CN201731921U - Water level self-recording instrument inside piezometer tube of reservoir dam - Google Patents

Abstract

The utility model discloses a water level self-recording instrument inside a piezometer tube of a reservoir dam, which comprises a rectangular case (1), a transparent observation window (2) and a gravity floater (3). A suspension rope (4) is connected to the upper end of the gravity floater (3). The water level self-recording instrument is characterized in that a self-recording clock (5) is fixed into the rectangular case (1), self-recording paper (6) is wound on the self-recording clock (5), a lever type self-recording pen (8) is mounted on a fixing rod (7) of one side of the self-recording clock (5), and the upper end of the suspension rope (4) sequentially wound around a turning pulley (10) and a balance pulley (11) is connected at the end of a stretching arm of the lever type self-recording pen (8). The self-recording instrument is high in work efficiency, simple in structure and convenient in operation and favors dynamic analysis of water level due to capability of automatically recording a curve of the water level changing along with time. In addition, recording graduations are amplified as the stretching arm of the lever type self-recording pan is smaller than a recording arm, thereby leading measurement data to be more accurate and reading to be easier.

Description

Water level self recording instrument in the reservoir dam piezometric tube

Technical field

The utility model relates to the instrument in a kind of reservoir engineering operational management, belongs to the improvement of piezometric level observation device, and water level self recording instrument in specifically a kind of reservoir dam piezometric tube is mainly used in the water-level observation and the analysis of reservoir dam piezometric tube.

Background technology

Various large, medium and small type reservoirs have critical role in industrial and agricultural production and water supply industry, therefore, having managed reservoir is an important process of water conservancy administration department.In the reservoir operational management, wherein an important process is exactly the security monitoring to dam, to guarantee the safe operation of reservoir.In security monitoring to dam, wherein saturation observation that important test item is exactly a dam body.Saturation observation is to realize by the SEA LEVEL VARIATION that detects in the piezometric tube.Piezometric tube comprises body and the pipe lid that is buckled on the mouth of pipe constitutes, and the mouth of pipe is above the ground level, and surface water can not flow in the body, so the water in the body can only be infiltration, and the piezometric tube SEA LEVEL VARIATIONS DURING, the safety management that can be dam provides foundation.At present, the method that detects SEA LEVEL VARIATION in the piezometric tube adopts graduated lifting rope to measure mostly, is that weight is arranged on lifting rope, after weight the water surface, and the length of record lifting rope, this method is simple, but inaccurate, can not write down the time of SEA LEVEL VARIATION; The use that also has " depth measurement clock ", " simple and easy electrical long distance water level recorder " are observed, these two kinds of instruments, and in observation, efficient is low, labour intensity is big, simultaneously, the time that can not observed stage changes, can not analyze dynamically.In addition, also be subjected to the restriction of power supply, increased investment.

Summary of the invention

The purpose of this utility model is to provide a kind of and can not only increases work efficiency, reduces labor intensity, and simple in structure, easy to operate; Can not only predict the water level when detecting, the dynamic change that can also write down water level, the interior water level self recording instrument of reservoir dam piezometric tube that helps carrying out performance analysis.

For reaching above purpose, the technical scheme that the utility model adopted is: water level self recording instrument in this reservoir dam piezometric tube, by rectangular box, transparent sight hole and gravity float constitute, transparent sight hole is located on the leading flank of rectangular box, connect lifting rope in the upper end of gravity float, it is characterized in that on the rectangular box internal fixation from counting clock, be wound with self-recording paper on the clock counting certainly, establish fixed bar in a side of counting clock certainly, on fixed bar, install lever oneself pen by rotating shaft, the record arm middle part of lever oneself pen is provided with extension spring, the nib of lever oneself pen touches the surface of self-recording paper, the nib of lever oneself pen contains the self-recording ink, and the upper end of lifting rope is walked around deflection sheave successively, equalizer pulley passes the stretch arm end that through hole on the rectangular box base plate is connected lever oneself pen.The utility model is also implemented by following measure: described from counting the rainfall recording clock transformation of the way that clock can adopt meteorological department to use, counting clock certainly can all last string, only turns around in the week, and in like manner, self-recording paper also can change once in a week; Described self-recording paper, its center horizontal line are " 0 " line, and water level is constant in the expression piezometric tube, and the following horizontal line of " 0 " line is "+", and water level rises in the expression piezometric tube, and the above horizontal line of " 0 " line is "-", decline of water table in the expression piezometric tube; Described lifting rope is the high-molecular polythene filament; Described deflection sheave and equalizer pulley all are fixed on stretching out on the plate of rectangular box diapire, and the axle of equalizer pulley snaps in the vertical bar hole that stretches out on the plate, and uses fixed by nut.

The beneficial effects of the utility model are: with in piezometric tube, survey water level employed " depth measurement clock " at present, " simple and easy electrical long distance water level recorder " compared, can not only increase work efficiency, reduce labor intensity, and simple in structure, easy to operate; Can not only predict the water level when detecting, the dynamic change that can also write down water level helps carrying out the performance analysis of water level; In addition, owing to adopt the lever recording pen, stretch arm makes the record scale obtain amplification less than the record arm, so, make measurement data more accurate, and easy reading.Can be widely used in the water level Continuous Observation in the reservoir dam piezometric tube.

