A water sampling device for water ecological monitoring

Abstract

The present invention relates to the technical field of water ecology monitoring, and discloses a water sampling device for water ecology monitoring, including a floating water tank floating on a designated water surface area, a sample collection tube, an extraction component, a movable toothed disc, a plurality of storage units, a transmission component, a plurality of cleaning units, and a stepping motor, wherein the plurality of cleaning units are installed one by one on the plurality of collection positions of the sample collection tube, and the plurality of cleaning units are all connected to the transmission component in a transmission manner, and the transmission component can control the plurality of cleaning units to synchronously clean the plurality of collection positions of the sample collection tube. The transmission component of the present invention is arranged to utilize the rotation of the movable toothed disc as a power, so that the transmission component can synchronously drive the plurality of cleaning units to roll and brush the collection positions on all the tube sections, effectively reducing the influence of impurities accumulated at the collection positions on the extraction of liquid samples.

Description

Technical Field

[0001] The invention relates to the technical field of water ecology monitoring, and in particular to a water body sampling device used for water ecology monitoring. Background Art

[0002] In the prior art, for example, the patent document with publication number CN113092700A proposes an integrated self-cleaning water ecological environment Internet of Things monitoring terminal and monitoring method. Under the action of the cleaning component, the water quality sensor is driven to rotate and brush the surface stains during the upward movement. Through the rotation of the cylinder, under the action of the cleaning component, the stains on the surface of the water quality sensor are sprayed and cleaned. Water of different depths can be sampled.

[0003] However, the existing technology still has limitations in actual use. When long-term monitoring of water bodies is required, in order to ensure the accuracy of monitoring parameters, it is generally necessary to extract liquid samples at different depths of the water body. The above-mentioned technical solution can only use a single sampling structure that can adjust the depth in the water body for sampling. The operation is relatively cumbersome and it is difficult to ensure that the sample is at a specified depth. In addition, the above-mentioned technical solution is to clean the transmission by controlling the lifting of the transmission. For structures immersed in natural water bodies for a long time, various pollutants are easily attached. More complex structures are easily attached to pollutants when exposed to water bodies for a long time, which will cause inconvenience in subsequent use and even damage to the equipment. Summary of the invention

[0004] The purpose of the present invention is to provide a water sampling device for water ecological monitoring to solve the problems in the prior art that it is difficult to quickly extract liquid samples of various depths and that the liquid sampling structure is easily attached to pollutants in the water.

[0005] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

[0006] A water sampling device for water ecological monitoring, comprising a floating water tank floating on a designated water surface area, and further comprising:

[0007] A sample collection tube, which is arranged at the bottom of the floating water tank and is used to extend below the water body, and is used to form multiple collection positions at different water depths;

[0008] An extraction component, which is arranged inside the floating water tank and connected to the top of the sample collection tube, and is used to extract liquid samples at different water depths through the sample collection tube;

[0009] A movable gear plate rotatably connected to the interior of the float tank;

[0010] A plurality of storage units, which are all arranged on the movable toothed disc and evenly distributed around the center of the movable toothed disc, and are used to independently store a plurality of liquid samples extracted by the extraction component;

[0011] A transmission assembly, which is arranged inside the floating water tank and is drivingly connected to the movable gear disc;

[0012] A plurality of cleaning units, which are mounted one by one on the plurality of collecting positions of the sample collection tube, and the plurality of cleaning units are all in transmission connection with the transmission assembly, and the transmission assembly can control the plurality of cleaning units to synchronously clean the plurality of collecting positions of the sample collection tube;

[0013] A stepper motor is installed inside the floating water tank and is used to drive the movable gear disc to rotate quantitatively.

[0014] As a preferred solution of the present invention, the sample collection tube includes a plurality of tube sections connected end to end, wherein the tube section at the end is connected to a connecting seat, the connecting seat is fixedly connected to the bottom end of the floating water tank, and the tube section at the front end is provided with a bearing seat for rotatably connecting to the transmission assembly;

[0015] The inner side of each pipe section is provided with a first spacer and a second spacer distributed in parallel, the first spacer and the second spacer cooperate with the inner wall of the pipe section to form a closed space, and the outer side of each pipe section is provided with an outer sealing tube for connecting the connecting seat, one end of the outer sealing tube is connected to the inside of the floating water tank, and the other end of the outer sealing tube is connected to the closed space in the corresponding pipe section;

[0016] Each of the pipe sections is provided with two collection holes connected to the interior thereof, the two collection holes are symmetrically distributed about the central axis of the pipe section, and the two collection holes are located below the corresponding first spacer on the pipe section.

