CN214122510U

CN214122510U - Rainfall measuring device

Info

Publication number: CN214122510U
Application number: CN202022531767.0U
Authority: CN
Inventors: 王新宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-05
Filing date: 2020-11-05
Publication date: 2021-09-03
Anticipated expiration: 2030-11-05

Abstract

The utility model discloses a rainfall measuring device, include: the device comprises a water bearing device, a water storage device, a water measuring device and a metering control system; the water bearing device is funnel-shaped and is used for bearing precipitation; the water storage device is box-shaped, the top of the water storage device is provided with a first connecting port, the first connecting port is communicated with the bottom opening of the water bearing device, and the bottom of the water storage device is provided with a second connecting port; the water meter is in a box shape and is arranged below the water storage device, the top of the water meter is provided with a third connecting port, a water guide pipe is connected between the second connecting port and the third connecting port, the bottom of the water meter is provided with a fourth connecting port, and the fourth connecting port is connected with a drain pipe; the metering control system comprises a controller, a sensor, a first valve, a second valve and a counter, wherein the sensor, the first valve, the second valve and the counter are connected with the controller, the sensor is arranged in the water meter, the first valve is arranged on the water guide pipe, and the second valve is arranged on the water discharge pipe. The utility model discloses an automatic measurement to the rainfall can be accurately collected to the confined container, has reduced measuring error, has improved measurement accuracy.

Description

Rainfall measuring device

Technical Field

The utility model belongs to the technical field of the hydrology is measured, a rainfall measuring device is related to.

Background

Rainfall is the depth of the water layer in millimeters of the surface of the ground to which the water falls over a period of time. The rainfall measuring instrument includes two kinds of rain gauges.

A rain gauge is an instrument used to measure the amount of rainfall accumulated over a period of time. The shell is a metal cylinder and is divided into an upper section and a lower section, the upper section is a water containing funnel with the caliber of 20 cm, the area and the shape of a mouth of the funnel are kept for preventing rainwater from splashing, and the mouth of the funnel is made into a blade shape with a straight inner part and an inclined outer part by hard copper; a water storage bottle is arranged in the lower section of the barrel and used for collecting rainwater. During measurement, rainwater is poured into a special rainfall cup to read the precipitation millimeter number. In the snowing season, the water storage bottle is taken out, a cylinder opening without a funnel is replaced, snowflakes can be directly collected in a rain measuring cylinder, reading is carried out after the snow is melted, and the snow can be weighed and then converted into millimeters according to the area of the cylinder opening.

The siphon rain gauge is an instrument capable of continuously recording precipitation and precipitation time. The shape and size of the upper water containing funnel are the same as those of the rain gauge. After rainwater is guided into the measuring cylinder through the funnel, the floater in the measuring cylinder floats upwards along with the rise of the water level to drive the self-recording pen to draw a curve of the rise of the water level on the self-recording paper. When the water level in the measuring cylinder reaches 10 mm, the water is rapidly discharged by means of the siphon tube, and the pen point falls back to the zero position to be recorded again. The self-clocking gives the cumulative course of precipitation over time.

The tipping bucket rain gauge is a wired telemetering instrument which can continuously record the change of rainfall along with time and measure the accumulated rainfall. The sensor and the recorder are connected by a cable. The sensor is measured by a tipping bucket, two completely symmetrical triangular containers are separated by a middle partition plate, the middle partition plate can rotate around a horizontal shaft, so that the containers on two sides can receive water in turn, when one container on one side is filled with a certain amount of rainwater (0.1 or 0.2 mm), the container on one side is overturned due to the outward movement of the gravity center, the water is poured out, the tipping bucket is overturned left and right along with the continuous rainfall, the overturning times of the tipping bucket are changed into electric signals by a contact switch, the electric signals are sent to a recorder, and rainfall data are read out on an accumulation counter and a self-recording clock.

The rain gauge does not have automatic measuring capability and needs manual operation. In the measuring process of the siphon rain gauge and the tipping bucket rain gauge, measuring errors are generated in the drainage process.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

The utility model aims at: the utility model provides a rainfall measuring device, when realizing automatic rainfall measurement, reduce measuring error, improve measurement accuracy.

