Anti-blocking filter screen structure of zooplankton collector

Abstract

The utility model relates to an anti-blocking filter screen structure of a zooplankter collector, and aims to solve the problems that the collection efficiency is low and a sample is easy to damage due to the fact that a screen of an existing zooplankter collector is easy to block. The device comprises a collection tank, a filter ball is movably connected in the tank through a reset spring, an elastic screen arranged at a tank opening is arranged on one side of the filter ball, and a sampling end is arranged at the other end of the tank. Movable grooves corresponding to the reset springs are formed in the collecting tank, the two ends of the filtering ball are connected with limiting plates corresponding to the movable grooves, and the limiting plates are fixedly connected with the reset springs. A clamping plate fixedly connected with the collecting tank is sleeved outside the elastic screen; an annular flow guide groove and an opening communicated with the annular flow guide groove are formed in the clamping plate. The sampling end is connected with the collecting tank through a locking hoop, and a filter screen structure is arranged on the sampling end. During use, water flow drives the device, and the filter ball moves under the action of the spring, so that the elastic screen is deformed to filter impurities and prevent blockage; when no water flow exists, the filter balls are far away from the screen, and impurities are cleaned by water flow.

Description

Technical Field

[0001] This utility model provides a filter structure, belonging to the field of zooplankton collection technology, and particularly relates to an anti-clogging filter structure for a zooplankton collector. Background Technology

[0002] Zooplankton collection refers to the process of obtaining individual or grouped zooplankton from water bodies using specific tools and techniques. These zooplankton are tiny animals that live a planktonic life in water, such as rotifers, cladocerans, and copepods. Their main functions are as follows: First, they provide basic data for marine or freshwater ecosystem research, helping scientists understand the species composition, population distribution, seasonal variations, and other ecological characteristics of zooplankton, thereby revealing the structure and function of the entire ecosystem. Second, they serve as an important basis for fishery resource assessment, as the larvae of many economically important fish species rely on zooplankton for food, and the biomass and community structure of zooplankton directly affect the replenishment and sustainability of fishery resources. Third, they can be used for environmental monitoring. Zooplankton are highly sensitive to changes in the aquatic environment; abnormal changes in their physiological state and population size can reflect environmental problems such as the degree of water pollution and eutrophication, providing a reference for the assessment and protection of water environmental quality.

[0003] Existing devices for phytoplankton collection typically consist of a net, frame, and collection container. During collection, water carries phytoplankton through the net, where they are intercepted and collected in the container. However, this net structure is prone to clogging because the water may contain impurities such as sediment, large organic debris, etc. These impurities tend to adhere to the net's pores as water flows through it. As collection progresses, the accumulation of these impurities reduces the net's effective filtration area, slowing the water flow and lowering collection efficiency. Furthermore, severe clogging may necessitate frequent stops to clean the net, increasing labor intensity and time costs. Improper cleaning can also lead to the loss or damage of some collected phytoplankton samples, affecting the quality and integrity of the collection. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this application provides an anti-clogging filter structure for a zooplankton collector, which solves the problems of easy clogging of the screen leading to low collection efficiency and easy damage to the sample.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an anti-clogging filter structure for a zooplankton collector, including a collection tank, wherein a filter ball is movably connected inside the collection tank through a return spring, an elastic screen is provided on one side of the filter ball and placed at the opening of the collection tank, and a sampling end is provided at the other end of the collection tank.

[0006] Preferably, the inside of the collecting tank is provided with a movable slot corresponding to the reset spring, and the movable slot is located inside the collecting tank near one end of the elastic screen.

[0007] Preferably, the two ends of the filter ball are connected with limiting plates corresponding to the movable slot, the limiting plates are fixedly connected with the reset spring, and the reset spring is located on one side of the limiting plate close to the elastic screen.

[0008] Preferably, the outside of the elastic screen is sleeved with a clamping plate fixedly connected with the collecting tank, the end of the clamping plate away from the collecting tank is provided with an annular flow guide groove, and the two sides of the flow guide groove are provided with openings in communication with the flow guide groove.

[0009] Preferably, the sampling end and the collecting tank are connected through a locking hoop, and the sampling end is provided with a filter screen structure.

