Double-floating-ball floating ball liquid level meter with replaceable measuring range

Abstract

The invention discloses a double-floating-ball floating ball liquid level meter with a replaceable measuring range. The double-floating-ball floating ball liquid level meter is mainly characterized inthat a measuring mechanism is composed of a flange shell, a short ball rod and floating ball, and a long ball rod and floating ball; a shaft hole of a short ball rod shaft sleeve (21) is provided with a short ball rod shaft sleeve key groove (22) communicated with the side end surface; the long ball rod is composed of a left side rod, a right side rod and a U-shaped long ball rod shaft sleeve (41). A side arm shaft hole of the U-shaped long ball rod shaft sleeve is provided with a long ball rod shaft sleeve key groove (42) communicated with the outer side end surface of the side arm; a firstshaft rod key groove (6a) and a second shaft rod key groove (6b) are respectively formed in the front end part of a signal controller shaft rod (6); a first key block (61a) is arranged on the first shaft rod key groove and is matched with the key groove of the short ball rod shaft sleeve, so that the short ball rod shaft sleeve is fixedly connected with the shaft rod; or a second key block (61b) is arranged on the second shaft rod key groove and is matched with the key groove of the long ball rod shaft sleeve, so that the U-shaped long ball rod shaft sleeve is fixedly connected with the shaftrod; and a signal conversion standard value of an electric control device is controlled to perform range conversion.

Description

technical field [0001] The present invention relates to liquid level transmitters / level gauges, particularly float level gauges. Background technique [0002] The float level gauge is composed of a measuring mechanism and a signal controller. The prior art float level gauge is composed of a measuring mechanism and a signal controller. The measuring mechanism is composed of a floating ball, a ball rod and a flange shell. [0003] The shaft cylinder of the signal controller is fixedly connected with the flange shell, the shaft of the signal controller extends into the flange shell, one end of the ball rod is fixedly connected with the floating ball, and the other end of the ball rod is connected with the shaft of the signal controller in the flange shell. Rod fixed connection. When working, the flange shell is fixedly connected with the tank body through the flange at the front end, the ball rod extends into the tank body, the float ball is placed in the liquid medium of the...

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of the above-mentioned prior art is that because the flange shell of the float level gauge measuring mechanism is connected to the tank body, the float level gauge cannot be disassembled and replaced when the tank body has a medium; When it is larger, that is, when the range of the float level gauge installed on the tank is exceeded, a new float level gauge with a larger range has to be replaced, which is not only time-consuming and laborious, but also costs a lot to replace the float level gauge

[0005] In addition, as the float moves up and down with the liquid level in the tank, bending force and fatigue damage will occur between the float directly welded on the end of the club and the club. Coupled with the corrosiveness of the medium, if things go on like this, floating The connection between the ball and the club is broken, and the floating ball falls off, which affects the service life and increases maintenance

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