CN212207723U

CN212207723U - Novel high-precision rain gauge

Info

Publication number: CN212207723U
Application number: CN202020123946.8U
Authority: CN
Inventors: 陈默; 熊远银; 王鹍
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-18
Filing date: 2020-01-18
Publication date: 2020-12-22
Anticipated expiration: 2030-01-18

Abstract

The utility model discloses a novel high-precision rain gauge, which relates to the technical field of hydrology test; the bottom of the external rain bearing funnel is matched with the internal rain bearing funnel; the inner rain-bearing funnel is connected with the water storage cylinder through an electronic valve; a control component is designed in the rain measuring barrel, one end of the drain pipe is connected to the bottom of the water storage barrel, and the other end of the drain pipe is provided with a drainage pump; a liquid level sensor is arranged in the water storage barrel, and the floater moving part is sleeved on the outer wall of the liquid level sensor and can conduct free floating measurement. The rainfall data can be accurately measured (the precision can reach 0.1mm), and the rainfall data is not influenced by environmental factors such as the rainfall intensity, the temperature and the like.

Description

Novel high-precision rain gauge

Technical Field

The utility model belongs to the technical field of hydrology test, concretely relates to novel high accuracy rain gauge.

Background

The rainfall is the depth of the rainwater falling to the horizontal plane (without leakage, evaporation, loss and the like) within a certain period of time. Measured in millimeters using a rain gauge. At present, the widely used rainfall measuring instrument is mainly of a tipping bucket type and a weighing type.

The weighing type rain gauge is used for weighing rainfall collected in a container by using an electronic scale and then converting the rainfall into rainfall. The disadvantages are that: 1. the measurement accuracy is often affected by the influence of factors such as impurities, wind, temperature and the like in water; 2. the cost is high.

The principle of the tipping bucket type rain gauge is that rainwater flows into the tipping bucket from a hopper leaking port, and when the water storage capacity reaches a certain mass, the tipping bucket is overturned out of balance due to gravity. Each time the tipping bucket overturns, the switch is switched on and off once through the reed switch, a pulse signal is transmitted to the recorder, the recorder records the switching-on and switching-off times, and the actual rainfall can be calculated by multiplying the switching-on and switching-off times by the rainfall of the tipping bucket. The disadvantages are that: 1. the precision is not high, and the precision of a commonly used tipping bucket rain gauge is 0.2mm or 0.5 mm. 2. There is a possibility of missed memories. When the rainwater in the tipping bucket does not reach the overturning amount, the rainwater in the tipping bucket can be evaporated because of no subsequent rainfall. In addition, when precipitation intensity is big, can lose partial precipitation among the tipping bucket upset process, cause few count, if further improve measurement accuracy, there is the technical degree of difficulty.

SUMMERY OF THE UTILITY MODEL

The method aims to solve the problems of low precision, high cost, environmental interference and the like of the existing rain gauge measuring equipment; an object of the utility model is to provide a novel high accuracy rain gauge can reach 0.1 mm's measurement accuracy to do not receive the environmental disturbance, the operation is stable, does not have the risk of neglecting to remember the rainfall.

The utility model relates to a novel high-precision rain gauge, which comprises an external rain-bearing funnel, an internal rain-bearing funnel, an electronic valve, a control component, a water storage cylinder, a drain pipe, a drain pump, a float movable part and a liquid level sensor; the bottom of the external rain bearing funnel is matched with the internal rain bearing funnel; the inner rain-bearing funnel is connected with the water storage cylinder through an electronic valve; the outer wall of the water storage barrel is provided with a control component, one end of a drain pipe is arranged in the water storage barrel, and the other end of the drain pipe is provided with a drainage pump; a liquid level sensor is arranged in the water storage barrel, and the floater moving part is sleeved on the outer wall of the liquid level sensor and can conduct free floating measurement.

As preferred, the inner wall that outside held rain funnel is equipped with the several slide, and the rainwater of being convenient for glides rapidly, and the top that outside held rain funnel is equipped with grid net board, avoids impurity such as leaf to fall into wherein.

Preferably, a filtering layer is arranged in the inner rain-bearing funnel, and small branches and other impurities can be filtered.

Preferably, a transparent window is arranged on the water storage barrel, so that the internal rainwater condition can be observed conveniently.

Preferably, the control component 4 adopts a single chip microcomputer as a core control CPU, and is provided with a power supply circuit, a data storage circuit, a clock circuit, a 485 communication circuit, and an external I/O port matching component. And the CPU sends a measurement instruction to the liquid level sensor through 485 communication and stores the returned measurement data in the storage device. When the electronic valve and the water pump need to be opened and closed, the CPU powers on the electronic valve and the water pump through the external I/O, so that the electronic valve and the water pump complete corresponding work.

The utility model discloses during the use, the rainfall is after the impurity is strained to the outside rain mouthful of holding, gets into the inside rain mouthful of holding of rain gauge, and inside rain mouthful below of holding has an electronic valve, is in usually and opens (route) state, and the rainwater directly gets into a water storage section of thick bamboo, and the measurable variable quantity of level sensor after the water yield change in a water storage section of thick bamboo. The control system collects the data of the liquid level sensor and converts the data into rainfall to be recorded in the memory. When the rainfall is continuously carried out and the water level in the barrel is higher, the electronic valve is closed in advance, the control system opens the drainage pump to drain a part of water, and the water level is ensured to be in the measuring range all the time.

