A filtering sampling device for marine environment monitoring

Abstract

The utility model relates to the field of marine environment monitoring, especially a filtering sampling device for marine environment monitoring. Including fixed support and fixed base, a plurality of fixed support same side common fixed connection has fixed base, the bottom center of fixed base is equipped with the cylindrical groove, still including first motor, fixed base outer wall one side fixed connection has first motor, and first motor output shaft penetrates one side of fixed base. The utility model discloses through the accurate alignment and the misalignment of first flow guide hole and second flow guide hole, can independently collect seawater sample at different depths, and immediately after collection, the sample is completely isolated from the outside seawater, effectively avoids the cross contamination of seawater sample of different depths, ensures that every sample truly reflects the original environment of its depth, greatly improves the accuracy and reliability of marine monitoring data.

Description

Technical Field

[0001] This utility model relates to the field of marine environmental monitoring, and in particular to a filtering sampling device for marine environmental monitoring. Background Technology

[0002] Marine environmental monitoring is an important means of assessing the health of marine ecosystems, providing early warnings of marine disasters, and protecting marine resources. Among these measures, in-situ sampling of seawater and bringing it back to the laboratory for physicochemical and biological analysis is the most basic and core part of the monitoring work. Marine water itself has significant vertical stratification characteristics. Seawater at different depths varies greatly in terms of temperature, salinity, pressure, dissolved oxygen, and nutrient content, and its biological community composition is also very different. Therefore, the ability to accurately obtain seawater samples from different depths is of vital importance for studying marine physical processes, chemical cycles, and ecosystem structure.

[0003] However, most existing technologies can only perform single-point or fixed-depth sampling, which cannot reflect the true full picture of the vertical structure of the water body. To achieve stratified monitoring, multiple deployments and retrievals are required, which is not only inefficient and costly, but also results in poor sample comparability and low data reliability due to time misalignment. This single-function and inefficient seawater monitoring mode can hardly meet the needs of modern marine monitoring. Therefore, it is necessary to design a filter sampling device for marine environmental monitoring that can continuously and accurately complete multi-depth sampling, which is an urgent technical problem to be solved in this field. Utility Model Content

[0004] In order to overcome the shortcomings of existing technologies that can only sample at single points or fixed depths, resulting in low efficiency and low data reliability, a filter sampling device for marine environmental monitoring is provided.

[0005] The technical solution of this utility model is as follows: a filtering sampling device for marine environmental monitoring, including a fixed bracket and a fixed base. Several fixed brackets are fixedly connected to the fixed base on the same side. A cylindrical groove is opened at the center of the bottom of the fixed base. It also includes a first motor. The first motor is fixedly connected to one side of the outer wall of the fixed base. The output shaft of the first motor passes through one side of the fixed base. A roller is rotatably connected to the inner wall of the fixed base. One end of the roller is fixedly connected to the output shaft of the first motor. A cable is spirally wound on the outer wall of the roller. One end of the cable is fixedly connected to the outer wall of the roller. A connecting rod is fixedly connected to the other end of the cable. The connecting rod passes through the cylindrical groove opened at the bottom of the fixed base. A sampling mechanism for marine environmental monitoring is fixedly connected to the bottom end of the connecting rod. A locking mechanism is fixedly connected to the outer wall of the sampling mechanism.

[0006] In a preferred embodiment of this utility model, the sampling mechanism includes a sealing end cap, a rotating unit installed inside the sealing end cap, a second sampling chamber installed at the bottom of the rotating unit, a first sampling chamber fixedly connected to the bottom of the second sampling chamber, and several first guide holes penetrating through the first and second sampling chambers. The positions of the first guide holes on the first and second sampling chambers are opposite. A guide cylinder is rotatably connected to the outer walls of the first and second sampling chambers in a sealed manner. The top of the guide cylinder is sealed and rotatably connected to the sealing end cap. Several second guide holes penetrating through the outer wall of the guide cylinder are provided. A chuck is fixedly connected to the bottom of the first sampling chamber. A base is rotatably connected to the outer wall of the chuck. A lead ball is fixedly connected to the center of the bottom of the base. The top of the base is fixedly connected to the guide cylinder. A filter unit is provided on the outside of the guide cylinder 18.

