A sampling device for detecting pesticide residues in agricultural products

Abstract

The present invention provides a sampling device for detecting pesticide residues in agricultural products, comprising a sampling box, wherein a box door is hinged on the side of the sampling box; comprising a mounting frame, a perforated plate and a sampling slot, wherein the mounting frame is movably connected to the inside of the sampling box through a first sampling mechanism, a perforated plate is arranged at the bottom of the mounting frame, and the sampling slot is arranged at the inner bottom of the sampling box. The present invention can shake the agricultural products through a first motor, a rotating shaft, a ball screw, a slider and a ball nut pair, throw out water on the surface and the interlayer, and perform sampling; the present invention can squeeze the agricultural products through the second sampling mechanism, the first clamping plate, the second clamping plate, the second motor, the gear, the first rack, the second rack, the first transmission block and the second transmission block, fully squeeze out the water in the interlayer for subsequent detection, detect the pesticide residue rate of the agricultural products, and improve the detection accuracy.

Description

Technical Field

[0001] One or more embodiments of the present specification relate to the field of agricultural product testing equipment, and in particular, to a sampling device for detecting pesticide residues in agricultural products. Background Art

[0002] Agricultural products are items produced in agriculture, such as sorghum, rice, peanuts, corn, wheat, and local specialties of various regions. The state stipulates that primary agricultural products refer to plants, animals and their products obtained from agricultural activities, excluding various processed products. It is expected that in 2017, the winter rapeseed planting area may continue to decrease due to the lack of obvious recovery in planting income. Rapeseed oil continues to be dumped, and the structural adjustment of the "Sickle Bend" planting industry has increased the domestic supply of oilseeds such as sunflower seeds and peanuts. China and Canada have reached a consensus on the new regulations on China's import of Canadian rapeseed impurities, and rapeseed imports are expected to increase in the new year. In addition, global palm oil production may recover, and it is expected that edible oilseeds and vegetable oils are unlikely to rise sharply.

[0003] In the prior art, agricultural products need to be tested for pesticides remaining in the moisture on the surface or inside during the production process, but the traditional detection method is to manually remove the moisture on the surface of the agricultural products for detection. The sampling method is simple, resulting in poor detection effect and low detection accuracy. In summary, the present application now proposes a sampling device for detecting pesticide residues in agricultural products to solve the above-mentioned problems. Summary of the invention

[0004] In view of this, the purpose of one or more embodiments of this specification is to provide a sampling device for detecting pesticide residues in agricultural products to solve the problems raised in the background technology.

[0005] Based on the above purpose, one or more embodiments of the present specification provide a sampling device for detecting pesticide residues in agricultural products, including a sampling box, a box door hinged on the side of the sampling box; including a mounting frame, a perforated plate and a sampling slot, the mounting frame is movably connected to the interior of the sampling box through a first sampling mechanism, a perforated plate is arranged at the bottom of the mounting frame, and the sampling slot is arranged at the inner bottom of the sampling box.

[0006] Preferably, the first sampling mechanism includes a first motor, a rotating shaft, a ball screw, a slider and a ball nut pair. The first motor is welded to the side wall of the sampling box. The rotating shaft is rotatably connected inside the sampling box and driven to rotate by the first motor. The ball screw is coaxially fixed and rotatably connected to the rotating shaft inside the sampling box. The slider is slidably connected inside the sampling box and fixedly connected to the mounting frame through a connecting rod. The ball nut pair is arranged inside the slider and is sleeved on the outside of the ball screw.

[0007] More preferably, the first sampling mechanism also includes a transmission shaft, a toothless gear, a transmission gear and a torsion spring. The transmission shaft is rotatably connected to the inside of the sampling box and is driven to rotate by the first motor. The toothless gear is arranged on the transmission shaft, and the transmission gear is arranged on the rotating shaft, and the transmission gear is meshed with the toothless gear. One side wall of the torsion spring is tightly connected to the inner wall of the sampling box, and the torsion spring is sleeved on the annular side surface of the transmission shaft, and the inner wall of the torsion spring is tightly connected to the annular side surface of the transmission shaft.

