Soil multilayer screening device

Abstract

The invention discloses a soil multi-layer screening device, and relates to the technical field of soil, the soil multi-layer screening device comprises a vibrating screen of a rectangular frame mechanism, and the interior of the upper end of the vibrating screen is fixedly connected with a screen used for screening materials in a net shape; a screen box used for bearing the screen mesh and supporting the whole screening process is fixedly connected to the interior of the side, close to the screen mesh, of the vibrating screen, and a vibrating motor used for driving the screen box and the screen mesh to vibrate is fixedly connected to the outer wall of one side of the vibrating screen. The outer wall of the side, close to the screen box, of the vibrating screen is fixedly connected with a discharging port used for outputting screened materials, a gathering guiding mechanism is arranged above the screen, inclined drainage mechanisms are arranged on the two sides of the inner wall of the screen box, annular adsorption mechanisms are arranged on the two sides of the screen, and gathering pieces and connecting rods are matched with one another to absorb the materials in the annular adsorption mechanisms. And the gathering guide mechanism can be used for more concentrating the soil samples on the screen, so that dispersion and splashing of the soil in the screening process are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of soil, and in particular to a soil multi-layer screening device. Background Art

[0002] As an advanced soil processing and analysis tool, the soil multi-layer screening device, its research and development and application background deeply reflects the growing demand and attention of modern science and technology to the fields of agriculture, environmental science, soil science and geology.

[0003] With the continuous development of global agricultural production and the enhancement of environmental protection awareness, the monitoring, evaluation and improvement of soil quality have become particularly important. As the basis of agricultural production, the physical properties, chemical composition and microbial community structure of soil directly affect the growth and yield of crops. At the same time, with the acceleration of urbanization and frequent industrial activities, soil pollution has become increasingly prominent, and the treatment and restoration of contaminated soil has also become one of the focuses of environmental science research.

[0004] In this context, traditional soil screening methods can no longer meet the needs of high-precision and high-efficiency screening. Traditional screening tools can often only screen a single particle size and are easily affected by factors such as soil moisture and adhesion, resulting in unsatisfactory screening results. Therefore, it is particularly important to develop a soil multi-layer screening device that can achieve multi-layer screening and improve screening accuracy and efficiency.

[0005] The soil multi-layer screening device integrates multi-layer screens, vibrators, motors and other components to achieve efficient and accurate screening of soil samples. The device can separate particles of different sizes in soil samples layer by layer according to the screening aperture set by the user, thereby meeting the needs of soil particle size distribution, component analysis and other requirements in different fields. At the same time, the device also has the advantages of easy maintenance and simple operation, which greatly improves the efficiency and accuracy of soil screening work; There are still the following defects in specific use: 1. Reduced screening efficiency: When large particles are blocked in small meshes, the permeability of these meshes will decrease, resulting in the inability of the screen to effectively separate and screen the materials. As a result, the screening efficiency decreases and the particle size distribution of the screened materials is uneven; Screen blockage: The accumulation of large particles may cause partial blockage of the screen. In this way, the material cannot move smoothly on the screen, which may cause a decrease or uneven material flow, thereby affecting the overall production capacity; Equipment wear and damage: When large particles accumulate in the mesh, the moving parts of the vibrating screen may be subjected to excessive pressure and friction, resulting in accelerated wear of the equipment. This not only increases maintenance costs, but may also shorten the service life of the equipment.

[0006] 2. Loss of material: Splashing soil can cause some material to be lost, affecting the overall efficiency and production volume of the screening. Especially in large-scale production, this loss may accumulate into a significant amount; Reduced screening effect: Splashing soil may cause the screen of the screener to become dirty or blocked, affecting the screening effect and accuracy. Soil splashing may also cover the screen, resulting in reduced screening accuracy; Environmental pollution: Splashing soil may cause pollution to the on-site environment, especially in a closed or semi-closed working environment. Splashing soil will cause the surrounding ground to be dirty and messy, and may also affect the health and comfort of the staff.

[0007] In view of this, the present invention proposes a soil multi-layer screening device to compensate for and improve the deficiencies of the prior art. Summary of the invention

[0008] In order to solve the above technical problems, the present invention provides a soil multi-layer screening device to solve the technical problems raised in the above background technology.

