Rapid agricultural product sampling device based on centrifugal layering

Abstract

The utility model discloses a rapid agricultural product sampling device based on centrifugal layering, and relates to the technical field of agricultural production. The positioning mechanism is arranged on the centrifugal tube; the sampling mechanism is arranged on the positioning mechanism and used for sampling the agricultural products subjected to centrifugal layering, the sampling mechanism comprises a lower sampling box and an upper sampling box, the upper sampling box is arranged on the positioning mechanism, and the lower sampling box is arranged at the bottom of the upper sampling box. According to the rapid agricultural product sampling device based on centrifugal layering, through the use of the sampling mechanism, corresponding adjustment can be performed according to the number of layers, and meanwhile, independent sampling is performed, so that different layers do not influence one another, and the sampling accuracy is ensured; the distance between the two independent sampling boxes can be adjusted according to the position of layered liquid, and the situation that the two sampling boxes are too far or too close to each other, and the sampling effect is affected is avoided.

Description

Technical Field

[0001] This utility model relates to the field of agricultural production technology, specifically to a rapid sampling device for agricultural products based on centrifugal stratification. Background Technology

[0002] Centrifugal stratification technology uses centrifugal force to separate components of different densities. In agricultural product testing, a centrifuge is used to rotate the sample at high speed, causing components of different densities, such as solid particles, liquids, and gases, to separate into layers. Centrifugal stratification sampling technology for agricultural products is a pretreatment method used for detecting pesticide residues and analyzing components in agricultural products.

[0003] The authorized publication number "CN208688837U" describes "an agricultural product sampling device, including a column, an annular cutter head, a push handle, a sampling cylinder, a bottom plate groove, a shaft protrusion, a sampling groove, a rotating shaft, a shaft groove, a sampling cylinder groove, a bottom plate, and a shaft hole. The top of the column is threadedly connected to the push handle, and the bottom of the column is provided with an annular cutter head, which is integrally connected to the column. A sampling cylinder groove is provided inside the column, and a sampling cylinder is installed inside the sampling cylinder groove. A shaft protrusion is provided on the side wall of the sampling cylinder, and a shaft hole is provided inside the shaft protrusion. The rotating shaft is embedded in the shaft hole, thereby connecting the sampling groove and the sampling cylinder. The sampling groove rotates around the rotating shaft. Three sampling grooves are equally spaced on the sampling cylinder. A bottom plate groove is provided at the bottom of each sampling groove, and the bottom plate is embedded in the bottom plate groove, thereby separating the samples in the sampling groove. The agricultural product sampling device designed by this utility model is convenient and simple to operate, highly practical, and safe and reliable."

[0004] The above-mentioned patent is convenient and simple to operate, highly practical, safe and reliable. However, during use, the device cannot be connected to the centrifuge tube to ensure stability during the sampling process. At the same time, the positions of different sampling boxes cannot be adjusted according to the positions of the liquids after centrifugation to ensure sampling accuracy. Utility Model Content

[0005] This invention provides a rapid sampling device for agricultural products based on centrifugal stratification. The sampling mechanism can be adjusted according to the number of strata. At the same time, independent sampling ensures that different strata do not affect each other and guarantees the accuracy of sampling. The positioning mechanism can adjust the distance between two independent sampling boxes according to the position of the stratified liquids, avoiding the two sampling boxes being too far apart or too close, which would affect the sampling effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rapid sampling device for agricultural products based on centrifugal stratification, comprising:

[0007] Centrifuge tubes;

[0008] The positioning mechanism is located on the centrifuge tube;

[0009] A sampling mechanism is provided on a positioning mechanism for sampling agricultural products after centrifugation and stratification. The sampling mechanism includes a lower sampling box and an upper sampling box. The upper sampling box is provided on the positioning mechanism, and the lower sampling box is provided at the bottom of the upper sampling box. Sampling ports are provided on one side of the outer surface of both the lower sampling box and the upper sampling box.

[0010] The sealing mechanism comprises two sets, each set being disposed on a lower sampling box and an upper sampling box respectively, for sealing after sampling using the lower and upper sampling boxes; and

[0011] The adjustment mechanism has two sets, both of which are located on the upper sampling box and connected to the lower sampling box. The adjustment is made by adjusting the distance between the upper and lower sampling boxes. Each set of adjustment mechanisms includes a guide component and an adjustment telescopic rod. The guide component is located on the upper sampling box and connected to the lower sampling box. The adjustment telescopic rod is located inside the guide component and connected to the lower sampling box.

[0012] Furthermore, the positioning mechanism includes a support rod, a height adjustment rod, and two sets of extension components. The support rod is installed on the top of the centrifuge tube, the height adjustment rod is movably connected inside the support rod, and both sets of extension components are located on the support rod.

[0013] Furthermore, each set of the extension components includes a supporting telescopic rod and a fastener, wherein the supporting telescopic rod is movably connected inside the support rod, and the fastener is fixedly connected to one end of the supporting telescopic rod.

[0014] Furthermore, each of the aforementioned closure mechanisms includes a sealing plate and a control component, wherein the control component is disposed on the lower sampling box and the sealing plate is disposed on the control component.

