A portable fast benthic animal screener

Abstract

The present invention discloses a portable fast benthic animal screener, including a screen cover, the cover body of the screen cover is set as a hinged split structure, the cover body of the screen cover is sleeved with a shell, the shell of the shell cooperates with the screen cover and is also set as a hinged split structure, the cover body of the screen cover is spaced apart from the inner wall of the shell, one end of the cover body of the screen cover is fixedly connected with a rocker, the rotating shaft of the rocker passes through the shell and a sealed bearing is installed at the connection, the middle of the screen cover and the shell are penetrated and embedded with a water pipe, the outlet end of the water pipe is set in the screen cover, the feeding end of the water pipe is set at the top of the shell, and the shell bottom of the shell is connected and installed with a drain pipe. The present invention adopts a rotating embedded screen cylinder in the shell, the water pipe extending into the screen cylinder is designed for rapid feeding, and the drain pipe is designed in the shell to discharge debris, the screening speed is fast, the sample collection is complete, and it is easy to use.

Description

Technical Field

[0001] The invention relates to the field of hydrological technology, in particular to a portable rapid benthic animal sifter. Background Art

[0002] Benthic animals refer to aquatic animals that live at the bottom of water bodies for all or most of their life history. Most of them are invertebrates. They are a complex ecological group and an important part of the animal community of aquatic ecosystems. According to their size, they can be divided into large benthic animals and small benthic animals. Most benthic animals live in the bottom mud for a long time. They are strong in regionality and have weak migration ability. They usually have little ability to avoid environmental pollution and changes. The destruction and reconstruction of their communities require a relatively long time. Most species are large and easy to identify. At the same time, different types of benthic animals have different adaptability to environmental conditions and tolerance and sensitivity to adverse factors such as pollution. Therefore, the use of benthic animal population structure, dominant species, quantity and other parameters can accurately reflect the quality of water bodies, and can also comprehensively reflect the interaction between various pollutants in water bodies. In the process of river benthic sampling, the filtration and screening of benthic animal samples is an extremely important link, and it is also the most time-consuming and labor-intensive part. The most widely used one is the benthic animal collection net. First, a certain volume of bottom mud is taken with a mud bucket or mud collector, and then introduced into the benthic animal filter net. The bottom mud is washed with water to wash away most of the sludge. Sometimes the operator needs to stir the bottom mud by hand to make it wash away faster, and then use tweezers to sort out the benthic animals. At present, there are mainly two types of collection screens: 1. Cylindrical stainless steel screen, which consists of an annular side wall and a circular bottom; 2. Traditional benthic animal net, which consists of a screen ring and a funnel screen.

[0003] However, these devices have the following problems: the elution process is laborious and the residues are messy, which is not conducive to the selection and collection of benthic animals; the existing collection screens are quite cumbersome, time-consuming and labor-intensive to wash, and cannot fully meet the needs of samplers; and the filter screen is prone to residual sludge, which is not easy to rinse clean, low efficiency, and easy to damage benthic animals; and some existing screening devices are relatively complex in design and difficult to carry to the field for use. Therefore, there is an urgent need for a device that is easy to carry, suitable for field use, and can quickly screen benthic animals. Summary of the invention

[0004] The purpose of the present invention is to provide a portable rapid benthic animal screener, which adopts a rotating embedded screen cylinder in the outer shell, and is designed with a water pipe extending into the screen cylinder for rapid feeding, and a drainage pipe is designed on the outer shell to discharge debris. The screening speed is fast, the sample collection is complete, and it is easy to use, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a portable rapid benthic animal screener, comprising a screen cover, the cover body of the screen cover is arranged as a hinged detachable structure, the cover body of the screen cover is sleeved with an outer shell, the shell of the outer shell cooperates with the screen cover and is also arranged as a hinged detachable structure, the cover body of the screen cover is spaced apart from the inner wall of the outer shell, one end of the cover body of the screen cover is fixedly connected with a rocker, the rotating shaft of the rocker passes through the outer shell and a sealed bearing is installed at the connection, a water pipe is penetrated and embedded in the middle of the screen cover and the outer shell, the outlet end of the water pipe is arranged in the screen cover, the feeding end of the water pipe is arranged at the top of the outer shell, and the shell bottom of the outer shell is connected and installed with a drain pipe.

