Sample pretreatment device for food pesticide residue detection

Abstract

The utility model discloses a sample pretreatment device for food pesticide residue detection, which comprises a device main body, a grinding plate is fixed in the device main body, round holes are formed in the grinding plate at equal intervals, a grinding disc is rotatably mounted at the center position of the top end of the grinding plate, and the grinding disc is rotatably mounted on the device main body. A material receiving box is arranged in the device main body below the grinding plate; the material vibrating mechanism is arranged on the outer wall of one side of the device body and comprises a material vibrating machine box, a third rotary driving part, a convex rod, a movable arm and a material vibrating plate, the material vibrating machine box is fixed to the outer wall of one side of the device body, and the third rotary driving part is installed in the material vibrating machine box. The movable arm is arranged above the third rotary driving piece, the protruding rod is fixed to the output end of the third rotary driving piece, and the material vibrating plates are fixed to the two ends of the movable arm. The discharging device is more thorough in discharging, free of residues and not prone to polluting follow-up samples.

Description

Technical Field

[0001] The utility model relates to the technical field of food detection, in particular to a sample pretreatment device for food pesticide residue detection. Background Art

[0002] Food is the most important thing for people, and food safety is the most important thing. Food safety concerns thousands of households. Pesticide residues in vegetables will greatly affect the quality of people's diet and cause harm to people's health. Testing pesticide residues in vegetables can determine the amount of pesticide residues in vegetables and prevent harm to the human body after consumption. Food pesticide residue testing ensures that agricultural products are safe on the table.

[0003] When testing for pesticide residues in food, samples need to be pretreated. Usually, the samples need to be ground and pulverized before the sample powder is extracted for testing. However, when the samples are ground, the sample powder easily adheres to the inner wall of the device and is difficult to completely discharge. The sample residue inside the device easily contaminates subsequent samples, so improvement is urgently needed. Utility Model Content

[0004] The utility model aims to provide a sample pretreatment device for detecting pesticide residues in food, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a sample pretreatment device for detecting pesticide residues in food, comprising:

[0006] The device body has a grinding plate fixed inside the device body, and the grinding plate is provided with circular holes at equal intervals inside, a grinding disc is rotatably installed at the center position of the top of the grinding plate, a second rotating driving member is installed at the center position of the bottom of the grinding plate, the output end of the second rotating driving member passes through the grinding plate and is fixedly connected to the bottom end of the grinding disc, a material receiving box is provided inside the device body below the grinding plate, and a cover body is installed at the top of the device body;

[0007] A vibration material mechanism, wherein the vibration material mechanism is arranged on the outer wall of one side of the device body, the vibration material mechanism comprises a vibration material chassis, a third rotating driving member, a convex rod, a movable arm, and a vibration material plate. The vibration material chassis is fixed on the outer wall of one side of the device body, the third rotating driving member is installed inside the vibration material chassis, the movable arm is arranged above the third rotating driving member, both ends of the movable arm pass through the vibration material chassis and extend to both sides of the device body, the convex rod is fixed at the output end of the third rotating driving member, the convex rod passes through the movable arm, and the vibration material plates are fixed at both ends of the movable arm.

[0008] Preferably, a rotating rod is installed at the center position of the bottom end of the cover body, and blades are fixed on the outer wall of the rotating rod to facilitate chopping the sample.

[0009] Preferably, a first rotary driving member is installed at the center of the top of the cover body, and the output end of the first rotary driving member passes through the cover body and is fixedly connected to the top of the rotating rod for driving the rotating rod.

[0010] Preferably, sampling spoons are provided on both sides of the interior of the material receiving box to facilitate the extraction of sample powder.

[0011] Preferably, the material vibrating mechanism further comprises guide wheels, which are installed inside the material vibrating machine case on both sides of the movable arm, and the guide wheels fit tightly with the movable arm to facilitate guiding the movable arm.

