Grain moisture meter for plant quarantine

Abstract

The invention relates to the technical field of grain moisture measurement, and discloses a grain moisture meter for plant quarantine, comprising: a quantitative cup, the lower opening of which is movably provided with a baffle plate; the measuring cup is provided with a first through groove and a second through groove penetrating through the inner and outer surfaces; the limiting mechanism is arranged on the outer side face of the quantifying cup, the quantifying cup can be installed on the measuring cup from top to bottom, and the limiting mechanism is connected with the top of the measuring cup and enables the baffle to correspond to the first through groove and the second through groove; the push-pull mechanisms are arranged on the left side and the right side of the measuring cup and correspond to the first through groove and the second through groove; a movable baffle is arranged on a lower opening of the quantitative cup, when the quantitative cup is installed on the measuring cup, the baffle corresponds to the first through groove and the second through groove through the limiting mechanism, the baffle is moved away from the lower opening of the quantitative cup through the push-pull mechanism, and automatic feeding is achieved; overflow can be avoided in the process that grains enter the measuring cup from the quantitative cup.

Description

Technical Field

[0001] The present invention relates to the technical field of grain moisture measurement, in particular to a grain moisture meter for plant quarantine. Background Art

[0002] A grain moisture meter is an instrument used to measure the moisture content in grains. It is widely used in agricultural production and grain processing to ensure the quality and storage conditions of grains. Grain moisture meters include several different types, such as resistance type, microwave type, infrared type, and drying furnace type. Among them, the cup-type moisture meter is the most widely used microwave grain moisture meter.

[0003] However, the cup-type moisture meter requires the operator to manually place the grains in during use. Since the measuring cup contains cross-arranged partitions, manual operation can easily cause the grains to overflow. After the grains are placed, the cup lid is slowly pressed down until the buzzer responds, completing the measurement. This operation is relatively inconvenient.

[0004] In view of this, how to provide a grain moisture meter that can be operated automatically or semi-automatically is a problem that those skilled in the art urgently need to solve. Summary of the Invention

[0005] The purpose of the present invention is to provide a grain moisture meter for plant quarantine to solve the problems existing in the prior art.

[0006] To achieve the above object, the present invention provides a grain moisture meter for plant quarantine, comprising:

[0007] The dosing cup is a cylindrical structure with upper and lower openings, and a baffle is movably provided at the lower opening, and the baffle can cover the lower opening;

[0008] The measuring cup has a first through groove and a second through groove formed through the inner and outer surfaces, wherein the first through groove and the second through groove are respectively located on the left and right sides of the measuring cup and are positioned correspondingly;

[0009] a limiting mechanism disposed on the outer side of the quantitative cup, wherein the quantitative cup can be mounted on the measuring cup from top to bottom, with the bottom of the quantitative cup extending into the measuring cup; the limiting mechanism is connected to the top of the measuring cup and enables the baffle to correspond to the first through slot and the second through slot;

[0010] The push-pull mechanism is arranged on the left and right sides of the measuring cup and corresponds to the first through slot and the second through slot. The push-pull mechanism is used to move the baffle away from the lower opening of the quantitative cup or move the baffle into and cover the lower opening of the quantitative cup.

[0011] Furthermore, it also includes:

[0012] Two clamps are symmetrically arranged at the lower opening of the quantitative cup and located on the front and rear sides of the quantitative cup. The clamps define a slide groove along the length direction. The two ends of the slide groove extend to the left and right sides of the quantitative cup. The baffle is slidably connected to the slide groove.

[0013] Furthermore, the limiting mechanism includes:

[0014] A slide rail is vertically arranged on the outer side of the quantitative cup;

[0015] A slider is slidably connected to the slide rail, and the top of the slider extends forward and backward to form a limiting portion;

[0016] a first limiting block fixedly disposed on the outer side surface of the quantitative cup and corresponding to the limiting portion, wherein when the slider moves downward to the first position, the lower surface of the limiting portion contacts the first limiting block, and the slider covers the left and right end surfaces of the baffle;

[0017] The second limit block is fixedly arranged on the outer side surface of the quantitative cup and corresponds to the limit part. The second limit block is located above the first limit block. When the slider moves from the first position to the second position, the upper surface of the limit part is connected to the second limit block, and the slider is away from the left and right end surfaces of the baffle.

