A real-time monitoring sampling device for storage quality of rice in cold regions

Abstract

This invention relates to the field of rice storage, and more particularly to a sampling device for real-time monitoring of the storage quality of rice in cold regions. The device involves vertically inserting a tube into a rice pile. Each layer of the rice pile is then loaded into the sampling chamber of the tube while maintaining its original distribution. A partition plate separates the rice pile layers within the sampling chamber, preserving their current distribution and completing the sampling process. Furthermore, an extraction tube, through a moisture-absorbing and breathable component, can extract the ambient gas surrounding each layer of the rice pile, indicating the moisture content of the air in each layer. This invention solves the technical problems of existing sampling equipment being unable to penetrate the entire rice pile for three-dimensional sampling, and the destruction of the original layered distribution characteristics of the rice pile during sampling, thus affecting the accuracy of sample testing.

Description

Technical Field

[0001] This invention relates to the field of rice storage, and more particularly to a sampling device for real-time monitoring of the storage quality of rice in cold regions. Background Technology

[0002] During the storage of rice in cold regions, the quality of rice is highly sensitive to humidity, temperature, and microbial activity under low-temperature conditions, and its quality can easily undergo subtle but rapid changes. The vertical stratification of the rice pile creates a gradient distribution of its internal environment. The top of the rice pile is significantly affected by the external temperature, while the bottom is more significantly affected by the compaction effect. Furthermore, the extremely low thermal conductivity leads to a lag in internal heat transfer. Therefore, it is necessary to establish a scientific sampling frequency and time point to achieve real-time monitoring and accurate assessment of key indicators such as moisture content and the degree of mold growth in the rice storage environment. This will guide intervention measures such as turning, ventilation, or temperature control to ensure food safety. Current sampling methods... The equipment cannot meet the stringent requirements of stratified sampling. Traditional sampling equipment usually adopts single-point or single-layer sampling, which cannot penetrate the entire rice pile for three-dimensional sampling. This will result in the collected samples only representing the local environment, lacking representativeness, and failing to reflect potential blind spots in the middle and bottom of the rice pile. In addition, existing sampling equipment often disturbs the structure of the rice pile during sampling, causing rice samples from different layers to mix in the sampling tube, destroying the original stratified distribution characteristics. This sample mixing phenomenon seriously weakens the accuracy and reliability of the sampling data, distorts the subsequent quality analysis results, and fails to provide an effective basis for scientific decision-making, thus affecting the refined management of grain reserves. Summary of the Invention

[0003] In order to overcome the shortcomings of existing sampling equipment that cannot penetrate the entire rice pile for three-dimensional sampling and that the sampling process will destroy the original hierarchical distribution characteristics of the rice pile and affect the authenticity of the sample test, this invention provides a sampling device for real-time monitoring of the storage quality of rice in cold regions.

[0004] The technical implementation of this invention is as follows: A sampling device for real-time monitoring of the storage quality of rice in cold regions includes an insertion tube, an extraction tube, a moisture-absorbing and breathable component, a partition plate, and a push plate; a sampling chamber structure for collecting rice samples is opened on the front side of the insertion tube; an air delivery chamber for conveying airflow to the rice storage environment is opened on the rear side of the insertion tube; several air inlet micropore structures communicating with the sampling chamber are opened on the front side of the insertion tube; an extraction tube is fixedly connected to the air delivery chamber of the insertion tube; several suction holes communicating with the air delivery chamber are opened on the extraction tube; the insertion tube... The device is equipped with a moisture-absorbing and breathable component for absorbing moisture in the airflow, and the moisture-absorbing and breathable component is located between the sampling chamber and the gas delivery chamber; the left side of the insertion tube is slidably connected to a partition plate corresponding to the number and position of the air inlet micropores, and the partition plate is aligned with the bottom of the corresponding air inlet micropores; the right side of the insertion tube is also slidably connected to a partition plate corresponding to the number and position of the air inlet micropores, and the left partition plate is at the same height as the corresponding right partition plate; a push plate is slidably connected to the left and right sides of the insertion tube, and the push plate is in close contact with the partition plate on the same side.

[0005] Furthermore, two pressure handles are fixed to the cannula on the left and right.

[0006] Furthermore, the moisture-absorbing and breathable component consists of an insert plate, a cover plate, and a moisture-absorbing and breathable sheet; the insert plate is installed inside the insert tube; the cover plate is placed on top of the insert plate; the moisture-absorbing and breathable sheet is placed between the insert plate and the cover plate; the insert plate has a number of first microporous structures that connect to the air delivery chamber; the cover plate has a number of second microporous structures that connect to the sampling chamber.

