CN220671668U - Small capacitive rainfall sensor - Google Patents
Small capacitive rainfall sensor Download PDFInfo
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- CN220671668U CN220671668U CN202322249756.7U CN202322249756U CN220671668U CN 220671668 U CN220671668 U CN 220671668U CN 202322249756 U CN202322249756 U CN 202322249756U CN 220671668 U CN220671668 U CN 220671668U
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- rain
- rain collecting
- water container
- filter screen
- shell
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 74
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 230000000903 blocking effect Effects 0.000 claims description 12
- 230000003139 buffering effect Effects 0.000 claims description 10
- 238000007667 floating Methods 0.000 claims description 9
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 230000008901 benefit Effects 0.000 abstract description 8
- 238000005303 weighing Methods 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 description 9
- 238000009434 installation Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000010485 coping Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
Abstract
The utility model discloses a small-sized capacitive rainfall sensor, which comprises a shell, a rain collecting container, a siphon drain pipe and a capacitive liquid level meter, wherein the rain collecting container is arranged in the shell and is fixedly limited by a lower blanking cover of the shell; the rain collecting container comprises a rain collecting surface, a filter screen, air holes and a water container, wherein the lowest part of the center of the rain collecting surface is provided with a rain collecting hole, the filter screen is arranged around the rain collecting hole, the top of the shell is provided with an integrated cutting edge, rainwater entering from the cutting edge is guided to the filter screen through the rain collecting surface and filtered and then enters the water container through the rain collecting hole, a siphon drain pipe is arranged in the water container, the inlet of the siphon drain pipe is communicated with the water container, the outlet of the siphon drain pipe is communicated with the outside, and a capacitance type liquid level meter is arranged in the water container; the rain gauge has the advantages of small volume and continuous recording, not only can continuously record the rainfall like a tipping bucket type rain gauge, a capacitance grid type rain gauge or a weighing type rain gauge, but also can be small in volume like a piezoelectric type rain gauge and a photoelectric type rain gauge, and is flexible to deploy.
Description
Technical field:
the utility model relates to the technical field of instruments and meters, in particular to a small capacitive rainfall sensor.
The background technology is as follows:
in the prior art, a tipping bucket type, a piezoelectric type, a photoelectric type, a weighing type and a capacitive grid type are mostly used. The piezoelectric type and the photoelectric type are also called rainfall intensity sensors, can only measure the current instantaneous rainfall intensity, cannot directly measure the rainfall, and the accumulated rainfall can only be given by a software calculation mode. The weighing type sensor and the grid type sensor belong to sensors with rainwater collecting functions, and can directly provide accumulated rainfall in a certain time, but have the defects of large volume, high cost and inconvenient installation and transportation.
The utility model comprises the following steps:
the utility model provides a small capacitive rainfall sensor, which solves the problems that the tipping bucket type and the capacitive grid type sensors are large in size, high in cost and inconvenient to install and transport, and the piezoelectric type and the photoelectric type cannot directly measure accumulated rainfall, so that the calibration and maintenance of common users are not realized.
In order to solve the technical problems, the utility model provides a technical scheme that: the utility model provides a small-size capacitive rainfall sensor, includes shell, collection rain container, siphon drain pipe and capacitive level gauge, its characterized in that: the rain collecting container is arranged in the shell and is fixed and limited through a lower blocking cover of the shell;
the rain collecting container comprises a rain collecting surface, a filter screen, air holes and a water container, wherein the rain collecting surface is of a circular arc structure, a rain collecting hole is formed in the lowest position of the center of the rain collecting surface, the filter screen surrounds the rain collecting hole, an integrated cutting edge is formed in the top of the shell, rainwater entering from the cutting edge passes through the rain collecting surface to be guided to the filter screen after being filtered and enters the water container through the rain collecting hole, the top of the water container is provided with the air holes in the lower side of the rain collecting surface, a siphon drain pipe is arranged in the water container, the inlet of the siphon drain pipe is communicated with the water container, the outlet of the siphon drain pipe penetrates through the bottom cover of the water container and the lower blanking cover of the shell to be communicated with the outside, and the capacitance type liquid level meter is arranged in the water container.
Further, the filter screen is of a cylindrical structure, a filter screen cover is detachably arranged on the upper side of the filter screen, and a level gauge is arranged on the filter screen cover.
Furthermore, the lower side of the rain collecting surface is provided with an arc-shaped blocking cover coaxial with the filter screen, a placing cavity for placing the buffer floating ball is formed in the filter screen, the filter screen cover and the arc-shaped blocking cover, the bottom of the arc-shaped blocking cover is provided with a buffer through hole communicated with the placing cavity and the water container, and the buffer through hole is coaxial with the filter hole.
