A device for collecting phytoplankton vertically layered samples

Abstract

The utility model relates to plankton collection sampling technical field provides a kind of plankton vertical stratification collection sampling device, including main component: the main component includes metal plate, filter screen, inelastic sounding line, filter device and double-layer sampling net box;The filter screen is fixedly connected to the bottom end of metal plate, filter device is fixedly connected to the bottom end of filter screen, inelastic sounding line is fixedly connected to the top end of metal plate, double-layer sampling net box is installed to the bottom end of filter device;Disassembly component: the disassembly component includes installation cylinder, threaded rod, screw block, round frame and clamping rod;The installation cylinder is fixedly connected to one end of double-layer sampling net box.The utility model sets up disassembly component, through the auxiliary cooperation between installation cylinder and threaded rod, can rotate round frame by the rotation of threaded rod in clockwise direction simultaneously, and make three groups of clamping rod swing and insert tube and make clamping connection, can assist staff to disassemble and clean double-layer sampling net box.

Description

Technical Field

[0001] This utility model relates to the field of plankton collection and sampling technology, and in particular to a plankton vertical stratification collection and sampling device. Background Technology

[0002] Plankton refers to drifting organisms that live in water but lack effective mobility. They are divided into phytoplankton and zooplankton. By collecting a certain volume of water and placing it in a container and then keeping it still for a period of time, the plankton can be allowed to settle in the water in the container. This allows us to observe the survival status of plankton in the aquatic environment and to sample and test the plankton to find the impact of the aquatic environment on the genes of plankton. To address this, patent publication number 202322504561.2 discloses a sampling device for plankton, comprising a box, an inner placement box containing a sample box, a fixing component on one side of the placement box, a U-shaped rod inside the box, a mounting plate above the U-shaped rod, a rotating rod sleeved inside the mounting plate, and a first lug fixedly mounted on the bottom side of the mounting plate. In use, this sampling device for plankton can effectively collect and detect plankton at different depths, avoiding the problem of existing sampling nets failing to collect samples from deep water layers. This avoids the issue where, after collecting samples from deep layers, the sampling net may mix with shallow-layer plankton as it rises out of the water, leading to significant errors in the collected data and affecting its accuracy. Therefore, this device improves sampling accuracy and the practicality of the sampling device. The existing technical solutions described above have the following drawbacks: Although the placement box and cover can be sealed with a gasket, and then raised out of the water body, making it convenient for personnel to collect biological samples from different layers and improving the accuracy of sampling and testing, the structural design of the sampling device often adopts a complex integrated or multi-layer nested structure, and the connection between the components is cumbersome. This makes it difficult for staff to quickly disassemble the device after sampling, requiring a lot of time and manpower. On the other hand, during the sampling of planktonic organisms, algae, microorganisms and other impurities easily adhere to the inner wall of the device. Some narrow pipes and filter components are difficult to access, and disassembly is inconvenient, making thorough cleaning impossible. The residual sample impurities will not only contaminate the subsequently collected samples, affecting the accuracy and reliability of experimental data, but long-term accumulation may also cause blockage of equipment pipes and corrosion of components, shortening the service life of the device. Utility Model Content

[0003] The purpose of this invention is to provide a plankton vertical stratification sampling device to solve the problem that existing plankton vertical stratification sampling devices are inconvenient for workers to disassemble and clean.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a plankton vertical stratification sampling device, comprising; Main components: The main components include a metal plate, a filter screen, an inelastic sounding rope, a filtering device, and a double-layer sampling cage; The filter screen is fixedly connected to the bottom end of the metal plate, the filter device is fixedly connected to the bottom end of the filter screen, the inelastic sounding rope is fixedly connected to the top end of the metal plate, and the double-layer sampling net box is installed at the bottom end of the filter device. Disassembly and assembly components: The disassembly and assembly components include a mounting cylinder, a threaded rod, a screw block, a circular frame, and a locking rod; The mounting cylinder is fixedly connected to one end of the double-layer sampling net box, the threaded rod is movably connected to the inside of the mounting cylinder, the circular frame is rotatably connected to the center of the inside of the mounting cylinder, the clamping rod is rotatably connected to the inner wall of the mounting cylinder, and the screw block is fixedly connected to the outside of the circular frame.

