Fruit and vegetable pesticide residue detection pretreatment device

Abstract

The utility model relates to the technical field of pesticide residue detection, in particular to a fruit and vegetable pesticide residue detection pretreatment device which comprises a first rectangular block and a second rectangular block, the first rectangular block is connected to the X-direction inner wall of a pretreatment box, and the second rectangular block is connected to the X-reverse inner wall of the pretreatment box. The first rectangular block is located on the Y-direction reverse side of the first cutting knife, the second rectangular block is located on the Y-direction reverse side of the second cutting knife, the first rectangular block is in clearance fit with the first cutting knife face, and the second rectangular block is in clearance fit with the second cutting knife blade, so that the first cutting knife rotates clockwise; the fruit and vegetable slices adhered to the first cutting knife are blocked and fall by the first rectangular block, the second cutting knife rotates anticlockwise, and the fruit and vegetable slices adhered to the second cutting knife are blocked and fall by the second rectangular block, so that the fruit and vegetable pesticide residue detection result is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of pesticide residue detection, in particular to a pretreatment device for detecting pesticide residues in fruits and vegetables. Background Art

[0002] With the increasing attention of people to food safety, the problem of pesticide residues in fruits and vegetables has become the focus of public concern. A Chinese patent with the authorization announcement number CN214122170U discloses a pretreatment device for detecting pesticide residues in fruits and vegetables. Specifically, it includes an operation table, on the top of which a slicing box and a treatment box are installed. A rotating rod is rotatably installed between the two inner side walls of the slicing box. The two rotating rods are respectively fixedly sleeved with uniformly distributed first blades and second blades. The first blades and the second blades are circular and arranged in a staggered manner. This patent can cut fruits and vegetables into uniform slices well, which is convenient for subsequent extraction of fruit and vegetable juice to detect the pesticide residues in the fruit and vegetable juice. However, because the first blades and the second blades of this patent are arranged in a staggered manner, the sliced fruits and vegetables are easy to stick to the first blades and the second blades, which will affect the subsequent detection of pesticide residues in the fruit and vegetable juice, resulting in deviation of the results. Therefore, there is an urgent need for a pretreatment device for detecting pesticide residues in fruits and vegetables that can prevent the sliced fruits and vegetables from sticking to the blades after cutting, so as to ensure the detection results of pesticide residues. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a pretreatment device for detecting pesticide residues in fruits and vegetables that can prevent the sliced fruits and vegetables from sticking to the blades after cutting, so as to ensure the detection results of pesticide residues.

[0004] To solve the above technical problem, the technical solution adopted by the utility model is: a pretreatment device for detecting pesticide residues in fruits and vegetables, including:

[0005] A pretreatment box, inside which a partition is provided. The partition divides the pretreatment box into a first chamber and a second chamber. A first opening is provided on the partition. An inlet is provided at the upper part of the first chamber, and an outlet pipe is provided on the lower side wall of the second chamber;

[0006] Cutting device, the cutting device includes a first rotating shaft, a first cutting knife, a second rotating shaft and a second cutting knife. The first rotating shaft is rotatably connected to the first chamber, the second rotating shaft is rotatably connected to the first chamber. The first rotating shaft and the second rotating shaft are parallel. The first rotating shaft is fixedly sleeved with uniformly distributed first cutting knives, and the second rotating shaft is fixedly sleeved with uniformly distributed second cutting knives. The feed inlet is located between the first cutting knife and the second cutting knife. The shapes of the first cutting knife and the second cutting knife are circular, and the first cutting knife and the second cutting knife are arranged staggeredly. The X-direction side wall of the first chamber is provided with a plurality of first rectangular blocks arranged along the Y-direction. Each first rectangular block is located on the Y-direction reverse side of the first cutting knife, and the first rectangular block is in clearance fit with the knife face of the first cutting knife. The X-direction reverse side wall of the second chamber is provided with a plurality of second rectangular blocks arranged along the Y-direction for discharging materials. Each second rectangular block is located on the Y-direction reverse side of the second cutting knife, and the second rectangular block is in clearance fit with the knife face of the second cutting knife;

