Agricultural product pesticide residue detection device

Abstract

The invention discloses an agricultural product pesticide residue detection device, and belongs to the technical field of agricultural product detection equipment. The crushing mechanism comprises a box body, a crushing cavity and a circular cavity are formed in the box body, the crushing cavity is of two symmetrical fan-shaped structures, a rotating motor is mounted on the mounting frame, the output end of the rotating motor is coaxially and fixedly connected with a rotating column, and the end, away from the rotating motor, of the rotating column is fixedly connected with the top of the box body. According to the agricultural product crushing device, the crushing mechanism is arranged, and under the centrifugal effect and the elastic force effect of a torsional spring, agricultural product fragments are always clamped on a rotating track of a crushing rod by a rotating plate, so that the crushing accuracy and comprehensiveness of the agricultural products are guaranteed; and the problem that agricultural products at corners cannot be crushed is effectively avoided, and the crushing comprehensiveness and crushing efficiency of the agricultural products are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural product detection equipment, and in particular relates to an agricultural product pesticide residue detection device. Background Art

[0002] During the growth process of agricultural products, pesticides are usually sprayed and pest control is carried out to improve the growth effect of agricultural products. After the agricultural products are harvested, it is necessary to test the pesticide residues in the agricultural products to avoid excessive pesticide residues on the agricultural products and ensure the safety of the agricultural products entering the market. When testing agricultural products for pesticide residues, it is usually necessary to use a crushing device to crush the agricultural products, so that the crushed agricultural products can be mixed with the detection agent to improve the detection effect.

[0003] In the prior art, a driving mechanism is used to drive the crushing rod to rotate, thereby crushing the agricultural products in the device. In this manner, the agricultural products located at the corners of the device cannot be crushed by the crushing rod, which reduces the comprehensiveness of the crushing of the agricultural products and is not conducive to improving the crushing efficiency of the agricultural products. In addition, the crushing rod cannot adaptively crush agricultural products of different volumes, which easily leads to incomplete crushing of the agricultural products. Summary of the invention

[0004] The purpose of the present invention is to propose a device for detecting pesticide residues in agricultural products to solve the problem that in the traditional technology, a driving mechanism is used to drive a crushing rod to rotate to form a crushing effect on the agricultural products in the device, and the agricultural products located at the corners of the device cannot be crushed by the crushing rod, thereby reducing the comprehensiveness of the crushing of the agricultural products.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A device for detecting pesticide residues in agricultural products, comprising:

[0007] Mounting frame;

[0008] The pulverizing mechanism comprises a box body, wherein a pulverizing chamber and a circular chamber are opened in the box body, and the pulverizing chamber presents two symmetrical fan-shaped structures, and a rotating motor is installed on the mounting frame, and an output end of the rotating motor is coaxially fixedly connected with a rotating column, and one end of the rotating column away from the rotating motor is fixedly connected to the box body top, and a fixed block is fixedly connected to the top and inner bottom of the pulverizing chamber, and the fixed block is coaxially arranged with the rotating column, and a rotating plate is rotatably installed on both sides of the fixed block, and one end of the two rotating plates on the same side away from the fixed block coaxially rotates and abuts against the inner side wall on the same side of the pulverizing chamber, and the center of mass of the rotating plate is close to the inner side wall of the pulverizing chamber, and a pulverizing assembly is connected to the mounting frame, and the middle of the pulverizing chamber is connected with the circular chamber, and the output end of the pulverizing assembly seals and passes through the lower part of the box body and the fixed block, and extends into the circular chamber, and is fixedly connected with a plurality of crushing rods, and the crushing rods are located between the two fixed blocks, and the top of the side wall of the pulverizing chamber is connected with a feed pipe, and the bottom is connected with a discharge port;

[0009] The detection cylinder is fixedly connected to the mounting frame, and the top is connected with an annular tube, the annular tube is connected with the bottom of the rotating discharge port, the top of the detection cylinder is connected with a dosing tube, and the bottom is connected with a discharge tube.

[0010] Preferably, both sides of the adjacent ends of the two fixed blocks are fixedly connected with a rotating seat, a rotating groove is provided on the rotating seat, the four rotating plates are rotatably connected in the four rotating grooves one by one, a torsion spring is fixedly connected between the rotating plate and the inside of the rotating groove, the torsion spring is in a stretched state in its initial state, and makes the end of the rotating plate away from the fixed block correspondingly abut against the top and the inner bottom of the crushing chamber.

[0011] Preferably, a plurality of extrusion teeth are fixedly connected to one side of the rotating plate close to the center of the circular cavity, and the plurality of extrusion teeth are distributed on the rotating plate in a rectangular array.