[0008] Preferably, transparent observation windows are provided on the sides of the sampling box and the sampling trough.

[0009] Preferably, a filter screen is provided inside the sampling tank.

[0010] Preferably, it also includes a second sampling mechanism, a first clamping plate, a second clamping plate, a second motor, a gear, a first rack, a second rack, a first transmission block and a second transmission block. The second sampling mechanism includes: the first clamping plate and the second clamping plate are symmetrically slidably connected inside the mounting frame, the second motor is arranged on the top of the mounting frame, the gear is arranged on the output end of the second motor, the first rack and the second rack are centrally symmetrically slidably connected to the mounting frame, and the first rack and the second rack are both meshed with the gear, the first transmission block is fixedly connected to the first rack, the second transmission block is fixedly connected to the second rack, and the first transmission block is fixedly connected to the first clamping plate through the first connecting rod, and the second transmission block is fixedly connected to the second clamping plate through the second connecting rod.

[0011] More preferably, the second motor is electrically connected to an external controller, and the external controller drives the second motor to perform reciprocating forward and reverse cyclic motion.

[0012] From the above description, it can be seen that the beneficial effects of the present invention are as follows: the present invention can make the agricultural products shake, throw out the water on the surface and the interlayer, and perform sampling through the first motor, the rotating shaft, the ball screw, the slider and the ball nut pair; the present invention can squeeze the agricultural products and fully squeeze out the water in the interlayer through the second sampling mechanism, the first clamping plate, the second clamping plate, the second motor, the gear, the first rack, the second rack, the first transmission block and the second transmission block for subsequent detection, so as to detect the pesticide residue rate of the agricultural products and improve the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate one or more embodiments of the present specification or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only one or more embodiments of the present specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a structural schematic diagram of the present invention;

[0015] Figure 2 It is a structural schematic diagram of the first sampling mechanism in the present invention;

[0016] Figure 3 for Figure 2 A schematic structural diagram of a preferred solution;

[0017] Figure 4-Figure 5 It is a schematic diagram of the structure of the second sampling mechanism in the present invention.

[0018] In the accompanying drawings: 1. sampling box; 2. mounting frame; 3. first sampling mechanism; 4. orifice plate; 5. sampling slot; 6. second sampling mechanism; 31. first motor; 32. rotating shaft; 33. ball screw; 34. slider; 35. ball nut pair; 36. toothless gear; 37. transmission shaft; 38. transmission gear; 39. torsion spring; 61a. first clamping plate; 61b. second clamping plate; 62a. first transmission block; 62b. second transmission block; 63a. first rack; 63b. second rack; 64a. first connecting rod; 64b. second connecting rod; 65. gear; 66. second motor. DETAILED DESCRIPTION

[0019] In order to make the objectives, technical solutions and advantages of the present disclosure more clearly understood, the present disclosure is further described in detail below in conjunction with specific embodiments.

[0020] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in one or more embodiments of this specification should be understood by people with ordinary skills in the field to which this disclosure belongs. The "first", "second" and similar words used in one or more embodiments of this specification do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] Embodiment 1

[0022] See also Figure 1-Figure 2A sampling device for detecting pesticide residues in agricultural products includes a sampling box 1, a box door is hinged on the side of the sampling box 1; it includes a mounting frame 2, a perforated plate 4 and a sampling slot 5, the mounting frame 2 is movably connected to the inside of the sampling box 1 through a first sampling mechanism 3, the bottom of the mounting frame 2 is provided with a perforated plate 4, and the sampling slot 5 is provided at the inner bottom of the sampling box 1.

[0023] As an improved scheme of the above scheme, the first sampling mechanism 3 includes a first motor 31, a rotating shaft 32, a ball screw 33, a slider 34 and a ball nut pair 35. The first motor 31 is welded to the side wall of the sampling box 1. The rotating shaft 32 is rotatably connected inside the sampling box 1 and is driven to rotate by the first motor 31. The ball screw 33 is coaxially fixed and rotatably connected with the rotating shaft 32 inside the sampling box 1. The slider 34 is slidably connected inside the sampling box 1, and the slider 34 is fixedly connected to the mounting frame 2 through a connecting rod. The ball nut pair 35 is arranged inside the slider 34 and is sleeved on the outside of the ball screw 33.

