Farmland non-point source and heavy metal pollution prevention and control system

Abstract

The invention relates to the technical field of farmland heavy metal pollution, and discloses a farmland non-point source and heavy metal pollution prevention and control system which comprises a mounting unit, a transmission unit and a knocking unit. The mounting unit comprises a cart base, a rectangular notch is formed in the middle of the cart base, and universal wheels are arranged on the periphery of the bottom of the cart base; a protective shell is mounted above the cart base, an inner protective shell is arranged in an inner cavity of the protective shell, a placement notch is formed in one side wall of the inner protective shell, a treatment box is further mounted in the inner cavity of the protective shell, and a feeding notch is formed in one side wall of the treatment box. According to the farmland non-point source extraction device, the driving assembly controls the shovel body to shovel soil in a farmland non-point source suddenly, so that the shoveled soil can enter the treatment box, and meanwhile, the driving assembly can drive only the stirring rod to rotate, so that the entering soil and extraction liquid can be mixed; the separation of metal substances contained in the soil is accelerated, and the subsequent detection of the sudden metal pollution degree is facilitated.

Description

Technical Field

[0001] The invention belongs to the technical field of farmland heavy metal pollution, and in particular relates to a farmland non-point source and heavy metal pollution prevention and control system. Background Art

[0002] Non-point source and heavy metal pollution in farmland mainly comes from pollution in planting methods and residues of pesticides and fertilizers. In addition, since the quality of pesticides and fertilizers in my country varies greatly, the phenomenon of farmers' indiscriminate use of pesticides has aggravated the pollution of land and environment. For this reason, technicians have introduced a non-point source and heavy metal pollution prevention and control system for farmland, which is mainly used for spraying farmland conditioning liquid and monitoring environmental space, etc., to monitor farmland in real time, so that technicians can take corresponding prevention and control measures for non-point source and heavy metals in farmland.

[0003] However, the existing methods for preventing and controlling farmland non-point source metal pollution mostly collect soil from farmland non-point sources, and then classify it by extracting the metals contained in the collected soil, so as to determine the impact of metals in farmland non-point sources on the soil, and then carry out subsequent treatment. However, sampling and experimental separation often require a long wait time, resulting in the failure to discover the pollution in the first time when it is close to being serious, resulting in large tracts of farmland being abandoned.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0006] A farmland non-point source and heavy metal pollution prevention and control system, comprising an installation unit, a transmission unit and a knocking unit: the installation unit comprises a cart base, a rectangular notch is provided in the middle of the cart base, universal wheels are provided around the bottom of the cart base, a protective shell is installed above the cart base, an inner protective shell is provided in the inner cavity of the protective shell, a placement notch is provided on one side wall of the inner protective shell, a processing box is also installed in the inner cavity of the protective shell, a feed notch is provided on one side wall of the processing box, a liquid inlet pipe runs through the processing box and the protective shell, an arc-shaped mounting plate is also fixedly installed in the inner cavity of the inner protective shell, and a mounting notch is provided on the arc-shaped mounting plate;

[0007] The knocking unit comprises an inclined plate, which is installed between the installation slot and the feed slot. A mounting cylinder is provided at the bottom of the inclined plate. A limited position slot is provided between the mounting cylinder and the arc-shaped mounting plate. A sliding slot is provided above the mounting cylinder. A striking rod is movably penetrated in the sliding slot.

[0008] The transmission unit comprises a driving assembly and a shovel body. The driving assembly is used to drive the shovel body to rotate, and the driving assembly can also be used to drive the liquid inlet pipeline to open.

[0009] As a preferred embodiment of the present invention, the driving assembly includes a dual-axis motor, which is arranged on a trolley base, and a first rotating rod and a second rotating rod are fixedly installed at both ends of the dual-axis motor, and a pulley is fixedly connected to the end of the first rotating rod away from the dual-axis motor, a belt is arranged on the pulley, and a pulley is also arranged at the other end of the belt, and a rotating rod is fixedly installed on the pulley, the rotating rod rotates and passes through the processing box, and a plurality of stirring rods that are symmetrical to each other are fixedly installed on the rotating rod.

