CN213365075U - Embedded shape-preserving rainfall monitoring device for ground - Google Patents
Embedded shape-preserving rainfall monitoring device for ground Download PDFInfo
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- CN213365075U CN213365075U CN202022819898.9U CN202022819898U CN213365075U CN 213365075 U CN213365075 U CN 213365075U CN 202022819898 U CN202022819898 U CN 202022819898U CN 213365075 U CN213365075 U CN 213365075U
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Abstract
The utility model discloses a ground embedded shape-preserving rainfall monitoring device, which comprises a rain measuring cylinder arranged underground, wherein an opening of the rain measuring cylinder is covered with an inner supporting plate, the upper surface of the inner supporting plate is covered with an inner ground-imitating layer, and the height of the inner ground-imitating layer is the same as that of the local ground surface; the bottom of the rain gauge is provided with a water outlet, the water outlet is provided with an electromagnetic valve, and a weighing device is arranged below the rain gauge. The utility model discloses do not receive the influence of air current wind direction, do not disturb the action of air current wind, survey the value accuracy directly perceived and with face rainfall calculation hypothesis unanimous.
Description
Technical Field
The utility model belongs to the technical field of survey rainfall equipment, concretely relates to embedded shape preserving rainfall monitoring devices in ground.
Background
At present, rain gauges are installed on the ground or above buildings, wherein the height of an automatic tipping bucket rain gauge reaches 54 cm, and a manual rain monitoring device reaches 76 cm. Under the interaction of rainfall and a wind field, the abrupt rain gauge inevitably influences airflow, so that the difference between the rainfall actually measured by the rain bearing port higher than the ground and the ground rainfall is large. Accurate rainfall on the ground needs to be acquired in the hydrological model building and surface runoff infiltration analysis, and rainfall monitoring errors can lead to errors of the hydrological model, so that flood control and drainage decisions and water resource assessment results are influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome not enough among the prior art, provide an embedded shape preserving rainfall monitoring devices in ground, do not receive the influence of air current wind direction, do not disturb the action of air current wind, survey value accuracy directly perceived and with face rainfall calculation hypothesis unanimous.
The utility model provides a following technical scheme:
a ground embedded type shape-preserving rainfall monitoring device comprises a rainfall measuring cylinder arranged underground, wherein an opening of the rainfall measuring cylinder is covered with an inner supporting plate, the upper surface of the inner supporting plate is covered with an inner ground imitating surface layer, and the height of the inner ground imitating surface layer is the same as that of the ground surface of the ground; the bottom of the rain gauge is provided with a water outlet, the water outlet is provided with an electromagnetic valve, and a weighing device is arranged below the rain gauge.
Preferably, the rain gauge further comprises a cavity arranged on the periphery of the rain gauge, a water outlet of the rain gauge is communicated with the cavity, and a water drainage channel is communicated below the cavity.
Preferably, the cross-sectional shape of the drainage channel is rectangular, and the height of the drainage channel is 1.5 m.
Preferably, the cavity is spaced from the local earth by a concrete slab.
Preferably, the cavity is separated from the drainage channel by a concrete pore plate with pores.
Preferably, an outer supporting plate covers the opening of the cavity, an outer ground imitating surface layer covers the upper surface of the outer supporting plate, and the height of the outer ground imitating surface layer is the same as that of the local ground surface and that of the inner ground imitating surface layer.
Preferably, the outer ground-imitating surface layer is a plastic pore plate, and the aperture ratio is 70-80%; the outer supporting plate is a stainless steel pore plate, and the aperture ratio is 50-60%.
Preferably, the inner simulated ground surface layer is an anti-corrosion pore plate, and the aperture ratio is 60-70%; the inner supporting plate is an anti-silt rigid pore plate, and the aperture ratio is 70-80%.
