A precipitation sampling device for meteorological and oceanographic monitoring

Abstract

This invention discloses a precipitation sampling device for meteorological and oceanographic monitoring, specifically relating to the field of water sampling technology. It includes a sampling frame and a sampling rack. The sampling frame contains a sampling component to maintain stability during the water sampling process. The sampling component includes a bent pipe fixedly connected inside the sampling frame and a water pump fixedly connected inside the sampling frame. The bent pipe has an S-shaped structure, with one end penetrating the sampling frame and contacting the water. A flange connects the water pump and the bent pipe. A sample outlet pipe is fixedly connected to the end of the water pump away from the bent pipe. This invention utilizes the negative pressure generated inside the bent pipe to draw in surrounding water. Subsequently, four sampling pipes simultaneously draw water from different directions around the bent pipe, rapidly merging water from different areas around the sampling point. This allows the mixed water to better adapt to the velocity gradient between the outermost and inner sides of the bent pipe, significantly improving the reliability of subsequent analysis results.

Description

Technical Field

[0001] This invention relates to the field of water sampling technology, specifically to a precipitation sampling device for meteorological and oceanographic monitoring. Background Technology

[0002] Meteorological and oceanographic monitoring involves multi-parameter, continuous observation and data analysis of the marine environment and surrounding atmosphere. Its core function is to acquire real-time and historical marine and meteorological data to support various marine-related activities. It integrates meteorological and oceanographic expertise, covering a vast area from the sea surface to the seabed and from nearshore to open ocean. Utilizing various observation methods, it captures key physical, chemical, and biological parameters of the atmosphere and ocean, and processes the data to create directly applicable information products. In marine meteorological and environmental monitoring, marine precipitation sampling is a crucial step in obtaining the chemical properties of precipitation and analyzing its impact on the marine environment. Therefore, it is necessary to conduct marine precipitation sampling operations using precipitation sampling equipment to provide a foundation for subsequent sample testing. Currently, most sampling equipment connects to a suction pump via a sampling tube, directly drawing water from the target sea area into the sampling container, ensuring convenient water sampling. However, direct sampling equipment fails to disturb the water near the sampling point. After marine precipitation mixes with seawater, it easily forms local water areas with uneven composition. Sampling only a single static water body can easily lead to the sample failing to reflect the overall characteristics of the mixed precipitation water in the sea area. At the same time, droplets condensed on the sea surface and local pollutants near the sampling equipment can easily concentrate and enter the sampling tube, affecting the sampling effect of the equipment on the water body. Summary of the Invention

[0003] The purpose of this invention is to provide a precipitation sampling device for meteorological and oceanographic monitoring to address the aforementioned shortcomings in the technology.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a precipitation sampling device for meteorological and oceanographic monitoring, comprising a sampling frame and a sampling rack, wherein the sampling frame is provided with sampling components for maintaining the stability of the water sampling process;

[0005] The sampling assembly includes a bent pipe fixedly connected inside the sampling frame and a water pump fixedly connected inside the sampling frame. The bent pipe is designed with an S-shaped structure. One end of the bent pipe passes through the sampling frame and contacts the water. A flange is connected between the water pump and the bent pipe. A sample outlet pipe is fixedly connected to the end of the water pump away from the bent pipe. The sample outlet pipe guides the water sample inside the pump into the sampling frame. A flow component is provided at the meandering part of the bent pipe to regulate the water flow rate gradient.

[0006] The outside of the bend is equipped with a multi-directional sampling component for synchronous multi-channel water body acquisition;

[0007] A multi-flow component for allowing water to flow is provided between the bend and the multi-directional sampling component;

[0008] The sampling frame is equipped with a suction and push assembly inside, which is used to draw in and discharge water around the sampling frame, thereby increasing the flow range of water around the sampling frame.