[0010] As a preferred embodiment of the present invention, a connecting rod is fixedly mounted on the second rotating rod, a shovel body is fixedly connected to a side wall at the bottom of the connecting rod, a guide plate is also fixedly mounted on the connecting rod, and a material guide plate is also provided on the connecting rod.

[0011] As a preferred embodiment of the present invention, a first sliding mechanism is arranged between the connecting rod and the material guide plate, the first sliding mechanism includes a first slide groove, the first slide groove is opened on the connecting rod, a first slider is slidably installed in the inner cavity of the first slide groove, an end of the first slider above away from the first slide groove is fixedly connected to the material guide plate, a first return spring is fixedly connected above the first slider, and an end of the first return spring away from the first slider is fixedly connected above the inner cavity of the first slide groove.

[0012] As a preferred embodiment of the present invention, a wedge-shaped block is provided in the inner cavity of the mounting tube, and the wedge-shaped block movably passes through the limiting groove, and slide rails are provided on the opposite side walls of the wedge-shaped block, and the two slide rails are respectively arranged on the opposite side walls of the inner cavity of the mounting tube, and a side wall of the wedge-shaped block away from the second rotating rod is fixedly connected to a second return spring, and the other end of the second return spring is fixedly connected to the inner wall of the mounting tube.

[0013] As a preferred embodiment of the present invention, two side walls opposite to each other in the inner cavity of the installation cylinder are provided with special-shaped slide grooves, the two special-shaped slide grooves are symmetrical to each other, guide sliders are slidably installed in the inner cavities of the two special-shaped slide grooves, the two guide sliders are symmetrical to each other, and a fixing plate is fixedly connected to one side wall opposite to the two guide sliders.

[0014] As a preferred embodiment of the present invention, two side walls opposite to each other in the inner cavity of the installation cylinder are provided with special-shaped slide grooves, the two special-shaped slide grooves are symmetrical to each other, guide sliders are slidably installed in the inner cavities of the two special-shaped slide grooves, the two guide sliders are symmetrical to each other, and a fixing plate is fixedly connected to one side wall opposite to the two guide sliders.

[0015] As a preferred embodiment of the present invention, a second sliding mechanism is provided above the inner cavity of the processing box, and the second sliding mechanism includes two movable slide grooves, and the two movable slide grooves are respectively provided above the inner cavity of the processing box, and the two movable slide grooves are symmetrical to each other, and movable sliders are slidably installed in the inner cavities of the two movable slide grooves, and the two movable sliders are symmetrical to each other, and a sealing plate is fixedly connected to the bottom of the two movable sliders, and a driving plate is fixedly connected to the bottom of the sealing plate, and the driving plate and the stirring rod fit together.

[0016] As a preferred embodiment of the present invention, one end of the two movable sliders is fixedly connected to a third return spring, and one end of the two third return springs away from the movable sliders is fixedly connected to the inner wall of the movable slide groove.

[0017] As a preferred embodiment of the present invention, the processing box and the trolley base are further provided with slots, and the inner cavity of the slots is provided with two mutually symmetrical electrically controlled sealing flip plates.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention can remove the pollutants in the farmland surface source by controlling the shovel body through the driving component, so that the removed soil can enter the treatment box. At the same time, because the driving component can also rotate the stirring rod, the entering soil and the extract can be mixed, so that the separation of metal objects contained in the soil is accelerated, which is convenient for the subsequent detection of the degree of metal pollution in the pollutants.

[0020] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In the attached picture:

[0022] Figure 1 It is a three-dimensional structural diagram of a farmland non-point source and heavy metal pollution prevention and control system;

[0023] Figure 2 A schematic diagram of the protective shell structure of a farmland non-point source and heavy metal pollution prevention and control system;

[0024] Figure 3 A schematic diagram of the inner structure of a protective shell of a farmland non-point source and heavy metal pollution prevention and control system;

[0025] Figure 4 It is a schematic diagram of the rear view structure of the inner cavity of a protective shell of a farmland non-point source and heavy metal pollution prevention and control system;