[0018] Furthermore, a mounting groove is provided on the top of the measuring cup corresponding to the slider. When the quantitative cup is installed on the measuring cup from top to bottom, the slider enters the mounting groove and the slider is connected to the bottom of the mounting groove. During the installation of the quantitative cup from top to bottom, the slider is pushed from the first position to the second position by the reaction force of the mounting groove; when the slider is in the second position, there is a gap between the first limit block and the bottom of the mounting groove, and the baffle corresponds to the first through groove and the second through groove.

[0019] Furthermore, the push-pull mechanism includes:

[0020] The mounting platforms are respectively arranged on the left and right sides of the measuring cup corresponding to the first through slot and the second through slot;

[0021] A cylinder is provided on the mounting platform, wherein the output end of the cylinder is connected to a push plate;

[0022] A slide plate is provided on the mounting platform, and the push plate is slidably connected to the upper surface of the slide plate; the cylinder, the push plate and the slide plate are provided in two groups, and the push plate corresponds to the first through slot or the second through slot; the cylinder moves the baffle away from the lower opening of the quantitative cup or moves the baffle into and covers the lower opening of the quantitative cup through the push plate.

[0023] Furthermore, the cylinder can push the baffle from the lower opening of the quantitative cup to the mounting platform through the push plate.

[0024] Furthermore, the quantitative cup and the measuring cup are both rectangular cylinders, and the baffle is rectangular.

[0025] Furthermore, it also includes:

[0026] A hydraulic cylinder has an output end connected to a pressure plate, which is arranged corresponding to the top of the measuring cup. When the quantitative cup is installed on the measuring cup from top to bottom and the baffle is moved away from the lower opening of the quantitative cup, the hydraulic cylinder drives the pressure plate from top to bottom through the quantitative cup and into the measuring cup.

[0027] Furthermore, the volume of the quantitative cup is a preset volume for measuring moisture in the grains.

[0028] The present invention discloses the following technical effects:

[0029] 1. The dosing cup is used to pre-load grains before measurement. A movable baffle is provided at the lower opening of the dosing cup. When the dosing cup is mounted on the measuring cup, the baffle is aligned with the first and second through-slots by a limiting mechanism, and the baffle is removed from the lower opening of the dosing cup by a push-pull mechanism, thereby realizing automatic feeding. In addition, due to the semi-enclosed effect of the dosing cup, grains can be prevented from overflowing when entering the measuring cup from the dosing cup.

[0030] 2. Before measuring the moisture content of grains, the position of the slider is limited by the first limit block and the left and right end faces of the baffle are covered by the slider, so that the baffle is limited by the slider and the sliding grooves on both sides at the same time, which can stably carry the grain and prevent grain leakage; when the quantitative cup is installed on the measuring cup from top to bottom, the slider is pushed upward by the reaction force of the installation groove, and the position of the slider is limited by the second limit block. On the one hand, the slider is kept away from the left and right end faces of the baffle, and on the other hand, the baffle can be automatically aligned with the first through groove and the second through groove, and then the baffle is moved away from the lower opening of the quantitative cup by the push-pull mechanism, thereby realizing the automatic release of the baffle limit and the automatic alignment of the baffle and the push-pull mechanism.

[0031] 3. In the present invention, both the quantitative cup and the measuring cup are rectangular cylinders, and the baffle is rectangular. The cylinder can push the baffle from the lower opening of the quantitative cup to the mounting platform through the push plate, thereby realizing the full opening function of the lower opening of the quantitative cup, which can prevent grain from remaining in the quantitative cup; at the same time, the volume of the quantitative cup is the preset volume for measuring moisture in the grain. Before measurement, it is only necessary to fill the quantitative cup. When the baffle is removed from the lower opening, the grain in the quantitative cup can be placed in the measuring cup at the preset volume, which can improve the measurement accuracy.

