A vegetable pesticide residue detection device

Abstract

The utility model discloses a kind of vegetable agricultural residue detection equipment, it is related to the technical field of agricultural residue detection, to solve when vegetables are batched, the staff needs to frequently replace agricultural residue test paper to detect vegetables, and the detection process is more cumbersome Problem.Its technical scheme points are: including the test paper of winding arrangement, further including the shell and the cover body of mutual rotation connection, the fixed rod for test paper placement is fixedly connected in shell inner wall, shell inner wall is rotatably connected with the two connecting rods for winding test paper and for conveying test paper Winding rod, the through slot for dropping extract liquid on test paper is set on the cover body.The utility model can realize the effect of automatic winding of test paper by motor driving winding rod, test paper located in through slot moves to winding rod direction at this time, to realize the effect of automatic replacement test paper, reduce the operation step of staff, improve detection efficiency.

Description

Technical Field

[0001] This utility model relates to the field of pesticide residue detection technology, and more specifically, to a pesticide residue detection device for vegetables. Background Technology

[0002] Vegetables are an important food source in daily life. To ensure the safety of vegetables, pesticide residue testing equipment is usually used to conduct random inspections. This equipment can quickly determine whether vegetables contain pesticide residues, thus improving the safety of vegetables.

[0003] Current pesticide residue testing equipment typically involves cutting vegetables into small pieces, placing them in test tubes, adding buffer solution, and then using vibration to thoroughly mix the two to form an extract. A pesticide residue test strip of appropriate size is then cut, and the extract is dripped onto the test strip. By observing the color change of the test strip, it is possible to determine whether pesticide residues are present in the vegetables.

[0004] However, most pesticide residue test strips are disposable and cannot be reused after testing. When conducting batch testing on vegetables, staff need to frequently change the pesticide residue test strips to test the vegetables, making the testing process quite cumbersome.

[0005] Therefore, a new pesticide residue detection device is needed to solve this problem. Utility Model Content

[0006] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a vegetable pesticide residue testing device, which solves the problem that when vegetables are tested in batches, staff need to frequently change pesticide residue test strips, making the testing process cumbersome.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a vegetable pesticide residue detection device, including test paper wound up, and a shell and a cover rotatably connected to each other. A fixing rod for placing the test paper is fixedly connected to the inner wall of the shell. A winding rod for winding the test paper and two connecting rods for conveying the test paper are rotatably connected to the inner wall of the shell. A through groove is provided on the cover for dripping extract onto the test paper. A motor is fixedly connected to the outer wall of the shell. The output end of the motor passes through the shell and is fixedly connected to the winding rod. A button for controlling the motor is provided on the outer wall of the shell.

[0008] The present invention is further configured such that: a groove is provided on the side wall of the winding rod for the test paper to enter; a clamping plate is slidably connected in the groove; an arc-shaped rod is fixedly connected to the side wall of the clamping plate; a sliding groove is provided on the side wall of the groove for the arc-shaped rod to slide; the sliding groove and the clamping plate are connected by a spring; when the spring is in its natural state, the clamping plate and the side of the groove away from the sliding groove abut against each other.

[0009] The present invention is further configured such that two limiting rings are fixedly connected to the fixed rod.

[0010] The present invention is further configured such that when the test paper and the two connecting rods are in contact with each other, the top of the test paper and the inner wall of the cover are in contact with each other.

[0011] The present invention is further configured such that the cover is L-shaped.

[0012] The present invention is further configured such that the cover and the shell are connected by a locking mechanism.

[0013] The present invention is further configured such that: the cover body is rotatably connected to a cover plate at the through groove to control the opening and closing of the through groove.

[0014] In summary, this utility model has the following beneficial effects: When batch testing of vegetables is required, the test paper can be automatically wound up by a motor-driven winding rod. At this time, the test paper located in the through slot will move towards the winding rod, thereby achieving automatic replacement of the test paper, reducing the number of operation steps for staff and improving testing efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the external structure of this utility model; Figure 2 A cross-sectional view of this utility model Figure 1 ; Figure 3 for Figure 2 Enlarged view of point A; Figure 4 A cross-sectional view of this utility model Figure 2 ; Figure 5 A cross-sectional view of this utility model Figure 3 .