[0017] As a preferred solution of the present invention, the transmission assembly includes a rotating shaft located on the central axes of the multiple pipe sections, one end of the rotating shaft is rotatably connected to the bearing seat, the other end of the rotating shaft passes through the connecting seat and extends to the interior of the float tank and is sleeved with a transmission gear plate, the outer side of the transmission gear plate is meshed with the movable gear plate through evenly distributed tooth grooves, and the rotating shaft is provided with a plurality of annular outer grooves corresponding to the number of the pipe sections, and each of the annular outer grooves is located on the central axis of the two collection holes corresponding to the pipe section.

[0018] As a preferred solution of the present invention, the cleaning unit comprises a transmission sleeve and a transmission ring, wherein the transmission sleeve is fixedly sleeved on the outside of the annular outer groove, and the transmission sleeve is located between the two collection holes corresponding to the pipe section, and the transmission ring is coaxially installed on the inner circumferential surface of the corresponding pipe section, and the transmission ring is located below the two collection holes on the corresponding pipe section;

[0019] The transmission sleeve is rotatably connected to an energy storage shaft assembly that passes through the transmission sleeve transversely, and the transmission sleeve on the energy storage shaft assembly is connected to two cylinder brushes, and the two cylinder brushes are respectively located on both sides of the transmission sleeve;

[0020] When the transmission sleeve rotates, one end of the energy storage shaft assembly can engage with the transmission ring to enable the energy storage shaft assembly to rotate on the transmission sleeve; when the energy storage shaft assembly rotates on the transmission sleeve, the two cylindrical brushes can roll and brush the lower surface of the first spacer in the corresponding pipe section.

[0021] As a preferred solution of the present invention, the energy storage shaft assembly includes a driven shaft that transversely penetrates the transmission sleeve, a coil spring is fixedly sleeved on the driven shaft, the coil spring is located inside the rotating shaft and fixedly connected to the inner wall of the rotating shaft, one end of the energy storage shaft assembly is fixedly connected to a transmission gear, and the other end of the energy storage shaft assembly is rotatably connected to a driven gear, and the outer circumferential surfaces of the transmission gear and the driven gear are both provided with evenly distributed tooth grooves;

[0022] The driven shaft rotates so that the transmission gear and the driven gear coincide with the central axes of the two collection holes respectively, and the sizes of the transmission gear and the driven gear are both smaller than the size of the collection holes.

[0023] As a preferred solution of the present invention, the transmission ring is provided with two arc-shaped racks which are distributed correspondingly with respect to the central axis of the transmission ring, one side of the two arc-shaped racks is in contact with the inner wall of the pipe section, and both ends of the two arc-shaped racks extend to the side walls of the corresponding two collection holes respectively, and the top ends of the two arc-shaped racks are meshed with the transmission gear and the driven gear through evenly distributed tooth grooves.

[0024] As a preferred solution of the present invention, the transmission sleeve is further provided with two laterally distributed connecting rods, the two connecting rods are located between the two corresponding energy storage shaft assemblies, the front ends of the two connecting rods are provided with hole blocking plates, the cross-section of the hole blocking plates is a Z-shaped structure, and the rotation of the transmission sleeve can enable the two hole blocking plates to cover the two corresponding collection holes.

[0025] As a preferred solution of the present invention, a first through hole is opened at the center of the first diaphragm, the first through hole is used for the rotation shaft to pass through, a right-angle joint for connecting the upper and lower spaces of the first diaphragm is installed on the first diaphragm, one end of the right-angle joint located above the first through hole is connected to a hose, and one end of the hose passes through the corresponding outer sealing tube and is connected to the extraction component;

[0026] A second through hole is formed at the center of the second spacer, and the second through hole is used for the rotating shaft to pass through.

[0027] As a preferred solution of the present invention, the extraction assembly includes a fixed frame fixedly installed inside the float tank, a lifting frame is longitudinally slidably connected to the fixed frame, an electric rod for controlling the lifting of the lifting frame is installed at the bottom end of the fixed frame, and a plurality of water pumps corresponding to the number of pipe sections are installed on the lifting frame, the input end of each water pump is connected to the hose on the corresponding pipe section, and the output end of the water pump is connected to an output elbow, and the output ports of the plurality of output elbows are all facing downward.

[0028] As a preferred solution of the present invention, the storage unit includes a test tube disc installed on the movable toothed disc, on which a plurality of test tubes evenly distributed around the center of the test tube disc are installed, a rubber film for covering the test tube mouth is provided at the top of the test tube, a cross cut is provided at the center of the rubber film, and the rotation of the movable toothed disc can make the plurality of test tubes on any test tube disc be located directly below the plurality of output elbows respectively.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] (1) The present invention extends a plurality of pipe sections connected end to end underwater, so that liquid samples of different water depths can be sucked out by an extraction assembly. A stepper motor controls a movable gear disk to rotate to a storage unit nearest to the discharge port of the extraction assembly, so that the storage unit can independently store a plurality of liquid samples. After that, the movable gear disk can be controlled to rotate quantitatively again, so that an adjacent empty storage unit can be moved to the discharge position of the extraction assembly, thereby automatically and regularly extracting and storing liquid samples of multiple water depths.

