Assembled plankton net

Abstract

The utility model relates to an assembled plankton net, which aims to solve the technical problems that the existing plankton net cannot be replaced after aging or hole breaking, and a sample is easy to run off due to the fact that a valve is forgotten to be closed manually, and comprises a biological net body, the inner wall of an inlet of the biological net body is fixedly connected with a net front fixing iron ring, and the net front fixing iron ring is fixedly connected with a net rear fixing iron ring. An outlet of the biological net body is connected with a connecting disc in a sealed mode, the connecting disc is connected with a bottom disc through a rotating disc, sealing grooves are formed in the bottom of the connecting disc and the bottom of the rotating disc, sliding grooves are formed in the peripheries of the sealing grooves, sealing rings are fixedly connected to the top ends of the rotating disc and the bottom disc, and three sliding columns are installed on the peripheries of the sealing rings; the plankton net comprises a base plate, a rotating disc is arranged on the base plate, three filtering pieces are arranged on the rotating disc, a sample collector is connected to the bottom end of the base plate in a sealed mode, a connecting plate is welded to the outer portion of the sample collector, the plankton net can be flexibly assembled and maintained, and various operability of the plankton net is improved.

Description

Technical Field

[0001] The utility model relates to the field of plankton nets, in particular to an assembled plankton net. Background Art

[0002] At present, zooplankton in rivers, lakes and ponds are collected by plankton nets, but generally one type of net can only collect a certain type of zooplankton, such as 13# plankton net mainly collects cladocerans and copepods, and 25# plankton net collects rotifers, etc.

[0003] In the process of realizing the utility model, the inventor found that there are at least the following problems in the prior art that have not been solved: during use, the traditional plankton net is used for a long time, the mesh is aged or has holes, and the entire net can no longer collect zooplankton, and the existing plankton net generally uses a ball valve to switch the sample after collecting the sample to flow into the sample bottle. During the sampling work, the sample collected with great effort often flows away because the ball valve is forgotten to be closed, which reduces the work efficiency. Therefore, it is necessary to design a new technical solution to solve it. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art, meet practical needs, and provide an assembled plankton net to solve the technical problems that the current plankton net cannot be replaced after aging or holes occur and the sample is easily lost due to human forgetting to close the valve.

[0005] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: to design an assembled plankton net, including a biological net body, the inner wall of the inlet of the biological net body is fixedly connected with a fixed iron ring in front of the net, the outlet of the biological net body is sealed and connected with a connecting plate, the connecting plate is connected with a chassis through a turntable, the bottom of the connecting plate and the turntable are both provided with sealing grooves, the periphery of the sealing grooves are both provided with sliding grooves, the tops of the turntable and the chassis are fixedly connected with sealing rings, three sliding columns are installed on the periphery of the sealing ring, three filter plates are provided on the turntable, the bottom end of the chassis is sealed and connected with a sample collector, the outside of the sample collector is welded with a connecting plate, the inside of the connecting plate is slidably connected with a pressing column, and the pressing column is connected with a sealing cover through a reset spring.

[0006] Preferably, the bottoms of the connecting plate and the bottom of the base plate are both provided with through holes of the same size.

[0007] Preferably, the size of the sliding column matches the size of the sliding groove and is slidably connected to the inner wall thereof, and the size of the sealing ring matches the size of the sealing groove and is sealingly connected to the inner wall thereof.

[0008] Preferably, the feed end of the sample collector corresponds to the position of the through hole and is sealed and connected to the inside thereof.

[0009] Preferably, the return spring is sleeved on the outside of the pressing column and is slidably connected to the outside thereof, one end of the return spring is fixedly connected to the bottom surface of the connecting plate, and the other end of the return spring is fixedly connected to the surface of the sealing cover.

[0010] Preferably, the three filter sheets respectively use mesh size 10, mesh size 13 and mesh size 15.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The plankton net designed by the utility model can be flexibly assembled and maintained, thereby improving the multiple operability of the tool.

[0013] 2. The sample collector on the plankton net of the utility model is a rebound switch, which can automatically rebound after being pressed to take the sample, thereby avoiding the situation where the ordinary plankton net is forgotten to be closed after taking the sample.

[0014] 2. The plankton net designed by the utility model has high cost performance, is easy to use and carry, and plays a certain role in improving the efficiency of sample collection. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 It is an exploded view of the utility model;

[0017] Figure 3 It is a bottom view of the utility model;

[0018] Figure 4 It is a schematic diagram of the sealing groove and the sliding groove of the utility model;

[0019] Figure 5 It is a schematic diagram of the sealing ring and the sliding column of the utility model;

[0020] In the figure: 1, biological net body; 11, iron ring for fixing the net in front; 12, connecting plate; 13, sealing groove; 14, slide groove; 15, sealing ring; 16, slide column; 17, filter plate; 18, turntable; 19, chassis;

[0021] 2. Sample collector; 21. Connecting plate; 22. Pressing column; 23. Return spring; 24. Sealing cover;

