Sampling device for fruit pesticide residue detection
By designing the clamping device, adjustment device and clamping device, the problems of difficulty in replacing the cutter head, poor cleaning effect and limited application scope in the existing sampling device for fruit pesticide residue detection are solved, and the equipment is quickly replaced and efficient cleaning is achieved. and wide applicability, improving the accuracy of the test results.
Patent Information
- Application Number
- CN202420398763.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-01
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-03-01
AI Technical Summary
The existing sampling device for fruit pesticide residue detection has problems such as difficulty in replacing the cutter head, poor cleaning effect, and limited application scope, which affects the practicality of the equipment and the accuracy of the test results.
A sampling device including a clamping device, an adjustment device and a clamping device are designed. The clamping device realizes rapid replacement of the cutting head through the synergy of the unlocking sleeve, elastic plate and spring; the adjustment device flexibly adjusts the water flow speed through mechanical adjustment of the flexible plate, adjustment tube and screw; the clamping device flexibly adjusts the water flow speed through sliders, balls and springs The combination of fruits is achieved with stable clamping.
It realizes rapid replacement of the cutting head, improves cleaning efficiency and flexibility, enhances adaptability to fruits of different specifications, and improves the practicality of the equipment and the accuracy of the test results.
Smart Images
Figure CN222481845U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sampling devices, and more specifically, to a sampling device for detecting fruit pesticide residues. Background Art
[0002] In the existing fruit pesticide residue detection technology, the design and function of the sampling device is one of the key factors. At present, most sampling devices rely on manual cutting sampling, which is not only time-consuming and labor-intensive. In order to improve efficiency and accuracy, some sampling devices use cutting devices for sample preparation. However, the existing cutting sampling devices have the following major problems:
[0003] The cutter head of most cutting sampling devices is fixedly connected to the device body. This design makes it difficult to quickly replace the cutter head, which not only increases the operator's workload, but also limits the efficiency of cutter maintenance and replacement. The fixed connection structure is particularly inconvenient when used for a long time or when special cutters are required, which greatly limits the practicability of the equipment.
[0004] During the cutting process, the surface of the workbench will inevitably be contaminated with fruit juice. If these residues are not cleaned in time, they will affect the purity of subsequent samples and thus affect the accuracy of the test results. Existing cleaning devices are usually simple in structure and lack an effective adjustment mechanism to control the flow rate of the cleaning water, which to a certain extent limits the cleaning effect and efficiency, and limits the flexibility of the equipment, and may also cause a waste of water resources.
[0005] Reasonable clamping is crucial for fruits of different types and sizes. Existing devices are usually simple in design in terms of clamping and lack adaptability to fruits of different sizes, which limits the scope of application of the equipment and reduces the practicality of the equipment. It may also cause instability or uneven cutting during the cutting process, affecting the quality of the sample and the reliability of the test results. Utility Model Content
[0006] In view of the problems existing in the prior art, the utility model provides a sampling device for detecting pesticide residues in fruits to solve the technical problems mentioned in the background technology.
[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sampling device for detecting pesticide residues in fruits, comprising a fixing frame, a placing platform is provided on the fixing frame, a cylinder is provided on the top of the fixing frame, a piston rod is provided under the cylinder, a clamping device is connected under the piston rod, the clamping device comprises a connecting sleeve, a top block, an elastic plate, a second spring, an unlocking sleeve, a handle and a cutter head, the connecting sleeve is connected to the bottom end of the piston rod, the top block is arranged above the cutter head, the elastic plate is installed on the inner side of the connecting sleeve, the unlocking sleeve can be movably installed on the inner side of the connecting sleeve, the handle is arranged on both sides of the unlocking sleeve, and the second spring is installed in the connecting sleeve On the other side, adjusting devices are arranged on both sides of the cylinder, and the adjusting devices include a flexible plate, an adjusting tube, an adjusting plate, a screw, a screw sleeve, a nozzle, a limiting plate and a one-way tube. The nozzle is installed on both sides of the cylinder, the one-way tube is connected to the nozzle, one end of the adjusting tube is movably connected to the one-way tube, the adjusting plate is fixedly installed on the inner side of the adjusting tube, the screw is installed on one side of the adjusting plate, the limiting plate is movably installed in the one-way tube, one end of the screw sleeve is connected to the limiting plate, the screw and the screw sleeve are movably connected through threads, one end of the flexible plate is connected to the adjusting plate, and the other end of the flexible plate is connected to the limiting plate. A clamping device is arranged above the placing table.