[0012] Preferably, a clamping block is fixed on the outer wall of the top of the sampling spoon, and the clamping block is clamped with the material receiving box to facilitate positioning of the sampling spoon.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the sample pretreatment device for detecting pesticide residues in food discharges materials more thoroughly, without residue, and is not easy to contaminate subsequent samples;

[0014] A vibration material chassis, a third rotating drive component, a convex rod, a movable arm, a guide wheel, and a vibration material plate are provided. The third rotating drive component inside the vibration material chassis drives the convex rod to rotate. During the rotation of the convex rod, the convex rod drives the movable arm to reciprocate under the guidance of the guide wheel. The guide wheel drives the vibration material plate to move left and right and continuously knocks on the outer wall of the device body. Under the action of the vibration force, the sample powder remaining in the device body is vibrated down, so that the discharge is more thorough and without residue, and it is not easy to contaminate subsequent samples. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0016] Figure 2 For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0017] Figure 3 It is a schematic diagram of an enlarged cross-sectional top view of the vibrating material mechanism of the utility model;

[0018] Figure 4 It is an enlarged structural schematic diagram of the material receiving box of the present utility model.

[0019] In the figure: 1. device body; 2. grinding plate; 3. round hole; 4. grinding disc; 5. cover; 6. first rotating drive member; 7. rotating rod; 8. blade; 9. second rotating drive member; 10. material receiving box; 11. material vibrating mechanism; 1101. material vibrating chassis; 1102. third rotating drive member; 1103. protruding rod; 1104. movable arm; 1105. guide wheel; 1106. material vibrating plate; 12. sampling spoon; 13. card block. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. All other embodiments obtained by ordinary technicians in the field without creative work based on the embodiments of the utility model shall fall within the scope of protection of the utility model.

[0022] See also Figure 1-4 The utility model provides an embodiment: a sample pretreatment device for detecting pesticide residues in food, comprising:

[0023] The device body 1 has a grinding plate 2 fixed inside the device body 1, and the grinding plate 2 is provided with circular holes 3 at equal intervals inside. A grinding disc 4 is rotatably installed at the center position of the top of the grinding plate 2, and a second rotating driving member 9 is installed at the center position of the bottom of the grinding plate 2. The output end of the second rotating driving member 9 passes through the grinding plate 2 and is fixedly connected to the bottom end of the grinding disc 4. A material receiving box 10 is provided inside the device body 1 below the grinding plate 2, and a cover body 5 is installed at the top of the device body 1;

[0024] A vibrating material mechanism 11, which is arranged on the outer wall of one side of the device body 1, and includes a vibrating material chassis 1101, a third rotating driving member 1102, a protruding rod 1103, a movable arm 1104, and a vibrating material plate 1106. The vibrating material chassis 1101 is fixed on the outer wall of one side of the device body 1, the third rotating driving member 1102 is installed inside the vibrating material chassis 1101, the movable arm 1104 is arranged above the third rotating driving member 1102, both ends of the movable arm 1104 penetrate the vibrating material chassis 1101 and extend to both sides of the device body 1, the protruding rod 1103 is fixed to the output end of the third rotating driving member 1102, the protruding rod 1103 penetrates the movable arm 1104, and the vibrating material plates 1106 are fixed to both ends of the movable arm 1104;

[0025] The third rotating driving member 1102 inside the vibrating material box 1101 drives the convex rod 1103 to rotate. During the rotation of the convex rod 1103, the convex rod 1103 drives the movable arm 1104 to reciprocate under the guidance of the guide wheel 1105. The guide wheel 1105 drives the vibrating material plate 1106 to move left and right and continuously knock the outer wall of the device body 1. Under the action of the vibration force, the sample powder remaining inside the device body 1 is vibrated off, so that the discharge is more thorough and no residue is left, which is not easy to contaminate subsequent samples.

[0026] A rotating rod 7 is installed at the center of the bottom end of the cover 5, and a blade 8 is fixed on the outer wall of the rotating rod 7 to facilitate cutting the sample;

[0027] A first rotary drive member 6 is installed at the center of the top of the cover body 5, and the output end of the first rotary drive member 6 passes through the cover body 5 and is fixedly connected to the top of the rotating rod 7 for driving the rotating rod 7;

[0028] Sampling spoons 12 are provided on both sides of the inside of the material receiving box 10 to facilitate the extraction of sample powder;

[0029] The vibrating mechanism 11 further includes guide wheels 1105, which are installed inside the vibrating case 1101 on both sides of the movable arm 1104. The guide wheels 1105 fit tightly with the movable arm 1104 to facilitate guiding the movable arm 1104.

[0030] A clamping block 13 is fixed on the outer wall of the top of the sampling spoon 12 , and the clamping block 13 is clamped with the material receiving box 10 to facilitate positioning of the sampling spoon 12 .