[0007] First driving motor, the first driving motor is connected to the Y-direction side wall of the pretreatment box, and the first driving motor is in transmission connection with the first rotating shaft;

[0008] Second driving motor, the second driving motor is connected to the Y-direction side wall of the pretreatment box, and the second driving motor is in transmission connection with the second rotating shaft. The rotation direction of the second driving motor is opposite to that of the first driving motor;

[0009] Sloping plate, the sloping plate is connected to the first chamber, the sloping plate is located below the cutting device, and the bottom end of the sloping plate is connected to the first opening;

[0010] Pushing plate, the pushing plate is movably connected to the X-direction side wall of the first chamber along the direction of the sloping plate, and the lower end of the pushing plate contacts the upper surface of the sloping plate;

[0011] First driving member, the first driving member is used to move the pushing plate;

[0012] First filter screen, the first filter screen is detachably connected to the second chamber, the first filter screen is located below the first opening and above the discharge pipeline;

[0013] Pressing plate, the pressing plate is movably connected to the second chamber in the vertical direction, and the pressing plate is located above the first filter screen;

[0014] Second driving member, the second driving member is used to drive the pressing plate to move.

[0015] Furthermore, a valve is provided on the discharge pipeline, and a second filter screen is provided in the discharge pipeline.

[0016] Furthermore, the first driving member is a first air cylinder. A support frame is provided on the X-direction side wall of the pretreatment box. The cylinder body of the first air cylinder is connected to the support frame. The axial direction of the cylinder body of the first air cylinder is parallel to the sloping plate. The piston rod of the first air cylinder extends into the first chamber, and the pushing plate is connected to the piston rod of the first air cylinder.

[0017] Further, the pretreatment device for detecting pesticide residues in fruits and vegetables further includes a conveyor, which is located above the pretreatment box, and the end of the conveyor is directly above the feed inlet.

[0018] Further, a second opening is provided on the X-direction reverse side wall of the second chamber, and chutes are provided on the Y-direction and Y-direction reverse side walls of the second chamber. The shape of the first filter is matched with the second opening, and sliders matched with the chutes are provided on the first filter.

[0019] Further, a transparent observation window is provided on the outer wall of the second chamber in the reverse Y direction.

[0020] Further, the second driving member is a second air cylinder. The cylinder block of the second air cylinder is connected to the upper part of the outer wall of the second chamber, the axial direction of the cylinder block of the second air cylinder is in the vertical direction, the piston rod of the second air cylinder extends into the second chamber, and the pressing plate is connected to the piston rod of the second air cylinder.

[0021] The beneficial effect of the present utility model is that: compared with the prior art, it can avoid the sliced fruits and vegetables sticking to the blade after cutting, thus ensuring the detection result of pesticide residues. Description of the Drawings

[0022] Figure 1 is a schematic structural diagram of a pretreatment device for detecting pesticide residues in fruits and vegetables according to a specific embodiment of the present utility model;

[0023] Figure 2 is a sectional view of the internal structure of the cutting device of a pretreatment device for detecting pesticide residues in fruits and vegetables according to a specific embodiment of the present utility model;

[0024] Figure 3 is a top view of a pretreatment device for detecting pesticide residues in fruits and vegetables according to a specific embodiment of the present utility model;

[0025] Figure 4 is Figure 3 the sectional view in the A direction of

[0026] Label Description

[0027] 1. Pretreatment box; 11. Partition board; 111. First opening; 12. First chamber; 121. Feed inlet; 13. Second chamber; 131. Discharge pipeline; 132. Observation window; 1311. Valve; 1312. Second filter; 133. Second opening; 134. Chute;

[0028] 2. Cutting device; 21. First rotating shaft; 211. First cutting knife; 22. Second rotating shaft; 221. Second cutting knife;

[0029] 3. First rectangular block;

[0030] 4. Second rectangular block;

[0031] 5. First driving motor;

[0032] 6. Second driving motor;

[0033] 7. Inclined plate;

[0034] 8. Pushing plate;

[0035] 9. First driving member;

[0036] 10. First filter screen; 1011. Slide block;

[0037] 101. Pressing plate;

[0038] 102. Second driving member;

[0039] 103. Conveyor. Specific implementation manner

[0040] To describe in detail the technical content, achieved purpose and effects of the present utility model, the following is described in conjunction with the implementation manners and with reference to the drawings.

