Zooplankton sample separating device

Abstract

The utility model discloses a zooplankton sample separating device which comprises a bottom plate, a vertical plate is arranged at the upper end of the back face of the bottom plate, a lifting column is movably arranged on the front face of the vertical plate, a plurality of layers of lifting plates are evenly arranged on the lifting column, and detachable sample separating boxes are arranged in the lifting plates. A water collecting box is arranged at the upper end of the bottom plate, an opening is formed in the upper end of the water collecting box, and the opening is larger than the bottom of the sample separating box; the lifting column is driven by a driving device to ascend and descend. The driving device drives the lifting column to do reciprocating lifting motion, so that the lifting column drives the sample separation box to do reciprocating lifting motion through the lifting plate, the sample separation box has an up-down vibration effect, and sample separation of plankton by the sample separation box can be promoted; the sample separation box can be limited in the vertical direction through the limiting plate, the sample separation box can be limited in the front-back direction through the magnet block, the sample separation box can be prevented from moving when the driving device works, and meanwhile the sample separation box can be conveniently taken and placed.

Description

Technical Field

[0001] The utility model relates to the technical field of zooplankton sub-sampling, and particularly relates to a zooplankton sub-sampling device. Background Art

[0002] Zooplankton is a general term for a class of heterotrophic invertebrates that often float in water and cannot manufacture organic matter themselves and the larvae of chordates. It is a group of animals that live a floating life in water. They either have no swimming ability at all or have very weak swimming ability, cannot move over long distances, and are not strong enough to resist the flow of water. Zooplankton are economic aquatic animals; they are important baits for fish and other economic animals in the middle and upper waters, and are of great significance to the development of fishery. Since the distribution of many species of zooplankton is related to climate, they can also be used as indicator animals for warm and cold currents. Many species of zooplankton are important bait sources for fish and shellfish, and some species such as Acetes chinensis and Rhopilema esculenta can be used as human food. In addition, many species can be used as indicator organisms for water pollution. For example, in eutrophic water bodies, species such as Moina rectirostris, Cyclops vicinus, and Brachionus calyciflorus generally form dominant populations. Some species, such as Tetrahymena pyriformis and Daphnia magna, are used as experimental animals in toxicity tests.

[0003] In the Chinese utility model patent with the publication number of CN 210168768 U, an automatic sorting device for zooplankton live samples is disclosed. The filter screen is driven to rotate by a driving motor. Under the action of the gravity of the water body itself and the centrifugal force of the rotation of the filter screen, zooplankton smaller than the aperture of the mesh cloth of the filter screen is filtered out, and the filtered zooplankton is thrown to the surroundings and enters the inner cavity of the collection bin through the inner opening of the collection bin, and then is led out through the discharge pipe. Due to the centrifugal force of the rotation of the filter screen, the filter screen is prevented from being blocked and the filtration efficiency is improved. And because there is no pressurization, the survival rate of floating animals can be well guaranteed. Regarding the above related technologies, the inventor believes that there are the following defects: the filtered zooplankton is thrown to the surroundings by centrifugal force, and the zooplankton hitting the inner wall of the connecting pipe will cause harm to the zooplankton. In addition, the filtered zooplankton does not directly fall into the collection bin, and a good collection effect cannot be achieved, and the whole device is not convenient for disassembly and cleaning. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a zooplankton sub-sampling device to solve the problems put forward in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a zooplankton sub-sampling device, including a bottom plate, a vertical plate is provided at the upper end of the back surface of the bottom plate, a lifting column is movably provided on the front surface of the vertical plate, a plurality of layers of lifting plates are evenly provided on the lifting column, and a detachable sub-sampling box is provided inside the lifting plate;

[0006] A water collecting box is provided at the upper end of the bottom plate. The upper end of the water collecting box is provided with an opening, and the opening is larger than the bottom of the sub-sampling box.