[0031] (2) The transmission assembly of the present invention utilizes the rotation of the movable toothed disc as power, so that the transmission assembly can synchronously drive multiple cleaning units to roll and brush the collection positions on all pipe segments (i.e., the space between two collection holes on the pipe segment for external liquid to flow through), thereby effectively reducing the impact of impurities accumulated at the collection positions on the extracted liquid samples and improving the accuracy of various parameters of the extracted liquid level. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0033] Figure 1 It is a schematic diagram of the connection between a partial cross section of the sample collection tube and the cleaning unit of the present invention.

[0034] Figure 2 It is a front view of the whole device of the present invention.

[0035] Figure 3 It is a top view of the interior of the floating water tank of the present invention.

[0036] Figure 4 For the present invention Figure 1 Schematic diagram of the connection of the cleaning unit is removed.

[0037] Figure 5 It is a top view of the cleaning unit of the present invention.

[0038] Figure 6 It is a top view of the connection between the energy storage shaft assembly and the transmission sleeve of the present invention.

[0039] Figure 7 It is a connection schematic diagram of the transmission ring of the present invention.

[0040] Figure 8 It is a structural schematic diagram of the storage unit of the present invention.

[0041] Fig. 9 It is a schematic diagram of the structure of the extraction component of the present invention.

[0042] Reference numerals:

[0043] 1. Floating water tank; 2. Sample collection tube; 3. Extraction assembly; 4. Movable gear plate; 5. Storage unit; 6. Transmission assembly; 7. Cleaning unit; 8. Stepper motor;

[0044] 21. pipe joint; 22. connecting seat; 23. bearing seat; 24. first spacer; 25. second spacer; 26. collection hole; 27. outer sealing tube;

[0045] 241, first through hole; 242, right angle joint; 243, hose; 251, second through hole;

[0046] 31. Fixed frame; 32. Lifting frame; 33. Electric rod; 34. Water pump; 35. Output elbow;

[0047] 51. test tube tray; 52. test tube; 53. rubber membrane; 54. cross cut;

[0048] 61. rotating shaft; 62. transmission gear plate;

[0049] 611, annular outer groove;

[0050] 71. Transmission sleeve; 72. Transmission ring; 73. Energy storage shaft assembly; 74. Cylinder brush; 75. Connecting rod; 76. Hole blocking piece;

[0051] 721, arc-shaped rack; 731, driven shaft; 732, coil spring; 733, transmission gear; 734, driven gear. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] The present application will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0054] Embodiment 1

[0055] Combine the following Figures 1 to 9 As shown, an embodiment of the present invention provides a water sampling device for water ecological monitoring, including a floating water tank 1 floating on a designated water surface area, and also including:

[0056] A sample collection tube 2, which is arranged at the bottom of the floating water tank 1 and is used to extend below the water body, and is used to form multiple collection positions at different water depths;

[0057] An extraction component 3, which is arranged inside the floating water tank 1 and connected to the top of the sample collection tube 2, and is used to extract liquid samples at different water depths through the sample collection tube 2;

[0058] A movable toothed disc 4, which is rotatably connected to the interior of the floating water tank 1;

[0059] A plurality of storage units 5, which are all arranged on the movable toothed disc 4 and evenly distributed around the center of the movable toothed disc 4, and are used to independently store a plurality of liquid samples extracted by the extraction component 3;

[0060] A transmission assembly 6, which is arranged inside the floating water tank 1 and is in transmission connection with the movable gear plate 4;

[0061] A plurality of cleaning units 7, which are mounted one by one on the plurality of collecting positions of the sample collection tube 2, and the plurality of cleaning units 7 are all connected to the transmission assembly 6 in a transmission manner, and the transmission assembly 6 can control the plurality of cleaning units 7 to synchronously clean the plurality of collecting positions of the sample collection tube 2;

[0062] The stepper motor 8 is installed inside the floating water tank 1 and is used to drive the movable gear plate 4 to rotate quantitatively.

[0063] In this embodiment, the floating tank 1 is set to always float in a designated water surface area, and various electrical devices installed inside it that require electrical energy to drive are powered by external wires or external solar energy storage devices. This is a conventional technical means in this field and will not be elaborated on again.

[0064] The present invention extends multiple pipe sections 21 that are butt-jointed end to end underwater, so that liquid samples of different water depths can be sucked out separately through the extraction component 3. The stepper motor 8 controls the movable toothed disc 4 to rotate to the nearest storage unit 5 to the discharge port of the extraction component 3, so that the storage unit 5 can independently store multiple liquid samples. Thereafter, the movable toothed disc 4 can be controlled to rotate quantitatively again, so that the adjacent empty storage unit 5 can be moved to the discharge position of the extraction component 3, so that liquid samples of multiple water depths can be automatically and regularly extracted and stored.