[0026] Figure 5 It is a schematic diagram of the upward structure of a cart base of a farmland non-point source and heavy metal pollution prevention and control system;

[0027] Figure 6 It is a schematic diagram of the partial structure of a cart base of a farmland non-point source and heavy metal pollution prevention and control system when viewed from above;

[0028] Figure 7 A farmland non-point source and heavy metal pollution prevention and control system Figure 6 The enlarged structural diagram at A in the middle;

[0029] Figure 8 A schematic diagram of the inner cavity structure of an installation tube of a farmland non-point source and heavy metal pollution prevention and control system;

[0030] Fig. 9 A farmland non-point source and heavy metal pollution prevention and control system Figure 8 The enlarged structural diagram at B in the middle;

[0031] Fig.10 The figure is a schematic diagram of the sealing plate structure of a farmland non-point source and heavy metal pollution prevention and control system.

[0032] In the figure:

[0033] 100, mounting unit; 101, cart base; 1011, universal wheel; 1012, protective shell; 1013, liquid inlet pipe; 1014, rectangular notch; 102, inner protective shell; 1021, placement notch; 104, arc-shaped mounting plate; 1041, mounting notch; 1042, limiting notch; 105, processing box; 1051, feeding notch; 106, sealing plate; 1061, driving plate; 1062, moving slide; 1063, moving slider; 1064, third return spring;

[0034] 200, transmission unit; 201, dual-axis motor; 2011, first rotating rod; 2012, pulley; 2013, belt; 202, second rotating rod; 2021, connecting rod; 2022, shovel body; 2023, guide plate; 2024, guide plate; 2025, first slide groove; 2026, first slider; 2027, first return spring; 204, rotating rod; 2041, stirring rod; 2042, electric control sealing flip plate;

[0035] 300, striking unit; 301, tilting plate; 302, mounting tube; 3021, wedge block; 3022, slide rail; 3023, second return spring; 3024, sliding notch; 303, special-shaped slide groove; 3031, guide slider; 3032, fixing plate; 3033, telescopic rod; 3034, impact rod. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0037] Embodiment 1:

[0038] like Figures 1 to 10 As shown, a farmland non-point source and heavy metal pollution prevention and control system includes an installation unit 100, a transmission unit 200 and a knocking unit 300: the installation unit 100 includes a cart base 101, a rectangular notch 1014 is opened in the middle of the cart base 101, universal wheels 1011 are arranged around the bottom of the cart base 101, a protective shell 1012 is installed above the cart base 101, an inner protective shell 102 is arranged in the inner cavity of the protective shell 1012, a placement notch 1021 is opened on one side wall of the inner protective shell 102, a processing box 105 is also installed in the inner cavity of the protective shell 1012, a feed notch 1051 is opened on one side wall of the processing box 105, a liquid inlet pipe 1013 runs through the processing box 105 and the protective shell 1012, and the inner An arc-shaped mounting plate 104 is also fixedly installed in the inner cavity of the protective shell 102, and a mounting slot 1041 is provided on the arc-shaped mounting plate 104; the knocking unit 300 includes an inclined plate 301, which is installed between the mounting slot 1041 and the feed slot 1051, and a mounting cylinder 302 is provided at the bottom of the inclined plate 301, and a limiting slot 1042 is provided between the mounting cylinder 302 and the arc-shaped mounting plate 104, and a sliding slot 3024 is provided above the mounting cylinder 302, and an impact rod 3034 is movably penetrated in the sliding slot 3024; the transmission unit 200 includes a driving assembly and a shovel body 2022, and the driving assembly is used to drive the shovel body 2022 to rotate, and the driving assembly can also be used to drive the liquid inlet pipe 1013 to open. By controlling the driving component to control the shovel body 2022, the sudden pollution in the farmland surface source can be removed, so that the removed soil can enter the treatment box 105. At the same time, because the driving component can also rotate the stirring rod 2041, the incoming soil and the extract can be mixed, so as to accelerate the separation of the metal contained in the soil, which is convenient for the subsequent detection of the degree of metal pollution in the sudden pollution.

