Time sequence rainfall isotope sample collection device

Abstract

The invention relates to the technical field of hydrological equipment, and discloses a time sequence rainfall isotope sample collecting device which comprises a bottom plate, a fixing seat is fixedly mounted on the bottom plate, a switching column is rotatably mounted on the fixing seat, a rotating disc is arranged on the switching column, a plurality of mounting grooves are annularly and uniformly formed in the rotating disc at intervals, and a plurality of sampling holes are formed in the mounting grooves. Rotating blocks are arranged in the multiple mounting grooves, fixing shafts are arranged on the rotating blocks, grooves matched with the fixing shafts are formed in the mounting grooves, the rotating blocks are rotationally mounted in the mounting grooves through the fixing shafts, torsional springs are arranged between the fixing shafts and the groove walls of the mounting grooves, suction cups are fixedly mounted on the rotating blocks, and collecting bottles are arranged on the suction cups. Two limiting columns are fixedly mounted at the upper end of the inner wall of the collecting bottle, and counterweight balls are movably mounted on the two limiting columns. The purpose of the invention is to solve the problem that a sample in a container is easy to evaporate when the current rainfall sample collecting device is generally placed in the field and is stored for a long time.

Description

Technical Field

[0001] The invention belongs to the technical field of hydrological equipment, and in particular relates to a time-series precipitation isotope sample collection device. Background Art

[0002] In isotope hydrology research, water isotope sampling is a crucial step, directly impacting the accuracy of analytical results. The accuracy and reliability of analytical results, in turn, determine the credibility of the analytical conclusions. When studying hydrological processes in a region, it is often necessary to sample groundwater, surface water (rivers, lakes, reservoirs, etc.), precipitation, soil water, and other water bodies within the region.

[0003] Precipitation isotopic information is crucial for understanding the sources of water vapor, the rainfall-runoff relationship, and the local water cycle. Previous studies have primarily analyzed rainfall isotopes based on individual rainfall events, but the isotopic variations during rainfall have been insufficiently characterized. The key lies in collecting rainwater isotope samples throughout the rainfall process. Precipitation sample collection devices typically require field placement or manual collection, which is time-consuming and labor-intensive. It is also difficult to ensure timely collection of samples for every rainfall event. Furthermore, if samples are stored in the sampling device for extended periods, they evaporate. Evaporation can cause isotopic fractionation in precipitation, affecting the hydrogen and oxygen isotope concentrations in the precipitation sample and failing to reflect the original isotopic composition of the precipitation. Therefore, we propose a time-series precipitation isotope sampling device to address these issues. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that the current precipitation sample collection device is generally placed in the field and the sample in the container is easy to evaporate if stored for a long time.

[0005] In order to achieve the above technical objectives, the technical solutions adopted by the present invention are as follows:

[0006] A time-series precipitation isotope sample collection device comprises a base plate, a fixed seat is fixedly mounted on the base plate, an adapter column is rotatably mounted on the fixed seat, a rotating disk is provided on the adapter column, a plurality of mounting grooves are evenly arranged at annular intervals on the rotating disk, a rotating block is provided in each of the plurality of mounting grooves, a fixed shaft is provided on the rotating block, a groove adapted to the fixed shaft is provided in the mounting groove, the rotating block is rotatably mounted in the mounting groove via the fixed shaft, a torsion spring is provided between the fixed shaft and the wall of the mounting groove, a suction cup is fixedly mounted on the rotating block, a collection bottle is provided on the suction cup, two limiting columns are fixedly mounted on the upper end of the inner wall of the collection bottle, counterweight balls are movably mounted on the two limiting columns, and the diameter of the counterweight balls is larger than the diameter of the mouth of the collection bottle. The cam is secured to the bottom of the rotary table and is adapted to engage the bottom end of the rotary table, the cam being secured to the bottom end of the rotary table and being adapted to engage the bottom end of the rotary table.