[0032] 4. The present invention arranges a hydraulic cylinder and a pressure plate above the measuring cup. When the grain is placed in the measuring cup, the baffle remains removed from the lower opening. The hydraulic cylinder and the pressure plate press downward to pass through the quantitative cup and press down the grain in the measuring cup, completing the grain moisture measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0034] Figure 1 It is a schematic diagram of the quantitative cup structure;

[0035] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0036] Figure 3 This is a schematic diagram of the coordination between the quantitative cup and the measuring cup;

[0037] Among them, 1. quantitative cup; 2. baffle; 3. measuring cup; 301. first through slot; 302. second through slot; 303. mounting slot; 4. splint; 5. slide rail; 6. slider; 601. limiting part; 7. first limiting block; 8. second limiting block; 9. mounting platform; 10. cylinder; 11. push plate; 12. slide plate; 13. hydraulic cylinder; 14. pressure plate. DETAILED DESCRIPTION

[0038] Among the prior arts that have been searched:

[0039] Patent CN110187070B discloses a grain moisture meter for plant quarantine, which mainly includes the following components:

[0040] Measuring instrument body: The measuring instrument flip cover is connected to the axis on the rear side of the top, the left end face is provided with an inverted convex slide groove, and the right end face is provided with a rectangular protrusion block.

[0041] The shock-absorbing and anti-vibration mechanism is composed of a spherical sponge body, a first rectangular plate, a connecting column and a second rectangular plate, and is slidably connected in an inverted convex slide groove.

[0042] Touch screen protection device: includes a rectangular frame, a transparent isolation cover, a steel rectangular plate, a pulling block, a locking bolt and an extrusion limit plate, etc.

[0043] Here’s how it works:

[0044] Shock and vibration reduction: Slide the two shock and vibration reduction mechanisms into the inverted convex grooves, allowing the spherical sponge to contact the working surface. When the working surface vibrates, the sponge's material properties and spherical structure effectively absorb and disperse vibration energy, preventing significant vibration of the measuring instrument, thereby ensuring the accuracy of the test data.

[0045] Touchscreen protection: A pull block pulls the rectangular steel plate and its attached transparent shield through the slots of the rectangular frame and into place between the bottom surfaces of the inner ends of the two concave blocks and the bottom surface of the extrusion stop plate. The shield is held taut, with its bottom surface 1 cm away from the touchscreen control panel. This prevents direct contact between fingers or gloves during operation, preventing touchscreen malfunction or loss of sensitivity caused by residual liquid. Even if residual liquid does form on the shield, it will quickly separate from the touchscreen without human pressure, preventing malfunction.

[0046] Compared with the existing technology, this patent has the following significant advantages:

[0047] Significant shock absorption and anti-vibration effect: Through the unique shock absorption and anti-vibration mechanism design, the hard contact between the measuring instrument and the working surface is effectively avoided, which significantly improves the stability in a vibration environment and ensures the accuracy of the test data.

[0048] Reliable touch screen protection: The setting of the transparent isolation cover effectively prevents the influence of liquid residue on the touch screen control panel, improves the reliability of operation, and does not affect the touch control effect.

[0049] Compact structure, easy to assemble and maintain: Each component is reasonably designed, compact and easy to assemble and maintain, with high practicality and promotion value.

[0050] As can be seen from the above, the existing grain moisture meter mainly improves the problems of poor shock absorption and anti-vibration effect and easy contamination of the touch screen, but fails to solve the technical problems mentioned in the background technology of the present invention.

[0051] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0052] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0053] An embodiment of the present invention provides a grain moisture meter for plant quarantine, comprising:

[0054] The dosing cup 1 is a cylindrical structure with upper and lower openings. The lower opening is movably provided with a baffle 2, and the baffle 2 can cover the lower opening;

[0055] The measuring cup 3 has a first through groove 301 and a second through groove 302 formed through the inner and outer surfaces. The first through groove 301 and the second through groove 302 are located on the left and right sides of the measuring cup 3 and correspond to each other.

[0056] The limiting mechanism is provided on the outer side of the quantitative cup 1. The quantitative cup 1 can be installed on the measuring cup 3 from top to bottom, with the bottom of the quantitative cup 1 extending into the measuring cup 3. The limiting mechanism is connected to the top of the measuring cup 3 and enables the baffle 2 to correspond to the first through groove 301 and the second through groove 302.