[0024] Working process: Run the first motor 31, the output end of the first motor 31 rotates to drive the rotating shaft 32 to rotate, the rotating shaft 32 drives the ball screw 33 to rotate, the ball screw 33 rotates to cooperate with the ball nut pair 35 to drive the slider 34 to slide left or right, the slider 34 drives the mounting frame 2 to move left or right, so that the agricultural products inside shake, and the water remaining on the surface is thrown out during the shaking process, and flows downward through the orifice plate 4 and enters the sampling tank 5 for storage.

[0025] Embodiment 2

[0026] See also Figure 3 As an improved solution of the above solution, the first sampling mechanism 3 also includes a transmission shaft 37, a toothless gear 36, a transmission gear 38 and a torsion spring 39. The transmission shaft 37 is rotatably connected to the inside of the sampling box 1 and is driven to rotate by the first motor 31. The toothless gear 36 is arranged on the transmission shaft 37, the transmission gear 38 is arranged on the rotating shaft 32, and the transmission gear 38 is meshed with the toothless gear 36. A side wall of the torsion spring 39 is tightly connected to the inner wall of the sampling box 1, and the torsion spring 39 is sleeved on the annular side surface of the transmission shaft 37, and the inner wall of the torsion spring 39 is tightly connected to the annular side surface of the transmission shaft 37.

[0027] As an improved solution of the above solution, transparent observation windows are provided on the sides of the sampling box 1 and the sampling slot 5 .

[0028] As an improvement of the above solution, a filter screen is provided inside the sampling tank 5 .

[0029] Working process: while the first motor 31 is running, the output end of the first motor 31 rotates to drive the transmission shaft 37 to rotate, the transmission shaft 37 drives the toothless gear 36 to rotate, the toothless gear 36 meshes and rotates with the transmission gear 38, the transmission gear 38 drives the rotating shaft 32 to rotate, the rotating shaft 32 drives the torsion spring 39 to deform, the rotating shaft 32 drives the ball screw 33 to rotate, the ball screw 33 cooperates with the ball nut pair 35 to drive the slider 34 to slide to one side.

[0030] Until the tooth groove of the toothless gear 36 is separated from the tooth groove of the transmission gear 38, the rotating shaft 32 loses the meshing force, the torsion spring 39 restores the elastic force and drives the rotating shaft 32 to return to rotation, the rotating shaft 32 drives the ball screw 33 to return to rotation, the ball screw 33 cooperates with the ball nut pair 35 to drive the slider 34 to slide to the other side, thereby completing the reciprocating shaking of the agricultural products and improving the efficiency of water removal.

[0031] Embodiment 3

[0032] See also Figure 4-Figure 5 , as an improved scheme of the above scheme, it also includes a second sampling mechanism 6, a first clamping plate 61a, a second clamping plate 61b, a second motor 66, a gear 65, a first rack 63a, a second rack 63b, a first transmission block 62a and a second transmission block 62b, the second sampling mechanism 6 includes, the first clamping plate 61a and the second clamping plate 61b are symmetrically slidably connected inside the mounting frame 2, the second motor 66 is arranged at the top of the mounting frame 2, the gear 65 is arranged on the output end of the second motor 66, the first rack 63a and the second rack 63b are centrally symmetrically slidably connected to the mounting frame 2, and the first rack 63a and the second rack 63b are both meshed with the gear 65, the first transmission block 62a is fixedly connected to the first rack 63a, the second transmission block 62b is fixedly connected to the second rack 63b, and the first transmission block 62a is fixedly connected to the first clamping plate 61a through the first connecting rod 64a, and the second transmission block 62b is fixedly connected to the second clamping plate 61b through the second connecting rod 64b.

[0033] As an improved solution of the above solution, the second motor 66 is electrically connected to an external controller, and the external controller drives the second motor 66 to perform reciprocating forward and reverse cyclic motion.

