A barrier net and system

Abstract

The utility model relates to filter equipment and agricultural pest control technical field, specifically disclose a blocking net, including frame, install at least one for solid -liquid separation blocking foreign matter's blocking mechanism on the frame, the blocking mechanism includes a plurality of filter screen, the filter screen includes the net body with interstice to any net body matching installation's scraper, the scraper is defined as the structure that can slide with the net body and scrape off the foreign matter that the aperture is shielded. The utility model discloses the filter screen of three -dimensional structure, through the blocking mechanism can automatically scrape off the adherend, need not manual cleaning, greatly promoted the convenience.

Description

Technical Field

[0001] This utility model relates to the field of filtration devices and auxiliary devices for physical control of agricultural pests, particularly to the field of filtration devices for golden apple snails or their eggs in farmland, specifically to a barrier net and system. Background Technology

[0002] Golden apple snails are an invasive species whose main harms include crop damage, ecosystem threats, and the spread of parasitic diseases. They reproduce rapidly, are highly adaptable, and can easily cause serious damage to agriculture and aquatic ecosystems. The parasites they carry can also cause human diseases. Golden apple snails feed on the tender stems and leaves of aquatic crops such as rice, water chestnuts, and lotus roots, causing widespread crop death, especially during the seedling stage. For example, golden apple snails in rice paddies can devour all the seedlings in a short time, resulting in severe yield reduction. Their egg masses attach to plant stems or field ridges, affecting agricultural operations; their excrement also pollutes water quality, exacerbating eutrophication in farmland.

[0003] Existing methods for controlling golden apple snails lack uniformity and are relatively haphazard. Many methods involve setting up structures in farmland, such as fences and nets, to provide attachment points and allow snails to lay eggs, based on the snail's specific habitat characteristics. However, these structures can interfere with crop cultivation. Ultimately, nets are often installed at drainage outlets to prevent the snails from spreading with the water flow. The biggest advantage of conventional nets is their ease of installation and readily available materials in various mesh sizes. However, their drawbacks are also significant. Large-mesh nets are ineffective at blocking solids, while smaller meshes are completely ineffective. Conversely, very small meshes, due to their strong filtration effect, can quickly clog the nets, requiring manual cleaning. Golden apple snail habitats typically contain water rich in plankton, suspended solids, and floating vegetation. While these debris are relatively easy to remove, the manual cleaning process is tedious, time-consuming, and labor-intensive. Furthermore, the typical mesh size of nets is insufficient to block snail eggs, resulting in poor effectiveness in preventing the snails' reproduction and spread. Utility Model Content

[0004] To address the shortcomings of existing technologies in blocking golden apple snail eggs and the time-consuming and labor-intensive need for manual intervention to remove suspended and attached matter, this application provides a barrier net and system that can solve at least one of the following technical problems: 1. This utility model adopts an automatic scraping barrier net, which can physically scrape off the attached materials on the net body at regular or irregular intervals, so as to avoid the attached materials from clogging the barrier net, solve the problem of time-consuming and laborious manual cleaning, and improve the smooth flow of water and filtration efficiency.

[0005] 2. This utility model can set up multiple blocking mechanisms in a gradient manner, and by gradually reducing the size of the pores, the attached material can be blocked step by step, avoiding serious blockage caused by concentrated blocking; secondly, it can filter the clustered golden apple snail eggs step by step, and break them up in stages to prevent them from spreading with the water flow and causing the golden apple snail to increase its breeding range.

[0006] 3. This utility model adopts a barrel-shaped scraping barrier net, which has a larger filtration area compared with existing drain nets or filter nets, has a low degree of water flow blockage, has little impact, and has high filtration and flow efficiency.

[0007] To achieve the above objectives, the technical solution adopted in this application is as follows: A barrier net includes a frame and at least one barrier mechanism mounted on the frame for solid-liquid separation and blocking of foreign objects. The barrier mechanism includes a plurality of filter screens, each filter screen including a mesh body with pores and a scraper mounted to each mesh body. The scraper is defined as a structure capable of sliding relative to the mesh body and scraping away foreign objects that obstruct the pores.

[0008] To enhance the automation of this invention and reduce or even eliminate the tedious problem of manual filter cleaning, this invention preferably includes a drive mechanism that is directly or indirectly connected to the filter body and the scraper, driving the filter body and the scraper to reciprocate relative to each other. Direct connection means that the two relatively movable ends of the drive mechanism are directly connected to the filter body and the scraper, respectively. The relative movement of the drive mechanism itself directly drives the filter body and the scraper to move synchronously relative to each other, thereby achieving the technical effect of relative movement between the filter body and the scraper. Taking a hydraulic rod as an example, the filter body and the scraper are connected to the two ends of the hydraulic rod, respectively. Indirect connection means that the two ends of the drive mechanism are not directly connected to the filter body and the scraper, but rather indirectly drive the filter body and the scraper to move relative to each other through other support structures.