[0009] To achieve the above purpose, the technical solution adopted by the present invention is: a soil multi-layer screening device, including a vibrating screen of a rectangular frame mechanism, a screen for screening materials in the form of mesh material fixedly connected to the upper end of the vibrating screen, a screen box for carrying the screen and supporting the entire screening process fixedly connected to the inner side of the vibrating screen close to the screen, a vibration motor for driving the screen box and the screen to vibrate is fixedly connected to the outer wall of one side of the vibrating screen, a discharge port for outputting the screened material is fixedly connected to the outer wall of the vibrating screen close to the screen box, a bracket for supporting the screen box and vibrating appropriately during the vibration process is fixedly connected to the lower end of the vibrating screen, a gathering guide mechanism is arranged above the screen, oblique drainage mechanisms are arranged on both sides of the inner wall of the screen box, and annular adsorption mechanisms are arranged on both sides of the screen; The gathering and guiding mechanism is used to help evenly distribute the soil on the surface of the screen; The oblique drainage mechanism is used to directly guide large-particle materials into the large-diameter mesh; The annular adsorption mechanism is used to temporarily fix the materials when the materials are gathered.

[0010] Furthermore, the gathering guide mechanism includes a support plate fixedly connected to the inner wall of the screen box, the upper surface of the support plate on a side away from the vibration motor is fixedly connected to a telescopic cylinder, the upper end of the telescopic cylinder on a side away from the support plate is fixedly connected to an external clip, the upper surface of the external clip on a side away from the telescopic cylinder is fixedly connected to a touch switch, the outer wall of the external clip is rotatably connected to a plurality of connecting rods, the ends of the plurality of connecting rods away from the external clip are rotatably connected to a gathering piece, and the bottoms of the ends of the plurality of gathering pieces away from the connecting rods are fixedly connected.

[0011] Furthermore, one end of the touch switch away from the external buckle is electrically connected to the upper surface of the telescopic cylinder, the outer wall of the external buckle is provided with a plurality of inner grooves, and a plurality of connecting rods are rotatably connected to the plurality of inner grooves provided on the outer wall of the external buckle, and the plurality of connecting rods are distributed in a ring shape.

[0012] Furthermore, a plurality of slide rails symmetrically distributed in a ring shape are provided on the surface of one side of the support plate close to the gathering piece, and the plurality of gathering pieces are slidably connected to the inside of the plurality of slide rails symmetrically distributed in a ring shape on the surface of the support plate close to the gathering piece, and the bottom ends of the plurality of pieces on the side away from the gathering piece are attached to the upper surface of the screen.

[0013] Furthermore, the oblique drainage mechanism includes an arc connecting plate fixedly connected to the outer wall of one side of the gathering piece, a clamping shaft is provided inside the arc connecting plate on the side away from the gathering piece, a turntable is fixedly connected to the outer wall of one end of the clamping shaft away from the arc connecting plate, a threaded rod is fixedly connected to the axis of the outer wall of the turntable on the side away from the clamping shaft, a moving block is provided on the outer wall of the threaded rod, both side outer walls of the moving block are rotatably connected to short-circuit rods, both ends of the two short-circuit rods away from the moving block are rotatably connected to flip plates, and the bottom ends of the outer walls of the flip plates on both sides away from the short-circuit rods are fixedly connected to fixed blocks.

[0014] Furthermore, a through arc groove is formed at one end of the arc connecting plate away from the gathering piece, and the clamping shaft is clamped in the through arc groove formed at one end of the arc connecting plate away from the gathering piece, and the clamping shaft is fixedly connected to the eccentric part of the turntable.

[0015] Furthermore, the threaded rod and the moving block constitute a ball screw structure, the outer wall of the flip plate is provided with a plurality of circular through holes, the bottom end of the flip plate abuts against the upper surface of the screen, and the fixed block is fixedly connected to the inner wall of the screen box on the side away from the flip plate.

[0016] The cam is connected with a toothed wheel which is located at the top of the wheel shaft and has a toothed wheel which is connected with a toothed wheel on the top of the wheel shaft.

[0017] Furthermore, a plurality of annular through holes are provided on the surface of the suction cup and are symmetrically distributed on the surface of the sleeve plate, and the initial position of the suction cup is on the same vertical plane as the screen.

[0018] Furthermore, a side of the connecting disk away from the sleeve shaft is fixedly connected to the lower end of the support plate, and an end of the sleeve shaft close to the connecting disk is rotatably connected to the outer surface of the connecting disk.