[0006] Preferably, a funnel is connected to the feeding end of the water conduit, and an opening end of the funnel is higher than the top end of the shell body of the outer shell.

[0007] Preferably, the screen cover and the outer shell are both set to be cylindrical, and the mesh size of the screen cover is set to 40 meshes.

[0008] Preferably, the rocker is arranged as an L-shaped structure, and the bent plate rod body of the rocker is arranged parallel to the rotation axis.

[0009] Preferably, the upper cover body of the screen cover is hingedly installed by a hinge, and the other end of the upper part of the screen cover and the bottom cover body relative to the hinge are fastened by a fixing screw.

[0010] Preferably, the upper shell of the shell is hingedly installed by a hinge, and the other end of the upper shell and the bottom shell relative to the hinge is fastened by a magnet buckle, and the upper shell and the bottom shell are both glued with waterproof gaskets on the edge connecting plates, and the bottom of the shell is also fixedly connected to a base, and the base is arranged in a triangular shape.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The whole device has a simple design structure, easy operation and low cost;

[0013] 2. The device is easy to carry, suitable for field sampling, and can be used for a long time;

[0014] 3. The device saves time and effort when used. A rotating inlaid screen cylinder is used in the outer shell. A water pipe extending into the screen cylinder is designed to quickly replenish water. A drainage pipe is designed on the outer shell to discharge debris. The screening speed is fast and the sample collection is complete.

[0015] 4. The device is used for screening and collecting benthic animals and has good practicality and convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a schematic diagram of the three-dimensional structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the screen cover of the present invention;

[0018] Figure 3 It is a schematic diagram of the internal cross-sectional structure of the present invention.

[0019] In the figure: 1. base; 2. rocker; 201. rotating shaft; 3. water pipe; 4. screen cover; 5. outer shell; 6. funnel; 7. magnet buckle; 8. drain pipe; 9. fixing screw; 10. waterproof gasket. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-3 The present invention provides a technical solution: a portable fast benthic animal screener, comprising a screen cover 4, the cover body of the screen cover 4 is set as a hinged split structure, the cover body of the screen cover 4 is sleeved with a shell 5, the shell of the shell 5 is also set as a hinged split structure in cooperation with the screen cover 4, the cover body of the screen cover 4 is spaced apart from the inner wall of the shell 5, one end of the cover body of the screen cover 4 is fixedly connected with a rocker 2, the rotating shaft 201 of the rocker 2 penetrates the shell 5 and a sealed bearing is installed at the connection, the middle of the screen cover 4 and the shell 5 is penetrated and inlaid with a water pipe 3, the outlet end of the water pipe 3 is set in the screen cover 4, the feeding end of the water pipe 3 is set at the top of the shell 5, and the bottom of the shell 5 is connected and installed with a drain pipe 8. The bottom mud and water are put in through the water pipe 3, the rocker 2 is turned, the screen cover 4 rotates, the sewage and benthic animals are separated, the sewage falls into the shell 5 and is discharged from the drain pipe 8, and the shell 5 and the screen cover 4 can be opened to take out the benthic animals needed for the activity.

[0022] The feeding end of the water pipe 3 is connected to a funnel 6, and the opening end of the funnel 6 is higher than the shell top end of the shell 5. The funnel 6 is used for feeding, and a large amount of water can be added quickly, so that the bottom mud is fully washed.

[0023] The screen cover 4 and the housing 5 are both set to be cylindrical, and the mesh number of the screen cover 4 is set to 40 meshes. The circular screen structure is conducive to protecting benthic animals and avoiding damage to benthic animals during the screening process.

[0024] The rocker 2 is configured as an L-shaped structure, and the bent plate rod of the rocker 2 is configured parallel to the rotation axis 201. The rocker 2 can quickly drive the screen cover 4 to rotate, thereby accelerating the separation of the bottom mud under the action of centrifugal force.

