Rain gauge

Abstract

The utility model belongs to the technical field of measuring equipment, and particularly relates to a rain gauge, which comprises a base and a shell, a rain receiving port is arranged in the shell, a funnel is arranged below the rain receiving port, and a plurality of measuring mechanisms are arranged below the funnel; the funnel is connected with a plurality of flow guide pipes, and the flow guide pipes are used for conveying rainwater in the funnel into the measuring mechanism; the flow guide pipes are in one-to-one correspondence with the measuring mechanisms, and the vertical heights of the connection points of different flow guide pipes and the funnel are different. The rain gauge is provided with a plurality of measuring mechanisms, the diversion pipes with different heights are arranged on the funnel, and the diversion pipes are in one-to-one correspondence with the measuring mechanisms, so that the number of the measuring mechanisms participating in metering can be automatically adjusted under different rainfall intensities, and the corresponding measuring time can be shortened by the plurality of measuring mechanisms participating in measurement; the working stability of the measuring mechanism can be ensured to a certain extent, and the accuracy of a measuring result is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to measuring equipment technical field, concretely relates to a rain gauge. BACKGROUND

[0002] Precipitation is a key concept for measuring how much precipitation, and belongs to important meteorological elements. Whether meteorology, hydrology, ocean, environmental observation, or aviation, railway traffic safety, precipitation observation has extremely important significance. As an important instrument for observing precipitation, the accuracy of the rain gauge directly determines the reliability of the measurement data.

[0003] At present, there are many types of rain gauges, among which the tipping bucket rain gauge has become one of the most widely used rain gauges due to its many advantages. It can accurately grasp the time, automatically record data, and facilitate data collection, compilation and processing. The working principle of the tipping bucket rain gauge is as follows: the rain inlet at the top receives precipitation (rainwater), and the precipitation flows into the tipping bucket through the water guide pipe. When the rainfall reaches the capacity of the tipping bucket, the tipping bucket will overturn, driving the magnetic steel to overturn and triggering the reed switch switch, thereby generating a pulse signal and sending it to the data collector. The collector receives the pulse signal and accumulates it, so that it can realize continuous and long-term measurement and recording of the precipitation process. However, the existing tipping bucket rain gauge also has some shortcomings: generally only one tipping bucket is used for measurement, and if the rainfall intensity is very large, the working strength of the tipping bucket is large, and the tipping bucket is prone to stall, which will lead to inaccurate measurement of rainfall, and the larger the rainfall intensity, the larger the error. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming the above-mentioned shortcomings of the prior art and providing a rain gauge that can adapt to different rainfall intensities and ensure the accuracy of measurement.

[0005] The technical scheme of the utility model is: a rain gauge, comprising a base and a shell, the shell is internally provided with a rain inlet, the lower part of the rain inlet is provided with a hopper, and a plurality of measuring mechanisms are arranged below the hopper; a plurality of flow guide pipes are connected to the hopper, and the flow guide pipes are used to convey the rainwater in the hopper to the measuring mechanisms; the flow guide pipes correspond one-to-one to the measuring mechanisms, and the vertical heights of the connection points of the different flow guide pipes and the hopper are different.

[0006] Further, the plurality of measuring mechanisms are all tipping bucket measuring mechanisms.

[0007] Further, the plurality of measuring mechanisms are arranged in a horizontal straight line.

[0008] Further, the measuring mechanism has 3.

[0009] Further, the tipping bucket type measuring mechanism comprises a tipping bucket, a supporting column, a permanent magnet steel and a dry reed, the supporting column is fixed on the base, the tipping bucket is rotatably installed on the supporting column through a bearing, the permanent magnet steel is fixed on the tipping bucket, and the dry reed is fixed on the supporting column; when the tipping bucket is turned over once, the permanent magnet steel and the dry reed interact, thereby generating a pulse signal.

[0010] Further, the base is provided with water outlets, and the water outlets are arranged on both sides of the plurality of measuring mechanisms, so that rainwater is poured into the corresponding water outlets when the tipping bucket of the measuring mechanism is turned over.

[0011] Further, the outer end of the tipping bucket is designed as a drooping arc-shaped guide tip, so that the tipping bucket has a beautiful and smooth shape, better tipping performance and easy cleaning and maintenance.

