Damp-proof electromagnetic flow meter

Abstract

The invention discloses a damp-proof electromagnetic flow meter. The flow meter comprises a main body, a connecting shaft is welded to the bottom of the main body, a flow guide pipe is fixedly connected to the bottom of the connecting shaft, a flow display screen is arranged on the outer surface of the main body, a fixing block is fixedly connected to the outer surface of the main body, and a protection assembly and a wiring terminal are connected to the side, away from the main body, of the fixing block. According to the damp-proof electromagnetic flow meter, through the arrangement of a first protective shell, a second protective shell, a first clamping block and a second clamping block, water is prevented from entering the interior of the protection assembly and contacting the wiring terminal, the first protective shell and the second protective shell are conveniently opened and closed through an arranged clamping mechanism, and the situation that a common device is fixed by bolts,the bolts are directly exposed to an external thread and can be easily damped and rusted, and thus the device is difficult to disassemble is avoided.

Description

technical field [0001] The invention relates to the field of flowmeters, in particular to a moisture-proof electromagnetic flowmeter. Background technique [0002] Simply put, the electromagnetic flowmeter is composed of a flow sensor transmitter. The installation requirement of the electromagnetic flowmeter is that it must be installed at the lowest point of the pipeline or the vertical section of the pipeline, but it must be in the case of a full pipe. The requirement for the pipe section is 5D in the front and 3D in the back, so as to ensure the use of the electromagnetic flowmeter and the accuracy requirements. [0003] In response to this, Chinese Patent No. CN204694303U proposes an electromagnetic flowmeter, which is suitable for measuring various media with different characteristics, reducing the cost and complexity of the system; Chinese Patent No. CN201653472U proposes an electromagnetic flowmeter, which uses a shorter measuring tube, And reduce the distance betwee...

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Problems solved by technology

[0003] In response to this, Chinese Patent No. CN204694303U proposes an electromagnetic flowmeter, which is suitable for measuring various media with different characteristics, reducing the cost and complexity of the system; Chinese Patent No. CN201653472U proposes an electromagnetic flowmeter, which uses a shorter measuring tube, And reduce the distance between the two electrodes, and the coil can be consistent with the small-diameter coil to reduce the weight and cost of the entire electromagnetic flowmeter; Chinese patent No. CN209264032U proposes an electromagnetic flowmeter, which solves the problem of electromagnetic flow Most of the electromagnetic flowmeters are fixed on the pipeline by bolts and nuts, and disassembly and assembly are more troublesome.

However, none of the above patents paid attention to the moisture-proofing of the terminals of the electromagnetic flowmeter. The electromagnetic flowmeter is usually installed on the liquid pipeline, and the moisture is relatively large, so it is easy to make the connection between the terminal and the external wire get wet and malfunction. Bolts are usually used to install the protective moisture-proof casing on the terminals of the electromagnetic flowmeter. On the one hand, the installation and disassembly are cumbersome, and on the other hand, the bolts are usually directly exposed to the outside world, which is easy to be damp and rusted, making it difficult to disassemble.

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