface of the wire to prevent the wire from sliding, thereby reducing the wire inside the wiring block from falling off from the inside of the wiring block due to the loosening of the wire clamping screw after a long time, making the device more reliable and practical.

[0013] 2. When the NB-IoT Internet of Things smart meter communication module is in use, the staff rotates the rotating disk, so that the rotating disk drives the rotating rod to rotate inside the two first driving plate slide grooves, so that the two driving plates with two threads sleeved on the two sections of reverse threads on the surface of the rotating rod move relatively, so that the two driving plates drive the two extrusion blocks inside the two extrusion block grooves to move closer to the inside of the fixed wire groove, so that the surface of the wire inside the fixed wire groove is clamped by the protruding plate, so that the staff can fix the wires in multiple fixed wire grooves by only rotating the rotating disk, making the operation of the device faster. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of a NB-IoT Internet of Things smart meter communication module of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the intelligent instrument of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the wiring board of the utility model;

[0017] Figure 4 It is a schematic diagram of the structure of the cross-section of the wiring board of the utility model;

[0018] Figure 5 It is a schematic structural diagram of a cross-section of a wire fixing block of the utility model;

[0019] Figure 6 For this utility model Figure 5 A is a schematic diagram of the enlarged structure.

[0020] In the figure: 1. smart meter; 2. protective shell; 3. wiring slot; 4. fixing plate; 5. fixing screw of protective shell; 6. threaded slot; 7. wiring board; 8. first neutral slot; 9. second neutral slot; 10. first live slot; 11. second live slot; 12. fixed wire block; 13. wiring block; 14. wire clamping screw; 15. fixed wire slot; 16. rotating disk; 17. rotating rod; 18. driving plate; 19. first driving plate slide slot; 20. second driving plate slide slot; 21. extrusion block slot; 22. fixed wire block slide slot; 23. extrusion block; 24. protruding plate; 25. wire threading slot. 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 Figure 1-6 The utility model provides a technical solution: an NB-IoT Internet of Things smart meter communication module, including a smart meter 1, an intelligent communication module is arranged inside the smart meter 1, and relevant data of the smart meter 1 can be remotely viewed through the corresponding APP on the smart phone, a wiring slot 3 is provided on the front side of the smart meter 1, a detachable protective shell 2 is arranged on the wiring slot 3, two fixing plates 4 are fixedly connected inside the wiring slot 3, threaded grooves 6 are arranged on the opposite sides of the two fixing plates 4, and protective shell fixing screws 5 are threadedly connected on the left and right sides of the protective shell 2, and the surface of the protective shell fixing screw 5 is threadedly connected to the internal thread of the threaded groove 6. The protective shell 2 is fixed and disassembled on the wiring slot 3 by the fixing plate 4, the threaded groove 6 and the protective shell fixing screw 5, and the protective shell 2 plays a role in protecting the internal structure of the wiring slot 3, a wiring board 7 is fixedly connected inside the wiring slot 3, and four first neutral line slots 8, second neutral line slots 9, first live line slots 10 and second live line slots 11 are arranged on the front side of the wiring board 7, and the first neutral line slot 8 and the second neutral line slot 9 are zero line slots. The interface of the wire, the first live wire slot 10 and the second live wire slot 11 are the interfaces of the live wire, the first neutral wire slot 8, the second neutral wire slot 9, the first live wire slot 10, and the second live wire slot 11 are all fixedly connected with a wiring block 13, and the internal thread of the wiring block 13 is connected with a clamping screw 14 extending to the front side of the wiring block 13. After the wire is connected to the inside of the wiring block 13, the clamping screw 14 can be turned to squeeze the wire at one end of the clamping screw 14 located inside the wiring block 13, thereby pressing the wire tightly. This structure is an existing structure, and here Without going into too much detail, the first neutral line slot 8, the second neutral line slot 9, the first live line slot 10 and the second live line slot 11 are all fixedly connected with the wire fixing blocks 12, the left side of the wire fixing block 12 is provided with two wire fixing block slide grooves 22 connected with the right side, the interiors of the two wire fixing block slide grooves 22 are both slidably connected with the surfaces of the two driving plates 18, the two wire fixing block slide grooves 22 are provided with two extrusion block grooves 21 connected with the interior of the wire fixing slot 15 on one side close to the wire fixing slot 15, and the extrusion block grooves 21 are provided with wire anti-falling devices.

[0023] Furthermore, a wire threading groove 25 which is connected to the inside of the first neutral wire groove 8 , the second neutral wire groove 9 , the first live wire groove 10 , and the second live wire groove 11 is formed on the lower surface of the terminal block 7 .

