A stratified sampling device

Abstract

The utility model discloses a stratified sampling device, which relates to the technical field of stratified sampling of food, and comprises a mounting plate, a mounting cylinder is fixedly connected to the top of the mounting plate, a driving motor is fixedly connected to the inside of the mounting cylinder, a first gear is fixedly connected to the output end of the driving motor, a rotating shaft is arranged inside the mounting cylinder, a second gear is fixedly connected to the outside of the top of the rotating shaft, the first gear meshes with the second gear, a connecting pipe is fixedly connected to the bottom of one end of the mounting plate, a sampling cylinder is fixedly connected to the bottom of the connecting pipe, one end of the rotating shaft passes through the connecting pipe and is rotatably connected to the bottom of the sampling cylinder, a plurality of chambers are provided inside the sampling cylinder, and a feed port is connected to the bottom of the plurality of chambers. The utility model can effectively improve the accuracy of the detection result of the sampling sample, and has the advantages of simple structure, convenient operation, time-saving and labor-saving, and strong practicality.

Description

Technical Field

[0001] The utility model relates to the technical field of food stratified sampling, in particular to a stratified sampling device. Background Art

[0002] The indicators of food inspection mainly include general component analysis, trace element analysis, pesticide residue analysis, veterinary drug residue analysis, mycotoxin analysis, food additive analysis and analysis of other harmful substances. According to the characteristics of the inspected items, the inspection of each indicator corresponds to the corresponding inspection method. For example, food condiments such as oil, vinegar, and soy sauce need to be tested regularly during the brewing process and strictly implemented according to the production process.

[0003] Currently, when sampling liquid food, since such food is generally packaged in barrels, the liquid at the bottom needs to be taken out for sampling. However, during this process, the sample at the bottom will be mixed with the samples in the middle and upper layers, resulting in inaccurate test results. Therefore, in order to solve the above problem, we propose a stratified sampling device. Utility Model Content

[0004] The utility model aims to solve the defects in the prior art and proposes a layered sampling device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A stratified sampling device comprises a mounting plate, the top of the mounting plate is fixedly connected to a mounting cylinder, the interior of the mounting cylinder is fixedly connected to a driving motor, the output end of the driving motor is fixedly connected to a first gear, a rotating shaft is provided inside the mounting cylinder, a second gear is fixedly connected to the outer side of the top of the rotating shaft, the first gear meshes with the second gear, a connecting pipe is fixedly connected to the bottom of one end of the mounting plate, a sampling cylinder is fixedly connected to the bottom of the connecting pipe, and one end of the rotating shaft passes through the connecting pipe and is rotatably connected to the bottom inside the sampling cylinder.

[0007] Furthermore, a plurality of chambers are provided inside the sampling cylinder, and the bottoms of the plurality of chambers are connected to feed ports.

[0008] Furthermore, a connecting plate is provided on the top of the interior of the chamber, one end of the connecting plate is fixedly connected to a sealing plate, and the other end of the connecting plate is fixedly connected to the outer side of the rotating shaft.

[0009] Furthermore, a controller is fixedly connected to the inside of the top of the installation tube, a control button is fixedly connected to the surface of the top of the installation tube, and the control button and the driving motor are electrically connected to the controller.

[0010] Furthermore, a handle is fixedly connected to one end of the mounting plate.

[0011] Compared with the prior art, the beneficial effect of the utility model is that: the present application only needs to put the sampling tube into the sample, and then start the driving motor, so that samples of different depths can flow into the corresponding chamber, and samples at different levels will not be mixed. The accuracy of the sampling sample detection results can be effectively improved, and the structure is simple, the operation is convenient, time-saving and labor-saving, and the practicability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a cross-sectional view of the utility model;

[0015] Figure 3 for Figure 2 A magnified view of the structure in part A.

