Probe needle of water boiler

Abstract

The invention discloses a probe needle of a water boiler. The probe needle comprises a base and a metal needle. The metal needle is mounted on the base. The probe needle is characterized in that a plurality of scrapers are mounted on the metal needle, metal sheets are stamped to form the scrapers, mounting holes are formed in the scrapers, the diameter of each mounting hole is larger than that of the metal needle, the metal needle is penetratingly nested in the mounting holes of the scrapers, and auxiliary fins which push the scrapers to swing or rotate are further arranged on the scrapers. The probe needle has the advantages that the multiple scrapers on the probe needle can swing or rotate under the pushing action of steam or water flow or the like, the scrapers which move at the moment can repeatedly rub with the probe needle, accordingly, foreign matters such as water scales on the surface of the probe needle can be scraped off, or foreign matters such as water scales cannot be generated easily under the irregular rotation actions of the scrapers, and malfunction or failure of the probe needle due to formation of the water scales and the like can be prevented; the probe needle with the structure can keep in a normal working state for a long time without application of external force.

Description

technical field [0001] The invention relates to a water boiling machine accessory, in particular to a scale-proof water boiling machine detection needle. Background technique [0002] Probing needles are required on many water-using equipment, such as water level detection needles, temperature detection needles, etc. The failure of these detection needles may cause damage to the entire equipment. For example, in terms of water level detection needles, mechanical float design was used to control The water level of the water tank has low sensitivity, is prone to failure, and the product is not safe to use. Later, electronic technology was used to control the water level. For example, the combination of weak electric water level switch (that is, water level probe), solenoid valve, single-chip microcomputer, circuit board, etc. is commonly used to control the water level. water level. Such as the disclosed container water level detection probe of Chinese patent CN99245341.O is...

AI Technical Summary

Problems solved by technology

Although this detector has a certain use effect, its disadvantage is that most of the existing water level probes are made of chrome-plated metal, and the heating temperature of workplaces such as water boilers is relatively high. When the hardness of the water is high or the water quality is poor, The probe will be full of scale in a short period of time, resulting in false detection or malfunction of the probe. Once the water level probe is misdetected or malfunctions, it is likely to cause the equipment to dry due to lack of water, damage the heating tube, and even cause safety hazards. ACCIDENT

As for the temperature probe, if the water quality is poor or it is used for a long time, the probe will soon be covered with scale, resulting in false detection or failure of the probe, causing the heating tube to continue to work and heat, damaging the entire machine, and even causing a safety accident

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