Benthonic animal sample screening and washing steel sieve convenient to operate

Abstract

The utility model relates to a benthonic animal sample screening and washing steel screen convenient to operate, and aims to solve the problems that when a current screening and washing steel screen is used for screening and washing benthonic organisms and bottom mud with small particles or large viscidity, screen holes of the steel screen are prone to being blocked, especially when samples containing many fine impurities are treated, the screen holes need to be frequently cleaned, and the screening and washing efficiency is high. The device comprises a box body, limiting rings are fixedly connected to the two sides of the top of the box body, a steel screen drum is rotationally connected between the two limiting rings through a bearing, a driven gear ring is fixedly connected to the middle of the outer side of the steel screen drum, and a driving motor is installed on one side of the top of the box body; the benthonic animal sample screening device has the advantages that the screening holes can be automatically cleaned in the screening and washing process of the steel screen drum, frequent cleaning by personnel is not needed, trouble is saved, and the benthonic animal sample screening efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the field of benthic animal sample screening and washing, in particular to a benthic animal sample screening and washing steel sieve which is easy to operate. Background Art

[0002] Benthic animals refer to aquatic animals that spend all or most of their life cycle on the bottom of a body of water and are a crucial component of aquatic ecosystems. Individuals that cannot pass through a 500μm pore size sieve are generally referred to as macrobenthos, and their dominant groups primarily include aquatic oligochaetes, mollusks, and aquatic insects. Aquatic biological surveys and water environment monitoring often involve the collection of large numbers of macrobenthos samples. Sediment samples are typically collected using a Petersen sampler, with two to three samples collected at each sampling point. The sediment samples are then packaged and taken back to the laboratory for washing and separation of the macrobenthos. A common method for separating macrobenthos from sediment is to place the sediment specimen on a circular stainless steel sieve.

[0003] When traditional steel sieves are used to screen benthic organisms and bottom mud with smaller particles or higher viscosity, the sieve holes are easily clogged. Especially when processing samples containing more fine impurities, the sieve holes may need to be cleaned frequently, which is more troublesome and affects the screening efficiency. Therefore, new technical solutions need to be designed to solve this problem. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, meet actual needs, and provide a steel sieve for screening and washing benthic animal samples that is easy to operate, so as to solve the technical problem that the sieve holes of the current steel sieve are easily clogged when screening some benthic organisms and bottom mud with smaller particles or higher viscosity, especially when processing samples containing more fine impurities, the sieve holes may need to be cleaned frequently, which is more troublesome and affects the screening efficiency.

[0005] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is as follows: a steel sieve for screening and washing benthic animal samples that is easy to operate is designed, comprising a box body, both sides of the top of the box body are fixedly connected to limit rings, a steel sieve cylinder is rotatably connected between the two limit rings through bearings, a driven gear ring is fixedly connected to the middle part of the outer side of the steel sieve cylinder, a driving motor is installed on one side of the top of the box body, a driving gear is installed on the driving end of the driving motor, and the driving gear is meshed with the driven gear ring;

[0006] A water inlet pipe is provided above the steel screen drum, one end of the water inlet pipe is connected to an upper V-shaped cover, notches are provided on both sides of the middle part of the upper V-shaped cover, the bottom of the upper V-shaped cover is fitted with the outer surface of the steel screen drum, and the driven gear ring is placed in the notch, a conduit is installed in the inner cavity of the upper V-shaped cover, the conduit is connected to the water inlet pipe, and the end of the conduit close to the steel screen drum is connected to a plurality of high-pressure nozzles.

[0007] Preferably, a first L-shaped frame is installed at one end of the box body, an L-shaped sewage pipe is installed on the top of the first L-shaped frame, one end of the L-shaped sewage pipe is placed in the inner cavity of the steel screen cylinder, and the L-shaped sewage pipe in the steel screen cylinder is connected to a lower V-shaped cover, and one open end of the lower V-shaped cover is attached to the top of the inner cavity of the steel screen cylinder.

[0008] Preferably, a second L-shaped frame is installed at one end of the box away from the first L-shaped frame, a Z-shaped connecting rod is installed on the second L-shaped frame, the Z-shaped connecting rod is placed in a steel sieve cylinder, and a plurality of stirring rods are installed at the bottom of the Z-shaped connecting rod in the steel sieve cylinder.

[0009] Preferably, baffles are fixedly connected to the openings at both ends of the steel screen drum, and circular holes are opened in the middle of the two baffles.

[0010] Preferably, fixing rings are fixedly connected to the outer sides of both ends of the steel screen drum, and the two fixing rings are respectively placed on the outer sides of the two limiting rings.

