Equipment for preventing and treating agricultural non-point source pollution

Abstract

The invention discloses equipment for agricultural non-point source pollution control, which comprises a box body, a sieve plate is assembled at one end in the box body, a mixing box is assembled at the top of the other end in the box body, a connecting shaft extending into the box body is assembled at the bottom of the mixing box, and a spraying rod is assembled at the periphery of the connecting shaft; a cleaning mechanism is slidably arranged on the side, away from the connecting shaft, of the screen plate, and collecting mechanisms are arranged on the two sides of the screen plate. Through cooperation of the cleaning mechanism and the collecting mechanism, in the using process, when a scraper carries out movable cleaning work on a screen plate, agricultural films and other impurities on the screen plate can be pushed by the scraper to one side of the screen plate, then after the scraper moves to the position of a collecting box, an extension rod can be pushed to move in the direction of a through groove, and then a blocking plate moves into the through groove; and the agricultural film and other impurities are pushed to enter the collecting box and then move into the collecting box to be collected under the action of water flow.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural non-point source pollution sewage treatment, in particular to a device used for preventing and controlling agricultural non-point source pollution. Background Art

[0002] Non-point source pollution, also known as non-point source pollution, refers to pollution that does not have a fixed source. These pollutants enter the natural environment (such as the atmosphere, water bodies and soil). Specifically, non-point source pollution is usually composed of soil sediment particles, nutrients such as nitrogen and phosphorus, pesticides, atmospheric particulate matter, etc., and agricultural non-point source pollution is the most important and most widely distributed type of non-point source pollution. In agricultural production activities, sediment, nutrients, pesticides and other pollutants in farmland enter water bodies through farmland surface runoff, soil flow, farmland drainage and underground seepage during precipitation or irrigation, forming non-point source pollution. These pollutants mainly come from farmland fertilization, pesticide use, livestock and poultry, aquaculture and rural residents' lives.

[0003] Chinese Patent Publication No.: CN115028280A discloses an ecological restoration system for farmland tail water polluted by agricultural non-point source pollution, and its technical solution is: it includes an ecological box, the inlet end of the ecological box is fixedly connected to a horizontal plate, the inlet end of the ecological box is provided with a cleaning component, and the outlet end of the ecological box is provided with a neutralization component; the cleaning component includes a filter plate, and the neutralization component includes multiple drug pumps.

[0004] The above-mentioned device separates the non-degradable agricultural film in the water source through the cleaning component, and then scrapes the agricultural film attached to the filter plate through the cleaning rod, thereby preventing the filter plate from being blocked. However, in actual use, when the agricultural film is attached to the filter plate under the action of water flow, although the cleaning rod rotates to scrape off the agricultural film on the filter plate, the agricultural film will still be at the inlet of the box, and then will be attached to the filter plate under the action of water flow. When there is a lot of accumulation, it may also be entangled on the cleaning rod, so that the cleaning rod needs to be cleaned later, which has limitations.

[0005] Therefore, it is necessary to provide a device for preventing and controlling agricultural non-point source pollution to solve the above technical problems. Summary of the invention