[0024] Furthermore, a wire fixing groove 15 connected to the inside of the wire threading groove 25 is opened on the upper surface of the wire fixing block 12. The wires enter the inside of the wire fixing groove 15 through the wire threading groove 25, and then enter the inside of the wiring block 13 from the inside of the wire fixing groove 15 for power transmission.

[0025] Furthermore, two first driving plate slide grooves 19 connected to the interior of the first live wire groove 10 are opened on the left side inside the second neutral wire groove 9, two second driving plate slide grooves 20 connected to the interior of the first neutral wire groove 8 are opened on the right side inside the second neutral wire groove 9, and two second driving plate slide grooves 20 connected to the interior of the first live wire groove 10 are also opened on the right side inside the second live wire groove 11.

[0026] Furthermore, the internal rotation of the rear first driving plate slot 19 is connected with a rotating rod 17 which penetrates the front first driving plate slot 19 and extends to the front side of the terminal board 7. The surface of the rotating rod 17 is provided with two sections of opposite threads, and the two sections of opposite threads on the rotating rod 17 are respectively located inside the two first driving plate slots 19.

[0027] Furthermore, one end of the rotating rod 17 that passes through the front side of the wiring board 7 is fixedly connected to the rotating disk 16 .

[0028] Furthermore, the interiors of the two first driving plate grooves 19 are both slidably connected with driving plates 18, the surfaces of the driving plates 18 are slidably connected with the interiors of the second driving plate grooves 20, the two driving plates 18 are respectively threadedly sleeved on the two sections of reverse threads on the surface of the rotating rod 17, and the two ends of the driving plates 18 extend to the interiors of the first neutral line groove 8, the second neutral line groove 9, the first live line groove 10, and the second live line groove 11 through the first driving plate groove 19 and the second driving plate groove 20, respectively.

[0029] By rotating the rotating disk 16 , the rotating rod 17 can be driven to rotate, so that the two driving plates 18 can move relative to or toward each other in the first driving plate sliding groove 19 through the action of two sections of reverse threads on the surface of the rotating rod 17 .

[0030] Furthermore, the wire anti-falling device includes an extrusion block 23, which is slidably connected to the inside of the extrusion block groove 21, and the sides of the two extrusion blocks 23 close to the two fixed wire block slide grooves 22 are fixedly connected to the surfaces of the two driving plates 18, and the opposite sides of the two extrusion blocks 23 are arc-shaped. The opposite sides of the two extrusion blocks 23 are fixedly connected with a protruding plate 24, and the side away from the protruding plate 24 is arc-shaped.

[0031] After the staff has passed the wires through the wire threading groove 25 into the wire fixing groove 15, they then insert the connecting end of the wire into the wiring block 13 and rotate the wire clamping screw 14 so that the wire is clamped in the wiring block 13 for power transmission. At this time, the staff rotates the rotating disk 16 so that the rotating disk 16 drives the rotating rod 17 to rotate inside the two first driving plate slide grooves 19, thereby causing the two driving plates 18, which are threadedly sleeved on the two sections of reverse threads on the surface of the rotating rod 17, to move relative to each other, so that the two driving plates 18 drive the two extrusion blocks 23 to move closer to the wire fixing groove 15 inside the two extrusion block grooves 21, thereby clamping the surface of the wire inside the wire fixing groove 15 through the protruding plate 24. The protruding plate 24 acts as a surface to clamp the wire and prevent the wire from sliding, thereby reducing the possibility that the wire inside the wiring block 13 falls off from the inside of the wiring block 13 due to the loosening of the wire clamping screw 14 after a long time, or eliminating the bad relative appearance.

[0032] Working principle: When using the NB-IoT Internet of Things smart meter communication module, the staff rotates the protective shell fixing screw 5 to make the protective shell fixing screw 5 fall off from the inside of the threaded groove 6 on the wiring groove 3, and then removes the protective shell 2, and then passes the wire through the threading groove 25 into the inside of the fixed wire groove 15, and then inserts the connecting end of the wire into the inside of the wiring block 13, and rotates the wire clamping screw 14 to make the wire clamped in the inside of the wiring block 13 for power transmission. At this time, the staff rotates the rotating disk 16, so that the rotating disk 16 drives the rotating rod 17 in the two first driving plate slide grooves 19 The part rotates, so that the two driving plates 18, which are threadedly sleeved on the two sections of reverse threads on the surface of the rotating rod 17, move relatively, so that the two driving plates 18 drive the two extrusion blocks 23 to move closer to the inside of the wire fixing groove 15 inside the two extrusion block grooves 21, so that the surface of the wire inside the wire fixing groove 15 is clamped by the protruding plate 24. The protruding plate 24 plays the role of clamping the surface of the wire to prevent the wire from sliding, thereby reducing the wire inside the wiring block 13 from falling off from the inside of the wiring block 13 due to the loosening of the wire clamping screws 14 after a long time, or eliminating the bad relative appearance.

