A method for pre-treatment of agricultural chemicals

Abstract

The present invention relates to the field of chemical detection technology, specifically a pre-treatment method for agricultural chemical detection, comprising first placing agglomerated fertilizer into a processing box; then reciprocatingly lifting a support frame and utilizing a coil spring and a pull line to drive a stirring rod to rotate and crush the fertilizer; then pressing the pressing rod with a thumb to drive a pair of pressing plates to flatten downward from a vertically folded state, and then pressing downward to utilize a pair of flattened pressing plates to flatten the fertilizer at the bottom of the processing box; at this time, opening a pair of discharge plates to discharge excess fertilizer, that is, taking out the remaining fertilizer according to the quartering method for detection. The present invention utilizes a pair of stirring rods in a stirring group to move up and down to rotate and crush agglomerated fertilizer, then utilizes a pair of pressing plates in a pressing group to switch from vertical to horizontal to flatten the fertilizer, and opens a pair of discharge plates to discharge excess fertilizer, thereby obtaining a group of fertilizers to be detected without contact, avoiding contamination during the sampling process, and ensuring the accuracy of detection.

Description

Technical Field

[0001] The present invention relates to the technical field of chemical detection, in particular to a pre-treatment method for agricultural chemical detection. Background Art

[0002] Fertilizers are agricultural chemicals that provide essential mineral elements for one or more plants, improve soil properties, and enhance soil fertility. They are a fundamental component of agricultural production, and therefore, fertilizer testing is crucial. This includes analyzing the composition of various fertilizers and refining their formulations. Currently, the quartering method is used for sampling. This method involves forming a cone of mixed fertilizer, then dividing it into four equal parts using a cross-shaped frame, and sampling only the two diagonal sections. This method determines the accuracy and reliability of the final results.

[0003] Because trace element content is very low, contamination should be avoided during sampling and handling. Fertilizer will clump over time, so it cannot be directly poured into the pot and sampled using the quartering method. It must be crushed and then reduced to the required amount. Metal sieves such as copper sieves and steel sieves should also not be used, as this will cause serious contamination of the sample. Summary of the Invention

[0004] The object of the present invention is to provide a method for pre-treatment of agricultural chemicals to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides a method for pre-treatment of agricultural chemicals, comprising the following steps:

[0006] S1. Lift the mixing unit to the top of the processing box and place the agglomerated fertilizer into the processing box.

[0007] S2. Then put the stirring group back and snap the bracket into the processing box until it bottoms out;

[0008] S3, the bracket is lifted back and forth and the stirring rod is driven to rotate by the coil spring and the pull wire to crush the fertilizer;

[0009] S4, then the thumb presses the pressure rod to drive the pair of pressure plates to flatten downward from the vertically folded state, thereby forming a state of sealing the process cartridge;

[0010] S5, pressing down again and using a pair of flattened pressing plates to flatten the fertilizer at the bottom of the processing box;

[0011] S6. At this time, a pair of unloading plates are opened to unload the excess fertilizer, that is, the remaining fertilizer is taken out for testing according to the quartering method.

[0012] As a further improvement of the present technical solution, it also includes a processing box and a leakage box arranged directly below it, wherein a triangular discharge port is symmetrically opened on the bottom surface of the processing box, a discharge plate is rotatably connected to the discharge port, and the bottom edge of the leakage box is rotatably connected to a support plate that is clamped with the processing box.

[0013] As a further improvement of the present technical solution, a stirring group and a pressing group are provided in the processing box, and the stirring group includes a pair of stirring rods, a bracket sleeved with the pair of stirring rods, a pull wire for winding and pulling the stirring rods, and a coil spring sleeved with the stirring rods, the inner end of the coil spring is welded to the stirring rods, and the outer end of the coil spring is welded to the inner wall of the bracket.

[0014] As a further improvement of the present technical solution, both ends of the stirring rod are provided with pulleys wound with a pulling wire, and the upper end of the pulling wire is connected to the inner wall of the top end of the processing box through a pin.

[0015] As a further improvement of the present technical solution, the outer side of the stirring rod is annular and has a plurality of stirring bars welded thereto at equal intervals, and a handle is welded to the center of the top surface of the bracket.

[0016] As a further improvement of the present technical solution, support rods that are clamped with the leakage box are welded at the four corners of the bottom surface of the processing box. The support plate is L-shaped and a rotating plate is hinged at its outer bend. The bottom end of the rotating plate is rotatably connected to the top edge of the leakage box by a pin, and a baffle is provided on the inner side of the bottom of the rotating plate.

