Sample storage device for detecting pesticide residue sample

Abstract

The utility model discloses a sampling and preserving device for pesticide residue sample detection relates to pesticide residue detection technical field, including sampling shell, the top of sampling shell is equipped with support subassembly, is equipped with soil floating subassembly on the support subassembly. This sampling and preserving device for pesticide residue sample detection adopts the upper and lower split type structure in sampling shell, and the cooperation of earth knife fast cutting into the soil, and the soil floating subassembly driven by the screw auger can be sent to the discharge net board with the stable deep soil, and the pure sample is bottled automatically through the receiving hopper after the classification of filter screen, and the support subassembly is positioned through the gear group linkage bottle body, and a plurality of sample bottles are knocked regularly by spring - rubber ball in the rotation process, and the buffer design of flexible support platform is combined, which not only strengthens the mixing uniformity of detection liquid and soil, but also avoids the risk of bottle body falling, and significantly improves the sample preparation efficiency and data reliability.

Description

Technical Field

[0001] This utility model relates to the field of pesticide residue detection technology, and in particular to a sampling and preservation device for pesticide residue sample detection. Background Technology

[0002] Pesticide residue samples refer to analytical samples collected from soil or the surface of agricultural products to detect the residues of chemical pesticides such as organophosphates and pyrethroids. The samples must maintain the uniformity of the original component distribution during collection and preservation to avoid errors in chromatographic / mass spectrometry analysis caused by impurities or uneven mixing.

[0003] Existing pesticide residue sampling equipment mostly uses static immersion or manual shaking, which makes it difficult to achieve sufficient contact between the detection solution and soil particles. Furthermore, shaking and collection are generally two separate steps that require additional equipment, making the process more cumbersome. Therefore, a sampling and preservation device for pesticide residue detection is provided to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this invention is to solve the problems of uneven oscillation and cumbersome procedures in the existing technology, and to propose a sampling and preservation device for pesticide residue detection.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A sampling and preservation device for pesticide residue testing includes a sampling shell, a support assembly installed on the top of the sampling shell, a soil floating assembly installed on the support assembly, the bottom end of the soil floating assembly penetrating and extending to the bottom of the sampling shell, the soil floating assembly cooperating with the sampling shell to drill and collect the soil sample to be tested, and multiple auxiliary support assemblies for shaking the sample bottle positioning components are also installed on the soil floating assembly.

[0007] Preferably, the sampling housing includes an upper housing and a lower housing, the bottom of the upper housing is fixed to the lower housing, a discharge screen is installed on the upper housing, and a receiving hopper is provided on the lower housing to receive the test sample through the discharge screen.

[0008] Preferably, the upper shell is equipped with multiple lower locking blocks, the bottom of the support assembly is fixed to the receiving hopper by multiple bottle positioning parts, and the bottom of the lower shell is equipped with a soil inserting knife.

[0009] Preferably, the support assembly includes an outer toothed disc, and three evenly distributed support frames are installed on the top of the outer toothed disc. The outer toothed disc is fixedly connected to the soil floating assembly through the three support frames. Each of the three support frames is equipped with a support spring, and each of the three support springs is connected with a rubber ball.

[0010] The external gear disc has three upper locking blocks installed on its side, and the three upper locking blocks engage with the adjacent lower locking blocks.

[0011] Preferably, the support assembly further includes a drive gear and three driven gears. The three bottle positioning components are all mounted on adjacent driven gears. The drive gear meshes with the three driven gears, and the three driven gears mesh with the inner wall of the outer gear disk.

[0012] Preferably, the soil floating assembly includes a drive motor, which is fixed to the support assembly. The output shaft of the drive motor is connected to a connecting rod via a coupling. The bottom of the connecting rod penetrates the upper housing. An auger is fixedly connected to the extended end of the connecting rod. The bottom end of the auger extends to the bottom of the lower housing. The drive gear is mounted on the surface of the connecting rod.

[0013] The connecting rod is equipped with a scraper, which is connected to the inner wall of the sampling housing.

[0014] Preferably, the bottle positioning component includes a support platform, with three annularly distributed detection bottle fixing components installed on the top of the support platform, and a base provided at the bottom of the support platform, on which ball bearings are installed, and the ball bearings making rolling contact with the bottom of the support platform.