Further, the inlet of the siphon drain pipe is positioned in the groove on the bottom cover of the water container.
Further, the shell is made of stainless steel.
The beneficial effects of the utility model are as follows:
1. the utility model discloses a shell, collection rain container, siphon drain pipe and capacitance type liquid level meter between the cooperation, form the level measurement and add the rain gauge of siphon drainage form, it need not hold too much rainwater, also need not great tipping bucket structure, possess piezoelectric type and photoelectric sensor small advantage in volume, also possess tipping bucket formula and hold the advantage that grid type sensor can directly measure the accumulated rainfall in the certain time simultaneously, simple structure, small in size, low cost and measurement are reliable.
2. The tipping bucket water storage turnover principle similar to a tipping bucket type rain gauge is adopted, a small-volume rain collecting container with a specific volume is used, a siphon structure is integrated in the container, rapid drainage is triggered when the rainwater in the container reaches a specific quantity, the drainage times are recorded by software and are given to a processor in a pulse or digital signal form, and the rainwater before the drainage is not reached is measured and recorded by a simple capacitive liquid level measuring device and can be given to the processor in a pulse or digital signal form, so that more accurate rainfall data can be obtained, the equipment volume is reduced, and the equipment cost is reduced.
3. The utility model provides an integrated level ware of collection rain filter screen and filter screen lid can shelter from collection rain filter screen top, prevents that the rainwater of entering from not getting into in the water container through filtering, and the filter screen lid can be dismantled, conveniently clear up the maintenance to the filter screen part.
4. This application buffering floater normal time is shutoff to buffering through-hole under the action of gravity, reduces the evaporation of water in the water container, and the water through the filter screen gets into and places the intracavity back buffering floater and come up under the effect of buoyancy, makes the water after the filtration get into the water container to reduce the float of water in the water container, reduce the measurement error during the drainage, improve the ability of handling continuous heavy rainfall.
5. This application adopts siphon drainage structure, when can realizing automatic drainage, realizes measuring accumulated rainfall, just the import of siphon drain pipe is in the recess on the water container bottom cover, be convenient for drain as much as possible the water in the water container to cooperate the buffering floater design, reduce the measurement error during the drainage, improve the ability of handling continuous heavy rainfall, simultaneously, drain pipe afterbody mountable silicone tube also can support the precipitation and collect when accelerating drainage speed, convenience of customers carries out data inspection.
The foregoing and other objects, features and advantages of the utility model will be apparent from the following more particular description of preferred embodiments, as illustrated in the accompanying drawings.
Description of the drawings:
in order to more clearly illustrate the utility model or the technical solutions of the prior art, the drawings that are necessary for the description of the embodiments will be briefly described, it being obvious that the drawings in the following description are only one of the utility models, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of the present application.
In the figure: 1-shell, 2-rain collecting container, 3-siphon drain pipe, 4-capacitance liquid level meter, 5-cutting edge, 6-filter screen cover, 7-level device, 8-buffer floating ball, 9-placing cavity, 10-buffer through hole, 11-shell 1 lower blanking cover;
21-rain collecting surface, 22-filter screen, 23-ventilation holes, 24-water container, 25-bottom cover of water container 24 and 26-grooves.
The specific embodiment is as follows:
embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. While the utility model is susceptible of embodiment in the drawings, it is to be understood that the utility model may be embodied in various forms and should not be construed as limited to the embodiments set forth herein, but rather are provided to provide a more thorough and complete understanding of the utility model. It should be understood that the drawings and embodiments of the utility model are for illustration purposes only and are not intended to limit the scope of the present utility model.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.
The names of messages or information interacted between the devices in the embodiments of the present utility model are for illustrative purposes only and are not intended to limit the scope of such messages or information.
Example 1
As shown in fig. 1, a small-sized capacitive rainfall sensor comprises a shell 1, a rain collecting container 2, a siphon drain pipe 3 and a capacitive liquid level meter 4, wherein the rain collecting container 2 is arranged in the shell 1 and is fixedly limited by a shell lower blanking cover 11; wherein, shell 1 is stainless steel material, and blanking cover 11 is connected with shell 1 can be dismantled under the shell, and stainless steel is corrosion-resistant, when increasing casing life, still is convenient for protect collection rain container 2, and blanking cover 11's can dismantle the connection under the shell, is convenient for take collection rain container 2 dismouting.
