Meteorological station and rainwater flow meter thereof

Abstract

The utility model discloses a weather station and a rainwater flow meter thereof. The weather station comprises a shell, a tipping bucket mechanism, a magnet, a Hall sensor and a circuit board, the shell is provided with a water collecting opening; the tipping bucket mechanism comprises a first mounting seat and a tipping bucket, the first mounting seat is located in the shell, and the tipping bucket is rotatably arranged on the first mounting seat and located below the water collecting opening to receive rainwater; the magnet is arranged in the center of the tipping bucket and swings along with swinging of the tipping bucket, the Hall sensor is located on one side of the magnet and used for detecting the swinging frequency of the magnet along with the tipping bucket, and the circuit board is electrically connected with the Hall sensor. And the circuit board is used for acquiring the total precipitation according to the swing times detected by the Hall sensor, is arranged in the shell through a second mounting seat and is positioned on one side of the first mounting seat, and the circuit board is positioned in a cavity in the second mounting seat. The rainwater flow meter can operate stably for a long time.

Description

Technical Field

[0001] This utility model relates to the field of meteorological monitoring technology, and in particular to a meteorological station and its rainwater flow meter. Background Technology

[0002] Weather stations are facilities used to monitor weather conditions and are typically equipped with various sensors and instruments, such as thermometers, hygrometers, anemometers, and barometers. Among these, rainwater flow meters (rain gauges) are a crucial component of weather stations, used to measure precipitation and provide vital data support for weather forecasting, agricultural irrigation, and water resource management. Existing rainwater flow meters primarily rely on mechanical switches, which are prone to wear and tear or aging over long-term use, leading to a decline in their performance. Utility Model Content

[0003] Therefore, it is necessary to provide a weather station and its rainwater flow meter to solve the problem that existing rainwater flow meters mainly rely on mechanical switches and are prone to wear or aging due to long-term use.

[0004] To achieve the above objectives, the inventors provide a rainwater flow meter, comprising: a housing, a tipping mechanism, a magnet, a Hall sensor, and a circuit board;

[0005] The outer casing is provided with a water collection port;

[0006] The tipping mechanism includes a first mounting base and a tipping bucket. The first mounting base is located inside the outer casing, and the tipping bucket is rotatably mounted on the first mounting base and located below the water inlet to collect rainwater.

[0007] The magnet is located at the center of the tipping bucket and swings with the tipping bucket. The Hall sensor is located on one side of the magnet and is used to detect the number of times the magnet swings with the tipping bucket. The circuit board is electrically connected to the Hall sensor and is used to obtain the total rainfall based on the number of swings detected by the Hall sensor. The circuit board is located inside the housing and on one side of the first mounting seat via a second mounting seat. The circuit board is located in the cavity inside the second mounting seat.

[0008] Furthermore: the tipping bucket includes a body and two hinge plates. The body has two buckets for collecting rainwater along its length. The two hinge plates are located at the center of the two buckets and on opposite sides of the body. The hinge plates are hinged to the first mounting base so that the tipping bucket can swing relative to the first mounting base. The magnet is embedded in one of the hinge plates.

[0009] Furthermore, the surface of the first mounting base has two protruding supports, and a pin passes through the two supports and two hinge plates so that the hinge plates are hinged to the first mounting base.

[0010] Furthermore: the support has a through hole through which a pin passes, and one of the two supports is detachable at the location of the through hole.

[0011] Furthermore: the detachable support includes a support arm, a cover plate, and a stud. The support arm and the stud protrude from the surface of the first mounting base. The top of the support arm has the through hole, and the upper part of the through hole is open. The cover plate is located above the support arm and covers the opening of the through hole to prevent the pin from axially dislodging upward from the through hole. The cover plate and the stud are connected by bolts.

[0012] Furthermore: the cross-section of the top of the shared wall between the two buckets of the main body is an inverted triangle.

[0013] Furthermore: the second mounting base includes a base body and a cover body, the base body having the cavity with an upper opening, the base body being bolted to the bottom plate of the housing, the cover body being located above the base body and bolted to the base body, the cover body covering the cavity.

[0014] Furthermore: the outer casing includes a base plate, a housing, and a water collection hopper. The base plate is detachably connected to the housing, and a cavity is formed between the two to accommodate the first mounting seat and the second mounting seat. The base plate supports the first mounting seat and the second mounting seat. The top of the housing is provided with a slot. The water collection hopper is located in the slot and is detachably connected to the housing. The water collection hopper has the water collection port.

