CN209333312U - It is a kind of for separating the sampling apparatus of zooplankter and phytoplankton - Google Patents

Abstract

The utility model discloses a sampling device for separating zooplankton and phytoplankton, which belongs to the technical field of aquatic biological sampling. The upper ends of the first collection net and the second collection net of the sampling device are both fixedly connected to the pipe body, the first collection net is located inside the second collection net, and the circles of the first circular arc plate and the second circular arc plate of the sealing device are The arc sides are all fixed on the inner wall of the pipe body through elastic ropes, the adjacent sides of the first arc plate and the second arc plate are hinged, and one end of the electric push rod is hinged with the first arc plate and the second arc plate The other end of the electric push rod is fixed on the support plate, and the support plate is fixedly connected with the pipe body through the connecting rod. In the sampling device of the utility model, the inlet of the pipe body is blocked by the sealing device before reaching the target position, and is opened for sampling after reaching the target position, thereby improving the sampling accuracy.

Description

A sampling device for separating zooplankton and phytoplankton

technical field

The utility model relates to the technical field of aquatic biological sampling, in particular to a sampling device for separating zooplankton and phytoplankton.

Background technique

Phytoplankton refers to the photoautotrophic plankton, all or part of its life cycle is suspended in the open water body, they lose their ability to move or can only do limited movement, can not resist the current and actively maintain their position, usually Also become planktonic algae.

Zooplankton is a general term for a class of heterotrophic invertebrates and chordate larvae that often float in the water and cannot produce organic matter by themselves. They are either completely incapable of swimming, or swim so weakly that they cannot move long distances and are not strong enough to resist the flow of water. Studying the species status of phytoplankton and zooplankton can provide basic reference information for rational utilization of water resources and protection of water ecological environment.

The sampling devices used to separate zooplankton and phytoplankton in the prior art basically realize the collection and separation of zooplankton and phytoplankton through double-layer collection nets, but when collecting samples, it is often necessary to select multiple different samples according to the water depth. The disadvantage of the traditional sampling method is that the sampling starts as soon as the collection network enters the water, that is, the sampling starts before the collection network reaches the sampling point, and the sampling accuracy is not high. high.

Utility model content

The purpose of this utility model is to overcome the problems in the prior art, and to provide a sampling device for separating zooplankton and phytoplankton.

The utility model provides a sampling device for separating zooplankton and phytoplankton, comprising: a pipe body, a first collection net, a second collection net, a sealing device, a first collection bottle and a second collection bottle, the first collection bottle and the second collection bottle. The upper ends of the first collection net and the second collection net are fixedly connected to the tube body, the first collection net is located inside the second collection net, the tails of the first collection net and the second collection net are both open, and the first collection bottle is sealed It is fixed at the opening at the tail of the first collection net, and the second collection bottle is sealed and fixed at the opening at the tail of the second collection net; the sealing device includes a first circular arc plate, a second circular arc plate, an electric push rod, and an elastic rope. and support plate, the arc edges of the first arc plate and the second arc plate are fixed on the inner wall of the pipe body through elastic ropes, and the adjacent edges of the first arc plate and the second arc plate are hinged, One end of the electric push rod is connected with the hinge of the first circular arc plate and the second circular arc plate, and the other end of the electric push rod is fixed on the support plate, and the support plate is fixedly connected with the inner wall of the pipe body through the connecting rod, and the electric push rod is connected to the inner wall of the pipe body. The push rod is electrically connected with the mobile power supply, the bottom of the support plate is provided with a waterproof box, and the mobile power supply is arranged in the waterproof box.

Preferably, an annular sealing ring is provided on the inner wall of the pipe, and the annular sealing ring is located above the connection between the elastic rope and the pipe body.

Preferably, the top of the pipe body is provided with a filter screen.

Preferably, the pipe body is also connected with a traction rope or a traction rod.

Preferably, the drawbar is composed of a plurality of mutually nested rod bodies, and a limit clip is provided between adjacent rod bodies.

Preferably, the first collection net is No. 13 plankton net, and the second collection net is No. 25 plankton net.

Preferably, the second collection bottle is provided with a vertical partition, the bottom of the second collection bottle is provided with a light-emitting element, the light-emitting element is located on one side of the vertical partition, and the light-emitting element is electrically connected to the mobile power supply.