[0022] 3. Through hole. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0024] Example 1: An assembled plankton net, see Figures 1 to 5 , including a biological net body 1, the inner wall of the inlet of the biological net body 1 is fixedly connected with a front fixed iron ring 11 of the net, the outlet of the biological net body 1 is sealed and connected with a connecting plate 12, the connecting plate 12 is connected with a bottom plate 19 through a turntable 18, the bottom of the connecting plate 12 and the turntable 18 are both provided with a sealing groove 13, the periphery of the sealing groove 13 is provided with a slide groove 14, the top of the turntable 18 and the bottom plate 19 are both fixedly connected with a sealing ring 15, and three sliding columns 16 are installed on the periphery of the sealing ring 15, the size of the sliding column 16 is consistent with the size of the slide groove 14, and is slidably connected with the inner wall thereof, the size of the sealing ring 15 is consistent with the size of the sealing groove 13, and is sealed with the inner wall thereof, and the turntable 18 is provided with a sealing groove 13. There are three filter plates 17. When the plankton net is in use, first hold the bottom plate 19 and the connecting plate 12 by hand, and then rotate a filter plate 17 on the turntable 18 to the position of the through hole 3 between the connecting plate 12 and the bottom plate 19. At this time, the slide post 16 and the sealing ring 15 on the turntable 18 will rotate in the slide groove 14 and the sealing groove 13, and at the same time, the slide groove 14 and the sealing groove 13 at the bottom of the turntable 18 will rotate outside the slide post 16 and the sealing ring 15 of the bottom plate 19, so as to adjust the position of the filter plate 17, and then let the plankton sample flow into the through hole 3 through the biological net body 1, and then be filtered by the filter plate 17, and finally flow into the sample collector 2 through the through hole 3 for collection.

[0025] It is worth noting that see Figure 4 and Figure 5 The bottom of the connecting plate 12 and the bottom of the bottom plate 19 are both provided with through holes 3 of the same size. The bottom end of the bottom plate 19 is sealed and connected to a sample collector 2. The feed end of the sample collector 2 corresponds to the position of the through hole 3 and is sealed and connected to the inside thereof, so that the sample in the through hole 3 can flow into the sample collector 2 for collection.

[0026] It is worth noting that see Figure 4A connecting plate 21 is welded to the outside of the sample collector 2, and a pressing column 22 is slidably connected to the inside of the connecting plate 21. The pressing column 22 is connected to a sealing cover 24 through a reset spring 23. The reset spring 23 is sleeved on the outside of the pressing column 22 and is slidably connected to the outside of the pressing column 22. One end of the reset spring 23 is fixedly connected to the bottom surface of the connecting plate 21, and the other end of the reset spring 23 is fixedly connected to the surface of the sealing cover 24. When the sample in the sample collector 2 needs to be taken out, the operator can directly squeeze the pressing column 22. At this time, the pressing column 22 will drive the sealing cover 24 to move downward. During this process, the sealing cover 24 will pull the reset spring 23. When the operator releases the pressing column 22, the reset spring 23 will drive the sealing cover 24 to reset, avoiding the situation where the ordinary plankton net is forgotten to be closed after taking the sample.

[0027] It is worth mentioning that see Figure 4 The three filter sheets 17 respectively use meshes of No. 10, No. 13 and No. 15, which facilitate the plankton net to sample plankton of different sizes.

[0028] In addition, the components designed in the present invention are all universal standard parts or components known to technical personnel in the 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 the field, and there is no need to elaborate. The content protected by the present invention does not involve improvements to internal structures and methods.

[0029] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. An assembled plankton net, comprising a biological net body (1), characterized in that: The inner wall of the inlet of the biological net body (1) is fixedly connected to a front fixed iron ring (11); the outlet of the biological net body (1) is sealedly connected to a connecting plate (12); the connecting plate (12) is connected to a bottom plate (19) via a rotating plate (18); the bottoms of the connecting plate (12) and the rotating plate (18) are both provided with sealing grooves (13); the peripheries of the sealing grooves (13) are both provided with sliding grooves (14); the tops of the rotating plate (18) and the bottom plate (19) are both fixedly connected to each other. A sealing ring (15) is connected, and three sliding columns (16) are installed on the periphery of the sealing ring (15). Three filter plates (17) are opened on the turntable (18). The bottom end of the base plate (19) is sealed and connected to a sample collector (2). A connecting plate (21) is welded to the outside of the sample collector (2). A pressing column (22) is slidably connected inside the connecting plate (21). The pressing column (22) is connected to a sealing cover (24) via a return spring (23).

2. An assembled plankton net as claimed in claim 1, characterized in that: The bottoms of the connecting plate (12) and the bottom plate (19) are both provided with through holes (3) of the same size.

3. The assembled plankton net according to claim 1, characterized in that: The size of the sliding column (16) matches the size of the sliding groove (14) and is slidably connected to the inner wall thereof; the size of the sealing ring (15) matches the size of the sealing groove (13) and is sealingly connected to the inner wall thereof.

4. The assembled plankton net according to claim 2, characterized in that: The feed end of the sample collector (2) corresponds to the position of the through hole (3) and is sealedly connected to the inside thereof.

5. The assembled plankton net according to claim 1, characterized in that: The return spring (23) is sleeved on the outside of the pressing column (22) and is slidably connected to the outside thereof; one end of the return spring (23) is fixedly connected to the bottom surface of the connecting plate (21), and the other end of the return spring (23) is fixedly connected to the surface of the sealing cover (24).

6. The assembled plankton net according to claim 1, characterized in that: The three filter sheets (17) respectively adopt mesh size 10, mesh size 13 and mesh size 15.

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