[0007] The invention further defines a mechanism comprising a ratchet, a rocker, a first limit block, a second limit block, a driving pawl, a first support, a second support, a braking pawl, and a spring. The ratchet is fixedly mounted on an adapter post, the rocker is rotatably mounted on the adapter post and is located below the ratchet, the first limit block and the second limit block are fixedly mounted on a fixed base, the rocker is located between the first limit block and the second limit block, a return spring is fixedly mounted between the second limit block and the rocker, the driving pawl is rotatably mounted on the rocker, a return torsion spring is provided at the junction between the driving pawl and the rocker, the first support and the second support are fixedly mounted on the fixed base, the braking pawl is rotatably mounted on the first support, the spring is fixedly mounted between the first support and the braking pawl, and the driving pawl and the braking pawl are adapted to mate with the ratchet. With this structural design, when the rocker swings once between the first limit block and the second limit block, the driving pawl, in conjunction with the braking pawl, drives the ratchet to rotate according to a set angle, thereby sequentially bringing the collection bottles on the rotating disk to the bottom of the inclined water tank.

[0008] The control wheel that is located at the top of described sliding panel also is provided with an end face, and the control wheel that is located at the top of described sliding panel also is provided with an end face. With this structural design, when the rain sensor detects rain, the driving rod cooperates with the positioning rod to drive the water collecting bucket downward, thereby causing the fixed wedge to move downward, and the rocker can be moved. With the cooperation of the blocking mechanism and the drain piece, the water collecting bucket can reciprocate to collect and drain water to complete the drive of the entire device.

[0009] The blocking mechanism further comprises two vertical rods, a fixed plate, a movable stopper, and a return spring. The two vertical rods are fixedly mounted on the bottom of the inner wall of the water receiving bucket, the fixed plate is fixedly mounted on the upper end of the vertical rods, and the movable stopper is movably mounted below the fixed plate. The movable stopper is movably mounted between the two vertical rods, and the movable stopper is adapted to fit within the water leakage hole. This structural design is simple and easy to use.

[0010] The invention further defines that the drainage member includes a fixed pipe and a top post, the fixed pipe being fixedly mounted on the upper end of the base plate, the upper end of the fixed pipe being fixedly mounted on a fixing bracket, the top post being fixedly mounted on the fixing bracket, the top post of the fixed pipe being located directly below the drainage hole, and the base plate being provided with a plurality of drainage holes. With this structural design, when the water receiving bucket moves downward and the top post pushes the movable plug upward, the drainage hole will be in a conductive state, thereby draining some of the rainwater in the water receiving bucket.

[0011] Further defined, a magnet is fixedly mounted on the upper end of the fixed tube, and a magnetic patch is fixedly mounted on the bottom of the water receiving bucket, which is magnetically attracted to the magnet. With this structural design, when the water receiving bucket moves downward and contacts the upper end of the fixed tube, the magnet exerts a magnetic attraction on the magnetic patch, temporarily opening the leak hole in the water receiving bucket, thereby draining most of the rainwater in the water receiving bucket.

[0012] The fixed cover is further defined as having a vertical slot that intercepts the inclined water inlet trough, an inverted L-shaped rod movably inserted into the vertical slot, an annular protrusion fixedly mounted on the inverted L-shaped rod, a tension spring fixedly mounted on the inverted L-shaped rod between the annular protrusion and the inner wall of the fixed cover, and the lower end of the inverted L-shaped rod positioned below the water receiving bucket. With this structural design, when the water receiving bucket moves downward and contacts the inverted L-shaped rod, the inverted L-shaped rod can be driven downward, thereby placing the inclined water inlet trough in a conductive state. When the water receiving bucket moves downward, rainwater is directed into the collection bottle for collection.

[0013] It is further defined that the upper end of the rotating disk is provided with an adapter groove, a rotating column is rotatably installed in the adapter groove, the upper end of the rotating column passes through the upper end of the rotating disk, the rotating column passes through one end of the rotating disk and is fixedly installed with a knob, the interior of the rotating disk is provided with a wiring groove between the adapter groove and the groove, a pull rope is provided in the wiring groove, a winding roller is fixedly installed on the fixed shaft, a cavity connected to the groove is provided on the rotating disk, the winding roller is rotatably installed in the cavity, and the two ends of the pull rope are fixedly connected to the winding roller and the rotating column respectively. With this structural design, when the rotating disk is removed from the adapter column and the rotating column is rotated by the knob, the winding roller can be driven to rotate by the pull rope, which is convenient for driving the rotating block on the rotating disk to complete the reset.