[0006] The purpose of the present invention is to provide a device for preventing and controlling agricultural non-point source pollution, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for preventing and controlling agricultural non-point source pollution, comprising a box body, a sieve plate is installed at one end of the box body, a mixing box is installed at the top of the other end of the box body, a connecting shaft extending into the box body is installed at the bottom of the mixing box, and a spraying rod is installed at the periphery of the connecting shaft; a cleaning mechanism is slidably provided on the side of the sieve plate away from the connecting shaft, and collecting mechanisms are provided on both sides of the sieve plate, and when the cleaning mechanism moves to one side of the sieve plate, the cleaning mechanism drives the collecting mechanism to move in a direction away from the sieve plate; the cleaning mechanism comprises a scraper; the scraper is slidably provided on the side of the sieve plate away from the connecting shaft The scraper is rotatably connected to a reciprocating screw rod, and both ends of the reciprocating screw rod are rotatably connected to the side walls of the box body. When the reciprocating screw rod rotates, the reciprocating screw rod drives the scraper to make reciprocating horizontal motion on the screen plate; the collecting mechanism includes a collecting box; the collecting box is symmetrically arranged along the center of the screen plate, and the collecting box is installed on both sides of the inner wall of the box body, and the collecting box is arranged on both sides of the screen plate. A sealing plate is slidably arranged at one end of the collecting box close to the screen plate, and an extension rod is fixedly arranged at one end of the sealing plate close to the screen plate, and the extension rod is symmetrically arranged along the center of the sealing plate, and through grooves are arranged on both side walls of the box body, and the end of the sealing plate away from the screen plate is slidably arranged in the through groove.

[0008] As a further solution of the present invention: a second cavity slidably matched with the sieve plate is arranged at the top of the inner wall of the box, and a first cavity corresponding to the second cavity is arranged at the bottom of the inner wall of the box, the sieve plate is slidably installed in the box through the first cavity and the second cavity, and the sieve plate is sealed and slidably connected to the first cavity and the second cavity, a vibration plate is fixedly arranged on the top of the sieve plate, the vibration plate is arranged on the side of the sieve plate close to the scraper, and the top of the vibration plate is sealed and slidably connected to the second cavity.

[0009] As a further solution of the present invention: the bottom end of the vibration plate is sequentially provided with a concave portion and a convex portion, the concave portion and the convex portion array is arranged at the bottom end of the vibration plate, and the top of the scraper is provided with a matching portion, and the matching portion and the concave portion and the convex portion are slidably matched.

[0010] As a further solution of the present invention: sliding grooves are provided on both sides of the inner wall of the box body, and the sliding groove is provided on the side of the reciprocating screw rod close to the screen plate. A slider is slidably provided in the sliding groove, and the slider is symmetrically provided along the center of the sliding groove. A cutting knife is fixedly provided on the end of the slider close to the screen plate, and the side of the cutting knife close to the reciprocating screw rod slides in contact with the side wall of the reciprocating screw rod. A pull rope is fixedly provided on the relatively distant ends of the two groups of sliders, and the end of the pull rope away from the slider slides through the side wall of the box body and extends into the through groove, and a matching block is fixedly provided on the end of the pull rope away from the sliding groove, and the matching block is slidably provided in the through groove and slides in contact with the sealing plate.

[0011] As a further solution of the present invention: one end of the first cavity away from the sieve plate is connected to a spray hole, the end of the spray hole away from the first cavity is arranged on the side of the sieve plate close to the scraper, and a first one-way valve is arranged at the end of the spray hole, a piston is arranged at the bottom of the sieve plate, and the piston is sealingly and slidingly connected to the first cavity, a connecting pipe for connecting the first cavity and the second cavity is arranged in the side wall of the box body, a second one-way valve is arranged on the top of the box body, and the second one-way valve is arranged above the second cavity and connected to the second cavity.

[0012] As a further solution of the present invention: a mounting groove is slidably provided at one end of the scraper plate close to the sieve plate, a top block is slidably provided in the mounting groove, and an end of the top block away from the mounting groove is slidably fitted with the sieve plate.

[0013] As a further solution of the present invention: a mounting ring is rotatably provided at one end of the spray rod close to the connecting shaft, and the mounting ring is fixedly sleeved on the periphery of the connecting shaft, an adjusting rod is rotatably provided at the bottom of the spray rod, a movable ring is rotatably provided at one end of the adjusting rod away from the spray rod, a fixing rod is rotatably connected to the bottom periphery of the movable ring, and the end of the fixing rod away from the movable ring is fixedly connected to the screen plate.