[0009] Preferably, the flow assembly includes an inclined wedge fixedly connected inside the bend, and the inclined wedge is used to divide the internal space of the bend. A heating sleeve is fitted outside the bend, and the shape of the heating sleeve is adapted to the bend. A heating wire is installed inside the heating sleeve. A filter screen is connected between the water pump and the bend, and the filter screen is tightly fitted into the connection part between the water pump and the bend through a flange to achieve a stable connection between the two.

[0010] Preferably, the multi-directional sampling assembly includes a connecting cone frame sleeved on the outside of the bend, wherein part of the connecting cone frame is located inside the sampling frame and the rest is placed in the water body, and a receiving frame is fixedly sleeved on the outside of the connecting cone frame. Several connecting pipes are fixedly connected to the outside of the bend, and a sampling pipe is rotatably connected to the bottom end of each connecting pipe, and one end of the sampling pipe passes through the sampling frame and the connecting cone frame in sequence.

[0011] The receiving frame and the connecting cone are connected by a wave force assembly that drives the sampling tube to rotate.

[0012] Preferably, the wave force assembly includes a driven gear fixedly sleeved on the outside of the sampling tube and a concentric cylinder fixedly connected to the outside of the receiving frame and communicating with its interior. The top of the connecting cone is equipped with a bidirectional toothed ring that meshes with the driven gear. A first servo motor is fixedly connected inside the concentric cylinder. A driving gear is fixedly connected to the bottom of the first servo motor, and the driving gear meshes with the bidirectional toothed ring for transmission.

[0013] Preferably, the multi-flow assembly includes a strip corrugated plate fixedly connected to the bottom of the bidirectional toothed ring and a side corrugated plate fixedly connected to the bottom of the sampling tube. A multi-flow bearing ring is fixedly connected to the top of the connecting cone frame, and the multi-flow bearing ring is used to drive the bidirectional toothed ring to rotate along the top of the connecting cone frame. A crescent groove is opened between the multi-flow bearing ring and the receiving frame cylinder for guiding the strip corrugated plate to move. The strip corrugated plate and the side corrugated plate rotate along the outside of the connecting cone frame through the sampling tube.

[0014] Preferably, the suction and push assembly includes a mounting cylinder fixedly connected inside the sampling frame. The sampling frame is provided with two intercepting net frames on the outside, and the two intercepting net frames are respectively connected to the interior of both ends of the mounting cylinder. The mounting cylinder is provided with a synchronization groove on the outside that is connected to its interior. The synchronization groove has two conical push rings and two limiting rods symmetrically arranged inside, and the limiting rods are used to drive the conical push rings to move along the interior of the mounting cylinder.

[0015] The sampling frame is equipped with a reciprocating assembly that drives two limiting rods to move synchronously, and enables the two cone push rings to perform pushing and pulling actions respectively within the mounting cylinder.

[0016] Preferably, the reciprocating assembly includes a limiting frame fixedly connected to the sampling frame near the mounting cylinder and a slider fixedly connected between two limiting rods, with the slider slidably connected to the top of the limiting frame. A rotating disk is rotatably connected inside the limiting frame, and a guide cone is fixedly connected to one end of the rotating disk near the mounting cylinder. A swing arm is movably connected to the bottom of the limiting frame, and a groove is provided on one side of the swing arm for guiding the movement of the guide cone. A stabilizing cone is installed on the side of the slider near the swing arm, and a floating groove is provided at the top of the swing arm for the stabilizing cone to move.

[0017] The top of the sampling frame is equipped with an engagement assembly that drives the rotating disk to rotate.

[0018] Preferably, the meshing assembly includes a stand fixedly connected to the side of the sampling frame near the limiting frame, a concentric column rotatably connected to the top of the stand, and the concentric column is used to drive the rotating disk to rotate. A second servo motor is fixedly connected to the side of the stand near the concentric column, and a second bevel tooth that meshes with the first bevel tooth is fixedly connected to the output end of the second servo motor.