[0039] like Figure 3 to Figure 4As shown, in a specific embodiment, the driving assembly includes a dual-axis motor 201, and the dual-axis motor 201 is arranged on the cart base 101. The first rotating rod 2011 and the second rotating rod 202 are fixedly installed at both ends of the dual-axis motor 201, and the end of the first rotating rod 2011 away from the dual-axis motor 201 is fixedly connected to a pulley 2012, a belt 2013 is arranged on the pulley 2012, and a pulley is also arranged at the other end of the belt 2013, and a rotating rod 204 is fixedly installed on the pulley, the rotating rod 204 rotates and passes through the processing box 105, and a plurality of stirring rods 2041 that are symmetrical to each other are fixedly installed on the rotating rod 204. In this arrangement, it is ensured that when the first rotating rod 2011 rotates, the rotating rod 204 can be driven to rotate through the pulley 2012 and the belt 2013. When the rotating rod 204 rotates, it can drive the stirring rod 2041 to rotate. When the stirring rod 2041 rotates, it can mix the farmland non-point source soil and the extraction liquid entering the treatment box 105, so that the metal pollutants in the farmland non-point source soil can be treated.

[0040] like Figures 3 to 6 As shown, further, a connecting rod 2021 is fixedly mounted on the second rotating rod 202, a shovel body 2022 is fixedly connected to a side wall at the bottom of the connecting rod 2021, a guide plate 2023 is also fixedly mounted on the connecting rod 2021, and a material guide plate 2024 is also provided on the connecting rod 2021. In this arrangement, it is ensured that when the second rotating rod 202 rotates, the shovel body 2022 and the guide plate 2023 can be driven, and the material guide plate 2024 is also provided on the connecting rod 2021 to rotate.

[0041] like Figure 7 As shown, further, a first sliding mechanism is provided between the connecting rod 2021 and the guide plate 2024, and the first sliding mechanism includes a first slide groove 2025, the first slide groove 2025 is provided on the connecting rod 2021, a first slider 2026 is slidably installed in the inner cavity of the first slide groove 2025, one end of the first slider 2026 away from the first slide groove 2025 is fixedly connected to the guide plate 2024, a first return spring 2027 is fixedly connected above the first slider 2026, and one end of the first return spring 2027 away from the first slider 2026 is fixedly connected above the inner cavity of the first slide groove 2025. In this arrangement, it is ensured that the guide plate 2024 can move downward when subjected to gravity, so that it can move up and down, so that it can discharge materials more quickly.

[0042] Embodiment 2:

[0043] The difference between Example 1 and this Example is that: Figure 4 and Figures 8 to 9As shown, a farmland non-point source and heavy metal pollution prevention and control system, the inner cavity of the installation cylinder 302 is provided with a wedge block 3021, the wedge block 3021 is movable through the limit slot 1042, the two opposite side walls of the wedge block 3021 are provided with slide rails 3022, the two slide rails 3022 are respectively arranged on the two opposite side walls of the inner cavity of the installation cylinder 302, and the side wall of the wedge block 3021 away from the second rotating rod 202 is fixedly connected with a second return spring 3023, and the other end of the second return spring 3023 is fixedly connected to the inner wall of the installation cylinder 302. In this arrangement, it is ensured that when the guide plate 2024 continues to rotate, because it is sealed and fitted with the arc-shaped installation plate 104, the guide plate 2024 will be able to squeeze the wedge block 3021 to move horizontally with the assistance of the slide rail 3022.

[0044] like Figures 8 to 9 As shown, in a specific embodiment, two opposite side walls of the inner cavity of the installation cylinder 302 are provided with special-shaped slide grooves 303, the two special-shaped slide grooves 303 are symmetrical to each other, and the inner cavities of the two special-shaped slide grooves 303 are slidably installed with guide sliders 3031, the two guide sliders 3031 are symmetrical to each other, and the opposite side walls of the two guide sliders 3031 are fixedly connected with a fixing plate 3032. A telescopic rod 3033 is fixedly connected to the bottom of the fixing plate 3032, and the other end of the telescopic rod 3033 is fixedly connected to the wedge-shaped block 3021, and a striking rod 3034 is fixedly connected to the top of the fixing plate 3032. In this configuration, it is ensured that when the wedge block 3021 moves horizontally, it will be able to drive the telescopic rod 3033 to move horizontally. When the telescopic rod 3033 moves horizontally, it will be able to pull the fixed plate 3032 to move horizontally with the assistance of the special-shaped slide groove 303 and the guide slider 3031, thereby driving the fixed plate 3032 to move up and down. When the fixed plate 3032 moves up and down, it will be able to drive the impact rod 3034 to impact the inclined plate 301, so that the farmland non-point source soil that has not slipped off the inclined plate 301 can continue to slide off.