[0014] As a further solution of the present invention: a circular hole is arranged at the bottom of the collection box, and connecting tubes are symmetrically arranged in the side wall of the box body, one end of the connecting tube is connected to one end of the first cavity, and the other end of the connecting tube is connected to the circular hole accordingly.

[0015] Compared with the prior art, the beneficial effect of the present invention is that through the cooperation of the cleaning mechanism and the collecting mechanism, when in use, when the scraper moves on the sieve plate for cleaning work, impurities such as agricultural film on the sieve plate will be pushed to one side of the sieve plate by the scraper, and then when the scraper moves to the position of the collecting box, it will push the extension rod to move in the direction of the through groove, and then let the blocking plate move into the through groove, and then the collecting box is opened, and impurities such as agricultural film are pushed into the collecting box and then moved to the collecting box under the action of water flow to be collected, and when the scraper moves on the sieve plate, through the cooperation of the matching part and the concave part and the convex part, the sieve plate presents an effect of first rising and then falling in the second cavity and the first cavity, so that the sieve plate has a vibration effect, and the sludge is shaken off by vibrating the sieve plate up and down, thereby avoiding the problem of sludge clogging the sieve holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the front three-dimensional structure of the present invention.

[0017] Figure 2 It is a structural schematic diagram of the spraying rod in the present invention.

[0018] Figure 3 For the present invention Figure 2Schematic diagram of the structure at A in the middle.

[0019] Figure 4 It is a schematic structural diagram of a front partial cross-section of the present invention.

[0020] Figure 5 For the present invention Figure 4 Schematic diagram of the structure at B in the figure.

[0021] Figure 6 It is a schematic diagram of the structure of the vibration plate in the present invention.

[0022] Figure 7 It is a schematic diagram of the structure of the collecting box in the present invention.

[0023] Figure 8 It is a structural schematic diagram of the middle section of the present invention.

[0024] Fig. 9 For the present invention Figure 8 Schematic diagram of the structure at D in the figure.

[0025] Fig.10 For the present invention Figure 8 Schematic diagram of the structure at C in the middle.

[0026] Fig.11 It is a schematic diagram of the structure of the scraper in the present invention.

[0027] In the figure: 1, box body; 101, mixing box; 2, sieve plate; 3, blocking plate; 4, sliding groove; 5, reciprocating screw; 6, extension rod; 7, first one-way valve; 8, scraper; 801, matching part; 9, through groove; 10, second one-way valve; 11, collecting box; 12, spray rod; 13, connecting shaft; 14, fixing rod; 15, movable ring; 16, adjusting rod; 17, vibration plate; 171, recess; 172, convex part; 18, top block; 19, mounting groove; 20, spray hole; 21, connecting pipe; 22, piston; 23, first cavity; 24, second cavity; 25, round hole; 401, pull rope; 402, cutting knife; 403, slider; 404, matching block. DETAILED DESCRIPTION

[0028] See also Figure 1-Figure 11In an embodiment of the present invention, a device for preventing and controlling agricultural non-point source pollution includes a box body 1, a sieve plate 2 is installed at one end of the box body 1, one end of the box body 1 corresponding to the sieve plate 2 is an inlet, and the other end of the box body 1 is an outlet, and a mixing box 101 is installed on the top of the other end of the box body 1, and a connecting shaft 13 extending into the box body 1 is installed at the bottom of the mixing box 101, and a spraying rod 12 is installed on the periphery of the connecting shaft 13; a cleaning mechanism is slidably provided on the side of the sieve plate 2 away from the connecting shaft 13, and collecting mechanisms are provided on both sides of the sieve plate 2. When the cleaning mechanism moves to one side of the sieve plate 2, the cleaning mechanism drives the collecting mechanism to move in a direction away from the sieve plate 2. When in use, when there is agricultural film or other impurities on the sieve plate 2, the cleaning mechanism is started to move on the sieve plate 2, and the agricultural film and other impurities on the sieve plate 2 are scraped off to the collecting mechanism, so as to complete the collection of impurities after cleaning the sieve plate 2.