[0025] The upper cover of the screen cover 4 is hingedly installed by hinges, and the other end of the upper part of the screen cover 4 and the bottom cover relative to the hinge is fastened by fixing screws 9. The screen cover 4 can be opened from the top and is semi-cylindrical, with one side connected by hinges and the other side closed and fixed by fixing screws 9, so as to facilitate the collection of sediment.

[0026] The upper shell of the housing 5 is hingedly installed by hinges, and the other end of the upper shell 5 and the bottom shell relative to the hinge is fastened by a magnet buckle 7, and the upper shell 5 and the bottom shell are both glued with waterproof gaskets 10 on the edge connection plate, and the bottom of the housing 5 is also fixedly connected with a base 1, which is set in a triangular shape. The base 1 is set as a corrosion-resistant steel base, and the use of the base 1 can play a role in supporting the stability of the entire device; the housing 5 is set as a lightweight stainless steel shell, and the closed state is controlled by the magnet buckle 7, and a waterproof gasket 10 is provided at the opening and closing of the housing 5, and the use of the housing 5 can prevent the splashing of sludge during the rotation of the built-in screen cover 4.

[0027] Specific instructions for use are as follows:

[0028] 1. Before pouring the bottom mud, place the device on a flat work surface, open the housing 5 through the magnet buckle 7, then unscrew the fixing screws 9, open the built-in screen cover 4, then use the water pipe 3 and connect it tightly with the funnel 6, then install the bottom drainage pipe 8, and place the outlet in the river;

[0029] 2. Pour the collected bottom mud into the screen cover 4, then close the screen cover 4 and tighten the fixing screws 9, cover the outer shell 5, ensure that the waterproof gasket 10 is in a close and closed state, then quickly add a large amount of water to the funnel 6, and shake the rocker 2 while adding water, so that the screen cover 4 can rotate quickly;

[0030] 3. After the bottom mud and sewage in the screen cover 4 are completely discharged from the drain pipe 8 and the benthic animals are rinsed clean, stop rotating the rocker 2, then open the housing 5 and the screen cover 4, and sort out the benthic animals.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable rapid benthic animal screener, comprising a screen cover (4), characterized in that: The cover body of the screen cover (4) is arranged as a hinged detachable structure, the cover body of the screen cover (4) is sleeved with an outer shell (5), the shell of the outer shell (5) cooperates with the screen cover (4) and is also arranged as a hinged detachable structure, the cover body of the screen cover (4) is arranged at a distance from the inner wall of the outer shell (5), one end of the cover body of the screen cover (4) is fixedly connected to a rocker (2), the rotating shaft (201) of the rocker (2) passes through the outer shell (5) and a sealed bearing is installed at the connection, the middle of the screen cover (4) and the outer shell (5) are penetrated and inlaid with a water pipe (3), the outlet end of the water pipe (3) is arranged in the screen cover (4), the feeding end of the water pipe (3) is arranged at the top of the outer shell (5), and the bottom of the shell of the outer shell (5) is connected and installed with a drain pipe (8); The feeding end of the water conduit (3) is connected to a funnel (6) installed thereon, and the opening end of the funnel (6) is higher than the top end of the shell of the outer shell (5); The screen cover (4) and the housing (5) are both arranged in a cylindrical shape, and the mesh number of the screen cover (4) is set to 40 meshes; The rocker (2) is arranged to be an L-shaped structure, and the bent plate rod body of the rocker (2) is arranged parallel to the rotation axis (201); The upper cover body of the screen cover (4) is hingedly mounted via a hinge, and the other end of the upper part of the screen cover (4) and the bottom cover body relative to the hinge are fastened via a fixing screw (9); The upper shell of the housing (5) is hingedly mounted via a hinge, and the other end of the upper shell (5) and the bottom shell relative to the hinge are fastened via a magnet buckle (7), and the upper shell (5) and the bottom shell are both glued with waterproof gaskets (10) on the edge connecting plates, and the bottom of the housing (5) is also fixedly connected to a base (1), and the base (1) is arranged in a triangular shape; The base (1) is configured to be corrosion-resistant steel, and the outer shell (5) is configured to be a lightweight stainless steel shell.

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