Screening net structure

Abstract

The utility model discloses a screening net structure, which relates to the technical field of screening nets and comprises a screening net frame assembly, the screening net frame assembly comprises a frame base, rectangular sliding blocks are arranged on two sides of the frame base, a screening net assembly is arranged on the screening net frame assembly, and the rectangular sliding blocks are arranged on the rectangular sliding blocks. The screening net assembly comprises a screening net base arranged on the frame base, rectangular plates are connected to the top of the screening net base in a clamped mode, and screening pieces are connected between the rectangular plates in a clamped mode. According to the utility model, the rectangular sliding blocks are inserted into the corresponding grooves of the box body, so that the screening net frame assembly can be quickly and simply mounted and dismounted, the rectangular plates are clamped on the screening net base, the screening pieces are clamped on the rectangular plates, and the screening area and the screening precision of the screening net can be quickly adjusted by adjusting the number and the positions of the rectangular plates and the screening pieces; the screening efficiency and quality are improved, and the problems that due to the fact that the hole size of an existing screening net cannot be adjusted, the screening precision and efficiency are reduced, and the screening net is inconvenient to assemble and disassemble are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of screening nets, in particular to a screening net structure. Background Art

[0002] Screening nets are an important part of screening equipment, mainly used to grade and screen object particles to meet industry, agency or specific standard approvals. Screening nets are widely used in many fields, such as petroleum, chemical, mining, construction, food processing, medical, environmental protection and scientific laboratories.

[0003] The Chinese patent with the patent number CN114308652A discloses a screen structure, including a first screen frame and a first screen arranged in the first screen frame, the screen structure also includes a second screen frame for stacking on the first screen frame and a second screen arranged in the second screen frame, the second screen frame is provided with a clamping block and a plurality of clamping members for clamping the second screen, and the plurality of clamping members are distributed in the circumferential direction of the second screen frame, and the first screen frame is provided with a clamping groove that is engaged with the clamping block. The present invention facilitates graded adjustment of the number of meshes of the screen by stacking the second screen on the first screen, and the setting of the clamping member facilitates clamping the screen body, thereby realizing the adjustment and installation of the screen in the corresponding frame.

[0004] However, in the implementation of relevant technologies, it was found that a screen structure of the above design has the following problems: the hole size of the screen cannot be adjusted, and the screening range of the screen for material particle size is limited. When faced with material particles of different sizes, the fixed holes may not be able to accurately separate particles of the required size, resulting in a decrease in screening accuracy. At the same time, the screen needs to have different hole sizes to adapt to different materials or different screening requirements. If the hole size cannot be adjusted, the screen may not be able to adapt to changes in a variety of materials or screening requirements, reducing its flexibility and extensiveness of use. In addition, for application scenarios that require frequent replacement or adjustment of the screen size, the clamped screen may not be convenient enough when replaced or adjusted, and each replacement or adjustment requires re-clamping, which may increase operation time and difficulty and reduce work efficiency. In view of this, a screening mesh structure is provided to overcome the above-mentioned defects. Utility Model Content

[0005] The purpose of the utility model is to provide a screening net structure to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model provides a screening net structure, including a screening net frame assembly, the screening net frame assembly includes a frame base and a first handle installed on the front side of the frame base, rectangular sliders are installed on both sides of the frame base, the outer surface of the frame base is arranged in a box body with a plurality of grooves on the inner wall, the outer wall of the rectangular slider is inserted into the groove of the box body, four detachable screening net assemblies are arranged on the screening net frame assembly, the four screening net assemblies include a screening net base arranged on the frame base, the top of the screening net base is provided with a plurality of grooves, a plurality of parallel arranged rectangular plates are clamped in the grooves, and a plurality of sieves arranged at equal intervals are clamped between two of the rectangular plates.

[0007] Furthermore, the bottom of the frame base is integrally formed with a raised edge that can support the screening net base, and the screen plate includes an embedded end and an extended end, and both sides of the embedded end have an approximately rectangular notch, the notch of the screen plate is embedded with the rectangular plate, and the extended end of the screen plate extends out of the screen body.