[0012] Preferably, a plurality of sliding slots are fixedly connected to one side of the rotating plate away from the center of the circular cavity, a sliding block is slidably connected inside the sliding slot, and a return spring is fixedly connected between the sliding block and the bottom of the sliding slot.

[0013] Preferably, the crushing assembly includes a driving motor, which is installed on a mounting frame through a bracket that seals and passes through an annular tube. The output end of the driving motor is coaxially fixedly connected with a driving shaft. The end of the driving shaft away from the driving motor seals and passes through the lower part of the box body and the fixed block, and extends into the circular cavity, and is fixedly connected with a fixing ring. A plurality of breaking rods are fixedly connected to the outer peripheral side of the fixing ring.

[0014] Preferably, the breaking rod is fixedly connected to a curved block at one end away from the fixed ring, and the curved block is coaxially sealed and rotatably matched with the inner circumference of the circular cavity. Curved grooves are provided on the top and bottom of the curved block, and a curved sliding block is slidably connected in the curved groove. A supporting spring is fixedly connected between the curved sliding block and the bottom of the curved groove, and the rotating plate slides and contacts with each other after the curved sliding block is rotated away from the supporting spring. The end of the curved block away from the inner side wall of the circular cavity is wedge-shaped, and the wedge-shaped inclined surface is opposite to the rotating front and points to the middle of the circular cavity.

[0015] Preferably, a dosing valve is installed on the dosing pipe, and a discharge valve is installed on the discharge pipe.

[0016] Preferably, the driving motor is a dual-shaft motor, and the other output end of the driving motor is sealed and passes through the top of the detection cylinder and is fixedly connected with a plurality of stirring rods.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In the present invention, a crushing mechanism is provided, and the rotating motor drives the box to rotate through the rotating column. Under the centrifugal effect, since the center of mass of the rotating plate is close to the inner wall of the crushing chamber, the two rotating plates rotate and close to clamp the agricultural products under the centrifugal effect, which is convenient for adapting to agricultural products of different volumes. The driving motor drives the multiple crushing rods to rotate through the driving shaft and the fixed ring, forming a striking and crushing effect on the center of the clamped agricultural products. After the agricultural products are struck and crushed into agricultural product fragments, they are clamped again by the closed rotating plates, thereby forming a continuous crushing effect on the agricultural products; under the centrifugal effect and the elastic force of the torsion spring, the agricultural product fragments are always clamped by the rotating plate on the rotating trajectory of the crushing rod, thereby ensuring the accuracy and comprehensiveness of the crushing of the agricultural products. Compared with the traditional method of using a rotating crushing rod to crush agricultural products, the problem that the agricultural products at the corners cannot be crushed is effectively avoided, and the comprehensiveness and efficiency of the crushing of the agricultural products are improved.

[0019] 2. In the present invention, a reset spring and a sliding block are provided. When the breaking rod hits the clamped agricultural products, an outward pushing effect is formed on the nearby rotating plate, so that the reset spring and the sliding block on the rotating plate fluctuate. Under the elastic recovery effect of the reset spring, an squeezing effect is formed on the rotating plate directed toward the clamped agricultural product blocks, forming a temporarily enhanced squeezing effect on the agricultural products, thereby increasing the clamping rate of the agricultural product fragments and cooperating with the breaking rod to improve the crushing effect on the agricultural products.

[0020] 3. In the present invention, a curved block is provided. When the curved block rotates with the stirring rod, the inclined surface of the wedge-shaped end pushes the agricultural product fragments near it to move toward the middle of the circular cavity, thereby further improving the crushing effect of the agricultural products; and when the rotating plate rotates and closes, under the elastic force of the supporting spring, the curved slider extends out of the curved groove, effectively avoiding the collision between the rotating plate and the crushing rod when rotating, thereby avoiding damage to both. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a schematic diagram of the working state structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the vertical cross-section state of the box body and its internal structure of the present invention;

[0024] Figure 4 for Figure 3 The enlarged schematic diagram of part A in the middle;

[0025] Figure 5 It is a schematic structural diagram of a partial cross-sectional state of a curved block of the present invention.