(II) technical scheme

In order to solve the technical problem, the utility model provides a rainfall measuring device, it includes: the device comprises a water bearing device 1, a water storage device 2, a water measuring device 3 and a metering control system; the water bearing device 1 is funnel-shaped and is used for bearing precipitation; the water storage device 2 is box-shaped, the top of the water storage device is provided with a first connecting port, the first connecting port is communicated with the bottom opening of the water bearing device 1, and the bottom of the water storage device 2 is provided with a second connecting port; the water measurer 3 is in a box shape and is arranged below the water receiver 2, a third connecting port is arranged at the top of the water measurer 3, a water guide pipe 4 is connected between the second connecting port and the third connecting port, a fourth connecting port is arranged at the bottom of the water measurer 3, and the fourth connecting port is connected with a drainage pipe 5; the metering control system comprises a controller, a sensor, a first valve, a second valve and a counter, wherein the sensor, the first valve, the second valve and the counter are connected with the controller; in the initial state, the first valve is opened, the second valve is closed, the received rainfall in the water receiver 1 flows into the water receiver 2, the received rainfall in the water receiver 2 flows into the water measurer 3 through the water guide pipe 4, the sensor measures the water level in the water measurer 3 and transmits the measured water level to the controller, when the water level in the water measurer 3 reaches a set threshold value, the controller controls the first valve to be closed and the second valve to be opened, when the sensor measures the water level in the water measurer 3 to be zero, the controller controls the second valve to be closed and the first valve to be opened, and the counter records the opening times of the second valve.

Wherein, the inner diameter of the upper port of the water receiver 1 is set to be 200 mm.

The controller is provided with a display, and the controller converts the result measured by the counter and the sensor into rainfall and outputs the rainfall through the display.

Wherein the diameter of the drain pipe 5 is larger than that of the water guide pipe 4; the volume of the water reservoir 2 is larger than the volume of the water meter 3.

Wherein, the diameter of the drain pipe 5 is more than three times of the diameter of the water guide pipe 4; the volume of the preferred reservoir 2 is more than three times the volume of the water meter 3.

(III) advantageous effects

The rainfall measuring device that above-mentioned technical scheme provided adopts two containers, carries out flourishing water and water gaging respectively, and the rainfall passes through counter electronic measurement, realizes automatic measurement to the rainfall can be accurately collected to the confined container, has reduced measuring error, has improved measurement accuracy.

Drawings

Fig. 1 is the utility model discloses rainfall measuring device schematic diagram.

In the figure, 1-water bearing device; 2-a water reservoir; 3-water measuring device; 4-a water conduit; 5-a drain pipe.

Detailed Description

In order to make the objects, contents and advantages of the present invention clearer, the following description will make a detailed description of embodiments of the present invention with reference to the accompanying drawings and examples.

Fig. 1 shows a schematic diagram of a rainfall measurement device according to an embodiment of the present invention. Referring to the drawings, the rainfall measurement device of the present embodiment includes a water receiver 1, a water reservoir 2, a water meter 3, and a metering control system; the water receiver 1 is funnel-shaped and is used for receiving rainfall, the inner diameter of the upper port of the water receiver 1 is set to be 200mm according to the national standard, and the consistency of rainfall statistic standards is facilitated; the water storage device 2 is box-shaped, the top of the water storage device is provided with a first connecting port, the first connecting port is communicated with the bottom opening of the water bearing device 1, and the bottom of the water storage device 2 is provided with a second connecting port; the water measurer 3 is in a box shape and is arranged below the water receiver 2, a third connecting port is arranged at the top of the water measurer 3, a water guide pipe 4 is connected between the second connecting port and the third connecting port, a fourth connecting port is arranged at the bottom of the water measurer 3, and the fourth connecting port is connected with a drainage pipe 5; the metering control system comprises a controller, a sensor, a first valve, a second valve and a counter, wherein the sensor, the first valve, the second valve and the counter are connected with the controller; in the initial state, the first valve is opened, the second valve is closed, the received rainfall in the water receiver 1 flows into the water receiver 2, the received rainfall in the water receiver 2 flows into the water measurer 3 through the water guide pipe 4, the sensor measures the water level in the water measurer 3 and transmits the measured water level to the controller, when the water level in the water measurer 3 reaches a set threshold value, the controller controls the first valve to be closed and the second valve to be opened, when the sensor measures the water level in the water measurer 3 to be zero, the controller controls the second valve to be closed and the first valve to be opened, and the counter records the opening times of the second valve.