[0014] It is further defined that a connecting seat is fixedly mounted on the lower end of the rotating disk, a limited slot is defined at the lower end of the connecting seat, and the adapter post is movably inserted into the limited slot. This structural design, in which the connecting seat cooperates with the adapter post, facilitates the disassembly of the rotating disk.

[0015] The invention adopting the above technical solution has the following advantages:

[0016] 1. The present invention can collect rainwater flowing from the water receiving trough and the inclined water inlet through the collection bottle. When the rotating disk is rotated, the rotating block close to the support ring moves to the opening of the support ring. At this time, the rotating block and the collection bottle are turned over by the torsion spring. The counterweight ball inside the collection bottle will block the bottle opening under the action of gravity, which can prevent the rainwater in the collection bottle from evaporating.

[0017] 2. In the present invention, when the rain sensor detects rain, the drive motor drives the drive rod to rotate, prompting the water collecting bucket to move downward, thereby driving the rocker to move. At this time, the inverted L-shaped plug-in rod releases the blockage of the inclined water trough, and the drain member cooperates with the blocking mechanism to discharge part of the rainwater in the water collecting bucket. Finally, it returns to its initial state under the elastic force of the compression spring. When the rocker swings, it will drive the ratchet to rotate a set angle under the cooperation of the driving pawl and the braking pawl, so as to bring the collection bottles on the rotating disk to the bottom of the notch of the inclined water trough in turn, thereby automatically completing the rainwater collection work. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present application can be further illustrated by the non-limiting embodiments shown in the accompanying drawings;

[0019] Figure 1 It is a structural schematic view of a time sequence precipitation isotope sample collection device of the present application;

[0020] Figure 2 It is a sectional view structural schematic view of a fixed cover part in a time sequence precipitation isotope sample collection device of the present application;

[0021] Figure 3 It is a structural schematic view of a bottom plate part in a time sequence precipitation isotope sample collection device of the present application;

[0022] Figure 4 It is a structural schematic view of a rotating disc and support ring part in a time sequence precipitation isotope sample collection device of the present application; Figure 3 It is an enlarged structural schematic view of A in the figure;

[0023] Figure 5 It is a structural schematic view of a rotating disc and support ring part in a time sequence precipitation isotope sample collection device of the present application;

[0024] Figure 6 It is a structural schematic view of a fixed seat and adapter column part in a time sequence precipitation isotope sample collection device of the present application;

[0025] Figure 7 It is a sectional view structural schematic view of a rotating disc part in a time sequence precipitation isotope sample collection device of the present application;

[0026] Figure 8 It is a structural schematic view of a rotating disc and support ring part in a time sequence precipitation isotope sample collection device of the present application; Figure 7 It is an enlarged structural schematic view of B in the figure;

[0027] Figure 9 It is a structural schematic view of a collection bottle and rotating block part in a time sequence precipitation isotope sample collection device of the present application;

[0028] Figure 10 It is a sectional view structural schematic view of a time sequence precipitation isotope sample collection device of the present application;

[0029] Figure 11 It is a structural schematic view of a rotating disc and support ring part in a time sequence precipitation isotope sample collection device of the present application; Figure 10 It is an enlarged structural schematic view of C in the figure;

[0030] Figure 12 It is a sectional view structural schematic view of a water receiving bucket part in a time sequence precipitation isotope sample collection device of the present application.

[0031] The main element symbol explanations are as follows:

[0032] 1, bottom plate; 11, drain hole;

[0033] 2, fixed seat; 21, adapter column;

[0034] 22. Rotating plate; 221. Adapter slot; 222. Rotating column; 223. Knob; 224. Wiring slot; 225. Pull cord;

[0035] 23. Rotating block; 231. Torsion spring; 232. Suction cup; 233. Collection bottle; 234. Counterweight ball; 235. Winding roller;

[0036] 24. Fixing rod; 241. Support ring;

[0037] 3. Fixed cover; 31. Water receiving trough; 32. Tilt into the water trough;

[0038] 33. Vertical slot; 331. Inverted L-shaped rod; 332. Annular protrusion; 333. Tension spring;