[0007] Furthermore, the moisture-absorbing and breathable sheet is coated with a color-developing agent that changes color upon contact with water.

[0008] Furthermore, the cannula is made of a transparent material.

[0009] Furthermore, a central rotating rod is rotatably connected inside the tube; several stirring blades are fixedly arranged in an aligned manner along the vertical direction on the central rotating rod.

[0010] Furthermore, the partition plate has several groove structures that are adapted to the central rotating rod structure.

[0011] Furthermore, a temperature sensor for monitoring the storage environment temperature is installed on the tube; a battery module for powering the temperature sensor is installed on the tube; and a display screen for displaying the temperature sensor readings is installed on the battery module.

[0012] Furthermore, a humidity sensor for monitoring the humidity of the storage environment is installed at the lower end of the central rotating rod. The battery module supplies power to the humidity sensor, and the display screen also shows the measurement reading of the humidity sensor.

[0013] Furthermore, a lever is fixed to the humidity sensor.

[0014] The beneficial effects of this invention are as follows: This invention provides a real-time monitoring and sampling device for the storage quality of rice in cold regions. The device includes a sampling chamber and a gas delivery chamber within an insertion tube. A moisture-absorbing and breathable component is installed between the sampling chamber and the gas delivery chamber. After the insertion tube is vertically inserted into a rice pile, each layer of the rice pile can be loaded into the sampling chamber while maintaining its original distribution. A partition plate then separates the rice pile layers within the sampling chamber, preserving the current distribution of each layer and completing the sampling process. Furthermore, the device allows for the extraction of ambient gas from each layer of the rice pile through the moisture-absorbing and breathable component, indicating the moisture content of the ambient gas in each layer. This invention solves the technical problem that existing sampling equipment cannot penetrate the entire rice pile for three-dimensional sampling, and that the sampling process disrupts the original layered distribution characteristics of the rice pile, affecting the accuracy of sample testing. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is a three-dimensional schematic diagram of the upper region of the cannula in this invention; Figure 3 This is a three-dimensional schematic diagram of the upper region of the extraction pipe of the present invention; Figure 4 This is a three-dimensional cross-sectional view of the upper region of the cannula in this invention; Figure 5 This is a three-dimensional cross-sectional view of the lower region of the cannula in this invention; Figure 6 This is a three-dimensional cross-sectional view of the moisture-absorbing and breathable component of the present invention; Figure 7 This is a three-dimensional schematic diagram of the partition plate of the present invention; Figure 8 This is a three-dimensional schematic diagram of the humidity sensor of the present invention.

[0016] Reference numerals: 1-Insertion tube, 101-Sampling chamber, 102-Gas delivery chamber, 103-Inlet micropore, 11-Pressure handle, 13-Battery module, 14-Display screen, 2-Suction tube, 201-Suction hole, 3-Moisture-absorbing and breathable component, 301-First micropore, 302-Second micropore, 31-Insertion plate, 32-Cover plate, 33-Moisture-absorbing and breathable sheet, 41-Separator plate, 4101-Groove, 42-Push plate, 43-Central rotating rod, 44-Stirring blade, 5-Temperature sensor, 6-Humidity sensor, 61-Paddle. Detailed Implementation

[0017] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0018] Example 1: A sampling device for real-time monitoring of the storage quality of rice from cold regions, such as... Figures 1-7 As shown, the device includes an insertion tube 1, a pressure handle 11, an air extraction tube 2, a moisture-absorbing and breathable component 3, a partition plate 41, and a push plate 42. Two pressure handles 11 are fixedly connected to the insertion tube 1. A sampling chamber 101 is formed on the front side of the insertion tube 1. An air delivery chamber 102 is formed on the rear side of the insertion tube 1. Several air inlet micro-holes 103 communicating with the sampling chamber 101 are formed on the front side of the insertion tube 1. An air extraction tube 2 is fixedly connected to the air delivery chamber 102 of the insertion tube 1. Several suction holes 201 communicating with the air delivery chamber 102 are formed on the air extraction tube 2. A moisture-absorbing and breathable component 3 is installed inside the insertion tube 1, and the moisture-absorbing and breathable component 3 is located within the sampling chamber. Between sampling chamber 101 and air delivery chamber 102, the airflow entering sampling chamber 101 can pass through moisture-absorbing and breathable component 3 and flow to air delivery chamber 102; a partition plate 41 corresponding to the number and position of air inlet micropores 103 is slidably connected to the left side of the insertion tube 1, and the partition plate 41 is aligned with the lower part of the corresponding air inlet micropore 103; a partition plate 41 corresponding to the number and position of air inlet micropores 103 is also slidably connected to the right side of the insertion tube 1, and the left partition plate 41 and the right partition plate 41 are at the same height; a push plate 42 is slidably connected to the left and right sides of the insertion tube 1, and the push plate 42 is in close contact with all the partition plates 41 on the same side.

