Crop pesticide residue detecting and sampling device

Abstract

The utility model relates to the technical field of sampling equipment, and discloses a crop pesticide residue detecting and sampling device, which comprises a fixed disc and a handle fixedly arranged on the fixed disc, two arc-shaped plates capable of being enclosed into a similar cylinder shape are movably arranged on the fixed disc, the edge of one end of each arc-shaped plate far away from the fixed disc is provided with a blade part, and the blade part is provided with a handle. Two T-shaped blocks are symmetrically and fixedly installed on the fixing disc, two first fixing columns are symmetrically and fixedly installed on the two arc-shaped plates, the two arc-shaped plates are rotationally installed between the two T-shaped blocks through the first fixing columns, and the two arc-shaped plates are located on the side, away from the handle, of the fixing disc; and a transmission mechanism capable of driving the blade part ends of the two arc-shaped plates to rotate oppositely is arranged on the handle. The utility model aims to solve the problems that a sampling method adopting manual cutting is low in efficiency, and the consistency and representativeness of samples are difficult to guarantee due to lack of standardized operation.

Description

Technical Field

[0001] The utility model belongs to the technical field of sampling equipment, and in particular relates to a sampling device for detecting pesticide residues in crops. Background Art

[0002] Agricultural products are items produced in agriculture. Nationally, primary agricultural products refer to plants, animals, and their products obtained from agricultural activities. To increase agricultural production, pesticides are often sprayed on them. However, pesticides not only kill pests but are also toxic to humans. The accuracy and reliability of pesticide residue testing are directly related to food safety and consumer health. Sampling is a critical step in the agricultural product testing process. Traditional sampling methods rely primarily on manual cutting, where fruits and vegetables are cut into small, standardized pieces for easier testing.

[0003] However, manual sampling is not only inefficient, but also lacks standardized procedures, making it difficult to ensure sample consistency and representativeness. Furthermore, the instability of the cutting operation can lead to sample contamination, affecting the accuracy of test results. Therefore, we propose a sampling device for crop pesticide residue detection to address these issues. Utility Model Content

[0004] The utility model aims to solve the problem that a sampling method by manual cutting is not only inefficient but also difficult to ensure the consistency and representativeness of samples due to the lack of standardized operation.

[0005] In order to achieve the above technical objectives, the technical solutions adopted by this utility model are as follows:

[0006] A device for detecting and sampling pesticide residues in crops comprises a fixed disk and a handle fixedly mounted on the fixed disk, wherein two arc-shaped plates that can be enclosed into a cylindrical shape are movably mounted on the fixed disk, and the edges of the two arc-shaped plates at one end away from the fixed disk are provided with cutting edges, two T-shaped blocks are symmetrically fixedly mounted on the fixed disk, and two first fixing columns are symmetrically fixedly mounted on the two arc-shaped plates, and the two arc-shaped plates are rotatably mounted between the two T-shaped blocks via the first fixing columns, and the two arc-shaped plates are located on a side of the fixed disk away from the handle, and the handle is provided with a transmission mechanism that can drive the cutting ends of the two arc-shaped plates to rotate toward each other.

[0007] It is further defined that the transmission mechanism includes a movable ring, a movable block, a connecting column, a pressure rod, four pillars and four transfer rods, the movable ring is sleeved on the handle, a cylindrical groove and a waist-shaped opening passing through the cylindrical groove are provided in the handle, the movable block is movably installed in the cylindrical groove, the connecting column is fixedly installed between the movable block and the movable ring, the connecting column is movable in the waist-shaped opening, the pressure rod is fixedly installed on the end of the movable block away from the fixed disk, the end of the pressure rod passes through the handle, the four pillars are symmetrically fixed on the movable ring in pairs, the four transfer rods are rotatably installed on the four pillars respectively, two second fixed columns are symmetrically fixed on both arc plates, and the four transfer rods are rotatably connected to the two second fixed columns on the two arc plates respectively. With such a structural design, the movable block and the connecting column can be driven by the pressure rod to move in the cylindrical groove and the waist-shaped opening, thereby pushing the movable ring toward the fixed disk. At this time, the four transfer rods can drive the arc plate to rotate around the first fixed column through the second fixed column.

[0008] Furthermore, a compression spring is fixedly installed between the movable block and the groove wall of the cylindrical groove on the side close to the fixed plate. With this structural design, the compression spring applies force to the movable block, so that the movable block can return to its initial state when no external force is applied, which is more convenient to use.

[0009] Furthermore, an elastic membrane is fixedly connected between the two curved plates and between the two curved plates and the fixed plate. With this structural design, the elastic membrane can fill the gap between the two curved plates or between the two curved plates and the fixed plate to prevent the flesh or peel of the fruit from falling during sampling, thereby affecting the sampling process.

[0010] Furthermore, the handle is covered with a non-slip rubber sleeve, and the pressure rod passes through one end of the handle and is fixed with a rubber pressure block. Such a structural design can improve the user's comfort when using the device through the non-slip rubber sleeve and the rubber pressure block.