[0019] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention utilizes the gathering member and the connecting rod to cooperate with each other. The gathering and guiding mechanism can concentrate the soil sample on the screen more, reduce the dispersion and splashing of the soil during the screening process, and enable more soil particles to contact the screen, thereby improving the screening efficiency; secondly, the gathering and guiding mechanism can ensure that the soil particles are more evenly distributed on the screen during the screening process, reduce the leakage caused by the dispersion of particles, and improve the accuracy of screening; in addition, the gathering and guiding mechanism can exert additional force on the soil particles through a certain mechanical force, making it easier for them to pass through the screen, especially for some soil particles with high viscosity or difficult to separate, this enhancement effect is particularly obvious; in addition, the gathering and guiding mechanism can help reduce the phenomenon that large particles or impurities in the soil sometimes clog the screen, and by changing the movement trajectory or speed of the soil particles, the clogged particles are easier to be removed; and the gathering and guiding mechanism can also reduce the direct contact between workers and mechanical equipment during the screening process, thereby reducing the risk of work-related injuries.

[0020] (2) The present invention utilizes the mutual cooperation of the flip plate and the threaded rod, and through the oblique drainage mechanism, the graded screening of the soil can be realized, thereby improving the overall screening efficiency; secondly, the oblique drainage mechanism can automatically guide the large-particle material to the large-diameter mesh, thereby reducing the need for manual intervention and further accelerating the screening speed; in addition, by automatically guiding to the large-diameter mesh, the problem of large-particle material easily causing blockage in the small-diameter mesh can be effectively avoided, thereby improving the smoothness and accuracy of the screening; in addition, the graded screening helps to more accurately separate soil particles of different particle sizes, thereby meeting the soil particle size requirements of different application scenarios; and by reducing the residence time of large-particle material in the small-diameter mesh during the screening process, the service life of the screen can be extended and the replacement cost can be reduced.

[0021] (3) The present invention utilizes the suction cup and the connecting block to cooperate with each other. The annular adsorption mechanism can effectively separate fine particles, wet and sticky substances, etc. adhered to the screen or the surface of the material through the adsorption force during the process of material gathering, thereby reducing their interference in the screening process; secondly, regular adsorption and release actions can also help clean the screen, prevent the screen holes from being blocked, and maintain the patency of the screen; in addition, by reducing the adhesion of materials, the materials can pass through the screen more smoothly, thereby improving the screening speed and efficiency; and the annular adsorption mechanism can guide the materials to be screened along a predetermined path, reduce the disordered movement of the materials on the screen, and improve the accuracy and stability of the screening; furthermore, after reducing the adhesion of materials, the screening results are more accurate and can better meet the requirements for the particle size of the materials; at the same time, after the adhered impurities and fine particles are effectively separated, the possibility of them mixing into the target material can be reduced, thereby improving the quality of the screened products and by reducing the blockage and wear of the screen, the service life of the screen can be extended, and the frequency and cost of replacing the screen can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the main stereoscopic structure of the present invention; Figure 2 It is a schematic diagram of a partial three-dimensional structure of the gathering guide mechanism of the present invention; Figure 3 It is a three-dimensional schematic diagram of the position relationship structure of the external buckle and the connecting rod of the present invention; Figure 4 It is a three-dimensional structural schematic diagram of the position relationship between the telescopic cylinder and the external buckle of the present invention; Figure 5 It is a three-dimensional structural schematic diagram of the position relationship between the arc connecting plate and the rotating disk of the present invention; Figure 6 It is a three-dimensional structural schematic diagram of the position relationship between the threaded rod and the moving block of the present invention; Figure 7 It is a three-dimensional structural schematic diagram of the position relationship of the crank and the connecting buckle of the present invention; Figure 8 It is a three-dimensional structural schematic diagram of the position relationship between the sleeve plate and the suction cup of the present invention.