The rain collecting container 2 comprises a rain collecting surface 21, a filter screen 22, air holes 23 and a water container 24, wherein the rain collecting surface 21 is of a circular arc structure, a rain collecting hole is formed in the lowest center of the rain collecting surface 21, the filter screen 22 surrounds the rain collecting hole, an integrated cutting edge 5 is arranged at the top of the shell 1, rainwater entering from the cutting edge 5 is guided to the filter screen 22 through the rain collecting surface 21 and filtered and then enters the water container 24 through the rain collecting hole, the air holes 23 on the lower side of the rain collecting surface 21 are formed in the top of the water container 24, a siphon drain pipe 3 is arranged in the water container 24, an inlet of the siphon drain pipe 3 is communicated with the water container 24, an outlet of the siphon drain pipe 3 penetrates through a bottom cover 25 of the water container and a lower blocking cover 11 of the shell to be communicated with the outside, and the capacitance type liquid level meter 4 is arranged in the water container 24; the rain gauge in the form of liquid level measurement and siphon drainage is formed by matching the shell 1, the rain collecting container 2, the siphon drainage pipe 3 and the capacitance type liquid level meter 4, excessive rainwater does not need to be contained, a large tipping bucket structure is not needed, the rain gauge has the advantage of smaller volumes of piezoelectric sensors and photoelectric sensors, and meanwhile, the rain gauge has the advantage that the tipping bucket sensors and the capacitance grid sensors can directly measure accumulated rainfall in a certain time, and the rain gauge has the advantages of simple structure, small volume, low cost and reliable measurement; by adopting the siphon drainage structure, the automatic drainage can be realized, meanwhile, the measurement of accumulated rainfall is realized, when the rainwater in the container reaches a specific quantity, the rapid drainage is triggered, the drainage times are recorded by software and are given to the processor in a pulse or digital signal form, and the rainwater before the drainage is not reached is measured and recorded by a simple capacitive liquid level measuring device and can be given to the processor in a pulse or digital signal form, so that more accurate rainfall data can be obtained, the equipment volume is reduced, and the equipment cost is reduced; the capacitive simple liquid level meter is adopted, the precipitation resolution of less than or equal to 0.1mm is supported, and the capability of coping with intermittent micro rainfall is improved.
Wherein, the integrated structure of the cutting edge 5, the funnel and the rain collecting container 2 is adopted, the area of the cutting edge 5 can use 141mm diameter or conventional 200mm diameter, and the ground installation, bracket installation and other forms are supported; the sensor has the advantages of small volume and continuous recording, so that the sensor can continuously record rainfall like a tipping bucket type, a capacitance grid type or a weighing type rain gauge, has small volume like a piezoelectric type or a photoelectric type rain gauge, and is flexible to deploy. Because the working principle of the rain gauge is closer to that of a traditional rain gauge, the interpretation cost is low, and the user maintenance and calibration are more convenient.
Wherein, the filter screen 22 is of a cylindrical structure, the upper side of the filter screen 22 is detachably provided with a filter screen 22 cover 6, and the filter screen 22 cover 6 is provided with a level 7; the filter screen encloses and keeps off the periphery of the rain collecting hole, filters the water entering, reduces sundries entering from the cutting edge 5 and enters the rain collecting hole, thereby influencing the measurement accuracy; the rain collecting filter screen and the filter screen cover are integrated with the level device 7, the top of the rain collecting filter screen can be shielded, rainwater entering the water container 24 is prevented from entering the water container without being filtered, the filter screen cover is detachable, the filter screen part is convenient to clean and maintain, the level device 7 can indicate the placed level state, and the measurement accuracy is increased.
Example two
As shown in fig. 1, this embodiment is obtained by adding technical features such as a buffer floating ball 8 on the basis of the first embodiment, and other technical features are the same as those of the first embodiment, and the same features are not described herein, wherein the difference between this embodiment and the first embodiment is that: the lower side of the rain collecting surface 21 is provided with a circular arc-shaped blocking cover coaxial with the filter screen 22, a placing cavity 9 for placing the buffer floating ball 8 is formed in the filter screen 22, the filter screen 22 cover 6 and the circular arc-shaped blocking cover, and a buffer through hole communicated with the placing cavity 9 and the water container 24 is formed at the bottom of the circular arc-shaped blocking cover and coaxial with the filter hole.
In this embodiment, the buffer floating ball 8 seals the buffer through hole under the action of gravity at normal time, so as to reduce evaporation of water in the water container 24, and the buffer floating ball 8 floats upwards under the action of buoyancy force after water passing through the filter screen 22 enters the placing cavity 9, so that filtered water enters the water container 24, and impact force entering the water container 24 is reduced as much as possible, thereby reducing water floating in the water container 24, reducing metering error during drainage, and improving the capability of coping with continuous heavy rainfall.