[0039] 4. Ratchet; 41. Rocker; 42. First stop block; 43. Second stop block; 44. Driving pawl; 45. First support; 46. Second support; 47. Braking pawl; 48. Shrapnel; 49. Return spring;

[0040] 5. Positioning rod; 50. Driving rod;

[0041] 51. Water collecting bucket; 511. Fixed wedge; 512. Vertical rod; 513. Fixed plate; 514. Movable plug; 515. Return spring;

[0042] 52. Positioning seat; 53. Compression spring;

[0043] 6. Fixed pipe; 61. Top column;

[0044] 7. Connecting seat. DETAILED DESCRIPTION

[0045] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that in the drawings or descriptions, similar or identical parts are numbered the same. Implementations not shown or described in the drawings are forms known to those of ordinary skill in the art. In addition, directional terms mentioned in the embodiments, such as "upper," "lower," "top," "bottom," "left," "right," "front," and "back," are merely references to the directions in the drawings and are not intended to limit the scope of protection of the present invention.

[0046] like Figures 1 to 12As shown, a time-series precipitation isotope sample collection device of the present invention includes a base plate 1, a fixed seat 2 is fixedly installed on the base plate 1, an adapter column 21 is rotatably installed on the fixed seat 2, a rotating disk 22 is provided on the adapter column 21, a plurality of mounting grooves are evenly opened on the rotating disk 22 at annular intervals, a rotating block 23 is provided in each of the plurality of mounting grooves, a fixed shaft is provided on the rotating block 23, a groove adapted to the fixed shaft is provided in the mounting groove, the rotating block 23 is rotatably installed in the mounting groove through the fixed shaft, a torsion spring 231 is provided between the fixed shaft and the wall of the mounting groove, and when no other external force is applied, the rotating block 23 is rotated in the mounting groove. 3 will be in a horizontal state, and the suction cup 232 side of the rotating block 23 is on the same side as the bottom of the rotating disk 22. A suction cup 232 is fixedly installed on the rotating block 23, and a collection bottle 233 is provided on the suction cup 232. Two limiting columns are fixedly installed on the upper end of the inner wall of the collection bottle 233. A counterweight ball 234 is movably installed on the two limiting columns. The ball diameter of the counterweight ball 234 is larger than the diameter of the bottle mouth of the collection bottle 233, and the outer side is covered with a rubber layer. When the bottle mouth of the collection bottle 233 is facing upward, the counterweight ball 234 is away from the bottle mouth, and rainwater can flow into the collection bottle 233 through the bottle mouth. When the bottle mouth of the collection bottle 233 is facing downward, the counterweight ball 234 is away from the bottle mouth. When the water is collected, the counterweight ball 234 blocks the bottle mouth under the action of gravity and fits tightly against the inner wall of the collection bottle 233, so that the collection bottle 233 is in a sealed state to prevent the rainwater in the collection bottle 233 from evaporating. A fixing rod 24 is fixedly installed on the fixing seat 2, and a support ring 241 with an opening is fixedly installed on the upper end of the fixing rod 24. The upper end of the support ring 241 is close to the lower end of the rotating disk 22. A fixing cover 3 is provided on the bottom plate 1 at the outer cover of the fixing seat 2 and the rotating disk 22. The fixing cover 3 is provided with a water receiving trough 31 and an inclined water inlet trough 32 connected to the water receiving trough 31. The water receiving trough 31 A tipping bucket rain gauge is provided above. While the tipping bucket rain gauge is detecting the rainfall, the rainwater discharged by it can be received by the water receiving trough 31, which is convenient for collecting rainwater. The lower end notch of the inclined water trough 32 is located directly above the bottle mouth of one of the collection bottles 233 on the rotating disk 22, and the lower end notch of the inclined water trough 32 is staggered with the opening of the support ring 241. A toggle mechanism that can drive the adapter column 21 to rotate at a set angle is provided on the fixed seat 2. When the adapter column 21 rotates at a set angle, the collection bottles 233 on the rotating disk 22 will rotate in sequence to directly below the notch of the inclined water trough 32.