[0016] In the diagram: 1. Test paper; 2. Housing; 3. Cover; 4. Fixing rod; 5. Rewinding rod; 6. Connecting rod; 7. Through groove; 8. Motor; 9. Button; 10. Groove; 11. Clamping plate; 12. Arc rod; 13. Slide groove; 14. Spring; 15. Limiting ring; 16. Lock body; 17. Cover plate. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0018] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] A vegetable pesticide residue testing device, such as Figures 1-5 As shown, the device includes a test paper 1 wound up, a housing 2 and a cover 3 rotatably connected to each other. The cover 3 is L-shaped, allowing the test paper 1 to be easily installed inside the housing 2 after it is opened. The cover 3 and the housing 2 are connected by a locking body 16, which prevents the cover 3 from rotating accidentally and provides better control over whether the housing 2 is opened. A fixing rod 4 for placing the test paper 1 is fixedly connected to the inner wall of the housing 2. A winding rod 5 for winding the test paper 1 and two connecting rods 6 for conveying the test paper 1 are rotatably connected to the inner wall of the housing 2. The cover 3 has a groove for dripping the extract onto the test paper 1. 7. When the test paper 1 and the two connecting rods 6 are in contact with each other, the top of the test paper 1 and the inner wall of the cover 3 are in contact with each other, which makes the test paper 1 located between the two connecting rods 6 more flat, making it easier to drop the extract onto the test paper 1. The cover 3 is rotatably connected to the cover plate 17 at the through groove 7, which is used to control the opening and closing of the through groove 7. This facilitates the control of the opening and closing of the through groove 7 and prevents external dust from entering the housing 2 through the through groove 7 when the testing equipment is not in use. The outer wall of the housing 2 is fixedly connected to the motor 8. The output end of the motor 8 passes through the housing 2 and is fixedly connected to the winding rod 5. The outer wall of the housing 2 is provided with a button 9 for controlling the motor 8.

[0021] When testing vegetables for pesticide residues, rotate the cover 3 to open the housing 2, then place the test paper 1 on the fixing rod 4, and then pull the test paper 1 to drive it through the connecting rod 6 and wrap it around the winding rod 5. Finally, rotate the cover 3 again to close the housing 2. At this time, the test paper 1, located between the two connecting rods 6, is in the through groove 7. When it is necessary to test vegetables for pesticide residues, cut the vegetables into several small pieces, then put the cut vegetables into a test tube and add buffer solution to the test tube. At the same time, use vibration to fully mix the two to form an extract. The extract is then dropped onto the test paper 1 located at the through groove 7, and the changes in the test paper 1 are observed through the through groove 7. This achieves the effect of detecting whether there are pesticide residues in vegetables. When batch testing of vegetables is required, the button 9 is pressed to drive the motor 8 to rotate. The output end of the motor 8 drives the winding rod 5 to rotate and wind up the test paper 1. At this time, the test paper 1 located at the through groove 7 will move towards the winding rod 5, thereby achieving the effect of automatically replacing the test paper 1, reducing the number of operation steps for staff and improving the testing efficiency.

[0022] Furthermore, the side wall of the take-up bar 5 has a groove 10 for the test paper 1 to enter. A clamping plate 11 is slidably connected in the groove 10. An arc-shaped rod 12 is fixedly connected to the side wall of the clamping plate 11. The side wall of the groove 10 has a sliding groove 13 for the arc-shaped rod 12 to slide. The sliding groove 13 and the clamping plate 11 are connected by a spring 14. When the spring 14 is in its natural state, the clamping plate 11 and the side of the groove 10 away from the sliding groove 13 abut against each other, further defining the connection method between the test paper 1 and the take-up bar 5. When installing the test paper 1, the clamping plate 11 is moved along the groove 10, causing the spring 14 to deform and compress. Then, the test paper 1 is placed into the groove 10 and the clamping plate 11 is released. At this time, the spring 14 loses its restriction and deforms back to its original state, causing the clamping plate 11 to move and causing the two sides of the test paper 1 to abut against the clamping plate 11 and the side wall of the groove 10 respectively. At this time, the test paper 1 and the winding rod 5 are restricted and cannot be separated, thus achieving the effect of installing the test paper 1 and the winding rod 5 together.