[0019] The technical effects and advantages provided by the present invention in the above technical solution are as follows:

[0020] 1. This invention uses the negative pressure generated inside the bend to draw in the surrounding water. Then, four sampling tubes simultaneously draw water from different directions around the bend, rapidly merging the water from different areas around the sampling point. This allows the mixed water to better adapt to the velocity gradient between the outermost and inner sides of the bend after entering the bend. Subsequently, the inclined wedge fits into the slow-flow area inside the bend, creating gentle resistance to the water flow and further reducing the water velocity inside. This provides a longer settling time for impurities, allowing the sample to contain more comprehensive environmental information and significantly improving the reliability of subsequent analysis results.

[0021] 2. This invention uses a heating wire to surround the meandering area of ​​a bend in the tube, providing uniform heat to the inner wall of the bend through heat conduction. The bend acts as a heat carrier, transferring heat to the water inside the tube. At the same time, the inclined wedge slows down the water flow and eliminates eddies, allowing the water to be fully heated while it stays in the inclined wedge. This avoids uneven local temperature caused by excessive water flow. The combination of these three elements ensures stable water temperature inside the tube and enhances temperature control through flow field stability, forming a synergistic relationship between temperature control without flow disturbance and flow stability to assist temperature control, further extending the effective analysis time of the sample.

[0022] 3. The present invention uses a sampling tube to pre-mix the water before it enters the bend, so that impurities are more evenly distributed in the water. This avoids the water flow in one direction carrying a large number of impurities and concentrating them on the inside of the bend. At the same time, the evenly distributed impurities can more fully respond to the centrifugal force and gravity of the bend. Combined with the trapping of the inclined wedge, this further reduces the introduction of additional impurities into the sample and greatly improves the reliability of subsequent analysis results.

[0023] 4. This invention disturbs the water around the sampling tube by rotating the side wave plate and the strip wave plate, which breaks the stratification boundary, mixes the surface water with the shallow water, and collects the water in the bend by the circumferential sampling tube, so that the water flow in the bend is better and the sampling quality of the water sample is further improved.

[0024] 5. The present invention, through the setting of the bidirectional toothed ring, enables the strip wave plate and the side wave plate to be staggered along the outside of the connecting cone frame. The driven gear and the driving gear make the rotation speed of the strip wave plate and the side wave plate different. As the strip wave plate and the side wave plate asymmetrically disturb the water around the connecting cone frame, the water will not form a fixed vortex. Instead, it will promote the mutual penetration of water at different levels and in different areas, further improving the stability of water sampling.

[0025] 6. The present invention, through the cooperation of the cone push ring and the mounting cylinder, can draw water around the sampling frame into the mounting cylinder and push the water in the mounting cylinder outward, thereby forming a local circulating flow field around the sampling frame. This flow field enables the continuous exchange of water in different areas and layers around the sampling frame, connecting cone frame and strip corrugated plate, ensuring that the water sample collected by the bend tube remains uniform, thus meeting the needs of long-term continuous sampling.

[0026] 7. Through the coordinated operation of the meshing components, the swing arm and the mounting cylinder, the present invention realizes the reciprocating alternation of water intake and exhaust from the outside of the sampling frame. The circulating flow field formed by this bidirectional flow is equivalent to building a buffer flow layer around the sampling frame, which can actively offset the impact of external ocean currents, further improve the adaptive stability and external anti-interference ability of the flow field in the sampling area, and ensure the stability of the collected samples. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0028] Figure 1 This is a schematic diagram of the overall structure of the sampling frame of the present invention;

[0029] Figure 2 This is a schematic diagram of the sampling frame of the present invention;

[0030] Figure 3 This is a schematic diagram of the inclined wedge structure of the present invention;

[0031] Figure 4 This is a schematic diagram of the assembly of the strip corrugated plate and the crescent groove of the present invention;

[0032] Figure 5 This is a schematic diagram of the multi-flow bearing ring of the present invention;

[0033] Figure 6 This is a schematic diagram of the bidirectional toothed ring of the present invention;

[0034] Figure 7 This is a schematic diagram of the assembly of the limiting rod and the synchronization groove of the present invention;

[0035] Figure 8 This is a schematic diagram of the conical push ring of the present invention;

[0036] Figure 9 This is an exploded view of the reciprocating component of the present invention;

[0037] Figure 10 This is a schematic diagram of the structure of the second bevel tooth of the present invention.