[0009] To facilitate subsequent maintenance, as well as the replacement and cleaning of the mesh body and the scraper, preferably, two parallel mounting plates are installed on the frame. Each mounting plate has mounting holes for mounting the mesh body and the scraper, respectively. The drive mechanism is installed between the two mounting plates and drives the two mounting plates to move relative to each other.

[0010] To further improve the efficiency and effectiveness of scraping off the attached material, preferably, the net body is a hollow barrel-shaped structure with one end open, and the side wall of the net body is provided with strip-shaped holes along the axial or length direction. The scraper is slidably sleeved on the outer side wall of the net body, and the inner side wall of the scraper has scraping teeth that are adapted to the width of the holes for scraping off foreign objects.

[0011] More preferably, the closed end of the mesh body adopts a low flow resistance structure, which is any one of a conical structure, a hemispherical structure, an arc-shaped surface structure, or a teardrop-shaped structure.

[0012] To further increase the effective filtration area per unit volume, and even more preferably, the cross-section of the mesh body is any one of a circle, square, triangle, polygon, pentagon, or irregular polygon.

[0013] To adapt to different installation environments and meet installation requirements of different shapes and sizes, preferably, the drive mechanism adopts any one of the following: a screw drive mechanism, a hydraulic telescopic mechanism, a pneumatic telescopic mechanism, and a linkage telescopic mechanism.

[0014] As a preferred embodiment of the present invention, the driving mechanism adopts a lead screw driving mechanism, including a driver and a connecting seat respectively mounted on the two mounting plates, and a lead screw driven by the driver and driven and connected to the connecting seat.

[0015] To adapt to different installation environments and avoid obstruction or omission, preferably, a flow guiding mechanism is also included on the frame to guide water flow into the blocking mechanism. The flow guiding mechanism is a baffle structure that is set on the frame or blocking mechanism and is connected end to end along the edge of the blocking mechanism or is not connected.

[0016] This utility model also provides a barrier net system for automatically removing foreign objects attached to the barrier net described above. Specifically, it includes a control unit, a barrier mechanism electrically connected to the control unit, and a sensor for collecting the speed or flow rate of the blocked water. The control unit controls a scraper to scrape the foreign objects on the net body in real time, either periodically or based on the data collected by the sensor. Beneficial effects

[0017] This utility model adopts a three-dimensional filter screen, which can automatically scrape off the attached objects through the blocking mechanism, eliminating the need for manual cleaning and greatly improving convenience. At the same time, the blocking mechanism of this utility model can be installed in a multi-stage modular manner, using the width of the pores to achieve step-by-step filtration and blocking, solving the problem of incompatibility between flow rate and filtration effect. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1This is the structural isometric drawing of this utility model.

[0020] Figure 2 yes Figure 1 Another visual structural isometric view.

[0021] Figure 3 This is a top view of the present invention.

[0022] Figure 4 This is an isometric view of the filter screen.

[0023] In the diagram: 1-Frame; 2-Blocking mechanism; 3-Filter screen; 31-Screw body; 32-Pore; 33-Scraper; 34-Scraper teeth; 4-Mounting plate; 5-Mounting hole; 6-Driver; 7-Screw; 8-Connecting seat; 9-Flow guiding mechanism. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] In the description of this application, it should be noted that the use of terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product is in use. These terms are used solely for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the use of terms such as "first" and "second" in the description of this application is only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this application does not imply that the component is required to be absolutely horizontal or suspended, but rather that it may be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but rather that it may be slightly tilted.

[0029] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Example

[0030] This embodiment provides a barrier net; see the structure below. Figure 1 and Figure 2 As shown, the device includes a frame 1, at least one blocking mechanism 2 for solid-liquid separation and blocking foreign objects mounted on the frame 1, the blocking mechanism 2 including a plurality of filter screens 3, each filter screen 3 including a mesh body 31 with pores 32, and a scraper 33 fitted to each mesh body 31. The scraper 33 is defined as a structure capable of sliding relative to the mesh body 31 and scraping away foreign objects blocking the pores 32. See details. Figure 4 As shown. Figure 2 As shown, two blocking mechanisms 2 are installed sequentially along the water flow direction. More blocking mechanisms 2 can also be used. By successively reducing the aperture 32 of each blocking mechanism 2 along the water flow direction, the purpose of dispersing the filtration pressure and filtering in stages can be achieved, thereby achieving a balance between filtration effect and smooth water flow.