[0045] Embodiment 3:

[0046] The difference between Example 2 and this example is that: Figures 2 to 4 and Fig.10As shown, a farmland non-point source and heavy metal pollution prevention and control system is provided, a second sliding mechanism is provided above the inner cavity of the processing box 105, the second sliding mechanism includes two movable slide grooves 1062, the two movable slide grooves 1062 are respectively provided above the inner cavity of the processing box 105, the two movable slide grooves 1062 are symmetrical to each other, movable sliders 1063 are slidably installed in the inner cavities of the two movable slide grooves 1062, the two movable sliders 1063 are symmetrical to each other, the bottom of the two movable sliders 1063 are fixedly connected to the sealing plate 106, the bottom of the sealing plate 106 is fixedly connected to the driving plate 1061, and the driving plate 1061 and the stirring rod 2041 fit together. In this arrangement, it is ensured that when the rotating rod 204 rotates, it will be able to drive the stirring rod 2041 to rotate. Therefore, the rotation of the stirring rod 2041 can push the driving plate 1061 arranged above, so that the driving plate 1061 can drive the sealing plate 106 to move horizontally with the assistance of the moving slide groove 1062 and the moving slider 1063, thereby allowing the liquid inlet pipe 1013 to open.

[0047] like Fig.10 As shown, in a specific embodiment, one end of the two moving sliders 1063 is fixedly connected to the third return spring 1064, and one end of the two third return springs 1064 away from the moving slider 1063 is fixedly connected to the inner wall of the moving slide groove 1062. In this arrangement, it is ensured that when the stirring rod 2041 leaves the driving plate 1061, it can be reset with the assistance of the third return spring 1064.

[0048] like Figure 3 to Figure 4 As shown, further, a slot is provided at the processing box 105 and the cart base 101, and two mutually symmetrical electrically controlled sealing flip plates 2042 are provided in the slot cavity. In this configuration, the staff can control the electrically controlled sealing flip plates 2042 to open through the controller to process soil and metal pollutants.

[0049] The implementation principle of a farmland non-point source and heavy metal pollution prevention and control system of the present invention is as follows:

[0050] First, the staff moves the cart base 101 to the location where the farmland surface source needs to be detected. When the movement is completed, the staff controller controls the dual-axis motor 201 to operate, and at the same time, the staff adds extraction liquid into the liquid inlet pipe 1013;

[0051] When the dual-axis motor 201 is running, the dual-axis motor 201 will be able to drive the second rotating rod 202 to rotate. When the second rotating rod 202 rotates, it can drive the connecting rod 2021 to rotate. When the connecting rod 2021 rotates, it can drive the shovel body 2022 to remove the soil on the farmland surface source, so that the farmland surface source soil can enter the inner cavity of the shovel body 2022. Because the shovel body 2022 can rotate, when the shovel body 2022 is vertical to the ground and rotates 90 degrees clockwise, continuing to rotate can make the shovel body 2022 in an oblique upward state. Therefore, the soil in the shovel body 2022 will be able to fall to the guide plate 2023, and fall from the guide plate 2023 to the guide plate 2024, so that the farmland surface source soil can be collected through the guide plate 2024;

[0052] When collecting the non-point source soil of the farmland, it is still in a rotating state. After the whole body rotates 180 degrees, it continues to rotate, so that the guide plate 2024 is in a tilted downward state. However, because the guide plate 2024 and the arc-shaped mounting plate 104 are in a sealed fit state, until the guide plate 2024 rotates to the mounting slot 1041 opened on the arc-shaped mounting plate 104, the soil placed in the guide plate 2024 will be able to fall from the mounting slot 1041 along the tilting plate 301 to the inner cavity of the processing box 105;