[0038] Explanation of reference numerals in the attached figures:

[0039] 1. Sampling rack; 11. Sampling frame;

[0040] 2. Sampling assembly; 21. Heating sleeve; 22. Bend; 23. Water pump; 24. Sample outlet pipe; 25. Filter screen; 26. Flange; 27. Wedge; 28. Heating wire;

[0041] 3. Multi-directional sampling assembly; 31. Connecting cone frame; 32. Receiving frame tube; 33. Connecting pipe; 34. Sampling tube; 35. Driven gear; 36. Bidirectional gear ring; 37. Driving gear; 38. Concentric cylinder; 39. First servo motor;

[0042] 4. Multi-flow assembly; 41. Multi-flow bearing ring; 42. Crescent groove; 43. Strip corrugated plate; 44. Side corrugated plate;

[0043] 5. Suction and push assembly; 51. Mounting cylinder column; 52. Synchronous groove; 53. Limiting rod; 54. Conical push ring; 55. Interception net frame;

[0044] 6. Reciprocating assembly; 61. Limiting frame; 62. Slider; 63. Swing arm; 64. Slide groove; 65. Rotary disk; 66. Guide cone; 67. Stabilizing cone; 68. Floating groove;

[0045] 7. Engaging assembly; 71. Second servo motor; 72. Stand; 73. Concentric column; 74. First bevel tooth; 75. Second bevel tooth. Detailed Implementation

[0046] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0047] This invention provides, for example Figure 1 , Figure 2 and Figure 3 The precipitation sampling device for meteorological and oceanographic monitoring shown includes a sampling frame 1 and a sampling frame 11. The sampling frame 1 is equipped with a sampling component 2 for maintaining the stability of the water sampling process.

[0048] The sampling assembly 2 includes a bent pipe 22 fixedly connected inside the sampling frame 1 and a water pump 23 fixedly connected inside the sampling frame 1. The bent pipe 22 is S-shaped, with one end penetrating the sampling frame 1 and contacting the water. A flange 26 is connected between the water pump 23 and the bent pipe 22. A sample outlet pipe 24 is fixedly connected to the end of the water pump 23 away from the bent pipe 22, and the sample outlet pipe 24 guides the water sample inside it into the sampling frame 11. The meandering part of the bent pipe 22 is equipped with a flow component for regulating the water flow velocity gradient.

[0049] The flow assembly includes an inclined wedge 27 that is fixedly connected to the inside of the bend 22, and the inclined wedge 27 is used to divide the internal space of the bend 22. A heating sleeve 21 is fitted on the outside of the bend 22, and the shape of the heating sleeve 21 is adapted to the bend 22. A heating wire 28 is installed inside the heating sleeve 21. A filter screen 25 is connected between the water pump 23 and the bend 22, and the filter screen 25 is tightly fitted into the connection part between the water pump 23 and the bend 22 through a flange 26 to achieve a stable connection between the two.

[0050] refer to Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the outside of the bend 22 is provided with a multi-directional sampling component 3 for synchronous multi-channel water body sampling. The multi-directional sampling component 3 includes a connecting cone frame 31 sleeved on the outside of the bend 22. The connecting cone frame 31 is partially located inside the sampling frame 1, and the remaining part is placed in the water body. A receiving frame cylinder 32 is fixedly sleeved on the outside of the connecting cone frame 31. Several connecting pipes 33 are fixedly connected to the outside of the bend 22. A sampling pipe 34 is rotatably connected to the bottom end of each connecting pipe 33. One end of the sampling pipe 34 passes through the sampling frame 1 and the connecting cone frame 31 in sequence.