[0015] Furthermore, the control component includes a groove and two closed telescopic rods. The groove is opened inside the lower sampling box, the sealing plate is slidably connected to the groove, and both closed telescopic rods are fixedly connected to the lower sampling box, with the tops of both closed telescopic rods fixedly connected to the sealing plate.

[0016] Furthermore, the guide component includes a limiting strip and a limiting cover. The limiting strip is fixedly connected to one side of the outer surface of the upper sampling box, and the limiting cover is fixedly connected to one side of the outer surface of the lower sampling box, and the limiting cover is movably sleeved on the limiting strip.

[0017] This invention provides a rapid sampling device for agricultural products based on centrifugal stratification. It features the following:

[0018] Beneficial effects:

[0019] (1) The rapid sampling device for agricultural products based on centrifugal stratification can be adjusted according to the number of strata through the use of the sampling mechanism. At the same time, independent sampling ensures that different strata do not affect each other and guarantees the accuracy of sampling.

[0020] (2) The rapid sampling device for agricultural products based on centrifugal stratification can adjust the distance between two independent sampling boxes by using the adjustment mechanism, so as to adjust the distance according to the position of the stratified liquid, and avoid the two sampling boxes being too far apart or too close, which would affect the sampling effect. Attached Figure Description

[0021] Figure 1 This is a partial sectional view of the present invention;

[0022] Figure 2 This is a perspective view of the present utility model;

[0023] Figure 3 This is an exploded cross-sectional view of the sampling mechanism of this utility model;

[0024] Figure 4 This is an exploded view of the sampling mechanism of this utility model.

[0025] In the diagram: 1. Centrifuge tube; 2. Support telescopic rod; 3. Support rod; 4. Fastener; 5. Height adjustment rod; 6. Limiting strip; 7. Adjusting telescopic rod; 8. Limiting cover; 9. Sealing plate; 10. Embedded groove; 11. Lower sampling box; 12. Sampling port; 13. Upper sampling box; 14. Enclosed telescopic rod. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0027] Please see Figure 1-4 This utility model provides a technical solution: a rapid sampling device for agricultural products based on centrifugal stratification, comprising:

[0028] Centrifuge tube 1;

[0029] A positioning mechanism is located on centrifuge tube 1;

[0030] The sampling mechanism is located on the positioning mechanism and is used to sample agricultural products after centrifugation and stratification. The sampling mechanism includes a lower sampling box 11 and an upper sampling box 13. The upper sampling box 13 is located on the positioning mechanism, and the lower sampling box 11 is located at the bottom of the upper sampling box 13. A sampling port 12 is provided on one side of the outer surface of both the lower sampling box 11 and the upper sampling box 13.

[0031] The sealing mechanism comprises two sets, respectively located on the lower sampling box 11 and the upper sampling box 13, for sealing after sampling from the lower sampling box 11 and the upper sampling box 13; and

[0032] The adjustment mechanism has two sets, both of which are located on the upper sampling box 13 and connected to the lower sampling box 11. The adjustment is made by the distance between the upper sampling box 13 and the lower sampling box 11. Each adjustment mechanism includes a guide component and an adjustment telescopic rod 7. The guide component is located on the upper sampling box 13 and connected to the lower sampling box 11. The adjustment telescopic rod 7 is located inside the guide component and connected to the lower sampling box 11.

[0033] In this implementation scheme: the lower sampling box 11 and the upper sampling box 13 have the same structure but different orientations to reduce interference during the sampling process. The model of the adjustment telescopic rod 7 can be selected from those available on the market as needed, which will not be elaborated here. The distance between the lower sampling box 11 and the upper sampling box 13 is controlled by the extension and retraction of the adjustment telescopic rod 7 to adapt to the position of the layered liquid. During use, the corresponding adjustment can be made according to the number of layers to achieve the corresponding sampling.

[0034] Specifically, the positioning mechanism includes a support rod 3, an adjustment rod 5, and two sets of extension components. The support rod 3 is installed on the top of the centrifuge tube 1, the adjustment rod 5 is movably connected inside the support rod 3, and both sets of extension components are located on the support rod 3.

[0035] In this embodiment: the support rod 3 enables the height adjustment rod 5 to be installed on the centrifuge tube 1. The height adjustment rod 5 is raised and lowered on the support rod 3, so that the sampling box is raised and lowered inside the centrifuge tube 1 and enters the stratified liquid.

[0036] Specifically, each set of extension components includes a support telescopic rod 2 and a buckle 4. The support telescopic rod 2 is movably connected inside the support rod 3, and the buckle 4 is fixedly connected to one end of the support telescopic rod 2.

[0037] In this embodiment: the support telescopic rod 2 extends the length of the support rod 3 to adapt to centrifuge tubes 1 of different diameters, and the fastener 4 fastens the support telescopic rod 2 onto the centrifuge tube 1 to complete the use.

[0038] Specifically, each group of sealing mechanisms includes a sealing plate 9 and a control component. The control component is located on the lower sampling box 11, and the sealing plate 9 is located on the control component.