[0008] Furthermore, there are two screening net frame assemblies, and the two screening net frame assemblies are staggered and overlapped.

[0009] Furthermore, the screening net base is made of iron, and two corners on one side of the screening net base are magnetically attracted to each other with two magnet blocks, one side of the two magnet blocks is connected to a fixing rod, and the fixing rod is inserted into the screening net base and the rectangular plate, and a rectangular groove is provided on the top of the magnet block, and the length of the fixing rod is greater than the length of the screening net base.

[0010] Furthermore, a detachable collection box is provided at the inner bottom of the box body, and a second handle is installed on the front of the collection box.

[0011] Furthermore, rubber sleeves are installed on the outer walls of the first handle and the second handle, and anti-skid particles are integrally formed on the outer surface of the rubber sleeves. Anti-skid stickers are pasted in the grooves of the magnet blocks.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. In the utility model, the rectangular slider is inserted into the groove in the box body, which realizes the quick installation and disassembly of the screening mesh frame assembly and improves the work efficiency. The snap-on design makes the number and position of the rectangular plates and screens adjustable, thereby adapting to different material characteristics and screening requirements, improving the screening efficiency and quality. The modular screening mesh assembly is convenient for transportation, storage and flexible combination. The detachable design simplifies cleaning and maintenance, keeps the assembly clean and prevents clogging. The vibration effect improves the screening efficiency and solves the problems of the inability to adjust the size of the screen holes and the inconvenience of loading and unloading the screen.

[0014] 2. In the utility model, the bottom of the frame base is integrally formed with a raised edge, which provides a stable support for the screening mesh base and enhances the stability and reliability of the screen. The embedded end of the screen is tightly fitted with the rectangular plate through an approximately rectangular notch to ensure a firm connection, while simplifying disassembly and improving work efficiency. The extended end of the screen increases the screening area and improves the screening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work. In the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the internal structure of a screening net structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of a screening net structure of the utility model;

[0018] Figure 3 A schematic diagram of a screening net frame structure of a screening net structure of the utility model;

[0019] Figure 4 A schematic diagram of the detailed structure of a screening net of the utility model;

[0020] Figure 5 This is a schematic diagram of the disassembled structure of the fin fixing base of a screening net structure of the utility model;

[0021] Figure 6 A schematic diagram of the disassembly structure of a screening net base of a screening net structure of the utility model;

[0022] Figure 7 for Figure 1 A magnified view of the structure at center.

[0023] In the figure:

[0024] 1. Screening net frame assembly; 101. Frame base; 102. Rectangular slider; 103. First handle;

[0025] 2. Screening net assembly; 201. Screening net base; 202. Rectangular plate; 203. Screen piece; 204. Magnet block; 205. Fixing rod;

[0026] 3. Collection box; 4. Second handle; 5. Box body.

[0027] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0029] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Embodiment 1

[0032] Depend on Figure 1-Figure 7 It is given that the utility model provides a screening net structure.

[0033] Specifically, by Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6The invention provides a screen mesh frame assembly 1, which includes a frame base 101 and a first handle 103 installed on the front of the frame base 101. Rectangular sliders 102 are installed on both sides of the frame base 101. The outer surface of the frame base 101 is arranged in a box body 5 with a plurality of grooves on the inner wall. The outer wall of the rectangular slider 102 is inserted into the groove of the box body 5. The screen mesh frame assembly 1 is provided with a plurality of detachable screen mesh assemblies 2. The plurality of screen mesh assemblies 2 include a screen mesh base 201 arranged on the frame base 101. The top of the screen mesh base 201 is provided with a plurality of grooves. A plurality of parallel rectangular plates 202 are clamped in the grooves, wherein a plurality of equally spaced screen sheets 203 are clamped between two rectangular plates 202.