[0053] When the second rotating rod 202 continues to rotate, the guide plate 2024 can continue to rotate. When the guide plate 2024 continues to rotate, because it is sealed and fitted with the arc-shaped mounting plate 104, the guide plate 2024 can squeeze the wedge block 3021 and move horizontally with the assistance of the slide rail 3022. When the wedge block 3021 moves horizontally, it can drive the telescopic rod 3033 to move horizontally. When the telescopic rod 3033 moves horizontally, it can pull the fixed plate 3032 to move horizontally with the assistance of the special-shaped slide groove 303 and the guide slider 3031, thereby driving the fixed plate 3032 to move up and down. When the fixed plate 3032 moves up and down, it can drive the impact rod 3034 to impact the inclined plate 301, so that the farmland non-point source soil that has not fallen off the inclined plate 301 can continue to slide.

[0054] At the same time, when the first rotating rod 2011 rotates, the rotating rod 204 can be driven to rotate through the pulley 2012 and the belt 2013. When the rotating rod 204 rotates, the stirring rod 2041 can be driven to rotate. Therefore, the rotation of the stirring rod 2041 can push the driving plate 1061 arranged above, so that the driving plate 1061 can drive the sealing plate 106 to move horizontally with the assistance of the moving slide groove 1062 and the moving slider 1063, so that the liquid inlet pipe 1013 is opened, and when the stirring rod 2041 leaves the driving plate 1061, it can be reset with the assistance of the third reset spring 1064. When the stirring rod 2041 rotates, the farmland non-point source soil and the extraction liquid entering the processing box 105 can be mixed, so that the metal pollutants in the farmland non-point source soil can be processed;

[0055] Subsequent staff use the controller to control the electric-controlled sealing flip plate 2042 to open, so as to process the soil and metal pollutants.

Claims

1. A farmland non-point source and heavy metal pollution prevention and control system, characterized in that: It comprises a mounting unit (100), a transmission unit (200) and a striking unit (300): The mounting unit (100) comprises a cart base (101), a rectangular notch (1014) is provided in the middle of the cart base (101), universal wheels (1011) are arranged around the bottom of the cart base (101), a protective shell (1012) is installed above the cart base (101), an inner protective shell (102) is arranged in the inner cavity of the protective shell (1012), and a placement notch is provided on one side wall of the inner protective shell (102). (1021), a processing box (105) is also installed in the inner cavity of the protective shell (1012), a feed slot (1051) is provided on one side wall of the processing box (105), a liquid inlet pipe (1013) runs through the processing box (105) and the protective shell (1012), and an arc-shaped mounting plate (104) is also fixedly installed in the inner cavity of the inner protective shell (102), and a mounting slot (1041) is provided on the arc-shaped mounting plate (104); The knocking unit (300) comprises an inclined plate (301), the inclined plate (301) being installed between a mounting notch (1041) and a feed notch (1051), a mounting tube (302) being provided at the bottom of the inclined plate (301), a limiting notch (1042) being provided between the mounting tube (302) and the arc-shaped mounting plate (104), a sliding notch (3024) being provided above the mounting tube (302), and a striking rod (3034) being movably penetrated in the sliding notch (3024); The transmission unit (200) comprises a driving assembly and a shovel body (2022); the driving assembly is used to drive the shovel body (2022) to rotate; and the driving assembly can also be used to drive the liquid inlet pipe (1013) to open.

2. A farmland non-point source and heavy metal pollution prevention and control system according to claim 1, characterized in that: The driving assembly comprises a double-axis motor (201), the double-axis motor (201) is arranged on a cart base (101), a first rotating rod (2011) and a second rotating rod (202) are respectively fixedly mounted on both ends of the double-axis motor (201), one end of the first rotating rod (2011) away from the double-axis motor (201) is fixedly connected to a pulley (2012), a belt (2013) is arranged on the pulley (2012), and a pulley is further arranged on the other end of the belt (2013), and a rotating rod (204) is fixedly mounted on the pulley, the rotating rod (204) rotates and passes through a processing box (105), and a plurality of stirring rods (2041) which are symmetrical to each other are fixedly mounted on the rotating rod (204).