[0011] Preferably, the lower V-shaped cover and the upper V-shaped cover are both fixedly connected with sealing gaskets at one end close to the steel screen drum.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The utility model combines structures such as a steel sieve drum, a driving motor, a rotating gear, a driven gear ring, an upper V-shaped cover, a conduit, a water inlet pipe and a high-pressure nozzle to add the collected benthic animals into the steel sieve drum from one end, and then starts the driving motor to drive the active gear to rotate, and cooperates with the driven gear ring to drive the steel sieve drum to rotate for screening and washing, and then connects the water inlet pipe with the water source, so that high-pressure water flow is sprayed through the high-pressure nozzle. When the steel sieve drum rotates for screening and washing, the high-pressure water flow can backwash the clogged sieve holes of the steel sieve drum, so that the sieve holes can be automatically cleaned during the screening and washing process of the steel sieve drum, without the need for frequent cleaning by personnel, which is more troublesome and further improves the efficiency of screening benthic animal samples.

[0014] 2. The utility model combines the lower V-shaped cover and the L-shaped sewage pipe. When the steel screen drum rotates for screening, one side of the lower V-shaped cover can clean the benthic animals adhering to the inner wall of the steel screen drum, and then the dirt and water cleaned in the sieve holes on the steel screen drum are received by the lower V-shaped cover, and then discharged from the steel screen drum through the L-shaped sewage pipe, thereby preventing some benthic organisms and bottom mud with smaller particles or higher viscosity from remaining in the steel screen drum and clogging the sieve holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a cross-sectional view of the overall structure of the utility model;

[0017] Figure 3 This is an enlarged view of point A of the present utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the upper V-shaped cover of the present utility model;

[0019] In the figure: 1. Box body; 11. Limiting ring; 12. Steel screen drum; 13. Fixed ring; 2. Drive motor; 21. Driving gear; 22. Driven gear ring; 3. Upper V-shaped cover; 31. Water inlet pipe; 32. Notch; 33. Conduit; 34. High-pressure nozzle; 4. Drain pipe; 41. Lower V-shaped cover; 5. Baffle; 51. Round hole; 6. Second L-shaped frame; 61. Z-shaped connecting rod; 62. Stirring rod; 7. Sealing gasket. DETAILED DESCRIPTION

[0020] The present invention is further described below with reference to the accompanying drawings and embodiments:

[0021] Example 1: A convenient steel sieve for washing benthic samples, see Figures 1 to 4, including a box body 1, both sides of the top of the box body 1 are fixedly connected to the limit ring 11, the two limit rings 11 are rotatably connected with a steel screen drum 12 through a bearing, the middle part of the outer side of the steel screen drum 12 is fixedly connected with a driven gear ring 22, a driving motor 2 is installed on one side of the top of the box body 1, and a driving gear 21 is installed on the driving end of the driving motor 2, and the driving gear 21 is meshed with the driven gear ring 22; an inlet pipe 31 is provided above the steel screen drum 12, one end of the inlet pipe 31 is connected with an upper V-shaped cover 3, and notches 32 are provided on both sides of the middle part of the upper V-shaped cover 3, the bottom of the upper V-shaped cover 3 is fitted with the outer surface of the steel screen drum 12, and the driven gear ring 22 is placed in the notch 32, and a conduit 33 is installed in the inner cavity of the upper V-shaped cover 3. The pipe 33 is connected to the water inlet pipe 31, and one end of the conduit 33 close to the steel sieve drum 12 is connected to a plurality of high-pressure nozzles 34. During operation, the collected benthic animals are added into the steel sieve drum 12 from one end of the steel sieve drum 12, and then the drive motor 2 is started to drive the driving gear 21 to rotate, and the driven gear ring 22 is cooperated to drive the steel sieve drum 12 to rotate for screening and washing, and then the water inlet pipe 31 is connected to the water source, so that high-pressure water flow is sprayed through the high-pressure nozzle 34. When the steel sieve drum 12 rotates for screening and washing, the high-pressure water flow can backwash the clogged sieve holes of the steel sieve drum 12, so that the sieve holes can be automatically cleaned during the screening and washing of the steel sieve drum 12, without the need for frequent cleaning by personnel, which is more troublesome and further improves the efficiency of screening benthic animal samples.

[0022] For details, see Figure 2 A first L-shaped frame is installed at one end of the box body 1, and an L-shaped sewage pipe 4 is installed on the top of the first L-shaped frame. One end of the L-shaped sewage pipe 4 is placed in the inner cavity of the steel screen drum 12, and the L-shaped sewage pipe 4 in the steel screen drum 12 is connected to a lower V-shaped cover 41. One end of the opening of the lower V-shaped cover 41 is attached to the top of the inner cavity of the steel screen drum 12. When the steel screen drum 12 rotates to screen, one side of the lower V-shaped cover 41 can clean the benthic animals adhering to the inner wall of the steel screen drum 12, and then the dirt and water cleaned in the sieve holes on the steel screen drum 12 are received by the lower V-shaped cover 41, and then discharged from the steel screen drum 12 through the L-shaped sewage pipe 4, thereby preventing some benthic organisms and bottom mud with smaller particles or higher viscosity from existing in the steel screen drum 12 and clogging the sieve holes.