[0015] The bottom of the support platform is connected to multiple return springs, and the ends of the multiple return springs away from the support platform are all connected to the driven gear.

[0016] Preferably, the test bottle fixing component includes a slide rail, a clamping plate is slidably connected to the slide rail, a threaded rod is rotatably connected to the clamping plate, a support plate is installed on the top of the slide rail, and the support plate is threadedly connected to the threaded rod.

[0017] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0018] The sampling and preservation device for pesticide residue testing features a split-type sampling shell that, combined with a soil-inserting blade, quickly cuts into the soil. A soil-floating component driven by an auger stably transports deep soil to the discharge screen. After grading through a filter, the purified sample is automatically bottled through a receiving hopper. The support component, through a gear set linked to the bottle positioning component, ensures that multiple sample bottles are regularly struck by springs and rubber balls during rotation. Combined with the buffer design of the flexible support platform, this enhances the uniformity of mixing between the test solution and the soil, avoids the risk of bottle detachment, and significantly improves sample preparation efficiency and data reliability.

[0019] The detachable locking mechanism of this pesticide residue sample collection and preservation device allows for quick separation of the support components from the sampling housing, facilitating cleaning and maintenance. The threaded rod adjustable clamping plate is compatible with sample bottles of different sizes, and the sliding rail structure ensures clamping stability. The combination of a scraper and a variable density filter achieves both soil impurity separation and continuous sample delivery. Attached Figure Description

[0020] Figure 1 This is a first-view perspective three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a second-view perspective three-dimensional structural diagram of the present invention;

[0022] Figure 3 This is a three-dimensional structural diagram of the present invention after the support components have been removed;

[0023] Figure 4 This is a three-dimensional structural diagram of the soil floating component in this utility model;

[0024] Figure 5 This is a three-dimensional structural diagram of the support component in this utility model;

[0025] Figure 6 This is a three-dimensional structural diagram of the bottle positioning component in this utility model;

[0026] Figure 7 This is a three-dimensional structural diagram of the bottle fixing component in the bottle positioning component of this utility model;

[0027] Figure 8 This is a partial cross-sectional view of the connection between the driven gear and the external gear disk in this utility model.

[0028] Legend: 1. Sampling shell; 11. Upper shell; 12. Discharge mesh plate; 13. Receiving hopper; 14. Lower clamping block; 15. Lower shell; 16. Soil inserting knife; 2. Support assembly; 21. Support frame; 22. Support spring; 23. Rubber ball; 24. External gear plate; 25. Upper clamping block; 26. Driving gear; 27. Driven gear; 3. Soil floating assembly; 31. Drive motor; 32. Connecting rod; 33. Screwdriver; 34. Scraper; 4. Bottle positioning component; 41. Support platform; 42. Slide rail; 43. Return spring; 44. Base; 45. Ball bearing; 46. Threaded rod; 47. Clamping plate; 48. Support plate. Detailed Implementation

[0029] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0031] like Figure 1-8 As shown, this utility model provides a sampling and preservation device for pesticide residue sample detection, including a sampling shell 1, a support component 2 installed on the top of the sampling shell 1, a soil floating component 3 installed on the support component 2, the bottom end of the soil floating component 3 penetrating and extending to the bottom of the sampling shell 1, the soil floating component 3 cooperating with the sampling shell 1 to drill the soil sample to be tested, and multiple auxiliary support components 2 bottle positioning parts 4 for shaking the sample bottle are also installed on the soil floating component 3.

[0032] In this embodiment, the sampling housing 1 includes an upper housing 11 and a lower housing 15. The bottom of the upper housing 11 is fixed to the lower housing 15. A discharge mesh plate 12 is installed on the upper housing 11. A receiving hopper 13 is opened on the lower housing 15 to receive the test sample through the discharge mesh plate 12. Multiple lower locking blocks 14 are installed on the upper housing 11. The bottom of the support assembly 2 is fixed to the receiving hopper 13 through multiple bottle positioning parts 4. A soil inserting knife 16 is installed at the bottom of the lower housing 15.