[0051] A wave force assembly that drives the sampling tube 34 to rotate is connected between the receiving frame 32 and the connecting cone 31. The wave force assembly includes a driven gear 35 fixedly sleeved on the outside of the sampling tube 34 and a concentric cylinder 38 fixedly connected to the outside of the receiving frame 32 and communicating with its interior. A bidirectional toothed ring 36 that meshes with the driven gear 35 is installed at the top of the connecting cone 31. A first servo motor 39 is fixedly connected inside the concentric cylinder 38. A driving gear 37 is fixedly connected to the bottom of the first servo motor 39, and the driving gear 37 meshes with the bidirectional toothed ring 36 for transmission.

[0052] refer to Figure 4 , Figure 5 and Figure 6 As shown, the multi-flow assembly 4 includes a strip corrugated plate 43 fixedly connected to the bottom of the bidirectional toothed ring 36 and a side corrugated plate 44 fixedly connected to the bottom of the sampling tube 34. A multi-flow support ring 41 is fixedly connected to the top of the connecting cone frame 31, and the multi-flow support ring 41 is used to drive the bidirectional toothed ring 36 to rotate along the top of the connecting cone frame 31. A crescent groove 42 for guiding the strip corrugated plate 43 to move is opened between the multi-flow support ring 41 and the receiving frame 32. The strip corrugated plate 43 and the side corrugated plate 44 rotate along the outside of the connecting cone frame 31 through the sampling tube 34.

[0053] refer to Figure 7 , Figure 8 , Figure 9 and Figure 10 As shown, the sampling frame 1 is equipped with a suction and push assembly 5 inside, which is used to suck in and discharge the water around the sampling frame 1, thereby increasing the flow amplitude of the water around the sampling frame 1. The suction and push assembly 5 includes a mounting cylinder 51 fixedly connected inside the sampling frame 1. The sampling frame 1 is equipped with two interception net frames 55 on the outside, and the two interception net frames 55 are respectively connected to the inside of both ends of the mounting cylinder 51. The mounting cylinder 51 is provided with a synchronization groove 52 on the outside, which is connected to the inside. The synchronization groove 52 has two conical push rings 54 and two limiting rods 53 symmetrically inside, and the limiting rods 53 are used to drive the conical push rings 54 to move along the inside of the mounting cylinder 51.

[0054] refer to Figure 7 , Figure 8 , Figure 9 and Figure 10As shown, the sampling frame 1 is equipped with a reciprocating assembly 6 that drives the two limiting rods 53 to move synchronously, and enables the two cone push rings 54 to complete the pushing and pulling actions in the mounting cylinder 51 respectively. The reciprocating assembly 6 includes a limiting frame 61 fixedly connected to the side of the sampling frame 1 near the mounting cylinder 51 and a slider 62 fixedly connected between the two limiting rods 53. The slider 62 is slidably connected to the top of the limiting frame 61. A rotating disk 65 is rotatably connected inside the limiting frame 61. A guide cone 66 is fixedly connected to the end of the rotating disk 65 near the mounting cylinder 51. A swing arm 63 is movably connected to the bottom of the limiting frame 61. A groove 64 is opened on one side of the swing arm 63 for the guide cone 66 to move. A stabilizing cone 67 is installed on the side of the slider 62 near the swing arm 63. A floating groove 68 is opened at the top of the swing arm 63 for the stabilizing cone 67 to move.

[0055] refer to Figure 7 , Figure 8 , Figure 9 and Figure 10 As shown, the top of the sampling frame 1 is provided with a meshing assembly 7 that drives the rotating disk 65 to rotate. The meshing assembly 7 includes a stand 72 fixedly connected to the side of the sampling frame 1 near the limiting frame 61. A concentric column 73 is rotatably connected to the top of the stand 72, and the concentric column 73 is used to drive the rotating disk 65 to rotate. A second servo motor 71 is fixedly connected to the side of the stand 72 near the concentric column 73, and the output end of the second servo motor 71 is fixedly connected to a second bevel tooth 75 that meshes with the first bevel tooth 74.