[0029] Preferably, the mixing box 101 is used to contain neutralizing chemicals for treating trace elements and heavy metals contained in pesticides and fertilizers in water sources, and the mixing box 101 is also provided with a stirring blade for stirring the agent, a driving component for driving the stirring blade to rotate, and a delivery pump for conveying the agent. The connecting shaft 13 is a hollow structure, and one end close to the mixing box 101 extends into the mixing box 101 and is transmission-connected to the driving component, so that the driving component can drive the connecting shaft 13 to rotate, and a delivery pipe is fixedly installed at the output end of the delivery pump, and the delivery pipe passes through the connecting shaft 13 and is connected to the spraying rod 12, and a nozzle is provided on the spraying rod 12, so that the delivery pump sprays the agent in the mixing box 101 through the nozzle into the water source through the delivery pipe to achieve a neutralization effect, and a sealing cover is provided at the top end of the connecting shaft 13 to prevent the agent in the mixing box 101 from entering the connecting shaft 13. The relevant specific structures for conveying the agent are all conventional settings in the prior art and will not be described in detail here.

[0030] See also Figure 1-Figure 4 , Figure 6 Preferably, the cleaning mechanism includes a scraper 8; the scraper 8 is slidably arranged on a side of the sieve plate 2 away from the connecting shaft 13, and the scraper 8 is fitted with the surface of the sieve plate 2, so that the surface of the sieve plate 2 is cleaned when the scraper 8 slides. The center of the scraper 8 is rotatably connected to the reciprocating screw rod 5. When the reciprocating screw rod 5 rotates, the scraper 8 fits with the side wall of the sieve plate 2, so the scraper 8 will reciprocate on the surface of the sieve plate 2 under the drive of the reciprocating screw rod 5, so as to achieve the effect of reciprocating cleaning of the surface of the sieve plate 2. The two ends of the reciprocating screw rod 5 are rotatably connected to the side walls of the box body 1. When the reciprocating screw rod 5 rotates, the reciprocating screw rod 5 drives the scraper 8 to make reciprocating horizontal motion on the sieve plate 2. One end of the reciprocating screw rod 5 is provided with a driving member for driving the reciprocating screw rod 5 to rotate. The driving member can be a turbine. When the reciprocating screw rod 5 is driven by the turbine, the turbine rotates under the action of the water flow. The reciprocating screw rod 5 can also be directly driven by setting a motor.

[0031] See also Figure 1-Figure 2 , Figure 7 Preferably, the collecting mechanism includes a collecting box 11; the collecting box 11 is provided with a plurality of groups of through holes in an array on one side wall of the sieve plate 2, the collecting box 11 is symmetrically arranged along the center of the sieve plate 2, and the collecting box 11 is installed on both sides of the inner wall of the box body 1, and the collecting box 11 is arranged on both sides of the sieve plate 2, and the collecting box 11 is tightly fitted with the side walls of the sieve plate 2. When the scraper 8 moves on the sieve plate 2 for cleaning, the agricultural film and other impurities on the sieve plate 2 will be pushed to the side of the sieve plate 2 by the scraper 8, and then when the scraper 8 moves to the position of the collecting box 11, the agricultural film and other impurities are pushed into the collecting box 11, and then moved to the collecting box 11 under the action of the water flow to be collected, so as to prevent the agricultural film and other impurities collected in the collecting box 11 from easily coming out from the end of the collecting box 11 close to the sieve plate 2, and at the same time, in the process of moving the box body 1, the agricultural film and other impurities will not come out from the collecting box 11, Therefore, a sealing plate 3 is slidably provided at one end of the collecting box 11 close to the sieve plate 2, and an extension rod 6 is fixedly provided at one end of the sealing plate 3 close to the sieve plate 2, and the extension rod 6 is symmetrically arranged along the center of the sealing plate 3, and through grooves 9 are arranged on both side walls of the box body 1, and the end of the sealing plate 3 away from the sieve plate 2 is slidably arranged in the through groove 9, and the sealing plate 3 and the through groove 9 are elastically connected by a spring. When in use, when the scraper 8 moves to the position of the extension rod 6, it will push the extension rod 6 to move in the direction of the through groove 9, and then the sealing plate 3 moves into the through groove 9, and then the collecting box 11 is opened, so as to facilitate the entry of impurities such as agricultural film into the collecting box 11, and when the scraper 8 moves to the other end under the action of the reciprocating screw rod 5, the sealing plate 3 moves and resets under the action of its corresponding spring, thereby blocking the collecting box 11, and preventing the agricultural film impurities collected inside it from coming out of the collecting box 11.