[0041] Please refer to Figures 1 to 4 , a pre-treatment device for detecting pesticide residues in fruits and vegetables, comprising:

[0042] A pre-treatment box 1, inside which there is a partition 11. The partition 11 divides the pre-treatment box 1 into a first chamber 12 and a second chamber 13. The partition 11 is provided with a first opening 111. The upper part of the first chamber 12 is provided with a feed inlet 121, and the lower side wall of the second chamber 13 is provided with a discharge pipeline 131;

[0043] Cutting device 2, the cutting device 2 includes a first rotating shaft 21, a first cutting knife 211, a second rotating shaft 22 and a second cutting knife 221. The first rotating shaft 21 is rotatably connected in the first chamber 12, the second rotating shaft 22 is rotatably connected in the first chamber 12, the first rotating shaft 21 and the second rotating shaft 22 are parallel, the first rotating shaft 21 is fixedly sleeved with uniformly distributed first cutting knives 211, the second rotating shaft 22 is fixedly sleeved with uniformly distributed second cutting knives 221, the feed inlet 121 is located between the first cutting knife 211 and the second cutting knife 221, the shapes of the first cutting knife 211 and the second cutting knife 221 are circular, the first cutting knife 211 and the second cutting knife 221 are arranged staggeredly, the X-direction side wall of the first chamber 12 is provided with a plurality of first rectangular blocks 3 arranged along the Y-direction, each first rectangular block 3 is located on the Y-direction reverse side of the first cutting knife 211, the first rectangular block 3 is in clearance fit with the knife surface of the first cutting knife 211, the X-direction reverse side wall of the second chamber 13 is provided with a plurality of second rectangular blocks 4 for discharging along the Y-direction, each second rectangular block 4 is located on the Y-direction reverse side of the second cutting knife 221, and the second rectangular block 4 is in clearance fit with the knife surface of the second cutting knife 221;

[0044] First driving motor 5, the first driving motor 5 is connected to the Y-direction side wall of the pretreatment box 1, and the first driving motor 5 is in transmission connection with the first rotating shaft 21;

[0045] Second driving motor 6, the second driving motor 6 is connected to the Y-direction side wall of the pretreatment box 1, the second driving motor 6 is in transmission connection with the second rotating shaft 22, and the rotation direction of the second driving motor 6 is opposite to that of the first driving motor 5;

[0046] Inclined plate 7, the inclined plate 7 is connected in the first chamber 12, the inclined plate 7 is located below the cutting device 2, and the bottom end of the inclined plate 7 is connected to the first opening 111;

[0047] Pushing plate 8, the pushing plate 8 is movably connected to the X-direction side wall of the first chamber 12 along the inclined plate 7 direction, and the lower end of the pushing plate 8 is in contact with the upper surface of the inclined plate 7;

[0048] First driving member 9, the first driving member 9 is used to move the pushing plate 8;

[0049] First filter screen 10, the first filter screen 10 is detachably connected in the second chamber 13, the first filter screen 10 is located below the first opening 111, and the first filter screen 10 is located above the discharge pipe 131;

[0050] Pressing plate 101, the pressing plate 101 is vertically movably connected in the second chamber 13, and the pressing plate 101 is located above the first filter screen 10;

[0051] Second driving member 102, the second driving member 102 is used to drive the pressing plate 101 to move.