[0056] Working principle:

[0057] When using;

[0058] refer to Figure 7 , Figure 8 , Figure 9 and Figure 10 As shown, when it is necessary to disturb the water around the sampling frame 1 so that it can fully contact the disturbed water around the connecting cone frame 31, the second servo motor 71 starts and drives the second bevel gear 75 to rotate synchronously. The second bevel gear 75 drives the concentric column 73 to rotate along the top of the upright frame 72 through meshing transmission with the first bevel gear 74. The rotation of the concentric column 73 then drives the rotating disk 65 to make a circular motion along the inside of the limiting frame 61. The rotating disk 65 synchronously drives the guide cone 66 to rotate. During the rotation of the guide cone 66, its movement trajectory is adapted to the slide 64, and then moves from the top to the bottom of the slide 64. During this movement, the swing arm 63 always maintains a fixed posture along one side of the limiting frame 61. When the guide cone 66 moves to the bottom of the inside of the slide 64 and abuts against the wall of the slide, it synchronously pushes the swing arm 63 to swing along one side of the limiting frame 61. During the swing of the swing arm 63, it drives the floating groove 68 opened at its top to move synchronously.

[0059] refer to Figure 7 , Figure 8 , Figure 9 and Figure 10 As shown, after the floating groove 68 comes into contact with the stabilizing cone column 67, it pushes the slider 62 to move synchronously along the top of the limiting frame 61. At the same time, the movement of the slider 62 drives the two limiting rods 53 to slide synchronously along the inside of the synchronous groove 52, thereby driving the two cone push rings 54 to alternately push and pull in the mounting cylinder 51. The alternating movement of the two cone push rings 54 causes the internal space of the mounting cylinder 51 to change accordingly. When one cone push ring 54 pushes the water in the mounting cylinder 51 to discharge outward, the other cone push ring 54 simultaneously sucks the water outside the sampling frame 1 into the mounting cylinder 51. Through this reciprocating action, the water circulation disturbance and exchange are realized.

[0060] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, when it is necessary to sample marine precipitation in the target water body, the sampling frame 1 is first deployed in the target area. Then, the heating wire 28 inside the heating sleeve 21 is activated. The current is converted into heat through the resistance wire and conducted to the water body inside the pipe through the wall of the bend 22. At the same time, the water pump 23 is powered on and started. Its internal impeller rotates at high speed, forming a local negative pressure at the bend 22 connected to the water inlet of the water pump 23. This negative pressure quickly breaks the fluid pressure balance in the four sampling tubes 34. The fluid in the tube is continuously sucked into the connecting pipe 33 connected to it under the action of pressure difference. Then, the first servo motor 39 drives the drive gear 37 to rotate inside the concentric cylinder 38 and the receiving frame cylinder 32. The drive gear 37 drives the bidirectional gear ring 36 to rotate along the top guide of the multi-flow bearing ring 41 through meshing transmission with the bidirectional gear ring 36.

