A NB-IoT water meter with low flow resistance

Abstract

The present invention discloses a NB‑IoT water meter with low flow resistance, including: a water meter body, a core for installing an electromagnetic water meter, a cleaning component, which is arranged inside the water meter body, wherein: two cleaning components are arranged, each cleaning component includes a protective tube, a sealing tube, a movable tube, a balancing hole, a pressurizing hole and a pressure tube, and the water meter body also includes a detection tube. In the present invention, firstly, the cleaning component can realize stable cleaning of the inside of the detection tube, avoid attachments affecting the detection accuracy, and ensure that the water meter is always in the best working condition. The cleaning component can be used to minimize the water flow resistance to avoid the transmission efficiency of the water volume affected by the detection components and the cleaning component. In combination with the protective tube and the sealing tube, the detection tube can be wrapped to avoid electromagnetic signals in the external environment affecting the detection accuracy of the electromagnetic water meter, and ensure that the detection accuracy of the water meter is within the standard.

Description

Technical Field

[0001] The present invention belongs to the technical field of water meters, and in particular relates to an NB-IoT Internet of Things water meter with low flow resistance. Background Art

[0002] A water meter is an instrument for measuring water flow, most of which measure the cumulative flow of water. It is generally divided into two categories: volumetric water meter and velocity water meter.

[0003] Narrowband Internet of Things has become an important branch of the Internet of Everything. NB-IoT is built on cellular networks and consumes only about 180kHz of bandwidth. It can be directly deployed on GSM networks, UMTS networks or LTE networks to reduce deployment costs and achieve smooth upgrades.

[0004] Existing IoT water meters often use electromagnetic water meters or ultrasonic water meters as the meter core, but such meter cores are often affected by the environment, resulting in poor detection accuracy of the water meter, which is very likely to cause the water meter to fail. In addition, a large amount of impurities are attached to the inside of the water meter, further affecting the detection accuracy. The attachments will increase the resistance of the water flow, further reducing its practicality. Summary of the invention

[0005] The purpose of the present invention is to provide an NB-IoT Internet of Things water meter with low flow resistance. In the present invention, first of all, the cleaning component can realize stable cleaning of the inside of the detection tube, avoid attachments affecting the detection accuracy, and ensure that the water meter is always in the best working condition. The cleaning component can be used to minimize water flow resistance to avoid the detection components and cleaning components affecting the water transmission efficiency. Combined with the protective tube and the sealing tube, the detection tube can be wrapped to avoid electromagnetic signals in the external environment affecting the detection accuracy of the electromagnetic water meter, thereby ensuring that the detection accuracy of the water meter is within the standard.

[0006] The technical solution adopted by the present invention is as follows: a NB-IoT Internet of Things water meter with low flow resistance, comprising:

[0007] The water meter body is used to install the core of the electromagnetic water meter;

[0008] A cleaning component is arranged inside the water meter body, wherein: there are two cleaning components, each of which includes a protective tube, a sealing tube, a movable tube, a balancing hole, a pressurizing hole and a pressure tube, the water meter body also includes a detection tube, and the detection tube is embedded in the inner wall of the water meter body, the two cleaning components are respectively threadedly connected to the outer walls of the two ends of the detection tube, the sealing tube is threadedly connected to the inner wall of the protective tube, the movable tube is slidably embedded in the inner wall of the sealing tube, the inner wall of the movable tube is attached to the inner wall of the detection tube, the balancing hole and the pressurizing hole are respectively opened at the outer walls of the two ends of the sealing tube, and the pressure tube and the pressurizing hole are connected to each other.

[0009] Furthermore, inner walls of the ends of the two protection tubes that are away from each other are provided with internal threads, and ends of the two protection tubes that are close to each other are threadedly connected to the outer walls of both ends of the detection tube.

[0010] Furthermore, the bottoms of the outer walls of the two protection tubes are connected to each other through openings and are provided with mounting tubes, and the inner walls of the bottom ends of the mounting tubes are provided with mounting threads.

[0011] Furthermore, the installation tube is located directly below the balancing hole, and an electromagnetic valve is embedded in the inner wall of the installation tube, and the electromagnetic valve and the balancing hole are connected to each other.

[0012] Furthermore, an auxiliary groove is provided on the inner wall of the movable tube, and an anti-wear coating is sprayed on the inner wall of the auxiliary groove, and the inner wall of the auxiliary groove is attached to the outer wall of the sealing tube.

[0013] Furthermore, a heating plate is fixedly arranged at the bottom of the outer wall of the detection tube, a sealing tank is fixedly arranged at the bottom of the outer wall of the heating plate, and a mounting groove is opened at the bottom of the outer wall of the heating plate.

[0014] Furthermore, a circulation pipe is embedded in the inner wall of the sealed tank, and the output end and the input end of the circulation pipe are connected to the external water pipe.

[0015] Furthermore, the input end of the pressure tube is connected to an external pressure supply device via a valve.

[0016] Furthermore, a grinding groove is provided on one side of the outer wall of the two movable tubes that are attached to the detection tube.