[0032] Preferably, in order to better clean the impurities such as agricultural film collected in the collection box 11, a bottom plate is assembled and provided at the end of the collection box 11 away from the screen plate 2 by means of a snap-fitting manner. When the collection box 11 needs to be cleaned, the bottom plate can be removed from the collection box 11 to complete the cleaning of the collection box 11.

[0033] See also Figure 1 , Figure 4 , Figure 8-Figure 10Preferably, a second cavity 24 slidably matched with the sieve plate 2 is provided at the top of the inner wall of the box body 1, and a first cavity 23 corresponding to the second cavity 24 is provided at the bottom of the inner wall of the box body 1. The sieve plate 2 is slidably installed in the box body 1 through the first cavity 23 and the second cavity 24, and the sieve plate 2 is sealed and slidably connected to the first cavity 23 and the second cavity 24. A spring is provided between the top of the sieve plate 2 and the second cavity 24, so that the sieve plate 2 can be quickly moved and reset under the action of the spring after moving upward. A vibration plate 17 is fixedly provided at the top of the sieve plate 2, and the vibration plate 17 is provided on the side of the sieve plate 2 close to the scraper 8. The top of the vibration plate 17 is sealed and slidably connected to the second cavity 24.

[0034] Further, preferably, the bottom end of the vibration plate 17 is sequentially provided with a concave portion 171 and a convex portion 172, the concave portion 171 is a semicircular groove, the convex portion 172 is a semicircular protrusion, the concave portion 171 and the convex portion 172 are arranged in an array at the bottom end of the vibration plate 17, and multiple groups of concave portions 171 and convex portions 172 form a wavy shape, and the top of the scraper 8 is provided with a matching portion 801, and the matching portion 801 and the concave portion 171 and the convex portion 172 are all slidably matched. When the scraper 8 moves on the screen plate 2, through the matching portion 801 01 and the cooperation between the concave portion 171 and the convex portion 172 makes the sieve plate 2 rise first and then fall in the second cavity 24 and the first cavity 23, so that the sieve plate 2 has a vibration effect. Because agricultural sewage inevitably contains sludge, and when there is sludge in the sieve holes, the horizontally moving scraper 8 cannot clean the sludge in the sieve holes. When the sieve holes on the sieve plate 2 are blocked by sludge, the sieve plate 2 is vibrated up and down to shake the sludge down, thereby avoiding the problem of sludge blocking the sieve holes.