[0057] The push-pull mechanism is provided on the left and right sides of the measuring cup 3 and corresponds to the first through slot 301 and the second through slot 302 . The push-pull mechanism is used to move the baffle 2 away from the lower opening of the quantitative cup 1 or to move the baffle 2 into and cover the lower opening of the quantitative cup 1 .

[0058] In this embodiment, there are multiple quantitative cups 1, which are used to pre-load one or more grains that need to measure moisture. The cross-sectional area of ​​the quantitative cup 1 is fixed, and the height can be flexibly selected according to actual needs. The volume of the quantitative cup 1 is the preset volume for measuring moisture in the grain.

[0059] In this embodiment, it also includes:

[0060] Two splints 4 are symmetrically arranged at the lower opening of the quantitative cup 1 and located on the front and rear sides of the quantitative cup 1. The splints 4 define a slide groove along the length direction. The two ends of the slide groove extend to the left and right sides of the quantitative cup 1. The baffle 2 is slidably connected to the slide groove.

[0061] In this embodiment, the outer surfaces of the two clamping plates 4 are flush with the metering cup 1 , and the clamping plates 4 can enter the measuring cup 3 together with the metering cup 1 .

[0062] In this embodiment, the limiting mechanism includes:

[0063] The slide rail 5 is vertically arranged on the outer side of the quantitative cup 1;

[0064] The slider 6 is slidably connected to the slide rail 5. The top of the slider 6 extends forward and backward to form a limit portion 601. The slider 6 is T-shaped as a whole.

[0065] The first limit block 7 is fixedly provided on the outer side surface of the quantitative cup 1 and corresponds to the limit portion 601. When the slider 6 moves downward to the first position, the lower surface of the limit portion 601 contacts the first limit block 7, and the slider 6 covers the left and right end surfaces of the baffle 2.

[0066] The second limit block 8 is fixedly arranged on the outer side surface of the quantitative cup 1 and corresponds to the limit portion 601. The second limit block 8 is located above the first limit block 7. When the slider 6 moves from the first position to the second position, the upper surface of the limit portion 601 is connected to the second limit block 8, and the slider 6 is away from the left and right end surfaces of the baffle 2.

[0067] In this embodiment, a mounting groove 303 is provided at the top of the measuring cup 3 corresponding to the slider 6. When the quantitative cup 1 is installed on the measuring cup 3 from top to bottom, the slider 6 enters the mounting groove 303 and the slider 6 is connected to the bottom of the mounting groove 303. During the installation of the quantitative cup 1 from top to bottom, the slider 6 is pushed from the first position to the second position by the reaction force of the mounting groove 303; when the slider 6 is in the second position, there is a gap between the first limit block 7 and the bottom of the mounting groove 303, and the baffle 2 corresponds to the first through groove 301 and the second through groove 302.

[0068] In this embodiment, the push-pull mechanism includes:

[0069] The mounting platform 9 is provided on the left and right sides of the measuring cup 3 corresponding to the first through slot 301 and the second through slot 302 respectively;

[0070] The cylinder 10 is provided on the mounting platform 9, and the output end of the cylinder 10 is connected to the push plate 11;

[0071] The slide plate 12 is arranged on the mounting platform 9, and the push plate 11 is slidably connected to the upper surface of the slide plate 12; the cylinder 10, the push plate 11 and the slide plate 12 are provided in two groups, and the push plate 11 corresponds to the first through groove 301 or the second through groove 302; the cylinder 10 moves the baffle 2 away from the lower opening of the quantitative cup 1 or moves the baffle 2 into and covers the lower opening of the quantitative cup 1 through the push plate 11.

[0072] In this embodiment, the air cylinder 10 can push the baffle 2 from the lower opening of the quantitative cup 1 to the mounting platform 9 through the push plate 11 .

[0073] In this embodiment, both the quantitative cup 1 and the measuring cup 3 are rectangular cylinders, and the baffle 2 is rectangular.

