A portable benthic animal sieving device

Abstract

The utility model relates to aquatic organism monitoring technical field, concretely discloses a portable benthic animal screening device, including screening shell, screening shell inside is provided with screening body, and the both sides center of screening body is fixed with the pivot, and the other end of pivot is rotatably connected with screening shell inner wall, and the both sides of screening body near the top fixed swing lever, and the both sides of screening shell correspond swing lever place are equipped with semicircular opening, and swing lever slidingly sets in semicircular opening. The utility model aims at making screening net body not to separate from screening body, reduces the screening precision decline caused by screening net body shaking, and can screen different size benthic animals, realizes the multistage screening of benthic animals, when working at night, provides part illumination for screening device through small illuminating lamp, and staff can better observe and use the device, and the overall structure is convenient to carry, can well adapt to the heavy monitoring demand nowadays.

Description

Technical Field

[0001] This utility model relates to the field of aquatic organism monitoring technology, specifically to a portable benthic animal screening device. Background Technology

[0002] Benthic animals are a group of aquatic animals that spend all or most of their life cycle at the bottom of water bodies. Besides those that live terrestrial or active lives, their habitats are mostly attached to hard substrates such as rocks or buried in soft substrates such as mud and sand. In addition, there are benthic species that attach to the surface of plants or other benthic animals, as well as those that inhabit the intertidal zone. In terms of feeding methods, they primarily feed on suspended matter and sediment. Most are invertebrates, forming a complex ecological group. Based on size, they are divided into macrobenthic animals and microbenthic animals.

[0003] With the development of industrial technology and urban economy, people's living standards are improving, and they are also paying more attention to lake water quality. Environmental protection is a fundamental national policy of my country, and water quality protection is a particularly important part of it. Scientific researchers are contributing to the development of water environment protection, and benthic animal surveys are an important part of this. Therefore, the ecological monitoring of benthic animals in aquatic environments has become especially important.

[0004] Currently, during field sampling and monitoring, cleaned benthic animal samples are usually placed in white dissection trays for sorting, which is inefficient, relies too much on manual sorting, takes a long time, increases the workload of staff, and is inconvenient for staff to observe and use the device when working at night, making it unsuitable for heavy monitoring tasks. Utility Model Content

[0005] In view of the shortcomings of the prior art mentioned above, the purpose of this utility model is to ensure that the screening mesh does not detach from the screening frame set inside the screening body, thereby reducing the decrease in screening accuracy caused by the shaking of the screening mesh. It can also screen benthic animals of different sizes, realize multi-stage screening of benthic animals, reduce the workload of staff, and provide partial lighting for the screening device through a small light when working at night, making it easier for staff to observe and use the device. The overall structure is easy to carry and can be well adapted to today's heavy monitoring tasks.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows: A portable benthic animal screening device includes a screening shell, a screening body is disposed inside the screening shell, a rotating shaft is fixedly disposed at the center of both sides of the screening body, the other end of the rotating shaft is rotatably connected to the inner wall of the screening shell, a swing rod is fixedly disposed on both sides of the screening body near the top, and a semi-circular opening is provided on both sides of the screening shell corresponding to the swing rod, and the swing rod is slidably disposed in the semi-circular opening.

[0007] As a further embodiment of this utility model, springs are provided at both ends of the inner side of the semi-circular opening, and a sliding arc plate is fixed at the other end of the spring. The sliding arc plate is slidably disposed in the semi-circular opening, and a buffer pad is provided at the top of the sliding arc plate.

[0008] As a further embodiment of this utility model, a plurality of screening screens are slidably disposed within the screening body.

[0009] As a further embodiment of this utility model, a handle is installed on one side of the screening screen.

[0010] As a further embodiment of this utility model, two extended fixing plates are symmetrically arranged on the side of the screening body, and a limiting baffle is rotatably arranged between the two extended fixing plates. A horizontal fixing plate is symmetrically arranged on the screening body, and the fixing plate is located above the rotation trajectory of the limiting baffle.

[0011] As a further embodiment of this utility model, both the limiting baffle and the fixing plate are provided with threaded holes of the same size.

[0012] As a further embodiment of this utility model, a door frame is provided on one side of the screening shell via a hinge.

[0013] As a further embodiment of this utility model, a storage battery is provided on the side of the screening shell away from the door frame.

[0014] As a further embodiment of this utility model, a plurality of small lighting lamps are provided on the inner side of the top of the screening shell.

[0015] As a further embodiment of this utility model, the top of the screening shell is covered with a cover, and a handle is fixed to the top of the cover.

