Diaphragm gas meter based on NB-IoT communication module

Abstract

The utility model relates to the technical field of membrane type gas meters, and discloses a membrane type gas meter based on an NB-IoT communication module, the membrane type gas meter comprises a display device, the front end of the display device is fixedly connected with an Internet of Things module, the inner walls of the left and right sides of the display device are fixedly connected with clamping assemblies used for rapidly disassembling the display device, and the clamping assemblies are fixedly connected with the display device. A rubber sleeve is detachably connected to the rear end of the display device, a fuel gas box is fixedly connected to the bottom end of the inner wall of the rubber sleeve, a plurality of outer plates are fixedly connected to the inner wall of the rubber sleeve, two side blocks are fixedly connected to the inner sides of the outer plates, and two sliding blocks are slidably connected to the inner sides of the outer plates. According to the gas box, when the rubber sleeve is subjected to external acting force, the two sliding blocks stretch the damper, so that the damper generates inward pulling acting force, the inward pulling acting force and the external force are mutually counteracted, the risk of explosion caused by the fact that the internal pressure is increased due to the fact that the gas box is subjected to overlarge external pressure is prevented, and the safety of the gas box is improved.

Description

Technical Field

[0001] This utility model relates to the field of diaphragm gas meter technology, and in particular to a diaphragm gas meter based on an NB-IoT communication module. Background Technology

[0002] Diaphragm gas meters are a technology that uses a thin film and a mechanical counter to measure gas flow. The working principle is that when gas passes through the meter, it pushes the diaphragm to move, thereby driving the mechanical counter to measure the flow. Diaphragm gas meters based on NB-IoT communication modules have been upgraded to achieve remote data transmission and real-time monitoring through NB-IoT (Narrowband Internet of Things) technology. This new type of gas meter can not only accurately measure gas flow but also transmit data to the cloud in real time, greatly improving the convenience and efficiency of gas management.

[0003] In existing technologies, some diaphragm gas meters cannot provide effective protection. The gas delivery chamber behind it is heavy and therefore at risk of accidentally falling. This could compress the gas box inside, increasing the internal pressure and thus increasing the risk of explosion, thereby reducing the safety of the device. To address this issue, a diaphragm gas meter based on an NB-IoT communication module is proposed. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a diaphragm gas meter based on an NB-IoT communication module, aiming to improve the problem that some existing diaphragm gas meters cannot provide effective protection. Due to their large weight, the gas delivery chamber at the rear is at risk of accidentally falling, which would compress the gas box inside, increase the internal pressure, and thus increase the risk of explosion, reducing the safety of the device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A diaphragm gas meter based on an NB-IoT communication module includes a display device. An IoT module is fixedly connected to the front end of the display device. Locking components for quick disassembly of the display device are fixedly connected to the inner walls of both the left and right sides of the display device. A rubber sleeve is detachably connected to the rear end of the display device. A gas box is fixedly connected to the bottom of the inner wall of the rubber sleeve. Multiple outer plates are fixedly connected to the inner wall of the rubber sleeve. Two side blocks are fixedly connected to the inner side of each outer plate. Two sliders are slidably connected to the inner side of each outer plate. A damper is fixedly connected to the adjacent side of the two sliders. An inner block is fixedly connected to the right side of each slider. Two support rods are fixedly connected to the right side of the inner block. Connecting rods are rotatably connected to the other ends of the two support rods. A chassis is rotatably connected to the other ends of the two connecting rods.

[0007] As a further description of the above technical solution:

[0008] The locking assembly includes a side box, the outside of which is fixedly connected to the inner walls of the left and right sides of the display device. A pull rod is slidably connected to the left side of the inner wall of the side box. A rotating block is fixedly connected to one end of the pull rod. A pull rope is rotatably connected to the inside of the pull rod. A limit plate is fixedly connected to the other end of the pull rope. An outer post is slidably connected to the outside of the pull rope. A spring is provided inside the outer post. A rotating post is rotatably connected to one end of the outer post.