[0026] In the figure: 1 mounting frame, 2 box body, 3 crushing chamber, 4 rotating motor, 5 rotating column, 6 fixed block, 7 rotating seat, 8 rotating plate, 9 torsion spring, 10 extrusion tooth, 11 sliding groove body, 12 sliding block, 13 return spring, 14 driving motor, 15 driving shaft, 16 fixing ring, 17 crushing rod, 18 curved block, 19 curved groove, 20 curved slider, 21 supporting spring, 22 circular cavity, 23 feeding pipe, 24 feeding valve, 25 discharging port, 26 annular pipe, 27 detection cylinder, 28 stirring rod, 29 dosing pipe, 30 dosing valve, 31 discharge pipe, 32 discharge valve. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] Reference Figure 1-Figure 5 , a device for detecting pesticide residues in agricultural products, comprising:

[0029] Mounting frame 1.

[0030] The crushing mechanism includes a box body 2, a crushing chamber 3 and a circular chamber 22 are opened in the box body 2, the crushing chamber 3 is a symmetrical fan-shaped structure, a rotating motor 4 is installed on the mounting frame 1, and a rotating column 5 is coaxially fixedly connected to the output end of the rotating motor 4, and the rotating column 5 is fixedly connected to the top of the box body 2 at one end away from the rotating motor 4. The top and the bottom of the crushing chamber 3 are fixedly connected with a fixed block 6, and the fixed block 6 is coaxially arranged with the rotating column 5. Rotating plates 8 are rotatably installed on both sides of the fixed block 6. The two rotating plates on the same side The end of the movable plate 8 away from the fixed block 6 coaxially rotates and seals against the inner wall on the same side of the crushing chamber 3, the center of mass of the rotating plate 8 is close to the inner wall of the crushing chamber 3, and a crushing assembly is connected to the mounting frame 1. The middle part of the crushing chamber 3 is connected to the circular cavity 22, and the output end of the crushing assembly seals through the lower part of the box body 2 and the fixed block 6, and extends into the circular cavity 22, and is fixedly connected with a plurality of crushing rods 17, and the crushing rods 17 are located between the two fixed blocks 6. The top of the side wall of the crushing chamber 3 is connected to a feed pipe 23, and the bottom is connected to a discharge port 25.

[0031] The detection cylinder 27 is fixedly connected to the mounting frame 1 and is connected to an annular tube 26 at the top. The annular tube 26 is connected to the bottom of the rotating discharge port 25. The top of the detection cylinder 27 is connected to a dosing tube 29 and the bottom is connected to a discharge tube 31.

[0032] A rotating seat 7 is fixedly connected to both sides of the adjacent ends of the two fixed blocks 6. A rotating groove is opened on the rotating seat 7. Four rotating plates 8 are rotatably connected in the four rotating grooves one by one. A torsion spring 9 is fixedly connected between the rotating plate 8 and the inside of the rotating groove. The torsion spring 9 is in a stretched state in the initial state, and makes the end of the rotating plate 8 away from the fixed block 6 correspondingly abut against the top and the bottom of the crushing chamber 3.

[0033] A plurality of extrusion teeth 10 are fixedly connected to one side of the rotating plate 8 close to the center of the circular cavity 22 , and the plurality of extrusion teeth 10 are distributed on the rotating plate 8 in a rectangular array.

[0034] A plurality of sliding slots 11 are fixedly connected to the rotating plate 8 at one side away from the center of the circular cavity 22 , a sliding block 12 is slidably connected in the sliding slot 11 , and a return spring 13 is fixedly connected between the sliding block 12 and the bottom of the sliding slot 11 .

[0035] The crushing assembly includes a drive motor 14, which is installed on the mounting frame 1 through a bracket that seals and penetrates the annular tube 26. The output end of the drive motor 14 is coaxially fixedly connected with a drive shaft 15. The end of the drive shaft 15 away from the drive motor 14 seals and penetrates the lower part of the box 2 and the fixed block 6, and extends into the circular cavity 22, and is fixedly connected with a fixed ring 16. A plurality of crushing rods 17 are fixedly connected to the outer peripheral side of the fixed ring 16.

[0036] A curved block 18 is fixedly connected to the end of the breaking rod 17 away from the fixed ring 16. The curved block 18 rotates in a coaxial sealing manner with the inner circumference of the circular cavity 22. Curved grooves 19 are provided on the top and bottom of the curved block 18. A curved slider 20 is slidably connected in the curved groove 19. A supporting spring 21 is fixedly connected between the curved slider 20 and the bottom of the curved groove 19. After the curved slider 20 rotates away from the supporting spring 21, the rotating plate 8 slides and contacts with it. The end of the curved block 18 away from the inner wall of the circular cavity 22 is wedge-shaped, and the wedge-shaped inclined surface is opposite to the rotating front and points to the middle of the circular cavity 22.

[0037] A dosing valve 30 is installed on the dosing pipe 29 , and a discharge valve 32 is installed on the discharge pipe 31 .