[0023] The numbers in the figure are: 1, vibrating screen; 11, screen mesh; 12, vibrating motor; 13, discharge port; 14, bracket; 15, screen box; 2, gathering guide mechanism; 21, support plate; 22, telescopic cylinder; 23, external buckle; 24, touch switch; 25, connecting rod; 26, gathering piece; 3, oblique drainage mechanism; 31, arc plate; 32, clamping shaft; 33, turntable; 34, threaded rod; 3 5. Moving block; 36. Short-circuit rod; 37. Flip plate; 38. Fixed block; 4. Annular adsorption mechanism; 41. Rotating shaft; 42. Crank; 43. Connecting buckle; 44. Snap plate; 45. Rotating rod shaft; 46. Deflection long block; 47. Rotating shaft; 48. Connecting block; 49. Connecting block; 410. Sleeve plate; 411. Suction cup; 412. Long shaft; 413. Sleeve shaft; 414. Connecting plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention; Embodiments of the present invention A soil multi-layer screening device, reference Figure 1 As shown, it includes a vibrating screen 1 of a rectangular frame structure, a screen 11 for screening materials in the form of mesh material is fixedly connected to the upper end of the vibrating screen 1, a screen box 15 for carrying the screen 11 and supporting the entire screening process is fixedly connected to the inner side of the vibrating screen 1 near the screen 11, a vibration motor 12 for driving the screen box 15 and the screen 11 to vibrate is fixedly connected to the outer wall of one side of the vibrating screen 1, a discharge port 13 for discharging screened materials is fixedly connected to the outer wall of one side of the vibrating screen 1 near the screen box 15, and a bracket 14 for supporting the screen box 15 and vibrating appropriately during the vibration process is fixedly connected to the lower end of the vibrating screen 1; In view of the above-mentioned soil multi-layer screening device, it can be specifically implemented as follows: A gathering guide mechanism 2 is provided above the screen 11, oblique drainage mechanisms 3 are provided on both sides of the inner wall of the screen box 15, and annular adsorption mechanisms 4 are provided on both sides of the screen 11; refer to Figure 2 As shown, the gathering and guiding mechanism 2 is used to help evenly distribute the soil on the surface of the screen 11; refer to Figure 3As shown, the gathering guide mechanism 2 includes a support plate 21 fixedly connected to the inner wall of the screen box 15, a telescopic cylinder 22 is fixedly connected to the upper surface of the support plate 21 on the side away from the vibration motor 12, an external buckle 23 is fixedly connected to the upper end of the telescopic cylinder 22 on the side away from the support plate 21, a touch switch 24 is fixedly connected to the upper surface of the external buckle 23 on the side away from the telescopic cylinder 22, a plurality of connecting rods 25 are rotatably connected to the outer wall of the external buckle 23, a plurality of connecting rods 25 are rotatably connected to one end away from the external buckle 23 with a gathering piece 26, and a plurality of gathering pieces 26 are fixedly connected to the bottom of one end away from the connecting rod 25 with 27; refer to Figure 4 As shown, one end of the touch switch 24 away from the external buckle 23 is electrically connected to the upper surface of the telescopic cylinder 22, and the outer wall of the external buckle 23 is provided with a plurality of inner slots, and a plurality of connecting rods 25 are rotatably connected to the plurality of inner slots provided on the outer wall of the external buckle 23, and the plurality of connecting rods 25 are distributed in a ring shape; Summary 1: Compared with the prior art in which soil splashes during screening, the gathering and guiding mechanism 2 of the present invention can concentrate the soil sample on the screen 11 more, reduce the dispersion and splashing of the soil during screening, and enable more soil particles to contact the screen 11, thereby improving the screening efficiency; secondly, through the gathering and guiding mechanism 2, it can be ensured that the soil particles are more evenly distributed on the screen 11 during screening, reduce the leakage caused by particle dispersion, and improve the accuracy of screening; in addition, the gathering and guiding mechanism 2 can exert additional force on the soil particles through a certain mechanical force, making it easier for them to pass through the screen 11, especially for some soil particles with high viscosity or difficult to separate, this enhancement effect is particularly obvious; in addition, the gathering and guiding mechanism 2 can help reduce the phenomenon that large particles or impurities in the soil sometimes clog the screen 11, and by changing the movement trajectory or speed of the soil particles, the clogged particles are easier to be removed; and the gathering and guiding mechanism 2 can also reduce the direct contact between workers and mechanical equipment during screening, thereby reducing the risk of work-related injuries.