[0035] Furthermore, preferably, the end of the first cavity 23 away from the sieve plate 2 is connected to a spray hole 20, and the end of the spray hole 20 away from the first cavity 23 is arranged on the side of the sieve plate 2 close to the scraper 8, that is, the end opening of the spray hole 20 is at the bottom of the inner wall of the box body 1, and the spray holes 20 are arranged in a linear array in the movement direction of the scraper 8. A first one-way valve 7 is arranged at the end of the spray hole 20. The spray hole 20 can only exhaust air but not take in air through the setting of the first one-way valve 7. A piston 22 is provided at the bottom of the sieve plate 2, and the piston 22 is sealingly and slidably connected to the first cavity 23. A connecting pipe 21 for connecting the first cavity 23 and the second cavity 24 is provided in the side wall of the box body 1. A second one-way valve 10 is provided on the top of the box body 1, and the second one-way valve 10 is arranged above the second cavity 24 and connected to the second cavity 24, that is, under the action of the second one-way valve 10, the second cavity 24 is Only air can enter the cavity 24 but not exit. Therefore, when in use, when the sieve plate 2 moves upward under the action of the scraper 8, the gas in the second cavity 24 enters the first cavity 23 through the connecting pipe 21. Then, when the sieve plate 2 moves downward, negative pressure is generated in the second cavity 24. Therefore, the second one-way valve 10 will be opened at this time, allowing external air to enter the second cavity 24. At the same time, the first cavity 23 moves downward under the action of the sieve plate 2, and the gas in the compressed first cavity 23 enters the spray hole 20 and then is sprayed to the outside through the first one-way valve 7. The gas sprayed from the first one-way valve 7 will impact the sludge on the bottom of the inner wall of the box body 1, avoiding large pieces of sludge that may exist between the sieve plate 2 and the inlet, causing the scraper 8 to push the large pieces of sludge to the entrance of the collection box 11 when moving, thereby blocking the collection box 11 and preventing impurities such as agricultural film from entering the collection box 11.

[0036] See also Figure 7 Preferably, a circular hole 25 is provided at the bottom of the collecting box 11, and a connecting pipe is symmetrically provided in the side wall of the box body 1, one end of the connecting pipe is connected with one end of the first cavity 23, and the other end of the connecting pipe is correspondingly connected with the circular hole 25. When the first cavity 23 moves downward, a part of the gas enters the spray hole 20 and is sprayed out through the first one-way valve 7, and the other part of the gas is sprayed into the collecting box 11 from the circular hole 25 through the connecting pipe 21, so that the impurities such as agricultural film in the collecting box 11 are rolled, so that the sludge on the impurities such as agricultural film falls off under the action of the gas, so that there will be no sludge on it during subsequent cleaning, and more impurities such as agricultural film can be collected in the collecting box 11.

[0037] See also Figure 1 , Figure 4-Figure 5 , Figure 7Preferably, sliding grooves 4 are provided on both sides of the inner wall of the box body 1, and the sliding groove 4 is arranged on the side of the reciprocating screw rod 5 close to the screen plate 2. A slider 403 is slidably arranged in the sliding groove 4, and the slider 403 is symmetrically arranged along the center of the sliding groove 4, and a cutting knife 402 is fixedly arranged on the end of the slider 403 close to the screen plate 2, and the side of the cutting knife 402 close to the reciprocating screw rod 5 is slidably fitted with the side wall of the reciprocating screw rod 5, and a pull rope 401 is fixedly provided on the relatively far ends of the two groups of sliders 403, and a spring is arranged between the slider 403 and the sliding groove 4, so that the slider 403 can automatically reset after being pulled by the pull rope 401, and the end of the pull rope 401 away from the slider 403 slides through the side wall of the box body 1 and extends into the through groove 9, and the end of the pull rope 401 away from the sliding groove 4 is fixedly provided with a matching block 404, which is slidably arranged in the through groove 9 and slidably fits with the blocking plate 3, so that When in use, in the initial state, the two groups of sliders 403 are in contact with each other, so that the cutting knife 402 is in contact with the side wall of the reciprocating screw 5; since the reciprocating screw 5 is arranged in the middle of the end of the box body 1, part of the agricultural film may be wrapped around the reciprocating screw 5 under the action of the water flow. If it is not processed, it will affect the movement of the scraper 8. When the scraper 8 moves under the action of the reciprocating screw 5, the agricultural film wrapped on the reciprocating screw 5 will be pushed toward the cutting knife 402. When the blocking plate 3 moves into the through groove 9 under the cooperation of the extension rod 6 and the scraper 8, the blocking plate 3 will push the matching block 404 and drive the slider 403 to slide in the sliding groove 4 through the pull rope 401, so that the cutting knife 402 moves away from the reciprocating screw 5, thereby cutting off the agricultural film on the reciprocating screw 5, and the cut agricultural film will move into the opened collection box 11 under the action of the water flow.