[0015] Furthermore, it also includes a battery, which is electrically connected to the circuit board.

[0016] To achieve the above objectives, the inventors also provide a weather station, including a rainwater flow meter, a wind direction detector, and a wind speed detector. The rainwater flow meter is the rainwater flow meter described in any of the above embodiments, and the wind direction detector and the wind speed detector are respectively mounted on the outer casing of the rainwater flow meter.

[0017] Unlike existing technologies, the above technical solution has the following beneficial effects:

[0018] High-precision rainfall measurement can be achieved through precise design of the tipping bucket capacity and the sensitivity of the Hall sensor. A magnet is installed at the center of the tipping bucket to ensure a stable path as it moves with the bucket, improving the accuracy of the Hall sensor detection. The circuit board receives electrical signals from the Hall sensor and calculates the total rainfall according to a preset algorithm. A second mounting bracket protects the internal circuit board and Hall sensor, effectively preventing the intrusion of moisture and dust, allowing the rainwater flow meter to operate normally in harsh environments. This reduces the impact of external pollutants on the performance of the rainwater flow meter, ensuring long-term stable operation.

[0019] The above description of the utility model is merely an overview of the technical solution of this application. In order to enable those skilled in the art to better understand the technical solution of this application and to implement it based on the description and drawings, and to make the above-mentioned objectives and other objectives, features and advantages of this application easier to understand, the following description is provided in conjunction with the specific embodiments and drawings of this application. Attached Figure Description

[0020] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of specific embodiments of this utility model and other related contents, and should not be considered as limitations on this application.

[0021] Figure 1 This is an exploded view of the base plate, tipping mechanism, magnet, Hall sensor, and circuit board in this embodiment;

[0022] Figure 2 This is an exploded view of the first mounting base and the pin in this embodiment;

[0023] Figure 3 This is an exploded view of the tipping bucket, magnet, and pin in this embodiment;

[0024] Figure 4 This is a cross-sectional view of the rainwater flow meter in this embodiment;

[0025] Figure 5 This is an exploded view of the base plate and shell in this embodiment.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Outer shell; 11. Base plate; 12. Shell; 13. Water collection hopper; 131. Water collection port;

[0028] 2. Tipping mechanism; 21. First mounting base; 211. Support; 2111. Support arm; 2112. Cover plate; 2113. Stud; 2114. Through hole; 22. Tipping bucket; 221. Body; 2211. Common wall; 2212. Slot; 222. Hinge plate; 23. Pin;

[0029] 3. Magnet;

[0030] 4. Hall effect sensor;

[0031] 5. Circuit board;

[0032] 6. Second mounting base; 61. Base body; 62. Cover body;

[0033] 7. Battery;

[0034] 8. Wind direction detector;

[0035] 9. Wind speed detector. Detailed Implementation

[0036] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0037] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0038] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0039] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0040] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0041] Without further limitations, the use of terms such as “comprising,” “including,” “having,” or other similar open-ended expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0042] As understood in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0043] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0044] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral arrangement; it can be a direct connection or an indirect connection through an intermediate medium; it can be a relationship of two components combined together, an interaction relationship between two components, or a connection within two structures. Those skilled in the art to which this application pertains can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0045] Please see Figures 1 to 5 This embodiment provides a rainwater flow meter, including: a housing 1, a tipping mechanism 2, a magnet 3, a Hall sensor 4, and a circuit board 5;

[0046] The outer casing 1 is provided with a water collection port 131;

[0047] The tipping mechanism 2 includes a first mounting base 21 and a tipping bucket 22. The first mounting base 21 is located inside the outer casing 1, and the tipping bucket 22 is rotatably mounted on the first mounting base 21 and located below the water collection port 131 to collect rainwater.

[0048] Magnet 3 is located at the center of tipping bucket 22 and swings with tipping bucket 22. Hall sensor 4 is located on one side of magnet 3 and is used to detect the number of times magnet 3 swings with tipping bucket 22. Circuit board 5 is electrically connected to Hall sensor 4 and is used to obtain the total precipitation based on the number of swings detected by Hall sensor 4. Circuit board 5 is located inside housing 1 through second mounting base 6 and is located on one side of first mounting base 21. Circuit board 5 is located in the cavity inside second mounting base 6.