Compared with the prior art, the beneficial effects of the present utility model are: the arc edges of the first circular arc plate and the second circular arc plate of the sealing device of the present utility model are both fixed on the inner wall of the pipe body through elastic ropes, and the first circular arc plate The adjacent sides of the circular arc plate and the second circular arc plate are hinged, and at the same time, the electric push rod exerts a pulling force and a pushing force on the hinge of the first circular arc plate and the second circular arc plate, and the first circular arc plate and the second circular arc plate. After the hinge of the plate is stressed, the angle between the first arc plate and the second arc plate will change, so as to realize the blocking and opening of the pipe body; the entrance of the pipe body before the sampling device reaches the target position It will be blocked by the sealing device, and will be opened for sampling after reaching the target position to improve the accuracy of sampling.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of the sealing device of the present invention;

3 is a schematic structural diagram of the second collection bottle of the present invention.

Description of reference numbers:

1. Tube body, 2. First collection net, 3. Second collection net, 4. Sealing device, 41. First arc plate, 42. Second arc plate, 43. Electric push rod, 44. Elastic rope , 45. Support plate, 5. First collection bottle, 6. Second collection bottle, 61. Vertical partition, 62. Light-emitting element.

Detailed ways

The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings 1-3, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

The utility model provides a sampling device for separating zooplankton and phytoplankton, comprising: a pipe body 1, a first collection net 2, a second collection net 3, a sealing device 4, a first collection bottle 5 and a second collection Bottle 6, the upper ends of the first collection net 2 and the second collection net 3 are fixedly connected with the tube body 1, the first collection net 2 is located inside the second collection net 3, the first collection net 2 and the second The tails of the collection nets 3 are all open, the first collection bottle 5 is sealed and fixed at the tail opening of the first collection net 2, and the second collection bottle 6 is sealed and fixed at the tail opening of the second collection net 3; the sealing device 4 includes The first arc plate 41, the second arc plate 42, the electric push rod 43, the elastic rope 44 and the support plate 45, the arc edges of the first arc plate 41 and the second arc plate 42 are all connected with the elastic rope 44 is fixed on the inner wall of the pipe body 1, the adjacent sides of the first arc plate 41 and the second arc plate 42 are hinged, and one end of the electric push rod 43 is connected to the first arc plate 41 and the second arc plate 42. 42 is connected at the hinge, the other end of the electric push rod 43 is fixed on the support plate 45, the support plate 45 is fixedly connected with the inner wall of the pipe body 1 through the connecting rod, the electric push rod 43 is electrically connected with the mobile power supply, the support plate 45 There is a waterproof box at the bottom, and the mobile power supply is arranged in the waterproof box.

Using the above technical solution, the pipe body 1 is used as the entrance for collecting plankton. During the collection, the plankton enters the first collection net 2 and the second collection net 3 through the pipe body 1, and then enters the first collection bottle 5 and the second collection bottle 6. Since the tube body 1 is provided with a sealing device 4, the tube body 1 will be blocked before the sampling device reaches the target position, and the tube body 1 will be opened after reaching the target position. The principle of the sealing device 4 is as follows: first The arc edges of the arc plate 41 and the second arc plate 42 are fixed on the inner wall of the pipe body 1 through the elastic rope 44, and the adjacent sides of the first arc plate 41 and the second arc plate 42 are hinged, and the hinge can be The hinge hinge is adopted, and at the same time, the electric push rod 43 exerts a pulling force and a pushing force on the hinge of the first arc plate 41 and the second arc plate 42, and the first arc plate 41 and the second arc plate 42 are hinged. After being subjected to force, the angle between the first arc plate 41 and the second arc plate 42 will change, so as to realize the blocking and opening of the pipe body 1. The control switch of the electric push rod 43 can be set at a convenient location for sampling. On the tow bar operated by the operator, a wireless remote control can also be used to control the electric push rod 43, and the electric push rod 43 is an IP66 waterproof electric push rod.

The meshes of the first collection net 2 and the second collection net 3 are different, so the phytoplankton are collected in the first collection net 2, and then collected into the first collection bottle 5, and the zooplankton enter through the first collection net 2 The second collection net 3 enters into the second collection bottle 6, and the first collection bottle 5 and the first collection net 2 are provided with a fastening member at the tail, so that the two are connected tightly, and the second collection bottle 6 is connected to the second collection net 2 The opening at the tail of the collection net 3 is also provided with a fastening piece to fasten the two connections.

Further, the inner wall of the pipe body 1 is provided with an annular sealing ring, and the annular sealing ring is located above the connection between the elastic rope 44 and the pipe body 1 . The purpose is that when the first circular arc plate 41 and the second circular arc plate 42 form a plane When used for sealing, the sealing ring can be closely matched with the arc edges of the first arc plate 41 and the second arc plate 42 to place plankton at non-sampling points into the collection device.