[0065] The transmission assembly 6 of the present invention utilizes the rotation of the movable toothed disc 4 as power, so that the transmission assembly 6 can synchronously drive multiple cleaning units 7 to roll and brush all the collection positions on the pipe segments 21 (i.e., the space between the two collection holes 26 on the pipe segments 21 for external liquid to flow through), thereby effectively reducing the influence of impurities accumulated at the collection positions on the extracted liquid samples and improving the accuracy of various parameters of the extracted liquid level.

[0066] The sample collection tube 2 includes a plurality of tube sections 21 connected end to end, wherein the tube section 21 at the end is connected to a connection seat 22, the connection seat 22 is fixedly connected to the bottom end of the floating water tank 1, and the tube section 21 at the front end is provided with a bearing seat 23 for rotating and connecting the transmission assembly 6;

[0067] The inner side of each pipe section 21 is provided with a first spacer 24 and a second spacer 25 which are distributed in parallel. The first spacer 24 and the second spacer 25 cooperate with the inner wall of the pipe section 21 to form a closed space. The outer side of each pipe section 21 is provided with an outer sealing tube 27 for connecting the connecting seat 22. One end of the outer sealing tube 27 is connected to the inside of the floating water tank 1, and the other end of the outer sealing tube 27 is connected to the closed space in the corresponding pipe section 21.

[0068] Each pipe segment 21 is provided with two collection holes 26 communicating with the interior thereof. The two collection holes 26 are symmetrically distributed about the central axis of the pipe segment 21 , and the two collection holes 26 are located below the corresponding first spacer 24 on the pipe segment 21 .

[0069] Specifically, a plurality of pipe segments 21 butted end to end are used to extend downwardly toward the water body, and each pipe segment 21 is provided with a collection position for collecting liquid samples. Therefore, a corresponding number of pipe segments 21 can be butted according to the number of required water depths for collection. It is necessary to ensure that the space between the first diaphragm 24 and the second diaphragm 25 in each pipe segment 21 is not flooded, and when liquid samples need to be collected, it is necessary to ensure that the space below the first diaphragm 24 in the pipe segment 21 allows liquid to circulate by self-heating. In order to prevent excess air in the plurality of pipe segments 21 from causing the sample collection tube 2 to float or tilt as a whole, the space above the second diaphragm 25 in the pipe segment 21 can be set to be connected to the outside world, thereby reducing the amount of air in the space in the pipe segment 21.

[0070] Among them, the transmission assembly 6 includes a rotating shaft 61 located on the central axis of multiple pipe sections 21, one end of the rotating shaft 61 is rotatably connected to the bearing seat 23, the other end of the rotating shaft 61 passes through the connecting seat 22 and extends to the interior of the floating tank 1 and is sleeved with a transmission gear plate 62, the outer side of the transmission gear plate 62 is meshed with the movable gear plate 4 through evenly distributed tooth grooves, and a plurality of annular outer grooves 611 corresponding to the number of pipe sections 21 are opened on the rotating shaft 61, and each annular outer groove 611 is located on the central axis of the two collection holes 26 of the corresponding pipe section 21.

[0071] A first through hole 241 is formed at the center of the first diaphragm 24, and the first through hole 241 is used for the rotation shaft 61 to pass through. A right-angle joint 242 is installed on the first diaphragm 24 to connect the upper and lower spaces of the first diaphragm 24. One end of the right-angle joint 242 located above the first through hole 241 is connected to a hose 243, and one end of the hose 243 passes through the corresponding outer sealing tube 27 and is connected to the extraction component 3.

[0072] A second through hole 251 is formed at the center of the second spacer 25 , and the second through hole 251 is used for the rotation shaft 61 to pass through.

[0073] Specifically, the length of the rotating shaft 61 must be ensured to be longer than multiple pipe sections 21 that are connected end to end. Since the rotating shaft 61 needs to pass through the first spacers 24 and the second spacers 25 of the multiple pipe sections 21, the first through hole 241 on the first spacer 24 and the second through hole 251 on the second spacer 25 for the rotating shaft 61 to move through need to be provided with rubber rings for enhancing sealing to ensure the probability of water seepage in the first through hole 241 and the second through hole 251 when the rotating shaft 61 rotates. Multiple annular outer grooves 611 are used to locate the height positions of multiple cleaning units 7.

[0074] Furthermore, since the multiple cleaning units 7 that are sleeved together will rotate synchronously when the rotating shaft 61 rotates, the hose 243 used to suck liquid on each pipe section 21 cannot enter the float tank 1 from the multiple pipe sections 21 that are connected end to end. The space between the first spacer 24 and the second spacer 25 in the pipe section 21 can only be connected to the interior of the float tank 1 through the outer sealing tube 27 on the outside of the corresponding pipe section 21. Therefore, one end of the hose 243 is connected to the top of the right-angle joint 242 in the space, and the other end of the hose 243 passes through the corresponding outer sealing tube 27 to enter the float tank 1 and connect with the extraction component 3.