[0010] The one or more technical solutions provided in the embodiments of the application have at least the following technical effects or advantages:

[0011] The utility model discloses a filter ball movably connected through the reset spring is arranged in the collecting tank, and the elastic screen is arranged on one side of the filter ball, when the water flow flows, the device is driven by the water flow parallel to the water flow direction, and the filter ball moves to the elastic screen direction under the action of the reset spring and makes it deform, so that most impurities can be isolated outside through the preliminary filtration of the filter ball and the elastic screen, the impurities are prevented from being accumulated on the screen and causing the blockage, thereby improving the collection efficiency, and when there is no water flow, the device is vertically downward under the action of gravity, the filter ball stretches the reset spring away from the elastic screen under the action of gravity, at this time, the impurities on the elastic screen are driven by the water flow and separated from the elastic screen, realizing the automatic cleaning, avoiding the situation that the sample is damaged due to the frequent manual cleaning of the traditional screen caused by the blockage, and effectively solving the problems of low collection efficiency and easy damage of the sample caused by the easy blockage of the screen.

[0012] Other advantages, objects and features of the utility model will be set forth in the subsequent description, and to some extent, will be obvious to those skilled in the art based on the study of the following, or can be taught from the practice of the utility model. ACCURATE DRAWINGS

[0013] Figure 1 It is a vertical state schematic view of the anti-blocking filter screen structure of the zooplankton collector of the utility model;

[0014] Figure 2 It is a vertical state sectional view of the anti-blocking filter screen structure of the zooplankton collector of the utility model;

[0015] Figure 3A vertical state exploded view of the anti-blocking filter screen structure of the zooplankton collector;

[0016] Figure 4 A collection state sectional view of the anti-blocking filter screen structure of the zooplankton collector.

[0017] As shown in the figure:

[0018] 1, collection tank; 2, return spring; 3, filter ball; 4, elastic screen; 5, sampling end; 6, movable groove; 7, limiting plate; 8, clamping plate; 9, flow guide groove; 10, opening; 11, locking hoop. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0020] It should be noted that the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for the purpose of illustration, and do not represent the only implementation.

[0021] Unless otherwise defined, all the technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present application belongs; the terms used in the specification of the present application are only for the purpose of describing the specific embodiments, and are not intended to limit the present application; the term "and / or" used herein includes any and all combinations of one or more related listed items.

[0022] As Figure 1 and Figure 2As shown, the utility model is a kind of anti-blocking filter screen structure of zooplankton collector, mainly including collection tank 1, filter ball 3 is movably connected in collection tank 1 by reset spring 2, filter ball 3 side is equipped with the elastic screen 4 placed in the opening of collection tank 1, and collection tank 1 other end is equipped with sampling end 5.Collection tank 1 inside is equipped with the movable slot 6 corresponding with reset spring 2, movable slot 6 is located in the inside of one end close to elastic screen 4, and filter ball 3 both ends are connected with the limiting plate 7 corresponding with movable slot 6, limiting plate 7 and reset spring 2 are fixedly connected, and reset spring 2 is located in the side of limiting plate 7 close to elastic screen 4, and elastic screen 4 outside is equipped with the clamping plate 8 fixedly connected with collection tank 1, and the end of clamping plate 8 away from collection tank 1 is equipped with annular flow guide groove 9, and both sides of flow guide groove 9 are equipped with the opening 10 communicated with itself, and sampling end 5 and collection tank 1 are connected by locking hoop 11, and sampling end 5 is equipped with filter screen structure.

[0023] In the actual marine zooplankton collection process in the embodiment, when water flow impacts the collector, filter ball 3 moves to elastic screen 4 under the action of reset spring 2, elastic screen 4 deforms, effectively intercepts large impurities in water body, prevents the impurities from blocking screen pores, and ensures that zooplankton passes through and is collected smoothly. When water flow is stable or there is no water flow, filter ball 3 is away from elastic screen 4, impurities attached to the screen are guided by flow guide groove 9 and opening 10 on clamping plate 8 under the action of water flow, and are smoothly separated from the screen, to realize self-cleaning. At the same time, sampling end 5 is tightly connected with collection tank 1 by locking hoop 11, an operator can easily disassemble the sampling end, and the more detailed filter screen structure on the sampling end ensures that only water body is allowed to pass through, the integrity and accuracy of collected samples are greatly improved, and strong support is provided for zooplankton research.