[0016] Compared with existing technologies, the beneficial effects of this utility model are as follows: 1. When using this screening device, the screening body can be seen simply by opening the cover and door frame with the handle. During operation, the screening mesh body, which is slidably set in the screening frame, is pulled out, and the mesh size of the mesh body increases sequentially from top to bottom. Then, the sediment containing benthic animals collected by the mud sampler is poured into the top layer of the screening mesh body, and the mesh body is put back into the screening frame. Next, the two limiting baffles are rotated so that the threaded holes on them are aligned with the threaded holes on the fixing plate, and then the fixing bolts are inserted to fix the screening mesh body, preventing it from shaking or falling off during operation, thus effectively improving the screening accuracy. By swinging the swing rod in the semi-circular opening, the screening body body is driven to swing back and forth. During this process, the sediment containing benthic animals passes through multiple layers of screening mesh bodies with different mesh sizes in sequence, achieving rapid cleaning and screening. This structure can effectively separate benthic animals of different sizes, complete multi-stage screening, and reduce the workload of operators.

[0017] 2. Furthermore, when this device is operating at night, a small light can provide partial illumination for the screening device, making it easier for staff to observe and use the device. The overall structure is easy to carry and can be well adapted to today's heavy monitoring tasks. Attached Figure Description

[0018] 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.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the screening body of this utility model; Figure 3 This is a schematic diagram of the semi-circular opening of this utility model; Figure 4 This is a schematic diagram of the screening screen body of this utility model; Figure 5 This is a schematic diagram of the rotating shaft of this utility model; Figure 6 This is a schematic diagram of the limiting baffle of this utility model; In the diagram: 10. Screening shell; 11. Door frame; 12. Cover; 13. Handle; 14. Battery; 15. Small light; 16. Semi-circular opening; 17. Sliding arc plate; 18. Spring; 20. Screening body; 21. Swing rod; 22. Rotating shaft; 23. Screening mesh; 24. Handle; 25. Extension fixing plate; 26. Fixing plate; 27. Limiting baffle. Detailed Implementation

[0020] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0021] Please see the appendix Figure 1-6 A portable benthic animal screening device includes a screening shell 10, a screening body 20 inside the screening shell 10, a rotating shaft 22 fixedly installed at the center of both sides of the screening body 20, the other end of the rotating shaft 22 being rotatably connected to the inner wall of the screening shell 10, a swing rod 21 fixedly installed on both sides of the screening body 20 near the top, and a semi-circular opening 16 opened on both sides of the screening shell 10 corresponding to the swing rod 21, the swing rod 21 being slidably installed in the semi-circular opening 16.

[0022] Multiple screening screens 23 are slidably disposed within the screening body 20, and a handle 24 is installed on one side of each screening screen 23. The screening screens 23 are arranged from top to bottom as follows: 40 mesh, 80 mesh, 100 mesh, and 120 mesh. A fixed frame is provided on the outer periphery of each screening screen 23. Several sliding grooves are provided inside the screening body 20, and the fixed frame and sliding grooves are adapted to each other.

[0023] The screening body 20 has two symmetrically arranged extended fixing plates 25 on its side. A limit baffle 27 is rotatably arranged between the two extended fixing plates 25. A horizontal fixing plate 26 is symmetrically arranged on the screening body 20, and the fixing plate 26 is located above the rotation trajectory of the limit baffle 27. The limit baffle 27 can rotate to the end face of the sliding groove. Both the limit baffle 27 and the fixing plate 26 have threaded holes of the same size.

[0024] Springs 18 are provided at both ends of the inner side of the semicircular opening 16. A sliding arc plate 17 is fixed to the other end of the spring 18. The sliding arc plate 17 is slidably disposed within the semicircular opening 16, and a buffer pad is provided at the top of the sliding arc plate 17. By swinging the swing rod 21 within the semicircular opening 16, the screening body 20 swings, and the sediment with benthic animals is rapidly washed and screened from top to bottom through multiple screening nets 23.

[0025] In use, the screening mesh 23, which is slidably set inside the screening body 20, is pulled out. The mesh size of the screening mesh 23 increases sequentially from top to bottom. Then, the sediment containing benthic animals collected by the mud sampler is poured into the top screening mesh 23. The screening mesh 23 is then placed back into the screening body 20. The two limiting baffles 27 are then rotated to align the threaded holes on the limiting baffles 27 with the threaded holes on the fixing plate 26. The screening mesh 23 is then restrained by fixing bolts passing through the threaded holes, preventing it from detaching from the screening body 20. This reduces the decrease in screening accuracy caused by the shaking of the screening mesh 23, enabling multi-stage screening of benthic animals and reducing the workload of the operators.