[0007] In a preferred embodiment of the present invention, the filter unit includes a limiting plate. Two limiting plates are vertically fixed to the outer wall of the guide tube. The two limiting plates are located on both sides of the second guide hole. A protective net is provided on the outer side of the guide tube. Limiting grooves are opened on both sides of the protective net. The protective net is slidably connected to the guide tube through the limiting grooves and the limiting plates.

[0008] In a preferred embodiment of this utility model, the locking mechanism includes a locking block, a locking block fixedly connected to the outer wall of the base, the top of the locking block abutting against the bottom of the protective net, two limiting blocks fixedly connected to the bottom of the protective net, each limiting block being slidably connected to the locking block, a locking block engaging with the limiting block, the locking block being slidably connected to the locking block, a pull rod fixedly connected to the other side of the locking block, both the locking block and the pull rod being slidably connected to the locking block, a pull ring fixedly connected to the other end of the pull rod, the two pull rings abutting against the locking block on the side of the locking block away from the limiting block, the other end of the second spring being fixedly connected to the inner wall of the locking block, a guide block fixedly connected to the bottom of the locking block, the inner wall of the guide block being fixedly connected to the outer wall of the base.

[0009] In a preferred embodiment of this utility model, the rotating unit includes a support base, a support base is fixedly connected to the inner wall of the sealing end cover, a second motor is fixedly connected to the top of the support base, the output end of the second motor passes through the bottom of the support base and is fixedly connected to a first gear, two circular slots are opened on the top of the second sampling chamber, the output end of the second motor is rotatably connected to one of the circular slots on the top of the second sampling chamber, a support arm is fixedly connected to the side of the support base away from the inner wall of the sealing end cover, the bottom of the support arm is engaged with the other circular slot on the top of the second sampling chamber, three support rods abut against the top of the second sampling chamber, the top of each support rod is fixedly connected to the bottom of the sealing end cover, and a counterweight ring is fixedly connected to the top of the second sampling chamber, the counterweight ring is located between the support arm and the three support rods.

[0010] In a preferred embodiment of the present invention, the rotating unit further includes a second gear, the first gear meshing with the second gear, the second gear being a ring gear, the bottom of the second gear being fixedly connected to the top of the guide tube, the outer wall of the second gear being rotatably connected to the sealing end cap, the guide tube and the sealing end cap being rotatably connected, and the guide tube and the sealing end cap being sealed together.

[0011] In a preferred embodiment of the present invention, the chuck includes a chuck plate, the bottom of the first sampling chamber is fixedly connected to the chuck plate, the chuck plate has a plurality of long slots arranged in an annular array, a first spring is fixedly connected in each of the plurality of long slots, the other end of the first spring is fixedly connected to a protrusion, the protrusion is slidably connected to the chuck plate, and an annular groove is provided on the inner wall of the base, the plurality of protrusions are slidably connected to the annular groove. Beneficial effects

[0012] 1. This utility model, through the precise alignment and misalignment of the first and second guide holes, can independently collect seawater samples at different depths and immediately isolate the samples from the outside seawater after collection, effectively avoiding cross-contamination of seawater samples at different depths, ensuring that each sample truly reflects the original environment at its depth, and greatly improving the accuracy and reliability of marine monitoring data.

[0013] 2. This utility model achieves rapid loading and unloading of the protective net through the quick locking design of the locking mechanism, which not only reduces the difficulty of operation and labor costs, but also greatly shortens the time of a single sampling operation and improves the overall work efficiency. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the fixed base structure of this utility model; Figure 3 This is a schematic diagram of the sampling mechanism structure of this utility model; Figure 4 This is a schematic diagram of the first sampling chamber structure of this utility model; Figure 5 This is a schematic diagram of the chuck structure of this utility model; Figure 6 This is a schematic diagram of the locking mechanism of this utility model; Figure 7 This is a schematic diagram of the protective net structure of this utility model.

