Tray grain uniform layer device for grain moisture detector

Abstract

The utility model discloses a tray grain uniformizing device for a grain moisture detector. At present, when a grain sample on a sample tray is subjected to moisture detection, the thickness of the grain sample on the sample tray cannot ensure that the thickness of each area is uniform, so that the detection result is influenced. The device comprises a grain cover, outer supporting plates, a positioning rubber column, a rotating plate, a downward pressing inserting rod and a pressing plate, a cover body on the outer side of the grain cover is connected with a set of outer supporting plates, the lower portion of each outer supporting plate is vertically and fixedly connected with the positioning rubber column, and the grain cover is supported through the positioning rubber column; an inserting barrel is integrally connected and fixed to the center of the top of the grain cover, a pressing-down inserting rod is inserted into an inserting hole in the inserting barrel, and the top of the pressing-down inserting rod is perpendicularly and fixedly connected with the center of the bottom of the rotating plate. According to the tray grain layer uniformizing device, the problem that the thickness of sample grains on the sample tray is uniform can be solved. The method is applied to the field of grain detection.

Description

Technical Field

[0001] The utility model is applied to the field of grain detection, and particularly relates to a tray grain even-layer device for a grain moisture detector. Background Technique

[0002] Halogen grain moisture detection is a method for measuring the moisture content in grains. It mainly uses halogen heating technology to quickly and evenly heat the grain samples so that the moisture in them evaporates. By accurately measuring the mass loss of the grain samples during the heating process, the moisture content of the grains is calculated according to the ratio of the mass loss to the initial mass.

[0003] Currently, when conducting grain detection, grain samples to be detected are selected to ensure the uniformity of the samples. The particles obtained by crushing or grinding the grain samples are poured into the sample tray, and it is very important to evenly place the grains on the sample tray to ensure the heating uniformity. When the halogen moisture detector heats the grains through the halogen lamp, if the grains are unevenly distributed, it will cause local accumulation to be too high or too thin. In the area with too high accumulation, the grains inside may not be able to fully contact the heat, and the moisture evaporation rate is relatively slow, affecting the overall detection efficiency. For example, the process of moisture evaporation that should originally be completed within a few minutes may be extended due to poor heat reception of local grains. In the too thin area, on the other hand, due to the over-concentration of heat, the grains in this part may be overheated and even burned, which will not only affect the accuracy of moisture detection but also may damage the tray of the instrument. Therefore, evenly distributed grains can enable heat to be evenly transferred across the entire tray, ensuring that each grain can be heated to the same extent within a similar time, so that the moisture can evaporate synchronously and evenly, guaranteeing the reliability of the detection results.

[0004] When placing the sample tray on the tripod and pouring the grains to be detected into the sample tray, on-site operators push the grains left and right in the grain samples with tweezers or a scraper. Since the height of the surrounding plates of the sample tray is low, it is easy to push the grain samples out of the tray and into the heating chamber during the pushing process. If not taken out in time, it will affect the measurement accuracy, and the volume of the heating chamber is small, making it difficult to take out the grain samples that have fallen into the heating chamber. At the same time, when using tweezers or a scraper to push and flatten the grain samples left and right, it is impossible to ensure that the thickness of each area of the grains to be detected is uniform, thus affecting the detection results. Summary of the Invention

[0005] The present invention aims to solve the problem that when detecting the moisture content of the grain samples on the sample tray in the prior art, the thickness of the grain samples on the sample tray cannot be guaranteed to be uniform in each area, thus affecting the detection results. Therefore, a tray grain even-layer device for a grain moisture detector is provided.

[0006] The technical solution of the present utility model is as follows:

[0007] A tray grain leveling device for a grain moisture detector, comprising a grain cover, an outer support plate, a positioning rubber column, a rotating plate, a downward pressing insertion rod and a pressing plate. A group of outer support plates are connected to the outer cover body of the grain cover. Vertically fixed connections are made between the lower part of each outer support plate and the positioning rubber column, and the positioning rubber column plays a role in supporting the grain cover;

[0008] A pressing plate is installed inside the grain cover. A vertical connection is made between the center position above the pressing plate and the bottom of the downward pressing insertion rod, and the downward pressing insertion rod and the pressing plate are integrally connected. The downward pressing insertion rod drives the pressing plate to move in the grain cover;

[0009] An insertion cylinder is integrally connected and fixed to the center of the top of the grain cover. The downward pressing insertion rod is inserted into the insertion hole in the insertion cylinder, and the top of the downward pressing insertion rod is vertically and fixedly connected to the center of the bottom of the rotating plate.