[0047] The toggle mechanism includes a ratchet 4, a rocker 41, a first limit block 42, a second limit block 43, a driving pawl 44, a first pillar 45, a second pillar 46, a braking pawl 47 and a spring 48. The ratchet 4 is fixedly mounted on the adapter column 21, the rocker 41 is rotatably mounted on the adapter column 21 and is located below the ratchet 4, the first limit block 42 and the second limit block 43 are fixedly mounted on the fixed seat 2, the rocker 41 is located between the first limit block 42 and the second limit block 43, a return spring 49 is fixedly mounted between the second limit block 43 and the rocker 41, the driving pawl 44 is rotatably mounted on the rocker 41, and a return torsion spring is provided at the transition between the driving pawl 44 and the rocker 41, the first pillar 45 and the second pillar 46 are fixedly mounted on the fixed seat 2, the braking pawl 47 is rotatably mounted on the first pillar 45, the spring 48 is fixedly mounted between the first pillar 45 and the braking pawl 47, and the driving pawl 44 and the braking pawl 47 are adapted to the ratchet 4.

[0048] Two positioning rods 5 and a driving rod 50 are provided on the bottom plate 1. A driving motor and a battery are provided at the lower end of the bottom plate 1. The output shaft of the driving motor is fixedly connected to the driving rod 50. A water collecting bucket 51 is provided on the driving rod 50 and the two positioning rods 5. A rain sensor and a controller are provided in the water collecting bucket 51. The controller, the rain sensor, the battery and the driving motor are connected by telecommunication. When the rain sensor detects rain, the controller can control the driving motor to work periodically to collect samples at regular intervals. An opening adapted to the water collecting bucket 51 is provided on the fixed cover 3. The water collecting bucket 51 is provided with a A positioning seat 52 and a mounting seat are fixedly installed on the upper side, which are respectively adapted to the positioning rod 5 and the driving rod 50. The driving rod 50 is threadedly connected to the mounting seat. The upper ends of the two positioning rods 5 are fixedly installed with limited end heads. Compression springs 53 are sleeved on the two positioning rods 5. The upper ends of the compression springs 53 are connected to the lower ends of the positioning seats 52. A fixed wedge 511 adapted to the rocker 41 is fixedly installed on the lower end of the water receiving bucket 51. A water leakage hole is opened at the bottom of the water receiving bucket 51. A blocking mechanism is provided at the bottom of the inner wall of the water receiving bucket 51 at the water leakage hole, and a drain piece used in conjunction with the blocking mechanism is provided on the bottom plate 1.

[0049] The blocking mechanism includes two vertical rods 512, a fixed plate 513, a movable plug 514 and a return spring 515. The two vertical rods 512 are fixedly mounted on the bottom of the inner wall of the water receiving bucket 51, the fixed plate 513 is fixedly mounted on the upper end of the vertical rods 512, the movable plug 514 is movably mounted below the fixed plate 513, and the movable plug 514 is movably mounted between the two vertical rods 512. The movable plug 514 is adapted to the water leakage hole. When the lower end of the movable plug 514 is subjected to force, the movable plug 514 squeezes the return spring 515 upward to put the water leakage hole in a conductive state. When the force is released, the movable plug 514 will be reset under the force of the return spring 515 due to the limiting action of the two vertical rods 512, and continue to block the water leakage hole.

[0050] The drainage component includes a fixed tube 6 and a top column 61. The fixed tube 6 is fixedly installed on the upper end of the base plate 1. A fixing frame is fixedly installed on the upper end of the fixed tube 6. The top column 61 is fixedly installed on the fixing frame. The top column 61 of the fixed tube 6 is located directly below the leakage hole. A plurality of drainage holes 11 are provided on the base plate 1. A magnetic block is fixedly installed on the upper end of the fixed tube 6. A magnetic patch that is magnetically attracted to the magnetic block is fixedly installed on the bottom of the water receiving bucket 51. When the bottom of the water receiving bucket 51 contacts the upper end of the fixed tube 6, the magnetic block generates a magnetic adsorption force on the magnetic patch, so that the water receiving bucket 51 remains in a drainage state until the weight and magnetic force at the water receiving bucket 51 are less than the elastic force generated by the compression spring 53. At this time, the water receiving bucket 51 will return to its initial state to facilitate subsequent collection work.

