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Description
The utility model relates to a gas meter detecting device, in particular to a gas meter cutting and sealing detecting device.
Background of the invention
With the improvement of living standards and the strengthening of environmental awareness, people's daily cooking fuel has been seriously wasted from waste of wood, coal and other resources, and the conventional energy sources with serious pollution have been converted into natural gas and gas, and even clean energy such as electricity. Here, because of the need to measure the gas, it is necessary to use the gas meter. With its automatic accumulation function, those who use natural gas or pipeline gas can easily know how much gas is used so that they can be consumed monthly. The gas cubic meters are paid. In addition, the prior art gas meter has been able to implement remote meter reading or prepaid functions, making the use of gas more convenient.
However, as a metering device, the gas meter is a city gas with flammable, explosive and even toxic characteristics. Once a leak occurs in the surrounding air to reach the explosion limit, it will cause dangers such as burning, explosion and even poisoning. As a compulsory verification measuring instrument, the gas meter is not only used for payment settlement, but also relates to the safety of life and property. Therefore, the sealing of the gas meter is particularly important in all major technical indicators. The prior art regarding the qualified inspection of the seal is often embodied by parameters, which is not intuitive enough, and thus the efficiency is not high.
Summary of the invention
In view of this, the present invention provides a gas meter cut-off sealing detecting device for visually displaying the detection result in order to improve the detection efficiency, in view of the technical problems in the prior art that cannot directly judge the detection result and the detection efficiency is not high.
The technical solution of the utility model provides a gas meter cutting and sealing performance detecting device of the following structure, comprising an air pump, a pressure gauge, a solenoid valve, a control module and a water container, wherein the air pump passes through the pressure gauge and the electromagnetic valve in sequence. And communicating with the input port of the gas meter to be tested, the output port of the detected gas meter is in communication with the water container, and the control module is electrically connected to the electromagnetic valve. 
Preferably, a pressure regulating valve for regulating the pressure input to the gas meter is connected between the air pump and the pressure gauge. Because the cut-off seal is required to be detected under a certain pressure, if the air pressure is too high, it may break through the motor valve of the gas meter and disable it. The control module comprises a single chip microcomputer and a relay, wherein the relay is electrically connected to the single chip microcomputer and the electromagnetic valve respectively, and the single chip device controls the opening and closing of the electromagnetic valve through the relay. Control is more convenient. The control module further includes an LCD screen, and the single chip is electrically connected to the LCD screen, and the related parameters are displayed on the LCD screen.
Gas meter cut-off sealing detecting device
There is no limit to creativity, and the instrument is invented. Today, I will introduce a national invention patent for the invention - the gas meter cut-off seal detection device. The patent was applied by Ningbo Tianxin Instrument Co., Ltd. and was authorized to be announced on February 15, 2017.
The figure is a schematic diagram of the gas meter cutting and sealing detection device of the utility model
Compared with the prior art, the utility model has the following advantages: according to the utility model, the gas source generated by the air pump passes through the connecting pipe and sequentially passes through the pressure gauge and the electromagnetic valve to reach the input port of the gas meter, and passes through the control module. Control the opening and closing of the solenoid valve. When the gas meter is cut off, the solenoid valve is opened. The origin of a certain pressure enters the gas meter. At this time, the motor valve of the gas meter is closed. If the sealing is good, the output of the gas meter is There is no air source output at the port. In order to obtain the detection result more intuitively, the output port of the gas meter is connected to the water container. If the sealing performance is good, no air bubbles will be generated in the water container, that is, it is qualified, and vice versa. The utility model can directly convert the airtightness detection into observing whether the water container is bubbled, so that the detection result is more intuitive, thereby improving the detection efficiency.