[0010] Preferably, a group of outer support plates includes four identical outer support plates. Among them, the included angle between two adjacent outer support plates in the longitudinal direction is less than 90°, and the included angle between two adjacent outer support plates in the transverse direction is greater than 90°.

[0011] Preferably, a countersunk head groove is provided at the center of the top of the rotating plate, and a socket head cap screw is installed in the countersunk head groove to fixedly connect the rotating plate and the downward pressing insertion rod through the socket head cap screw.

[0012] Preferably, mounting holes are provided on the outer support plate, and threaded holes are provided at the top of the positioning rubber column. After the mounting holes are aligned with the threaded holes of the positioning rubber column, the positioning rubber column and the top of the outer support plate are fixedly connected by screws.

[0013] Preferably, a silica gel pressing pad is connected to the bottom of the pressing plate.

[0014] Preferably, a sample tray is further included. The grain cover is placed above the sample tray, and the grain cover covers the grain sample in the sample tray.

[0015] Preferably, the sample tray is installed in a heating cavity. A tripod is installed in the heating cavity, and the heating cavity is connected to the bottom of the sample tray through the tripod. The tripod plays a role in supporting the sample tray.

[0016] Preferably, the heating cavity is installed in an outer cavity groove, and the positioning rubber column is inserted into the four corners of the outer cavity groove, so that the arc surface of the positioning rubber column is the same as the arc surfaces of the four corners of the outer cavity groove.

[0017] Preferably, the pressing plate is of a circular structure, and the diameter of the pressing plate is smaller than the inner diameter of the grain cover, so that the pressing plate is installed in the grain cover, and the downward pressing insertion rod drives the pressing plate to move vertically up and down in the grain cover.

[0018] Preferably, the rod diameter of the downward pressing insertion rod is smaller than the diameter of the insertion hole on the insertion cylinder, so that the downward pressing insertion rod can freely move up and down in the insertion hole in the insertion cylinder.

[0019] The utility model has the following effects compared with the prior art:

[0020] 1. The utility model is provided with a tray grain even layer device. The grain cover on the tray grain even layer device covers the grain sample on the sample tray. After the grain sample in the cover body is pressed down by the pressing plate in the grain cover, the thickness of the grain sample is consistent, solving the problem that the grain inside the part where the grain sample on the sample tray accumulates too high cannot fully contact the heat, the water evaporation speed is relatively slow, and the overall detection efficiency is affected.

[0021] 2. The outer support plate is arranged on the outer cover wall of the grain cover of the utility model, and the positioning rubber column is connected to the bottom of the outer support plate. The four positioning rubber columns are arranged at the four corners of the outer cavity groove, so that the arc surface at the corner of the outer cavity groove is the same as the arc surface between the positioning rubber columns. Thus, the grain cover is positioned by the four positioning rubber columns, so that the center of the grain cover and the center on the sample tray are on the same vertical line, ensuring that the plane of the grain cover and the sample tray is parallel.

[0022] 3. Select the grain sample to be detected to ensure the uniformity of the sample. Pour the pre-weighed grain sample (the specific weight depends on the requirements of the instrument and the type of grain) into the sample tray, record the initial mass of the sample, and cover the grain cover on the tray grain even layer device above the sample tray. Among them, the positioning rubber column can play a role in positioning the grain cover 1. The tester presses down the rotating plate, and the rotating plate drives the pressing plate to move vertically up and down through the downward pressing insertion rod. When the pressing plate in the grain cover presses down, the grain sample in the grain cover is pressed down, and the grain sample that is higher in the middle is pressed and scattered to the surrounding by the pressing plate, so as to keep the thickness of the grain sample in the grain cover uniform. Description of the Drawings

[0023] Attached Figure 1 is the structural schematic diagram of the utility model.

