Combined type automatic caution alarming measuring instrument for deep well water level

Abstract

The invention provides a combined type automatic caution alarming measuring instrument for a deep well water level. The combined type automatic caution alarming measuring instrument is provided with an anti-folding device, an anti-rotation mechanism and an electric control device, wherein the anti-folding device is composed of two anti-folding pin rollers (3) which sleeve pin roller core shafts (9) which are arrayed up and down and are transversely arranged on a supporting frame (4) in parallel; the outer end of a steel rule cable (L) passes through a gap between the two anti-folding pin rollers (3) to be connected with a water level probe (8); an anti-rotation pin (5) of the anti-rotation mechanism is matched with a pin hole in the supporting frame (4), and can be ejected against a winding barrel end panel (1) of a steel rule winding barrel (21); the electric control device comprises an electric control box (16), a power supply switch (15), a water level indication lamp (18) and a sounder (17), is arranged on the outer side of a sealed panel (14) of the steel rule winding barrel (21), and is connected by a lead wire (X); the electric control box (16) is internally provided with an integrated circuit block (25) and is internally provided with an analogue switch circuit (26), an amplification circuit (27) and an oscillating circuit (28); and the inner end of the steel rule cable (L) is connected with the electric control box (16). The combined type automatic caution alarming measuring instrument has low power consumption, high alarming sensitivity, accurate measurement of the water level and high working efficiency.

Description

technical field [0001] The invention relates to a deep well measuring facility, in particular to an underground water level measuring instrument. Background technique [0002] At present, in the process of sinking and drilling hydrogeological wells, groundwater needs to be continuously pumped out, and the water level in the wellbore continues to decrease with the pumping process, and the rate of change is relatively fast. The upper and lower layers of the wellbore are replenished to form a funnel, coupled with the water jetting from the hole wall, it is difficult to measure the real dynamic water level. Generally, a straight rod is used to extend into the wellbore, or a rope is dropped into the wellbore, and the water level is measured by listening to the sound or looking at the mark depth. For deep wells and occasions where accurate water level data is required, accurate measurement of groundwater level data has become a cumbersome and thorny problem. However, due to the...

AI Technical Summary

Problems solved by technology

However, due to the high cost of single-piece research and few professional research units, there is no dedicated accurate water level measuring instrument in China.

Images