[Instrument latest patent] A non-magnetic induction water meter and its use method

[Chinese instrument network meter patent] creative limit, instrumentation invention. Today we introduced a national invention-invented patent—a non-magnetic induction water meter and its use method. The patent was applied for by Fuzhou Dongri Information Technology Co., Ltd. and was authorized to be announced on March 20, 2018.

Content Description

The invention relates to the field of fluid measuring device manufacturing, in particular to a non-magnetic induction water meter and a using method thereof.

Background of the invention

At present, most of the smart electronic water meters are based on the retention of the original mechanical watch. In addition to the electronic metering display part, the accumulated water consumption of the water meter is simultaneously displayed on the mechanical character reading display and electronic meter reading. In addition to the installation of conventional data acquisition, processing, and storage modules, another wireless transmitter and receiver device is set up to receive signals through a remote receiver. This type of meter does not require laying lines and circuit maintenance, and is easy to install. The non-magnetic induction water meter uses a non-magnetic sensing method, which effectively solves the uncountable problem of the traditional water meter susceptible to magnetic interference, and has a longer service life. For example, CN 02263143 .7 discloses a non-magnetic sensing intelligent water purification water meter. The non-magnetic sensing intelligent water purification water meter installs a non-magnetic sensor with an inductive flow on the impeller to sense water consumption. . However, the rotation speed of the impeller is relatively fast, the working load of the sensor is large, the electrical components in the water meter are easily damaged, and the self-purification function of the water meter is not perfect. For long-term use, the impeller can easily grow algae and affect the normal rotation of the impeller, resulting in the meter not being able to be measured normally.

Summary of the Invention

In order to solve the above technical problems, the present invention provides a non-magnetic induction water meter and its use method. The non-magnetic induction water meter and its use method are improved on the basis of the existing smart water meter. The non-magnetic induction water meter adopts a non-magnetic sensing method, which effectively solves the uncountable problem caused by magnetic interference and has a longer service life.

The figure shows the overall structure of the invention

The technical solution adopted by the present invention is as follows: a non-magnetic induction water meter includes a case, a metering mechanism and a counting mechanism disposed in the case; and the non-magnetic induction water meter also includes a sensing system capable of sensing water consumption and wireless signals to use water. In the form of a wireless transmitting and receiving device transmitted to a repeater or a meter reading device; the sensing system includes a metal plate bent in an arc shape provided on the counting mechanism, and a pair of metal plates for detecting the rotation change of the metal plate. A piezoelectric inductive coil, a processor that integrates signals sensed by the inductive coil, and a memory module for storing processor information.

The counting mechanism includes a dial disposed on the upper end surface of the watch case, a liquid crystal screen disposed on the dial to display the water consumption, a plurality of dials disposed on the upper end of the dial, and the dial is disposed on the dial and cooperates with the dial A plurality of pointers for observing the water rate and a plurality of pointer gears arranged on the lower end face of the dial to drive the pointer to rotate, the pointer gears are meshed in turn and the speed ratio thereof is sequentially 10:1; the dial, the pointer, and the pointer gear are set coaxially The shaft of the indicator gear is fixedly connected with the axis of the pointer through the dial and the dial in turn; the metal sheet is disposed on the side wall of the pointer.

The metering mechanism includes an impeller box disposed in the case, an impeller horizontally disposed in the impeller box and driven by the water flow to rotate, and an impeller gear disposed above the impeller and fixedly connected to the impeller rotation shaft. The side wall of the impeller box is symmetrically disposed The inlet and outlet ports; the impeller gear meshes with the first position indicator gear and drives it to rotate.

Among them, the inductance coil is arranged on the dial, and the angle formed by the connection lines of the two inductance coils and the axis of the pointer is 90 degrees. When the distance between the inductor coil and the metal sheet is d=R/1 .4, the inductance induced by the inductor coil is the greatest, where R is the diameter of the inductor coil. The liquid crystal screen, the wireless receiving and transmitting device, the inductor coil and the storage module are respectively connected with the processor electrical signals, and the water amount sensed by the inductor coil is transmitted to the processor. The non-magnetic induction water meter also includes a battery provided on the case for supplying a non-magnetic induction water meter and a detection device capable of detecting a circuit failure and detecting a battery voltage; the detection device is respectively electrically connected with a buzzer and a warning light; when the circuit occurs When a fault occurs, the buzzer sounds an alarm; when the voltage of the battery is less than the minimum voltage set by the detection device, the warning light emits a light alarm.

A method for using a non-magnetic induction water meter, using a non-magnetic induction water meter, includes the following steps: Step 1: The water enters from the inlet port of the impeller box, the kinetic energy carried by the water flow drives the impeller to rotate, and the impeller gear fixedly connected to the impeller shaft It also rotates, the impeller gear drives the first position of the indicator gear to rotate, the first position indicator gear drives the next position indicator gear to rotate, and in turn transmits the pointer gear to the last position, at the same time, the pointer also rotates accordingly. Step 2: The arc-shaped metal plate disposed on the side wall of the last pointer rotates with the rotation of the pointer, and the two piezoelectric inductors that cooperate with the metal plate change the induced current through the rotation of the pointer, and the processor senses. The induced current of the inductor coil changes, and sends the rotation number information to the LCD display water consumption, and at the same time stores the rotation speed information to the storage module; Step 3: When the wireless receiving and transmitting device receives the meter reading signal, it transmits the meter reading signal to the The processor, the processor transmits the information stored in the storage module to the management system through the wireless transmitting and receiving device.

A non-magnetic induction water meter fault emergency method uses a non-magnetic induction water meter, including the following indiscriminate steps: Step 1: When a circuit fault occurs in a non-magnetic induction water meter, the detection device detects a circuit fault and transmits an electrical signal to the buzzer. Make it make an audible alarm; Step 2: When the battery voltage is less than the value set by the detection device, the detection device control warning light is on and a light alarm is issued.

The present invention has the following beneficial effects: 1. The present invention has strong anti-interference ability, and there is no problem that the magnetic sensing method is susceptible to magnetic interference and light spot sensing and easily receives strong light interference, and can be installed in places where radiation is strong or magnetic interference is strong. . 2. The induction coil used in the present invention is sensitive and sensitive, can monitor the water consumption of the water meter in real time, and can promptly alarm when the water meter fails, reminding residents to replace it, and avoid inconveniencing the user's life. 3. The electric valve used in the present invention can close the water pipe in time when a fault occurs, and stop water use, so as to prevent the water meter from being destroyed by people with ulterior motives. 4. The present invention adopts a wireless receiving and transmitting device connected with the management end, which can record the water consumption remotely and does not need to perform indoor meter reading, which is convenient for the residents and greatly reduces the workload of the meter reading unit. 5. The diameter of the inductor coil of the present invention and the distance from the metal sheet are set by d=R/1.4, which can more sensitively detect the rotation of the pointer to avoid occurrence of induction error.

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