3. A farmland non-point source and heavy metal pollution prevention and control system according to claim 2, characterized in that: A connecting rod (2021) is fixedly mounted on the second rotating rod (202); a shovel body (2022) is fixedly connected to a side wall at the bottom of the connecting rod (2021); a guide plate (2023) is also fixedly mounted on the connecting rod (2021); and a material guide plate (2024) is also provided on the connecting rod (2021).

4. A farmland non-point source and heavy metal pollution prevention and control system according to claim 3, characterized in that: A first sliding mechanism is arranged between the connecting rod (2021) and the material guide plate (2024), and the first sliding mechanism includes a first slide groove (2025), the first slide groove (2025) is opened on the connecting rod (2021), a first slider (2026) is slidably installed in the inner cavity of the first slide groove (2025), an end of the first slider (2026) away from the first slide groove (2025) is fixedly connected to the material guide plate (2024), a first return spring (2027) is fixedly connected above the first slider (2026), and an end of the first return spring (2027) away from the first slider (2026) is fixedly connected above the inner cavity of the first slide groove (2025).

5. A farmland non-point source and heavy metal pollution prevention and control system according to claim 1, characterized in that: The inner cavity of the installation cylinder (302) is provided with a wedge-shaped block (3021), and the wedge-shaped block (3021) is movable through the limiting groove (1042). The two opposite side walls of the wedge-shaped block (3021) are provided with sliding rails (3022), and the two sliding rails (3022) are respectively arranged on the two opposite side walls of the inner cavity of the installation cylinder (302). A second return spring (3023) is fixedly connected to a side wall of the wedge-shaped block (3021) away from the second rotating rod (202), and the other end of the second return spring (3023) is fixedly connected to the inner wall of the installation cylinder (302).

6. A farmland non-point source and heavy metal pollution prevention and control system according to claim 5, characterized in that: Special-shaped slide grooves (303) are provided on two opposite side walls of the inner cavity of the installation cylinder (302), and the two special-shaped slide grooves (303) are symmetrical to each other. Guide sliders (3031) are slidably installed in the inner cavities of the two special-shaped slide grooves (303), and the two guide sliders (3031) are symmetrical to each other. A fixing plate (3032) is fixedly connected to one opposite side wall of the two guide sliders (3031).

7. A farmland non-point source and heavy metal pollution prevention and control system according to claim 6, characterized in that: A telescopic rod (3033) is fixedly connected to the bottom of the fixed plate (3032), and the other end of the telescopic rod (3033) is fixedly connected to the wedge-shaped block (3021). An impact rod (3034) is fixedly connected to the top of the fixed plate (3032).

8. A farmland non-point source and heavy metal pollution prevention and control system according to claim 1, characterized in that: A second sliding mechanism is provided above the inner cavity of the processing box (105), and the second sliding mechanism includes two movable slide grooves (1062). The two movable slide grooves (1062) are respectively provided above the inner cavity of the processing box (105), and the two movable slide grooves (1062) are symmetrical to each other. A movable slider (1063) is slidably installed in the inner cavity of the two movable slide grooves (1062), and the two movable sliders (1063) are symmetrical to each other. The bottom of the two movable sliders (1063) is fixedly connected to a sealing plate (106), and the bottom of the sealing plate (106) is fixedly connected to a driving plate (1061), and the driving plate (1061) and the stirring rod (2041) fit together.

9. A farmland non-point source and heavy metal pollution prevention and control system according to claim 8, characterized in that: One end of the two movable sliders (1063) is fixedly connected to a third return spring (1064), and one end of the two third return springs (1064) away from the movable sliders (1063) is fixedly connected to the inner wall of the movable slide groove (1062).

10. A farmland non-point source and heavy metal pollution prevention and control system according to claim 1, characterized in that: The processing box (105) and the cart base (101) are also provided with slots, and the inner cavity of the slots is provided with two mutually symmetrical electrically controlled sealing flip plates (2042).

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