[0038] The driving motor 14 is a dual-shaft motor. The other output end of the driving motor 14 is sealed and penetrates the top of the detection cylinder 27 and is fixedly connected with a plurality of stirring rods 28 .

[0039] In the present invention, the feed valve 24 is opened, the agricultural product to be tested is passed into the crushing chamber 3 through the feed pipe 23, and the feed valve 24 is closed. At this time, the agricultural product is located between the two rotating plates 8 on the same side;

[0040] The rotating motor 4 is started and works, and its output end drives the rotating column 5 to rotate, and the rotating column 5 rotates to drive the box body 2 to rotate. Under the centrifugal effect, since the center of mass of the rotating plate 8 is close to the inner wall of the crushing chamber 3, the rotating plate 8 overcomes the elastic force of the torsion spring 9 and rotates toward the circular cavity 22. The two rotating plates 8 rotate and close under the centrifugal effect, and the agricultural products are clamped by the squeezing teeth 10, which is convenient for adapting to agricultural products of different volumes;

[0041] The drive motor 14 is started and works. The output end of the drive motor 14 drives the drive shaft 15 to rotate. The drive shaft 15 rotates and drives the plurality of crushing rods 17 to rotate through the fixed ring 16. The crushing rods 17 rotate to form a striking and crushing effect on the center of the clamped agricultural products. After the agricultural products are struck and crushed into agricultural product fragments, the rotating plate 8 rotates under the centrifugal effect of the box body 2 to continue to form a clamping effect on the agricultural product fragments, so that the agricultural product fragments are crushed again under the subsequent striking of the crushing rods 17, forming a continuous crushing effect on the agricultural products clamped in the circular cavity 22;

[0042] Under the centrifugal effect and the elastic force of the torsion spring 9, the agricultural product fragments are always clamped by the rotating plate 8 on the rotating track of the crushing rod 17, thereby ensuring the accuracy and comprehensiveness of the crushing of the agricultural products. Compared with the traditional method of crushing agricultural products using the rotating crushing rod 17, the problem of the corners of the agricultural products being unable to be crushed is effectively avoided, and the comprehensiveness and efficiency of the crushing of the agricultural products are improved;

[0043] When the crushing rod 17 hits the clamped agricultural products, the nearby rotating plate 8 is pushed outward, so that the return spring 13 and the sliding block 12 on the rotating plate 8 fluctuate. As the box body 2 continues to rotate, the elastic force of the return spring 13 restores the rotating plate 8, forming a squeezing effect directed toward the clamped agricultural products, thereby forming a temporarily enhanced squeezing effect on the agricultural products, increasing the clamping rate of the agricultural product fragments, and cooperating with the crushing rod 17 to improve the crushing effect of the agricultural products;

[0044] When the rotating plate 8 rotates and closes, under the elastic force of the supporting spring 21, the curved slider 20 extends out of the curved slot 19, effectively preventing the rotating plate 8 from colliding with the breaking rod 17 during rotation, thereby preventing damage to both.

[0045] The curved block 18 rotates with the crushing rod 17, and the inclined surface of its wedge-shaped end pushes the agricultural product pieces near it to move toward the middle of the circular cavity 22, further improving the crushing effect of the agricultural products;

[0046] After the agricultural products are crushed, the motor 4 is stopped. After the box 2 stops stably, the rotating plate 8 located below rotates downward and resets under the elastic force of the torsion spring 9, exposing the discharge port 25. The agricultural product fragments fall into the annular tube 26 through the discharge port 25, and then fall into the detection cylinder 27 through the annular tube 26. The dosing valve 30 is opened, and the detection agent for detecting residual pesticides is introduced into the detection cylinder 27 through the dosing tube 29. When the driving motor 14 continues to work, its output end drives the stirring rod 28 in the detection cylinder 27 to rotate, so as to stir and mix the agricultural product fragments and the detection agent.

[0047] After the agricultural product pieces and the detection reagent are mixed and reacted, the discharge valve 32 is opened and the mixture is discharged through the discharge pipe 31, and the agricultural product pesticide residue detection operation can be performed.