[0034] There are two screening mesh frame assemblies 1, and the two screening mesh frame assemblies 1 are offset and overlapped; when the two screening mesh frame assemblies 1 are offset and overlapped, the screening path of the material is extended, which increases the contact area and time between the material and the screening mesh assembly 2 on the screening mesh frame assembly 1, so that the material has more opportunities to pass through the pores of the screen, thereby improving the screening efficiency. Since the two screening mesh frame assemblies 1 are offset, the material is not only screened by one screen when passing through, but also by the auxiliary screening effect of the other screen. This double screening effect can more effectively remove particles that do not meet the requirements and improve the screening effect. The screen is easily blocked due to the accumulation of material particles during the screening process. When the two screening mesh frame assemblies 1 are offset and overlapped, due to the change in the screening path, the accumulated material is more easily dispersed and screened out, reducing the clogging of the screen. In addition, the two screening mesh frame assemblies 1 overlapped together can provide stronger structural support and increase the stability of the screen, which helps to reduce the deformation or damage of the screen under vibration or impact and extend the service life of the screen.

[0035] A detachable collecting box 3 is provided at the inner bottom of the box body 5, and a second handle 4 is installed on the front of the collecting box 3; the detachable collecting box 3 is provided at the inner bottom of the box body 5 to ensure that the screened materials can be collected effectively and orderly, and by directly introducing the screened materials into the collecting box 3, environmental pollution caused by scattering or flying of materials can be avoided, which helps to reduce dust, odor and other problems in the workplace, improve the working environment, and also help to meet the requirements of environmental protection laws and regulations.

[0036] The collection box 3 can be easily replaced or emptied after it is full, ensuring the continuity of the production process. In addition, the collection box 3 can also be used as a material metering tool to help achieve accurate material management. Some sharp or heavy materials may be generated during the screening process. If they are directly scattered on the ground, they may pose a safety hazard to the user. Installing the collection box 3 can effectively avoid this situation and improve safety. The second handle 4 provides a good grip point for the collection box 3, which can make it more convenient and labor-saving for the user to move or carry the collection box 3. By moving the collection box 3 quickly and easily, the time required for replacing or emptying the collection box 3 can be reduced, thereby improving overall work efficiency.

[0037] The outer walls of the first handle 103 and the second handle 4 are installed with rubber sleeves, and the outer surface of the rubber sleeves is integrally formed with anti-skid particles; the rubber material is soft and has good elasticity, can fit the shape of the hand, and provide a comfortable grip. At the same time, the wear resistance and impact resistance of the rubber also make the first handle 103 and the second handle 4 more durable, and can maintain stable performance during long-term use. The design of anti-skid particles greatly increases the friction coefficient of the rubber sleeve, so that the human hand can grip the first handle 103 and the second handle 4 more firmly, and it is not easy to slip, which can effectively prevent accidents caused by hand slippage; before using the screening net, the rectangular slider 102 is plugged into the corresponding groove of the box body 5. The plug-in connection enables the screening net frame assembly 1 to be quickly and easily installed and disassembled, greatly improving work efficiency, and due to the convenience of the plug-in connection, the cleaning and replacement of the screening net frame assembly 1 also becomes relatively easy.

[0038] When the mesh needs to be cleaned or replaced, it can be quickly disassembled and replaced, reducing maintenance time and cost. Since the rectangular plate 202 is clamped on the screening mesh base 201, and the screen 203 is clamped on the rectangular plate 202, the clamping design allows the rectangular plate 202 and the screen 203 to be quickly and conveniently installed and disassembled, so the number and position of the rectangular plates 202 and the screen 203 can be adjusted arbitrarily. By adjusting the number and position of the rectangular plates 202 and the screen 203, the screening area and screening accuracy of the screen can be quickly adjusted, which enables the screen to better adapt to different material properties and screening requirements, thereby improving screening efficiency and screening quality.