Example III
As shown in fig. 1, the present embodiment is obtained by adding technical features such as a groove 26 on the basis of the second embodiment, and other technical features are the same as those of the second embodiment, and the details are not repeated herein, wherein the difference between the present embodiment and the second embodiment is that: the inlet of the siphon drain pipe 3 is positioned in a groove 26 on the bottom cover 25 of the water container.
In this embodiment, the inlet of the siphon drain pipe 3 is located in the groove 26 on the bottom cover 25 of the water container, so that as much water in the water container 24 can be drained as possible, and the design of the buffer floating ball 8 is matched, so that the metering error during drainage is reduced, the capability of coping with continuous heavy rainfall is improved, meanwhile, the tail of the drain pipe can be provided with a silicone tube, the drainage speed is increased, meanwhile, the collection of precipitation can be supported, and the user can conveniently perform data inspection.
The application process of the technical scheme comprehensively formed by the embodiment comprises the following steps: the utility model provides an installation is accomplished the back and is adjusted the levelness through level 7, the rainwater falls into the casing from blade 5, and carry out filter screen 22 under the water conservancy diversion effect of collection rain face 21, then get into place in the chamber 9, when place the water accumulation in the chamber 9 to certain altitude after buffering floater 8 floats and releases the shutoff to the buffering through-hole, place the water in the chamber 9 and get into water container 24 from the buffering through-hole, the air in the water container 24 is discharged from bleeder vent 23, capacitance sensor measures the water in the water container 24, after the water in the water container 24 stores to certain altitude (highly be higher than in the siphon critical point height in the drain pipe 3), under the siphon effect of siphon drain pipe 3, the water in the water container 24 is discharged, external air gets into water container 24 from bleeder vent 23 and realizes the atmospheric pressure balance, when the surface of water in the water container 24 drops below the import of siphon drain pipe 3, stop automatic drainage, get into next circulation.
Note that the above is only a preferred embodiment of the present utility model and the technical principle applied. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.
Claims (5)
1. The utility model provides a small-size capacitive rainfall sensor, includes shell, collection rain container, siphon drain pipe and capacitive level gauge, its characterized in that: the rain collecting container is arranged in the shell and is fixed and limited through a lower blocking cover of the shell;
the rain collecting container comprises a rain collecting surface, a filter screen, air holes and a water container, wherein the rain collecting surface is of a circular arc structure, a rain collecting hole is formed in the lowest position of the center of the rain collecting surface, the filter screen surrounds the rain collecting hole, an integrated cutting edge is formed in the top of the shell, rainwater entering from the cutting edge passes through the rain collecting surface to be guided to the filter screen after being filtered and enters the water container through the rain collecting hole, the top of the water container is provided with the air holes in the lower side of the rain collecting surface, a siphon drain pipe is arranged in the water container, the inlet of the siphon drain pipe is communicated with the water container, the outlet of the siphon drain pipe penetrates through the bottom cover of the water container and the lower blanking cover of the shell to be communicated with the outside, and the capacitance type liquid level meter is arranged in the water container.
2. A miniature capacitive rain sensor according to claim 1, characterized by: the filter screen is cylindrical structure, and its upside can be dismantled and be provided with the filter screen lid, and is provided with the level ware on the filter screen lid.
3. A miniature capacitive rain sensor according to claim 2, characterized by: the rain collecting surface is characterized in that the lower side of the rain collecting surface is provided with an arc-shaped blocking cover coaxial with the filter screen, a placing cavity for placing a buffering floating ball is formed in the filter screen, the filter screen cover and the arc-shaped blocking cover, a buffering through hole communicated with the placing cavity and the water container is formed in the bottom of the arc-shaped blocking cover, and the buffering through hole is coaxial with the filter hole.
4. A miniature capacitive rain sensor according to claim 3, characterized by: the inlet of the siphon drain pipe is positioned in the groove on the bottom cover of the water container.
5. A miniature capacitive rain sensor according to claim 4, characterized by: the shell is made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322249756.7U CN220671668U (en) | 2023-08-22 | 2023-08-22 | Small capacitive rainfall sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322249756.7U CN220671668U (en) | 2023-08-22 | 2023-08-22 | Small capacitive rainfall sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220671668U true CN220671668U (en) | 2024-03-26 |
Family
ID=90336195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322249756.7U Active CN220671668U (en) | 2023-08-22 | 2023-08-22 | Small capacitive rainfall sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220671668U (en) |
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2023
- 2023-08-22 CN CN202322249756.7U patent/CN220671668U/en active Active
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