[0025] refer to Figure 5 As shown, the oblique drainage mechanism 3 is used to directly guide large particle materials into the large-diameter mesh; refer to Figure 5 As shown, the oblique drainage mechanism 3 includes an arc-connecting plate 31 fixedly connected to the outer wall of one side of the gathering member 26, a clamping shaft 32 is provided inside the arc-connecting plate 31 on the side away from the gathering member 26, a rotating disk 33 is fixedly connected to the outer wall of one end of the clamping shaft 32 away from the arc-connecting plate 31, a threaded rod 34 is fixedly connected to the axis of the outer wall of the side of the rotating disk 33 away from the clamping shaft 32, a moving block 35 is provided on the outer wall of the threaded rod 34, both sides of the outer walls of the moving block 35 are rotatably connected to short-circuit rods 36, and both ends of the two short-circuit rods 36 away from the moving block 35 are rotatably connected to flip plates 37, and the bottom ends of the outer walls of the flip plates 37 away from the short-circuit rods 36 are fixedly connected to fixed blocks 38; refer to Figure 5 As shown, the end of the arc connecting plate 31 away from the gathering piece 26 is provided with a through arc groove, the clamping shaft 32 is clamped in the through arc groove of the end of the arc connecting plate 31 away from the gathering piece 26, and the clamping shaft 32 is fixedly connected to the eccentric position of the rotating disk 33; refer to Figure 6 As shown, the threaded rod 34 and the moving block 35 form a ball screw structure, a plurality of circular through holes are opened on the outer wall of the flip plate 37, the bottom end of the flip plate 37 abuts against the upper surface of the screen 11, and the fixed block 38 is fixedly connected to the inner wall of the screen box 15 on the side away from the flip plate 37; Summary 2: Compared with the clogging and accumulation of large particle materials in small-diameter meshes in the prior art, the present invention can achieve graded screening of soil through the oblique drainage mechanism 3 to improve the overall screening efficiency; secondly, the oblique drainage mechanism 3 can automatically guide the large particle materials to the large-diameter meshes, reducing the need for manual intervention and further accelerating the screening speed; in addition, by automatically guiding to the large-diameter meshes, the problem of large particle materials easily causing clogging in small-diameter meshes can be effectively avoided, thereby improving the smoothness and accuracy of screening; in addition, graded screening helps to more accurately separate soil particles of different particle sizes to meet the soil particle size requirements of different application scenarios; and by reducing the residence time of large particle materials in small-diameter meshes during the screening process, the service life of the screen 11 can be extended and the replacement cost can be reduced.

[0026] refer to Figure 7 As shown, the annular adsorption mechanism 4 is used to temporarily fix the materials when the materials are gathered; refer to Figure 7 As shown, the annular adsorption mechanism 4 includes a rotating shaft 41 fixedly connected to the outer wall of one end of the threaded rod 34 away from the rotating disk 33, the outer wall of the rotating shaft 41 on one side away from the threaded rod 34 is rotatably connected to a crank 42, the outer wall of the crank 42 on one side away from the rotating shaft 41 is rotatably connected to a connecting buckle 43, the outer wall of the end of the connecting buckle 43 away from the crank 42 is fixedly connected to a snap plate 44, the end of the snap plate 44 away from the connecting buckle 43 is fixedly connected to a rotating rod shaft 45, the end of the rotating rod shaft 45 away from the snap plate 44 is fixedly connected to a deflection long block 46, and the end of the deflection long block 46 away from the rotating rod shaft 45 is rotatably connected to a rotating rod Axle 47, a connecting block 48 is fixedly connected to the outer wall of the rotating shaft 47 on one side away from the deflection long block 46, a connecting block 49 is fixedly connected to the outer wall of the connecting block 48 on one end away from the rotating shaft 47, a sleeve plate 410 is fixedly connected to the outer wall of the connecting block 49 on one side away from the connecting block 48, a suction cup 411 is fixedly connected to the outer wall of the sleeve plate 410 on one side away from the connecting block 49, a long shaft 412 is fixedly connected to the outer wall of the sleeve plate 410 on one side away from the suction cup 411, a sleeve shaft 413 is sleeved on the outer wall of the long shaft 412 on one side away from the sleeve plate 410, and a connecting disc 414 is provided at one end of the sleeve shaft 413 away from the long shaft 412; refer to Figure 7 As shown, the surface of the suction cup 411 is provided with a plurality of annular through holes which are symmetrically distributed on the surface of the sleeve plate 410, and the initial position of the suction cup 411 is on the same vertical plane as the screen 11; refer to Figure 8 As shown, the side of the connecting disk 414 away from the sleeve shaft 413 is fixedly connected to the lower end of the support plate 21, and the end of the sleeve shaft 413 close to the connecting disk 414 is rotatably connected to the outer surface of the connecting disk 414; Summary 3: Compared with the prior art in which residues are left on the screen 11, the annular adsorption mechanism 4 of the present invention can effectively separate fine particles, wet and sticky substances, etc. adhering to the screen 11 or the surface of the material through adsorption force during the process of material gathering, thereby reducing their interference in the screening process; secondly, regular adsorption and release actions can also help clean the screen 11, prevent the screen holes from being blocked, and maintain the patency of the screen 11; in addition, by reducing the adhesion of materials, the materials can pass through the screen 11 more smoothly, thereby improving the screening speed and efficiency; and the annular adsorption mechanism 4 can guide the materials to be screened along a predetermined path, reduce the disordered movement of the materials on the screen 11, and improve the accuracy and stability of the screening; furthermore, after reducing the adhesion of the materials, the screening results are more accurate and can better meet the requirements for the particle size of the materials; at the same time, after the adhered impurities and fine particles are effectively separated, the possibility of them mixing into the target material can be reduced, the quality of the screened products can be improved, and by reducing the blockage and wear of the screen 11, the service life of the screen 11 can be extended, and the frequency and cost of replacing the screen 11 can be reduced.

