Factory Price Prepayment Wireless Remote Smart Reading Gas Meter

The same technology used in the gas meter as in the steam engine allows the gas meter to continue to move when the membrane and hard core move to the leftmost or rightmost position. Specifically, two sets of bellows and thin films are used, and their hard cores are connected to the same vertical shaft with a rod. There are two cranks on this shaft, and the difference between the two cranks is also 90 degrees, making the movement of the two hard cores half a step different. When one moves to the end, the other is right in the middle and never stops. The upper part is the crankshaft and connecting rod that you can see when looking straight up, while the lower part is looking down from top to bottom. From here, it can be seen that the crankshaft OC and OC 'are exactly 90 degrees apart. In fact, connecting rods AB and BC are connected to the hard core on the left, and connecting rods A'B 'and B'C' are connected to the hard core on the right. We can also clearly see that the rotation of the crankshaft drives the roller counter, thereby accumulating the amount of air consumed.

Although the outer surface of the roller is smooth and only has numbers, in fact, there is a circle of wheels (some hidden inside the number wheel) on both sides of each digit, and there is a pinion gear meshing with two number wheels next to the adjacent two digits. However, the pinion has a special shape and is usually slippery, and only drives the higher bit to rotate together during carry out. Although the principle is not complex, it is difficult to describe in a single sentence, and it is not easy to describe its actions graphically. The principle will not be explained here.