[0075] Among them, the extraction component 3 includes a fixed frame 31 fixedly installed inside the floating water tank 1, and a lifting frame 32 is longitudinally slidably connected to the fixed frame 31. An electric rod 33 for controlling the lifting of the lifting frame 32 is installed at the bottom end of the fixed frame 31. A plurality of water pumps 34 corresponding to the number of pipe sections 21 are installed on the lifting frame 32. The input end of each water pump 34 is connected to the hose 243 on the corresponding pipe section 21, and the output end of the water pump 34 is connected to the output elbow 35, and the output ports of the plurality of output elbows 35 are all facing downward.

[0076] The storage unit 5 includes a test tube disc 51 mounted on a movable toothed disc 4, on which a plurality of test tubes 52 evenly distributed around the center of the test tube disc 51 are mounted, a rubber film 53 for covering the mouth of the test tube 52 is provided at the top of the test tube 52, and a cross cutout 54 is provided at the center of the rubber film 53. The rotation of the movable toothed disc 4 can enable the plurality of test tubes 52 on any test tube disc 51 to be located directly below the plurality of output elbows 35, respectively.

[0077] Specifically, when it is necessary to extract a liquid sample, it is necessary to first control the stepper motor 8 together with the movable gear disc 4 to rotate until the nearest empty storage unit 5 on the movable gear disc 4 moves to directly below the discharge port of the extraction component 3, and then control all the water pumps 34 to start, so that liquids of different water depths can be extracted through multiple connected hoses 243, and discharged into the storage unit 5 through multiple output elbows 35, and finally control the stepper motor 8 together with the movable gear disc 4 to rotate quantitatively until the adjacent empty storage unit 5 moves to directly below the discharge port of the extraction component 3. During this process, the movable gear disc 4 rotates quantitatively, and the rotating shaft 61 is rotated through the meshing transmission gear disc 62, so that the multiple cleaning units 7 sleeved on the rotating shaft 61 rotate quantitatively in their respective corresponding pipe sections 21.

[0078] Furthermore, since the method of collecting multiple liquid samples set in this embodiment is to automatically extract and then automatically store, it is necessary to limit the sealing method of the test tube 52 used for storage, by providing a rubber membrane 53 covering the tube mouth at the tube mouth of the test tube 52, and opening a cross cut 54 on the rubber membrane 53. Under the characteristics of the rubber membrane 53 material, when the rubber membrane 53 is not subjected to longitudinal pressure, the existence of the cross cut 54 has little effect on the effect of the rubber membrane 53 sealing the tube mouth of the test tube 52. The method of discharging liquid from the multiple output elbows 35 into the multiple test tubes 52 in a one-to-one correspondence is to arrange the discharge ports of the multiple output elbows 35 in accordance with the arrangement of the multiple test tubes 52 on each test tube tray 51. The arrangement is consistent. When any test tube disk 51 is rotated to an appropriate position by the movable gear disk 4, the lifting frame 32 is controlled to descend by the electric rod 33, so that the discharge ports of the multiple output elbows 35 can pass through the cross cutout 54 of the rubber membrane 53 on the corresponding test tube 52 and extend into the corresponding test tube 52. After the extraction component 3 is drained, the lifting frame 32 is controlled to rise by the electric rod 33, so that the multiple output elbows 35 can be extracted from the multiple test tubes 52. At this time, the tube ports are closed under the action of the material properties of the rubber membrane 53. After multiple regular extractions of stored liquid samples, the user can take out the test tubes 52 on all storage units 5, so that the device can store liquid samples again.

[0079] The cleaning unit 7 includes a transmission sleeve 71 and a transmission ring 72. The transmission sleeve 71 is fixedly sleeved on the outside of the annular outer groove 611, and the transmission sleeve 71 is located between the two collection holes 26 of the corresponding pipe section 21. The transmission ring 72 is coaxially installed on the inner circumferential surface of the corresponding pipe section 21, and the transmission ring 72 is located below the two collection holes 26 on the corresponding pipe section 21.

[0080] The transmission sleeve 71 is rotatably connected with an energy storage shaft assembly 73 that passes through the transmission sleeve 71 transversely. The energy storage shaft assembly 73 is connected to a transmission sleeve with two cylinder brushes 74. The two cylinder brushes 74 are respectively located on both sides of the transmission sleeve 71.

[0081] When the transmission sleeve 71 rotates, one end of the energy storage shaft assembly 73 can engage with the transmission ring 72 to enable the energy storage shaft assembly 73 to rotate on the transmission sleeve 71; when the energy storage shaft assembly 73 rotates on the transmission sleeve 71, the two cylindrical brushes 74 can roll and brush the lower surface of the first spacer 24 in the corresponding pipe section 21.