[0052] In the above embodiment, fruits and vegetables are placed into the feeding port 121, and the fruits and vegetables are sliced by the first cutting knife 211 and the second cutting knife 221. Since there is moisture on the fruit and vegetable slices, when the first cutting knife 211 rotates clockwise, the fruit and vegetable slices adhered to the first cutting knife 211 are blocked by the lower edge of the first rectangular block 3 and fall onto the inclined plate 7. The second cutting knife 221 rotates counterclockwise, and the fruit and vegetable slices adhered to the second cutting knife 221 are blocked by the lower edge of the second rectangular block 4 and fall under the inclined plate 7. Thus, it is possible to prevent the fruit and vegetable slices from adhering to the cutting device 2, and further ensure the detection result of the pesticide residue on the fruits and vegetables. Since there is moisture on the fruit and vegetable slices, it is not easy to slide off when adhered to the inclined plate 7. At this time, the first driving member 9 drives the push plate 8 to push the fruit and vegetable slices adhered to the inclined plate 7 to the first opening 111 and fall onto the first filter screen 10, further ensuring the detection result of the pesticide residue on the fruits and vegetables. Then, the second driving member 102 drives the pressing plate 101 to move downward to squeeze the fruits and vegetables on the first filter screen 10, and the juice falls below the first filter screen 10 and is discharged from the discharge pipeline 131.

[0053] As an alternative embodiment, a valve 1311 is provided on the discharge pipeline 131, and a second filter screen 1312 is provided inside the discharge pipeline 131.

[0054] In the above embodiment, when the valve 1311 is opened, the juice falling onto the first filter screen 10 enters the discharge pipeline 131, and the second filter screen 1312 blocks the filter residue in the juice, thereby obtaining juice without filter residue, further ensuring the detection result of the pesticide residue on the fruits and vegetables.

[0055] As an alternative embodiment, the first driving member 9 is a first air cylinder. A support frame is provided on the X-direction side wall of the pretreatment box 1. The cylinder body of the first air cylinder is connected to the support frame. The axial direction of the cylinder body of the first air cylinder is parallel to the inclined plate 7, and the piston rod of the first air cylinder extends into the first cavity, and the push plate 8 is connected to the piston rod of the first air cylinder.

[0056] In the above embodiment, by the telescopic movement of the piston rod of the first air cylinder, the push plate 8 can move along the inclined plate 7, and further push the fruit and vegetable slices adhered to the inclined plate 7 onto the first filter screen 10.

[0057] As an alternative embodiment, the fruit and vegetable pesticide residue detection pretreatment device further includes a conveyor 103. The conveyor 103 is located above the pretreatment box 1, and the end of the conveyor is directly above the feeding port 121.

[0058] In the above embodiment, the fruits and vegetables to be cut are placed into the conveyor 103, and the conveyor 103 conveys the fruits and vegetables to the feeding port 121 and falls into the first chamber 12 for cutting.

[0059] As an alternative embodiment, a second opening 133 is provided on the X-direction reverse side wall of the second chamber 13, and chutes 134 are provided on the Y-direction and Y-direction reverse side walls of the second chamber 13. The shape of the first filter net 10 matches that of the second opening 133, and sliders 1011 matching the chutes 134 are provided on the first filter net.

[0060] In the above embodiments, through the cooperation of the chutes 134 and the sliders 1011, the first filter net 10 is detachably connected to the second chamber 13, so that the first filter net 10 can be cleaned and replaced, further ensuring the detection result of the pesticide residue on fruits and vegetables.

[0061] As an alternative embodiment, a transparent observation window 132 is provided on the Y-direction reverse outer wall of the second chamber 13.

[0062] In the above embodiments, through the observation window 132, the first filter net 10 can be observed, and thus the first filter net 10 can be replaced and cleaned.

[0063] As an alternative embodiment, the second driving member is a second cylinder. The cylinder body of the second cylinder is connected to the upper part of the outer wall of the second chamber 13. The axial direction of the cylinder body of the second cylinder is the vertical direction. The piston rod of the second cylinder extends into the second chamber 13, and the pressing plate 101 is connected to the piston rod of the second cylinder.

[0064] In the above embodiments, through the telescoping of the second cylinder, the pressing plate 101 can move up and down, and then the fruit and vegetable slices on the first filter net 10 are squeezed by the pressing plate 101.