[0024] Attached Figure 2 is the cross-sectional view of the utility model.

[0025] Attached Figure 3 is the top view of the utility model.

[0026] Attached Figure 4 is the bottom view of the utility model.

[0027] Attached Figure 5 is the structural schematic diagram of the use between the utility model and the sample tray.

[0028] AttachedFigure 6 It is a schematic structural diagram after the cover of the halogen moisture detector is opened.

[0029] In the figure: 1. Grain cover, 2. Outer support plate, 3. Positioning rubber column, 4. Rotating plate, 5. Pressing insertion rod, 6. Pressing plate, 7. Silicone pressing pad, 8. Insertion cylinder, 9. Socket head cap screw, 10. Screw, 11. Sample tray, 12. Tripod, 13. Heating chamber, 14. Outer cavity groove, 15. Grain sample, 16. Cover of the halogen moisture detector, 17. Housing of the halogen moisture detector, 18. Display screen, 19. Corner arc area of the inner wall of the outer cavity groove. Specific embodiments

[0030] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not intended to limit the scope of the present invention. Specific embodiment one:

[0032] Combined Figure 1 and Figure 2 To illustrate this embodiment, a tray grain even layer device for a grain moisture detector in this embodiment includes a grain cover 1, an outer support plate 2, a positioning rubber column 3, a rotating plate 4, a pressing insertion rod 5 and a pressing plate 6. A group of outer support plates 2 are connected to the outer cover of the grain cover 1. The lower part of each outer support plate 2 is vertically and fixedly connected to the positioning rubber column 3. The positioning rubber column 3 plays a role in supporting the grain cover 1.

[0033] The grain cover 1 has an open bottom and a closed upper cover structure. The grain cover 1 is made of polyethylene plastic.

[0034] The outer diameter of the cover of the grain cover 1 is the same as the diameter of the plane of the sample tray 11. When the grain cover 1 is placed above the sample tray 11, the grain cover 1 covers the plane of the sample tray 11.

[0035] The outer support plate adopts a rectangular plate structure, and the end of the outer support plate 2 close to the grain cover 1 is integrally and fixedly connected to the grain cover 1; the height of the outer support plate 2 is set at a position slightly above the middle of the outer wall of the grain cover 1.

[0036] The rotating plate is made of polyethylene plastic. By rotating the rotating plate 4, the rotating plate 4 drives the pressing insertion rod 5, and the pressing insertion rod 5 drives the pressing plate to rotate or drives the pressing plate 6 to move vertically up and down.

[0037] The pressing plate 6 is installed inside the grain cover 1. The center position above the pressing plate 6 is vertically connected to the bottom of the pressing insertion rod 5, and the pressing insertion rod 5 and the pressing plate 6 are integrally connected. The pressing insertion rod 5 drives the pressing plate 6 to move in the grain cover 1.

[0038] At the center of the top of the cereal cover 1, an insertion cylinder 8 is integrally connected and fixed to the cereal cover 1. A downward pressing insertion rod 5 is inserted into the insertion hole in the insertion cylinder 8, and the top of the downward pressing insertion rod 5 is vertically and fixedly connected to the center of the bottom of the rotating plate 4. Specific Embodiment 2:

[0040] Combined with Figure 3 and Figure 4 Describe this embodiment. A tray cereal even layer device for a cereal moisture detector in this embodiment. A set of outer support plates 2 includes four identical outer support plates 2. Among them, the included angle between two adjacent outer support plates 2 in the longitudinal direction is less than 90°, and the included angle between two adjacent outer support plates 2 in the transverse direction is greater than 90°.

[0041] By setting the above structure, an insertion hole structure is opened on the plate surface of the outer support plate 2, and a positioning rubber column 3 is vertically installed below the outer support plate 2. Since the included angle between two adjacent outer support plates 2 in the longitudinal direction is less than 90°, and the included angle between two adjacent outer support plates 2 in the transverse direction is greater than 90°, therefore, the included angle between two adjacent positioning rubber columns 3 in the longitudinal direction is less than 90°, and the included angle between two adjacent positioning rubber columns 3 in the transverse direction is greater than 90°. Specific Embodiment 3:

[0043] Combined with Figure 1 — Figure 3 Describe this embodiment. A tray cereal even layer device for a cereal moisture detector in this embodiment. A counterbore is opened at the center of the top of the rotating plate 4, and an internal hexagonal counterbore bolt 9 is installed in the counterbore. The rotating plate 4 and the downward pressing insertion rod 5 are fixedly connected through the internal hexagonal counterbore bolt 9.