[0015] The above-mentioned attached drawings include the following reference numerals: 1-fixed bracket, 2-fixed base, 3-first motor, 4-roller shaft, 5-cable, 6-connecting rod, 7-sealed end cap, 8-support seat, 9-second motor, 10-first gear, 11-support arm, 111-support rod, 12-second gear, 13-first sampling chamber, 14-second sampling chamber, 15-first guide hole, 16-counterweight ring, 17-chuck, 171-clamping plate, 172-protrusion, 173-first spring, 18-guide cylinder, 181-second guide hole, 19-limiting plate, 20-base, 21-annular groove, 22-locking block, 221-guide block, 222-pull ring, 223-pull rod, 224-second spring, 225-clamping block, 23-protective net, 231-limiting groove, 232-limiting block, 24-lead ball. Detailed Implementation

[0016] Although this invention may be described with respect to a particular application or industry, those skilled in the art will recognize its broader applicability. Those skilled in the art will understand that terms such as "above," "below," "upward," "downward," etc., are used to describe the drawings and not to indicate a limitation on the scope of the invention as defined by the appended claims. Any numerical designations such as "first" or "second" are merely illustrative and not intended to limit the scope of the invention in any way. Example

[0017] A filtering sampling device for marine environmental monitoring, such as Figures 1-7 As shown, it includes a fixed bracket 1 and a fixed base 2. Several fixed brackets 1 are fixedly connected to the fixed base 2 on the same side. A cylindrical groove is opened at the center of the bottom of the fixed base 2. The feature is that it also includes a first motor 3. The first motor 3 is fixedly connected to one side of the outer wall of the fixed base 2. The output shaft of the first motor 3 passes through one side of the fixed base 2. A roller 4 is rotatably connected to the inner wall of the fixed base 2. One end of the roller 4 is fixedly connected to the output shaft of the first motor 3. A cable 5 is spirally wound on the outer wall of the roller 4. One end of the cable 5 is fixedly connected to the outer wall of the roller 4. A connecting rod 6 is fixedly connected to the other end of the cable 5. The connecting rod 6 passes through the cylindrical groove opened at the bottom of the fixed base 2. A sampling mechanism for marine environmental monitoring is fixedly connected to the bottom end of the connecting rod 6. A locking mechanism is fixedly connected to the outer wall of the sampling mechanism.

[0018] The sampling mechanism includes a sealing end cap 7, inside which a rotating unit is installed. A second sampling chamber 14 is installed at the bottom of the rotating unit. A first sampling chamber 13 is fixedly connected to the bottom of the second sampling chamber 14. Both the first and second sampling chambers 13 and 14 have several first guide holes 15 extending through them. The positions of the first guide holes 15 on the first and second sampling chambers 13 and 14 are opposite. A guide cylinder 18 is rotatably connected to the outer walls of both the first and second sampling chambers 13 and 14. The top of the guide cylinder 18 is sealed and rotatably connected to the sealing end cap 7. Several second guide holes 181 extend through the outer wall of the guide cylinder 18. After the flow tube 18 rotates, the second guide hole 181 can overlap with the first guide hole 15 opened in the first sampling chamber 13 and the second sampling chamber 14 respectively, so that the seawater at the required sampling location can enter the first sampling chamber 13 and the second sampling chamber 14 respectively. The bottom of the first sampling chamber 13 is fixedly connected to a chuck 17, the diameter of the chuck 17 is equal to the diameter of the first sampling chamber 13, and the outer wall of the chuck 17 is rotatably connected to a base 20. A lead ball 24 is fixedly connected to the center of the bottom of the base 20. The lead ball 24 is used to bring the sampling mechanism into the required sampling depth. The top of the base 20 is fixedly connected to the flow tube 18, and a filter unit is provided on the outside of the flow tube 18.

[0019] The filtration unit includes limiting plates 19. Two limiting plates 19 are vertically fixed to the outer wall of the guide tube 18. The two limiting plates 19 are located on both sides of the second guide hole 181. Their height is greater than the height of the second guide hole 181 but less than the height of the guide tube 18. A protective net 23 is provided on the outside of the guide tube 18. Limiting grooves 231 are opened on both sides of the protective net 23. The protective net 23 is slidably connected to the guide tube 18 through the limiting grooves 231 and the limiting plates 19. The protective net 23 is used to block large debris and prevent them from directly impacting or getting tangled on the guide tube 18, avoiding physical damage or clogging of the second guide hole 181, affecting the collection of water samples, and ensuring that the sampling mechanism can work smoothly and safely.