[0038] See also Figure 8-Figure 9 , Fig.11 Preferably, an installation groove 19 is slidably provided at one end of the scraper 8 close to the sieve plate 2, and a top block 18 is slidably provided in the installation groove 19, and a spring is provided between the top block 18 and the installation groove 19, and the two sides of the top block 18 close to the sieve plate 2 are symmetrically inclined, and the two ends of the top block 18 in the up and down directions are also inclined, and the end of the top block 18 away from the installation groove 19 is slidably fitted with the sieve plate 2. In order to avoid the sieve plate 2 being unable to vibrate away the sludge blocked in the sieve hole by vibration alone, when the scraper 8 moves, when the position of the top block 18 corresponds to the sieve hole, the top block 18 extends into the sieve hole under the action of its corresponding spring, thereby pushing out the sludge in the sieve hole. In the process, the sieve plate 2 will vibrate, and the top block 18 will be squeezed into the installation groove 19 under the action of the inclined surface provided at the end of the top block 18. Of course, the end of the top block 18 can also be a semicircular structure.

[0039] See also Figure 2-Figure 3Preferably, a mounting ring is rotatably provided at one end of the spraying rod 12 close to the connecting shaft 13, and the mounting ring is fixedly sleeved on the periphery of the connecting shaft 13, an adjusting rod 16 is rotatably provided at the bottom of the spraying rod 12, and a movable ring 15 is rotatably provided at one end of the adjusting rod 16 away from the spraying rod 12, and the adjusting rod 16 is tilted. In this way, when the movable ring 15 moves up and down, the spraying rod 12 can be pushed to swing under the action of the mounting ring through the adjusting rod 16, and the bottom periphery of the movable ring 15 is rotatably connected with a fixing rod 14, and one end of the fixing rod 14 away from the movable ring 15 is fixedly connected to the sieve plate 2, and the movable ring 15 is sleeved on the periphery of the connecting shaft 13. When in use, when the sieve plate 2 moves back and forth up and down, the movable ring 15 is driven by the fixing rod 14 to reciprocate up and down on the connecting shaft 13, and then the spraying rod 12 is swung around the mounting ring through the adjusting rod 16, thereby increasing the range of the spraying agent sprayed by the spraying rod 12 and improving the efficiency and range of neutralization.

Claims

1. A device for preventing and controlling agricultural non-point source pollution, comprising a box, a sieve plate is installed at one end of the box, a mixing box is installed at the top of the other end of the box, a connecting shaft extending into the box is installed at the bottom of the mixing box, and a spraying rod is installed at the periphery of the connecting shaft; characterized in that: A cleaning mechanism is slidably provided on one side of the sieve plate away from the connecting shaft, and collecting mechanisms are provided on both sides of the sieve plate, and when the cleaning mechanism moves toward one side of the sieve plate, the cleaning mechanism drives the collecting mechanism to move in the direction away from the sieve plate; the cleaning mechanism includes a scraper; the scraper is slidably provided on one side of the sieve plate away from the connecting shaft, and the center of the scraper is rotatably connected to a reciprocating screw rod, and the two ends of the reciprocating screw rod are rotatably connected to the side walls of the box body, and when the reciprocating screw rod rotates, the reciprocating screw rod drives the scraper to make reciprocating horizontal motion on the sieve plate; the collecting mechanism includes a collecting box; the collecting box is symmetrically arranged along the center of the sieve plate, and the collecting boxes are installed on both sides of the inner wall of the box body, and the collecting boxes are arranged on both sides of the sieve plate, and a blocking plate is slidably provided on one end of the collecting box close to the sieve plate, and an extension rod is fixedly provided on one end of the blocking plate close to the sieve plate, and the extension rod is symmetrically arranged along the center of the blocking plate, and through grooves are provided on both side walls of the box body, and one end of the blocking plate away from the sieve plate is slidably arranged in the through groove.

