JPH0718220U - Groundwater level meter - Google Patents

Abstract

(57) [Summary] [Objective] The present invention is a groundwater level measuring instrument for measuring the groundwater level in a borehole. [Structure] Fig. 3 Dry battery treble buzzer proximity switch Magnet float is installed inside with a fixed screw and a sound passage hole is provided to reliably transmit treble buzzer sound.

Description

[Detailed description of the device] [Applications of the present invention]

 Utilization of underground resources is becoming more and more serious. Especially for groundwater, it is especially important as domestic and industrial water.

[Prior art]

 A water level measuring instrument for the same purpose is manufactured and sold on the market. Figure 1 (Conventional water level measuring instrument) A device that emits a buzzer sound at hand, so two wires are required inside the hanging tape, and it is used as a tool. Depending on the frequency, the wire was frequently broken. Every time it goes up and down, it swings and seems to be a wire breakage due to metal fatigue.I ・ In the surface of well water, iron components contained in groundwater, dust during boring, etc. are floating, and in the case of electrode type switch However, the water was not drained well and kept ringing frequently, which hindered the measurement work.

[Points to be solved by the device]

 This groundwater level measuring instrument is an improved design of the above two points. A. Improvements The vocal tube, which is often used in ships, can transmit a small sound to a long distance. The same is true for wells. It has been improved so that the buzzer sounds at the surface of the groundwater that should not use two wires. B) Improvements When the float inside the measuring instrument lands on the water surface, buoyancy acts to activate the switch and sound the buzzer.

[Means of solution]

When the water level measuring instrument suspended on the graduated tape is dropped onto the measuring well and the water level measuring instrument reaches the surface of the water, the switch operates due to the buoyancy of the float and a buzzer sound is generated. Can measure the current water level

[Explanation of the present invention] (Fig. 2) When the water level measuring instrument reaches the surface of the water, the float works and the magnet directly connected to it approaches the switch. The dry battery and buzzer installed on the base work and the buzzer sounds. To occur. The buzzer sound reaches the pipe head through the sound passage hole. It is possible to measure the large separation to the water surface by the numerical value graduated on the hanging tape. Figure 3 The shaded part of the outer cylinder is completely sealed, so even if the measuring instrument is submerged on the water surface, the internal electrical system There is nothing wrong with this. C Fig. 4 Each part attached to the base is fixed to the outer cylinder in Fig. 3 by a fixing screw and used for maintenance. D) Because it is a portable type, it is possible to protect-by moving the stopper when moving and after measurement.

[Brief description of drawings]

FIG. 1 Conventional water level measuring device

[Figure 2] Plane perspective

[Figure 3] Outer cylinder

[Fig. 4] Side perspective

[Explanation of symbols] Dry battery High tone buzzer Proximity switch Magnet float Sound passage hole Stopper fixed screw base

Claims (1)

[Scope of utility model registration request] 1. A water level measuring instrument capable of activating the switch by the buoyancy of a float and detecting the water surface position by the sound of a high-pitched buzzer.