[0020] The locking mechanism includes a locking block 22. The locking block 22 is fixedly connected to the outer wall of the base 20. The top of the locking block 22 abuts against the bottom of the protective net 23. Two limiting blocks 232 are fixedly connected to the bottom of the protective net 23. Each limiting block 232 is slidably connected to the locking block 22. A locking block 225 is engaged with the limiting block 232. The locking block 225 is slidably connected to the locking block 22. A pull rod 223 is fixedly connected to the other side of the locking block 225. Both the locking block 225 and the pull rod 223 are engaged with the locking block 222. 22 Sliding connection, the other end of the pull rod 223 is fixedly connected to the pull ring 222, the two pull rings 222 are both abutting against the locking block 22 on the side of the pull rod 223, the side of the locking block 225 away from the limiting block 232 is fixedly connected to the second spring 224, the other end of the second spring 224 is fixedly connected to the inner wall of the locking block 22, the bottom of the locking block 22 is fixedly connected to the guide block 221, the inner wall of the guide block 221 is fixedly connected to the outer wall of the base 20, and the guide block 221 is used to divert the water flow.

[0021] The rotating unit includes a support base 8, which is fixedly connected to the inner wall of the sealing end cover 7. A second motor 9 is fixedly connected to the top of the support base 8. The output end of the second motor 9 passes through the bottom of the support base 8 and is fixedly connected to a first gear 10. Two circular slots are opened on the top of the second sampling chamber 14. The output end of the second motor 9 is rotatably connected to one of the circular slots on the top of the second sampling chamber 14. A support arm 11 is fixedly connected to the side of the support base 8 away from the inner wall of the sealing end cover 7. The bottom of the support arm 11 is engaged with the other circular slot on the top of the second sampling chamber 14. Three support rods 111 abut against the top of the second sampling chamber 14. The top of each support rod 111 is fixedly connected to the bottom of the sealing end cover 7. A counterweight ring 16 is fixedly connected to the top of the second sampling chamber 14. The counterweight ring 16 is located between the support arm 11 and the three support rods 111. The several support rods 111 and the counterweight ring 16 make the overall device more stable.

[0022] The rotating unit also includes a second gear 12, which meshes with the first gear 10. The second gear 12 is a ring gear. The bottom of the second gear 12 is fixedly connected to the top of the guide tube 18. The outer wall of the second gear 12 is rotatably connected to the sealing end cover 7. The guide tube 18 and the sealing end cover 7 are rotatably connected and sealed to ensure the airtightness of the internal space. The diameter of the second gear 12 is smaller than the diameter of the guide tube 18, and the diameter of the sealing end cover 7 is equal to the diameter of the guide tube 18.

[0023] The chuck 17 includes a chuck plate 171. The chuck plate 171 is fixedly connected to the bottom of the first sampling chamber 13. The chuck plate 171 has several long slots arranged in a ring array. A first spring 173 is fixedly connected to each of the several long slots. A protrusion 172 is fixedly connected to the other end of the first spring 173. The protrusion 172 is slidably connected to the chuck plate 171. The inner wall of the base 20 has an annular groove 21. The several protrusions 172 are slidably connected to the annular groove 21.

[0024] In this utility model, the left and right directions are both defined as follows: Figure 3 The view direction shown is the reference point. Specifically, when referring to a component moving to the left, it means along... Figure 3 Moving to the left side of the center; when referring to a component moving to the right, it means along the leftward direction. Figure 3 Moving to the right side of the center is a directional definition method that facilitates understanding the device's workflow and ensures the accuracy and consistency of the description.