Further, the top of the pipe body 1 is provided with a filter screen.

Further, the tube body 1 is also connected with a traction rope or a traction rod. It should be noted that the bottom of the second collection net 3 is also connected with a counterweight, so as to make the collection device enter the target depth for sampling.

Further, the traction rod is composed of a plurality of rod bodies which are nested in each other, and a limit clip is arranged between the adjacent rod bodies.

Further, the first collection net 2 is No. 13 plankton net, and the second collection net 3 is No. 25 plankton net.

Further, the second collection bottle 6 is provided with a vertical partition 61, the bottom of the second collection bottle 6 is provided with a light-emitting element 62, the light-emitting element 62 is located on one side of the vertical partition 61, and the light-emitting element 62 is connected with the moving The power supply is electrically connected, and the light-emitting element 62 has a waterproof function.

The circular arc sides of the first circular arc plate and the second circular arc plate of the sealing device of the utility model are both fixed on the inner wall of the pipe body through elastic ropes, and the adjacent sides of the first circular arc plate and the second circular arc plate are hinged. The hinge can be in the form of hinge hinge. At the same time, the electric push rod is used to exert pulling force and push force on the hinge of the first arc plate and the second arc plate, and the hinge of the first arc plate and the second arc plate is subjected to After the force, the angle between the first arc plate and the second arc plate will change, so as to realize the blocking and opening of the tube body; so that the inlet of the tube body will be blocked by the sealing device before the sampling device reaches the target position. , and turn it on for sampling after reaching the target position to improve the sampling accuracy.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (7)

1. A sampling device for separating zooplankton and phytoplankton, characterized in that, comprising: a pipe body (1), a first collection net (2), a second collection net (3), a sealing device (4), The first collection bottle (5) and the second collection bottle (6), the upper ends of the first collection net (2) and the second collection net (3) are fixedly connected to the pipe body (1), and the first collection net ( 2) Located inside the second collection net (3), the tails of the first collection net (2) and the second collection net (3) are both open, and the first collection bottle (5) is sealed and fixed on the first collection net ( 2), the second collection bottle (6) is sealed and fixed at the tail opening of the second collection net (3); the sealing device (4) includes a first circular arc plate (41), a second circular arc A plate (42), an electric push rod (43), an elastic rope (44) and a support plate (45), the arc edges of the first arc plate (41) and the second arc plate (42) are all elastic The rope (44) is fixed on the inner wall of the pipe body (1), the adjacent sides of the first circular arc plate (41) and the second circular arc plate (42) are hinged, and one end of the electric push rod (43) is connected to the A circular arc plate (41) is connected with the hinge of the second circular arc plate (42), the other end of the electric push rod (43) is fixed on the support plate (45), and the support plate (45) is connected to the pipe body through the connecting rod The inner wall of (1) is fixedly connected, the electric push rod (43) is electrically connected with the mobile power supply, the bottom of the support plate (45) is provided with a waterproof box, and the mobile power supply is arranged in the waterproof box. 2. The sampling device for separating zooplankton and phytoplankton according to claim 1, characterized in that, an annular sealing ring is provided on the inner wall of the pipe body (1), and the annular sealing ring is located on the elastic rope (44) Above the junction with the pipe body (1). 3. The sampling device for separating zooplankton and phytoplankton according to claim 1, characterized in that, a filter screen is provided on the top of the pipe body (1). 4. The sampling device for separating zooplankton and phytoplankton according to claim 1, characterized in that, the pipe body (1) is further connected with a traction rope or a traction rod. 5 . The sampling device for separating zooplankton and phytoplankton according to claim 4 , wherein the traction rod is composed of a plurality of rod bodies which are nested in each other, and a limit clip is provided between adjacent rod bodies. 6 . 6. The sampling device for separating zooplankton and phytoplankton according to claim 1, wherein the first collection net (2) is No. 13 plankton net, and the second collection net (3) is 25 Plankton Net. 7. The sampling device for separating zooplankton and phytoplankton according to claim 1, wherein a vertical partition (61) is provided in the second collection bottle (6), and the second collection bottle (6) is provided with a vertical partition (61). The bottom of (6) is provided with a light-emitting element (62), the light-emitting element (62) is located on one side of the vertical partition plate (61), and the light-emitting element (62) is electrically connected to the mobile power supply.