[0027] The complete working principle and steps of the above embodiment are as follows: Initial definition: The vibrating screen 1 is a device used for material grading and screening, and its working process involves the coordinated operation of multiple key components. The whole process is aimed at separating the materials according to particle size through the screen 11, so as to achieve efficient material processing.

[0028] First, the material is evenly fed into the screen box 15 of the vibrating screen 1 from the feed port. The feed port is usually designed so that the material can be evenly distributed on the entire surface of the screen 11 of the screen box 15. This uniform distribution is crucial to the screening effect because it can ensure that the load of the screen 11 is evenly distributed and avoid local overload.

[0029] When the vibration motor 12 is started, the vibration it generates is transmitted to the screen box 15 through the vibrator. The main function of the vibration motor 12 is to generate periodic vibrations, which will cause the screen box 15 and the screen 11 to vibrate with a certain frequency and amplitude. The intensity and frequency of the vibration can be adjusted according to the properties of the material and the screening requirements to optimize the screening effect. The generation of vibrations causes the screen 11 to vibrate up and down continuously in the screen box 15, and also to produce a small swing in the horizontal direction. This vibration movement causes the material to continuously roll and move on the screen 11.

[0030] Under the action of vibration, larger particles will be intercepted by the screen 11 and stay on the screen 11. Smaller particles can penetrate the pores of the screen 11 and fall into the lower part of the screen box 15. At this time, a plurality of discharge ports 13 are provided at the lower part of the screen box 15 for discharging materials of different particle sizes. In this way, the vibrating screen 1 can effectively classify the materials into several different levels to meet the requirements of different particle sizes in the production process.