[0049] It should be mentioned that the outer casing 1 is made of weather-resistant material and has a water collection port 131 for collecting rainwater. The outer casing 1 is designed to be dustproof and waterproof, ensuring that the internal components are not affected by the external environment. The first mounting base 21 is fixed inside the outer casing 1 to support the tipping bucket 22. The mounting base is provided with a pin 23, which allows the tipping bucket 22 to rotate freely around the pin 23. The tipping bucket 22 is divided into two symmetrical buckets, each of which automatically flips after being filled with a certain amount of rainwater. The design of the tipping bucket 22 is generally symmetrical, and the center of gravity is located directly above or below the pin 23. The magnet 3 is installed at the center of the tipping bucket 22. The center position means that the magnet 3 is installed near the geometric center or center of gravity of the tipping bucket 22, which ensures that the movement path of the magnet 3 is consistent each time it flips. Preferably, the magnet 3 is located directly above the pin 23. The design of the magnet 3 ensures that it can accurately trigger the Hall sensor 4 each time the tipping bucket 22 flips. The Hall sensor 4 is installed near the magnet 3 to detect the number of times the magnet 3 moves. Each time the tipping bucket 22 flips, the Hall sensor 4 records a signal.

[0050] When rainfall begins, rainwater enters the outer casing 1 through the collection port 131 and falls into the tipping buckets 22. Once each bucket of the tipping bucket 22 is filled with a certain amount of rainwater (e.g., 0.1 mm or 0.2 mm), due to the shift in the center of gravity, the tipping bucket 22 automatically tilts, emptying the water and allowing another smaller bucket to move to the receiving position. A magnet 3 is installed at the center of the tipping bucket 22 and moves with it as the bucket tilts. Each time the tipping bucket 22 tilts, the magnet 3 triggers the Hall sensor 4, generating an electrical signal. The circuit board 5 receives the electrical signal from the Hall sensor 4 and calculates the total rainfall according to a preset algorithm. Each tilt represents a certain amount of rainfall, and the circuit board 5 determines the total rainfall by accumulating the number of tilts.

[0051] The above technical solution has the following beneficial effects:

[0052] By precisely designing the capacity of the tipping bucket 22 and the sensitivity of the Hall sensor 4, high-precision rainfall measurement can be achieved. The magnet 3 is installed at the center of the tipping bucket 22, ensuring a stable path as it moves with the bucket's swing, thus improving the accuracy of the Hall sensor 4. The circuit board 5 receives the electrical signal from the Hall sensor 4 and calculates the total rainfall according to a preset algorithm. The second mounting bracket protects the internal circuit board 5 and Hall sensor 4, effectively preventing the intrusion of moisture and dust, allowing the rainwater flow meter to operate normally in harsh environments, reducing the impact of external pollutants on its performance, and ensuring long-term stable operation.

[0053] Please see Figures 1 to 4 In this embodiment, the tipping bucket 22 includes a body 221 and two hinge plates 222. The body 221 has two buckets for collecting rainwater along its length. The two hinge plates 222 are located at the center of the two buckets and on opposite sides of the body 221. The hinge plates 222 are hinged to a first mounting base 21 so that the tipping bucket 22 can swing relative to the first mounting base 21. A magnet 3 is embedded in one of the hinge plates 222. The two buckets are typically mirror-symmetrical to ensure consistent water volume during each tipping. Each hinge plate 222 is hinged to the first mounting base 21 via a pin 23, forming a pivot point that allows the tipping bucket 22 to tip around this pivot point. The hinge plate 222 provides a mounting position for the magnet 3. The hinge plate 222 has a slot 2212 for embedding the magnet 3. The magnet 3 is embedded in the slot 2212 of the hinge plate 222, positioned above the pivot point.

[0054] Please see Figure 2 In this embodiment, two supports 211 protrude from the surface of the first mounting base. A pin 23 passes through the two supports 211 and two hinge plates 222, so that the hinge plates 222 are hinged to the first mounting base 21. The two supports 211 protrude from the surface of the first mounting base and are arranged parallel to each other. Preferably, the supports 211 and the first mounting base are integrally formed. Each support 211 has a through hole 2114 for the pin 23 to pass through. The pin 23 passes through the support 211 and the hinge plate 222, forming a pivot point, allowing the tipping bucket 22 to tilt around this pivot point. The supports 211 and the pin 23 are made of wear-resistant and anti-aging materials, such as engineering plastics, which reduces wear problems caused by long-term use and extends the service life of the equipment.

[0055] When rainwater enters the tipping bucket 22 through the collection inlet 131 and fills one of the buckets, the tipping bucket 22 will automatically tip over due to the shift in the center of gravity. At this time, the hinge plate 222 rotates around the pin 23, causing the other bucket to move to the water-receiving position. Each time the tipping bucket 22 tipps over, the magnet 3 embedded in one of the hinge plates 222 also moves, triggering an electrical signal via the Hall sensor 4.