Preferably, the rain gauge is cylindrical, and the opening area is 1.0m2And a height of 1.0 m.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model comprises a rain measuring cylinder, wherein the bottom of the rain measuring cylinder is provided with a water outlet, the water outlet is provided with a solenoid valve, and a weighing device is arranged below the rain measuring cylinder and is used for realizing rainfall monitoring; the rain gauge is arranged underground, the opening is covered with the inner supporting plate, the upper surface of the inner supporting plate is covered with the inner simulated surface layer, and the height of the inner simulated surface layer is the same as that of the local surface of the earth, so that the device is not influenced by the airflow and wind direction, does not interfere with the behavior of airflow and wind, has a visual and accurate measured value which is consistent with the surface rainfall calculation hypothesis, and is beneficial to the establishment of a hydrological model and the infiltration analysis of surface runoff.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
labeled as: 1. a local surface of the earth; 2. the outer surface of the simulated ground; 3. an inner imitation ground surface layer; 4. a local soil mass; 5. an outer support plate; 6. an inner support plate; 7. a cavity; 8. an electromagnetic valve; 9. a rain gauge; 10. a weighing device; 11. a drainage channel; 12. a concrete slab; 13. concrete pore plates.
Detailed Description
The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
It should be noted that, in the description of the present invention, the terms "front", "rear", "left", "right", "upper", "lower", "inner", "outer", etc. indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention but do not require the present invention to be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.
As shown in fig. 1, a ground embedded type conformal rainfall monitoring device comprises a rainfall measuring cylinder 9 arranged under the ground, wherein an opening of the rainfall measuring cylinder 9 is covered with an inner supporting plate 6, the upper surface of the inner supporting plate 6 is covered with an inner simulated ground surface layer 3, and the height of the inner simulated ground surface layer 3 is the same as that of a ground surface 1; the bottom of the rain gauge 9 is provided with a water outlet, the water outlet is provided with an electromagnetic valve 8, and a weighing device 10 is arranged below the rain gauge 9.
The embedded shape-preserving rainfall monitoring device of ground that this embodiment provided still includes locates the peripheral cavity 7 of rain graduated flask 9, and the outlet of rain graduated flask 9 is linked together with cavity 7, and cavity 7 below intercommunication has drainage channel 11, and drainage channel 11 makes the water in the cavity 7 in time discharge, is difficult for ponding. The cross-sectional shape of the drainage channel 11 is rectangular and the height is 1.5 m. The existence of the cavity 7 and the drainage channel 11 can avoid the influence of the peripheral surface runoff and the influence of the ground wind field.
The cavity 7 is separated from the local soil 4 by a concrete slab 12 to prevent the local soil from blocking the cavity 7. The cavity 7 is separated from the drainage channel 11 by a concrete pore plate 13 with holes, so that the cavity 7 can drain conveniently. An outer supporting plate 5 covers the opening of the cavity 7, an outer ground imitating surface layer 2 covers the upper surface of the outer supporting plate 5, and the height of the outer ground imitating surface layer 2 is the same as that of the local ground surface 1 and that of the inner ground imitating surface layer 3. The external simulated ground surface layer 2 is a plastic pore plate, the aperture ratio is 70-80%, and the requirement of maximum runoff rapid infiltration is met; the outer supporting plate 5 is a stainless steel pore plate, the aperture ratio is 50-60%, and the outer simulated ground surface layer 2 can be supported while the infiltration requirement is met.
The inner simulated ground surface layer 3 is an anti-corrosion pore plate, the aperture ratio is 60-70%, the friction coefficient of the inner simulated ground surface layer 3 and the airflow is similar, and the infiltration condition is met; the inner supporting plate 6 is a silt-proof rigid pore plate, the aperture ratio is 70-80%, and the inner simulated ground surface layer 3 can be supported while the infiltration requirement is met. The rain gauge 9 is cylindrical and has an openingArea of 1.0m2And a height of 1.0 m.