[0061] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, when the bidirectional gear ring 36 rotates, its internal teeth mesh with the four driven gears 35, thereby driving the four driven gears 35 to rotate synchronously along the top of the connecting cone frame 31. Finally, the driven gears 35 drive the four sampling tubes 34 to rotate along the connecting tube 33 and the interior of the connecting cone frame 31. During the rotation of the sampling tubes 34, the side wave plates 44 rotate synchronously, disturbing the surrounding water. At the same time, the bidirectional gear ring 36 drives the strip wave plate 43 to rotate along the crescent groove 42, further disturbing the water near the connecting cone frame 31 and the side wave plate 44. The first servo motor 39 supports both forward and reverse rotation. In the rotation adjustment disturbance mode, the disturbed water is continuously transported to the inside of the bend 22 through the connecting pipe 33 to complete the circulation water suction process. The stable negative pressure generated by the continuous water suction of the water pump 23 drives the water into the meandering area of ​​the bend 22. Due to the arc structure of the bend 22, the water flow is forced to turn. When the water flow turns, the outermost flow channel inside the bend 22 has a long distance and low resistance, and the flow velocity is faster. The inner flow channel has a short distance and high resistance, and the flow velocity is slower, forming a natural velocity gradient between the outer fast and the inner slow flow. At the same time, the water keeps flowing under the action of continuous negative pressure, forming a thermal convection effect and achieving uniform heating of the water inside the pipe.

[0062] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the wedge 27 then engages with the slow-flow area inside the bend 22, creating gentle resistance to the water flow and further reducing the water velocity inside, providing sufficient settling time for impurities. Even tiny particles can be effectively separated. As the water flows through the bend 22, the impurities carried by it settle to the bottom of the bend 22 under the combined action of the slowed flow velocity and centrifugal force, completing initial storage. The negative pressure continuously generated by the pump 23 maintains the forward flow of the water. When the water passes through the filter screen 25 pre-set inside the pipeline, the small impurities that have not settled are further intercepted, ensuring that the fluid entering the pump 23 is clean. Finally, the clean fluid is pressurized and transported to the sample outlet pipe 24 connected to the outlet of the pump 23 under the continuous power of the pump 23. The sample outlet pipe 24 guides the water into the sampling frame 11, where the sampling frame 11 completes the storage of the water sample, thus successfully ending the entire water sampling operation.

[0063] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A precipitation sampling device for meteorological and oceanographic monitoring, comprising a sampling frame (1) and a sampling frame (11), characterized in that: The sampling rack (1) is equipped with a sampling component (2) for maintaining the stability of the water sampling process. The sampling assembly (2) includes a bent pipe (22) fixedly connected inside the sampling frame (1) and a water pump (23) fixedly connected inside the sampling frame (1). The bent pipe (22) is designed as an S-shaped structure. One end of the bent pipe (22) passes through the sampling frame (1) and contacts the water. A flange (26) is connected between the water pump (23) and the bent pipe (22). A sample outlet pipe (24) is fixedly connected to the end of the water pump (23) away from the bent pipe (22). The sample outlet pipe (24) guides the water sample inside to the sampling frame (11). A flow component is provided at the meandering part of the bent pipe (22) to regulate the water flow rate gradient. The outside of the bend (22) is provided with a multi-directional sampling component (3) for multi-channel synchronous water body sampling; A multi-flow component (4) for facilitating water flow is provided between the bend (22) and the multi-directional sampling component (3); The sampling rack (1) is equipped with a suction and push assembly (5) inside, which is used to suck in and discharge the water around the sampling rack (1), thereby increasing the flow amplitude of the water around the sampling rack (1); The flow assembly includes an inclined wedge (27) fixedly connected inside the bend (22) and the inclined wedge (27) is used to divide the internal space of the bend (22). The bend (22) is fitted with a heating sleeve (21) and the shape of the heating sleeve (21) is adapted to the bend (22). A heating wire (28) is installed inside the heating sleeve (21). A filter screen (25) is connected between the water pump (23) and the bend (22). The filter screen (25) is tightly fitted into the connection part of the water pump (23) and the bend (22) through a flange (26) to achieve a stable connection between the two. The multi-directional sampling assembly (3) includes a connecting cone (31) sleeved on the outside of the bend (22), wherein part of the connecting cone (31) is located inside the sampling frame (1), and the rest is placed in the water body, and a receiving frame (32) is fixedly sleeved on the outside of the connecting cone (31). Several connecting pipes (33) are fixedly connected to the outside of the bend (22), and a sampling pipe (34) is rotatably connected to the bottom end of each connecting pipe (33), and one end of the sampling pipe (34) passes through the sampling frame (1) and the connecting cone (31) in sequence. The receiving frame (32) and the connecting cone (31) are connected together by a wave force assembly that drives the sampling tube (34) to rotate; The wave force assembly includes a driven gear (35) fixedly sleeved on the outside of the sampling tube (34) and a concentric cylinder (38) fixedly connected to the outside of the receiving frame (32) and communicating with its interior. The top of the connecting cone (31) is equipped with a bidirectional toothed ring (36) that meshes with the driven gear (35). The inside of the concentric cylinder (38) is fixedly connected to a first servo motor (39). The bottom end of the first servo motor (39) is fixedly connected to a driving gear (37), and the driving gear (37) meshes with the bidirectional toothed ring (36) for transmission. The multi-flow assembly (4) includes a strip corrugated plate (43) fixedly connected to the bottom of the bidirectional toothed ring (36) and a side corrugated plate (44) fixedly connected to the bottom of the sampling tube (34). The top of the connecting cone (31) is fixedly connected to a multi-flow bearing ring (41), and the multi-flow bearing ring (41) is used to drive the bidirectional toothed ring (36) to rotate along the top of the connecting cone (31). The multi-flow bearing ring (41) and the receiving frame (32) are provided with a crescent groove (42) for guiding the strip corrugated plate (43) to move. The strip corrugated plate (43) and the side corrugated plate (44) rotate along the outside of the connecting cone (31) through the sampling tube (34).

