NB-IoT (Narrow Band Internet of Things) remote water meter

Abstract

The utility model relates to the technical field of water meters, and discloses an NB-IoT (Narrow Band Internet of Things) remote water meter which comprises a base meter shell, the top of the base meter shell is fixedly connected with a cylindrical shell, the top of the cylindrical shell is provided with a protective cover, one end of the cylindrical shell is fixedly connected with a plastic shell, one side of the plastic shell is movably connected with a pushing block, and one end of the pushing block is fixedly connected with a rack. One side of the rack is in meshed connection with a rotating shaft, one end of the rotating shaft is in meshed connection with an outer gear ring, the inner side of the outer gear ring is fixedly connected with a plurality of baffles, the outer side of the bottom of the protective cover is fixedly connected with a plurality of clamping blocks, the baffles are located at the tops of the clamping blocks, and by pressing a pushing block, the pushing block drives the rack to move, and the rack moves to drive the rotating shaft to rotate; the rotating shaft rotates to drive the outer gear ring to rotate, the outer gear ring drives the baffle to movably break away from the top of the clamping groove, so that limiting of the clamping block is relieved, then the protective cover is moved upwards, the protective cover drives the clamping block to move upwards, the cylindrical shell is disassembled, and the interior of the cylindrical shell is conveniently overhauled.

Description

Technical Field

[0001] This utility model relates to the field of water meter technology, specifically to an NB-IoT remote water meter. Background Technology

[0002] NB-IoT is a narrowband communication technology based on cellular networks that supports low data rates, low power consumption, and long-distance communication (coverage range of 1-10 kilometers). It supports the frequency bands of various operators, and its power management adopts PSM (Power Saving Mode) and eDRX (Discontinuous Receiver) technologies. Its standby power consumption is <1mW, and its battery life can reach 6-10 years.

[0003] NB-IoT (Narrowband Internet of Things) remote water meters are smart metering devices based on narrowband IoT technology. They enable remote collection, transmission, and management of water consumption data through NB-IoT networks. Their core advantages lie in low power consumption, wide coverage, and strong connectivity, making them suitable for smart city and smart water management scenarios. They solve problems associated with traditional water meters, such as difficult meter reading, high maintenance costs, and data lag.

[0004] Regarding the existing related technologies, the inventors believe that the following defects exist: when a water meter malfunctions, the existing water meter protective cover is generally fixed to the outer casing, making it inconvenient to disassemble the outer casing of the water meter, which makes it inconvenient for engineers to inspect and repair it. Utility Model Content

[0005] To address the technical problem that existing water meters are difficult to disassemble, making it inconvenient for engineers to inspect and maintain them, this utility model provides an NB-IoT remote water meter.

[0006] This utility model is achieved using the following technical solution: an NB-IoT remote water meter, comprising a base casing, a column casing fixedly connected to the top of the base casing, a protective cover provided on the top of the column casing, a plastic shell fixedly connected to one end of the column casing, a push block movably connected to one side of the plastic shell, a rack fixedly connected to one end of the push block, a rotating shaft engaged with one side of the rack, an external gear ring engaged with one end of the rotating shaft, multiple baffles fixedly connected to the inner side of the external gear ring, and multiple locking blocks fixedly connected to the outer bottom of the protective cover, with the baffles located on top of the locking blocks.

[0007] Preferably, the top of the cylindrical shell is machined with an annular groove, and the bottom of the protective cover is plugged into the inside of the annular groove.

[0008] Preferably, the outer side of the annular groove is machined with multiple slots, the locking block is movably connected to the inside of the slots, and the baffle is movably connected to the top of the slots.

[0009] Preferably, the top of the cylindrical shell is machined with a rotating groove, the external toothed ring is movably connected inside the rotating groove, and the top of the slot is connected to the inside of the rotating groove.

[0010] Preferably, the interior of the plastic shell is machined with grooves, and the push block is movably connected inside the grooves.

[0011] Preferably, one end of the groove is machined with a movable groove, and the rack is movably connected inside the movable groove.

[0012] Preferably, a return spring is provided at one end of the movable groove, one end of the return spring is fixedly connected to the inner wall of one end of the movable groove, and the other end of the return spring is fixedly connected to one end of the rack.