[0051] A vertical slot 33 that cuts off the inclined water trough 32 is provided on the fixed cover 3, and an inverted L-shaped rod 331 is movably inserted into the vertical slot 33. An annular protrusion 332 is fixedly installed on the inverted L-shaped rod 331. A tension spring 333 is fixedly installed on the inverted L-shaped rod 331 between the annular protrusion 332 and the inner wall of the fixed cover 3. The lower end of the inverted L-shaped rod 331 is located below the water receiving bucket 51.

[0052] A transfer groove 221 is provided at the upper end of the rotating disk 22, and a rotating column 222 is rotatably installed in the transfer groove 221. The upper end of the rotating column 222 passes through the upper end of the rotating disk 22, and a knob 223 is fixedly installed on one end of the rotating column 222. A wiring groove 224 is provided inside the rotating disk 22 between the transfer groove 221 and the groove, and a pull rope 225 is provided in the wiring groove 224. A winding roller 235 is fixedly installed on the fixed shaft, and a cavity connected to the groove is provided on the rotating disk 22. The winding roller 235 is rotatably installed in the cavity, and the two ends of the pull rope 225 are fixedly connected to the winding roller 235 and the rotating column 222 respectively.

[0053] A connecting seat 7 is fixedly installed at the lower end of the rotating disk 22. A limiting slot 71 is provided at the lower end of the connecting seat 7. The adapter column 21 is movably inserted into the limiting slot 71, and the connecting seat 7 is movably inserted on the adapter column 21, which facilitates the disassembly and assembly of the rotating disk 22 as a whole and is more convenient to use.

[0054] The method of use of the present invention is as follows:

[0055] During use, the collection bottles 233 are placed one by one on the suction cups 232 of the rotating block 23, with the mouths of the collection bottles 233 facing upwards. The fixed cover 3 is then placed on the bottom plate 1. The water receiving bucket 51 passes through the opening of the fixed cover 3, and the lower end of the inverted L-shaped rod 331 is located below the water receiving bucket 51. The lower end notch of the rod 331, which is tilted into the water tank 32, is located directly above the mouth of one of the collection bottles 233 on the rotating disk 22.

[0056] In rainy weather, the water receiving bucket 51 and the water receiving trough 31 receive rainwater. When the rainwater sensor in the water receiving bucket 51 detects rainwater, the driving motor drives the driving rod 50 to rotate. The water receiving bucket 51 moves downward under the limiting action of the positioning rod 51 to squeeze the compression spring 53. When the water receiving bucket 51 moves downward, the inverted L-shaped rod 331 is pushed by the water receiving bucket 51. The annular protrusion 332 on the inverted L-shaped rod 331 pulls the tension spring 333 to make it produce a tensioned state. The inverted L-shaped rod 331 releases the blocking effect on the inclined water inlet trough 32. Under the action of gravity, the rainwater in the water receiving trough 31 flows into the collection bottle 233 through the inclined water inlet trough 32.

[0057] When the water receiving bucket 51 moves downward and contacts the upper end of the fixed tube 6, the top column 61 pushes the movable plug 514 upward, so that the water leakage hole is in a conductive state. The magnetic block on the fixed tube 6 generates a magnetic attraction force on the magnetic patch, so that the water receiving bucket 51 remains in the water-draining state until the weight and magnetic force of the water receiving bucket 51 are less than the elastic force generated by the compression spring 53. At this time, the water receiving bucket 51 and the inverted L-shaped rod 331 will return to their initial state, thus resetting and completing the subsequent collection work.

[0058] When the water collecting bucket 51 moves up and down, the fixed wedge 511 drives the rocker 41 to rotate, and the driving pawl 44 is stuck in the adjacent tooth groove on the ratchet 4. When the water collecting bucket 51 and the fixed wedge 511 move upward and release the contact relationship with the rocker 41, the return spring 49 drives the rocker 41 to return to the initial state, and drives the ratchet 4 and the adapter column 21 to rotate by driving the pawl 44, and the rotating disk 22 rotates accordingly, and the collection bottles 233 on the rotating disk 22 move in turn to tilt into the water. Below the lower notch of the groove 32, the collection bottle 233 receiving rainwater is staggered with the lower notch of the inclined water inlet groove 32. The rotating block 23 here rotates to the opening of the support ring 241. Under the force of the torsion spring 231, the rotating block 23 and the collection bottle 233 adsorbed on the suction cup 232 rotate, resulting in a bottle mouth downward state. The counterweight ball 234 blocks the bottle mouth of the collection bottle 233 under the action of gravity to seal the collection bottle 233 and prevent the rainwater in the collection bottle 233 from evaporating.