[0082] The energy storage shaft assembly 73 includes a driven shaft 731 that transversely penetrates the transmission sleeve 71, and a coil spring 732 is fixedly sleeved on the driven shaft 731. The coil spring 732 is located inside the rotating shaft 61 and is fixedly connected to the inner wall of the rotating shaft 61. One end of the energy storage shaft assembly 73 is fixedly connected to a transmission gear 733, and the other end of the energy storage shaft assembly 73 is rotatably connected to a driven gear 734. The outer circumferential surfaces of the transmission gear 733 and the driven gear 734 are both provided with evenly distributed tooth grooves.

[0083] The driven shaft 731 rotates so that the transmission gear 733 and the driven gear 734 coincide with the central axes of the two collection holes 26 , respectively, and the sizes of the transmission gear 733 and the driven gear 734 are both smaller than the size of the collection hole 26 .

[0084] The transmission ring 72 is provided with two arc-shaped racks 721 which are distributed correspondingly with respect to the central axis of the transmission ring 72. One side of the two arc-shaped racks 721 is in contact with the inner wall of the pipe section 21, and both ends of the two arc-shaped racks 721 extend to the side walls of the corresponding two collection holes 26 respectively. The top ends of the two arc-shaped racks 721 are meshed with the transmission gear 733 and the driven gear 734 through evenly distributed tooth grooves.

[0085] Two laterally distributed connecting rods 75 are also provided on the transmission sleeve 71. The two connecting rods 75 are located between the two corresponding energy storage shaft assemblies 73. The front ends of the two connecting rods 75 are provided with hole blocking plates 76. The cross-section of the hole blocking plates 76 is a Z-shaped structure. The rotation of the transmission sleeve 71 can enable the two hole blocking plates 76 to cover the two corresponding collection holes 26.

[0086] Specifically, the water ecological environment that needs to be monitored generally has a high content of pollutants such as turbidity and suspended matter in the water body. Since multiple water pipes that pump water at different depths are exposed to natural water bodies for a long time, pollutants may be attached to the pipe mouths in large quantities due to the flow of water, or eutrophic water bodies may be exposed to sunlight, causing algae to grow in large quantities at the pipe mouths. As a result, when using water pipes to extract liquid samples, the attached pollutants can easily be extracted with the water pipes, which will interfere with the accuracy of various parameters of the liquid samples. Therefore, it is necessary to limit the position of the water pipe mouths used to extract liquids to reduce the chance of algae growth, and to frequently clean the pipe mouths to reduce the interference of attached pollutants on the extracted samples.

[0087] By opening two collection holes 26 on the pipe section 21, when the movable toothed disc 4 rotates to any storage unit 5 and is located directly below the liquid discharge port of the extraction component 3, the two collection holes 26 are not covered by the two hole blocking sheets 76. At this time, water can flow through the space between the two collection holes 26, and the hose 243 can extract the liquid in the space through the right-angle joint 242; when there is no need to extract liquid samples, the movable toothed disc 4 is controlled to rotate quantitatively until the center line between any two adjacent storage units 5 is located directly below the liquid discharge port of the extraction component 3. At this time, the two hole blocking sheets 76 are just in a position to cover the two collection holes 26 (at this time, the transmission gear 733 is engaged in the middle position of an arc-shaped rack 721), so that the space is in a sunlight-free state, and it is difficult for algae to grow in large quantities.

[0088] When it is necessary to open the two collection holes 26 on all the pipe sections 21, the movable toothed disc 4 is controlled to rotate quantitatively so that the empty storage unit 5 closest to the extraction component 3 moves to the position directly below the discharge port of the extraction component 3. During this process, the rotating shaft 61 rotates together with the transmission sleeve 71 and the driven shaft 731 around the central axis of the rotating shaft 61. When the driven shaft 731 rotates, the transmission gear 733 at the end of the driven shaft 731 moves on the meshing arc-shaped rack 721 and rotates along the central axis of the driven shaft 731. When the transmission gear 733 rotates, it will rotate synchronously with the driven shaft 731 (the rotation of the driven shaft 731 will not rotate together with the driven gear 734 around the driven shaft 731). The driven shaft 731 rotates along its central axis, and the two cylindrical brushes 74 roll and brush the lower surface of the first diaphragm 24 and the input port at the bottom of the right-angle joint 242 as the driven shaft 731 rotates, and the coil spring 732 sleeved on the outer side of the driven shaft 731 will continue to expand and accumulate elastic potential energy until the transmission gear 733 disengages from the arc-shaped rack 721 meshing with it and enters any collection hole 26. At this time, the elastic potential energy released by the coil spring 732 causes the driven shaft 731 to rotate rapidly along its central axis, causing the two cylindrical brushes 74 to roll and brush rapidly, thereby performing double cleaning on the lower surface of the first diaphragm 24 and the input port of the right-angle joint 242, effectively reducing the interference of attached contaminants on the extraction of liquid samples.