[0026] A door frame 11 is provided on one side of the screening shell 10 via a hinge, and a cover 12 is provided on the top of the screening shell 10, with a handle 13 fixed to the top of the cover 12.

[0027] A battery 14 is installed on the side of the screening housing 10 away from the door frame 11, and multiple small lights 15 are installed on the inner side of the top of the screening housing 10. The battery 14 is electrically connected to the multiple small lights 15. The technology of using the small lights 15 is known to those skilled in the art and will not be described in detail here.

[0028] The working principle of this utility model is as follows: When using this screening device, simply open the cover 12 and the door frame 11 using the handle 13 to access the screening body 20. Pull out the screening mesh 23, which is slidably installed inside the screening body 20. The mesh size of the screening mesh 23 increases sequentially from top to bottom. Then, pour the sediment containing benthic animals collected by the mud sampler into the top-mounted screening mesh 23. Next, place the screening mesh 23 into the screening body 20. Then, rotate the two limiting baffles 27. The sides of the limiting baffles 27 are in contact with the sides of the screening body 20, and the limiting baffles 27 restrict the lateral movement of the screening mesh 23. The threaded holes on the limiting baffle 27 are aligned with the threaded holes on the fixing plate 26. A fixing bolt passes through the threaded holes to restrict the screening mesh 23, preventing it from detaching from the screening body 20. The swing rod 21 swings within the semi-circular opening 16, causing the screening body 20 to swing. Deposits containing benthic animals pass through multiple screening meshes 23 from top to bottom for rapid cleaning and screening, thus enabling the screening of benthic animals of different sizes and achieving multi-stage screening. Furthermore, when working at night, a small light 15 provides partial illumination to the screening device, facilitating better observation and operation by staff. The overall structure is portable and well-suited to today's demanding monitoring tasks.

[0029] Finally, it should be noted that the lighting lamps, storage batteries 23, and other components involved in this utility model are all general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods. In the spare parts of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and the matching controller and power supply, are connected by wires. The specific connection methods should refer to the working principle of this utility model. The electrical connections between each electrical component are completed in the order of operation. The detailed connection methods are all technologies known in the art.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A portable benthic animal screening device, comprising a screening shell (10), characterized in that, The screening shell (10) is provided with a screening body (20) inside. A rotating shaft (22) is fixedly provided at the center of both sides of the screening body (20). The other end of the rotating shaft (22) is rotatably connected to the inner wall of the screening shell (10). A swing rod (21) is fixed on both sides of the screening body (20) near the top. A semi-circular opening (16) is provided on both sides of the screening shell (10) corresponding to the swing rod (21). The swing rod (21) is slidably disposed in the semi-circular opening (16).

2. The portable benthic animal screening device according to claim 1, characterized in that, Springs (18) are provided at both ends of the inner side of the semi-circular opening (16). A sliding arc plate (17) is fixed at the other end of the spring (18). The sliding arc plate (17) is slidably disposed in the semi-circular opening (16). A buffer pad is provided at the top of the sliding arc plate (17).

3. The portable benthic animal screening device according to claim 1, characterized in that, Several screening screens (23) are slidably disposed inside the screening body (20).

4. The portable benthic animal screening device according to claim 3, characterized in that, A handle (24) is installed on one side of the screening mesh (23).

5. A portable benthic animal screening device according to claim 3, characterized in that, The screening body (20) has two symmetrically arranged extended fixing plates (25) on its side. A limiting baffle (27) is rotatably arranged between the two extended fixing plates (25). The limiting baffle (27) can be rotated to a state parallel to the side of the screening body (20). A horizontal fixing plate (26) is symmetrically arranged on the screening body (20). The fixing plate (26) is located above the rotation trajectory of the limiting baffle (27).

6. A portable benthic animal screening device according to claim 5, characterized in that, Both the limiting baffle (27) and the fixing plate (26) are provided with threaded holes, and the threaded holes are of the same size.

7. A portable benthic animal screening device according to claim 1, characterized in that, A door frame (11) is provided on one side of the screening shell (10) via a hinge.

8. A portable benthic animal screening device according to claim 7, characterized in that, A battery (14) is provided on the side of the screening shell (10) away from the door frame (11).

9. A portable benthic animal screening device according to claim 1, characterized in that, Multiple small lighting lamps (15) are provided on the inner side of the top of the screening shell (10).

10. A portable benthic animal screening device according to claim 1, characterized in that, The top of the screening shell (10) is covered with a cover (12), and a handle (13) is fixed to the top of the cover (12).

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