CN213423499U

CN213423499U - Wide-range rain gauge

Info

Publication number: CN213423499U
Application number: CN202021983565.3U
Authority: CN
Inventors: 胡庆钢
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2021-06-11
Anticipated expiration: 2030-09-11

Abstract

The utility model provides a wide range rain gauge, includes the support, locates the water-holding funnel on the support, is located flowmeter, drainage device, the magnetic induction reading unit of water-holding funnel below, pulse output control unit, output terminal, power, through a leading water pipe intercommunication between water-holding funnel bottom export and the flowmeter entry, the discharge that carries out the rainwater is connected with drainage device to flowmeter bottom export, the power is flowmeter, magnetic induction reading unit, pulse output control unit, output terminal energy supply, and the rainwater gets into the flowmeter through the leading water pipe behind the water-holding funnel, flows through outside the turbine that sets up in the flowmeter after drainage device discharge rain gauge, magnetic induction reading unit acquires the turbine pulse data in the flowmeter and carries out data processing to pulse output control unit, by output terminal output rain data at last. This design has the measurement that can carry out super large rainfall, measures the advantage that the precision is high.

Description

Wide-range rain gauge

Technical Field

The utility model relates to a rain gauge field, especially a wide range rain gauge.

Background

At present, most of the mainstream rain gauges adopt tipping bucket type metering to measure the rainfall, the tipping bucket type rain gauge is a telemetering rain gauge consisting of a sensor and a signal recorder, and the sensor comprises a water receiver, an upper tipping bucket (two left and right tipping buckets), a lower layer metering tipping bucket, a counting tipping bucket, a dry reed switch and the like. When rainwater enters the water receiver, falls into the water receiving tipping bucket and flows into the left tipping bucket through the leakage port, and when the accumulated water amount reaches a certain height (such as 0.2 mm), the tipping bucket is turned over out of balance, and then the rainwater flows into the right tipping bucket next time. And each time the tipping bucket topples, the switch is switched on, a pulse signal is transmitted to the recorder, the recorder records the rainfall, and the rainfall process can be measured by repeating the steps. According to the national standard, the rain intensity range in the technical indexes of the rain gauge is 0.1mm/min-4mm/min, so that the existing domestic and international rain gauges are developed and produced based on the standard. The tipping bucket type rain gauge structurally adopts the design of a left tipping bucket and a right tipping bucket to measure rainfall, and when the rainfall is overlarge, for example, the rainfall is measured in a heavy rain, the tipping bucket cannot accurately measure rainfall data as long as being overturned, so that the maximum rainfall detection range of most of the existing rain gauges is less than 4mm/min, the detection range of large rainfall is limited, especially in some special experiments, the experiment of simulating the condition of ultra-large rainfall needs to be carried out, the accurate measurement of the rainfall needs to be carried out, the rain gauge cannot finish the measurement of large rainfall, and even if the measurement can be carried out, the measurement accuracy cannot meet the experiment requirement.

Disclosure of Invention

An object of the utility model is to provide a can carry out the measurement of super large rainfall, measure the wide range rain gauge that the precision is high.

In order to solve the technical problem, the utility model discloses a following technical scheme: the utility model provides a wide range rain gauge, includes the support, locates the water-holding funnel on the support, is located flowmeter, drainage device, the magnetic induction reading unit, pulse output control unit, output terminal, the power of water-holding funnel below, through a leading water pipe intercommunication between water-holding funnel bottom export and the flowmeter entry, flowmeter bottom export is connected with drainage device and is carried out the discharge of rainwater, magnetic induction reading unit one end is connected with the flowmeter electricity, and the other end is connected with pulse output control unit electricity, output terminal is connected with pulse output control unit electricity, the power is flowmeter, magnetic induction reading unit, pulse output control unit, output terminal energy supply, and the rainwater gets into the flowmeter through the leading water pipe after getting into water-holding funnel, flows through outside the turbine that sets up in the flowmeter and discharges the rain gauge, magnetic induction reading unit acquires the turbine pulse data in the flowmeter and carries out data processing to pulse output control unit And finally, outputting the rainfall data through an output terminal.