[0009] As a further description of the above technical solution:

[0010] The inner walls of the left and right sides of the rubber sleeve are fixedly connected to an inner box. The outer side of the first rotating block is engaged with the inner wall of the inner box. The inner wall of the inner box is rotatably connected to a second rotating block.

[0011] As a further description of the above technical solution:

[0012] Two gas delivery pipes are fixedly connected to the top of the gas box, and a filter screen is slidably connected to the top of the gas delivery pipes.

[0013] As a further description of the above technical solution:

[0014] The limiting plate is externally slidably connected to the inner wall of the outer column, and the rear end of the side box is in contact with the front end of the inner box.

[0015] As a further description of the above technical solution:

[0016] One side of the first rotating block is in contact with one side of the second rotating block, and the outer side of the first rotating block is rotatably connected to the inner wall of the side box.

[0017] As a further description of the above technical solution:

[0018] One end of the spring is fixedly connected to one side of the inner wall of the outer column, and the other end of the spring is fixedly connected to one side of the limiting plate.

[0019] As a further description of the above technical solution:

[0020] The outer bottom end of the gas pipe is fixedly connected to the inner wall of the top of the rubber sleeve, and the inner side of the chassis is fixedly connected to the outside of the gas box.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, when the rubber sleeve is impacted or accidentally dropped, the distance between the outer plate and the chassis shortens, thereby causing the slider to slide on the outer plate. This stretches the damper, causing it to generate an inward pulling force, which cancels out the force of the impact or drop. This prevents the gas box from being subjected to excessive external pressure, which could lead to an increase in internal pressure and thus the risk of explosion, thereby improving the safety of the device. At the same time, the outer surface of the display device is coated with a silicon-based coating. This coating has good hydrophobicity and adhesion, which can effectively prevent moisture from entering its interior and damaging the internal electronic components, further improving the overall protective capability of the device.

[0023] 2. In this utility model, by pulling the lever, the rotating block is driven to rotate. When the lever rotates to the same horizontal line as the display device, the display device can be removed from the front end of the rubber sleeve. This method does not require the staff to carry any disassembly tools, achieving a more convenient and faster disassembly efficiency, thereby improving maintenance efficiency. In addition, a filter screen is placed at the top of the gas pipe, which can effectively block hard impurities in the gas, thereby ensuring that the gas entering this monitoring device is pure, thus improving the accuracy of measurement. Moreover, the filter screen here can be easily removed. After many impurities adhere to it, it can be manually removed for cleaning, and it can be used multiple times, thus improving its service life. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a diaphragm gas meter based on an NB-IoT communication module proposed in this utility model.

[0025] Figure 2 This is a schematic diagram of the structure of the rubber sleeve of a diaphragm gas meter based on an NB-IoT communication module proposed in this utility model.

[0026] Figure 3 for Figure 2 Enlarged view of point A in the image;

[0027] Figure 4 An exploded view of the gas transmission pipe structure of a diaphragm gas meter based on an NB-IoT communication module proposed in this utility model;

[0028] Figure 5 This is a schematic diagram of the outer plate of a diaphragm gas meter based on an NB-IoT communication module proposed in this utility model;

[0029] Figure 6 This is a schematic diagram of the connecting rod structure of a diaphragm gas meter based on an NB-IoT communication module proposed in this utility model.

[0030] Legend:

[0031] 1. Display device; 2. IoT module; 3. Side box; 4. Pull rod; 5. Rotating block one; 6. Pull rope; 7. Limiting plate; 8. Outer column; 9. Spring; 10. Rotating column; 11. Rubber sleeve; 12. Inner box; 13. Rotating block two; 14. Gas pipe; 15. Filter screen; 16. Gas box; 17. Outer plate; 18. Side block; 19. Slider; 20. Damper; 21. Inner block; 22. Support rod; 23. Connecting rod; 24. Chassis. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figures 1 to 3 This utility model provides an embodiment of a diaphragm gas meter based on an NB-IoT communication module, including a display device 1. The display device 1 is coated with a silicon-based coating, which has good hydrophobicity and adhesion, effectively preventing moisture from entering and damaging the internal electronic components. An IoT module 2 is fixedly connected to the front end of the display device 1. The IoT module 2 refers to NB-IoT, or Narrowband Internet of Things, a low-power wide-area network technology specifically designed for connecting devices and networks to achieve wireless communication for IoT applications. The combination of the diaphragm gas meter and the NB-IoT communication module is an innovation in the field of smart gas metering, bringing remote monitoring, data transmission, and intelligent management capabilities to traditional diaphragm gas meters. The inner walls of both the left and right sides of the display device 1 are fixedly connected to locking components for quick disassembly of the display device 1. These locking components include side boxes 3, which are externally fixedly connected to the inner walls of the left and right sides of the display device 1.

[0034] A pull rod 4 is slidably connected to the left side of the inner wall of the side box 3. One end of the pull rod 4 is fixedly connected to a rotating block 5. Pulling the pull rod 4 here will cause the rotating block 5 to rotate on the inner wall of the side box 3. The outer side of the rotating block 5 is rotatably connected to the inner wall of the side box 3. A pull rope 6 is rotatably connected to the inner side of the pull rod 4. When the pull rod 4 is pulled here, it will drive the pull rope 6 to move outward together. The other end of the pull rope 6 is fixedly connected to a limiting plate 7. The outer side of the pull rope 6 is slidably connected to an outer post 8. The outer side of the limiting plate 7 is slidably connected to the inner wall of the outer post 8. The limiting plate 7 here ensures that the pull rope 6 will not easily leave the sliding range of the outer post 8. A spring 9 is set inside the outer post 8. The spring 9 here is to quickly reset after the pull rod 4 is pulled. It is a key structure in the locking assembly. One end of the spring 9 is fixedly connected to one side of the inner wall of the outer column 8, and the other end of the spring 9 is fixedly connected to one side of the limiting plate 7. The outer column 8 and the limiting plate 7 provide stable support for the spring 9, making it stable during extension and retraction and preventing it from breaking easily. One end of the outer column 8 is rotatably connected to a rotating column 10, and a rubber sleeve 11 is detachably connected to the rear end of the display device 1. The rubber sleeve 11 is made of hard rubber, which has good strength and a certain degree of elasticity. It can be worn down by external impacts or the force of the device being accidentally dropped, thereby reducing the force transmitted inward.

[0035] Thus, the inner boxes 12 are fixedly connected to the inner walls of both sides of the rubber sleeve 11. The rear end of the side box 3 is in contact with the front end of the inner box 12. The outer side of the rotating block 5 is engaged with the inner wall of the inner box 12. When the pull rod 4 is pulled, the rotating block 5 can be rotated, thereby pulling the pull rope 6 outward, further driving the limiting plate 7, thereby driving the spring 9 to stretch. The inner wall of the inner box 12 is rotatably connected to a rotating block 13. One side of the rotating block 5 contacts one side of the rotating block 13. Because the rotating blocks 5 and 13 are in contact here, and when they are combined, they form a complete circle, rotating the rotating block 5 will drive the rotating block 13 to rotate as well, until the pull rod 4 rotates to the same horizontal line as the display device 1. At this point, the display device 1 can be removed from the front end of the rubber sleeve 11 for inspection of its internal electronic components. After the inspection is completed, pull the pull rod 4 again to make it horizontal again with the display device 1, and then place the display device 1 back into the front end of the rubber sleeve 11. At this point, the spring 9 pulls the device into place, thus completing the installation. This design allows workers to remove the display device 1 from the front end of the rubber sleeve 11 for inspection without any tools, which is convenient, quick, and saves time, thereby improving the efficiency of the inspection.