[0007] The lifting column is driven to lift by a driving device. The driving device includes a motor arranged outside the vertical plate. A small gear is provided at the output end of the motor. The small gear is meshed and connected with a large gear. A rotating shaft is provided in the middle of the large gear. The rotating shaft is rotatably installed on the vertical plate and is close to the bottom of the vertical plate. The other end of the rotating shaft is provided with a turntable. An eccentric column is provided on the end face of the turntable. A connecting block is provided at the lower end of the lifting column. The connecting block and the eccentric column are connected by a connecting rod, and both ends of the connecting rod are respectively rotatably connected with the connecting block and the eccentric column.

[0008] Preferably, the lifting plate is U-shaped. Limiting plates are provided at the upper ends of both sides of the lifting plate. The limiting plates are L-shaped. Clamping plates are provided at both sides of the upper end of the sub-sampling box. The clamping plates are located between the limiting plates and the lifting plate.

[0009] Preferably, a magnet block is provided at the bottom of the limiting plate. A magnet block is also provided at one end of the clamping plate. The clamping plate is fixed on the limiting plate by the attraction of the magnet blocks.

[0010] Preferably, a filter screen is provided at the bottom of the sub-sampling box. The mesh holes of the filter screen gradually become smaller from the upper layer to the lower layer.

[0011] Preferably, buffer pads are respectively provided at the lower end of the bottom plate near the four corners. The buffer pads are made of rubber material.

[0012] Preferably, two fixing blocks are provided on the front surface of the vertical plate. The lifting column is slidably connected with the fixing blocks.

[0013] Preferably, the shape of the sub-sampling box gradually shrinks from top to bottom. A handle is provided at the upper end of the front surface of the sub-sampling box.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] The present utility model drives the lifting column to perform reciprocating lifting motion through the driving device, so that the lifting column drives the sub-sampling box to perform reciprocating lifting motion through the lifting plate, enabling the sub-sampling box to have an up-and-down vibration effect, which can promote the sub-sampling of plankton by the sub-sampling box.

[0016] The limiting plates can limit the sub-sampling box in the up-and-down direction, and the magnet blocks can limit the sub-sampling box in the front-and-back direction, which can prevent the displacement of the sub-sampling box when the driving device works, and at the same time can also facilitate the taking and placing of the sub-sampling box. Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 This is the front view of the present utility model;

[0019] Figure 3 This is the side view of the present utility model;

[0020] Figure 4 This is the side sectional view of the present utility model;

[0021] Figure 5 This is the structural schematic diagram of the sample-splitting box of the present utility model.

[0022] In the figure: 1, bottom plate; 2, vertical plate; 3, lifting column; 4, lifting plate; 5, sample-splitting box; 6, water collection box; 7, filter screen; 8, handle; 9, limiting plate; 10, clamping plate; 11, magnet block; 12, fixing block; 13, buffer pad; 14, motor; 15, small gear; 16, large gear; 17, rotating shaft; 18, turntable; 19, eccentric column; 20, connecting block; 21, connecting rod. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-5 , the present utility model provides a technical solution: a zooplankton sample-splitting device, including a bottom plate 1, a vertical plate 2 is provided at the upper end of the back surface of the bottom plate 1, a lifting column 3 is movably provided on the front surface of the vertical plate 2, a plurality of layers of lifting plates 4 are evenly provided on the lifting column 3, and a detachable sample-splitting box 5 is provided inside the lifting plate 4;

[0025] A water collection box 6 is provided at the upper end of the bottom plate 1, the upper end of the water collection box 6 is provided with an opening, and the opening is larger than the bottom of the sample-splitting box 5;

[0026] A filter screen 7 is provided at the bottom of the sample-splitting box 5, and the mesh holes of the filter screen 7 gradually become smaller from the upper layer to the lower layer.

[0027] Among them, the sample-splitting box 5 is used to split zooplankton of different sizes. Pour the water sample with zooplankton into the topmost sample-splitting box 5. According to the size of the mesh holes of the filter screen 7, zooplankton of different sizes can be filtered. The largest zooplankton is filtered to the topmost layer, and the smallest is filtered to the bottommost layer. The water sample flows down through the mesh holes of the filter screen 7 and finally flows into the water collection box 6.

