[Instrument latest patent] A type of cassette water meter opening and closing valve detection device

[Chinese instrument network meter patent] creative limit, instrumentation invention. Today, we introduced a national invention-issued patent—a cassette water meter opening and closing valve checking device. The patent was applied by Shandong Chenhui Electronic Technology Co., Ltd. and was authorized to be announced on March 15, 2017.

Description of the Invention The utility model relates to a water meter anti-demolition, in particular to a card type water meter opening/closing and valve detection device.

BACKGROUND OF THE INVENTION Compared with traditional water meters, the use of IC card water meter technology can bring about many new changes and bring great benefits to users. With the increasing shortage of water resources, rising water prices, and increasingly heavy water charges, people began to value tap water that was not valued in the past, and water conservation awareness has continued to increase. However, many users do not work hard to “save water”, but they make a fuss about “saving costs” and use existing loopholes and weaknesses of IC meter manufacturers to attack. Then there are some defects in the design of some manufacturers of IC card water meters, giving users the opportunity. At present, the commonly used method is to destroy or open the water meter housing, cut off the power supply of the water meter, and make the meter in the off state, so that free use of large amounts of water is free and unscrupulous.

At present, most of the water meter housings of water meter manufacturers use plastic housings, which causes the defects of the housings to be easily destroyed. To prevent such an opportunity, most manufacturers use super capacitors, and the normal state capacitors are in a charged state. The water meter housing After being destroyed, the power supply is cut off and the super capacitor functions instantly. The capacitor discharges power to the microprocessor, thereby closing the valve of the water meter and reducing the waste of water resources. However, after the super capacitor is used, the power consumption of the water meter increases, and the power is easily damaged due to liquid leakage. Shortcomings such as shortened battery life.

Summary of the Invention In order to solve the above-mentioned technical problems, the present invention provides a card type water meter opening and closing valve detection device.

To achieve the aforesaid objective, the technical solution adopted by the utility model is: a card type water meter opening and closing and closing valve detection device, which is characterized by comprising: a water meter housing, a reed switch, a reed switch holder, and the dry The reed fixing frame is disposed inside the water meter housing, and the reed pipe is fixed on the inner wall of the water meter housing through a reed pipe fixing frame, and the magnet is disposed on the outer wall of the water meter at the position of the reed pipe. Magnetic induction with dry yellow tubes.


The figure shows the overall structure of the utility model
The reed switch holder of the present invention is filled with a sealant. The working principle of the utility model is: using the reed switch to be susceptible to the magnetic induction characteristic when detecting the switch, placing the magnet above the housing of the reed switch, the normal reed switch works in the closed state, when the user illegally opens the battery compartment, The magnet is separated from the reed switch and the reed switch is changed to a normally open operating state. After the microprocessor detects this state, the valve is closed automatically.

The utility model has the beneficial effects that the utility model has the advantages of high sensitivity, not easy to damage the electric meter due to liquid leakage, and an increase in battery life due to the design of a reed pipe, a magnet and other devices. The utility model has the advantages of simple structure, small volume and high speed. It has the advantages of long working life, low power consumption, high sensitivity, etc. At the same time, it has the characteristics of strong anti-load and impact resistance and high working reliability.

For more information, please download the full specification of the patent.

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