[0039] According to the particle size and shape of the material, the number and position of the rectangular plates 202 and the screen pieces 203 are reasonably adjusted, which helps to improve the distribution and flow state of the material, reduce blockage and material accumulation, and further improve the screening effect and the permeability of the screen. Moreover, when the screen piece 203 in a certain area is damaged or worn, it is only necessary to remove and replace the screen piece 203 in that area without replacing the entire screen, which helps to reduce maintenance costs and extend the service life of the screen. After adjusting the rectangular plates 202 and the screen pieces 203 according to the screening requirements, multiple detachable screening mesh components 2 are placed on the frame base 101. The multiple screening mesh components 2 adopt a modular design concept to divide the screen frame into multiple detachable modules. This design is not only convenient for transportation and storage, but also allows users to flexibly combine screen frames of different sizes and shapes according to actual needs, thereby improving the adaptability and flexibility of the screen.

[0040] In addition, the detachable design allows the screening mesh assembly 2 to be easily removed from the equipment, facilitating regular cleaning and maintenance work, which helps to maintain the cleanliness of the screening mesh assembly 2 and prevent clogging and dust accumulation, thereby ensuring the normal operation of the equipment. During the screening process, a person manually pulls the first handle 103 back and forth to cause the screening mesh frame assembly 1 to vibrate. The vibration can drive the material to move and stratify quickly on the screen, so that the material particles are more evenly distributed on the screen surface, which is conducive to the passage of fine-grained materials through the sieve holes. At the same time, it helps to prevent the material from clogging or accumulating on the screen. Especially for sticky materials or materials containing moisture, vibration can effectively improve the screening effect, thereby improving the screening efficiency.

[0041] Embodiment 2

[0042] On the basis of the first embodiment, further as a specific implementation mode of the present invention, the present invention provides a screening net structure.

[0043] Specifically, by Figure 1 , Figure 3 , Figure 5 , Figure 6 , Figure 7 The bottom of the frame base 101 is integrally formed with a raised edge that can carry the screening net base 201. The screen plate 203 includes an embedded end and an extended end. Both sides of the embedded end have an approximately rectangular notch. The notch of the screen plate 203 is embedded with the rectangular plate 202, and the extended end of the screen plate 203 extends out of the screen body.

[0044] The material of the screening net base 201 is iron, and its outer surface is coated with a rust-proof agent. Two corners of one side of the screening net base 201 are magnetically attracted to each other and there are two magnet blocks 204. One side of the two magnet blocks 204 is connected to a fixing rod 205, and the fixing rod 205 is inserted into the screening net base 201 and the rectangular plate 202. A rectangular groove is opened on the top of the magnet block 204, and an anti-slip sticker is attached to the groove of the magnet block 204. The length of the fixing rod 205 is greater than the length of the screening net base 201; since the magnet block 204 components are magnetic, they can be easily adsorbed onto the iron screening net base 201, thereby simplifying the assembly process. Similarly, disassembly may also be easier, and separation can be achieved by simply overcoming the magnetic force. The magnetic connection can usually provide a fairly stable connection force, so that the entire structure can maintain a certain stability after assembly, so that the fixing rod 205 will not fall off when inserted into the screening net base 201 and the rectangular plate 202, thereby increasing the overall stability of the screening net assembly 2.

[0045] The outer surface of the screening mesh base 201 is coated with a rust inhibitor, which can form a rust-proof oil film on the surface of the screening mesh base 201, effectively preventing the screening mesh base 201 made of iron material from rusting. Moreover, this oil film can isolate air, moisture and other corrosive substances, thereby greatly extending the service life of the screening mesh base 201. A rectangular groove is provided on the top of the magnet block 204, and an anti-slip sticker is affixed to the groove. The surface of the anti-slip sticker usually has concave and convex textures or patterns, which can increase the friction between the human hand and the magnet block 204, so that the human hand can more conveniently and labor-savingly install and remove the magnet block 204 and the fixing rod 205 connected to the magnet block 204. The length of the fixing rod 205 is greater than the length of the screening mesh base 201. The human hand can more conveniently and labor-savingly remove the fixing rod 205 by pushing the protruding end of the fixing rod 205, thereby improving work efficiency.