[0025] In use, staff first navigate the vessel to the designated sampling area, then attach the fixed bracket 1 to the vessel and turn on the first motor 3. The output shaft of the first motor 3 drives the roller 4 to rotate, and the cable 5 is slowly released. The weight of the lead ball 24 causes the sampling mechanism to sink into the ocean. When the sampling device descends to the first sampling position, the first motor 3 is turned off, and the second motor 9 is started. The output shaft of the second motor 9 drives the first gear 10 to rotate clockwise, which in turn drives the second gear 12 to rotate clockwise. The second gear 12 drives the guide tube 18, protective net 23, base 20, locking block 22, and guide block 221 to rotate synchronously. When the second guide hole 181 of the first layer of the guide tube 18 coincides with the first guide hole 15 of the first sampling chamber 13, When the second motor 9 is turned off, seawater enters the first sampling chamber 13 through the protective net 23, the second guide hole 181, and the first guide hole 15. When the first sampling chamber 13 is full of seawater at the first sampling position, the second motor 9 is started. The output shaft of the second motor 9 drives the first gear 10 to rotate counterclockwise, and the first gear 10 drives the second gear 12 to rotate counterclockwise. The second gear 12 drives the guide cylinder 18, the protective net 23, the base 20, the locking block 22, and the guide block 221 to return to their initial positions. At this time, the second motor 9 is turned off, and the first guide hole 15 of the first sampling chamber 13 is sealed through the inner wall of the guide cylinder 18, isolating the seawater sampled at the first sampling position in the first sampling chamber 13 so that it does not mix with seawater from other positions. This can affect the accuracy of monitoring data. Then, the first motor 3 is turned on, and the lead ball 24 continues to move the sampling device downwards. When the sampling device descends to the second sampling position, the first motor 3 is turned off, and the second motor 9 is started. The output shaft of the second motor 9 drives the first gear 10 to rotate counterclockwise, and the first gear 10 drives the second gear 12 to rotate counterclockwise. Similar to the first sampling action, when the second sampling chamber 14 is filled with seawater at the second sampling position, the seawater at the second sampling position in the second sampling chamber 14 is isolated through the inner wall of the guide tube 18. When the guide tube 18, protective net 23, base 20, locking block 22, and guide block 221 all return to their initial positions, the second motor 9 is turned off, and the first motor 3 is started in reverse. At this time, the output shaft of the first motor 3 rotates counterclockwise. The direction is rotated, and the cable 5 is wound around the roller 4. The sampling device is then removed from the seawater through the cable 5. Then, the pull rings 222 on both sides of the locking block 22 are pulled, and the second spring 224 is compressed. The locking block 225 no longer limits the limiting block 232. At this time, the protective net 23 is removed. After removal, it is easy to clean the garbage and debris on the protective net 23 to avoid affecting the next water sample collection. Then, the second motor 9 is started. The second guide hole 181 of the guide tube 18 is aligned with the first guide hole 15 of the first sampling chamber 13 and the second sampling chamber 14 respectively. The seawater collected in the first sampling position in the first sampling chamber 13 and the seawater collected in the second sampling position in the second sampling chamber 14 are taken out respectively, and the seawater at the two different depths is tested.The protective netting 23, the guide tube 18, the first sampling chamber 13, and the second sampling chamber 14 were rinsed and disinfected for future use.

[0026] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A filtering sampling device for marine environmental monitoring, comprising a fixed support (1) and a fixed base (2), wherein a plurality of fixed supports (1) are fixedly connected to the fixed base (2) on the same side, and a cylindrical groove is provided at the center of the bottom of the fixed base (2), characterized in that, It also includes a first motor (3), which is fixedly connected to one side of the outer wall of the fixed base (2). The output shaft of the first motor (3) passes through one side of the fixed base (2). A roller (4) is rotatably connected to the inner wall of the fixed base (2). One end of the roller (4) is fixedly connected to the output shaft of the first motor (3). A cable (5) is spirally wound on the outer wall of the roller (4). One end of the cable (5) is fixedly connected to the outer wall of the roller (4). A connecting rod (6) is fixedly connected to the other end of the cable (5). The connecting rod (6) passes through a cylindrical groove opened at the bottom of the fixed base (2). A sampling mechanism for marine environmental monitoring is fixedly connected to the bottom end of the connecting rod (6). A locking mechanism is fixedly connected to the outer wall of the sampling mechanism.