[0044] A counterbore is provided at the center of the top of the rotating plate 4, and a threaded hole is opened at the top of the downward pressing insertion rod 5. Therefore, after the counterbore on the rotating plate is aligned with the threaded hole opened at the top of the downward pressing insertion rod 5, the rotating plate 4 and the downward pressing insertion rod 5 are fixedly connected through the internal hexagonal counterbore bolt 9, so as to drive the downward pressing insertion rod 5 to move by rotation. Specific Embodiment 4:

[0046] Combined with Figure 1 — Figure 3 Describe this embodiment. A tray cereal even layer device for a cereal moisture detector in this embodiment. An installation hole is opened on the outer support plate 2, and a threaded hole is opened at the top of the positioning rubber column 3. After the installation hole is aligned with the threaded hole of the positioning rubber column 3, the positioning rubber column 3 and the top of the outer support plate 2 are fixedly connected through a screw 10.

[0047] The positioning rubber columns 3 are arranged at the bottom of the outer support plate 2, and the positioning rubber columns 3 can support the grain cover 1. By arranging four positioning rubber columns 3 and placing the four positioning rubber columns 3 at the four arc-shaped corners of the inner groove wall of the outer cavity groove 14, the positioning of the positioning rubber columns 3 can be achieved. When the grain cover 1 is buckled on the top of the sample tray 11, the centers of the grain cover 1 and the sample tray are on the same vertical line. Specific Embodiment Five:

[0049] Combined with Figure 2 or Figure 4 Describing this embodiment, a tray grain leveling device for a grain moisture detector in this embodiment, a silica gel pressing pad 7 is connected to the bottom of the pressing plate 6.

[0050] The silica gel pressing pad 7 is fixed to the pressing plate 6 by a fitting method. The silica gel pressing pad 7 can increase the friction force, and the diameter of the silica gel pressing pad 7 is slightly smaller than the diameter of the pressing plate. Specific Embodiment Six:

[0052] Combined with Figure 5 Describing this embodiment, a tray grain leveling device for a grain moisture detector in this embodiment further includes a sample tray 11. The grain cover 1 is placed above the sample tray 11, and the grain cover 1 covers the grain sample in the sample tray 11.

[0053] The sample tray 11 is a stainless steel tray. The height of the four sides of the sample tray 11 is slightly higher than the middle plane of the sample tray 11. The sample tray 11 mainly functions to store the grain sample; ensuring the uniformity of the thickness of the grain sample on the sample tray 11. Specific Embodiment Seven:

[0055] Combined with Figure 5 — Figure 6 Describing this embodiment, a tray grain leveling device for a grain moisture detector in this embodiment, the sample tray 11 is installed in the heating cavity 13. A tripod 12 is installed in the heating cavity. The heating cavity 13 is connected to the bottom of the sample tray 11 through the tripod 12, and the tripod 12 supports the sample tray 11.

[0056] The heating cavity 13 is a disk structure with an open top. The sample tray 11 is installed in the heating cavity 13, so that the centers of the sample tray 11 and the heating cavity 13 are on the same vertical line.

[0057] The bottom insertion rod of the tripod 12 is inserted into the center seat body of the heating cavity 13. The tripod 11 has three support rods, and the angle between two adjacent support rods among the three support rods is 120°. A sample tray 11 is placed above the tripod 11, and the tripod 11 can support the sample tray 11. Specific Embodiment VIII:

[0059] Combined with Figure 5 — Figure 6 To illustrate this embodiment, a tray grain even layer device for a grain moisture detector in this embodiment, the heating cavity 13 is installed in the outer cavity groove 14. The positioning rubber columns 3 are inserted at the four corners of the outer cavity groove 14, so that the arc surfaces of the positioning rubber columns 3 are the same as the arc-shaped surfaces at the four corners of the outer cavity groove 14.

