| 摘要 |
The bellows gas meter is mainly composed of a single assembly. It is designed to facilitate the addition of an electronic system, at any time, despite being a bellows gas meter. The fact that the outlet funnel (6) is designed to cover the gears (20, 21 , 22, 23) and the bakelite housing (11) prevents any residue or refuse along with gas influx to cause dysfunction of gears (20, 21' 22, 23) and valve caps (8). The brackets ( 16) transmitting motion to the valve caps (8) operate on the bottom surface of inner housing (4). The motions of valve caps (8) are directly provided by valve gears (21). |