[0024] As shown in Figure 3 and Figure 4 The anti-blocking filter screen structure of the zooplankton collector cooperates filter ball 3 in collection tank 1 with elastic screen 4 under the action of reset spring 2, filter ball 3 moves to elastic screen 4 to deform when there is water flow, to preliminarily filter impurities and prevent the impurities from blocking, filter ball 3 is away from elastic screen 4 when there is no water flow, impurities on the screen are cleaned by water flow, to improve collection efficiency and avoid damage to samples. The cooperation of movable slot 6 and limiting plate 7 ensures stable movement of filter ball 3, flow guide groove 9 and opening 10 on clamping plate 8 help water flow guidance and impurity cleaning, sampling end 5 is connected by locking hoop 11 for convenient operation, and the filter screen structure of the sampling end is more detailed, to facilitate accurate collection of zooplankton samples.

[0025] In the embodiment, when collecting freshwater plankton, when water flows through the collection tank 1, the filter ball 3 is close to the elastic screen 4 under the action of the reset spring 2, the deformation of the elastic screen 4 effectively blocks the impurities such as silt and large algae in the water, and only allows the plankton to pass through, greatly reducing the risk of screen blockage. Moreover, after the collection is completed, the collector is placed in a water flow-free environment, the filter ball 3 automatically moves away from the elastic screen 4, and a small amount of attached impurities on the screen are easily washed away in the subsequent flushing process, without the need for manual and tedious cleaning, ensuring the integrity of the sample. The filter screen structure of the sampling end 5 has a smaller aperture, and fine filtration allows the collected plankton sample to have higher purity, providing a higher-quality basis for subsequent experimental analysis, and has received consistent praise from researchers in actual application.

[0026] In use, first, the anti-blocking filter screen structure of the plankton collector is correctly assembled according to the design requirements, and then it is placed in the water environment where plankton needs to be collected, allowing the water to flow naturally through the collector. When there is water flow, the filter ball 3 moves to the elastic screen 4 under the action of the reset spring 2 to deform, preliminarily filtering the impurities in the water to prevent the impurities from blocking the screen. When there is no water flow, the filter ball 3 moves away from the elastic screen 4 under the action of gravity. At this time, the impurities attached to the screen will be carried by the water flow, and the automatic cleaning is realized through the flow guide groove 9 and the opening 10 on the clamping plate 8. Finally, the filter screen structure of the sampling end 5 is used for more detailed filtration to collect the required plankton sample. During the entire process, the sampling end 5 is connected to the collection tank 1 through the locking hoop 11, facilitating the operator to sample and analyze subsequently after the collection is completed.

[0027] Although the utility model has disclosed as above with preferable embodiments, it is not used to limit the utility model, anyone familiar with this technology can make various changes and modifications without departing from the spirit and scope of the utility model, therefore the protection scope of the utility model should be limited by the claims.

Claims

1. Anti-clogging filter screen structure for a zooplankton collector comprising a collection tank (1), characterized in that: The inside of the collecting tank (1) is movably connected with a filter ball (3) through a reset spring (2), one side of the filter ball (3) is provided with an elastic screen (4) placed in the opening of the collecting tank (1), and the other end of the collecting tank (1) is provided with a sampling end (5).

2. A clog-resistant screen structure for a zooplankton collector according to claim 1, wherein: The inside of the collecting tank (1) is movably connected with a filter ball (3) through a reset spring (2), one side of the filter ball (3) is provided with an elastic screen (4) placed in the opening of the collecting tank (1), and the other end of the collecting tank (1) is provided with a sampling end (5).

3. A clog-resistant screen structure for a zooplankton collector according to claim 2, wherein: The both ends of the filter ball (3) are connected with a limiting plate (7) corresponding to the movable slot (6), the limiting plate (7) is fixedly connected with the reset spring (2), and the reset spring (2) is located on the side of the limiting plate (7) close to the elastic screen (4).

4. The anti-clogging screen structure for a zooplankton collector according to claim 1, wherein: The outside of the elastic screen (4) is sleeved with a clamping plate (8) fixedly connected with the collecting tank (1), the end of the clamping plate (8) away from the collecting tank (1) is provided with an annular flow guide groove (9), and the both sides of the flow guide groove (9) are provided with openings (10) in communication with each other.

5. A clog-resistant screen structure for a zooplankton collector according to claim 1, wherein: The sampling end (5) and the collecting tank (1) are connected through a locking hoop (11), and the sampling end (5) is provided with a filter screen structure.

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