Water meter with temperature self-adaptive sealing structure

Abstract

The invention relates to a water meter, and particularly discloses a water meter with a temperature self-adaptive sealing structure, which comprises a shell, a flange, a meter body, a protective cover, a connecting pipe and a bearing, the connecting flange is fixedly connected with the end surface of the outer end of the connecting pipe, a cylinder body is arranged in the connecting pipe, and thecylinder body is fixedly connected with the inner side wall of the connecting pipe; a limiting plate is arranged in the flange, one side of the limiting plate is fixedly connected with the side face of the outer side of the cylinder body, a piston rod is sleeved with the cylinder body, and a movable plate is fixedly connected to the outer end of the piston rod; and a sealing gasket is arranged atthe outer end of the flange, and one side of the sealing gasket is clamped to the top end of the limiting plate. According to the sealing structure, the external temperature can be detected through the internal temperature sensing device, when the external temperature changes, the cylinder body can drive the movable plate to move through the piston rod, and therefore the sealing gasket can be clamped or loosened, compensation can be conducted on the sealing gasket due to temperature changes, and the adaptability of the sealing structure is enhanced.

Description

technical field [0001] The invention relates to a water meter, in particular to a water meter with a temperature self-adaptive sealing structure. Background technique [0002] A water meter is an instrument for measuring water flow. Most of them measure the cumulative flow of water. They are generally divided into two types: volumetric water meters and speed water meters. They originated in the United Kingdom. The development of water meters has a history of nearly two hundred years. , you should first estimate the size and flow range of the flow normally used, and then choose the water meter of the specification with the usual flow closest to the value as the first choice. [0003] The traditional water meter has a simple structure, and it is easy to accumulate dust on the mirror surface of the meter body when it is placed for a long time. It needs to be cleaned during use, which is troublesome. Moreover, some current non-magnetic sensor water meters have simple functions a...

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Problems solved by technology

[0003] The structure of the traditional water meter is simple, and it is easy to accumulate dust on the mirror surface of the meter body when it is placed for a long time. It needs to be cleaned during use, which is troublesome. Moreover, some current non-magnetic sensor water meters have simple functions and are not convenient for self-adaptive sealing of the water meter.

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