[0017] As a further improvement of the present technical solution, the pressing group includes a pair of pressing plates located between a pair of stirring rods, a pressing rod for lifting and pressing the pair of pressing plates, and a pair of pull rods for guiding the pressing plates to switch from a vertical state to a horizontal state. The pressing rods are plugged into the handles, the top ends of the pull rods are welded to the brackets, and the bottom ends of the pull rods are slidably connected to the pressing plates.

[0018] As a further improvement of the present technical solution, a guide bar is symmetrically welded on the top surface of the pressure plate. The guide bar has an arc structure and a guide groove is provided on its concave surface. The inner width of the guide groove is larger than its opening width. The pull bar is made of steel wire and its bottom end is teardrop-shaped. The bottom end of the pull bar is clamped with the guide groove and can slide.

[0019] As a further improvement of this technical solution, a hinge seat with a double-tube structure is welded to the bottom end of the pressure rod. The hinge seat is clamped with the middle part of a pair of pressure plates and is rotatably connected by pins. Blocks are protruding on both sides of the hinge seat.

[0020] As a further improvement of the present technical solution, the handle is a round tube structure with a square hole block welded inside the top, the upper half of the pressure rod is a square rod and is plugged into the square hole block, and a spring is provided on the top outer sleeve of the pressure rod.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] In this agricultural chemical testing pretreatment method, a processing box with fertilizer divided into four equal parts is provided. A pair of stirring rods in a stirring group are used to move up and down to rotate and break up the lumped fertilizer. A pair of pressing plates in a pressing group are then switched from vertical to horizontal to flatten the fertilizer. Excess fertilizer is removed by opening a pair of discharge plates. Thus, a group of fertilizers to be tested is obtained in a contactless manner, contamination is avoided during the sampling process, and the accuracy of the test is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall assembly structure of Example 1;

[0024] Figure 2 This is a schematic structural diagram of the working state of the material pressing group in Example 1;

[0025] Figure 3 This is a schematic diagram of the working state structure of the stirring group of Example 1;

[0026] Figure 4 This is a plan view of the structure of the pressing assembly in the folded state of Example 1;

[0027] Figure 5 This is a structural plan view of the material pressing group in the expanded state of Example 1;

[0028] Figure 6 is a full cross-sectional view of the process cartridge of Example 1;

[0029] Figure 7 This is a disassembled diagram of the support plate of Example 1;

[0030] Figure 8 This is a partial exploded view of the pressing group of Example 1;

[0031] Figure 9 This is a disassembled diagram of the stirring group of Example 1;

[0032] Figure 10 This is a partial disassembled view of the pressure plate in Example 1.

[0033] The meaning of each number in the figure is:

[0034] 100, processing box; 101, discharge port; 102, support rod; 110, leakage box; 120, discharge plate; 130, support plate; 131, rotating plate; 132, stop bar;

[0035] 200, stirring group; 210, stirring rod; 211, stirring bar; 212, wire wheel; 220, bracket; 221, handle; 222, square hole block; 230, pull wire; 240, coil spring;

[0036] 300, pressing group; 310, pressing plate; 311, guide bar; 312, guide groove; 320, pressing rod; 321, hinge seat; 322, stopper; 330, pull rod; 340, spring. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0038] In the description of the present invention, it should be understood that the terms "central axis", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, in the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0039] See also Figures 1-10 As shown, the present invention provides a method for pre-treatment of agricultural chemicals, comprising the following steps:

[0040] S1. First, lift the stirring group 200 to the top of the processing box 100 and place the agglomerated fertilizer into the processing box 100;

[0041] S2, then put the stirring assembly 200 back and insert the bracket 220 into the processing box 100 until it reaches the bottom;

[0042] S3, the bracket 220 is lifted back and forth and the stirring rod 210 is driven to rotate by the coil spring 240 and the pull wire 230 to crush the fertilizer;

[0043] S4, then the thumb presses the pressure rod 320 to drive the pair of pressure plates 310 to flatten downward from the vertically folded state, thereby forming a state of sealing the process cartridge 100;

[0044] S5, pressing down again and using a pair of flattened pressing plates 310 to flatten the fertilizer on the bottom of the processing box 100, thereby flattening the fertilizer so that it is evenly distributed on the bottom of the processing box 100;

[0045] S6. At this time, a pair of unloading plates 120 are opened to unload the excess fertilizer, that is, the remaining fertilizer is taken out for testing according to the quartering method.

[0046] Quartering sampling involves stacking each sample into a uniform cone shape, pressing it into a frustum, then dividing it into four equal parts using a cross-shaped rack, and sampling only the two diagonal sections. This method provides raw data for survey and sampling research, determining the accuracy and reliability of the final conclusions.