[0036] Reference Figures 4 to 6A gas box 16 is fixedly connected to the bottom of the inner wall of the rubber sleeve 11. Two gas pipes 14 are fixedly connected to the top of the gas box 16. The gas pipes 14 can be used to connect to the pipeline for transporting gas, so as to detect the gas in real time. The bottom of the outer side of the gas pipe 14 is fixedly connected to the inner wall of the top of the rubber sleeve 11. A filter screen 15 is slidably connected to the top of the gas pipe 14. The filter screen 15 can filter hard impurities in the gas, thereby improving the accuracy of gas metering. The filter screen 15 is essentially placed directly on the top of the gas pipe 14, so it can be manually removed after many impurities adhere to it, and its surface can be cleaned. It can be used multiple times.

[0037] Multiple outer plates 17 are fixedly connected to the inner wall of the rubber sleeve 11. Two side blocks 18 are fixedly connected to the inner side of the outer plates 17. When this device is accidentally dropped or subjected to external impact due to its large weight, the outermost rubber sleeve 11 will bear the force first. Because its material is hard rubber, it has a certain strength and good elasticity, so it will offset part of the force. Two sliders 19 are slidably connected to the inner side of the outer plates 17. A damper 20 is fixedly connected to the adjacent side of the two sliders 19. The remaining force will be transmitted to the outer plates 17 and then continue to be transmitted inward. An inner block 21 is fixedly connected to the right side of the sliders 19. The sliders 19 here provide stable support for the inner block 21. Two support rods 22 are fixedly connected to the right side of the inner block 21. The other end of the two support rods 22 is rotatably connected to the connecting rods 23. The other end of the two connecting rods 23 is rotatably connected to the base 24.

[0038] The inner side of the chassis 24 is fixedly connected to the outside of the gas box 16. When the outer plate 17 continues to transmit force inward, the distance between it and the chassis 24 will shorten, thereby driving the connecting rod 23 to rotate. This will further drive the support rod 22, the inner block 21, and the slider 19 to move up and down. A damper 20 (a tension hydraulic type) is fixed between the two sliders 19. This will stretch the damper 20, causing it to generate an inward contraction force, which will cancel out the impact force from the outside. This will protect the internal gas box 16, prevent the risk of explosion due to excessive pressure, and improve the safety of the device.

[0039] Working principle: Gas is delivered to the gas box 16 through a rigid rubber gas pipe 14. As it passes through the filter 15, impurities are filtered out, ensuring the cleanliness of the gas entering the diaphragm gas meter and thus guaranteeing accurate measurement. The filter 15 is essentially placed directly at the top of the gas pipe 14, so it can be manually removed and cleaned after many impurities accumulate, allowing for multiple uses. At this point, the display device 1, in conjunction with the NB-IoT Internet of Things module 2, enables remote transmission and monitoring of gas data. The display device 1 is coated with a silicone-based coating, which has excellent hydrophobicity and adhesion, effectively preventing moisture from entering and damaging the internal electronic components.

[0040] When display device 1 needs maintenance, the operator manually pulls lever 4, causing rotating block 5, which is fixed inside side box 3, to rotate. A pull rope 6 is connected to the inside of lever 4, with its other end fixed to limit plate 7. Limit plate 7 remains stable due to its sliding connection inside outer column 8. Spring 9 inside outer column 8 provides a rapid reset force after stretching, enabling quick fixing and release of the locking assembly. Rotating block 5 contacts and drives rotating block 13 until lever 4 is parallel to display device 1. At this point, display device 1 can be removed from rubber sleeve 11 for maintenance. After maintenance, display device 1 is reinstalled, and lever 4 is pulled again to reset it. Under the action of spring 9, the locking assembly automatically engages, simplifying the operation process and improving maintenance efficiency.