Furthermore, the drainage device is a drainage pipe, and rainwater entering the flowmeter is timely drained through connection and matching of the drainage pipe and the outlet at the bottom of the flowmeter.

Furthermore, the magnetic induction reading unit comprises an inductive sensor array formed by a plurality of inductive sensors, a single chip microcomputer, a switching circuit, a positive feedback circuit and a shaping circuit, wherein the switching circuit is connected with the single chip microcomputer, the output end of the positive feedback circuit is connected with the input end of the shaping circuit, the output end of the shaping circuit is connected with the single chip microcomputer, the input end of each inductive sensor is connected with a column lead, the output end of each inductive sensor is connected with a row lead, and the single chip microcomputer controls the conduction of the row lead and the column lead to realize the signal reading of each sensor in the inductive sensor array.

Further, the output terminal is a liquid crystal display screen.

The utility model has the advantages that: the utility model collects rainwater through a single water-bearing funnel, rainwater enters a flowmeter under the guidance of a water conduit and is discharged from a drainage device after acquiring flow data, a magnetic induction reading unit acquires the flow data in the flowmeter and processes the data in a pulse output control unit, and finally the rainfall data is output by an output terminal to complete the whole rainfall data measurement, the utility model does not adopt a left tipping bucket and a right tipping bucket in the prior art to acquire the rainfall data for multiple times, avoids the problem that the left tipping bucket and the right tipping bucket cannot tip over in time to cause inaccurate error of the rainfall measurement or even cannot measure the rainfall at all when the rainfall data measurement is carried out, and simultaneously, the data acquisition mode of the magnetic induction reading unit acquiring the turbine pulse data in the flowmeter is more accurate and has small error compared with the existing data acquisition mode, the error of the existing tipping bucket type rain gauge in normal rainfall measurement is greatly reduced.

Drawings

Fig. 1 is a schematic structural view of a wide-range rain gauge.

The part names numbered in the drawings are as follows: 1. a water bearing funnel; 2. a flow meter; 3. a drainage device; 4. a magnetic induction reading unit; 5. a pulse output control unit; 6. an output terminal; 7. a water conduit.

Detailed Description

In order to make the utility model realize the technical means, innovative features and functions are easy to understand, and the utility model is further explained below.

As shown in figure 1, the technical scheme of the wide-range rain gauge of the utility model comprises a support, a water-bearing funnel 1 arranged on the support, a flow meter 2 positioned below the water-bearing funnel 1, a drainage device 3, a magnetic induction reading unit 4, a pulse output control unit 5, an output terminal 6 and a power supply, wherein the outlet at the bottom of the water-bearing funnel 1 is communicated with the inlet of the flow meter 2 through a water conduit 7, the outlet at the bottom of the flow meter 2 is connected with the drainage device 3 to discharge rainwater, one end of the magnetic induction reading unit 4 is electrically connected with the flow meter 2, the other end of the magnetic induction reading unit 4 is electrically connected with the pulse output control unit 5, the output terminal 6 is electrically connected with the pulse output control unit 5, the power supply energy to the flow meter 2, the magnetic induction reading unit 4, the pulse output control unit 5 and the output terminal 6, rainwater enters the, and after flowing through a turbine arranged in the flowmeter 2, the rain water is discharged out of the rain gauge through the water discharging device 3, the magnetic induction reading unit 4 acquires turbine pulse data in the flowmeter 2 and transmits the turbine pulse data to the pulse output control unit 5 for data processing, and finally, the rainfall data is output through the output terminal 6. Compared with the prior rain gauge, the utility model discloses a detection range has broken through current rain gauge detection range bottleneck, has increased substantially the measurement record scope of rain gauge to super large rainfall, by current national standard 4mm/min, has improved 40-120 mm/min.

The utility model discloses a in a preferred embodiment, drainage device 3 is the drain pipe, through the drain pipe with the connection cooperation of the export of 2 bottoms of flowmeter realizes getting into timely the discharge of flowmeter 2's rainwater, the speed of drain pipe exhaust rainwater is fast, and the installation is simple, of course the utility model discloses in, still can adopt other drainage device, equipment such as suction pump carries out the more timely rapid discharge of rainwater, output terminal 6 is liquid crystal display, and liquid crystal display carries out the output of current rainfall numerical value very directly perceivedly, makes the survey crew can acquire the accurate data of current rainfall and then carry out the collection of rainfall data in real time, reduces the rainfall data error that data information collection untimely caused.