[0012] Further, the base is provided with a control box, and the control box is used for collecting signals of all the measuring mechanisms.

[0013] Further, the base is provided with a support.

[0014] Further, the base is provided with a leveling mechanism, and the measuring mechanism is arranged on the leveling mechanism; the leveling mechanism is used for ensuring that the measuring mechanism is horizontally arranged.

[0015] Further, the leveling mechanism can adopt a structure in the prior art, for example, a rectangular plate provided with adjusting studs at four corners, so that the levelness of the rectangular plate can be adjusted by rotating the adjusting studs. The water outlets are symmetrically arranged on both sides of the leveling mechanism. The control box can be arranged directly below the leveling mechanism.

[0016] Further, the measuring mechanism can also be used in cooperation with a plurality of other types of measuring devices, for example, a weighing type rain detection device.

[0017] The rain gauge in the application is provided with a plurality of measuring mechanisms, and height-adjustable guide pipes are arranged on the funnel, the guide pipes are in one-to-one correspondence with the measuring mechanisms, so that the number of the measuring mechanisms participating in measurement can be automatically adjusted under different rainfall intensities, the plurality of measuring mechanisms participating in measurement can reduce the corresponding measurement time, the measurement process is more rapid and timely, and therefore, the working stability of the measuring mechanism can be ensured to a certain extent, and the accuracy of the measurement result is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a sectional view of the embodiment 1 of the application;

[0019] Figure 2 is a schematic view of the internal structure of the embodiment 1 of the application without a shell;

[0020] Figure 3 This is a schematic diagram of the measuring mechanism in Embodiment 1 of this utility model;

[0021] Figure 4 This is a schematic diagram of the base portion in Embodiment 1 of this utility model;

[0022] In the diagram: 1. Shell; 2. Rain inlet; 21. Filter plate; 3. Funnel; 4. Guide pipe; 5. Measuring mechanism; 51. Tipping bucket; 52. Support column; 53. Reed switch; 54. Buffer bucket; 55. Arc-shaped guide tip; 6. Leveling mechanism; 7. Water outlet chamber; 8. Base; 9. Bracket. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to specific embodiments. Methods or functional components not specifically described in the embodiments are all prior art.

[0024] Example 1

[0025] like Figures 1-4 As shown, this embodiment is a rain gauge, including a base 8 and a housing 1. A rain-collecting inlet 2 is provided inside the housing 1, and a filter plate 21 is detachably installed in the rain-collecting inlet 2. A funnel 3 is positioned directly below the rain-collecting inlet 2, and multiple measuring mechanisms 5 are positioned below the funnel 3. Multiple guide pipes 4 are connected to the funnel 3, and the guide pipes 4 are used to transport rainwater from the funnel 3 to the measuring mechanisms 5. Each guide pipe 4 corresponds to one measuring mechanism 5, and the vertical height of the connection points between different guide pipes 4 and the funnel 3 is different. For example, the first connection point is located at the tip of the funnel, the second connection point is located at half the height of the funnel, and the third connection point is located near the top of the funnel.

[0026] In this embodiment, there are three measuring mechanisms 5, all of which are tipping bucket measuring mechanisms 5; the three measuring mechanisms 5 are arranged horizontally in a straight line. Each tipping bucket measuring mechanism 5 includes a tipping bucket 51, a support column 52, a constant magnet (not shown), and a reed switch 53. The support column 52 is fixed to the base 8. The tipping bucket 51 is rotatably mounted on the support column 52 via bearings. A constant magnet is fixed to the tipping bucket 51, and a reed switch 53 is fixed to the support column 52. Each time the tipping bucket 51 flips, the constant magnet and the reed switch 53 interact, generating a pulse signal. In this embodiment, each tipping bucket measuring mechanism 5 also includes a buffer bucket 54, which is positioned above the support column 52 and corresponds to the outlet of the guide pipe 4. A filter plate 21 can also be installed in the buffer bucket 54 to reduce the direct impact of water flow on the tipping bucket 51 and to filter impurities.

[0027] In the embodiment, the base 8 is provided with water outlets 7, and the water outlets 7 are arranged on both sides of the plurality of measuring mechanisms 5, so that when the tipping buckets 51 of the measuring mechanisms 5 are turned over, the rainwater is poured into the corresponding water outlets 7.