[0008] The utility model is further configured such that a sliding block is provided on the outer side of the limit plate, a sliding groove is correspondingly provided on the inner wall of the one-way tube, and the sliding block is slidably installed in the sliding groove. The configuration of the sliding block and the sliding groove can make the adjustment device more stable to use.
[0009] The utility model is further configured that a third spring is provided inside the connecting sleeve, one end of the third spring is connected to the top block, and the third spring makes the connection of the clamping device more stable.
[0010] The utility model is further configured that the placement platform is provided with water holes, and the water holes are evenly arranged on the placement platform. The arrangement of the water holes facilitates the treatment of wastewater.
[0011] The utility model is further configured that the fixed frame is provided with a waste water tank, and the waste water tank is detachably installed under the placement table, and the waste water tank can collect waste water.
[0012] The utility model is further configured such that the clamping device comprises a slide groove, a slider and a clamping plate, the slide groove is opened on one side of the fixed frame, the slider is slidably installed in the slide groove, the clamping plate is installed on one side of the slider, and the clamping device can clamp fruits of different sizes.
[0013] The utility model is further configured that a ball is arranged inside the slide block, a positioning groove is opened on the side wall of the slide groove, and the ball is movably installed in the positioning groove. The above components can realize the limiting and self-locking of the slide block.
[0014] The utility model is further configured that a first spring is provided on the inner side of the sliding block, the other end of the first spring is connected to the ball bearing, and the first spring can ensure the stable use of the ball bearing.
[0015] Compared with the prior art, the utility model provides a sampling device for detecting pesticide residues in fruits, which has the following beneficial effects:
[0016] 1. The clamping device realizes the rapid replacement of the cutter head through its unique structural design, which improves the use efficiency of the equipment. Through the coordinated action of the unlocking sleeve, elastic plate, spring and other components, the cutter head can be easily unloaded and loaded. The operation is simple and saves time and labor for replacing the cutter head.
[0017] 2. The design of the adjustment device allows the user to flexibly adjust the water flow rate to meet different cleaning needs. The stretching or compression of the flexible plate is adjusted by rotating the adjustment tube, thereby affecting the water flow rate. This mechanical adjustment method is accurate and reliable, enhancing the practicality and flexibility of the equipment. In addition, the design of the sliding block and sliding groove ensures the smoothness and precision of the adjustment process.
[0018] 3. The design of the clamping device makes it more convenient and stable to fix the fruit. The cooperation of the slider, ball and spring not only ensures that the clamping plate can move smoothly, but also automatically locks the position after clamping the fruit, thereby ensuring that the fruit will not move during the cutting process, improving the accuracy and safety of sampling. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is a schematic diagram of the overall structure of a sampling device for detecting pesticide residues in fruits in the utility model;
[0020] Figure 2 It is a schematic cross-sectional structure diagram of the clamping device part of the utility model;
[0021] Figure 3 It is a cross-sectional structural diagram of the adjusting device part in the utility model;
[0022] Figure 4 It is a cross-sectional structural diagram of the adjusting device part in the utility model at another angle;
[0023] Figure 5 It is a schematic cross-sectional structure diagram of the clamping device part in the utility model.
[0024] In the figure: 1. fixing frame; 2. placing table; 3. cylinder; 4. piston rod; 5. connecting sleeve; 6. top block; 7. elastic plate; 8. second spring; 9. unlocking sleeve; 10. handle; 11. cutter head; 12. flexible plate; 13. adjusting tube; 14. adjusting plate; 15. screw rod; 16. screw sleeve; 17. nozzle; 18. limit plate; 19. one-way tube; 20. sliding block; 21. sliding groove; 22. third spring; 23. water hole; 24. waste water tank; 25. sliding groove; 26. slider; 27. clamping plate; 28. ball bearing; 29. positioning groove; 30. first spring. DETAILED DESCRIPTION
[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0026] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.