[0031] Working Principle: In practical use, the barrier net of this embodiment blocks foreign objects, including golden apple snail eggs, mixed in with the water flow through the net body 31, achieving solid-liquid separation and preventing the golden apple snail eggs from spreading with the water flow, causing larger-area damage and disrupting the agricultural ecosystem. During installation, the entire barrier net is first installed on the waterway to be filtered. The key to installation is ensuring that the perimeter of the frame 1 is completely sealed to the actual installation environment, making the blocking mechanism 2 the only channel for water flow, thus avoiding blind spots or omissions in the filtration and ensuring that foreign objects, including golden apple snail eggs, or floating debris are effectively blocked. Unlike existing filter nets, the net body 31 provided in this embodiment is a rigid structure, not a flexible one. Furthermore, the net body 31 is matched with a scraper 33 that can scrape away foreign objects attached to the openings 32 through which the water flows by reciprocating sliding. The structure and cooperation between the net body 31 and the scraper 33 can have various structural combinations. For example, the mesh body 31 can be a plate with multiple pores 32, and the scraper 33 can be a plate with multiple posts. The posts are aligned with the pores 32 on the mesh body 31, and the sliding of the posts within the pores 32 removes foreign objects clogging them. Of course, this is only one feasible solution for removing foreign objects in this embodiment, and not the only limitation on the filter screen 3 in this embodiment. In this embodiment, the relative reciprocating motion between the scraper 33 and the mesh body 31 can be automatically completed by a drive mechanism or manually completed by applying external force. It should be emphasized that the solution provided by this utility model mainly addresses the issue of golden apple snail eggs spreading to a wider area without flowing with the water, causing greater ecological and agricultural damage. If there are objects in the water that are difficult to scrape off, or even cause the filter screen 3 to become stuck, then a filter screen with larger mesh openings can be pre-installed to block hard debris, thus preventing clogging of this utility model. Example

[0032] Based on Embodiment 1, this embodiment, in order to improve the automation of this utility model and reduce or even eliminate the tedious problem of cleaning the filter screen due to the need for manual intervention, further includes a drive mechanism that is directly or indirectly connected to the screen body 31 and the scraper 33 and drives the screen body 31 and the scraper 33 to reciprocate relative to each other. See also Figures 1-3The diagram illustrates a screw-driven mechanism. The direct connection refers to the direct connection of the relatively movable ends of the drive mechanism to the net body 31 and the scraper 33, respectively. The relative movement of the drive mechanism directly drives the synchronous relative movement of the net body 31 and the scraper 33, thereby achieving the technical effect of relative movement between the net body 31 and the scraper 33. Taking a hydraulic rod as an example, the net body 31 and the scraper 33 are simply connected to the two ends of the hydraulic rod. The indirect connection refers to the fact that the two ends of the drive mechanism are not directly connected to the net body 31 and the scraper 33, but rather indirectly drive the relative movement of the net body 31 and the scraper 33 through other support structures. To adapt to different installation environments and meet the installation requirements of different shapes and sizes, the drive mechanism can be any one of a screw-driven mechanism, a hydraulic telescopic mechanism, a pneumatic telescopic mechanism, or a linkage telescopic mechanism.

[0033] This embodiment uses the appendix Figures 1-3 Taking the lead screw drive mechanism shown as an example, the drive mechanism includes a driver 6 and a connecting seat 8 respectively mounted on the two mounting plates 4, and a lead screw 7 driven by the driver 6 and connected to the connecting seat 8. When the driver 6 drives the lead screw 7 to rotate synchronously, the threaded connection between the lead screw 7 and the connecting seat 8 achieves relative axial movement. That is, the connecting seat 8 drives the mounting plate 4 connected to it to reciprocate along the lead screw 7, thereby causing relative movement between the mesh body 31 and the scraper 33, achieving the purpose of scraping away foreign objects attached to the pores 32. The driver 6 can be a servo motor, a stepper motor, or a common motor with a limit switch, or other mechanisms that can achieve reciprocating motion within a predetermined stroke range using existing technology.

[0034] To further increase the effective filtration area per unit volume, and even more preferably, the cross-section of the mesh body 31 is any one of a circle, square, triangle, polygon, pentagon, or irregular polygon. (See attached image) Figures 1-4 Taking the circular cross-section of the net body 31 shown in the figure as an example, in order to facilitate subsequent maintenance, as well as the replacement and cleaning of the net body 31 and the scraper 33, in this embodiment, two parallel mounting plates 4 are installed on the frame 1. Each of the two mounting plates 4 is provided with mounting holes 5 for mounting the net body 31 and the scraper 33 respectively. The driving mechanism is installed between the two mounting plates 4 and drives the two mounting plates 4 to move relative to each other.

[0035] To further improve the efficiency and effectiveness of scraping off attached materials, in this embodiment, the mesh body 31 is a hollow, barrel-shaped structure with one open end. The sidewall of the mesh body 31 has strip-shaped perforations 32 along its axis or length. The scraper 33 is slidably fitted onto the outer sidewall of the mesh body 31. The inner sidewall of the scraper 33 has scraping teeth 34 that are adapted to the width of the perforations 32 for scraping off foreign matter. See details... Figure 4 As shown.