2. The marine environmental monitoring filter sampling device as described in claim 1, characterized in that, The sampling mechanism includes a sealing end cap (7), a rotating unit installed inside the sealing end cap (7), a second sampling chamber (14) installed at the bottom of the rotating unit, a first sampling chamber (13) fixedly connected to the bottom of the second sampling chamber (14), and several first guide holes (15) penetrating through the first sampling chamber (13) and the second sampling chamber (14). The first guide holes (15) on the first sampling chamber (13) and the second sampling chamber (14) are in opposite positions, and the outer walls of the first sampling chamber (13) and the second sampling chamber (14) are connected together. A guide tube (18) is rotatably connected to the sealing end cap (7) at the top. Several second guide holes (181) are opened through the outer wall of the guide tube (18). A chuck (17) is fixedly connected to the bottom of the first sampling chamber (13). A base (20) is rotatably connected to the outer wall of the chuck (17). A lead ball (24) is fixedly connected to the center of the bottom of the base (20). The top of the base (20) is fixedly connected to the guide tube (18). A filter unit is provided on the outside of the guide tube (18).

3. The marine environmental monitoring filter sampling device as described in claim 2, characterized in that, The filter unit includes a limiting plate (19). Two limiting plates (19) are vertically fixed to the outer wall of the guide tube (18). The two limiting plates (19) are located on both sides of the second guide hole (181). A protective net (23) is provided on the outside of the guide tube (18). Limiting grooves (231) are opened on both sides of the protective net (23). The protective net (23) is slidably connected to the guide tube (18) through the limiting grooves (231) and the limiting plates (19).

4. The marine environmental monitoring filter sampling device as described in claim 3, characterized in that, The locking mechanism includes a locking block (22). The locking block (22) is fixedly connected to the outer wall of the base (20). The top of the locking block (22) abuts against the bottom of the protective net (23). Two limiting blocks (232) are fixedly connected to the bottom of the protective net (23). Each limiting block (232) is slidably connected to the locking block (22). A locking block (225) is engaged with the limiting block (232). The locking block (225) is slidably connected to the locking block (22). A pull rod (223) is fixedly connected to the other side of the locking block (225). The locking block (225) and the pull rod are connected to each other. (223) is slidably connected to the locking block (22). The other end of the pull rod (223) is fixedly connected to the pull ring (222). The two pull rings (222) are abutted against the locking block (22) on the side of the pull rod (223). The second spring (224) is fixedly connected to the side of the locking block (225) away from the limiting block (232). The other end of the second spring (224) is fixedly connected to the inner wall of the locking block (22). The bottom of the locking block (22) is fixedly connected to the guide block (221). The inner wall of the guide block (221) is fixedly connected to the outer wall of the base (20).

5. The marine environmental monitoring filter sampling device as described in claim 4, characterized in that, The rotating unit includes a support base (8), the inner wall of the sealing end cap (7) is fixedly connected to the support base (8), the top of the support base (8) is fixedly connected to the second motor (9), the output end of the second motor (9) passes through the bottom of the support base (8) and is fixedly connected to the first gear (10), the top of the second sampling chamber (14) has two circular slots, the output end of the second motor (9) is rotatably connected to one of the circular slots on the top of the second sampling chamber (14), the side of the support base (8) away from the inner wall of the sealing end cap (7) is fixedly connected to the support arm (11), the bottom of the support arm (11) is engaged with the other circular slot on the top of the second sampling chamber (14), the top of the second sampling chamber (14) is abutted by three support rods (111), the top of each support rod (111) is fixedly connected to the bottom of the sealing end cap (7), the top of the second sampling chamber (14) is fixedly connected to a counterweight ring (16), the counterweight ring (16) is located between the support arm (11) and the three support rods (111).

6. The marine environmental monitoring filter sampling device as described in claim 5, characterized in that, The rotating unit also includes a second gear (12), which meshes with the first gear (10). The second gear (12) is a ring gear. The bottom of the second gear (12) is fixed to the top of the guide tube (18). The outer wall of the second gear (12) is rotatably connected to the sealing end cap (7). The guide tube (18) and the sealing end cap (7) are rotatably connected, and the guide tube (18) and the sealing end cap (7) are sealed together.

7. The marine environmental monitoring filter sampling device as described in claim 6, characterized in that, The chuck (17) includes a chuck plate (171). The bottom of the first sampling chamber (13) is fixedly connected to the chuck plate (171). The chuck plate (171) has several long slots in an annular array. A first spring (173) is fixedly connected in each of the several long slots. A protrusion (172) is fixedly connected to the other end of the first spring (173). The protrusion (172) is slidably connected to the chuck plate (171). An annular groove (21) is opened on the inner wall of the base (20). Several protrusions (172) are slidably connected to the annular groove (21).

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