[0028] The lifting column 3 is driven to lift by a driving device. The driving device includes a motor 14 arranged outside the vertical plate 2. A small gear 15 is provided at the output end of the motor 14. The small gear 15 is meshed and connected with a large gear 16. A rotating shaft 17 is provided in the middle of the large gear 16. The rotating shaft 17 is rotatably installed on the vertical plate 2 and is close to the bottom of the vertical plate 2. The other end of the rotating shaft 17 is provided with a turntable 18. An eccentric column 19 is provided on the end face of the turntable 18. A connecting block 20 is provided at the lower end of the lifting column 3. The connecting block 20 and the eccentric column 19 are connected by a connecting rod 21, and both ends of the connecting rod 21 are respectively rotatably connected with the connecting block 20 and the eccentric column 19.

[0029] Two fixing blocks 12 are provided on the front surface of the vertical plate 2. The lifting column 3 is slidably connected with the fixing blocks 12.

[0030] Buffer pads 13 are respectively provided at the lower end of the bottom plate 1 near the four corners. The buffer pads 13 are made of rubber material.

[0031] Among them, the driving device drives the lifting column 3 to make reciprocating lifting movements, so that the lifting column 3 drives the sample splitting box 5 to make reciprocating lifting movements through the lifting plate 4, enabling the sample splitting box 5 to have an up-and-down vibration effect, which can promote the sample splitting of plankton by the sample splitting box 5; the buffer pads 13 at the lower end of the bottom plate 1 have a shock-absorbing effect.

[0032] The motor 14 drives the small gear 15 to rotate. The small gear 15 drives the large gear 16 to rotate. The large gear 16 drives the turntable 18 to rotate through the rotating shaft 17. The turntable 18 drives the lifting column 3 to make reciprocating lifting movements through the eccentric column 19 and the connecting rod 21. Finally, the lifting column 3 drives the sample splitting box 5 to make reciprocating lifting movements through the lifting plate 4.

[0033] The lifting plate 4 is U-shaped. Limiting plates 9 are provided at the upper ends of both sides of the lifting plate 4. The limiting plates 9 are L-shaped. Clamping plates 10 are provided at both upper sides of the sample splitting box 5. The clamping plates 10 are located between the limiting plates 9 and the lifting plate 4.

[0034] Magnet blocks 11 are provided at the bottom of the limiting plates 9. Magnet blocks 11 are also provided at one end of the clamping plates 10. The clamping plates 10 are fixed on the limiting plates 9 by the attraction of the magnet blocks 11.

[0035] The shape of the sample splitting box 5 gradually narrows from top to bottom. A handle 8 is provided at the upper end of the front surface of the sample splitting box 5.

[0036] Among them, the limiting plate 9 is used to limit the sample dividing box 5 in the up and down direction, and the magnet block 11 is used to limit the sample dividing box 5 in the front and back directions, which can prevent the displacement of the sample dividing box 5 when the driving device works, and at the same time facilitate the taking and placing of the sample dividing box 5; when installing the sample dividing box 5, hold the handle 8 on the sample dividing box 5 by hand to insert the clamping plate 10 into the limiting plate 9, and the two magnet blocks 11 attract each other to fix the sample dividing box 5. When taking away the sample dividing box 5, hold the handle 8 by hand and pull the two magnet blocks 11 apart at a certain inclination angle to take away the sample dividing box 5.