[0056] Please see Figure 2 In this embodiment, the support 211 has a through hole 2114 through which the pin 23 passes. One of the two supports 211 is detachable at the position of the through hole 2114 to perform necessary maintenance or replacement work, such as cleaning, lubrication or replacement of worn parts.

[0057] Please see Figure 2 In this embodiment, the detachable support 211 includes a support arm 2111, a cover plate 2112, and a stud 2113. The support arm 2111 and the stud 2113 protrude from the surface of the first mounting base. The top of the support arm 2111 has a through hole 2114, which is open at the top. The cover plate 2112 is located above the support arm 2111 and covers the open part of the through hole 2114 to prevent the pin 23 from coming out of the through hole 2114. The cover plate 2112 and the stud 2113 are connected by bolts. The support arm 2111, as a supporting part, protrudes from the surface of the first mounting base and is preferably integrally formed with the first mounting base. Of course, the two can be two independent parts, fastened together by bolts. The through hole 2114 on the support arm 2111 is not complete. The complete through hole 2114 is formed only after the detachable cover plate 2112 is fixed in the open position. When maintenance or replacement is required, the cover plate 2112 can be easily removed. The specific steps are as follows: Loosen the bolts securing the cover plate 2112 and remove the cover plate 2112. Insert or remove the pin 23 through the through hole 2114 at the top of the support arm 2111 to perform necessary maintenance or replacement work, such as cleaning, lubrication, or replacement of worn parts. After maintenance is completed, reposition the cover plate 2112, ensuring it covers the open portion of the through hole 2114, and secure it to the stud 2113 with bolts.

[0058] In some embodiments, the detachable connection between the cover plate 2112 and the support arm 2111 does not require bolts, but can be achieved by snap-fit ​​connection.

[0059] Please see Figure 3 In this embodiment, the cross-section of the top of the common wall 2211 between the two buckets of the main body 221 is an inverted triangle. The inverted triangle design of the top of the common wall 2211 helps to guide the water flow to flow quickly along the common wall 2211, and avoids the water flow being obstructed or accumulating on the common wall 2211 during the overturning process.

[0060] Please see Figure 1 and Figure 4In this embodiment, the second mounting base 6 includes a base body 61 and a cover 62. The base body 61 has an open cavity at the top and is bolted to the base plate 11 of the outer casing 1. The cover 62 is located above the base body 61 and is bolted to it, covering the cavity. The base body 61 can be mounted on the base plate 11 inside the outer casing 1. The base body 61 is the main support part of the second mounting base 6 and has an open cavity at the top for accommodating the circuit board 5 and other electronic components. The cover 62 is located above the base body 61 and is bolted to it, covering the open portion of the cavity. The circuit board 5 and other electronic components are placed inside the cavity of the base body 61 and protected by the base body 61 and the cover 62, preventing external moisture and dust from entering.

[0061] Please see Figure 4 and Figure 5 In this embodiment, the outer casing 1 includes a base plate 11, a housing 12, and a water collection hopper 13. The base plate 11 is detachably connected to the housing 12, and a cavity is formed between them to accommodate the first mounting base 21 and the second mounting base 6. The base plate 11 supports the first mounting base 21 and the second mounting base 6. The top of the housing 12 is provided with a slot, and the water collection hopper 13 is located in the slot and detachably connected to the housing 12. The water collection hopper 13 has a water collection port 131. The housing 12 and the base plate 11 form a closed cavity, which can effectively prevent dust and moisture from entering, ensuring that the first mounting base 21, the second mounting base 6, the Hall sensor 4, and the circuit board 5 are in a dry and clean environment.

[0062] Optionally, the water collection hopper 13 and the housing 12 are connected by threads, wherein the connection part of the water collection hopper 13 has external threads, and the inner wall of the slot at the top of the housing 12 has matching internal threads, ensuring that the water collection hopper 13 can be firmly and tightly fixed to the housing 12, preventing rainwater leakage and providing reliable sealing performance, and avoiding loosening or displacement due to vibration or other external forces. In some embodiments, the water collection hopper 13 and the housing 12 can be connected by snap-fit.