[0019] like Figures 4-6 As shown, the moisture-absorbing and breathable component 3 consists of an insert plate 31, a cover plate 32, and a moisture-absorbing and breathable sheet 33; the insert plate 31 is provided inside the insert tube 1; the cover plate 32 is placed on the insert plate 31; the moisture-absorbing and breathable sheet 33 is placed between the insert plate 31 and the cover plate 32; the moisture-absorbing and breathable sheet 33 is coated with a color-developing agent coating that changes color when exposed to water; the insert plate 31 has a plurality of first micropores 301 structures that connect to the air delivery chamber 102; the cover plate 32 has a plurality of second micropores 302 structures that connect to the sampling chamber 101.

[0020] The color-developing agent coating used in this embodiment is blue anhydrous cobalt chloride. When the anhydrous cobalt chloride comes into contact with a small amount of moisture adsorbed on the moisture-absorbing and breathable sheet 33, the color of the anhydrous cobalt chloride will turn pink. When the anhydrous cobalt chloride comes into contact with a large amount of moisture adsorbed on the moisture-absorbing and breathable sheet 33, the color of the hydrated cobalt chloride will turn purplish-red. The moisture content of the corresponding area on the moisture-absorbing and breathable sheet 33 can be roughly judged based on the color change of the anhydrous cobalt chloride in each layer.

[0021] When using the sampling device for real-time monitoring of cold-region rice storage quality in this embodiment, first connect the suction pipe 2 to the suction end of the gas suction device, and connect the gas collection container to the outlet end of the gas suction device. Then, the user holds the handle 11 and inserts the insertion tube 1 vertically downward into the rice pile, so that the rice sample is loaded into the sampling chamber 101 of the insertion tube 1 while maintaining its original distribution. After that, the user pushes the two push plates 42 on the left and right to drive all the partition plates 41 into the sampling chamber 101 of the insertion tube 1. The two partition plates 41 on the left and right together separate the rice sample in the sampling chamber 101, so that the rice sample is in an independent and separated state.

[0022] The user then activates the external gas extraction device. The external gas extraction device extracts gas through the extraction holes 201 of the extraction pipe 2 into the gas delivery chamber 102 of the insertion pipe 1. The ambient gas in each layer of the rice pile is drawn into the sampling chamber 101 through the corresponding inlet micro-holes 103 on the insertion pipe 1. The airflow passes sequentially through the second micro-hole 302 of the cover plate 32, the moisture-absorbing and breathable sheet 33, the first micro-hole 301 of the insertion plate 31, the gas delivery chamber 102, the extraction holes 201, and the extraction pipe 2, and is then drawn into the external gas collection container by the external gas extraction device. In subsequent testing steps, the user can transfer the collected ambient gas from inside the rice pile to the gas detection equipment for analysis. The contents of components such as carbon dioxide are tested to determine whether the contents of gaseous components such as carbon dioxide exceed the standard. In addition, when the ambient gas in each layer of the rice pile is drawn through the corresponding layer of the moisture-absorbing and breathable sheet 33, the moisture-absorbing and breathable sheet 33 will filter and absorb the moisture carried in the airflow. When the color-developing agent coating in this area of ​​the moisture-absorbing and breathable sheet 33 absorbs moisture, a color change phenomenon will occur. In subsequent testing steps, the user can pull the moisture-absorbing and breathable component 3 out of the insertion tube 1 and remove the cover plate 32 of the moisture-absorbing and breathable component 3 from the insertion plate 31 to directly observe the color change phenomenon on the moisture-absorbing and breathable sheet 33. The moisture content of the ambient gas in the corresponding layer of the rice pile can be determined by the color change phenomenon of different layers of the moisture-absorbing and breathable sheet 33.

