Pesticide residue detecting and sampling device

Abstract

The utility model relates to the technical field of fruit and vegetable pesticide residue detection, and discloses a pesticide residue detection sampling device which comprises a working table, a filter plate is fixedly installed at the top of the working table, a liquid outlet is formed in the inner wall of the bottom of the working table, and a top plate is fixedly connected to the outer wall of the top of the working table through stand columns. A hydraulic cylinder is fixedly installed on the upper surface of the top plate, and a juicing mechanism is arranged on the top of the workbench. According to the pesticide residue detecting and sampling device, a juicing mechanism is arranged and is matched with guiding and limiting of a spiral chute and a convex ball, so that a pressing plate rotates after fruits, vegetables and a transmission plate are stressed in the downward moving process, meanwhile, a volute spiral spring is arranged in a matched mode, and after the fruits and the vegetables are broken, the stress between the pressing plate and a rotating ring is weakened; at the moment, the rotating ring is driven to reversely rotate under the elastic force of the volute spiral spring, and the fruit and vegetable are repeatedly rubbed to squeeze juice in cooperation with the raised grains, so that the extraction efficiency of the fruit and vegetable extracting solution is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fruit and vegetable pesticide residue detection, and specifically relates to a sampling device for pesticide residue detection. Background Technique

[0002] Pesticide residue refers to the general term of pesticide parent bodies, derivatives, metabolites, degradation products and impurities remaining in the environment, organisms and foods after pesticide use. In the production and cultivation process of fruit and vegetable foods, it is inevitable to use pesticides, but pesticide residues are harmful to the human body. Therefore, it is necessary to detect the pesticide residues of fruit and vegetable foods during production and sales.

[0003] According to a disclosed sampling device for fruit and vegetable pesticide residue detection (publication number: CN219391509U), in the above application, by placing fruits and vegetables on a fixed sieve plate and squeezing them through a pressing mechanism at the top, the liquid in the pulp flows out, so as to obtain a fruit and vegetable extract, which better facilitates the subsequent pesticide residue detection work.

[0004] However, in the actual use process of the above equipment, the squeezing and juicing process of the pulp is only achieved by squeezing at the top, resulting in poor extraction efficiency of the liquid in the fruits and vegetables, a small total amount of the obtained fruit and vegetable extract, and the inability to completely extract the juice inside the fruits and vegetables, which is likely to cause waste of fruits and vegetables and lead to a decline in the detection accuracy of pesticide residues. In view of this, we have proposed a sampling device for pesticide residue detection. Content of the Utility Model

[0005] The purpose of the utility model is to provide a sampling device for pesticide residue detection to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A sampling device for pesticide residue detection, including a workbench, a filter plate is fixedly installed on the top of the workbench, a liquid outlet is opened on the inner wall of the bottom of the workbench, a top plate is fixedly connected to the outer wall of the top of the workbench through a column, a hydraulic cylinder is fixedly installed on the upper surface of the top plate, and a juicing mechanism is arranged on the top of the workbench. The juicing mechanism includes:

[0007] A transmission column, the output end of the hydraulic cylinder is fixedly connected to the transmission column, a transmission sleeve is sleeved on the arc-shaped outer surface of the transmission column, and a pressing plate is fixedly installed at the bottom of the transmission sleeve;

[0008] A convex ball, a convex ball is fixedly installed on the arc-shaped outer surface of the transmission column, a spiral chute is opened on the inner surface of the transmission sleeve, the convex ball is arranged inside the spiral chute, a return spring is fixedly connected between the bottom end of the transmission column and the inner wall of the bottom of the transmission sleeve, and a corrugation is opened on the lower surface of the pressing plate;

[0009] Fixing sleeve, a fixing sleeve is fixedly installed on the upper surface of the filter plate, a rotating ring is rotatably installed on the inner surface of the fixing sleeve, and a scroll spring is fixedly connected between the fixing sleeve and the rotating ring.

[0010] Preferably, the pressing plate is circularly arranged, and the outer diameter of the pressing plate is adapted to the inner diameter of the rotating ring. The centers of the pressing plate and the rotating ring are arranged on the same vertical line, so that when the pressing plate moves downward under the drive of the hydraulic cylinder, it can completely enter the inside of the rotating ring.

[0011] Preferably, the number of the corrugations is set to be multiple groups, and the multiple groups of corrugations are evenly distributed in a circumferential array on the lower surface of the pressing plate.

[0012] Preferably, a limiting ring is arranged on the arc-shaped outer surface of the rotating ring, and a rotating groove adapted to the limiting ring is formed in the inner wall of the fixing sleeve. The limiting ring is arranged inside the rotating groove to facilitate the setting of the scroll spring.