2. The device for preventing and controlling agricultural non-point source pollution according to claim 1, characterized in that: A second cavity which slides with the sieve plate is arranged at the top of the inner wall of the box, and a first cavity corresponding to the second cavity is arranged at the bottom of the inner wall of the box. The sieve plate is slidably installed in the box through the first cavity and the second cavity, and the sieve plate is sealed and slidably connected to the first cavity and the second cavity. A vibration plate is fixedly arranged at the top of the sieve plate, and the vibration plate is arranged on the side of the sieve plate close to the scraper plate. The top of the vibration plate is sealed and slidably connected to the second cavity.

3. The device for preventing and controlling agricultural non-point source pollution according to claim 2, characterized in that: The bottom end of the vibration plate is provided with concave parts and convex parts in sequence, and the concave parts and convex parts are arranged in array at the bottom end of the vibration plate. The top of the scraper is provided with a matching part, and the matching part and the concave parts and convex parts are all slidably matched.

4. The device for preventing and controlling agricultural non-point source pollution according to claim 1, characterized in that: Sliding grooves are provided on both sides of the inner wall of the box body, and the sliding groove is provided on the side of the reciprocating screw rod close to the screen plate. A slider is slidably provided in the sliding groove, and the slider is symmetrically provided along the center of the sliding groove. A cutting knife is fixedly provided on the end of the slider close to the screen plate, and the side of the cutting knife close to the reciprocating screw rod slides in contact with the side wall of the reciprocating screw rod. A pull rope is fixedly provided on the relatively distant ends of the two groups of sliders, and the end of the pull rope away from the slider slides through the side wall of the box body and extends into the through groove, and a matching block is fixedly provided on the end of the pull rope away from the sliding groove, and the matching block is slidably provided in the through groove and slides in contact with the sealing plate.

5. The device for preventing and controlling agricultural non-point source pollution according to claim 2, characterized in that: One end of the first cavity away from the sieve plate is connected to a spray hole, and the end of the spray hole away from the first cavity is arranged on the side of the sieve plate close to the scraper plate, and a first one-way valve is arranged at the end of the spray hole, a piston is arranged at the bottom of the sieve plate, and the piston is sealingly and slidingly connected to the first cavity, a connecting pipe for connecting the first cavity and the second cavity is arranged in the side wall of the box body, and a second one-way valve is arranged on the top of the box body, and the second one-way valve is arranged above the second cavity and connected to the second cavity.

6. The device for preventing and controlling agricultural non-point source pollution according to claim 1, characterized in that: The end of the scraper plate close to the sieve plate is slidably provided with a mounting groove, a top block is slidably provided in the mounting groove, and the end of the top block away from the mounting groove is slidably fitted with the sieve plate.

7. The device for preventing and controlling agricultural non-point source pollution according to claim 3, characterized in that: The spray rod is rotatably provided with a mounting ring at one end close to the connecting shaft, and the mounting ring is fixedly sleeved on the periphery of the connecting shaft, an adjusting rod is rotatably provided at the bottom of the spray rod, and a movable ring is rotatably provided at one end of the adjusting rod away from the spray rod, a fixing rod is rotatably connected to the bottom periphery of the movable ring, and the end of the fixing rod away from the movable ring is fixedly connected to the screen plate.

8. The device for preventing and controlling agricultural non-point source pollution according to claim 5, characterized in that: A circular hole is arranged at the bottom of the collecting box, and connecting tubes are symmetrically arranged in the side wall of the box body, one end of the connecting tube is connected with one end of the first cavity, and the other end of the connecting tube is connected with the circular hole correspondingly.

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