[0027] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.
[0028] See also Figure 1-5A sampling device for detecting pesticide residues in fruits comprises a fixing frame 1, a placing table 2 is arranged on the fixing frame 1, a cylinder 3 is arranged on the top of the fixing frame 1, a piston rod 4 is arranged below the cylinder 3, a clamping device is connected below the piston rod 4, the clamping device comprises a connecting sleeve 5, a top block 6, an elastic plate 7, a second spring 8, an unlocking sleeve 9, a handle 10 and a cutter head 11, the connecting sleeve 5 is connected to the bottom end of the piston rod 4, the top block 6 is arranged above the cutter head 11, the elastic plate 7 is installed on the inner side of the connecting sleeve 5, the unlocking sleeve 9 is movably installed on the inner side of the connecting sleeve 5, the handle 10 is arranged on both sides of the unlocking sleeve 9, the second spring 8 is installed on the inner side of the connecting sleeve 5, and an adjusting device is arranged on both sides of the cylinder 3, and the adjusting device comprises Flexible plate 12, adjusting tube 13, adjusting plate 14, screw 15, screw sleeve 16, nozzle 17, limit plate 18 and one-way tube 19, nozzle 17 is installed on both sides of cylinder 3, one-way tube 19 is connected to nozzle 17, one end of adjusting tube 13 is movably connected to one-way tube 19, adjusting plate 14 is fixedly installed on the inner side of adjusting tube 13, screw 15 is installed on one side of adjusting plate 14, limit plate 18 is movably installed in one-way tube 19, one end of screw sleeve 16 is connected to limit plate 18, screw 15 and screw sleeve 16 are movably connected through thread, one end of flexible plate 12 is connected to adjusting plate 14, the other end of flexible plate 12 is connected to limit plate 18, and a clamping device is arranged above placing table 2.
[0029] A sliding block 20 is disposed on the outer side of the limiting plate 18 , and a sliding groove 21 is correspondingly formed on the inner wall of the one-way tube 19 , in which the sliding block 20 is slidably installed.
[0030] A third spring 22 is provided inside the connecting sleeve 5 , and one end of the third spring 22 is connected to the top block 6 .
[0031] The placement platform 2 is provided with water holes 23 , and the water holes 23 are evenly arranged on the placement platform 2 .
[0032] The fixing frame 1 is provided with a waste water tank 24 , and the waste water tank 24 is detachably installed under the placing table 2 .
[0033] In this embodiment, when the device is needed, first, the fruit to be sampled is placed on the placement table 2, and then the cylinder 3 is opened. The cylinder 3 drives the cutter head 11 to descend through the piston rod 4, thereby completing the cutting of the fruit, and then the cut sample is taken out, and the conveying device and the regulating tube 13 are movably connected together, and then the conveying device is opened. The conveying device conveys water or cleaning liquid to the nozzle 17, and sprays it to the placement table 2 through the nozzle 17 to clean the surface of the placement table 2. Then the cleaned waste water will flow into the waste water tank 24 through the water hole 23. When the water flow rate needs to be adjusted, the regulating tube 13 is rotated, and the regulating plate 14 rotates with the regulating tube 13, and then the screw 15 will rotate together. Since the screw 15 and the screw sleeve 16 are movably connected through threads, and at the same time, due to the limiting effect of the sliding block 20 and the sliding groove 21 on the limiting plate 18, the limiting plate 18 and the screw sleeve 16 will not rotate accordingly, and then The screw sleeve 16 will move up and down, and the limit plate 18 will move up and down at the same time, and the sliding block 20 will slide in the sliding groove 21, and then the adjusting plate 14 and the limit plate 18 will stretch or compress the flexible plate 12, so as to adjust the flow rate of water. When the cutter head 11 needs to be replaced, the unlocking sleeve 9 is pushed upward by the handle 10, and the unlocking sleeve 9 will compress the second spring 8, and the unlocking sleeve 9 will lift the elastic plate 7, and then the top block 6 is directly pulled out from the inner side of the connecting sleeve 5, so that the cutter head 11 is removed, and then the new cutter head 11 is taken out, and then the top block 6 is extended into the inner side of the connecting sleeve 5 through the unlocking sleeve 9. The top block 6 will compress the elastic plate 7 during the extension process. When the top block 6 is fully inserted into the inner side of the connecting sleeve 5, the elastic plate 7 will be reset and snapped into the space below the top block 6, and at the same time, the top block 6 will compress the third spring 22, and the third spring 22 will resist the top block 6, so that the connection is more stable.