[0060] The outer cavity groove 14 is a rectangular groove body structure with an open top. The outer cavity groove 14 is embedded in the lower shell of the halogen moisture detector housing; the heating cavity 13 is installed in the middle of the outer cavity groove 14;

[0061] The sample tray 11, the tripod 12, the heating cavity 13 and the outer cavity groove 14 are respectively made of stainless steel, and the sample tray 11, the tripod 12, the heating cavity 13 and the outer cavity groove 14 are existing structures of the halogen moisture detector. Specific Embodiment IX:

[0063] Combined with Figure 1 — Figure 3 To illustrate this embodiment, a tray grain even layer device for a grain moisture detector in this embodiment, the pressing plate 6 is of a circular structure, and the diameter of the pressing plate 6 is smaller than the inner diameter of the grain cover 1, so that the pressing plate 6 is installed in the grain cover 1, and the pressing insertion rod 5 is pressed down to drive the pressing plate 6 to move vertically up and down in the grain cover 1.

[0064] The pressing plate 6 moves through the pressing insertion rod. When the pressing insertion rod moves vertically up and down, it drives the pressing plate 6 to move vertically up and down in the grain cover 1, so as to press the grain sample in the grain cover 1 through the pressing plate 6. After pressing, the thickness of the sample grains in the grain cover 1 is the same. Specific Embodiment X:

[0066] Combined with Figure 1 — Figure 3 To illustrate this embodiment, a tray grain even layer device for a grain moisture detector in this embodiment, the rod diameter of the pressing insertion rod 5 is smaller than the diameter of the insertion hole on the insertion cylinder 8, so that the pressing insertion rod 5 can move freely up and down in the insertion hole of the insertion cylinder 8.

[0067] The insertion cylinder 8 and the top center of the grain cover 1 are of an integral structure. By providing the insertion cylinder 8, it can limit the downward pressing insertion rod, ensuring that when the downward pressing insertion rod 5 moves vertically up and down within the insertion cylinder 8, the downward pressing insertion rod 5 is prevented from shaking, thereby ensuring the stability of the pressing plate 6 in the grain cover 1 during movement.

[0068] Working principle:

[0069] Select the grain sample to be detected and ensure the uniformity of the sample. Open the cover body 16 of the halogen moisture detector, pour the pre-weighed grain sample (the specific weight depends on the requirements of the instrument and the type of grain) into the sample tray 11, record the initial mass of the sample, and cover the grain cover 1 on the tray grain even-layer device above the sample tray 11. An outer support plate 2 is connected to the outer cover wall of the grain cover 1, and a positioning rubber column 3 is connected below the outer support plate. Before the grain cover is buckled on the sample tray, the four positioning rubber columns 3 are respectively inserted into the four corners of the inner wall of the outer cavity groove 14. The arc surface of the positioning rubber column 3 is the same as the arc surface of the corner arc area 19 of the inner wall of the outer cavity groove. Therefore, the positioning rubber column 3 can position the grain cover 1, making the center of the grain cover 1 and the center of the sample tray 11 on the same vertical line, ensuring that the grain cover is buckled on the plane of the sample tray 11. The tester holds the rotating plate 4, and the rotating plate 4 drives the pressing plate to move vertically up and down or drives the pressing plate 6 to rotate through the downward pressing insertion rod 5. When the pressing plate in the grain cover 1 is pressed downward, the grain sample in the grain cover 1 is pressed downward, and the grain sample 15 that is higher in the middle is pressed and scattered around by the pressing plate 6. Since the grain cover 1 limits the grain sample 15 in the cover body, when the pressing plate 6 is pressed downward in the grain cover 1, the thickness of the grain sample in the grain cover 1 will be kept uniform. Turn on the halogen moisture analyzer and set an appropriate heating temperature. Usually, the heating temperature for grain moisture detection is between 100°C and 160°C. Wait for the halogen moisture analyzer to preheat to the set temperature. The preheating time is generally 3 - 5 minutes to ensure the stability and accuracy of the instrument. Finally, read the measurement result through the display screen 18 on the halogen moisture detector.