Compared with the prior art, the beneficial effects of the utility model are that: the rainfall data can be accurately measured (the precision can reach 0.1mm), and the rainfall data is not influenced by environmental factors such as the rainfall intensity, the temperature and the like.

Drawings

For ease of illustration, the invention is described in detail by the following detailed description and accompanying drawings.

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the float moving part and the liquid level sensor of the present invention;

in the figure: the device comprises an external rain bearing funnel 1, an internal rain bearing funnel 2, an electronic valve 3, a control assembly 4, a water storage tank 5, a drain pipe 6, a drain pump 7, a float movable part 8 and a liquid level sensor 9.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described below with reference to specific embodiments shown in the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

It should also be noted that, in order to avoid obscuring the invention with unnecessary details, only the structures and/or process steps that are closely related to the solution according to the invention are shown in the drawings, while other details that are not relevant to the invention are omitted.

As shown in fig. 1-2, the following technical solutions are adopted in the present embodiment: the rain-proof device comprises an external rain-proof funnel 1, an internal rain-proof funnel 2, an electronic valve 3, a control component 4, a water storage cylinder 5, a drain pipe 6, a drain pump 7, a floater moving part 8 and a liquid level sensor 9; the bottom of the external rain-bearing funnel 1 is matched with the internal rain-bearing funnel 2; the internal rain bearing funnel 2 is connected with a water storage cylinder 5 through an electronic valve 3; the outer wall of the water storage barrel 5 is provided with a control component 4, one end of a drain pipe 6 is arranged in the water storage barrel 5, and the other end of the drain pipe 6 is provided with a drainage pump 7; a liquid level sensor 9 is arranged in the water storage cylinder 5, and the float moving part 8 is sleeved on the outer wall of the liquid level sensor 9.

Further, the inner wall of the outside rain-bearing funnel 1 is provided with a plurality of slideways, so that rainwater can slide down rapidly, and the top of the outside rain-bearing funnel 1 is provided with a grid plate, so that impurities such as leaves can be prevented from falling into the grid plate.

Furthermore, a filtering layer is arranged in the inner rain-bearing funnel 2, and small branches and other impurities can be filtered.

Furthermore, a transparent window is arranged on the water storage cylinder 5, so that the internal rainwater condition can be observed conveniently.

In this embodiment, the control component 4 uses a single chip as a core control CPU, and is equipped with a power circuit, a data storage circuit, a clock circuit, a 485 communication circuit, and an external I/O port matching component. And the CPU sends a measurement instruction to the liquid level sensor through 485 communication and stores the returned measurement data in the storage device. When the electronic valve and the water pump need to be opened and closed, the CPU powers on the electronic valve and the water pump through the external I/O to complete corresponding work (a control circuit is a technology which is well known by those skilled in the art, and is not described herein again).

The novel high-precision rain gauge in the embodiment is operated as follows: when precipitation takes place, the rainwater is through the outside rain hourglass fill 1 filtration impurity back, gets into inside rain hourglass fill 2 that holds, and the pipe reaches 3 departments of electronic valve, and the electronic valve is in the open mode under the normal conditions, and the rainwater can flow into a water storage section of thick bamboo 5, installs level sensor in the water storage section of thick bamboo 5, and the change of the rainwater volume of water after getting into leads to a section of thick bamboo interior float movable part 8 to rise, and level sensor 9 can measure the change of float movable part height. The control system of the control assembly 4 is connected with the sensor 9 through a 485 communication line, collects height data of the float moving part at regular time, converts the rising height of the float moving part into rainfall data through calculation and stores the rainfall data on the storage chip.

When the water quantity in the water storage cylinder exceeds a certain critical value, the control system firstly closes the electronic valve below the internal rain bearing port to prevent the loss of rainfall, then opens the drainage pump to drain water, stops draining water when the water level in the cylinder is lower than the set critical value, and measures and records the current state after standing for a period of time. The control system is responsible for acquiring the water level state of the float movable part, converting the water level state into rainfall through calculation, storing and recording the rainfall, and opening or closing the electronic valve and opening or closing the drainage pump through judging the water level critical value; accurate measurement of rainfall data is achieved through strict program control.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A novel high accuracy rain gauge, its characterized in that: the rain-proof device comprises an external rain-bearing funnel, an internal rain-bearing funnel, an electronic valve, a control component, a water storage barrel, a drain pipe, a drain pump, a floater moving part and a liquid level sensor; the bottom of the external rain bearing funnel is matched with the internal rain bearing funnel; the inner rain-bearing funnel is connected with the water storage cylinder through an electronic valve; the outer wall of the water storage barrel is provided with a control component, one end of a drain pipe is arranged in the water storage barrel, and the other end of the drain pipe is provided with a drainage pump; a liquid level sensor is arranged in the water storage barrel, and the float movable part is sleeved on the outer wall of the liquid level sensor.

2. The novel high precision rain gauge according to claim 1, characterized in that: the control component adopts a singlechip as a core control CPU.

3. The novel high precision rain gauge according to claim 1, characterized in that: the inner wall of the external rain-bearing funnel is provided with a plurality of slideways, and the top of the external rain-bearing funnel is provided with a grid plate.

4. The novel high precision rain gauge according to claim 1, characterized in that: and a filtering layer is arranged in the inner rain-bearing funnel.

5. The novel high precision rain gauge according to claim 1, characterized in that: and a transparent window is arranged on the water storage barrel.