A fixed-point continuous sampling device for algae filaments

Abstract

The utility model relates to the field of biological sampling technology. A fixed-point continuous sampling device for algae filaments comprises a sampling net, the top of the sampling net is connected to a floating part, and the bottom of the sampling net is connected to a counterweight; the sampling net is in a cylindrical structure, and an inlet and a guide tail are respectively arranged on the opposite sides of the sampling net; a door body that can be opened inward in one direction is installed on the inlet; the guide tail is a vertically arranged guide plate, and the longitudinal section of the guide plate is a trapezoid, and the longitudinal length of the trapezoid increases from the side adjacent to the sampling net to the side away from the sampling net. The utility model facilitates the fixed-point setting of the sampling net through the combination of the counterweight and the floating part. The setting of the guide tail facilitates the change of the direction of the water flow. Under the action of the ocean current, the guide tail will make the inlet always face the direction of the ocean current, and the sampling net will filter and intercept the algae filaments in the water layer, so as to achieve the sampling purpose.

Description

Technical Field

[0001] The utility model relates to the technical field of biological sampling, in particular to an algae sampling device. Background Art

[0002] An algae collector (also known as an algae filament sampling device) is a device for collecting algae in water. It has the characteristics of being pollution-free, low-carbon, environmentally friendly, and easy to use.

[0003] Announcement No. CN203069397U discloses a net for quantitatively collecting phytoplankton in rivers, including a net body, a collector fixed at the rear end of the net body, a net mouth surrounded by a net mouth bracket at the front end of the net body, and a flow meter fixed on the net mouth bracket at the outer side of the net mouth. The net mouth of the device cannot be closed, and once the collection net tipped over, the collected sample is easily lost from the net mouth. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model provides a fixed-point continuous sampling device for algae filaments, which has solved at least one of the above-mentioned technical problems.

[0005] The technical solution of the utility model is: a fixed-point continuous sampling device for algae filaments, comprising a sampling net, characterized in that the top of the sampling net is connected to a floating piece, and the bottom of the sampling net is connected to a counterweight piece;

[0006] The sampling net is in a cylindrical structure, and opposite sides of the sampling net are respectively provided with an inlet and a guide tail;

[0007] The entrance is provided with a door body which can be opened inwardly in one direction;

[0008] The guide tail is a vertically arranged guide plate, and the longitudinal section of the guide plate is a trapezoid, and the longitudinal length of the trapezoid increases from the side adjacent to the sampling net to the side away from the sampling net.

[0009] The utility model facilitates the fixed-point setting of the sampling net by combining the counterweight and the floating part. The setting of the guide tail wing facilitates the change of the direction of the water flow. The guide tail wing will make the inlet always face the direction of the sea current under the action of the sea current, and the sampling net will filter and intercept the algae filaments in the water layer, so as to achieve the purpose of sampling.

[0010] Further preferably, a limiting column is provided on the outer side of the door body.

[0011] Prevent the door from opening outwards.

[0012] Further preferably, the outer diameter of the sampling net is 80 cm, and the axial length of the sampling net is 80 cm.

[0013] Further preferably, the sampling net comprises a hollow circular tube, the side wall of the hollow circular tube is provided with the inlet, and the hollow circular tube is provided with a water seepage hole;

[0014] The sampling net is also covered with a net cloth inside the hollow circular tube, and the aperture of the net cloth is smaller than the aperture of the water seepage hole.

[0015] Further preferably, the inner diameter of the water seepage hole is 3 mm;

[0016] The inner diameter of the mesh of the net is 0.505 mm.

[0017] Further preferably, one side of the inlet is hinged to the door body, and a water seepage hole is provided on the door body;

[0018] The net is cylindrical and is provided with a U-shaped cutout. The area of ​​the net located in the U-shaped cutout area covers the inner side of the door body.

[0019] Further preferably, the sampling net also includes an upper connecting end and a lower connecting end arranged up and down, and the upper connecting end and the lower connecting end are both installed with bearings, the upper connecting end is rotatably connected to the floating member through the bearing, and the lower connecting end is rotatably connected to the counterweight member through the bearing.

[0020] Facilitates the free rotation of the sampling net.