[0005] Preferably, the disassembly and assembly assembly further includes a sleeve, a connecting rod, and a tube; The sleeve frame is rotatably connected to the inner side of the circular frame, the connecting rod is fixedly connected to the outside of the clamping rod, and the insertion tube is fixedly connected to the center of the bottom end of the filter device.

[0006] Preferably, the insertion tube and the clamping rod are interlocked, and the screw block is threadedly connected to the outside of the threaded rod.

[0007] Preferably, one end of the threaded rod extends to the outside of the mounting cylinder through the mounting cylinder, and a sealing gasket is provided at the extended end of the threaded rod.

[0008] Preferably, the main component further includes a housing; The box is installed at the bottom of the double-layer sampling net box.

[0009] Preferably, auxiliary components are also included; The auxiliary components include a rotary knob, a limiting rod, a limiting block, a rotating plate, and a card holder; The rotating knob is rotatably connected to the outside of the housing, the limiting rod is inserted into the inside of the rotating knob, the limiting block is fixedly connected to the lower part of the outer side of the housing, the rotating plate is fixedly connected to the outside of the rotating knob, and the card holder is fixedly connected to the inside of the rotating plate.

[0010] Preferably, the auxiliary components further include counterweights and connecting ropes; The counterweight is engaged inside the bracket, and the connecting rope is fixedly connected to one end of the counterweight.

[0011] The present invention provides a plankton vertical stratification sampling device, the advantages of which are: This utility model, by setting up a disassembly and assembly component, and through the auxiliary cooperation between the installation cylinder and the threaded rod, can drive the circular frame to rotate while rotating the threaded rod clockwise, and cause the three sets of locking rods to swing and engage with the inserted tube, which can assist the staff in disassembling, assembling and cleaning the double-layer sampling net box.

[0012] Based on the aforementioned beneficial effects, an auxiliary component is provided. Through the auxiliary cooperation between the knob and the limiting rod, the installation formed between the knob and the limiting rod can be released, the knob can be rotated to flip the rotating plate, and multiple sets of counterweights can be removed for use. This can assist staff in daily storage, providing space for storing and storing counterweights and reducing wear and tear on counterweights caused by external factors. Attached Figure Description

[0013] Figure 1 This is an axonometric view of the present invention; Figure 2 This is a three-dimensional exploded view of the auxiliary components of this utility model; Figure 3 This is another axonometric view of the present invention; Figure 4 This is a three-dimensional exploded view of the present invention; Figure 5 This is a three-dimensional disassembled view of the assembly and disassembly components of this utility model.

