Steel ruler water level gauge capable of preventing well wall water flow interference

By installing a waterproof cover and a vent at the front end of the metal probe housing of the steel tape water level gauge, the problem of inaccurate detection caused by water flow interference from the well wall is solved, achieving higher detection accuracy and a simplified operation process.

CN223966127UActive Publication Date: 2026-03-03CHINA GEOLOGICAL SURVEY HARBIN NATURAL RESOURCES COMPREHENSIVE SURVEY CENT
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Patent Information

Application Number
CN202520820873.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-27
Publication Date
2026-03-03
Estimated Expiration
2035-04-27

AI Technical Summary

Technical Problem

Existing steel ruler water level gauges are inaccurate when measuring dynamic water levels due to interference from water flow around the well wall, requiring repeated testing to ensure the accuracy of the results.

Method used

A steel ruler water level gauge was designed to prevent interference from water flow in the well wall. The metal probe housing has a side hole at the front end and is fitted with a waterproof cover. The waterproof cover has a vent hole to prevent water flow in the well wall, and at the same time, an exhaust channel is formed between the waterproof cover and the metal probe housing.

Benefits of technology

It effectively prevents the influence of water flow on the well wall on the test results, improves the accuracy of the test, and ensures that the test probe can make smooth contact with the groundwater surface, reducing the need for repeated testing.

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Abstract

The technical scheme relates to the field of hydrology and water resource equipment, in particular to a steel ruler water level gauge capable of preventing well wall water flow interference, which comprises a metal probe shell, and the rear end of the metal probe shell is fixedly connected with a steel ruler cable measuring rope; the end part of the front end of the metal probe shell is open, a plurality of side holes are uniformly formed in the side wall of the front end of the metal probe shell at intervals, the outer side of the front end of the metal probe shell is fixedly sleeved with a waterproof cover, the end part of the front end of the waterproof cover is open, and a plurality of air holes are formed in the waterproof cover. And the air holes and the side holes are arranged at intervals along the circumferential direction of the metal probe shell. The utility model has the beneficial effects that by arranging the waterproof cover, water flow on the well wall can be effectively prevented from entering the metal probe shell from the side hole to influence the detection of the detection probe, so that the accuracy of a detection result is improved; meanwhile, the vent holes can prevent air in the waterproof cover from being discharged and preventing the detection probe from being in contact with the underground water surface.
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