[0059] The above describes in detail the time-series precipitation isotope sampling device provided by the present invention. The description of the specific embodiments is intended only to facilitate understanding of the present invention's method and core concepts. It should be noted that those skilled in the art will appreciate that various improvements and modifications may be made to the present invention without departing from the principles of the present invention, and such improvements and modifications fall within the scope of protection of the claims.

Claims

1. A time series precipitation isotope sample collection device, comprising a bottom plate (1), characterized in that: A fixing seat (2) is fixedly mounted on the bottom plate (1), a transfer column (21) is rotatably mounted on the fixing seat (2), a rotating disk (22) is provided on the transfer column (21), a plurality of mounting grooves are evenly arranged at annular intervals on the rotating disk (22), a plurality of mounting grooves are each provided with a rotating block (23), a fixed shaft is provided on the rotating block (23), a groove adapted to the fixed shaft is provided in the mounting groove, and the rotating block (23) is rotatably mounted on the mounting plate through the fixed shaft. In the groove, a torsion spring (231) is provided between the fixed shaft and the wall of the installation groove. A suction cup (232) is fixedly installed on the rotating block (23). A collection bottle (233) is provided on the suction cup (232). Two limiting columns are fixedly installed on the upper end of the inner wall of the collection bottle (233). A counterweight ball (234) is movably installed on the two limiting columns. The ball diameter of the counterweight ball (234) is larger than the diameter of the bottle mouth of the collection bottle (233), and the outer side is covered with a rubber layer. The fixing seat (2) A fixing rod (24) is fixedly installed on the upper end of the fixing rod (24), and a support ring (241) with an opening is fixedly installed on the upper end of the fixing rod (24). The upper end of the support ring (241) is close to the lower end of the rotating disk (22). A fixing cover (3) is provided on the bottom plate (1) between the fixing seat (2) and the outer cover of the rotating disk (22). The fixing cover (3) is provided with a water receiving groove (31) and an inclined water inlet groove (32) connected to the water receiving groove (31). The lower end notch of the (32) is located just above the bottle opening of one of the collection bottles (233) on the rotating disk (22), and the lower end notch of the inclined water trough (32) is staggered with the opening of the support ring (241). The fixing seat (2) is provided with a toggle mechanism that can drive the adapter column (21) to rotate at a set angle. When the adapter column (21) rotates at a set angle, the collection bottles (233) on the rotating disk (22) will rotate to just below the notch of the inclined water trough (32) in sequence.

2. The time-series precipitation isotope sample collection device according to claim 1, characterized in that: The toggle mechanism comprises a ratchet (4), a rocker (41), a first limit block (42), a second limit block (43), a driving pawl (44), a first pillar (45), a second pillar (46), a braking pawl (47) and a spring (48); the ratchet (4) is fixedly mounted on the transfer column (21); the rocker (41) is rotatably mounted on the transfer column (21) and is located below the ratchet (4); the first limit block (42) and the second limit block (43) are fixedly mounted on the fixing seat (2); and the rocker (41) is located between the first limit block (42) and the second limit block (43). A return spring (49) is fixedly installed between the second limit block (43) and the rocker (41), the driving pawl (44) is rotatably installed on the rocker (41), a return torsion spring is provided at the junction of the driving pawl (44) and the rocker (41), the first pillar (45) and the second pillar (46) are fixedly installed on the fixed seat (2), the braking pawl (47) is rotatably installed on the first pillar (45), the spring piece (48) is fixedly installed between the first pillar (45) and the braking pawl (47), and the driving pawl (44) and the braking pawl (47) are adapted to the ratchet (4).