[0031] The support 14 is an important part of the vibrating screen 1. The support 14 is used to support the screen box 15 and the screen 11 to ensure that they remain stable during the vibration process. A good support and shock absorption system can improve the screening efficiency and the service life of the equipment; When using: The gathering guide mechanism 2 that helps to evenly distribute the soil on the surface of the screen 11 steps: like Figures 2 to 4 As shown, after the material is evenly fed into the screen box 15 of the vibrating screen 1 from the feed port, the operator presses the touch switch 24 at the upper end of the external buckle 23, and the activation of the touch switch 24 drives the telescopic cylinder 22 electrically connected to one end of the touch switch 24 to extend to the lower end, so that the external buckle 23 fixedly connected to the outer wall of the telescopic cylinder 22 will move downward synchronously, and then the multiple connecting rods 25 connected to the inner groove opened on the outer wall of the external buckle 23 will be displaced outwardly as the external buckle 23 moves downward, so that the rotating connecting rods 25 can be rotated to move outward. The gathering piece 26 on the outer wall of one end of the connecting rod 25 will realize the displacement action of moving outward on the slide rail provided on the lower surface of the support plate 21 as the connecting rod 25 deflects outward, and thus the 27 fixedly connected to the lower end of the gathering piece 26 will be displaced synchronously with the outward displacement action of the gathering piece 26 on the slide rail provided on the lower surface of the support plate 21. In this way, the simultaneous outward displacement action of multiple 27 distributed in an annular shape can realize the soil on the surface of the screen 11 being flattened and gathered around, thereby ensuring that all soil particles are in contact with the screen 11; Directly guide large particles into the oblique drainage mechanism with large-diameter mesh. 3 steps: like Figures 5 and 6As shown, when the gathering member 26 moves outward on the slide rail provided on the lower surface of the support plate 21, the arc connecting plate 31 fixedly connected to the outer wall of the gathering member 26 will be driven to move synchronously, and then the clamping shaft 32 clamped in the arc groove provided on the outer wall of one end of the arc connecting plate 31 will be pushed to move up and down in the arc groove, so that the turntable 33 eccentrically fixedly connected to the outer wall of one end of the clamping shaft 32 will rotate with the up and down movement of the clamping shaft 32, and then the threaded rod 34 fixedly connected to the outer wall of one side of the turntable 33 will rotate with the rotation of the turntable 33 The moving block 35 which forms a ball screw structure with the moving block 35 will slide on the outer wall of the threaded rod 34 to the side away from the turntable 33, and then the short-circuit rods 36 connected to the outer walls on both sides of the moving block 35 will deflect outwards as the moving block 35 slides. In this way, the flip plate 37 which is initially horizontal will deflect upward to an inclined state as the short-circuit rod 36 deflects. Therefore, the large particles in the soil falling into the screen box 15 will slide to the large-diameter mesh as the flip plate 37 tilts and rises; 4 steps of the ring adsorption mechanism used to temporarily fix the material when the material is gathered: like Figures 7 and 8 As shown, when the threaded rod 34 rotates, the rotating shaft 41 fixedly connected to the outer wall of the threaded rod 34 will rotate, and then the crank 42 rotatably connected to the outer wall of one side of the rotating shaft 41 will rotate, and the connecting buckle 43 fixedly connected to the outer wall of the bottom end of the crank 42 will rotate with the rotation of the crank 42, so the buckle plate 44 fixedly connected to one end of the connecting buckle 43 and the rotating rod shaft 45 fixedly connected to one end of the buckle plate 44 will deflect with the rotation of the crank 42, so the deflection long block 46 fixedly connected to the outer wall of one end of the rotating rod shaft 45 will also rotate with the deflection of the rotating rod shaft 45, so the rotation of the deflection long block 46 will pull the rotating shaft 47 fixedly connected to the outer wall of one side of the deflection long block 46 to rotate. The rotation of the rotating shaft 47 will cause the connecting block 48 fixedly connected to the outer wall of one side of the rotating shaft 47 to deflect and rotate, and the connecting block 49 fixedly connected to the outer wall of the connecting block 48 will also move together with the deflection and rotation of the connecting block 48, and then the outer wall sleeve 410 fixedly connected to one end of the connecting block 49 will first realize downward deflection with the deflection and rotation of the connecting block 49. In addition, the downward deflection of the sleeve 410 will also drive the long axis 412 and the sleeve 413 to deflect on the surface of the connecting plate 414, so that the suction cup 411 fixedly connected to the outer wall of one side of the sleeve 410 will contact the surface of the screen 11, so as to adsorb the material, and temporarily fix the material when the material is gathered, so as to reduce the mutual adhesion and accumulation of the material; Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A soil multi-layer screening device, comprising a vibrating screen (1) of a rectangular frame structure, wherein a screen (11) for screening materials in the form of mesh material is fixedly connected to the upper end of the vibrating screen (1), a screen box (15) for carrying the screen (11) and supporting the entire screening process is fixedly connected to the side of the vibrating screen (1) close to the screen (11), a vibration motor (12) for driving the screen box (15) and the screen (11) to vibrate is fixedly connected to the outer wall of one side of the vibrating screen (1), a discharge port (13) for discharging screened materials is fixedly connected to the outer wall of the side of the vibrating screen (1) close to the screen box (15), and a bracket (14) for supporting the screen box (15) and vibrating appropriately during the vibration process is fixedly connected to the lower end of the vibrating screen (1), characterized in that: A gathering guide mechanism (2) is provided above the screen (11), oblique drainage mechanisms (3) are provided on both sides of the inner wall of the screen box (15), and annular adsorption mechanisms (4) are provided on both sides of the screen (11); The gathering and guiding mechanism (2) is used to help evenly distribute the soil on the surface of the screen (11); The oblique drainage mechanism (3) is used to directly guide large particle materials into the large-diameter mesh; The annular adsorption mechanism (4) is used to temporarily fix the materials when the materials are gathered.

2. A soil multi-layer screening device according to claim 1, characterized in that: The gathering guide mechanism (2) comprises a support plate (21) fixedly connected to the inner wall of the screen box (15); a telescopic cylinder (22) is fixedly connected to the upper surface of the support plate (21) on a side away from the vibration motor (12); an external buckle (23) is fixedly connected to the upper end of the telescopic cylinder (22) on a side away from the support plate (21); a touch switch (24) is fixedly connected to the upper surface of the external buckle (23) on a side away from the telescopic cylinder (22); a plurality of connecting rods (25) are rotatably connected to the outer wall of the external buckle (23); a plurality of connecting rods (25) are rotatably connected to a gathering piece (26) at one end away from the external buckle (23); and a plurality of gathering pieces (26) are fixedly connected to (27) at the bottom of one end away from the connecting rod (25).

3. A soil multi-layer screening device according to claim 2, characterized in that: One end of the touch switch (24) away from the external buckle (23) is electrically connected to the upper surface of the telescopic cylinder (22); the outer wall of the external buckle (23) is provided with a plurality of inner slots; a plurality of connecting rods (25) are rotatably connected to the plurality of inner slots provided on the outer wall of the external buckle (23); and the plurality of connecting rods (25) are distributed in a ring shape.