[0023] After collecting ambient gases from each layer of the rice pile, the user shuts off the external gas extraction device. At this point, the rice samples, maintaining their original distribution and independent separation, are loaded into the sampling chamber 101 of the insertion tube 1. The user then pulls the insertion tube 1, containing the rice samples, upwards from the rice pile to complete the rice sampling. The user prepares multiple rice sample containers and reverses the push plate 42 to move away from all the partition plates 41, keeping the partition plates separated between the rice sample layers within the sampling chamber 101. The user then aligns the lower end of the insertion tube 1 with the first rice sample container and pulls the two partition plates 41 on the lower side of the insertion tube 1 away from the sampling chamber 101. The rice sample located in the lower first layer of the sampling chamber 101... The rice sample, no longer obstructed by the partition plate 41, falls directly downwards onto the first rice sample container. The user then aligns the lower end of the insertion tube 1 with the second rice sample container, pulls the two partition plates 41 on the lower side of the insertion tube 1 away from the sampling chamber 101, allowing the rice sample in the lower second layer of the sampling chamber 101 to fall downwards onto the second rice sample container. This process is repeated to sequentially distribute the rice samples from each layer of the sampling chamber 101 into different rice sample containers, avoiding excessive mixing between the rice samples from different layers. Finally, the user carefully observes the rice samples in each container using monitoring equipment or by visual inspection to check for moisture, mold, or other problems, thus achieving real-time monitoring of the surface quality of the rice samples in each layer.

[0024] Example 2, based on Example 1 above, as follows: Figures 1-7As shown, a central rotating rod 43 is rotatably connected inside the insertion tube 1; each partition plate 41 has several grooves 4101 structures adapted to the structure of the central rotating rod 43; several stirring blades 44 are fixedly connected to the front side of the central rotating rod 43 along the vertical direction, and all the stirring blades 44 on the front side are aligned vertically along the same straight line; several stirring blades 44 are also fixedly connected to the rear side of the central rotating rod 43 along the vertical direction, and all the stirring blades 44 on the rear side are aligned vertically along the same straight line; after the user inserts the insertion tube 1 into the rice pile to complete the sampling according to the steps of the above embodiment, the rice sample is collected into the sampling chamber 101 of the insertion tube 1. Since the stirring blades 44 are relatively flat and aligned vertically, the obstruction of the stirring blades 44 when the rice enters the sampling chamber 101 is negligible. The user uses the partition plate 41 to layer the rice in the sampling chamber 101 according to the above steps, and then the user fills the sampled rice with the rice. The sample tube 1 is pulled upwards from the rice pile. At this time, the user can directly observe whether the rice inside the sampling chamber 101 is damp or moldy through the tube 1. The user can also turn the central rotating rod 43 to drive the stirring blade 44 to rotate back and forth inside the sampling chamber 101. The stirring blade 44 continuously stirs the rice sample inside the sampling chamber 101, allowing the user to directly observe whether the rice in multiple areas inside the sampling chamber 101 is damp or moldy through the tube 1. Afterwards, if the user confirms that the rice is fine, the user pulls the partition plate 41 away from the sampling chamber 101 of the tube 1, allowing the rice in the sampling chamber 101 to fall directly into the rice pile without being blocked by the partition plate 41. This allows the user to quickly complete the real-time monitoring of the surface quality of the rice without having to pour the rice inside the tube 1 into the collection container, meeting the user's need to quickly check multiple areas of the rice in a short period of time.

[0025] Example 3, based on Example 1 above, as follows: Figures 1-8As shown, a temperature sensor 5 is installed on the insertion tube 1; a battery module 13 is installed on the insertion tube 1, and the battery module 13 supplies power to the temperature sensor 5; a display screen 14 is installed on the battery module 13; a humidity sensor 6 is installed at the lower end of the central rotating rod 43, and the battery module 13 supplies power to the humidity sensor 6; a lever 61 is fixedly connected to the humidity sensor 6; when the user inserts the insertion tube 1 into the rice pile for sampling according to the steps of the above embodiment, the temperature sensor 5 detects the ambient temperature of the rice pile, and the detection data of the temperature sensor 5 is displayed on the display screen 14. The user continues to insert the insertion tube 1 into the rice pile. When the humidity sensor 6 at the lower end of the central rotating rod 43 contacts the bottom of the rice pile, the humidity sensor 6 is subjected to the bottom of the rice pile. Due to the obstruction of the part, the user cannot continue to push the insertion tube 1 downward. At this time, the user continues to rotate the central rotating rod 43 back and forth. The central rotating rod 43 drives the humidity sensor 6 and the lever 61 at the lower end to rotate back and forth. The lever 61 pushes the rice accumulated around the humidity sensor 6 to the surrounding areas. If the humidity on the ground at the bottom of the rice pile or between the bottom of the rice pile is high, so that there may be water accumulation, the water will be squeezed out and flow to the bottom of the humidity sensor 6 the moment the lever 61 pushes the rice away. The humidity sensor 6 can detect the high humidity state at the first time and display the detection data on the display screen 14 to inform the user that there may be water accumulation. This realizes the detection of the ambient temperature and humidity inside the rice pile.