[0074] In this embodiment, it also includes:

[0075] The hydraulic cylinder 13 has a pressure plate 14 connected to its output end. The pressure plate 14 is set corresponding to the top of the measuring cup 3. When the quantitative cup 1 is installed on the measuring cup 3 from top to bottom and the baffle 2 is moved away from the lower opening of the quantitative cup 1, the hydraulic cylinder 13 drives the pressure plate 14 from top to bottom through the quantitative cup 1 and into the measuring cup 3.

[0076] In this embodiment, the initial setting height of the pressing plate 14 should be sufficient to ensure that the pressing plate 14 does not interfere with the quantitative cup 1 during the process of installing the quantitative cup 1 into the measuring cup 3 .

[0077] The specific working process is as follows:

[0078] According to the measurement requirements, grain is loaded into the metering cup 1 until the grain is flush with the upper opening of the metering cup 1, i.e., the preset volume for grain moisture measurement is reached. At this point, the slider 6 is in the first position, covering the left and right end surfaces of the baffle 2. The baffle 2 is restrained by the slider 6 and the chute on both sides, stably loading the grain and preventing leakage.

[0079] Before starting measurement, move the quantitative cup 1 as a whole, align the bottom of the quantitative cup 1 with the top of the measuring cup 3, and the slider 6 corresponds to the mounting groove 303 on the top of the measuring cup 3, and install the quantitative cup 1 from top to bottom. During the installation process, the bottom of the quantitative cup 1 is gradually inserted into the measuring cup 3, and the slider 6 enters the mounting groove 303 and the slider 6 is connected to the bottom of the mounting groove 303. The quantitative cup 1 continues to move downward, and the slider 6 is pushed by the reaction force of the mounting groove 303 to move upward from the first position to the second position; when the slider 6 is in the second position, there is a gap between the first limit block 7 and the bottom of the mounting groove 303, and the bottom of the slider 6 moves away from the left and right end faces of the baffle 2, and the baffle 2 corresponds to the first through groove 301 and the second through groove 302.

[0080] Start the cylinder 10. Here, you can start only the cylinder 10 on the left or right side, or you can start both cylinders 10 at the same time. In this embodiment, the left cylinder 10 is used as an example. The left side of the baffle 2 is the first through slot 301, and the right side is the second through slot 302. At this time, the push plate 11 on the right side is away from the second through slot 302 and will not affect the removal of the push plate 11. The left cylinder 10 moves the baffle 2 to the right through the push plate 11 until the baffle 2 is pushed onto the mounting platform 9 on the right. The left cylinder 10 resets and resets the push plate 11 to the left side of the measuring cup 3. At this time, the lower opening of the measuring cup 3 is fully open, and the grain is placed from the quantitative cup 1 into the measuring cup 3.

[0081] The hydraulic cylinder 13 is started, and the hydraulic cylinder 13 drives the pressing plate 14 to move downward. The pressing plate 14 passes through the quantitative cup 1 and enters the measuring cup 3 to press the grain until the buzzer responds and the measurement is completed.

[0082] Start the right cylinder 10, and reset the baffle 2 to the lower opening of the quantitative cup 1 through the push plate 11. Reset the right cylinder 10 and reset the push plate 11 to the right side of the measuring cup 3, separating the quantitative cup 1 from the measuring cup 3, and then start the next set of grain moisture measurement operations.

[0083] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0084] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. A grain moisture meter for plant quarantine, characterized in that: include: The quantitative cup (1) is a cylindrical structure with upper and lower openings, wherein a baffle (2) is movably provided on the lower opening, and the baffle (2) is capable of covering the lower opening; The measuring cup (3) is provided with a first through groove (301) and a second through groove (302) through the inner and outer surfaces, wherein the first through groove (301) and the second through groove (302) are respectively located on the left and right sides of the measuring cup (3) and are positioned correspondingly; a limiting mechanism, arranged on the outer side of the quantitative cup (1); the quantitative cup (1) can be mounted on the measuring cup (3) from top to bottom, with the bottom of the quantitative cup (1) extending into the measuring cup (3); the limiting mechanism is connected to the top of the measuring cup (3) and enables the baffle (2) to correspond to the first through slot (301) and the second through slot (302); A push-pull mechanism is provided on the left and right sides of the measuring cup (3) and corresponds to the first through slot (301) and the second through slot (302), and is used to move the baffle (2) away from the lower opening of the quantitative cup (1) or to move the baffle (2) into and cover the lower opening of the quantitative cup (1).