2. The precipitation sampling device for meteorological and oceanographic monitoring according to claim 1, characterized in that: The suction and push assembly (5) includes a mounting cylinder (51) fixedly connected inside the sampling frame (1). The sampling frame (1) is provided with two interception net frames (55) on the outside, and the two interception net frames (55) are respectively connected to the inside of both ends of the mounting cylinder (51). The mounting cylinder (51) is provided with a synchronization groove (52) that is connected to its inside. The synchronization groove (52) has two conical push rings (54) and two limiting rods (53) symmetrically arranged inside. The limiting rods (53) are used to drive the conical push rings (54) to move along the inside of the mounting cylinder (51). The sampling frame (1) is equipped with a reciprocating assembly (6) that drives two limiting rods (53) to move synchronously, and enables the two cone push rings (54) to perform pushing and pulling actions respectively in the mounting cylinder (51).

3. A precipitation sampling device for meteorological and oceanographic monitoring according to claim 2, characterized in that: The reciprocating assembly (6) includes a limiting frame (61) fixedly connected to the sampling frame (1) near the mounting cylinder (51) and a slider (62) fixedly connected between two limiting rods (53). The slider (62) is slidably connected to the top of the limiting frame (61). A rotating disk (65) is rotatably connected inside the limiting frame (61). A guide cone (66) is fixedly connected to one end of the rotating disk (65) near the mounting cylinder (51). A swing arm (63) is movably connected to the bottom of the limiting frame (61). A groove (64) is provided on one side of the swing arm (63) for guiding the movement of the guide cone (66). A stabilizing cone (67) is installed on the side of the slider (62) near the swing arm (63). A floating groove (68) is provided at the top of the swing arm (63) for the stabilizing cone (67) to move. The top of the sampling rack (1) is provided with a meshing assembly (7) that drives the rotating disk (65) to rotate.

4. A precipitation sampling device for meteorological and oceanographic monitoring according to claim 3, characterized in that: The meshing assembly (7) includes a stand (72) fixedly connected to the side of the sampling frame (1) near the limiting frame (61). The top of the stand (72) is rotatably connected to a concentric column (73), and the concentric column (73) is used to drive the rotating disk (65) to rotate. The side of the stand (72) near the concentric column (73) is fixedly connected to a second servo motor (71), and the output end of the second servo motor (71) is fixedly connected to a second bevel tooth (75) that meshes with the first bevel tooth (74).

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