The controller can also be provided with a display, and the results measured by the counter and the sensor are directly converted into rainfall for result output.

In the rainfall measurement device of the embodiment, the diameter of the drain pipe 5 is larger than that of the water guide pipe 4, so that quick drainage is facilitated; preferably, the diameter of the drain pipe 5 is more than three times the diameter of the water introduction pipe 4. The volume of the water receiver 2 is larger than that of the water measurer 3, so that rainwater received by the water receiver 1 can be completely transferred into the water receiver 2 when the weather such as heavy rain, heavy rain and the like is met; preferably, the volume of the reservoir 2 is more than three times the volume of the water meter 3.

In the embodiment, rainwater received in the water receiver 2 is led into the water measurer 3 in batches, volume calibration is completed in the water measurer 3, the rainwater is discharged in time after being recorded, and the amount of water discharged in each time in the water measurer 3 corresponds to a pre-calculated fixed rainfall value; the proportion occupied by the last part of rainwater guided into the water measurer 3 from the water receiver 2 is quite large when the water level is not up to the set threshold, at the moment, the actual water level in the water measurer 3 is directly measured by a sensor and is transmitted to a controller, the controller calculates the rainfall corresponding to the part of rainwater, and finally the rainfall in the whole rainfall process can be obtained.

In this embodiment rainfall measuring device, water receiver 2 and water measurer 3 are external all not uncovered, do not have the condition that the rainwater falls into, also do not have the rainwater outside that spills to improved measurement accuracy, and electronic sensor's precision is higher, further promotes measurement accuracy. In addition, the sensor and the counter perform real-time automatic measurement, and the measurement results are summarized and output by the controller, so that the automation of measurement is realized.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims

1. A rainfall measurement device, comprising: the device comprises a water bearing device (1), a water storage device (2), a water measuring device (3) and a metering control system; the water bearing device (1) is funnel-shaped and is used for bearing precipitation; the water storage device (2) is box-shaped, the top of the water storage device is provided with a first connecting port, the first connecting port is communicated with the bottom opening of the water bearing device (1), and the bottom of the water storage device (2) is provided with a second connecting port; the water measurer (3) is box-shaped and is arranged below the water receiver (2), the top of the water measurer (3) is provided with a third connecting port, a water guide pipe (4) is connected between the second connecting port and the third connecting port, the bottom of the water measurer (3) is provided with a fourth connecting port, and the fourth connecting port is connected with a drain pipe (5); the metering control system comprises a controller, a sensor, a first valve, a second valve and a counter, wherein the sensor, the first valve, the second valve and the counter are connected with the controller; when the water meter is in an initial state, the first valve is opened, the second valve is closed, received rainfall in the water receiver (1) flows into the water receiver (2), received rainfall in the water receiver (2) flows into the water meter (3) through the water guide pipe (4), the sensor measures the water level in the water meter (3) and transmits the measured water level to the controller, when the water level in the water meter (3) reaches a set threshold value, the controller controls the first valve to be closed and the second valve to be opened, when the sensor measures the water level in the water meter (3) to be zero, the controller controls the second valve to be closed and the first valve to be opened, and the counter records the opening times of the second valve.

2. Rainfall measuring device according to claim 1, wherein the inner diameter of the upper port of said water receiver (1) is set to 200 mm.

3. The rainfall measurement device of claim 2 wherein a display is provided on said controller, and said controller converts the results of the counter and sensor into rainfall to be output via said display.

4. A rainfall measuring device according to claim 3 wherein the diameter of the drain pipe (5) is larger than the diameter of the water conduit (4); the volume of the water storage device (2) is larger than that of the water measuring device (3).

5. The rainfall measuring device of claim 4, wherein the diameter of said drain pipe (5) is more than three times the diameter of the water conduit (4); the volume of the water storage device (2) is more than three times of the volume of the water measurer (3).