[0017] Furthermore, the ends of the movable tubes that are close to each other are arranged to fit each other, and the two movable tubes and the detection tube are located on the same axis.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0019] (1) In the present invention, the cleaning component is firstly cleaned, so that the inside of the detection tube can be stably cleaned, so as to avoid the influence of the attachment on the detection accuracy and ensure that the water meter is always in the best working condition.

[0020] (2) In the present invention, the cleaning component is used to minimize the water flow resistance and avoid affecting the water transmission efficiency due to the detection components and the cleaning component.

[0021] (3) In the present invention, the protection tube and the sealing tube are combined to wrap the detection tube, thereby preventing electromagnetic signals in the external environment from affecting the detection accuracy of the electromagnetic water meter and ensuring that the detection accuracy of the water meter is within the standard. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A partial cross-sectional view of a NB-IoT Internet of Things water meter with low flow resistance from a first perspective of the present invention;

[0023] Figure 2 A partial cross-sectional view of a NB-IoT Internet of Things water meter with low flow resistance from a second viewing angle according to the present invention;

[0024] Figure 3 A stereoscopic diagram of a low flow resistance NB-IoT Internet of Things water meter from a first perspective of the present invention;

[0025] Figure 4 A stereoscopic diagram of a low flow resistance NB-IoT Internet of Things water meter from a second viewing angle according to the present invention;

[0026] Figure 5 This is a front view of a NB-IoT Internet of Things water meter with low flow resistance according to the present invention;

[0027] Figure 6 This is a cross-sectional view of a NB-IoT Internet of Things water meter with low flow resistance according to the present invention.

[0028] Markings in the figure: 1. Water meter body; 2. Protection tube; 3. Sealing tube; 4. Moving tube; 5. Pressure tube; 6. Heating plate; 7. Circulation tube; 8. Installation tube; 101. Detection tube; 102. Sealing tank; 301. Balance hole; 302. Internal thread; 303. Pressurization hole; 401. Auxiliary groove; 601. Installation groove. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0030] Embodiment 1

[0031] Reference Figure 1 - Figure 6 : A low flow resistance NB-IoT Internet of Things water meter, comprising: a water meter body 1, a core for installing an electromagnetic water meter, a cleaning component, arranged inside the water meter body 1, wherein: two cleaning components are provided, each cleaning component comprises a protection tube 2, a sealing tube 3, a moving tube 4, a balancing hole 301, a pressurizing hole 303 and a pressure tube 5, through which the inner wall of the detection tube 101 can be cleaned and scraped multiple times to avoid the generation of a large amount of algae or impurities adhering to the water meter, resulting in a decrease in the detection accuracy of the water meter, and ensuring stable operation, the water meter body 1 also includes The water meter body 1 includes a detection tube 101, and the detection tube 101 is embedded in the inner wall of the water meter body 1, two cleaning components are respectively threadedly connected to the outer walls of the two ends of the detection tube 101, the sealing tube 3 is threadedly connected to the inner wall of the protection tube 2, and the movable tube 4 is slidably embedded in the inner wall of the sealing tube 3. By moving the movable tube 4, the detection tube 101 can be scraped to improve the cleaning efficiency. The inner wall of the movable tube 4 fits against the inner wall of the detection tube 101, the balancing hole 301 and the pressurizing hole 303 are respectively opened at the outer walls of the two ends of the sealing tube 3, and the pressure tube 5 and the pressurizing hole 303 are connected to each other.

[0032] Reference Figure 1 - Figure 6: The inner walls of the ends of the two protection tubes 2 that are away from each other are provided with internal threads 302, and the ends of the two protection tubes 2 that are close to each other are threadedly connected to the outer walls of the two ends of the detection tube 101. The protection tube 2 can protect the mobile tube 4 and the core of the water meter and isolate the electromagnetic signal to ensure the working stability of the electromagnetic water meter. In actual use, the water meter body 1 is not wrapped to avoid affecting the data transmission due to the antenna being wrapped. The bottoms of the outer walls of the two protection tubes 2 are connected by openings to provide a mounting tube 8, and the inner walls of the bottom ends of the mounting tubes 8 are provided with mounting threads. The mounting tube 8 is located directly below the balancing hole 301, and an electromagnetic valve is embedded in the inner wall of the mounting tube 8. In order to facilitate the discharge of air from the sealing tube 3 and the mobile tube 4, facilitate the air to affect the movement of the mobile tube 4, and maintain the balance of air pressure, the electromagnetic valve is connected to the balancing hole 301. The inner wall of the mobile tube 4 is provided with an auxiliary groove 401, and the inner wall of the auxiliary groove 401 is sprayed with an anti-wear coating. The anti-wear coating A polyurethane coating is used, and the inner wall of the auxiliary groove 401 is attached to the outer wall of the sealing tube 3. A heating plate 6 is fixedly arranged at the bottom of the outer wall of the detection tube 101, and a sealing tank 102 is fixedly arranged at the bottom of the outer wall of the heating plate 6. Sufficient water is injected into the sealing tank 102 to absorb the heat of the circulation tube 7 to ensure continuous heating of the water meter body 1. An installation groove 601 is provided at the bottom of the outer wall of the heating plate 6. A circulation tube 7 is embedded in the inner wall of the sealing tank 102. The circulation tube 7 is connected to a high-speed running water pipe to ensure the flow of water source, constant temperature, and normal operation of the water meter under extremely cold conditions. The output end and input end of the circulation tube 7 are interconnected with an external water pipe, and the input end of the pressure tube 5 is interconnected with an external pressure supply device through a valve. Two mobile tubes 4 are attached to one side of the outer wall of the detection tube 101 with a grinding groove, and the ends of the mobile tubes 4 close to each other are attached to each other, and the two mobile tubes 4 and the detection tube 101 are on the same axis.