[0014] Explanation of the reference numerals in the figure: 11. Metal plate; 12. Filter screen; 13. Inelastic sounding rope; 14. Filtering device; 15. Double-layer sampling cage; 16. Cage body; 21. Mounting cylinder; 22. Threaded rod; 23. Threaded block; 24. Round frame; 25. Clamping rod; 26. Sleeve frame; 27. Connecting rod; 28. Insert tube; 31. Rotary knob; 32. Limiting rod; 33. Limiting block; 34. Rotating plate; 35. Card holder; 36. Counterweight; 37. Connecting rope. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 2-4 The present invention provides a plankton vertical stratification sampling device, comprising: Main components: The main components include a metal plate 11, a filter screen 12, an inelastic sounding rope 13, a filter device 14, and a double-layer sampling net box 15; The filter screen 12 is fixedly connected to the bottom end of the metal plate 11, the filter device 14 is fixedly connected to the bottom end of the filter screen 12, the non-elastic depth sounding rope 13 is fixedly connected to the top end of the metal plate 11, and the double-layer sampling net box 15 is installed at the bottom end of the filter device 14. The main components also include the housing 16; The box 16 is installed at the bottom of the double-layer sampling box 15; Before sampling, the metal plate 11, filter screen 12, filter device 14, double-layer sampling net box 15 and box body 16 are connected in sequence. Then the length of the non-elastic depth sounding rope 13 is checked and adjusted. Then the staff put the sampling device into the water. Since the sampling device is in a sealed state, plankton from other depths will not enter the sampling device. Next, after the sampling device emerges from the water, the staff disassembles the filter device 14 and the double-layer sampling net box 15, conducts quantitative research and water quality analysis on the sample from the filter device 14, and performs qualitative analysis on the plankton in the double-layer sampling net box 15. After completing one sampling operation, the filter device 14 and the double-layer sampling net box 15 can be cleaned or replaced, and the above operations can be repeated to perform sampling operations at other depths, thus completing high-fidelity stratified sampling. All of the above parts are existing technologies; Disassembly and assembly components: The disassembly and assembly components include mounting sleeve 21, threaded rod 22, screw block 23, round frame 24 and locking rod 25; The mounting cylinder 21 is fixedly connected to one end of the double-layer sampling net box 15, the threaded rod 22 is movably connected to the inside of the mounting cylinder 21, the circular frame 24 is rotatably connected to the center of the inside of the mounting cylinder 21, the clamping rod 25 is rotatably connected to the inner wall of the mounting cylinder 21, and the screw block 23 is fixedly connected to the outside of the circular frame 24. The assembly and disassembly components also include a sleeve 26, a connecting rod 27, and a tube 28; The sleeve frame 26 is rotatably connected to the inner side of the circular frame 24, the connecting rod 27 is fixedly connected to the outside of the clamping rod 25, and the insertion tube 28 is fixedly connected to the center of the bottom end of the filter device 14. The screw block 23 and the threaded rod 22 are set on the same central axis. The sleeve 26 is used to provide space for the lever 25 to swing, and the insertion tube 28 is used to provide space for the lever 25 to engage. With the auxiliary cooperation between the mounting cylinder 21 and the threaded rod 22, the circular frame 24 can be rotated while the threaded rod 22 is rotated clockwise, and the three sets of locking rods 25 can swing and the insertion tube 28 can be engaged and connected. Working principle: While the staff were disassembling and assembling the filter device 14 and the double-layer sampling net box 15; First, by rotating the threaded rod 22 clockwise, the screw block 23 can slide along the threaded track outside the threaded rod 22, thereby allowing the circular frame 24 to rotate. Next, multiple sets of locking rods 25 can be made to swing inside the sleeve frame 26. The connecting rod 27, which is fixedly connected to the top of the locking rod 25, is installed and connected to the sleeve frame 26 and the round frame 24. During the rotation of the round frame 24, the three sets of locking rods 25 can be driven to swing and disengage from the insertion tube 28. This step can assist staff in disassembling and cleaning the double-layer sampling cage 15.

[0017] Please see Figure 1-3 As shown, this embodiment, based on the above embodiment, also includes auxiliary components; The auxiliary components include a rotary knob 31, a limit rod 32, a limit block 33, a rotating plate 34, and a card holder 35; The knob 31 is rotatably connected to the outside of the housing 16, the limiting rod 32 is inserted into the inside of the knob 31, the limiting block 33 is fixedly connected to the lower part of the outside of the housing 16, the rotating plate 34 is fixedly connected to the outside of the knob 31, and the card holder 35 is fixedly connected to the inside of the rotating plate 34.