[0070] The above is only a preferred embodiment of the present invention and does not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to it as equivalent embodiments with equivalent changes within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention and is based on the technical essence of the present invention, any simple modification, equivalent replacement, and improvement made to the above embodiments still fall within the protection scope of the technical solution of the present invention.

Claims

1. A tray grain even layer device for a grain moisture detector, characterized in that, It includes a grain cover (1), an outer support plate (2), a positioning rubber column (3), a rotating plate (4), a downward pressing insertion rod (5) and a pressing plate (6). A group of outer support plates (2) are connected to the outer cover body of the grain cover (1). Vertically fixed connections are made between the lower part of each outer support plate (2) and the positioning rubber column (3). The positioning rubber column (3) plays a role in supporting the grain cover (1). The pressing plate (6) is installed inside the grain cover (1). A vertical connection is made between the center position above the pressing plate (6) and the bottom of the downward pressing insertion rod (5). And the downward pressing insertion rod (5) and the pressing plate (6) are integrally connected. The downward pressing insertion rod (5) drives the pressing plate (6) to move in the grain cover (1). At the center of the top of the grain cover (1), an insertion cylinder (8) is integrally connected and fixed to the grain cover (1). The downward pressing insertion rod (5) is inserted into the insertion hole in the insertion cylinder (8). The top of the downward pressing insertion rod (5) is vertically and fixedly connected to the center of the bottom of the rotating plate (4).

2. The tray grain even layer device for a grain moisture detector according to claim 1, characterized in that, A group of outer support plates (2) includes four identical outer support plates (2). Among them, the included angle between two adjacent outer support plates (2) in the longitudinal direction is less than 90°, and the included angle between two adjacent outer support plates (2) in the transverse direction is greater than 90°.

3. The tray grain even layer device for a grain moisture detector according to claim 1, characterized in that, A counterbore is provided at the center of the top of the rotating plate (4). An internal hexagon socket head bolt (9) is installed in the counterbore. The rotating plate (4) and the downward pressing insertion rod (5) are fixedly connected by the internal hexagon socket head bolt (9).

4. A tray grain leveling device for a grain moisture detector according to claim 1 or 2, characterized in that, Mounting holes are provided on the outer support plate (2). Threaded holes are provided at the top of the positioning rubber column (3). After the mounting holes are aligned with the threaded holes of the positioning rubber column (3), the positioning rubber column (3) and the top of the outer support plate (2) are fixedly connected by screws (10).

5. A tray grain even layer device for a grain moisture detector according to claim 1, characterized in that, A silica gel pressing pad (7) is connected to the bottom of the pressing plate (6).

6. A tray grain even layer device for a grain moisture detector according to claim 1, characterized in that, It also includes a sample tray (11). The grain cover (1) is placed above the sample tray (11). The grain cover (1) covers the grain sample in the sample tray (11).

7. A tray grain leveling device for a grain moisture detector according to claim 6, characterized in that, The sample tray (11) is installed in the heating cavity (13). A tripod (12) is installed in the heating cavity. The heating cavity (13) is connected to the bottom of the sample tray (11) through the tripod (12). The tripod (12) plays a role in supporting the sample tray (11).

8. A tray grain even layer device for a grain moisture detector according to claim 7, characterized in that, The heating cavity (13) is installed in the outer cavity groove (14). The positioning rubber column (3) is inserted at the four corners of the outer cavity groove (14), so that the arc surface of the positioning rubber column (3) is the same as the arc surface at the four corners of the outer cavity groove (14).

9. A tray grain even layer device for a grain moisture detector according to claim 1, characterized in that, The pressing plate (6) is of a circular structure, and the diameter of the pressing plate (6) is smaller than the inner wall diameter of the grain cover (1), so that the pressing plate (6) is installed into the grain cover (1). The downward pressing insertion rod (5) drives the pressing plate (6) to move vertically up and down in the grain cover (1).

10. A tray grain even layer device for a grain moisture detector according to claim 1, characterized in that, The rod diameter of the downward pressing insertion rod (5) is smaller than the diameter of the insertion hole on the insertion cylinder (8), so that the downward pressing insertion rod (5) can move freely up and down in the insertion hole of the insertion cylinder (8).

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