[0039] In this embodiment, the sealing plate 9 seals the sampling port 12 to prevent liquid mixing during the extraction process.

[0040] Specifically, the control components include a groove 10 and two closed telescopic rods 14. The groove 10 is opened in the lower sampling box 11, and the sealing plate 9 is slidably connected in the groove 10. The two closed telescopic rods 14 are fixedly connected in the lower sampling box 11, and the tops of the two closed telescopic rods 14 are fixedly connected to the sealing plate 9.

[0041] In this embodiment, the model of the closed telescopic rod 14 can be selected from those available on the market as needed, which will not be elaborated on here. By extending and retracting the closed telescopic rod 14, the position of the sealing plate 9 can be adjusted to complete the use.

[0042] Specifically, the guide components include a limiting strip 6 and a limiting cover 8. The limiting strip 6 is fixedly connected to one side of the outer surface of the upper sampling box 13, and the limiting cover 8 is fixedly connected to one side of the outer surface of the lower sampling box 11. The limiting cover 8 is movably sleeved on the limiting strip 6.

[0043] In this embodiment, the limiting bar 6 and the limiting cover 8 control the path of the lower sampling box 11 relative to the upper sampling box 13.

[0044] In use, adjust the position of the two support telescopic rods 2 relative to the support rod 3 according to the diameter of the centrifuge tube 1, and use the fastener 4 to stably install the device on the centrifuge tube 1. At the same time, select the number of sampling boxes according to the number of layers, and adjust the distance between different sampling boxes according to the height of the layers. During adjustment, extend and retract the adjustment telescopic rod 7 to control the movement of the sampling box to adapt to the use. Lower the sampling box by adjusting the height rod 5 to enter the sampling position. Close the telescopic rod 14 to control the sealing plate 9 to descend, and let the sampled liquid enter the sampling box through the sampling port 12. After completion, close the telescopic rod 14 to control the sealing plate 9 to rise and seal the sampling box, thus completing the sampling.

[0045] The control method of this utility model is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

[0046] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A rapid sampling device for agricultural products based on centrifugal stratification, characterized in that, include: Centrifuge tube (1); The positioning mechanism is located on the centrifuge tube (1); A sampling mechanism is provided on the positioning mechanism for sampling agricultural products after centrifugation and stratification. The sampling mechanism includes a lower sampling box (11) and an upper sampling box (13). The upper sampling box (13) is provided on the positioning mechanism, and the lower sampling box (11) is provided at the bottom of the upper sampling box (13). A sampling port (12) is provided on one side of the outer surface of both the lower sampling box (11) and the upper sampling box (13). The sealing mechanism comprises two sets, which are respectively located on the lower sampling box (11) and the upper sampling box (13), and are sealed after sampling by the lower sampling box (11) and the upper sampling box (13); and The adjustment mechanism has two sets, both of which are located on the upper sampling box (13) and connected to the lower sampling box (11). The distance between the upper sampling box (13) and the lower sampling box (11) is adjusted. Each set of adjustment mechanisms includes a guide component and an adjustment telescopic rod (7). The guide component is located on the upper sampling box (13) and connected to the lower sampling box (11). The adjustment telescopic rod (7) is located inside the guide component and connected to the lower sampling box (11).

2. The rapid sampling device for agricultural products based on centrifugal stratification according to claim 1, characterized in that, The positioning mechanism includes a support rod (3), a height adjustment rod (5), and two sets of extension components. The support rod (3) is installed on the top of the centrifuge tube (1), the height adjustment rod (5) is movably connected inside the support rod (3), and the two sets of extension components are both located on the support rod (3).

3. The rapid sampling device for agricultural products based on centrifugal stratification according to claim 2, characterized in that, Each set of the extension components includes a support telescopic rod (2) and a buckle (4). The support telescopic rod (2) is movably connected inside the support rod (3), and the buckle (4) is fixedly connected to one end of the support telescopic rod (2).

4. The rapid sampling device for agricultural products based on centrifugal stratification according to claim 3, characterized in that, Each of the aforementioned closure mechanisms includes a sealing plate (9) and a control component, wherein the control component is located on the lower sampling box (11) and the sealing plate (9) is located on the control component.

5. The rapid sampling device for agricultural products based on centrifugal stratification according to claim 4, characterized in that, The control component includes a groove (10) and two closed telescopic rods (14). The groove (10) is opened in the lower sampling box (11). The sealing plate (9) is slidably connected in the groove (10). The two closed telescopic rods (14) are fixedly connected in the lower sampling box (11), and the tops of the two closed telescopic rods (14) are fixedly connected to the sealing plate (9).

6. The rapid sampling device for agricultural products based on centrifugal stratification according to claim 5, characterized in that, The guide component includes a limiting strip (6) and a limiting cover (8). The limiting strip (6) is fixedly connected to one side of the outer surface of the upper sampling box (13), and the limiting cover (8) is fixedly connected to one side of the outer surface of the lower sampling box (11). The limiting cover (8) is movably sleeved on the limiting strip (6).

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