[0011] The utility model adopting the above technical solution has the following advantages:

[0012] The utility model has two curved plates that can be enclosed into a cylindrical shape. The two curved plates are pressed to the surface of the fruit through the handle and the fixed plate to cut part of the flesh and peel of the fruit, and a standardized sampling operation can be achieved. The transmission mechanism is used to rotate the blade ends of the two curved plates toward each other. The ends of the two curved plates that penetrate into the flesh are retracted, which can reduce the size of the flesh connection section. The ends of the two curved plates that rotate toward each other will clamp the flesh, so that the flesh and peel located between the two curved plates can be separated from the fruit. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention can be further described by way of non-limiting examples given in the accompanying drawings;

[0014] Fig. 1This is a schematic structural diagram of a sampling device for detecting pesticide residues in crops according to the present invention;

[0015] Fig. 2 This is a structural diagram of a crop pesticide residue detection and sampling device according to the present invention, in which the pressure rod and the handle are separated;

[0016] Fig. 3 This is a schematic cross-sectional view of the handle end portion of a sampling device for detecting pesticide residues in crops according to the present invention;

[0017] Fig. 4 The utility model is a structural schematic diagram of a crop pesticide residue detection and sampling device in which two arc-shaped plates are rotating toward each other.

[0018] The main component symbols are described as follows:

[0019] 1. Fixed plate; 11. T-shaped block;

[0020] 2. Handle; 21. Cylindrical groove; 22. Waist-shaped opening; 23. Rubber pressure block;

[0021] 3. Curved plate; 31. First fixing column; 32. Second fixing column;

[0022] 4. Transmission mechanism; 41. Movable ring;

[0023] 42. Movable block; 421. Compression spring;

[0024] 43. Connecting column; 44. Pressure rod; 45. Support column; 46. Transfer rod;

[0025] 5. Elastic membrane. DETAILED DESCRIPTION

[0026] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that similar or identical parts in the drawings or in the specification are numbered the same. Implementations not shown or described in the drawings are forms known to those skilled in the art. In addition, directional terms such as "upper," "lower," "top," "bottom," "left," "right," "front," and "back" mentioned in the embodiments are merely references to the directions in the drawings and are not intended to limit the scope of protection of the present invention.

[0027] like Figs. 1-4As shown, the utility model is a sampling device for detecting pesticide residues in crops, comprising a fixed disk 1 and a handle 2 fixedly mounted on the fixed disk 1. The handle 2 is provided with an anti-skid rubber sleeve, which can effectively prevent the operator from making operational errors due to slipping of the handle 2 during use. The rubber material has good anti-skid performance, which can improve the safety and operational stability of the sampling device. Two arc plates 3 that can be enclosed into a cylindrical shape are movably mounted on the fixed disk 1. The edges of the two arc plates 3 at one end away from the fixed disk 1 are provided with a blade. Two T-shaped blocks 11 are symmetrically fixedly mounted on the fixed disk 1. Both arc plates 3 have blades. Two first fixed columns 31 are symmetrically fixedly installed, and the two curved plates 3 are rotatably installed between the two T-shaped blocks 11 through the first fixed columns 31. The two curved plates 3 are located on the side of the fixed disk 1 away from the handle 2. The two curved plates 3 and the two curved plates 3 and the fixed disk 1 are fixedly connected with an elastic membrane 5. The elastic membrane 5 cooperates with the two curved plates 3 and the fixed disk 1 to form a space for accommodating fruit and pulp samples, which can prevent samples from falling from the gap or sample contamination due to improper operation, affecting the sampling work. A transmission mechanism 4 is provided on the handle 2, which can drive the blade ends of the two curved plates 3 to rotate toward each other.

[0028] The transmission mechanism 4 includes a movable ring 41, a movable block 42, a connecting column 43, a pressure rod 44, four pillars 45 and four transfer rods 46. The movable ring 41 is sleeved on the handle 2. A cylindrical groove 21 and a waist-shaped opening 22 passing through the cylindrical groove 21 are provided in the handle 2. The movable block 42 is movably installed in the cylindrical groove 21. The connecting column 43 is fixedly installed between the movable block 42 and the movable ring 41. The connecting column 43 moves in the waist-shaped opening 22. The pressure rod 44 is fixedly installed on the end of the movable block 42 away from the fixed disk 1. The end of the pressure rod 44 passes through the handle 2. A rubber pressure block 23 is fixedly installed on the end of the pressure rod 44 passing through the handle 2. The setting of the rubber pressure block 23 can provide a better feel during operation, increase the force area of ​​the pressure rod 44, and reduce the operator's labor. To reduce the fatigue of the staff, the four pillars 45 are symmetrically fixed on the movable ring 41 in pairs, and the four transfer rods 46 are rotatably installed on the four pillars 45. Two second fixed pillars 32 are symmetrically fixed on the two arc-shaped plates 3. The four transfer rods 46 are rotatably connected to the two second fixed pillars 32 on the two arc-shaped plates 3. A compression spring 421 is fixedly installed between the movable block 42 and the groove wall of the cylindrical groove 21 close to the fixed disk 1. The selection of the compression spring 421 can be based on actual needs. Appropriate elastic force and size can be selected to ensure smooth movement and stable resetting of the movable block 42. In addition, the material of the compression spring 421 can be selected from metal materials with good elasticity and durability to improve the overall performance and service life of the device.