[0034] Working process: run the second motor 66, the output end of the second motor 66 rotates to drive the gear 65 to rotate, the gear 65 drives the first rack 63a and the second rack 63b to move towards each other, and drives the first transmission block 62a and the second transmission block 62b to move towards each other, the first transmission block 62a and the second transmission block 62b drive the first clamping plate 61a and the second clamping plate 61b to move towards each other, and apply force to the agricultural products to squeeze out the water in the interlayer of the agricultural products, and complete the sampling operation.

[0035] One or more embodiments of this specification are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of one or more embodiments of this specification should be included in the scope of protection of this disclosure.

Claims

1. A sampling device for detecting pesticide residues in agricultural products, comprising: A sampling box (1), wherein a door is hingedly connected to the side of the sampling box (1); characterized in that it comprises: An installation frame (2), the installation frame (2) being movably connected to the interior of the sampling box (1) via a first sampling mechanism (3); An orifice plate (4), the bottom of the installation frame (2) is provided with an orifice plate (4); and A sampling groove (5), wherein the sampling groove (5) is arranged at the inner bottom of the sampling box (1); The first sampling mechanism (3) comprises: A first motor (31), wherein the first motor (31) is welded to a side wall of the sampling box (1); A rotating shaft (32), the rotating shaft (32) is rotatably connected to the interior of the sampling box (1) and is driven to rotate by the first motor (31); A ball screw (33), the ball screw (33) is coaxially fixedly rotatably connected with the rotating shaft (32) inside the sampling box (1); A slider (34), the slider (34) is slidably connected inside the sampling box (1), and the slider (34) is fixedly connected to the installation frame (2) via a connecting rod; and A ball nut pair (35), wherein the ball nut pair (35) is arranged inside the slider (34) and sleeved outside the ball screw (33); The first sampling mechanism (3) further comprises: A transmission shaft (37), the transmission shaft (37) is rotatably connected to the interior of the sampling box (1) and is driven to rotate by the first motor (31); a toothless gear (36), wherein the toothless gear (36) is arranged on a transmission shaft (37); a transmission gear (38), wherein the transmission gear (38) is disposed on the rotating shaft (32), and the transmission gear (38) is meshed with the toothless gear (36); and A torsion spring (39), wherein one side wall of the torsion spring (39) is tightly connected to the inner wall of the sampling box (1), and the torsion spring (39) is sleeved on the annular side surface of the transmission shaft (37), and the inner wall of the torsion spring (39) is tightly connected to the annular side surface of the transmission shaft (37); The invention also comprises: a second sampling mechanism (6), wherein the second sampling mechanism (6) comprises: A first clamping plate (61a) and a second clamping plate (61b), wherein the first clamping plate (61a) and the second clamping plate (61b) are symmetrically slidably connected inside the installation frame (2); A second motor (66), the second motor (66) being arranged on the top of the mounting frame (2); a gear (65), the gear (65) being arranged on the output end of the second motor (66); A first rack (63a) and a second rack (63b), wherein the first rack (63a) and the second rack (63b) are centrally symmetrically slidably connected to the mounting frame (2), and the first rack (63a) and the second rack (63b) are both meshed with the gear (65); and A first transmission block (62a) and a second transmission block (62b), wherein the first transmission block (62a) is fixedly connected to the first rack (63a), the second transmission block (62b) is fixedly connected to the second rack (63b), and the first transmission block (62a) is fixedly connected to the first clamping plate (61a) is fixedly connected via a first connecting rod (64a), and the second transmission block (62b) and the second clamping plate (61b) are fixedly connected via a second connecting rod (64b); The second motor (66) is electrically connected to an external controller, and the external controller drives the second motor (66) to perform reciprocating forward and reverse cyclic motion.

2. A sampling device for detecting pesticide residues in agricultural products according to claim 1, characterized in that: Transparent observation windows are provided on the sides of the sampling box (1) and the sampling slot (5).

3. A sampling device for detecting pesticide residues in agricultural products according to claim 1, characterized in that: A filter screen is arranged inside the sampling tank (5).

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