4. A soil multi-layer screening device according to claim 2, characterized in that: A plurality of slide rails symmetrically distributed in an annular shape are provided on a surface of one side of the support plate (21) close to the gathering piece (26); the plurality of gathering pieces (26) are slidably connected to the interior of the plurality of slide rails symmetrically distributed in an annular shape on a surface of the support plate (21) close to the gathering piece (26); and the bottom ends of the plurality of (27) on a side away from the gathering piece (26) are attached to the upper surface of the screen (11).

5. A soil multi-layer screening device according to claim 2, characterized in that: The oblique drainage mechanism (3) comprises an arc connecting plate (31) fixedly connected to the outer wall of one side of the gathering member (26); a clamping shaft (32) is arranged inside the arc connecting plate (31) on a side away from the gathering member (26); a rotating disk (33) is fixedly connected to the outer wall of one end of the clamping shaft (32) away from the arc connecting plate (31); a threaded rod (34) is fixedly connected to the axis of the outer wall of the side of the rotating disk (33) away from the clamping shaft (32); a moving block (35) is arranged on the outer wall of the threaded rod (34); both sides of the outer walls of the moving block (35) are rotatably connected to short-circuit rods (36); both ends of the two short-circuit rods (36) away from the moving block (35) are rotatably connected to flip plates (37); and the bottom ends of the outer walls of the flip plates (37) away from the short-circuit rods (36) are fixedly connected to fixed blocks (38).

6. A soil multi-layer screening device according to claim 5, characterized in that: An arc-shaped groove is formed at one end of the arc-connecting plate (31) away from the gathering member (26), and the clamping shaft (32) is clamped inside the arc-shaped groove formed at one end of the arc-connecting plate (31) away from the gathering member (26). The clamping shaft (32) is fixedly connected to an eccentric position of the rotating disk (33).

7. A soil multi-layer screening device according to claim 5, characterized in that: The threaded rod (34) and the moving block (35) form a ball screw structure, the outer wall of the flip plate (37) is provided with a plurality of circular through holes, the bottom end of the flip plate (37) abuts against the upper surface of the screen (11), and the fixed block (38) is fixedly connected to the inner wall of the screen box (15) at a side away from the flip plate (37).

8. The soil multi-layer screening device according to claim 5, characterized in that: The annular adsorption mechanism (4) comprises a rotating shaft (41) fixedly connected to the outer wall of one end of the threaded rod (34) away from the rotating disk (33); the outer wall of the rotating shaft (41) away from the threaded rod (34) is rotatably connected to a crank (42); the outer wall of the crank (42) away from the rotating shaft (41) is rotatably connected to a connecting buckle (43); the outer wall of the end of the connecting buckle (43) away from the crank (42) is fixedly connected to a snap plate (44); the end of the snap plate (44) away from the connecting buckle (43) is fixedly connected to a rotating rod shaft (45); the end of the rotating rod shaft (45) away from the snap plate (44) is fixedly connected to a deflection long block (46); the end of the deflection long block (46) away from the rotating rod shaft (45) is rotatably connected to the rotating shaft ( 47), a connecting block (48) is fixedly connected to an outer wall of a side of the rotating shaft (47) away from the deflection long block (46), a connecting block (48) is fixedly connected to an outer wall of an end of the connecting block (48) away from the rotating shaft (47), a connecting block (49) is fixedly connected to an outer wall of a side of the connecting block (49) away from the connecting block (48), a suction cup (411) is fixedly connected to an outer wall of a side of the sleeve plate (410) away from the connecting block (49), a long axis (412) is fixedly connected to an outer wall of a side of the sleeve plate (410) away from the suction cup (411), a sleeve shaft (413) is sleeved on an outer wall of a side of the long axis (412) away from the sleeve plate (410), and a connecting disk (414) is provided at one end of the sleeve shaft (413) away from the long axis (412).

9. A soil multi-layer screening device according to claim 8, characterized in that: The surface of the suction cup (411) is provided with a plurality of annular through holes which are symmetrically distributed on the surface of the sleeve plate (410); the initial position of the suction cup (411) is on the same vertical plane as the screen (11).

10. The soil multi-layer screening device according to claim 8, characterized in that: The side of the connecting disk (414) away from the sleeve shaft (413) is fixedly connected to the lower end of the support plate (21), and the end of the sleeve shaft (413) close to the connecting disk (414) is rotatably connected to the outer surface of the connecting disk (414).

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