[0033] Inside the sampling housing 1, the upper housing 11 and the lower housing 15 serve as the main body. A lower locking block 14 is added to the upper housing 11, which can cooperate with the support component 2 to achieve fixed installation and disassembly. The discharge screen 12 and the receiving hopper 13 on the upper housing 11 can cooperate with the internal soil floating component 3 to transport the soil up and then discharge it evenly from the discharge screen 12 into the receiving hopper 13. The soil is then collected and bottled through the receiving hopper 13. When in use, simply press the lower housing 15 down, insert the soil inserter 16 into the soil, and then activate the soil floating component 3 to start the operation. The shape of the soil inserter 16 can be matched with the lower housing 15 to achieve better and more stable entry.

[0034] In this embodiment, the support component 2 includes an outer gear disk 24, with three evenly distributed support frames 21 mounted on the top of the outer gear disk 24. The outer gear disk 24 is fixedly connected to the soil floating component 3 through the three support frames 21. Each of the three support frames 21 is equipped with a support spring 22, and each of the three support springs 22 is connected with a rubber ball 23. The outer gear disk 24 has three upper locking blocks 25 mounted on its side, which engage with adjacent lower locking blocks 14. The support component 2 also includes a drive gear 26 and three driven gears 27. Three bottle positioning parts 4 are mounted on adjacent driven gears 27. The drive gear 26 meshes with the three driven gears 27, and the three driven gears 27 mesh with the inner wall of the outer gear disk 24.

[0035] Within the support assembly 2, the support frame 21 and the outer gear disk 24 serve as the main support. Multiple upper locking blocks 25 and lower locking blocks 14 on the outer gear disk 24 cooperate to achieve overall loading and unloading. Within this assembly, the sampling shell 1 is the lower half, while the support assembly 2, the soil floating assembly 3, and the bottle positioning component 4 form the upper half. After removing the connection between the upper locking blocks 25 and lower locking blocks 14, the support assembly 2, the soil floating assembly 3, and the bottle positioning component 4 can be pulled out from above. The outer gear disk 24, the driving gear 26, and the three driven gears 27 can rotate in conjunction with the driving gear 26 when the soil floating assembly 3 is working. This allows the bottle positioning component 4 to correspondingly drive the rotation of multiple sample soil bottles containing pesticide residues to be tested, ensuring uniform mixing. Furthermore, a support spring 22 and a rubber ball 23 are incorporated to tap the sample soil bottles containing pesticide residues to be tested, improving mixing efficiency. (See also...) Figure 8 From the partial cross-sectional structural diagram of the external gear disk 24 and the driven gear, the driven gear 27 is designed to be slightly wider at the top and slightly narrower at the bottom. This design, combined with the downward pressure of the bottle positioning component, prevents the driven gear 27 from falling off during rotation. Furthermore, the external gear disk 24, the driving gear 26, and the three driven gears 27 are tightly meshed with each other, further improving the stability of the device.

[0036] In this embodiment, the soil floating component 3 includes a drive motor 31, which is fixed to the support component 2. The output shaft of the drive motor 31 is connected to a connecting rod 32 via a coupling. The bottom of the connecting rod 32 passes through the upper housing 11, and an auger 33 is fixedly connected to the extended end of the connecting rod 32. The bottom end of the auger 33 extends to the bottom of the lower housing 15. A scraper 34 is installed on the connecting rod 32, and the scraper 34 is connected to the inner wall of the sampling housing 1. The drive gear 26 is installed on the surface of the connecting rod 32.

[0037] Inside the soil floating assembly 3, the drive motor 31 and the connecting rod 32 work together to drive the auger 33 to rotate, which can transport the soil from below the soil inserter 16 to the upper shell 11. The scraper 34 can rotate and push the soil fed into the upper shell 11 and gradually squeeze it out from the discharge screen 12 into the receiving hopper 13. By adding filter screens of different densities on the discharge screen 12, impurities are left in the upper shell 11. In this way, the impurities collected from the receiving hopper 13 can be directly bottled.

[0038] In this embodiment, the bottle positioning component 4 includes a support platform 41. Three ring-shaped detection bottle fixing components are installed on the top of the support platform 41, and a base 44 is provided at the bottom of the support platform 41. A ball bearing 45 is installed on the base 44, and the ball bearing 45 makes rolling contact with the bottom of the support platform 41.