[0033] Working principle: First, the two ends of the sealing tube 3 that are far away from each other are installed to the detection pipeline through the internal thread 302 respectively, and then they are wrapped with waterproof tape to ensure the sealing. After the detection tube 101 of the water meter body 1 has been working for a period of time, a large amount of impurities will be attached to the inside of the detection tube 101. Then, the pressure tube 5 is used to conduct hydraulic pressure to the moving tube 4 which also has the function of a piston. The moving tube 4 is driven to move inside the sealing tube 3 through the pressurized hole 303, and then the moving tube 4 is driven to move inside the detection tube 101, so that the impurities attached to the inner wall of the detection tube 101 are removed. The solenoid valve inside the installation tube 8 is used to control the air volume inside the sealing tube 3 to ensure the stable movement of the moving tube 4, and the circulation tube 7 is used to keep the core of the meter warm and heat to avoid freezing and damage to the core of the meter.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A NB-IoT water meter with low flow resistance, characterized in that: include: A water meter body (1), used for installing the core of the electromagnetic water meter; A cleaning assembly is arranged inside a water meter body (1), wherein: two cleaning assemblies are arranged, each of the cleaning assemblies comprises a protective tube (2), a sealing tube (3), a movable tube (4), a balancing hole (301), a pressurizing hole (303) and a pressure tube (5); the water meter body (1) further comprises a detection tube (101), and the detection tube (101) is embedded in the inner wall of the water meter body (1); the two cleaning assemblies are respectively threadedly connected to the outer walls of both ends of the detection tube (101); the sealing tube (3) is threadedly connected to the inner wall of the protective tube (2); the movable tube (4) is slidably embedded in the inner wall of the sealing tube (3); the inner wall of the movable tube (4) is attached to the inner wall of the detection tube (101); the balancing hole (301) and the pressurizing hole (303) are respectively opened at the outer walls of both ends of the sealing tube (3); and the pressure tube (5) and the pressurizing hole (303) are arranged to communicate with each other; The bottoms of the outer walls of the two protection tubes (2) are connected to a mounting tube (8) through an opening, and the inner walls of the bottom ends of the mounting tubes (8) are provided with mounting threads; The mounting tube (8) is located directly below the balancing hole (301), and an electromagnetic valve is embedded in the inner wall of the mounting tube (8), and the electromagnetic valve and the balancing hole (301) are connected to each other; The input end of the pressure pipe (5) is connected to an external pressure supply device via a valve.

2. The NB-IoT Internet of Things water meter with low flow resistance as claimed in claim 1, characterized in that: An inner thread (302) is provided on the inner walls of the ends of the two protection tubes (2) that are away from each other, and the ends of the two protection tubes (2) that are close to each other are threadedly connected to the outer walls of the two ends of the detection tube (101).

3. The NB-IoT Internet of Things water meter with low flow resistance as claimed in claim 2, characterized in that: The inner wall of the movable tube (4) is provided with an auxiliary groove (401), and the inner wall of the auxiliary groove (401) is sprayed with an anti-wear coating, and the inner wall of the auxiliary groove (401) is in contact with the outer wall of the sealing tube (3).

4. The NB-IoT Internet of Things water meter with low flow resistance as claimed in claim 3, characterized in that: A heating plate (6) is fixedly arranged at the bottom of the outer wall of the detection tube (101), a sealing tank (102) is fixedly arranged at the bottom of the outer wall of the heating plate (6), and a mounting groove (601) is provided at the bottom of the outer wall of the heating plate (6).

5. The NB-IoT Internet of Things water meter with low flow resistance as claimed in claim 4, characterized in that: A circulation pipe (7) is embedded in the inner wall of the sealed tank (102), and the output end and the input end of the circulation pipe (7) are connected to an external water pipe.

6. The NB-IoT Internet of Things water meter with low flow resistance as claimed in claim 5, characterized in that: A grinding groove is provided on one side of the outer wall of the two movable tubes (4) which is in contact with the detection tube (101).

7. The NB-IoT Internet of Things water meter with low flow resistance as claimed in claim 6, characterized in that: The ends of the movable tubes (4) that are close to each other are arranged to fit together, and the two movable tubes (4) and the detection tube (101) are located on the same axis.

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