[0021] Alternatively, the sampling net further comprises an upper connecting end and a lower connecting end which are arranged up and down, the upper connecting end is fixedly connected to the floating member, and the lower connecting end is rotatably connected to the counterweight member via a bearing.

[0022] Further preferably, the longitudinal length of the guide tail adjacent to the sampling net side is 30 cm, the longitudinal length of the guide tail away from the sampling net side is 50 cm, and the length of the guide tail from the side adjacent to the sampling net side to the side away from the sampling net side is 20 cm.

[0023] Further preferably, the floating member is fixed to the top of the sampling net, or the floating member is connected to the top of the sampling net via a traction rope.

[0024] Further preferably, the counterweight is a fixed anchor, a chain or a counterweight block.

[0025] Compared with the prior art, the utility model has the following beneficial effects: the utility model can collect algae filament samples of a set water layer, the device has a relatively simple structure, is easy to operate, has a high reusability, and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1This is a structural schematic diagram of a specific embodiment 1 of the utility model;

[0027] Figure 2 This is a structural schematic diagram of a specific embodiment 1 of the utility model;

[0028] Figure 3 This is an exploded view of the sampling net of specific embodiment 2 of the present utility model.

[0029] In the figure, 1 is a sampling net, 2 is a floating part, 3 is a counterweight, 4 is a guide tail, 5 is a net, 6 is a bearing, 11 is an inlet, 12 is a door body, and 51 is a U-shaped shear. DETAILED DESCRIPTION

[0030] See also Figure 1 to Figure 2 , Specific embodiment 1, a fixed-point continuous sampling device for algae filaments, comprising a sampling net 1, the top of the sampling net 1 is connected to a floating member 2, and the bottom of the sampling net 1 is connected to a counterweight 3; the sampling net 1 is a cylindrical structure, and the opposite sides of the sampling net 1 are respectively provided with an inlet 11 and a guide tail 4; a door body that can be opened inward in one direction is installed on the inlet 11; the guide tail 4 is a vertically arranged guide plate, and the longitudinal cross-section of the guide plate is a trapezoid, and the longitudinal length of the trapezoid increases from the side adjacent to the sampling net 1 to the side away from the sampling net 1. The utility model facilitates the fixed-point setting of the sampling net 1 through the combination of the counterweight 3 and the floating member 2. The setting of the guide tail 4 is convenient to change with the direction of the water flow. Under the action of the sea current, the guide tail 4 will make the inlet always face the direction of the sea current, and the sampling net 1 will filter and intercept the algae filaments in the water layer, thereby achieving the sampling purpose.

[0031] A limit post can be arranged on the outside of the door body to prevent the door body from opening outwards.

[0032] The outer diameter of the sampling net 1 is 80 cm, and the axial length of the sampling net 1 is 80 cm.

[0033] The sampling net 1 includes an upper connecting end and a lower connecting end arranged up and down, and the upper connecting end and the lower connecting end are both installed with bearings 6. The upper connecting end is rotatably connected to the floating member 2 through the bearing 6, and the lower connecting end is rotatably connected to the counterweight member 3 through the bearing. It is convenient for the sampling net 1 to rotate freely. The upper connecting end and the lower connecting end are fixedly connected to the inner ring or outer ring of the bearing. Preferably, the upper connecting end and the lower connecting end are fixedly connected to the inner ring of the bearing. The outer ring of the bearing located at the upper connecting end is connected to the floating member. The outer ring of the bearing located at the lower connecting end is connected to the counterweight member.

[0034] Alternatively, the sampling net 1 includes an upper connecting end and a lower connecting end which are arranged above and below, the upper connecting end is fixedly connected to the floating member 2, and the lower connecting end is rotatably connected to the counterweight member 3 via a bearing.

[0035] The longitudinal length of the guide tail 4 adjacent to the sampling net 1 is 30 cm, the longitudinal length of the guide tail 4 away from the sampling net 1 is 50 cm, and the length of the guide tail from the side adjacent to the sampling net 1 to the side away from the sampling net 1 is 20 cm.

[0036] See also Figure 1 , the floating member 2 is fixed on the top of the sampling net 1. Alternatively, see Figure 2 The floating member 2 is connected to the top of the sampling net 1 through a traction rope.

[0037] The counterweight 3 is a fixed anchor, a chain or a counterweight.