[0029] The method of using the utility model is as follows:

[0030] When in use, the handle 2 is used to control the two curved plates 3 at the end of the fixed disk 1 to approach the surface of the fruit to be sampled, and force is applied in the direction of the fruit. The blades of the two curved plates 3 cut through the fruit and extend into the flesh of the fruit.

[0031] When the curved plate 3 is extended into the fruit flesh, the rubber pressure block 23 presses the pressure rod 44 at the end of the handle 2, so that the pressure rod 44 drives the movable block 42 to move in the cylindrical groove 21. Driven by the connecting column 43 and the movable block 42, the movable ring 41 drives the pillar 45 to push the transfer rod 46 to move. The two curved plates 3 are subjected to force, and the ends thereof extending into the fruit flesh rotate toward each other, forming a contraction shape, which can reduce the size of the fruit flesh connection section. The ends of the two curved plates 3 that rotate toward each other will clamp the fruit flesh. At this time, a pulling force away from the fruit flesh is applied by the handle 2, so that the fruit flesh and peel located between the two curved plates 3 can be separated from the fruit flesh.

[0032] After the separation of the pulp is completed, the rubber pressing block 23 is released, and the pressure rod 44 will be driven to return to its initial state under the elastic force of the compression spring 421, and the pulp will fall downward under the action of gravity, which is convenient for collection and does not affect subsequent use.

[0033] The above describes in detail the crop pesticide residue detection and sampling device provided by the present invention. The description of the specific embodiments is intended only to facilitate understanding of the method and core concept of the present invention. It should be noted that those skilled in the art may make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the claims of the present invention.

Claims

1. A sampling device for detecting pesticide residues in crops, comprising a fixed plate (1) and a handle (2) fixedly mounted on the fixed plate (1), characterized in that: Two arc-shaped plates (3) that can be enclosed into a cylindrical shape are movably mounted on the fixed disk (1). The edges of the two arc-shaped plates (3) at one end away from the fixed disk (1) are provided with a blade. Two T-shaped blocks (11) are symmetrically fixedly mounted on the fixed disk (1). Two first fixed columns (31) are symmetrically fixedly mounted on the two arc-shaped plates (3). The two arc-shaped plates (3) are rotatably mounted between the two T-shaped blocks (11) via the first fixed columns (31). The two arc-shaped plates (3) are located on a side of the fixed disk (1) away from the handle (2). The handle (2) is provided with a transmission mechanism (4) that can drive the blade ends of the two arc-shaped plates (3) to rotate toward each other.

2. The crop pesticide residue detection sampling device according to claim 1, characterized in that: The transmission mechanism (4) comprises a movable ring (41), a movable block (42), a connecting column (43), a pressure rod (44), four pillars (45) and four transfer rods (46); the movable ring (41) is sleeved on the handle (2); a cylindrical groove (21) and a waist-shaped opening (22) passing through the cylindrical groove (21) are provided in the handle (2); the movable block (42) is movably installed in the cylindrical groove (21); the connecting column (43) is fixedly installed between the movable block (42) and the movable ring (41); the connecting column (43) is movably installed in the cylindrical groove (21); In the waist-shaped opening (22), the pressure rod (44) is fixedly mounted on one end of the movable block (42) away from the fixed plate (1), and the end of the pressure rod (44) passes through the handle (2). The four pillars (45) are symmetrically fixedly mounted on the movable ring (41) in pairs, and the four transfer rods (46) are rotatably mounted on the four pillars (45). Two second fixed pillars (32) are symmetrically fixedly mounted on the two arc-shaped plates (3), and the four transfer rods (46) are rotatably connected to the two second fixed pillars (32) on the two arc-shaped plates (3).

3. The crop pesticide residue detection sampling device according to claim 2, characterized in that: A compression spring (421) is fixedly installed between the movable block (42) and the groove wall of the cylindrical groove (21) on the side close to the fixed disk (1).

4. The crop pesticide residue detection sampling device according to claim 1, characterized in that: The two arc-shaped plates (3) and the two arc-shaped plates (3) and the fixed disk (1) are all fixedly connected with an elastic membrane (5).

5. The crop pesticide residue detection sampling device according to claim 2, characterized in that: The handle (2) is covered with an anti-slip rubber sleeve, and one end of the pressure rod (44) passing through the handle (2) is fixedly mounted with a rubber pressure block (23).

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