[0018] The auxiliary components also include a counterweight 36 and a connecting rope 37; The counterweight 36 is engaged inside the bracket 35, and the connecting rope 37 is fixedly connected to one end of the counterweight 36; The rotary knob 31 provides space for the insertion of the limit rod 32, the limit block 33 provides space for the threaded connection of the limit rod 32, and the bracket 35 provides space for the engagement and installation of the counterweight 36. With the auxiliary cooperation between the rotating knob 31 and the limiting rod 32, the rotating plate 34 can be flipped after the installation formed between the rotating knob 31 and the limiting rod 32 is released, and multiple sets of counterweights 36 can be removed and used. Working principle: When the operator uses the device; First, by rotating the limiting rod 32 clockwise, the staff can disengage the threaded connection between the limiting rod 32 and the limiting block 33, and pull one end of the limiting rod 32 out from the inside of the knob 31; Next, by rotating the knob 31 clockwise, the rotating plate 34 can be rotated inside the knob 31, and the counterweight 36 that is locked and installed at the card holder 35 can be removed in sequence for use; This step can assist staff in loading and unloading the counterweight 36, reducing wear and tear on the counterweight 36 caused by external factors.

[0019] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A vertical stratified sampling device for plankton, characterized in that, include: Main components: The main components include a metal plate (11), a filter screen (12), an inelastic sounding rope (13), a filter device (14), and a double-layer sampling net box (15). The filter screen (12) is fixedly connected to the bottom end of the metal plate (11), the filter device (14) is fixedly connected to the bottom end of the filter screen (12), the non-elastic sounding rope (13) is fixedly connected to the top end of the metal plate (11), and the double-layer sampling net box (15) is installed at the bottom end of the filter device (14). Disassembly and assembly components: The disassembly and assembly components include an installation cylinder (21), a threaded rod (22), a screw block (23), a circular frame (24), and a locking rod (25); The mounting cylinder (21) is fixedly connected to one end of the double-layer sampling net box (15), the threaded rod (22) is movably connected to the inside of the mounting cylinder (21), the circular frame (24) is rotatably connected to the center of the inside of the mounting cylinder (21), the clamping rod (25) is rotatably connected to the inner wall of the mounting cylinder (21), and the screw block (23) is fixedly connected to the outside of the circular frame (24).

2. The plankton vertical stratification sampling device according to claim 1, characterized in that, The assembly and disassembly assembly also includes a sleeve (26), a connecting rod (27), and a tube (28). The sleeve frame (26) is rotatably connected to the inner side of the circular frame (24), the connecting rod (27) is fixedly connected to the outside of the clamping rod (25), and the insertion tube (28) is fixedly connected to the bottom center of the filter device (14).

3. The plankton vertical stratification sampling device according to claim 2, characterized in that, The insertion tube (28) and the locking rod (25) are engaged, and the screw block (23) is threaded to the outside of the threaded rod (22).

4. The plankton vertical stratification sampling device according to claim 2, characterized in that, One end of the threaded rod (22) extends through the mounting sleeve (21) to the outside of the mounting sleeve (21), and a sealing gasket is provided at the extended end of the threaded rod (22).

5. The plankton vertical stratification sampling device according to claim 1, characterized in that, The main component also includes a housing (16). The box (16) is installed at the bottom of the double-layer sampling box (15).

6. The plankton vertical stratification sampling device according to claim 1, characterized in that, It also includes auxiliary components; The auxiliary components include a rotary knob (31), a limiting rod (32), a limiting block (33), a rotating plate (34), and a card holder (35). The knob (31) is rotatably connected to the outside of the housing (16), the limiting rod (32) is inserted into the inside of the knob (31), the limiting block (33) is fixedly connected to the lower part of the outside of the housing (16), the rotating plate (34) is fixedly connected to the outside of the knob (31), and the card holder (35) is fixedly connected to the inside of the rotating plate (34).

7. The plankton vertical stratification sampling device according to claim 6, characterized in that, The auxiliary components also include a counterweight (36) and a connecting rope (37). The counterweight (36) is engaged inside the bracket (35), and the connecting rope (37) is fixedly connected to one end of the counterweight (36).

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