[0047] The apparatus further comprises a processing box 100 and a leakage box 110 disposed directly below the processing box 100 for collecting discharged fertilizer. A triangular discharge opening 101 is symmetrically provided on the bottom surface of the processing box 100. A discharge plate 120 is rotatably connected to the discharge opening 101. A support plate 130 is rotatably connected to the bottom edge of the leakage box 110 and is engaged with the processing box 100 for supporting the discharge plate 120 and sealing the discharge opening 101.

[0048] This method utilizes the discharge port 101 at the bottom of the processing box 100 to discharge excess fertilizer, and then collects the remaining fertilizer as a sample for testing.

[0049] Specifically, the processing box 100 is provided with a stirring group 200 and a pressing group 300. The stirring group 200 is first used to break up the clumped fertilizer, and then the pressing group 300 is used to press the fertilizer pile into a frustum. The stirring group 200 includes a pair of stirring rods 210, a bracket 220 sleeved with the pair of stirring rods 210, a pull wire 230 for winding and pulling the stirring rods 210, and a coil spring 240 sleeved with the stirring rods 210. The inner end of the coil spring 240 is welded to the stirring rods 210, and the outer end of the coil spring 240 is welded to the inner wall of the bracket 220.

[0050] The stirring group 200 is manually driven to raise and lower the bracket 220 and a pair of stirring rods 210 in the processing box 100, and the pulling wire 230 is pulled to drive the stirring rod 210 to rotate and crush the fertilizer. When the bracket 220 is moved upward, the winding spring 240 is wound back to drive the stirring rod 210 to rotate and rewind the pulling wire 230, so that when the bracket 220 is pressed down, the pulling wire 230 is continued to be pulled to drive the stirring rod 210 to rotate.

[0051] Furthermore, both ends of the stirring rod 210 are provided with a wire wheel 212 wound with the pull wire 230, and the upper end of the pull wire 230 is connected to the top inner wall of the processing box 100 through a pin;

[0052] The outer side of the stirring rod 210 is annular and welded with a number of stirring bars 211 at equal intervals, which are used to break up the lumped fertilizer; a handle 221 is welded at the center of the top surface of the bracket 220 so that the bracket 220 can be raised or lowered by grasping the handle 221.

[0053] Furthermore, the four corners of the bottom surface of the processing box 100 are welded with support rods 102 that are clamped with the leakage box 110, so that the leakage box 110 can take out and recycle excess fertilizer; the support plate 130 is L-shaped and a rotating plate 131 is hinged at its outer bend. The bottom end of the rotating plate 131 is rotatably connected to the top edge of the leakage box 110 through a pin, and a blocking bar 132 is provided on the inner side of the bottom of the rotating plate 131;

[0054] The rotating plate 131 is rotated outward to separate the supporting plate 130 from the processing box 100, and the unloading plate 120 loses its support and turns down; the blocking bar 132 is clamped on the inner side of the leakage box 110 to form a support to prevent the rotating plate 131 from rotating too much.

[0055] In addition, the pressing group 300 includes a pair of pressing plates 310 located between the pair of stirring rods 210, a pressing rod 320 for lifting and pressing the pair of pressing plates 310, and a pair of pull bars 330 for guiding the pressing plates 310 to switch from a vertical state to a horizontal state. That is, when the pair of pressing plates 310 are not in use, they are hidden between the pair of stirring rods 210 so as not to affect the stirring rods 210 from breaking up the clumped fertilizer. When the fertilizer needs to be flattened for sampling, the pressing rod 320 is pressed down to drive the pressing plates 310 to switch from a vertical state to a horizontal state, thereby flattening the fertilizer.

[0056] The pressure rod 320 is plugged into the handle 221 , the top end of the pull rod 330 is welded to the bracket 220 , and the bottom end of the pull rod 330 is slidably connected to the pressure plate 310 .

[0057] Specifically, a guide bar 311 is symmetrically welded to the top surface of the pressure plate 310. The guide bar 311 is an arc structure and a guide groove 312 is provided on its concave surface. The inner width of the guide groove 312 is larger than its opening width, thereby forming a limiting structure. The pull bar 330 is made of steel wire and its bottom end is in a teardrop shape. The bottom end of the pull bar 330 is engaged with the guide groove 312 and can slide, which is used to guide the pressure plate 310 to switch smoothly between the vertical state and the horizontal state.

[0058] Furthermore, a hinge seat 321 with a double-cylinder structure is welded to the bottom end of the pressure rod 320. The hinge seat 321 is clamped with the middle part of a pair of pressure plates 310 and is rotatably connected by pins, so that the pair of pressure plates 310 can rotate without gaps, ensuring that the fertilizer is flattened; blocks 322 are protruding on both sides of the hinge seat 321, and the blocks 322 are used to support the pressure plates 310 to maintain a level state and prevent them from rotating when flattening the fertilizer.