[0039] The bottom of the support platform 41 is connected to multiple return springs 43. The ends of the multiple return springs 43 away from the support platform 41 are all connected to the driven gear 27. The detection bottle fixing component includes a slide rail 42. A clamping plate 47 is slidably connected to the slide rail 42. A threaded rod 46 is rotatably connected to the clamping plate 47. A support plate 48 is installed on the top of the slide rail 42. The support plate 48 is threadedly connected to the threaded rod 46.

[0040] The sample soil bottle containing pesticide residue to be tested is inserted into the three test bottle fixing parts within the bottle positioning part 4. Depending on the size of the bottle, the threaded rod 46 can be rotated to drive the clamping plate 47 to slide on the slide rail 42. When the support plate 48 is fixed, the threaded rod 46 drives the clamping plate 47 to move back and forth, which can adapt to different bottle sizes. The support platform 41, base 44, ball bearing 45 and multiple return springs 43 form a flexible structure. In this way, the sample soil bottle containing pesticide residue to be tested contacts the support spring 22 and rubber ball 23 more gently, preventing the sample soil bottle containing pesticide residue to be tested from being knocked off by the impact of the support spring 22 and rubber ball 23. With this structure, the support platform 41 can sway slightly back and forth and left and right.

[0041] How to use and how to work this device:

[0042] When in use, the sampling shell 1 is the main body, and the support component 2 and the soil floating component 3 work together to not only transport the soil sample to be tested for pesticide residues into the sampling shell 1 for collection, but also work with the support component 2, soil floating component 3 and other components to ensure that the soil is evenly delivered into the upper shell 11. Finally, the soil sample is collected in a bottle from the receiving hopper 13. After the soil sample for pesticide residue testing is bottled and the liquid for testing soil is added, it can also be inserted into the bottle positioning part 4 and work with the soil floating component 3 to continuously shake and keep the sample uniform.

[0043] Inside the sampling housing 1, the upper housing 11 and the lower housing 15 serve as the main body. A lower locking block 14 is added to the upper housing 11, which can cooperate with the support component 2 to achieve fixed installation and disassembly. The discharge screen 12 and the receiving hopper 13 on the upper housing 11 can cooperate with the internal soil floating component 3 to transport the soil up and then discharge it evenly from the discharge screen 12 into the receiving hopper 13. The soil is then collected and bottled through the receiving hopper 13. When in use, simply press the lower housing 15 down, insert the soil inserter 16 into the soil, and then activate the soil floating component 3 to start the operation. The shape of the soil inserter 16 can be matched with the lower housing 15 to achieve better and more stable entry.

[0044] Within the support assembly 2, the support frame 21 and the outer gear disk 24 serve as the main support. Multiple upper locking blocks 25 and lower locking blocks 14 on the outer gear disk 24 cooperate to achieve overall loading and unloading. In this assembly, the sampling shell 1 is the lower half, while the support assembly 2, the soil floating assembly 3, and the bottle positioning component 4 form the upper half. After removing the connection between the upper locking blocks 25 and the lower locking blocks 14, the support assembly 2, the soil floating assembly 3, and the bottle positioning component 4 can be pulled out from above. The outer gear disk 24, the driving gear 26, and the three driven gears 27 can rotate in conjunction with the driving gear 26 when the soil floating assembly 3 is working. This allows the bottle positioning component 4 to drive multiple sample soil bottles containing pesticide residues to be tested to rotate, ensuring that the sample soil bottles containing pesticide residues to be tested are mixed evenly. In addition, a support spring 22 and a rubber ball 23 are added to tap the sample soil bottles containing pesticide residues to be tested, improving the mixing efficiency.

[0045] Inside the soil floating assembly 3, the drive motor 31 and the connecting rod 32 work together to drive the auger 33 to rotate, which can transport the soil from below the soil inserting blade 16 to the upper shell 11. The scraper 34 can rotate and push the soil fed into the upper shell 11 and gradually squeeze it out from the discharge screen 12 into the receiving hopper 13. By adding filter screens of different densities on the discharge screen 12, impurities are left in the upper shell 11. In this way, the impurities collected from the receiving hopper 13 can be directly bottled.