[0013] Preferably, a positioning ring is fixedly installed on the arc-shaped inner wall of the rotating ring, an activity groove is formed in the inner wall of the positioning ring, an activity plate is movably arranged on the inner surface of the activity groove, and an arc-shaped convex block is fixedly installed on the lower surface of the activity plate.

[0014] Preferably, the activity plate includes an inner diameter end and an outer diameter end, limiting plates are arranged on the surfaces of the inner diameter end and the outer diameter end, and a sliding groove with a thickness greater than that of the limiting plate is arranged on the inner wall of the activity groove, so that the activity plate can move vertically inside the activity groove.

[0015] Preferably, the outer diameter of the arc-shaped convex block is smaller than the diameter of the mesh hole formed in the filter plate, so that when the rotating ring drives the positioning ring to rotate, the activity plate can be driven to move up and down along the activity groove under the limitation of the arc-shaped convex block.

[0016] Compared with the prior art, the present utility model provides a pesticide residue detection sampling device, which has the following beneficial effects:

[0017] 1. In this pesticide residue detection sampling device, through the setting of the juicing mechanism, with the guidance and limitation of the spiral chute and the convex ball, when the pressing plate moves downward, it will rotate after being stressed by the fruit and vegetable and the transmission plate. At the same time, with the setting of the scroll spring, after the fruit and vegetable are broken, the stress between the pressing plate and the rotating ring is weakened. At this time, under the elastic force of the scroll spring, the rotating ring is driven to rotate in the reverse direction, and together with the corrugations, the fruit and vegetable are repeatedly rubbed to achieve a juicing effect, improving the extraction efficiency of the fruit and vegetable extract.

[0018] 2. The pesticide residue detection sampling device is provided with a movable plate inside the positioning ring. When the rotating ring drives the positioning ring to rotate, due to the restriction of the mesh holes on the filter plate on the arc-shaped convex blocks, the movable plate is driven to move vertically along the inner wall of the movable groove in cooperation with the contact between the mesh holes opened on the filter plate and the arc-shaped convex blocks, thereby improving the pressing and juicing efficiency of the fruits and vegetables between the positioning ring and the pressing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main structure of the present utility model;

[0020] Figure 2 It is a schematic cross-sectional view of the transmission sleeve of the present utility model;

[0021] Figure 3 It is an exploded view of the transmission column, transmission sleeve and return spring of the present utility model;

[0022] Figure 4 It is a schematic diagram of the fixed sleeve, rotating ring and filter plate structure of the present utility model;

[0023] Figure 5 It is a schematic cross-sectional view of the fixed sleeve of the present utility model;

[0024] Figure 6 It is a schematic cross-sectional view of the rotating ring of the present utility model;

[0025] Figure 7 It is a schematic bottom view of the movable plate of the present utility model.

[0026] In the figure: 1, workbench; 2, filter plate; 3, liquid outlet; 4, top plate; 5, hydraulic cylinder; 6, transmission column; 7, transmission sleeve; 8, pressing plate; 9, convex ball; 10, spiral chute; 11, return spring; 12, corrugation; 13, fixed sleeve; 14, rotating ring; 15, scroll spring; 16, positioning ring; 17, movable groove; 18, movable plate; 19, arc-shaped convex block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] As Figures 1-7 shown, the present utility model provides a technical solution: a pesticide residue detection sampling device, including a workbench 1, a filter plate 2 is fixedly installed on the top of the workbench 1, a liquid outlet 3 is opened on the inner wall of the bottom of the workbench 1, a top plate 4 is fixedly connected to the outer wall of the top of the workbench 1 through a column, a hydraulic cylinder 5 is fixedly installed on the upper surface of the top plate 4, a juicing mechanism is arranged on the top of the workbench 1, and the juicing mechanism includes a transmission column 6, a transmission sleeve 7, a pressing plate 8, a convex ball 9, a spiral chute 10, a return spring 11, a corrugation 12, a fixed sleeve 13, a rotating ring 14 and a scroll spring 15.

[0028] In an embodiment of the present utility model, a transmission column 6 is fixedly connected to the output end of a hydraulic cylinder 5. A transmission sleeve 7 is sleeved on the arc-shaped outer surface of the transmission column 6. A pressing plate 8 is fixedly installed at the bottom of the transmission sleeve 7. A convex ball 9 is fixedly installed on the arc-shaped outer surface of the transmission column 6. A spiral chute 10 is formed on the inner surface of the transmission sleeve 7. The convex ball 9 is arranged inside the spiral chute 10. A return spring 11 is fixedly connected between the bottom end of the transmission column 6 and the inner wall of the bottom of the transmission sleeve 7. A corrugation 12 is formed on the lower surface of the pressing plate 8. A fixing sleeve 13 is fixedly installed on the upper surface of the filter plate 2. A rotating ring 14 is rotatably installed on the inner surface of the fixing sleeve 13. A scroll spring 15 is fixedly connected between the fixing sleeve 13 and the rotating ring 14.