[0065] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in the related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A pretreatment device for detecting pesticide residues in fruits and vegetables, characterized in that, Comprising: A pretreatment box, inside which there is a partition board. The partition board divides the pretreatment box into a first chamber and a second chamber. There is a first opening on the partition board. An inlet is provided at the upper part of the first chamber, and a discharge pipe is provided on the lower side wall of the second chamber; A cutting device, which includes a first rotating shaft, a first cutting knife, a second rotating shaft and a second cutting knife. The first rotating shaft is rotatably connected in the first chamber, and the second rotating shaft is rotatably connected in the first chamber. The first rotating shaft and the second rotating shaft are parallel. The first rotating shaft is fixedly sleeved with uniformly distributed first cutting knives, and the second rotating shaft is fixedly sleeved with uniformly distributed second cutting knives. The inlet is located between the first cutting knife and the second cutting knife. The shapes of the first cutting knife and the second cutting knife are circular, and the first cutting knife and the second cutting knife are arranged staggeredly. There are several first rectangular blocks arranged along the Y direction on the X-direction side wall of the first chamber. Each first rectangular block is located on the reverse side of the first cutting knife in the Y direction, and the first rectangular block is in clearance fit with the cutting surface of the first cutting knife. There are several second rectangular blocks arranged along the Y direction on the reverse side of the X direction of the second chamber. Each second rectangular block is located on the reverse side of the second cutting knife in the Y direction, and the second rectangular block is in clearance fit with the cutting surface of the second cutting knife; A first driving motor, which is connected to the Y-direction side wall of the pretreatment box, and the first driving motor is in transmission connection with the first rotating shaft; A second driving motor, which is connected to the Y-direction side wall of the pretreatment box, and the second driving motor is in transmission connection with the second rotating shaft. The rotation direction of the second driving motor is opposite to that of the first driving motor; An inclined plate, which is connected in the first chamber. The inclined plate is located below the cutting device, and the bottom end of the inclined plate is connected to the first opening; A push plate, which is movably connected to the X-direction side wall of the first chamber along the direction of the inclined plate. The lower end of the push plate is in contact with the upper surface of the inclined plate; A first driving member, which is used to move the push plate; A first filter screen, which is detachably connected in the second chamber. The first filter screen is located below the first opening and above the discharge pipe; A pressing plate, which is vertically movably connected in the second chamber. The pressing plate is located above the first filter screen; A second driving member, which is used to drive the pressing plate to move.

2. The pre-treatment device for detecting pesticide residues in fruits and vegetables according to claim 1, characterized in that, There is a valve on the discharge pipe, and a second filter screen is provided in the discharge pipe.

3. The pretreatment device for detecting pesticide residues in fruits and vegetables according to claim 1, characterized in that, The first driving member is a first air cylinder. There is a support frame on the X-direction side wall of the pretreatment box. The cylinder body of the first air cylinder is connected to the support frame. The axial direction of the cylinder body of the first air cylinder is parallel to the inclined plate. The piston rod of the first air cylinder extends into the first chamber, and the push plate is connected to the piston rod of the first air cylinder.

4. The pre-treatment device for detecting pesticide residues in fruits and vegetables according to claim 1, characterized in that, The pretreatment device for detecting the pesticide residues on fruits and vegetables further includes a conveyor, which is located above the pretreatment box, and the end of the conveyor is directly above the inlet.

5. The pretreatment device for detecting pesticide residues in fruits and vegetables according to claim 1, wherein, There is a second opening on the reverse side of the X direction of the second chamber. There are chutes on the Y-direction and reverse-Y-direction side walls of the second chamber. The shape of the first filter screen matches that of the second opening, and there are sliding blocks on the first filter screen that match the chutes.

6. The pre-treatment device for detecting pesticide residues in fruits and vegetables according to claim 1, characterized in that, There is a transparent observation window on the reverse-Y-direction outer wall of the second chamber.

7. The pretreatment device for detecting pesticide residues in fruits and vegetables according to claim 1, characterized in that, The second driving member is a second cylinder. The cylinder block of the second cylinder is connected to the upper part of the outer wall of the second chamber. The axial direction of the cylinder block of the second cylinder is the vertical direction. The piston rod of the second cylinder extends into the second chamber, and the pressing plate is connected to the piston rod of the second cylinder.

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