[0034] See also Figure 1-2 As an implementation method of a sampling device for detecting pesticide residues in fruits, the clamping device includes a slide groove 25, a slider 26 and a clamping plate 27. The slide groove 25 is opened on one side of the fixed frame 1, the slider 26 is slidably installed in the slide groove 25, and the clamping plate 27 is installed on one side of the slider 26.
[0035] A ball bearing 28 is disposed inside the slide block 26 , and a positioning groove 29 is formed on the side wall of the slide groove 25 , in which the ball bearing 28 is movably mounted.
[0036] A first spring 30 is disposed inside the slider 26 , and the other end of the first spring 30 is connected to the ball 28 .
[0037] More specifically, after placing the fruit on the placing table 2, the clamping plate 27 is pushed in the corresponding direction, so that the slider 26 slides in the slide groove 25, and at the same time the ball 28 slides out of the original positioning groove 29 and compresses the first spring 30 set on one side. When the clamping plates 27 on both sides stably clamp the fruit, stop moving the clamping plates 27, and then the first spring 30 will reset, thereby pushing the ball 28 into the corresponding positioning groove 29.
[0038] In summary, when the overall equipment is in use or running: first, the fruit to be sampled is placed on the placement table 2, and then the cylinder 3 is opened. The cylinder 3 drives the cutter head 11 to descend through the piston rod 4, thereby completing the cutting of the fruit, and then the cut sample is taken out, and the conveying device and the regulating tube 13 are movably connected together, and then the conveying device is opened. The conveying device conveys water or cleaning liquid to the nozzle 17, and sprays it to the placement table 2 through the nozzle 17 to clean the surface of the placement table 2, and then the cleaned waste water will flow into the waste water tank 24 through the water hole 23. When the water flow rate needs to be adjusted, the regulating tube 13 is rotated, and the regulating plate 14 rotates with the regulating tube 13, and then the screw 15 will rotate together. Since the screw 15 and the screw sleeve 16 are movably connected through a thread, and at the same time, due to the limiting effect of the sliding block 20 and the sliding groove 21 on the limiting plate 18, the limiting plate 18 and the screw sleeve 16 will not rotate with it, and then the screw The sleeve 16 will move up and down, and the limit plate 18 will move up and down, and the sliding block 20 will slide in the sliding groove 21, and then the adjusting plate 14 and the limit plate 18 will stretch or compress the flexible plate 12, so as to adjust the water flow rate. When the cutter head 11 needs to be replaced, the unlocking sleeve 9 is pushed upward by the handle 10, and the unlocking sleeve 9 will compress the second spring 8, and the unlocking sleeve 9 will lift the elastic plate 7, and then the top block 6 is directly pulled out from the inner side of the connecting sleeve 5, so as to remove the cutter head 11, and then the new cutter head 11 is taken out, and then the top block 6 is extended into the inner side of the connecting sleeve 5 through the unlocking sleeve 9. The top block 6 will compress the elastic plate 7 during the extension process. When the top block 6 is fully inserted into the inner side of the connecting sleeve 5, the elastic plate 7 will be reset and snapped into the space below the top block 6, and at the same time, the top block 6 will compress the third spring 22, and the third spring 22 will resist the top block 6, so that the connection is more stable.