[0046] The sample soil bottle containing pesticide residue to be tested is inserted into the three test bottle fixing parts within the bottle positioning part 4. Depending on the size of the bottle, the threaded rod 46 can be rotated to drive the clamping plate 47 to slide on the slide rail 42. When the support plate 48 is fixed, the threaded rod 46 drives the clamping plate 47 to move back and forth, which can adapt to different bottle sizes. The support platform 41, base 44, ball bearing 45 and multiple return springs 43 form a flexible structure. In this way, the sample soil bottle containing pesticide residue to be tested contacts the support spring 22 and rubber ball 23 more gently, preventing the sample soil bottle containing pesticide residue to be tested from being knocked off by the impact of the support spring 22 and rubber ball 23. With this structure, the support platform 41 can sway slightly back and forth and left and right.

[0047] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A sampling and preservation device for pesticide residue sample detection, characterized in that: The sample includes a sampling housing (1), a support assembly (2) is installed on the top of the sampling housing (1), a soil floating assembly (3) is installed on the support assembly (2), the bottom end of the soil floating assembly (3) penetrates and extends to the bottom of the sampling housing (1), the soil floating assembly (3) works with the sampling housing (1) to drill and collect soil samples to be tested, and multiple auxiliary support assemblies (2) and bottle positioning parts (4) for shaking the sample bottle are also installed on the soil floating assembly (3).

2. The sampling and preservation device for pesticide residue sample detection according to claim 1, characterized in that: The sampling housing (1) includes an upper housing (11) and a lower housing (15). The bottom of the upper housing (11) is fixed to the lower housing (15). A discharge screen (12) is installed on the upper housing (11), and a receiving hopper (13) is opened on the lower housing (15) to receive the test sample through the discharge screen (12).

3. The sampling and preservation device for pesticide residue sample detection according to claim 2, characterized in that: Multiple lower locking blocks (14) are installed on the upper shell (11), the bottom of the support assembly (2) is fixed to the receiving hopper (13) by multiple bottle positioning parts (4), and a soil inserting knife (16) is installed on the bottom of the lower shell (15).

4. The sampling and preservation device for pesticide residue sample detection according to claim 3, characterized in that: The support assembly (2) includes an outer gear disk (24), and three evenly distributed support frames (21) are installed on the top of the outer gear disk (24). The outer gear disk (24) is fixedly connected to the soil floating assembly (3) through the three support frames (21). Each of the three support frames (21) is equipped with a support spring (22), and each of the three support springs (22) is connected with a rubber ball (23). The outer gear disc (24) has three upper locking blocks (25) installed on its side, and the three upper locking blocks (25) engage with the adjacent lower locking blocks (14).

5. The sampling and preservation device for pesticide residue sample detection according to claim 4, characterized in that: The support assembly (2) also includes a drive gear (26) and three driven gears (27). The three bottle positioning parts (4) are all installed on the adjacent driven gears (27). The drive gear (26) meshes with the three driven gears (27), and the three driven gears (27) mesh with the inner wall of the outer gear disk (24).

6. The sampling and preservation device for pesticide residue sample detection according to claim 5, characterized in that: The soil floating component (3) includes a drive motor (31), which is fixed to the support component (2). The output shaft of the drive motor (31) is connected to a connecting rod (32) via a coupling. The bottom of the connecting rod (32) passes through the upper housing (11). An auger (33) is fixedly connected to the extension end of the connecting rod (32). The bottom end of the auger (33) extends to the bottom of the lower housing (15). The connecting rod (32) is equipped with a scraper (34), which is connected to the inner wall of the sampling housing (1), and the drive gear (26) is installed on the surface of the connecting rod (32).

7. The sampling and preservation device for pesticide residue sample detection according to claim 5, characterized in that: The bottle positioning component (4) includes a support platform (41), on the top of the support platform (41) are three ring-shaped detection bottle fixing components, and a base (44) is provided at the bottom of the support platform (41). A ball bearing (45) is installed on the base (44), and the ball bearing (45) makes rolling contact with the bottom of the support platform (41). The bottom of the support platform (41) is connected to a plurality of return springs (43), and the ends of the plurality of return springs (43) away from the support platform (41) are all connected to the driven gear (27).

8. The sampling and preservation device for pesticide residue sample detection according to claim 7, characterized in that: The test bottle fixing component includes a slide rail (42), a clamping plate (47) is slidably connected on the slide rail (42), a threaded rod (46) is rotatably connected on the clamping plate (47), a support plate (48) is installed on the top of the slide rail (42), and the support plate (48) is threadedly connected to the threaded rod (46).

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