[0048] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for detecting pesticide residues in agricultural products, characterized in that: include: Mounting frame (1); A pulverizing mechanism, the pulverizing mechanism comprising a box (2), the box (2) being provided with a pulverizing chamber (3) and a circular chamber (22), the pulverizing chamber (3) being in the form of two symmetrical fan-shaped structures, the mounting frame (1) being provided with a rotating motor (4), the output end of the rotating motor (4) being coaxially fixedly connected to a rotating column (5), the rotating column (5) being fixedly connected to the top of the box (2) at one end away from the rotating motor (4), the top and bottom of the pulverizing chamber (3) being fixedly connected to a fixed block (6), the fixed block (6) being coaxially arranged with the rotating column (5), the two sides of the fixed block (6) being rotatably mounted with rotating plates (8), and the rotating plates (8) located on the same side The two rotating plates (8) are coaxially sealed and rotated at one end away from the fixed block (6) to abut against the inner wall of the same side of the crushing chamber (3), the center of mass of the rotating plates (8) is close to the inner wall of the crushing chamber (3), the mounting frame (1) is connected with a crushing assembly, the middle part of the crushing chamber (3) is connected with the circular chamber (22), the output end of the crushing assembly seals and penetrates the lower part of the box body (2) and the fixed block (6), and extends into the circular chamber (22), and is fixedly connected with a plurality of crushing rods (17), the crushing rods (17) are located between the two fixed blocks (6), the top of the side wall of the crushing chamber (3) is connected with a feed pipe (23), and the bottom is connected with a discharge port (25); A detection cylinder (27) is fixedly connected to the mounting frame (1) and is connected to an annular tube (26) at the top. The annular tube (26) is connected to the bottom of the rotating discharge port (25). The top of the detection cylinder (27) is connected to a dosing tube (29) and the bottom is connected to a discharge tube (31).

2. The agricultural product pesticide residue detection device according to claim 1, characterized in that: in: A rotating seat (7) is fixedly connected to both sides of adjacent ends of the two fixed blocks (6), a rotating groove is provided on the rotating seat (7), and the four rotating plates (8) are rotatably connected in the four rotating grooves one by one. A torsion spring (9) is fixedly connected between the rotating plates (8) and the inside of the rotating grooves. The torsion spring (9) is in a stretched state in its initial state, and enables the end of the rotating plate (8) away from the fixed block (6) to be pressed against the top and bottom of the crushing chamber (3) in correspondence.

3. The agricultural product pesticide residue detection device according to claim 1, characterized in that: in: A plurality of extrusion teeth (10) are fixedly connected to one side of the rotating plate (8) close to the center of the circular cavity (22), and the plurality of extrusion teeth (10) are distributed on the rotating plate (8) in a rectangular array.

4. The agricultural product pesticide residue detection device according to claim 1, characterized in that: in: A plurality of sliding grooves (11) are fixedly connected to the rotating plate (8) at one side away from the center of the circular cavity (22), a sliding block (12) is slidably connected inside the sliding groove (11), and a return spring (13) is fixedly connected between the sliding block (12) and the bottom of the sliding groove (11).

5. The agricultural product pesticide residue detection device according to claim 1, characterized in that: in: The crushing assembly comprises a driving motor (14), the driving motor (14) being mounted on a mounting frame (1) via a bracket which seals and penetrates an annular tube (26), the output end of the driving motor (14) being coaxially fixedly connected with a driving shaft (15), the end of the driving shaft (15) which is away from the driving motor (14) seals and penetrates the lower part of the box body (2) and the fixing block (6), and extends into the circular cavity (22), and is fixedly connected with a fixing ring (16), and a plurality of crushing rods (17) are fixedly connected to the outer peripheral side of the fixing ring (16).

6. The agricultural product pesticide residue detection device according to claim 5, characterized in that: in: The end of the crushing rod (17) away from the fixed ring (16) is fixedly connected to a curved block (18), and the curved block (18) is coaxially sealed and rotatably matched with the inner circumference of the circular cavity (22). The top and bottom of the curved block (18) are both provided with curved grooves (19), and a curved slider (20) is slidably connected in the curved groove (19). A supporting spring (21) is fixedly connected between the curved slider (20) and the bottom of the curved groove (19). After the curved slider (20) is rotated away from the supporting spring (21), it is in sliding contact with the rotating plate (8). The end of the curved block (18) away from the inner wall of the circular cavity (22) is wedge-shaped, and the wedge-shaped inclined surface is directly opposite to the rotating front and points to the middle of the circular cavity (22).

7. The agricultural product pesticide residue detection device according to claim 1, characterized in that: in: The dosing pipe (29) is provided with a dosing valve (30), and the discharge pipe (31) is provided with a discharge valve (32).

8. The agricultural product pesticide residue detection device according to claim 5, characterized in that: in: The driving motor (14) is a double-shaft motor, and the other output end of the driving motor (14) is sealed and penetrates the top of the detection cylinder (27) and is fixedly connected to a plurality of stirring rods (28).

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