[0036] See Figure 4 As shown, the closed end of the mesh body 31 adopts a low flow resistance structure, which can be any one of a conical structure, a hemispherical structure, an arc surface structure, or a teardrop-shaped structure.

[0037] To accommodate installation environments of different shapes and avoid obstructions or omissions, please refer to [reference needed]. Figure 1 As shown, it also includes a flow guiding mechanism 9 disposed on the frame 1 for guiding water flow into the barrier mechanism 2. The flow guiding mechanism 9 is a baffle structure disposed on the frame 1 or the barrier mechanism 2 and connected end to end along the edge of the barrier mechanism 2, or not connected. The function of the flow guiding mechanism 9 is to prevent water flow from passing through the gaps between the barrier net and the installation environment structure, thus avoiding the formation of a filtration blind zone. Therefore, different structural settings are used depending on the installation environment. However, those skilled in the art know that its purpose is to prevent water flow from bypassing the barrier net and causing filtration leakage. Therefore, the flow guiding mechanism 9 can be adapted to different installation environments to seal other gaps and guide water flow into the barrier net. Any structure of the flow guiding mechanism 9 that achieves the above-mentioned function of guiding and sealing the installation gaps should be included within the scope of the flow guiding mechanism 9 mentioned in this embodiment. Example

[0038] This utility model also provides a barrier net system for automatically removing foreign objects attached to the barrier net described above. Specifically, it includes a control unit, a barrier mechanism 2 electrically connected to the control unit, and a sensor for collecting the speed or flow rate of the blocked water. The control unit controls the scraper 33 to scrape the foreign objects on the net body 31 in real time, either periodically or based on the data collected by the sensor.

[0039] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A barrier net, characterized in that: The system includes a frame (1), at least one blocking mechanism (2) for solid-liquid separation and blocking foreign objects mounted on the frame (1), the blocking mechanism (2) including a plurality of filter screens (3), the filter screen (3) including a mesh body (31) having pores (32) provided thereon, and a scraper (33) matched and mounted with any mesh body (31), the scraper (33) being defined as a structure capable of sliding relative to the mesh body (31) and scraping away foreign objects that block the pores (32).

2. The barrier net according to claim 1, characterized in that: It also includes a drive mechanism that is directly or indirectly connected to the net body (31) and the scraper (33) and drives the net body (31) and the scraper (33) to reciprocate relative to each other.

3. The barrier net according to claim 2, characterized in that: Two parallel mounting plates (4) are installed on the frame (1). Each mounting plate (4) has mounting holes (5) for mounting the mesh body (31) and the scraper (33) respectively. The driving mechanism is installed between the two mounting plates (4) and drives the two mounting plates (4) to move relative to each other.

4. The barrier net according to claim 3, characterized in that: The mesh body (31) is a hollow barrel structure with one end open. The side wall of the mesh body (31) is provided with strip-shaped holes (32) along the axis or length direction. The scraper (33) is slidably sleeved on the outer side wall of the mesh body (31). The inner side wall of the scraper (33) has scraping teeth (34) that are adapted to the width of the holes (32) for scraping foreign objects.

5. The barrier net according to claim 4, characterized in that: The closed end of the net body (31) adopts a low flow resistance structure, which is any one of a conical structure, a hemispherical structure, an arc surface structure or a teardrop structure.

6. The barrier net according to claim 4, characterized in that: The cross-section of the net body (31) is any one of the following: circle, square, triangle, polygon, or pentagram.

7. A barrier net according to any one of claims 3-6, characterized in that: The drive mechanism can be any one of a screw drive mechanism, a hydraulic telescopic mechanism, a pneumatic telescopic mechanism, and a linkage telescopic mechanism.

8. The barrier net according to claim 7, characterized in that: The drive mechanism is a lead screw drive mechanism, including a driver (6) and a connecting seat (8) respectively mounted on the two mounting plates (4), and a lead screw (7) driven by the driver (6) and driven and connected to the connecting seat (8).

9. The barrier net according to claim 1, characterized in that: It also includes a flow guiding mechanism (9) set on the frame (1) for guiding water flow into the blocking mechanism (2). The flow guiding mechanism (9) is a baffle structure set on the frame (1) or the blocking mechanism (2) and connected end to end or not connected along the edge of the blocking mechanism (2).

10. A barrier net system for automatically removing foreign objects attached to the barrier net as described in any one of claims 1-9, characterized in that: It includes a control unit, a blocking mechanism (2) electrically connected to the control unit, and a sensor for collecting the speed or flow rate of the blocked water flow; the control unit controls the scraper (33) to scrape the foreign objects on the net body (31) in real time or according to the data collected by the sensor.

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