Description of drawings

Synoptic diagram cuts open in Fig. 1, the utility model structure master office of looking.

Fig. 2, self-recording paper of the present utility model are overlooked enlarged diagram.

Fig. 3, the utility model are analysed and observe enlarged diagram along the axial office of equalizer pulley.

Embodiment

Make the utility model with reference to Fig. 1,2,3.Water level self recording instrument in this reservoir dam piezometric tube, by rectangular box 1, transparent sight hole 2 and gravity float 3 constitute, transparent sight hole 2 is located on the leading flank of rectangular box 1, connect lifting rope 4 in the upper end of gravity float 3, it is characterized in that on rectangular box 1 internal fixation from counting clock 5, be wound with self-recording paper 6 on the clock 5 counting certainly, establish fixed bar 7 in a side of counting clock 5 certainly, on fixed bar 7, install lever oneself pen 8 by rotating shaft, the record arm middle part of lever oneself pen 8 is provided with extension spring 9, the nib of lever oneself pen 8 touches the surface of self-recording paper 6, the nib of lever oneself pen 8 contains the self-recording ink, the upper end of lifting rope 4 is walked around deflection sheave 10 successively, equalizer pulley 11 passes the stretch arm end that through hole 12 on rectangular box 1 base plate is connected lever oneself pen 8, when using the utility model, the Ordering-the self recording instrument is installed in piezometric tube suitable for reading, on the tube wall of piezometric tube, establish the observation window relative with the transparent sight hole 2 of rectangular box 1, and seal with heavy sheet glass, gravity float 3 hangs in piezometric tube, float on the surface, on equalizer pulley 11, the following adjusting, make lifting rope 4 that lever oneself pen 8 is pulled into horizontal level, at this moment, nib touches on the line of the center of self-recording paper 6 " 0 ", when water level rises, nib rotates in time below the line and rules in " 0 ", when decline of water table, nib rotates in time more than the line and rules in " 0 ", like this, after changing self-recording paper, can be from self-recording paper analysis SEA LEVEL VARIATION any time, in conjunction with Changes in weather or contrast rainfall autographic record, the reason of analysis SEA LEVEL VARIATION that can be more definite, thus correctly judge the security situation of dam.The utility model is also implemented by following measure: described from counting the rainfall recording clock transformation of the way that clock 5 can adopt meteorological department to use, counting clock certainly can all last string, only turns around in the week, and in like manner, self-recording paper also can change once in a week; Described self-recording paper 6, its center horizontal line is " 0 " line, and water level is constant in the expression piezometric tube, and the following horizontal line of " 0 " line is "+", water level rises in the expression piezometric tube, will analyze the reason that water level rises, whether if do not rain factor, will analyze dam has the infiltration phenomenon, the above horizontal line of " 0 " line is "-", decline of water table in the expression piezometric tube also will be analyzed reason, guarantees the safety of dam; Described lifting rope 4 is the high-molecular polythene filament, and diameter is thin, tension, and the intensity height, in light weight, therefore, its weight can be ignored; Described deflection sheave 10 and equalizer pulley 11 all are fixed on stretching out on the plate 13 of rectangular box 1 diapire, by deflection sheave 10 lifting rope 4 is stretched under the center of piezometric tube, the axle of equalizer pulley 11 snaps in the vertical bar hole 14 that stretches out on the plate 13, and fixing with nut 15.

Claims (3)

1. water level self recording instrument in the reservoir dam piezometric tube, by rectangular box (1), transparent sight hole (2) and gravity float (3) constitute, transparent sight hole (2) is located on the leading flank of rectangular box (1), connect upward lifting rope (4) in the upper end of gravity float (3), it is characterized in that on rectangular box (1) internal fixation from counting clock (5), be wound with self-recording paper (6) on the clock (5) counting certainly, establish fixed bar (7) in a side of counting clock (5) certainly, upward install lever oneself pen (8) at fixed bar (7) by rotating shaft, the record arm middle part of lever oneself pen (8) is provided with extension spring (9), the nib of lever oneself pen (8) touches the surface of self-recording paper (6), and the upper end of lifting rope (4) is walked around deflection sheave (10) successively, equalizer pulley (11) passes the stretch arm end that through hole (12) on rectangular box (1) base plate is connected lever oneself pen (8).

2. water level self recording instrument in the reservoir dam piezometric tube according to claim 1 is characterized in that described self-recording paper (6), and its center horizontal line is " 0 " line, and the following horizontal line of " 0 " line is "+", and the above horizontal line of " 0 " line is "-".

3. water level self recording instrument in the reservoir dam piezometric tube according to claim 1, it is characterized in that described deflection sheave (10) and equalizer pulley (11) all are fixed on stretching out on the plate (13) of rectangular box (1) diapire, the axle of equalizer pulley (11) snaps in the vertical bar hole (14) that stretches out on the plate (13), and fixing with nut (15).

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