When raining, rainwater enters the rain measuring cylinder 9 through the inner simulated ground surface layer 3 and the inner supporting plate 6, the high-precision weighing device 10 measures the rainfall, the electromagnetic valve 8 discharges the rainwater in the rain measuring cylinder 9 into the cavity 7 at regular time according to the rainfall intensity, weight-increasing measurement is realized, differential calculation is carried out, accumulated errors are avoided, the rainwater in the cylinder is completely drained after raining, the electromagnetic valve 8 is closed, the dryness in the weather cylinder is ensured, and the measurement can be carried out once the rainfall occurs; the cavity 7 can avoid the influence of peripheral surface runoff and the influence of a ground wind field, rainwater in the cavity 7 is drained into the drainage channel 11, and then directly drains water to enter a downstream large drainage ditch and a water collecting pond, a reservoir or a water well without water stagnation or backflow, the water flow speed is not influenced, and no water exists in the cavity 7. The device is not influenced by airflow and wind direction, does not interfere with the behavior of airflow and wind, has intuitive and accurate measured value which is consistent with the calculation hypothesis of surface rainfall, and is favorable for hydrological model establishment and surface runoff infiltration analysis.
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 (9)
1. The ground embedded type shape-preserving rainfall monitoring device is characterized by comprising a rainfall measuring cylinder arranged underground, wherein an opening of the rainfall measuring cylinder is covered with an inner supporting plate, the upper surface of the inner supporting plate is covered with an inner ground imitating layer, and the height of the inner ground imitating layer is the same as that of the ground surface; the bottom of the rain gauge is provided with a water outlet, the water outlet is provided with an electromagnetic valve, and a weighing device is arranged below the rain gauge.
2. The ground-embedded conformal rainfall monitoring device of claim 1 further comprising a cavity disposed at the periphery of the rain gauge, wherein the drainage port of the rain gauge is communicated with the cavity, and a drainage channel is communicated below the cavity.
3. The ground-embedded conformal rainfall monitoring device of claim 2 wherein the drainage channel is rectangular in cross-sectional shape and 1.5m in height.
4. The ground-based embedded conformal rainfall monitoring device of claim 2 wherein the cavity is separated from the local soil by a concrete slab.
5. The ground-embedded conformal rainfall monitoring device of claim 2 wherein the cavity is separated from the drainage channel by a perforated concrete perforated plate.
6. The ground-embedded conformal rainfall monitoring device of claim 2 wherein the opening of the cavity is covered with an outer support plate, the upper surface of the outer support plate is covered with an outer geo-surface layer, and the height of the outer geo-surface layer is the same as the height of the local ground surface and the inner geo-surface layer.
7. The ground embedded conformal rainfall monitoring device of claim 6, wherein the outer simulated surface layer is a plastic orifice plate with an aperture ratio of 70-80%; the outer supporting plate is a stainless steel pore plate, and the aperture ratio is 50-60%.
8. The ground embedded type conformal rainfall monitoring device of claim 1, wherein the inner simulated surface layer is an anti-corrosion orifice plate, and the aperture ratio is 60-70%; the inner supporting plate is an anti-silt rigid pore plate, and the aperture ratio is 70-80%.
9. The ground-embedded conformal rainfall monitoring device of claim 1 wherein the rain gauge cylinder is cylindrical with an open area of 1.0m2And a height of 1.0 m.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022819898.9U CN213365075U (en) | 2020-11-30 | 2020-11-30 | Embedded shape-preserving rainfall monitoring device for ground |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022819898.9U CN213365075U (en) | 2020-11-30 | 2020-11-30 | Embedded shape-preserving rainfall monitoring device for ground |
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| CN213365075U true CN213365075U (en) | 2021-06-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114442199A (en) * | 2021-12-21 | 2022-05-06 | 中国农业科学院农田灌溉研究所 | Measuring system and measuring method for measuring effective coefficient of farmland rainfall |
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2020
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114442199A (en) * | 2021-12-21 | 2022-05-06 | 中国农业科学院农田灌溉研究所 | Measuring system and measuring method for measuring effective coefficient of farmland rainfall |
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