In one embodiment of the invention, the flow meter 2 comprises a measuring chamber, a turbine body which is axially movable between a high position and a low position in the measuring chamber depending on the fluid flow rate, the turbine body being provided with a rotation shaft, a centering support being provided in the measuring chamber, the centering support having a longitudinal body with a longitudinal passage which supports and is passed through by the rotation shaft, the rotation shaft being axially retained in the measuring chamber by a first stop in the high position and by a second stop in the low position. In this embodiment, the centering bearing has, in the longitudinal channel, a cylindrical first longitudinal supporting centering wall and a cylindrical second longitudinal supporting centering wall, which have different cross sections, the rotation axis being arranged to be in contact with the first longitudinal supporting centering wall in the high position and with the second longitudinal supporting centering wall in the low position in the centering bearing. The magnetic induction reading unit 4 comprises an inductive sensor array, a single chip microcomputer, a switching circuit, a positive feedback circuit and a shaping circuit, wherein the inductive sensor array is composed of a plurality of inductive sensors, the switching circuit is connected with the single chip microcomputer, the output end of the positive feedback circuit is connected with the input end of the shaping circuit, the output end of the shaping circuit is connected with the single chip microcomputer, the input end of each inductive sensor is connected with a column lead, the output end of each inductive sensor is connected with a row lead, and the single chip microcomputer controls the conduction of the row lead and the column lead to read signals of each sensor in the inductive.

Although the present invention has been described with reference to the specific embodiments, it should be understood that various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the invention.

Claims

1. A wide range rain gauge, characterized by: comprises a bracket, a water bearing funnel (1) arranged on the bracket, a flow meter (2) positioned below the water bearing funnel (1), a drainage device (3), a magnetic induction reading unit (4), a pulse output control unit (5), an output terminal (6) and a power supply, wherein the outlet at the bottom of the water bearing funnel (1) is communicated with the inlet of the flow meter (2) through a water conduit (7), the outlet at the bottom of the flow meter (2) is connected with the drainage device (3) to discharge rainwater, one end of the magnetic induction reading unit (4) is electrically connected with the flow meter (2), the other end of the magnetic induction reading unit is electrically connected with the pulse output control unit (5), the output terminal (6) is electrically connected with the pulse output control unit (5), and the power supply is energy for the flow meter (2), the magnetic induction reading unit (4), the pulse output control unit (5) and the output terminal, rainwater gets into behind the water-holding funnel (1) through leading water pipe (7) entering flowmeter (2), flows through outside the turbine that sets up in flowmeter (2) is followed drainage device (3) discharge rain gauge, magnetic induction reading unit (4) acquire the turbine pulse data in flowmeter (2) and carry to pulse output control unit (5) and carry out data processing, at last by output terminal (6) output rainfall data.

2. A wide range rain gauge as claimed in claim 1, wherein: the drainage device (3) is a drainage pipe, and rainwater entering the flowmeter (2) is timely drained through connection and matching of the drainage pipe and the outlet at the bottom of the flowmeter (2).

3. A wide range rain gauge according to claim 1 or 2, wherein: the magnetic induction reading unit (4) comprises an inductive sensor array, a single chip microcomputer, a switching circuit, a positive feedback circuit and a shaping circuit, wherein the inductive sensor array is composed of a plurality of inductive sensors, the switching circuit is connected with the single chip microcomputer, the output end of the positive feedback circuit is connected with the input end of the shaping circuit, the output end of the shaping circuit is connected with the single chip microcomputer, the input end of each inductive sensor is connected with a column lead, the output end of each inductive sensor is connected with a row lead, and the single chip microcomputer controls the conduction of the row lead and the column lead to realize the signal reading of each sensor in.

4. A wide range rain gauge according to claim 1 or 2, wherein: the output terminal (6) is a liquid crystal display screen.

5. A wide range rain gauge as claimed in claim 3, wherein: the output terminal (6) is a liquid crystal display screen.