[0046] The bottom of the frame base 101 is integrally formed with a raised edge that can support the screening mesh base 201. The raised edge provides a stable supporting surface for the screening mesh base 201, ensuring that the screening mesh base 201 can be firmly placed on the frame base 101. This design helps to reduce accidental falling off or damage caused by shaking or movement, and improves the stability and reliability of the screen. The embedded end of the screen 203 is tightly fitted with the rectangular plate 202 through the notch. This design can ensure that the connection between the screen 203 and the rectangular plate 202 is firm and reliable, and is not easy to loosen or fall off, so that the screen has stronger structural strength and stability, can withstand greater screening pressure and impact force, reduce the occurrence of breakage and cracking, and can avoid the reduction of screening effect or equipment failure due to structural looseness.

[0047] The approximately rectangular notch design makes the fitting process of the screen 203 and the rectangular plate 202 easier, and also facilitates the subsequent disassembly work, improves work efficiency and reduces maintenance costs. The extended end of the screen 203 extends out of the screen body, which can increase the screening area, improve the screening efficiency, and help the distribution and flow of materials on the screen, further improving the screening effect. In addition, due to the close fitting of the screen 203 and the screen 203, the wear caused by vibration or impact can be reduced, thereby extending the service life of the screen.

[0048] Working principle:

[0049] Before using the screening net, the rectangular slider 102 is plugged into the corresponding groove of the box body 5. The plug-in connection enables the screening net frame assembly 1 to be quickly and easily installed and disassembled, greatly improving work efficiency. Due to the convenience of the plug-in connection, the cleaning and replacement of the screening net frame assembly 1 also becomes relatively easy. When the net body needs to be cleaned or replaced, it can be quickly disassembled and replaced, reducing maintenance time and cost. Since the rectangular plate 202 is clamped on the screening net base 201 and the screen 203 is clamped on the rectangular plate 202, the clamping design allows the rectangular plate 202 and the screen 203 to be quickly and conveniently installed and disassembled, so the number and position of the rectangular plates 202 and the screen 203 can be adjusted arbitrarily. By adjusting the number and position of the rectangular plates 202 and the screen 203, the screening area and screening accuracy of the screen can be quickly adjusted, which enables the screen to better adapt to different material properties and screening requirements, and improves screening efficiency and screening quality.

[0050] According to the particle size and shape of the material, the number and position of the rectangular plates 202 and the screen pieces 203 are reasonably adjusted, which helps to improve the distribution and flow state of the material, reduce blockage and material accumulation, and further improve the screening effect and the permeability of the screen. Moreover, when the screen piece 203 in a certain area is damaged or worn, it is only necessary to remove and replace the screen piece 203 in that area without replacing the entire screen, which helps to reduce maintenance costs and extend the service life of the screen. After adjusting the rectangular plates 202 and the screen pieces 203 according to the screening requirements, multiple detachable screening mesh components 2 are placed on the frame base 101. The multiple screening mesh components 2 adopt a modular design concept to divide the screen frame into multiple detachable modules. This design is not only convenient for transportation and storage, but also allows users to flexibly combine screen frames of different sizes and shapes according to actual needs, thereby improving the adaptability and flexibility of the screen.

[0051] The detachable design enables the screening mesh assembly 2 to be easily removed from the equipment, facilitating regular cleaning and maintenance work, which helps to maintain the cleanliness of the screening mesh assembly 2, prevents clogging and dust accumulation, and thus ensures the normal operation of the equipment. During the screening process, a person manually pulls the first handle 103 back and forth to cause the screening mesh frame assembly 1 to vibrate. The vibration can drive the material to move and stratify quickly on the screen, so that the material particles are more evenly distributed on the screen surface, which is conducive to the passage of fine-grained materials through the sieve holes, and at the same time helps prevent the material from clogging or accumulating on the screen. Especially for sticky materials or materials containing moisture, vibration can effectively improve the screening effect, thereby improving the screening efficiency.