[0023] For further information, see Figure 1 and Figure 2 A second L-shaped frame 6 is installed at one end of the box body 1 away from the first L-shaped frame, and a Z-shaped connecting rod 61 is installed on the second L-shaped frame 6. The Z-shaped connecting rod 61 is placed in the steel sieve cylinder 12. A plurality of stirring rods 62 are installed at the bottom of the Z-shaped connecting rod 61 in the steel sieve cylinder 12. The Z-shaped connecting rod 61 is fixed by the first L-shaped frame, so that the stirring rod 62 is stationary relative to the steel sieve cylinder 12, so that the steel sieve cylinder 12 stirs the benthic animal sample when screening the benthic animals, thereby improving the effect of screening the benthic animals.

[0024] It is worth noting that, see Figure 1 The openings at both ends of the steel sieve cylinder 12 are fixedly connected with baffles 5, and circular holes 51 are opened in the middle of the two baffles 5. The baffles 5 can effectively prevent the benthic animal samples in the steel sieve cylinder 12 from leaking from both ends of the steel sieve cylinder 12 during screening.

[0025] It is worth noting that see Figure 2 The outer sides of both ends of the steel sieve drum 12 are fixedly connected with fixing rings 13, and the two fixing rings 13 are respectively placed on the outer sides of the two limiting rings 11. The steel sieve drum 12 is limited between the two sides of the limiting rings 11 by the fixing rings 13, thereby improving the stability of the steel sieve drum 12 rotating in the two limiting rings 11.

[0026] It is worth mentioning that see Figure 4 The lower V-shaped cover 41 and the upper V-shaped cover 3 are fixedly connected to one end of the steel screen drum 12 with a sealing gasket 7, which is used to improve the sealing performance of the connection between the lower V-shaped cover 41 and the upper V-shaped cover 3 and the inner and outer sides of the steel screen drum 12.

[0027] In addition, the components designed in this utility model are all universal standard parts or components known to technical personnel in this field. Their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods. They can be fully implemented by technical personnel in this field. Needless to say, the content protected by this utility model does not involve improvements to internal structures and methods.

[0028] The embodiments disclosed in the present invention are preferred embodiments, but are not limited to them. Ordinary technicians in this field can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. As long as they do not deviate from the spirit of the present invention, they are all within the scope of protection of the present invention.

Claims

1. A convenient-to-operate steel sieve for washing benthic animal samples, comprising a housing (1), characterized in that: Limiting rings (11) are fixedly connected to both sides of the top of the box body (1), a steel screen drum (12) is rotatably connected between the two limiting rings (11) via bearings, a driven gear ring (22) is fixedly connected to the middle of the outer side of the steel screen drum (12), a driving motor (2) is installed on one side of the top of the box body (1), a driving gear (21) is installed on the driving end of the driving motor (2), and the driving gear (21) is meshed with the driven gear ring (22); A water inlet pipe (31) is provided above the steel sieve drum (12), one end of the water inlet pipe (31) is connected to an upper V-shaped cover (3), notches (32) are provided on both sides of the middle of the upper V-shaped cover (3), the bottom of the upper V-shaped cover (3) is fitted with the outer surface of the steel sieve drum (12), and the driven gear ring (22) is placed in the notch (32), a conduit (33) is installed in the inner cavity of the upper V-shaped cover (3), the conduit (33) is connected to the water inlet pipe (31), and one end of the conduit (33) close to the steel sieve drum (12) is connected to a plurality of high-pressure nozzles (34).

2. The easy-to-operate steel sieve for washing benthic animal samples according to claim 1, characterized in that: A first L-shaped frame is installed at one end of the box body (1), an L-shaped sewage pipe (4) is installed on the top of the first L-shaped frame, one end of the L-shaped sewage pipe (4) is placed in the inner cavity of the steel sieve cylinder (12), and the L-shaped sewage pipe (4) in the steel sieve cylinder (12) is connected to a lower V-shaped cover (41), and an open end of the lower V-shaped cover (41) is attached to the top of the inner cavity of the steel sieve cylinder (12).

3. The easy-to-operate steel sieve for washing benthic animal samples according to claim 2, characterized in that: A second L-shaped frame (6) is installed at one end of the box body (1) away from the first L-shaped frame, a Z-shaped connecting rod (61) is installed on the second L-shaped frame (6), the Z-shaped connecting rod (61) is placed in the steel sieve cylinder (12), and a plurality of stirring rods (62) are installed at the bottom of the Z-shaped connecting rod (61) in the steel sieve cylinder (12).

4. The easy-to-operate steel sieve for washing benthic animal samples according to claim 1, characterized in that: Baffles (5) are fixedly connected to the openings at both ends of the steel screen drum (12), and circular holes (51) are opened in the middle of the two baffles (5).

5. The easy-to-operate steel sieve for washing benthic animal samples according to claim 1, characterized in that: The outer sides of both ends of the steel screen drum (12) are fixedly connected with fixing rings (13), and the two fixing rings (13) are respectively placed on the outer sides of the two limiting rings (11).

6. The easy-to-operate steel sieve for washing benthic animal samples as claimed in claim 2, characterized in that: The lower V-shaped cover (41) and the upper V-shaped cover (3) are both fixedly connected with a sealing gasket (7) at one end close to the steel screen drum (12).

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