[0031] When the embodiment of the present application is in use: first, open the cover 5, put the sample into the device body 1, and then buckle the cover 5 on the device body 1. Secondly, start the first rotary drive member 6 to drive the rotating rod 7 to rotate, and the rotating rod 7 drives the blade 8 to rotate to cut the sample into pieces. The crushed sample falls into the gap between the grinding disc 4 and the device body 1. At this time, the second rotary drive member 9 drives the grinding disc 4 to rotate, and the grinding disc 4 grinds the sample to crush it into powder. This design makes the sample grinding more delicate and the grinding effect is good. Then, the sample powder passes through the circular hole 3 inside the grinding plate 2 and falls into the material receiving box 10 to complete the sample grinding work. In this process, the material is vibrated. The third rotating driving member 1102 inside the chassis 1101 drives the convex rod 1103 to rotate. During the rotation of the convex rod 1103, the convex rod 1103 drives the movable arm 1104 to reciprocate under the guidance of the guide wheel 1105. The guide wheel 1105 drives the vibration plate 1106 to move left and right and continuously knock on the outer wall of the device body 1. Under the action of the vibration force, the sample powder remaining in the device body 1 is vibrated down, so that the discharge is more thorough and without residue, and it is not easy to contaminate subsequent samples. Then, the material receiving box 10 is taken out from the inside of the device body 1, and the upper extraction spoon 12 can take out a certain amount of sample powder, thereby improving the convenience of sampling.

[0032] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

Claims

1. A sample pretreatment device for detecting pesticide residues in food, It is characterized in that include: A device body (1), wherein a grinding plate (2) is fixed inside the device body (1), and the inside of the grinding plate (2) is provided with circular holes (3) at equal intervals, a grinding disc (4) is rotatably mounted at the center position of the top end of the grinding plate (2), a second rotating driving member (9) is mounted at the center position of the bottom end of the grinding plate (2), the output end of the second rotating driving member (9) passes through the grinding plate (2) and is fixedly connected to the bottom end of the grinding disc (4), a material receiving box (10) is arranged inside the device body (1) below the grinding plate (2), and a cover body (5) is mounted at the top end of the device body (1); A material vibrating mechanism (11), the material vibrating mechanism (11) being arranged on an outer wall of one side of a device body (1), the material vibrating mechanism (11) comprising a material vibrating machine case (1101), a third rotating driving member (1102), a protruding rod (1103), a movable arm (1104), and a material vibrating plate (1106), the material vibrating machine case (1101) being fixed on an outer wall of one side of a device body (1), the third rotating driving member (1102) being installed inside the material vibrating machine case (1101), The movable arm (1104) is arranged above the third rotating driving member (1102), and both ends of the movable arm (1104) penetrate the vibration material box (1101) and extend to both sides of the device body (1), the protruding rod (1103) is fixed to the output end of the third rotating driving member (1102), and the protruding rod (1103) penetrates the movable arm (1104), and the vibration material plate (1106) is fixed to both ends of the movable arm (1104) to facilitate knocking the outer wall of the device body (1).

2. A sample pretreatment device for detecting pesticide residues in food according to claim 1, Features: A rotating rod (7) is installed at the center position of the bottom end of the cover body (5), and a blade (8) is fixed on the outer wall of the rotating rod (7).

3. A sample pretreatment device for detecting pesticide residues in food according to claim 2, Features: A first rotating driving member (6) is installed at the center position of the top end of the cover body (5), and the output end of the first rotating driving member (6) passes through the cover body (5) and is fixedly connected to the top end of the rotating rod (7).

4. A sample pretreatment device for detecting pesticide residues in food according to claim 1, Features: Sampling spoons (12) are provided on both sides of the interior of the material receiving box (10).

5. A sample pretreatment device for detecting pesticide residues in food according to claim 1, Features: The material vibrating mechanism (11) further comprises guide wheels (1105), and the guide wheels (1105) are installed inside the material vibrating machine case (1101) on both sides of the movable arm (1104), and the guide wheels (1105) are tightly fitted with the movable arm (1104).

6. A sample pretreatment device for detecting pesticide residues in food according to claim 4, Features: A clamping block (13) is fixed on the outer wall of the top of the sampling spoon (12), and the clamping block (13) is clamped with the material receiving box (10).

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