[0037] The working principle and usage process of the present utility model:

[0038] First, select a sample dividing box 5 with a suitable filter screen 7 according to the size of the plankton. When installing the sample dividing box 5, hold the handle 8 on the sample dividing box 5 by hand to insert the clamping plate 10 into the limiting plate 9, and the two magnet blocks 11 attract each other to fix the sample dividing box 5; start the motor 14, the motor 14 drives the small gear 15 to rotate, the small gear 15 drives the large gear 16 to rotate, the large gear 16 drives the turntable 18 to rotate through the rotating shaft 17, and the turntable 18 drives the lifting column 3 to do reciprocating lifting motion through the eccentric column 19 and the connecting rod 21. Finally, the lifting column 3 drives the sample dividing box 5 to do reciprocating lifting motion through the lifting plate 4, so that the sample dividing box 5 has an up and down vibration effect, which can promote the sample division of the plankton by the sample dividing box 5. The buffer pad 13 at the lower end of the bottom plate 1 has a shock absorption effect; then pour the water sample with plankton into the topmost sample dividing box 5. According to the size of the mesh holes of the filter screen 7, different sizes of plankton can be filtered. The largest plankton is filtered to the topmost layer, and the smallest is filtered to the bottommost layer. The water sample flows down through the mesh holes of the filter screen 7 and finally flows into the water collecting box 6; after the plankton is sampled, hold the handle 8 by hand and pull the two magnet blocks 11 apart at a certain inclination angle to take away the sample dividing box 5.

[0039] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A zooplankton sub-sampling device, comprising a bottom plate (1), and an upright plate (2) is provided at the upper end of the back surface of the bottom plate (1), characterized in that: A lifting column (3) is movably arranged on the front surface of the vertical plate (2). A plurality of layers of lifting plates (4) are evenly arranged on the lifting column (3). A detachable sample dividing box (5) is arranged inside the lifting plate (4). A water collecting box (6) is arranged at the upper end of the bottom plate (1). The upper end of the water collecting box (6) is provided with an opening, and the opening is larger than the bottom of the sample dividing box (5). The lifting column (3) is driven to lift by a driving device. The driving device includes a motor (14) arranged outside the vertical plate (2). A small gear (15) is arranged at the output end of the motor (14). The small gear (15) is meshed and connected with a large gear (16). A rotating shaft (17) is arranged in the middle of the large gear (16). The rotating shaft (17) is rotatably installed on the vertical plate (2), and the rotating shaft (17) is close to the bottom of the vertical plate (2). The other end of the rotating shaft (17) is provided with a turntable (18). An eccentric column (19) is arranged on the end surface of the turntable (18). A connecting block (20) is arranged at the lower end of the lifting column (3). The connecting block (20) and the eccentric column (19) are connected by a connecting rod (21), and both ends of the connecting rod (21) are respectively rotatably connected with the connecting block (20) and the eccentric column (19).

2. The zooplankton sub-sampling device according to claim 1, characterized in that: The shape of the lifting plate (4) is U-shaped. Limit plates (9) are arranged at the upper ends of both sides of the lifting plate (4). The shape of the limit plate (9) is L-shaped. Clamping plates (10) are arranged at both sides of the upper end of the sample dividing box (5). The clamping plates (10) are located between the limit plates (9) and the lifting plate (4).

3. The zooplankton sub-sampling device according to claim 2, characterized in that: Magnetic blocks (11) are arranged at the bottom of the limit plates (9). One end of the clamping plate (10) is also provided with a magnetic block (11). The clamping plate (10) is fixed on the limit plate (9) by the attraction of the magnetic blocks (11).

4. A zooplankton sub-sampling device according to claim 1, characterized in that: A filter screen (7) is arranged at the bottom of the sample dividing box (5). The mesh holes of the filter screen (7) gradually become smaller from the upper layer to the lower layer.

5. A zooplankton sub-sampling device according to claim 1, characterized in that: Buffer pads (13) are respectively arranged at the lower end of the bottom plate (1) near the four corners. The material of the buffer pads (13) is rubber.

6. The zooplankton sub-sampling device according to claim 1, characterized in that: Two fixing blocks (12) are arranged on the front surface of the vertical plate (2). The lifting column (3) is slidably connected with the fixing blocks (12).

7. A zooplankton sub-sampling device according to claim 1, characterized in that: The shape of the sample dividing box (5) gradually shrinks from top to bottom. A handle (8) is arranged at the upper end of the front surface of the sample dividing box (5).

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