[0013] Preferably, the return spring has a guide rod inside, one end of which is fixedly connected to the inner wall of one end of the movable groove, and the other end of which is movably connected to the inside of the rack.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In use, pressing the push block causes the rack to move, which in turn causes the shaft to rotate. The rotation of the shaft causes the outer gear ring to rotate, which in turn causes the baffle to move away from the top of the slot, thus releasing the block from its limit. Then, the protective cover moves upward, causing the block to move upward, thereby disassembling the column shell and facilitating internal inspection. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram showing the separation of the cylindrical shell and the protective cover of this utility model;

[0018] Figure 3 This is a cross-sectional view of the cylindrical shell of this utility model;

[0019] Figure 4 This is a cross-sectional view of the plastic shell of this utility model.

[0020] In the diagram: 1. Base case; 2. Pillar case; 3. Protective cover; 4. Plastic case; 5. Push block; 6. Rack; 7. Rotating shaft; 8. External gear ring; 9. Baffle; 10. Locking block; 11. Ring groove; 12. Locking groove; 13. Rotating groove; 14. Groove; 15. Movable groove; 16. Return spring; 17. Guide rod. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0022] Example 1: Please refer to Figure 1 - Figure 4 This embodiment of an NB-IoT remote water meter includes a base casing 1, a column casing 2 fixedly connected to the top of the base casing 1, a protective cover 3 provided on the top of the column casing 2, a plastic casing 4 fixedly connected to one end of the column casing 2, a push block 5 movably connected to one side of the plastic casing 4, a rack 6 fixedly connected to one end of the push block 5, a rotating shaft 7 meshingly connected to one side of the rack 6, an external gear ring 8 meshingly connected to one end of the rotating shaft 7, multiple baffles 9 fixedly connected to the inner side of the external gear ring 8, and multiple locking blocks 10 fixedly connected to the bottom outer side of the protective cover 3, with the baffles 9 located on top of the locking blocks 10.

[0023] When it is necessary to disassemble the protective cover 3, press the push block 5. The push block 5 will drive the rack 6 to move. The movement of the rack 6 will drive the rotating shaft 7 to rotate. The rotation of the rotating shaft 7 will drive the outer gear ring 8 to rotate. The outer gear ring 8 will drive the baffle 9 to move. The movement of the baffle 9 will disengage from the top of the locking block 10, thereby releasing the limit of the locking block 10. Then, move the protective cover 3 upward. The protective cover 3 will drive the locking block 10 to move upward, thereby disassembling the column shell 2, which will facilitate the inspection of the inside of the column shell 2.

[0024] Furthermore, the top of the column shell 2 is machined with an annular groove 11, and the bottom of the protective cover 3 is plugged into the inside of the annular groove 11, so that the bottom of the protective cover 3 is inserted into the inside of the annular groove 11, thereby sealing the top of the column shell 2.

[0025] Furthermore, multiple slots 12 are machined on the outer side of the annular groove 11. The locking block 10 is movably connected to the inside of the slot 12, and the baffle 9 is movably connected to the top of the slot 12. When the protective cover 3 moves the locking block 10, the locking block 10 will move upward along the inside of the slot 12.

[0026] Furthermore, the top of the cylindrical shell 2 is machined with a rotating groove 13, and the external gear ring 8 is movably connected inside the rotating groove 13. The top of the slot 12 is connected to the inside of the rotating groove 13. When the external gear ring 8 rotates, it will rotate along the inside of the rotating groove 13. The rotating groove 13 will limit the movement of the external gear ring 8. The external gear ring 8 drives the baffle 9 to move, so that the baffle 9 is disengaged from the top of the slot 12, thereby allowing the locking block 10 to disengage from the top of the slot 12. By providing the baffle 9, which is located at the top of the slot 12, the slot 12 limits the movement of the locking block 10, preventing the protective cover 3 from disengaging from the inside of the annular groove 11.

[0027] Furthermore, the interior of the plastic shell 4 is machined with a groove 14, and the push block 5 is movably connected to the interior of the groove 14. One end of the groove 14 is machined with a movable groove 15, and the rack 6 is movably connected to the interior of the movable groove 15. When the push block 5 is pressed, the push block 5 will move along the interior of the groove 14, and the push block 5 will drive the rack 6 to move. The rack 6 will move along the interior of the movable groove 15, and the movable groove 15 will limit the movement of the rack 6, so that the rack 6 remains stable when it moves.