[0041] If the device is accidentally dropped or impacted, the rubber sleeve 11 first absorbs the impact force. Made of hard rubber, the sleeve possesses considerable strength and elasticity, allowing it to absorb the force from external impacts or accidental drops, thus reducing the inward force. As the outer plate 17 continues to transmit force inward, the distance between it and the chassis 24 shortens, causing the connecting rod 23 to rotate. This, in turn, moves the support rod 22, inner block 21, and slider 19 upwards and downwards. A damper 20 (a tension hydraulic type) is fixed between the two sliders 19, stretching the damper 20 and generating an inward contraction force. This force counteracts the impact force, protecting the internal gas box 16 and preventing the risk of explosion due to excessive pressure, thus improving the device's safety. The overall design, combining the properties of hard rubber and silicone coatings with a precise mechanical structure, achieves an easy-to-maintain, impact-resistant, and remotely data-transmitting intelligent gas metering device.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A diaphragm gas meter based on an NB-IoT communication module, comprising a display device (1), characterized in that: The front end of the display device (1) is fixedly connected to an Internet of Things module (2). The inner walls of the left and right sides of the display device (1) are fixedly connected to a snap-fit ​​assembly for quick disassembly of the display device (1). The rear end of the display device (1) is detachably connected to a rubber sleeve (11). The bottom of the inner wall of the rubber sleeve (11) is fixedly connected to a gas box (16). The inner wall of the rubber sleeve (11) is fixedly connected to multiple outer plates (17). The inner side of the outer plate (17) is fixedly connected to two side blocks (18). The inner side of the outer plate (17) is slidably connected to two sliders (19). The adjacent side of the two sliders (19) is fixedly connected to a damper (20). The right side of the slider (19) is fixedly connected to an inner block (21). The right side of the inner block (21) is fixedly connected to two support rods (22). The other end of the two support rods (22) is rotatably connected to a connecting rod (23). The other end of the two connecting rods (23) is rotatably connected to a chassis (24).

2. A diaphragm gas meter based on an NB-IoT communication module according to claim 1, characterized in that: The locking assembly includes a side box (3), which is fixedly connected to the inner walls of the left and right sides of the display device (1). A pull rod (4) is slidably connected to the left side of the inner wall of the side box (3). A rotating block (5) is fixedly connected to one end of the pull rod (4). A pull rope (6) is rotatably connected to the inner side of the pull rod (4). A limit plate (7) is fixedly connected to the other end of the pull rope (6). An outer column (8) is slidably connected to the outside of the pull rope (6). A spring (9) is provided inside the outer column (8). A rotating column (10) is rotatably connected to one end of the outer column (8).

3. A diaphragm gas meter based on an NB-IoT communication module according to claim 2, characterized in that: The inner walls of the left and right sides of the rubber sleeve (11) are fixedly connected to the inner box (12). The outer side of the first rotating block (5) is engaged with the inner wall of the inner box (12). The inner wall of the inner box (12) is rotatably connected to the second rotating block (13).

4. A diaphragm gas meter based on an NB-IoT communication module according to claim 1, characterized in that: The top of the gas box (16) is fixedly connected to two gas supply pipes (14), and the top of the gas supply pipes (14) is slidably connected to a filter screen (15).

5. A diaphragm gas meter based on an NB-IoT communication module according to claim 3, characterized in that: The limiting plate (7) is externally slidably connected to the inner wall of the outer column (8), and the rear end of the side box (3) is in contact with the front end of the inner box (12).

6. A diaphragm gas meter based on an NB-IoT communication module according to claim 3, characterized in that: One side of the rotating block one (5) is in contact with one side of the rotating block two (13), and the outside of the rotating block one (5) is rotatably connected to the inner wall of the side box (3).

7. A diaphragm gas meter based on an NB-IoT communication module according to claim 3, characterized in that: One end of the spring (9) is fixedly connected to one side of the inner wall of the outer column (8), and the other end of the spring (9) is fixedly connected to one side of the limiting plate (7).

8. A diaphragm gas meter based on an NB-IoT communication module according to claim 4, characterized in that: The outer bottom end of the gas pipe (14) is fixedly connected to the inner wall of the top end of the rubber sleeve (11), and the inner side of the chassis (24) is fixedly connected to the outside of the gas box (16).

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