[0089] The large outer area of ​​the upper part of the hole blocking piece 76 fits against the inner wall of the pipe segment 21, and the small outer area of ​​the lower part of the hole blocking piece 76 at the bend fits against the top and inner side of the arc-shaped rack 721. Therefore, when the hole blocking piece 76 covers the collection hole 26, the gap between the hole blocking piece 76 and the collection hole 26 is small, and pollutants in the external water body are difficult to enter the pipe segment 21 to pollute the cleaning unit 7, thereby improving the service life of the device.

[0090] Embodiment 2

[0091] This embodiment does not need multiple storage, so there is no need to set up the storage unit 5 and the lifting frame 32 and the electric rod 33 of the extraction component 3, and the remaining structure is consistent with the embodiment.

[0092] Embodiment 3

[0093] The remaining structures of this embodiment are consistent with those of the first embodiment, except that a sensor for detecting a specified type of parameter in the water body is additionally installed on each first spacer 24, and a signal transmission module for transmitting the sensor detection signal is installed in the float tank 1. When used in conjunction with the device provided in the first embodiment, the water environment can be monitored more specifically. The various sensor detection ends installed on the first spacer 24 are all located below the first spacer 24, so that the cleaning unit 7 can frequently clean all sensor detection ends.

[0094] The embodiments and / or implementation methods described above are only used to illustrate the preferred embodiments and / or implementation methods for realizing the technology of the present invention, and are not intended to limit the implementation methods of the technology of the present invention in any form. Any technical personnel in this field may make slight changes or modifications to other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the present invention, but they should still be regarded as technologies or embodiments that are essentially the same as the present invention.

[0095] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and its core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the invention to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A water sampling device for water ecological monitoring, comprising a floating water tank (1) floating on a designated water surface area, characterized in that: Also includes: A sample collection tube (2), which is arranged at the bottom of the floating water tank (1) and is used to extend below the water body, and is used to form multiple collection positions at different water depths; An extraction component (3), which is arranged inside the floating water tank (1) and connected to the top end of the sample collection tube (2), and is used to extract liquid samples at different water depths through the sample collection tube (2); A movable toothed disc (4) rotatably connected to the interior of the floating water tank (1); A plurality of storage units (5), which are all arranged on the movable toothed disc (4) and are evenly distributed around the center of the movable toothed disc (4), and are used to independently store a plurality of liquid samples extracted by the extraction component (3); A transmission assembly (6), which is arranged inside the floating water tank (1) and is in transmission connection with the movable gear disc (4); A plurality of cleaning units (7) are mounted one by one on the plurality of collection positions of the sample collection tube (2); the plurality of cleaning units (7) are all in transmission connection with the transmission assembly (6); the transmission assembly (6) is capable of controlling the plurality of cleaning units (7) to synchronously clean the plurality of collection positions of the sample collection tube (2); A stepping motor (8) installed inside the floating water tank (1) and used to drive the movable gear disc (4) to rotate quantitatively; The sample collection tube (2) comprises a plurality of tube sections (21) butted end to end, wherein the tube section (21) at the end is connected to a connecting seat (22), the connecting seat (22) is fixedly connected to the bottom end of the floating water tank (1), and the tube section (21) at the front end is provided with a bearing seat (23) for rotationally connecting to the transmission assembly (6); The inner side of each pipe section (21) is provided with a first spacer (24) and a second spacer (25) which are distributed in parallel, and the first spacer (24) and the second spacer (25) cooperate with the inner wall of the pipe section (21) to form a closed space, and the outer side of each pipe section (21) is provided with an outer sealing tube (27) for connecting to the connecting seat (22), one end of the outer sealing tube (27) is connected to the inside of the floating water tank (1), and the other end of the outer sealing tube (27) is connected to the closed space in the corresponding pipe section (21); Each of the pipe segments (21) is provided with two collection holes (26) communicating with the interior thereof, the two collection holes (26) being symmetrically distributed about the central axis of the pipe segment (21), and the two collection holes (26) are located on the pipe segment (21) below the corresponding first spacer (24); The transmission assembly (6) comprises a rotating shaft (61) located on the central axes of the plurality of pipe sections (21); one end of the rotating shaft (61) is rotatably connected to the bearing seat (23); the other end of the rotating shaft (61) passes through the connecting seat (22) and extends to the interior of the floating water tank (1) and is sleeved with a transmission gear plate (62); the outer side of the transmission gear plate (62) is meshed with the movable gear plate (4) via tooth grooves evenly distributed thereon; the rotating shaft (61) is provided with a plurality of annular outer grooves (611) corresponding to the number of the pipe sections (21); each of the annular outer grooves (611) is located on the central axis of the two collection holes (26) corresponding to the pipe section (21); The cleaning unit (7) comprises a transmission sleeve (71) and a transmission ring (72); the transmission sleeve (71) is fixedly sleeved on the outside of the annular outer groove (611), and the transmission sleeve (71) is located between the two collection holes (26) corresponding to the pipe section (21); the transmission ring (72) is coaxially mounted on the inner circumferential surface of the corresponding pipe section (21), and the transmission ring (72) is located below the two collection holes (26) on the corresponding pipe section (21); The transmission sleeve (71) is rotatably connected to an energy storage shaft assembly (73) that passes through the transmission sleeve (71) transversely, and the transmission sleeve on the energy storage shaft assembly (73) is connected to two cylinder brushes (74), and the two cylinder brushes (74) are respectively located on two sides of the transmission sleeve (71); When the transmission sleeve (71) rotates, one end of the energy storage shaft assembly (73) can mesh with the transmission ring (72) so that the energy storage shaft assembly (73) rotates on the transmission sleeve (71); when the energy storage shaft assembly (73) rotates on the transmission sleeve (71), the two cylindrical brushes (74) can roll and brush the lower surface of the first spacer (24) in the corresponding pipe section (21); A first through hole (241) is provided at the center of the first spacer (24), the first through hole (241) being used for the rotation shaft (61) to pass through, a right-angle joint (242) for connecting the upper and lower spaces of the first spacer (24) is installed on the first spacer (24), one end of the right-angle joint (242) located above the first through hole (241) is connected to a hose (243), and one end of the hose (243) passes through the corresponding outer sealing tube (27) and is connected to the extraction component (3); A second through hole (251) is provided at the center of the second spacer (25), and the second through hole (251) is used for the rotating shaft (61) to pass through.