[0039] After placing the fruit on the placing table 2, the clamping plate 27 is pushed in the corresponding direction, so that the slider 26 slides in the slide groove 25, and the ball 28 slides out of the original positioning groove 29 and compresses the first spring 30 set on one side. When the clamping plates 27 on both sides stably clamp the fruit, stop moving the clamping plates 27, and then the first spring 30 will reset, thereby pushing the ball 28 into the corresponding positioning groove 29.
[0040] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.
Claims
1. A sampling device for detecting pesticide residues in fruits, comprising a fixed frame (1), a placing table (2) being provided on the fixed frame (1), a cylinder (3) being provided at the top of the fixed frame (1), and a piston rod (4) being provided below the cylinder (3), wherein: A clamping device is connected below the piston rod (4), and the clamping device comprises a connecting sleeve (5), a top block (6), an elastic plate (7), a second spring (8), an unlocking sleeve (9), a handle (10) and a cutter head (11). The connecting sleeve (5) is connected to the bottom end of the piston rod (4), the top block (6) is arranged above the cutter head (11), the elastic plate (7) is mounted on the inner side of the connecting sleeve (5), the unlocking sleeve (9) is mounted on the inner side of the connecting sleeve (5), the handle (10) is arranged on both sides of the unlocking sleeve (9), and the second spring (8) is mounted on the inner side of the connecting sleeve (5). Adjusting devices are arranged on both sides of the cylinder (3), and the adjusting devices comprise a flexible plate (12), an adjusting tube (13), an adjusting plate (14), a screw (15), and a plurality of adjusting devices. A rod (15), a screw sleeve (16), a nozzle (17), a limit plate (18) and a one-way tube (19), wherein the nozzle (17) is mounted on both sides of the cylinder (3), the one-way tube (19) is connected to the nozzle (17), one end of the adjustment tube (13) is movably connected to the one-way tube (19), the adjustment plate (14) is mounted on the inner side of the adjustment tube (13), the screw rod (15) is mounted on one side of the adjustment plate (14), the limit plate (18) is mounted in the one-way tube (19), one end of the screw sleeve (16) is connected to the limit plate (18), one end of the flexible plate (12) is connected to the adjustment plate (14), and the other end of the flexible plate (12) is connected to the limit plate (18), and a clamping device is arranged above the placement table (2).
2. The sampling device for detecting pesticide residues in fruits according to claim 1, characterized in that: A sliding block (20) is provided on the outer side of the limit plate (18), a sliding groove (21) is correspondingly provided on the inner wall of the one-way tube (19), and the sliding block (20) is slidably installed in the sliding groove (21).
3. A sampling device for detecting pesticide residues in fruits according to claim 2, characterized in that: A third spring (22) is provided inside the connecting sleeve (5), and one end of the third spring (22) is connected to the top block (6).
4. The sampling device for detecting pesticide residues in fruits according to claim 1, characterized in that: The placement platform (2) is provided with water holes (23), and the water holes (23) are evenly arranged on the placement platform (2).
5. A sampling device for detecting pesticide residues in fruits according to claim 4, characterized in that: The fixing frame (1) is provided with a waste water tank (24), and the waste water tank (24) is detachably mounted below the placement table (2).
6. A sampling device for detecting pesticide residues in fruits according to any one of claims 1 to 5, characterized in that: The clamping device comprises a slide groove (25), a slider (26) and a clamping plate (27); the slide groove (25) is provided on one side of the fixing frame (1); the slider (26) is slidably mounted in the slide groove (25); and the clamping plate (27) is mounted on one side of the slider (26).
7. A sampling device for detecting pesticide residues in fruits according to claim 6, characterized in that: A ball bearing (28) is provided inside the sliding block (26), a positioning groove (29) is provided on the side wall of the sliding groove (25), and the ball bearing (28) is movably mounted in the positioning groove (29).
8. The sampling device for detecting pesticide residues in fruits according to claim 7 is characterized in that: A first spring (30) is provided on the inner side of the slider (26), and the other end of the first spring (30) is connected to the ball (28).