3. The time-series precipitation isotope sample collection device according to claim 2, characterized in that: Two positioning rods (5) and a driving rod (50) are provided on the base plate (1). A driving motor and a storage battery are provided at the lower end of the base plate (1). The output shaft of the driving motor is fixedly connected to the driving rod (50). A water receiving bucket (51) is provided on the driving rod (50) and the two positioning rods (5). A rain sensor and a controller are provided in the water receiving bucket (51). The controller, the rain sensor, the storage battery and the driving motor are connected by telecommunication. An opening adapted to the water receiving bucket (51) is provided on the fixed cover (3). Fixed mounting holes adapted to the positioning rod (5) and the driving rod (50) are fixedly installed on the water receiving bucket (51). The positioning seat (52) and the mounting seat are provided, and the driving rod (50) is threadedly connected to the mounting seat. The upper ends of the two positioning rods (5) are fixedly installed with limited end heads. The two positioning rods (5) are both sleeved with compression springs (53). The upper ends of the compression springs (53) are connected to the lower ends of the positioning seat (52). The lower end of the water receiving bucket (51) is fixedly installed with a fixed wedge (511) adapted to the rocker (41). A water leakage hole is opened at the bottom of the water receiving bucket (51). A blocking mechanism is provided at the bottom of the inner wall of the water receiving bucket (51) at the water leakage hole. A water drain piece used in conjunction with the blocking mechanism is provided on the bottom plate (1).

4. The time-series precipitation isotope sample collection device according to claim 3, characterized in that: The blocking mechanism comprises two vertical rods (512), a fixed plate (513), a movable plug (514) and a reset spring (515). The two vertical rods (512) are fixedly mounted on the bottom of the inner wall of the water receiving bucket (51). The fixed plate (513) is fixedly mounted on the upper end of the vertical rods (512). The movable plug (514) is movably mounted below the fixed plate (513). The movable plug (514) is movably mounted between the two vertical rods (512). The movable plug (514) is adapted to the water leakage hole.

5. The time-series precipitation isotope sample collection device according to claim 3, characterized in that: The drain member comprises a fixed pipe (6) and a top column (61); the fixed pipe (6) is fixedly mounted on the upper end of the base plate (1); a fixing frame is fixedly mounted on the upper end of the fixed pipe (6); the top column (61) is fixedly mounted on the fixing frame; the top column (61) of the fixed pipe (6) is located directly below the drain hole; and a plurality of drain holes (11) are provided on the base plate (1).

6. The time-series precipitation isotope sample collection device according to claim 3, characterized in that: A magnetic block is fixedly mounted on the upper end of the fixed tube (6), and a magnetic patch that is magnetically attracted to the magnetic block is fixedly mounted on the bottom of the water receiving bucket (51).

7. The time-series precipitation isotope sample collection device according to claim 3, characterized in that: The fixed cover (3) is provided with a vertical slot (33) that cuts off the inclined water trough (32); an inverted L-shaped insertion rod (331) is movably inserted into the vertical slot (33); an annular protrusion (332) is fixedly mounted on the inverted L-shaped insertion rod (331); a tension spring (333) is fixedly mounted on the inverted L-shaped insertion rod (331) between the annular protrusion (332) and the inner wall of the fixed cover (3); and the lower end of the inverted L-shaped insertion rod (331) is located below the water receiving bucket (51).

8. The time-series precipitation isotope sample collection device according to claim 1, characterized in that: The upper end of the rotating disk (22) is provided with a transfer groove (221), a rotating column (222) is rotatably installed in the transfer groove (221), the upper end of the rotating column (222) passes through the upper end of the rotating disk (22), and a knob (223) is fixedly installed on one end of the rotating column (222) passing through the rotating disk (22), a wiring groove (224) is provided between the transfer groove (221) and the groove inside the rotating disk (22), a pull rope (225) is provided in the wiring groove (224), a winding roller (235) is fixedly installed on the fixed shaft, a cavity connected to the groove is provided on the rotating disk (22), the winding roller (235) is rotatably installed in the cavity, and the two ends of the pull rope (225) are respectively fixedly connected to the winding roller (235) and the rotating column (222).

9. The time-series precipitation isotope sample collection device according to claim 1, characterized in that: A connecting seat (7) is fixedly mounted on the lower end of the rotating disk (22), a limiting slot is provided on the lower end of the connecting seat (7), and the adapter column (21) is movably inserted into the limiting slot.

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