[0023] Two limiting rings 15 are fixedly connected to the fixing rod 4, which can limit the position of the test paper 1 on the fixing rod 4, prevent the test paper 1 from separating from the fixing rod 4, and improve the stability of the fixing rod 4 on the test paper 1.

[0024] The usage process of this utility model is as follows: When testing vegetables for pesticide residues, rotate the cover 3 to open the housing 2, then place the test paper 1 on the fixing rod 4, and then pull the test paper 1 to drive it through the connecting rod 6 and wrap it around the winding rod 5. Finally, rotate the cover 3 again to close the housing 2. At this time, the test paper 1, located between the two connecting rods 6, is in the through groove 7. When it is necessary to test vegetables for pesticide residues, cut the vegetables into several small pieces, then put the cut vegetables into a test tube and add buffer solution to the test tube. At the same time, use vibration to fully mix the two to form an extract. The extract is then dropped onto the test paper 1 located at the through groove 7, and the changes in the test paper 1 are observed through the through groove 7. This achieves the effect of detecting whether there are pesticide residues in vegetables. When batch testing of vegetables is required, the button 9 is pressed to drive the motor 8 to rotate. The output end of the motor 8 drives the winding rod 5 to rotate and wind up the test paper 1. At this time, the test paper 1 located at the through groove 7 will move towards the winding rod 5, thereby achieving the effect of automatically replacing the test paper 1, reducing the number of operation steps for staff and improving the testing efficiency.

[0025] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A vegetable pesticide residue detection device, comprising a housing (2) and a cover (3) rotatably connected to each other, characterized in that: It also includes a test paper (1) arranged in a coiled configuration. A fixing rod (4) for placing the test paper (1) is fixedly connected to the inner wall of the housing (2). A winding rod (5) for winding the test paper (1) and two connecting rods (6) for conveying the test paper (1) are rotatably connected to the inner wall of the housing (2). A through groove (7) for dripping the extract onto the test paper (1) is provided on the cover (3). A motor (8) is fixedly connected to the outer wall of the housing (2). The output end of the motor (8) passes through the housing (2) and is fixedly connected to the winding rod (5). A button (9) for controlling the motor (8) is provided on the outer wall of the housing (2).

2. The vegetable pesticide residue detection device according to claim 1, characterized in that: The winding rod (5) has a groove (10) on its side wall for the test paper (1) to enter. A clamping plate (11) is slidably connected in the groove (10). An arc rod (12) is fixedly connected to the side wall of the clamping plate (11). A slide groove (13) is provided on the side wall of the groove (10) for the arc rod (12) to slide. The slide groove (13) and the clamping plate (11) are connected by a spring (14). When the spring (14) is in its natural state, the clamping plate (11) and the side of the groove (10) away from the slide groove (13) abut against each other.

3. The vegetable pesticide residue detection device according to claim 1, characterized in that: Two limiting rings (15) are fixedly connected to the fixing rod (4).

4. The vegetable pesticide residue detection device according to claim 1, characterized in that: When the test paper (1) and the two connecting rods (6) come into contact with each other, the top of the test paper (1) and the inner wall of the cover (3) come into contact with each other.

5. The vegetable pesticide residue detection device according to claim 1, characterized in that: The cover (3) is L-shaped.

6. The vegetable pesticide residue detection device according to claim 5, characterized in that: The cover (3) and the shell (2) are connected by a lock (16).

7. The vegetable pesticide residue detection device according to claim 1, characterized in that: The cover (3) is rotatably connected to a cover plate (17) at the through groove (7) for controlling the opening and closing of the through groove (7).

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