[0026] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A sampling device for real-time monitoring of the storage quality of rice in cold regions, comprising a tube (1); characterized in that: It also includes an air extraction tube (2), a moisture-absorbing and breathable component (3), a partition plate (41), and a push plate (42); a sampling chamber (101) for collecting rice samples is provided on the front side of the insertion tube (1); a gas delivery chamber (102) for conveying airflow in the rice storage environment is provided on the rear side of the insertion tube (1); several air inlet micropores (103) communicating with the sampling chamber (101) are provided on the front side of the insertion tube (1); an air extraction tube (2) is fixedly connected to the gas delivery chamber (102) of the insertion tube (1); several suction holes (201) communicating with the gas delivery chamber (102) are provided on the air extraction tube (2); and a moisture-absorbing component for adsorbing moisture in the airflow is provided inside the insertion tube (1). The ventilation component (3) is located between the sampling chamber (101) and the air delivery chamber (102); the left side of the insertion tube (1) is slidably connected to a partition plate (41) corresponding to the number and position of the air inlet microholes (103), and the partition plate (41) is aligned with the lower part of the corresponding air inlet microholes (103); the right side of the insertion tube (1) is also slidably connected to a partition plate (41) corresponding to the number and position of the air inlet microholes (103), and the left partition plate (41) and the right partition plate (41) are at the same height; the left and right sides of the insertion tube (1) are each slidably connected to a push plate (42), and the push plate (42) is close to the partition plate (41) on the same side.

2. The sampling device for real-time monitoring of the storage quality of cold-region rice according to claim 1, characterized in that: Two pressure handles (11) are fixedly connected to the cannula (1) on the left and right.

3. The sampling device for real-time monitoring of the storage quality of cold-region rice according to claim 1, characterized in that: The moisture-absorbing and breathable component (3) consists of an insert plate (31), a cover plate (32), and a moisture-absorbing and breathable sheet (33); the insert plate (31) is provided inside the insert tube (1); the cover plate (32) is provided on the insert plate (31); the moisture-absorbing and breathable sheet (33) is provided between the insert plate (31) and the cover plate (32); the insert plate (31) has a number of first micropores (301) structures that connect to the air delivery chamber (102); the cover plate (32) has a number of second micropores (302) structures that connect to the sampling chamber (101).

4. The sampling device for real-time monitoring of the storage quality of cold-region rice according to claim 3, characterized in that: The moisture-absorbing and breathable sheet (33) is coated with a color-developing agent that changes color when it comes into contact with water.

5. The sampling device for real-time monitoring of the storage quality of cold-region rice according to claim 1, characterized in that: The cannula (1) is made of transparent material.

6. The sampling device for real-time monitoring of the storage quality of cold-region rice according to claim 5, characterized in that: A central rotating rod (43) is rotatably connected inside the insertion tube (1); several stirring blades (44) are fixedly connected to the central rotating rod (43) in an aligned manner along the vertical direction.

7. The sampling device for real-time monitoring of the storage quality of cold-region rice according to claim 6, characterized in that: The partition plate (41) has several grooves (4101) that are adapted to the structure of the central rotating rod (43).

8. The sampling device for real-time monitoring of the storage quality of cold-region rice according to claim 6, characterized in that: A temperature sensor (5) for monitoring the storage environment temperature is installed on the insertion tube (1); a battery module (13) for powering the temperature sensor (5) is installed on the insertion tube (1); and a display screen (14) for displaying the measurement reading of the temperature sensor (5) is installed on the battery module (13).

9. The sampling device for real-time monitoring of the storage quality of cold-region rice according to claim 8, characterized in that: A humidity sensor (6) for monitoring the humidity of the storage environment is installed at the lower end of the central rotating rod (43). The battery module (13) supplies power to the humidity sensor (6), and the display screen (14) also displays the measurement reading of the humidity sensor (6).

10. The sampling device for real-time monitoring of the storage quality of cold-region rice according to claim 9, characterized in that: A lever (61) is fixedly attached to the humidity sensor (6).

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