2. A water sampling device for water ecological monitoring according to claim 1, characterized in that: The energy storage shaft assembly (73) comprises a driven shaft (731) that transversely penetrates the transmission sleeve (71); a coil spring (732) is fixedly sleeved on the driven shaft (731); the coil spring (732) is located inside the rotating shaft (61) and is fixedly connected to the inner wall of the rotating shaft (61); one end of the energy storage shaft assembly (73) is fixedly connected to a transmission gear (733); the other end of the energy storage shaft assembly (73) is rotatably connected to a driven gear (734); and the outer circumferential surfaces of the transmission gear (733) and the driven gear (734) are both provided with evenly distributed tooth grooves; The driven shaft (731) rotates so that the transmission gear (733) and the driven gear (734) respectively coincide with the central axes of the two collection holes (26), and the sizes of the transmission gear (733) and the driven gear (734) are both smaller than the sizes of the collection holes (26).

3. A water sampling device for water ecological monitoring according to claim 2, characterized in that: The transmission ring (72) is provided with two arc-shaped racks (721) which are distributed correspondingly with respect to the central axis of the transmission ring (72); one side of the two arc-shaped racks (721) is in contact with the inner wall of the pipe section (21); and both ends of the two arc-shaped racks (721) extend to the side walls of the corresponding two collection holes (26); and the top ends of the two arc-shaped racks (721) are meshed with the transmission gear (733) and the driven gear (734) through tooth grooves which are evenly distributed.

4. A water sampling device for water ecological monitoring according to claim 1, characterized in that: The transmission sleeve (71) is further provided with two laterally distributed connecting rods (75), the two connecting rods (75) being located between two corresponding energy storage shaft assemblies (73), the front ends of the two connecting rods (75) being provided with hole blocking sheets (76), the cross section of the hole blocking sheets (76) being a Z-shaped structure, and the rotation of the transmission sleeve (71) enables the two hole blocking sheets (76) to cover the two corresponding collection holes (26).

5. The water sampling device for water ecological monitoring according to claim 1 is characterized in that: The extraction assembly (3) comprises a fixed frame (31) fixedly mounted inside the floating water tank (1); a lifting frame (32) is longitudinally slidably connected to the fixed frame (31); an electric rod (33) for controlling the lifting of the lifting frame (32) is mounted at the bottom end of the fixed frame (31); a plurality of water pumps (34) corresponding to the number of the pipe sections (21) are mounted on the lifting frame (32); an input end of each of the water pumps (34) is connected to the hose (243) on the corresponding pipe section (21); an output end of the water pump (34) is connected to an output elbow (35); and output ports of the plurality of output elbows (35) are all downwardly facing.

6. A water sampling device for water ecological monitoring according to claim 4, characterized in that: The storage unit (5) comprises a test tube disc (51) mounted on the movable toothed disc (4); a plurality of test tubes (52) evenly distributed around the center of the test tube disc (51) are mounted on the test tube disc (51); a rubber membrane (53) for covering the tube opening of the test tube (52) is provided at the top of the test tube (52); a cross cutout (54) is provided at the center of the rubber membrane (53); and the movable toothed disc (4) is rotated so that the plurality of test tubes (52) on any of the test tube discs (51) are respectively located directly below the plurality of output elbows (35).

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