[0052] The bottom of the frame base 101 is integrally formed with a raised edge that can support the screening mesh base 201. The raised edge provides a stable supporting surface for the screening mesh base 201, ensuring that the screening mesh base 201 can be firmly placed on the frame base 101. This design helps to reduce accidental falling off or damage caused by shaking or movement, and improves the stability and reliability of the screen. The embedded end of the screen 203 is tightly fitted with the rectangular plate 202 through the notch. This design can ensure that the connection between the screen 203 and the rectangular plate 202 is firm and reliable, and is not easy to loosen or fall off, so that the screen has stronger structural strength and stability, can withstand greater screening pressure and impact force, reduce the occurrence of breakage and cracking, and can avoid the reduction of screening effect or equipment failure due to structural looseness.

[0053] The approximately rectangular notch design makes the fitting process of the screen 203 and the rectangular plate 202 easier, and also facilitates the subsequent disassembly work, improves work efficiency and reduces maintenance costs. The extended end of the screen 203 extends out of the screen body, which can increase the screening area, improve the screening efficiency, and help the distribution and flow of materials on the screen, further improving the screening effect. In addition, due to the close fitting of the screen 203 and the screen 203, the wear caused by vibration or impact can be reduced, thereby extending the service life of the screen.

[0054] The above is only a preferred embodiment of the present invention, and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the present invention.

Claims

1. A screening net structure, comprising a screening net frame assembly (1), characterized in that: The screening net frame assembly (1) comprises a frame base (101) and a first handle (103) mounted on the front of the frame base (101); rectangular sliders (102) are mounted on both sides of the frame base (101); the outer surface of the frame base (101) is arranged in a box body (5) whose inner wall is provided with a plurality of grooves; the outer wall of the rectangular slider (102) is inserted into the groove of the box body (5); four detachable screening net assemblies (2) are arranged on the screening net frame assembly (1); the four screening net assemblies (2) comprise a screening net base (201) mounted on the frame base (101); the top of the screening net base (201) is provided with a plurality of grooves; a plurality of parallel arranged rectangular plates (202) are clamped in the grooves; a plurality of sieve plates (203) arranged at equal intervals are clamped between two of the rectangular plates (202).

2. A screening net structure as claimed in claim 1, characterized in that: The bottom of the frame base (101) is integrally formed with a raised edge capable of supporting the screening net base (201); the screening plate (203) comprises an embedded end and an extended end, and both sides of the embedded end are provided with an approximately rectangular notch, the notch of the screening plate (203) is engaged with the rectangular plate (202), and the extended end of the screening plate (203) extends out of the screening body.

3. A screening net structure as claimed in claim 2, characterized in that: There are two screening net frame assemblies (1), and the two screening net frame assemblies (1) are staggered and overlapped.

4. A screening net structure as claimed in claim 3, characterized in that: The screening net base (201) is made of iron. Two corners of one side of the screening net base (201) are provided with two magnet blocks (204) that are magnetically attracted to each other. One side of the two magnet blocks (204) is connected with a fixing rod (205). The fixing rod (205) is inserted into the screening net base (201) and the rectangular plate (202). A rectangular groove is provided on the top of the magnet block (204). The length of the fixing rod (205) is greater than the length of the screening net base (201).

5. A screening net structure as claimed in claim 4, characterized in that: A detachable collection box (3) is provided at the inner bottom of the box body (5), and a second handle (4) is installed on the front of the collection box (3).

6. A screening net structure as claimed in claim 5, characterized in that: The outer walls of the first handle (103) and the second handle (4) are installed with rubber sleeves, the outer surfaces of the rubber sleeves are integrally formed with anti-skid particles, and the grooves of the magnet blocks (204) are affixed with anti-skid stickers.

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