[0033] Although the 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. An NB-IoT Internet of Things smart meter communication module, comprising a smart meter (1), characterized in that: The smart electric meter (1) has a wiring slot (3) on the front side, a detachable protective shell (2) is arranged on the wiring slot (3), two fixing plates (4) are fixedly connected inside the wiring slot (3), the two fixing plates (4) are provided with threaded slots (6) on opposite sides, the left and right sides of the protective shell (2) are both threadedly connected with protective shell fixing screws (5), the surface of the protective shell fixing screws (5) is threadedly connected with the inner part of the threaded slot (6), the wiring slot (3) is fixedly connected with a wiring board (7), and the front side of the wiring board (7) has four first neutral line slots (8), second neutral line slots (9), first live line slots (10), and second live line slots (11), the first neutral line slot (8), second neutral line slots (9), first live line slots (10), and second live line slots (11). The inside of each of the two wiring blocks (11) is fixedly connected with a wiring block (13), the inside of the wiring block (13) is threadedly connected with a wire clamping screw (14) extending to the front side of the wiring block (13), the inside of the first neutral line slot (8), the second neutral line slot (9), the first live line slot (10), and the second live line slot (11) are fixedly connected with a wire fixing block (12), the left side of the wire fixing block (12) is provided with two wire fixing block slide grooves (22) connected with the right side, the inside of the two wire fixing block slide grooves (22) are slidably connected with the surfaces of the two driving plates (18), the two wire fixing block slide grooves (22) are provided with two extrusion block grooves (21) connected with the inside of the wire fixing slot (15) on one side close to the wire fixing slot (15), and the inside of the extrusion block groove (21) is provided with a wire anti-falling device.

2. The NB-IoT Internet of Things smart meter communication module according to claim 1, characterized in that: The lower surface of the wiring board (7) is provided with a wire threading groove (25) which is in communication with the first neutral wire groove (8), the second neutral wire groove (9), the first live wire groove (10), and the second live wire groove (11).

3. The NB-IoT Internet of Things smart meter communication module according to claim 1, characterized in that: The upper surface of the wire fixing block (12) is provided with a wire fixing groove (15) which is in communication with the interior of the wire threading groove (25).

4. The NB-IoT Internet of Things smart meter communication module according to claim 1, characterized in that: The second neutral line slot (9) has two first driving plate slide grooves (19) on the left side thereof and are connected to the first live line slot (10); the second neutral line slot (9) has two second driving plate slide grooves (20) on the right side thereof and are connected to the first neutral line slot (8); and the second live line slot (11) has two second driving plate slide grooves (20) on the right side thereof and are connected to the first live line slot (10).

5. The NB-IoT Internet of Things smart meter communication module according to claim 4, characterized in that: The first driving plate slot (19) at the rear side is internally rotatably connected to a rotating rod (17) that penetrates the first driving plate slot (19) at the front side and extends to the front side of the terminal board (7); the surface of the rotating rod (17) is provided with two sections of opposite threads; the two sections of opposite threads on the rotating rod (17) are respectively located inside the two first driving plate slots (19).

6. The NB-IoT Internet of Things smart meter communication module according to claim 5, characterized in that: The rotating rod (17) passes through one end of the front side of the wiring board (7) and is fixedly connected to a rotating disk (16).

7. The NB-IoT Internet of Things smart meter communication module according to claim 4, characterized in that: The insides of the two first driving plate slide grooves (19) are both slidably connected with driving plates (18), the surfaces of the driving plates (18) are slidably connected with the insides of the second driving plate slide grooves (20), and the two driving plates (18) are respectively threadedly sleeved on two sections of reverse threads on the surface of the rotating rod (17).

8. The NB-IoT Internet of Things smart meter communication module according to claim 1, characterized in that: The wire anti-drop device comprises an extrusion block (23), the extrusion block (23) is slidably connected to the inside of the extrusion block groove (21), the sides of the two extrusion blocks (23) close to the two fixed wire block slide grooves (22) are fixedly connected to the surfaces of the two driving plates (18), and the opposite sides of the two extrusion blocks (23) are fixedly connected to protruding plates (24), and the side of the protruding plate (24) away from the protruding plate (24) is arc-shaped.

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