[0016] In the figure: 1. Mounting plate; 2. Handle; 3. Mounting cylinder; 4. Control button; 5. Connecting tube; 6. Sampling cylinder; 7. Feed port; 8. Driving motor; 9. First gear; 10. Rotating shaft; 11. Second gear; 12. Controller; 13. Chamber; 14. Connecting plate; 15. Sealing plate. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention;

[0018] Reference Figure 1-3 A stratified sampling device includes a mounting plate 1, a mounting tube 3 is fixedly connected to the top of the mounting plate 1, a driving motor 8 is fixedly connected to the inside of the mounting tube 3, a first gear 9 is fixedly connected to the output end of the driving motor 8, a rotating shaft 10 is arranged inside the mounting tube 3, a second gear 11 is fixedly connected to the outer side of the top of the rotating shaft 10, the first gear 9 meshes with the second gear 11, a connecting tube 5 is fixedly connected to the bottom of one end of the mounting plate 1, a sampling tube 6 is fixedly connected to the bottom of the connecting tube 5, and one end of the rotating shaft 10 passes through the connecting tube 5 and is rotatably connected to the bottom of the sampling tube 6.

[0019] The sampling tube 6 has a plurality of chambers 13 formed inside, and the bottoms of the chambers 13 are connected to a feed port 7 . The length of each chamber 13 is determined by the depth of the sample to be sampled, and the feed port 7 is used for the sample to enter the respective chamber 13 .

[0020] A connecting plate 14 is provided at the top of the chamber 13, one end of the connecting plate 14 is fixedly connected to a sealing plate 15, and the other end of the connecting plate 14 is fixedly connected to the outer side of the rotating shaft 10. When the rotating shaft 10 rotates, it will drive the connecting plate 14 to rotate, and then rotate the sealing plate 15, so that the sealing plate 15 closes or opens the feed port 7.

[0021] A controller 12 is fixedly connected to the inside of the top of the mounting tube 3, and a control button 4 is fixedly connected to the surface of the top of the mounting tube 3. The control button 4 and the drive motor 8 are electrically connected to the controller 12. The operation of the drive motor 8 is controlled by the set control button 4, one of the control buttons 4 controls the drive motor 8 to rotate forward, and the other control button 4 controls the drive motor 8 to rotate reversely.

[0022] One end of the mounting plate 1 is fixedly connected with a handle 2, and the handle 2 is convenient for the user to hold the sampling device.

[0023] Working principle: Hold the mounting plate 1 by the handle 2, place the sampling tube 6 in the sample to be sampled, and then press the control button 4. The control button 4 sends an electrical signal to the controller 12. The controller 12 controls the driving motor 8 to operate. The driving motor 8 rotates forward, driving the first gear 9 to rotate. Since the first gear 9 engages the second gear 11, the rotating shaft 10 rotates. The rotating shaft 10 drives the sealing plate 15 to rotate through the connecting plate 14, opening the feed port 7. Samples of various depths will enter the corresponding chamber 13 through the feed port 7. After the sampling is completed, press the control button 4 again, and then drive the motor 8 to rotate forward, so that the sealing plate 15 closes the feed port 7, and the mounting plate 1 can be lifted to remove the sampling tube 6 from the sample.

Claims

1. A stratified sampling device, comprising a mounting plate (1), characterized in that: The top of the mounting plate (1) is fixedly connected to a mounting tube (3), the interior of the mounting tube (3) is fixedly connected to a driving motor (8), the output end of the driving motor (8) is fixedly connected to a first gear (9), a rotating shaft (10) is provided inside the mounting tube (3), the outer side of the top of the rotating shaft (10) is fixedly connected to a second gear (11), the first gear (9) meshes with the second gear (11), the bottom of one end of the mounting plate (1) is fixedly connected to a connecting tube (5), the bottom of the connecting tube (5) is fixedly connected to a sampling tube (6), one end of the rotating shaft (10) passes through the connecting tube (5) and is rotatably connected to the bottom of the sampling tube (6).

2. A stratified sampling device according to claim 1, characterized in that: A plurality of chambers (13) are provided inside the sampling tube (6), and the bottoms of the plurality of chambers (13) are all connected to a feed port (7).

3. A stratified sampling device according to claim 2, characterized in that: A connecting plate (14) is provided at the top of the chamber (13), one end of the connecting plate (14) is fixedly connected to a sealing plate (15), and the other end of the connecting plate (14) is fixedly connected to the outside of the rotating shaft (10).

4. A stratified sampling device according to claim 1, characterized in that: The interior of the top of the installation tube (3) is fixedly connected to a controller (12), the surface of the top of the installation tube (3) is fixedly connected to a control button (4), and the control button (4) and the drive motor (8) are both electrically connected to the controller (12).

5. A stratified sampling device according to claim 1, characterized in that: One end of the mounting plate (1) is fixedly connected to a handle (2).

Images