[0029] Further, a hollow cavity is formed in the inner wall of the workbench 1, and the hollow cavity is adapted to the filter plate 2, so that the fruit and vegetable juice leaking from the filter plate 2 passes through the filter plate 2 and then is discharged outward through the hollow cavity and the liquid outlet 3, facilitating the staff to collect it for agricultural residue detection of fruits and vegetables. In addition, a round hole adapted to the outer diameter of the transmission column 6 is formed inside the transmission sleeve 7, and the transmission column 6 is arranged inside the round hole. At the same time, the pressing plate 8 is circular, and the outer diameter of the pressing plate 8 is adapted to the inner diameter of the rotating ring 14, so that when the pressing plate 8 moves downward under the drive of the hydraulic cylinder 5, it can completely enter the inside of the rotating ring 14. Specifically, the centers of the pressing plate 8 and the rotating ring 14 are arranged on the same vertical line to ensure the cooperation effect between the pressing plate 8 and the rotating ring 14 during the juice extraction process. Further, a plurality of groups of corrugations 12 are provided, and the plurality of groups of corrugations 12 are evenly distributed in a circumferential array on the lower surface of the pressing plate 8. In addition, a limiting ring is arranged on the arc-shaped outer surface of the rotating ring 14, and a rotating groove adapted to the limiting ring is formed on the inner wall of the fixing sleeve 13. Specifically, the limiting ring is arranged inside the rotating groove, and both ends of the scroll spring 15 are fixedly connected to the inner surface of the bottom of the rotating groove and the arc-shaped outer surface of the limiting ring respectively. Thus, when the rotating ring 14 rotates relative to the fixing sleeve 13, the scroll spring 15 gives the rotating ring 14 a reverse rotation tendency to achieve reset. Specifically, when the hydraulic cylinder 5 drives the transmission column 6 to move downward, the transmission sleeve 7 drives the pressing plate 8 to move downward until it is stressed with the fruits and vegetables and the rotating ring 14. Through the guidance and restriction of the spiral chute 10 and the convex ball 9, when the pressing plate 8 presses the fruits and vegetables downward, it will rotate, so that the fruits and vegetables will generate a horizontal torque while being deformed under pressure, prompting the fruits and vegetables to be deformed and broken quickly to produce the internal juice faster, achieving the effect of rapid extraction. And during the process of the fruits and vegetables breaking, the rotating ring 14 is driven to rotate. After the fruits and vegetables are broken, the stress between the pressing plate 8 and the rotating ring 14 is weakened. At this time, under the elastic force of the scroll spring 15, the rotating ring 14 is driven to rotate in the reverse direction, cooperating with the corrugations 12, to achieve the juice extraction effect of repeatedly kneading the fruits and vegetables and improving the extraction efficiency of the fruit and vegetable extract.

[0030] In addition, a positioning ring 16 is fixedly installed on the arc-shaped inner wall of the rotating ring 14. An activity groove 17 is formed in the inner wall of the positioning ring 16. An activity plate 18 is movably arranged on the inner surface of the activity groove 17. An arc-shaped convex block 19 is fixedly installed on the lower surface of the activity plate 18.

[0031] In the embodiment of the present utility model, the number of the activity grooves 17 is set to five groups, and the five groups of activity grooves 17 are evenly distributed in a circumferential array on the inner wall of the positioning ring 16. The area of the activity plate 18 is adapted to the activity groove 17. The activity plate 18 includes an inner diameter end and an outer diameter end. Limiting plates are arranged on the surfaces of both the inner diameter end and the outer diameter end. Specifically, a sliding groove with a thickness greater than that of the limiting plate is arranged on the inner wall of the activity groove 17, so that the activity plate 18 can move in the vertical direction inside the activity groove 17. In addition, the outer diameter of the arc-shaped convex block 19 is smaller than the diameter of the mesh holes formed in the filter plate 2. Therefore, when the rotating ring 14 drives the positioning ring 16 to rotate, due to the limitation of the mesh holes formed in the filter plate 2 on the arc-shaped convex block 19, the activity plate 18 is driven to move in the vertical direction along the inner wall of the activity groove 17, thereby improving the pressing and juicing efficiency of the fruits and vegetables between the positioning ring 16 and the pressing plate 8.