[0038] See also Figure 3 Specific embodiment 2, based on specific embodiment 1, the sampling net 1 includes a hollow circular tube, the side wall of the hollow circular tube is provided with an inlet 11, and the hollow circular tube is provided with a water seepage hole; the sampling net is also wrapped with a net covering the hollow circular tube, and the pore size of the net is smaller than the pore size of the water seepage hole. Figure 3 The seepage holes and the mesh of the net are not shown. The inner diameter of the seepage holes is 3 mm; the inner diameter of the mesh of the net is 0.505 mm. One side of the inlet 11 is hinged to the door body 12, and a seepage hole is provided on the door body; the net 5 is cylindrical, and a U-shaped shear cut 51 is provided on the net 5, and the area of ​​the net 5 located in the area of ​​the U-shaped shear cut 51 is covered on the inner side of the door body. The upper connecting end of the sampling net is detachably connected or fixedly connected to the top of the hollow circular tube, and the lower connecting end of the sampling net is detachably connected or fixedly connected to the bottom of the hollow circular tube. The upper connecting end and the lower connecting end of the sampling net can be a hollow plate structure. The top and bottom of the net cover the upper connecting end and the lower connecting end respectively. The net is detachably connected to the upper connecting end, the lower connecting end and the hollow circular tube.

[0039] The above are only preferred implementations of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A fixed-point continuous sampling device for algae filaments, comprising a sampling net, characterized in that: The top of the sampling net is connected to a floating piece, and the bottom of the sampling net is connected to a counterweight piece; The sampling net is in a cylindrical structure, and opposite sides of the sampling net are respectively provided with an inlet and a guide tail; The entrance is provided with a door body which can be opened inwardly in one direction; The guide tail is a vertically arranged guide plate, and the longitudinal section of the guide plate is a trapezoid, and the longitudinal length of the trapezoid increases from the side adjacent to the sampling net to the side away from the sampling net.

2. The algae filament fixed-point continuous sampling device according to claim 1, characterized in that: A limiting column is arranged on the outer side of the door body.

3. The algae filament fixed-point continuous sampling device according to claim 1, characterized in that: The outer diameter of the sampling net is 80 cm, and the axial length of the sampling net is 80 cm.

4. The algae filament fixed-point continuous sampling device according to claim 1, characterized in that: The sampling net comprises a hollow circular tube, the side wall of the hollow circular tube is provided with the inlet, and the hollow circular tube is provided with a water seepage hole; The sampling net is also covered with a net cloth inside the hollow circular tube, and the aperture of the net cloth is smaller than the aperture of the water seepage hole.

5. The algae filament fixed-point continuous sampling device according to claim 4, characterized in that: The inner diameter of the water seepage hole is 3 mm; The inner diameter of the mesh of the net is 0.505 mm.

6. The algae filament fixed-point continuous sampling device according to claim 4, characterized in that: One side of the inlet is hinged to the door body, and a water seepage hole is provided on the door body; The net is cylindrical and is provided with a U-shaped cutout. The area of ​​the net located in the U-shaped cutout area covers the inner side of the door body.

7. The algae filament fixed-point continuous sampling device according to claim 1, characterized in that: The sampling net comprises an upper connecting end and a lower connecting end arranged up and down, the upper connecting end and the lower connecting end are both installed with bearings, the upper connecting end is rotatably connected to the floating member via the bearing, and the lower connecting end is rotatably connected to the counterweight member via the bearing.

8. The algae filament fixed-point continuous sampling device according to claim 1, characterized in that: The sampling net comprises an upper connecting end and a lower connecting end which are arranged up and down, the upper connecting end is fixedly connected to the floating member, and the lower connecting end is rotatably connected to the counterweight member via a bearing.

9. The algae filament fixed-point continuous sampling device according to claim 1, characterized in that: The longitudinal length of the guide tail adjacent to the sampling net is 30 cm, the longitudinal length of the guide tail away from the sampling net is 50 cm, and the length of the guide tail from the side adjacent to the sampling net to the side away from the sampling net is 20 cm.

10. The algae filament fixed-point continuous sampling device according to claim 1, characterized in that: The floating member is fixed to the top of the sampling net, or the floating member is connected to the top of the sampling net via a traction rope; The counterweight is a fixed anchor, a chain or a counterweight.

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