[0059] It is worth noting that the handle 221 is a circular tube structure and a square hole block 222 is welded inside the top of the handle. The upper half of the pressure rod 320 is a square rod and is plugged into the square hole block 222, so that the pressure rod 320 can maintain the lifting and lowering without rotation. The top outer sleeve of the pressure rod 320 is provided with a spring 340. A round block is used at the top of the pressure rod 320, and it and the square hole block 222 limit the spring 340, so that in the natural state, a pair of pressure plates 310 are in a vertically retracted state, providing sufficient time for the stirring rod 210 to crush the agglomerated fertilizer.

[0060] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for pre-treatment of agricultural chemicals, characterized by: The following steps are involved: S1, first lift the stirring group (200) to the top of the processing box (100), and put the agglomerated fertilizer into the processing box (100); S2, then put the stirring assembly (200) back and snap the bracket (220) into the processing box (100) until it reaches the bottom; S3, the bracket (220) is lifted back and forth and the stirring rod (210) is driven to rotate by the coil spring (240) and the pull wire (230) to crush the fertilizer; S4, then the thumb presses the pressure rod (320) to drive the pair of pressure plates (310) to flatten downward from the vertically folded state, thereby forming a state of sealing the processing box (100); S5, pressing down again and using a pair of flattened pressing plates (310) to flatten the fertilizer on the bottom of the processing box (100); S6. At this time, a pair of discharge plates (120) are opened to discharge the excess fertilizer, that is, the remaining fertilizer is taken out for testing according to the quartering method; The processing box (100) is provided with a stirring group (200) and a material pressing group (300), the stirring group (200) includes a pair of stirring rods (210), a bracket (220) sleeved with the pair of stirring rods (210), a pull wire (230) for winding and pulling the stirring rods (210), and a coil spring (240) sleeved with the stirring rods (210), the inner end of the coil spring (240) is welded to the stirring rods (210), and the outer end of the coil spring (240) is welded to the inner wall of the bracket (220); Both ends of the stirring rod (210) are sleeved with wire wheels (212) wound with a pull wire (230), and the upper end of the pull wire (230) is connected to the inner wall of the top end of the processing box (100) via a pin; The pressing group (300) includes a pair of pressing plates (310) located between a pair of stirring rods (210), a pressing rod (320) for lifting and pressing the pair of pressing plates (310), and a pair of pull rods (330) for guiding the pressing plates (310) to switch from a vertical state to a horizontal state, wherein the pressing rod (320) is plugged into the handle (221), the top end of the pull rod (330) is welded to the bracket (220), and the bottom end of the pull rod (330) is slidably connected to the pressing plate (310); A guide bar (311) is symmetrically welded to the top surface of the pressure plate (310), the guide bar (311) is in an arc structure and a guide groove (312) is provided on its concave surface, the inner width of the guide groove (312) is larger than its opening width, the pull bar (330) is made of steel wire and its bottom end is in a teardrop shape, and the bottom end of the pull bar (330) is snap-fitted to the guide groove (312) and is slidable; A hinge seat (321) with a double-tube structure is welded to the bottom end of the pressure rod (320). The hinge seat (321) is clamped with the middle part of a pair of pressure plates (310) and is rotatably connected via a pin. Stoppers (322) are protruding from both sides of the hinge seat (321).

2. The method for pre-treatment of agricultural chemicals according to claim 1, wherein: The invention also includes a processing box (100) and a leakage box (110) arranged directly below the processing box (100), wherein a triangular discharge port (101) is symmetrically opened on the bottom surface of the processing box (100), a discharge plate (120) is rotatably connected to the discharge port (101), and a support plate (130) that is engaged with the processing box (100) is rotatably connected to the bottom edge of the leakage box (110).

3. The method for pre-treatment of agricultural chemicals according to claim 2, wherein: The outer side of the stirring rod (210) is annular and has a plurality of stirring bars (211) welded thereto at equal intervals. A handle (221) is welded to the center of the top surface of the bracket (220).

4. The method for pre-treatment of agricultural chemicals according to claim 3, wherein: The four corners of the bottom surface of the processing box (100) are welded with support rods (102) that are clamped to the leakage box (110). The support plate (130) is L-shaped and a rotating plate (131) is hinged at its outer bending part. The bottom end of the rotating plate (131) is rotatably connected to the top edge of the leakage box (110) through a pin. A blocking bar (132) is provided on the inner side of the bottom of the rotating plate (131).

5. The method for pre-treatment of agricultural chemicals according to claim 4, characterized in that: The handle (221) is in a circular tube structure and a square hole block (222) is welded inside the top thereof. The upper half of the pressure rod (320) is in the form of a square rod and is plugged into the square hole block (222). A spring (340) is provided on the top outer cover of the pressure rod (320).

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