[0028] Furthermore, a return spring 16 is provided at one end of the movable groove 15. One end of the return spring 16 is fixedly connected to the inner wall of one end of the movable groove 15, and the other end of the return spring 16 is fixedly connected to one end of the rack 6. By providing the return spring 16, when the push block 5 is pushed, the rack 6 will drive the return spring 16 to compress. When the push block 5 is released, the return spring 16 will return to its original position and extend. The return spring 16 will drive the rack 6 and the push block 5 to move, thereby causing the push block 5 to move and return to its original position.

[0029] Furthermore, a guide rod 17 is provided inside the return spring 16. One end of the guide rod 17 is fixedly connected to the inner wall of one end of the movable groove 15, and the other end of the guide rod 17 is movably connected to the inside of the rack 6. With the guide rod 17 provided, when the rack 6 moves, one end of the rack 6 will move along the outside of the guide rod 17. The return spring 16 will limit the movement of the rack 6, and at the same time, the guide rod 17 will constrain the direction of the spring's movement, causing it to extend and retract axially, thus preventing skewing or instability.

[0030] Working principle: By pressing the push block 5, the push block 5 will drive the rack 6 to move, the rack 6 will drive the rotating shaft 7 to rotate, the rotating shaft 7 will drive the outer gear ring 8 to rotate, the outer gear ring 8 will drive the baffle 9 to move, and the baffle 9 will disengage from the top of the locking block 10, thereby releasing the locking block 10 from its limit. Then the protective cover 3 will move upward, and the protective cover 3 will drive the locking block 10 to move upward, thereby disassembling the column shell 2, which will facilitate the inspection of the inside of the column shell 2.

[0031] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. An NB-IoT remote water meter, comprising a base casing (1), a column casing (2) fixedly connected to the top of the base casing (1), a protective cover (3) provided on the top of the column casing (2), and a plastic shell (4) fixedly connected to one end of the column casing (2), characterized in that, A push block (5) is movably connected to one side of the plastic shell (4). A rack (6) is fixedly connected to one end of the push block (5). A rotating shaft (7) is meshed to one side of the rack (6). An external toothed ring (8) is meshed to one end of the rotating shaft (7). Multiple baffles (9) are fixedly connected to the inner side of the external toothed ring (8). Multiple locking blocks (10) are fixedly connected to the outer bottom of the protective cover (3). The baffles (9) are located on top of the locking blocks (10).

2. The NB-IoT water meter according to claim 1, characterized in that, The top of the cylindrical shell (2) is machined with an annular groove (11), and the bottom of the protective cover (3) is plugged into the inside of the annular groove (11).

3. The NB-IoT water meter according to claim 2, characterized in that, The outer side of the annular groove (11) is machined with multiple slots (12), the locking block (10) is movably connected to the inside of the slot (12), and the baffle (9) is movably connected to the top of the slot (12).

4. The NB-IoT water meter of claim 3, wherein, The top of the cylindrical shell (2) is machined with a rotating groove (13), the external toothed ring (8) is movably connected inside the rotating groove (13), and the top of the slot (12) is connected to the inside of the rotating groove (13).

5. The NB-IoT water meter of claim 1, wherein, The interior of the plastic shell (4) is machined with a groove (14), and the push block (5) is movably connected inside the groove (14).

6. The NB-IoT water meter of claim 5, wherein, One end of the groove (14) is machined with a movable groove (15), and the rack (6) is movably connected inside the movable groove (15).

7. The NB-IoT water meter of claim 6, wherein, A reset spring (16) is provided at one end of the movable groove (15). One end of the reset spring (16) is fixedly connected to the inner wall of one end of the movable groove (15), and the other end of the reset spring (16) is fixedly connected to one end of the rack (6).

8. The NB-IoT water meter of claim 7, wherein, The return spring (16) has a guide rod (17) inside. One end of the guide rod (17) is fixedly connected to the inner wall of one end of the movable groove (15), and the other end of the guide rod (17) is movably connected to the inside of the rack (6).

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