[0028] In the embodiment, the outer end of the tipping bucket 51 is designed as a drooping arc-shaped guide tip 55. The base 8 is provided with a control box for collecting signals of all the measuring mechanisms 5. The base 8 is provided with a support 9. The base 8 is provided with a leveling mechanism 6, and the measuring mechanisms 5 are arranged on the leveling mechanism 6.

[0029] The use method of the rain gauge in the embodiment is the same as that of the existing tipping bucket rain gauge, and the advantage is that the plurality of tipping bucket measuring devices can automatically adjust the number of the measuring mechanisms 5 participating in measurement under different rainfall intensities, the plurality of measuring mechanisms 5 participating in measurement can reduce the corresponding measurement time, the reaction is more timely and effective, so that the working stability of the entire measuring mechanism 5 can be ensured to a certain extent, and the accuracy of the measurement result is improved. Specifically, when the rainfall is small, the rainwater can only be stored to the tip of the funnel 3, at this time, only the lowermost guide pipe of the funnel 3 can guide the rainwater to the middle tipping bucket measuring mechanism 5, and the measuring mechanism 5 performs single measurement. When the rainfall increases, the rainwater is stored to more than half of the funnel height, the second guide pipe can guide the rainwater to the corresponding measuring mechanism 5, so that two measuring mechanisms 5 work, and similarly, when the rainfall continues to increase, the rainwater is stored to the entire funnel height, the third guide pipe can also guide the rainwater to the corresponding measuring mechanism 5, so that three measuring mechanisms 5 work at the same time. The measurement result is the superposition of the measurement signals of the three measuring mechanisms.

[0030] In other embodiments, the measuring mechanism 5 can also use a plurality of other types of measuring gauges in cooperation with the tipping bucket measuring mechanism 5, such as a weighing type rain detection device in cooperation with the tipping bucket measuring mechanism 5.

[0031] The above is only some embodiments of the utility model, and is not used for limiting the utility model. For those skilled in the art, the utility model can have the combination and modification of the foregoing various technical features, and the improvement, modification, equivalent replacement of the utility model, or the structure or method of the utility model is used in other fields to obtain the same effect, which all belong to the protection range of the utility model.

Claims

1. A rain gauge comprising a base and a housing, the housing having a rain inlet provided therein, and a funnel provided below the rain inlet, characterised in that: A plurality of measuring mechanisms are arranged below the funnel; a plurality of flow guide pipes are connected to the funnel, and the flow guide pipes are used to transport rainwater in the funnel to the measuring mechanisms; the flow guide pipes correspond to the measuring mechanisms one by one, and the vertical heights of the connection points of different flow guide pipes and the funnel are different.

2. The rain gauge according to claim 1, characterized in that: The plurality of measuring mechanisms are all flip bucket type measuring mechanisms.

3. The rain gauge of claim 2, wherein: The plurality of measuring mechanisms are arranged in a horizontal straight line.

4. The rain gauge of claim 2, wherein: The measuring mechanisms are three.

5. A rain gauge according to any one of claims 2 to 4, characterised in that: The flip bucket type measuring mechanism comprises a flip bucket, a support column, a permanent magnet steel and a dry reed tube, the support column is fixed on a base, the flip bucket is rotatably installed on the support column through a bearing, the permanent magnet steel is fixed on the flip bucket, and the dry reed tube is fixed on the support column; when the flip bucket is overturned, the permanent magnet steel and the dry reed tube interact with each other.

6. The rain gauge of claim 3, wherein: The base is provided with water outlets, and the water outlets are arranged on both sides of the plurality of measuring mechanisms respectively, so that rainwater is poured into the corresponding water outlets when the flip bucket of the measuring mechanism is overturned.

7. The rain gauge of claim 5, wherein: The outer end of the flip bucket is designed as a drooping arc surface guide tip.

8. The rain gauge of claim 1, wherein: The base is provided with a control box, and the control box is used to collect signals generated by the measuring mechanisms.

9. The rain gauge of claim 1, wherein: The base is provided with a support.

10. The rain gauge of claim 1, wherein: The base is provided with a leveling mechanism, and the measuring mechanisms are arranged on the leveling mechanism. The base is provided with a leveling mechanism, and the measuring mechanisms are arranged on the leveling mechanism.

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