[0032] In the present utility model, during use, the fruits and vegetables to be sampled are placed on the positioning ring 16. At this time, the hydraulic cylinder 5 is started to drive the transmission column 6 to move downward, so that the transmission sleeve 7 drives the pressing plate 8 to move downward until it is stressed with the fruits and vegetables and the rotating ring 14. Through the guidance and limitation of the spiral chute 10 and the convex ball 9, when the pressing plate 8 presses the fruits and vegetables, it will rotate, and thus the fruits and vegetables will generate a horizontal torque while being compressed and deformed, prompting the fruits and vegetables to be quickly deformed and broken, so as to produce the internal juice faster and achieve the effect of rapid extraction. And during the process of the fruits and vegetables breaking, the rotating ring 14 is driven to rotate. After the fruits and vegetables are broken, the stress between the pressing plate 8 and the rotating ring 14 is weakened. At this time, under the elastic force of the scroll spring 15, the rotating ring 14 is driven to rotate in the reverse direction, and in cooperation with the corrugations 12, a juicing effect of repeatedly kneading the fruits and vegetables is achieved, improving the extraction efficiency of the fruit and vegetable extract, and thus facilitating the subsequent development of the work of detecting the pesticide residues in the fruits and vegetables.

[0033] The above text generally describes the present utility model in detail. However, based on the present utility model, some modifications or improvements can be made, which are obvious to those of ordinary skill in the technical field. Therefore, the modifications or improvements made without departing from the spirit of the present utility model are all within the protection scope of the present utility model.

Claims

1. A pesticide residue detection sampling device, comprising a workbench (1), a filter plate (2) is fixedly mounted on the top of the workbench (1), a liquid outlet (3) is provided on the bottom inner wall of the workbench (1), a top plate (4) is fixedly connected to the top outer wall of the workbench (1) via a column, a hydraulic cylinder (5) is fixedly mounted on the upper surface of the top plate (4), and is characterized in that: A juice extraction mechanism is provided on the top of the workbench (1), and the juice extraction mechanism comprises: A transmission column (6), wherein the output end of the hydraulic cylinder (5) is fixedly connected to the transmission column (6), a transmission sleeve (7) is sleeved on the arc-shaped outer surface of the transmission column (6), and a pressure plate (8) is fixedly installed on the bottom of the transmission sleeve (7); A convex ball (9), a convex ball (9) is fixedly mounted on the arc-shaped outer surface of the transmission column (6), a spiral chute (10) is provided on the inner surface of the transmission sleeve (7), the convex ball (9) is arranged inside the spiral chute (10), a return spring (11) is fixedly connected between the bottom end of the transmission column (6) and the bottom inner wall of the transmission sleeve (7), and a wave pattern (12) is provided on the lower surface of the pressure plate (8); A fixed sleeve (13), the upper surface of the filter plate (2) is fixedly mounted with the fixed sleeve (13), the inner surface of the fixed sleeve (13) is rotatably mounted with a rotating ring (14), and a spiral spring (15) is fixedly connected between the fixed sleeve (13) and the rotating ring (14).

2. The pesticide residue detection sampling device according to claim 1, characterized in that: The pressing plate (8) is arranged in a circular shape, and the outer diameter of the pressing plate (8) is matched with the inner diameter of the rotating ring (14), and the centers of the pressing plate (8) and the rotating ring (14) are arranged on the same vertical line.

3. The pesticide residue detection sampling device according to claim 1, characterized in that: The number of the wave patterns (12) is arranged in a plurality of groups, and the plurality of groups of wave patterns (12) are evenly distributed on the lower surface of the pressing plate (8) in a circular array.

4. The pesticide residue detection sampling device according to claim 1, characterized in that: A limiting ring is arranged on the arc-shaped outer surface of the rotating ring (14), and a rotating groove matching the limiting ring is opened on the inner wall of the fixing sleeve (13), and the limiting ring is arranged inside the rotating groove.

5. The pesticide residue detection sampling device according to claim 1, characterized in that: A positioning ring (16) is fixedly mounted on the arc-shaped inner wall of the rotating ring (14); a movable groove (17) is provided on the inner wall of the positioning ring (16); a movable plate (18) is movably arranged on the inner surface of the movable groove (17); and an arc-shaped protrusion (19) is fixedly mounted on the lower surface of the movable plate (18).

6. The pesticide residue detection sampling device according to claim 5, characterized in that: The movable plate (18) comprises an inner diameter end and an outer diameter end, and both the inner diameter end and the outer diameter end are provided with limiting plates. The inner wall of the movable groove (17) is provided with a sliding groove having a thickness greater than that of the limiting plate.

7. The pesticide residue detection sampling device according to claim 5, characterized in that: The outer diameter of the arc-shaped protrusion (19) is smaller than the diameter of the mesh openings on the filter plate (2).

Images