[0063] Please see Figure 5 In this embodiment, the rainwater flow meter also includes a battery 7, which is electrically connected to the circuit board 5. The battery 7 provides power to the rainwater flow meter and is typically a rechargeable lithium battery. The circuit board 5 has a battery 7 interface for electrical connection to the battery 7, ensuring a stable and reliable power supply. The second mounting base 6 has an opening on its wall for the wires between the battery 7 and the circuit board 5 to pass through. A power management module is integrated on the circuit board 5, responsible for monitoring the battery 7's charge level, charging status, and voltage regulation. The power management module converts the voltage provided by the battery 7 into a stable voltage suitable for each component. For example, the Hall sensor 4 typically requires a stable 5V or 3.3V DC voltage.

[0064] In some embodiments, the rainwater flow meter may be externally powered.

[0065] Please see Figure 5 This embodiment also provides a weather station, including a rainwater flow meter, a wind direction detector 8, and a wind speed detector 9. The rainwater flow meter is the same as described in any of the above embodiments. The wind direction detector 8 and the wind speed detector 9 are respectively mounted on the outer casing 1 of the rainwater flow meter. The function of the wind direction detector 8 is to measure the direction of the wind, i.e., the direction from which the wind is blowing. The function of the wind speed detector 9 is to measure the speed of the wind, i.e., the distance the air travels per unit time. Wind direction and wind speed data are of great significance in many fields such as meteorological research, environmental protection, and engineering design.

[0066] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A rainwater flow meter, characterised in that, The rainwater flow meter comprises: a housing, a tipping bucket mechanism, a magnet, a Hall sensor and a circuit board; the housing is provided with a water collecting opening; the tipping bucket mechanism comprises a first mounting seat and a tipping bucket, the first mounting seat is located in the housing, and the tipping bucket is rotatably arranged on the first mounting seat and located below the water collecting opening to collect rainwater; the magnet is arranged at a central position of the tipping bucket and swings with the tipping bucket, the Hall sensor is located on one side of the magnet and is used to detect the number of swings of the magnet with the tipping bucket, the circuit board is electrically connected with the Hall sensor and is used to obtain the total precipitation according to the number of swings detected by the Hall sensor, the circuit board is arranged in the housing through a second mounting seat and is located on one side of the first mounting seat, and the circuit board is located in a cavity in the second mounting seat.

2. The rainwater flow meter according to claim 1, characterized in that: The tipping bucket comprises a body and two hinged plates, the body has two buckets for collecting rainwater along the length direction, the two hinged plates are located at the central positions of the two buckets and are located on opposite sides of the body, the hinged plates are hinged with the first mounting seat so that the tipping bucket can swing relative to the first mounting seat, and the magnet is embedded in one of the hinged plates.

3. The rainwater flow meter according to claim 2, wherein: The surface of the first mounting seat is provided with two supports, and a pin shaft passes through the two supports and the two hinged plates so that the hinged plates are hinged with the first mounting seat.

4. The rainwater flow meter according to claim 3, wherein: The support has a through hole for the pin shaft to pass through, and one of the two supports is detachable at the position of the through hole.

5. The rainwater flow meter according to claim 4, wherein: The detachable support comprises a support arm, a cover plate and a stud, the support arm and the stud protrude from the surface of the first mounting seat respectively, the top of the support arm has the through hole, the upper part of the through hole is open, the cover plate is located above the support arm and covers the opening of the through hole to prevent the pin shaft from coming out of the through hole upwardly, and the cover plate is connected with the stud through a bolt.

6. The rainwater flow meter of claim 2, wherein: The top end of the shared wall between the two buckets is in the shape of an inverted triangle.

7. The rainwater flow meter of claim 1, wherein: The second mounting seat comprises a seat body and a cover body, the seat body has the cavity with an open top, the seat body is connected with the bottom plate of the housing through a bolt, and the cover body is located above the seat body and is connected with the seat body through a bolt, and the cover body covers the cavity.

8. The rainwater flow meter of claim 1, wherein: The housing comprises a bottom plate, a shell and a water collecting bucket, the bottom plate is detachably connected with the shell and forms a cavity between the bottom plate and the shell for accommodating the first mounting seat and the second mounting seat, the bottom plate supports the first mounting seat and the second mounting seat, the top of the shell is provided with a slot, the water collecting bucket is located in the slot and is detachably connected with the shell, and the water collecting bucket has the water collecting opening.

9. The rainwater flow meter of claim 1, wherein: A battery is further included, and the battery is electrically connected with the circuit board.

10. A weather station characterized by: The rainwater flow meter, the wind direction detector and the wind speed detector are included, the rainwater flow meter is any one of the rainwater flow meters according to claims 1 to 9, and the wind direction detector and the wind speed detector are arranged on the housing of the rainwater flow meter respectively.

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