2. A grain moisture meter for plant quarantine according to claim 1, characterized in that: Also includes: Two clamping plates (4) are symmetrically arranged at the lower opening of the quantitative cup (1) and located at the front and rear sides of the quantitative cup (1). The clamping plates (4) define a slide groove along the length direction, and the two ends of the slide groove extend to the left and right sides of the quantitative cup (1). The baffle (2) is slidably connected to the slide groove.

3. A grain moisture meter for plant quarantine according to claim 2, characterized in that: The limiting mechanism includes: A slide rail (5) is arranged on the outer side of the quantitative cup (1) in a vertical direction; A slider (6) is slidably connected to the slide rail (5), and the top of the slider (6) extends in the forward and backward directions to form a limiting portion (601); A first limiting block (7) is fixedly arranged on the outer side surface of the quantitative cup (1) and corresponds to the limiting portion (601); when the slider (6) moves downward to the first position, the lower surface of the limiting portion (601) contacts the first limiting block (7), and the slider (6) covers the left and right end surfaces of the baffle (2); A second limiting block (8) is fixedly arranged on the outer side surface of the quantitative cup (1) and corresponds to the limiting portion (601). The second limiting block (8) is located above the first limiting block (7). When the slider (6) moves from the first position to the second position, the upper surface of the limiting portion (601) contacts the second limiting block (8), and the slider (6) is away from the left and right end surfaces of the baffle (2).

4. A grain moisture meter for plant quarantine according to claim 3, characterized in that: The top of the measuring cup (3) is provided with a mounting groove (303) corresponding to the slider (6); when the quantitative cup (1) is mounted on the measuring cup (3) from top to bottom, the slider (6) enters the mounting groove (303) and the slider (6) is in contact with the bottom of the mounting groove (303); during the mounting process of the quantitative cup (1) from top to bottom, the slider (6) is pushed by the reaction force of the mounting groove (303) to move from the first position to the second position; when the slider (6) is in the second position, there is a gap between the first limit block (7) and the bottom of the mounting groove (303), and the baffle (2) corresponds to the first through groove (301) and the second through groove (302).

5. A grain moisture meter for plant quarantine according to claim 4, characterized in that: The push-pull mechanism comprises: The mounting platform (9) is respectively arranged on the left and right sides of the measuring cup (3) corresponding to the first through slot (301) and the second through slot (302); A cylinder (10) is arranged on the mounting platform (9), and an output end of the cylinder (10) is connected to a push plate (11); A slide plate (12) is provided on the mounting platform (9), and the push plate (11) is slidably connected to the upper surface of the slide plate (12); the cylinder (10), the push plate (11) and the slide plate (12) are provided in two groups, and the push plate (11) corresponds to the first through slot (301) or the second through slot (302); the cylinder (10) moves the baffle (2) away from the lower opening of the quantitative cup (1) or moves the baffle (2) into and covers the lower opening of the quantitative cup (1) through the push plate (11).

6. A grain moisture meter for plant quarantine according to claim 5, characterized in that: The cylinder (10) can push the baffle (2) from the lower opening of the quantitative cup (1) to the mounting platform (9) via the push plate (11).

7. A grain moisture meter for plant quarantine according to claim 6, characterized in that: The quantitative cup (1) and the measuring cup (3) are both rectangular cylinders, and the baffle (2) is rectangular.

8. The grain moisture meter for plant quarantine according to claim 5, characterized in that: Also includes: A hydraulic cylinder (13) is connected to a pressure plate (14) at its output end. The pressure plate (14) is arranged corresponding to the top of the measuring cup (3). When the quantitative cup (1) is installed on the measuring cup (3) from top to bottom and the baffle (2) is moved away from the lower opening of the quantitative cup (1), the hydraulic cylinder (13) drives the pressure plate (14) from top to bottom to pass through the quantitative cup (1) and enter the measuring cup (3).

9. The grain moisture meter for plant quarantine according to claim 1, characterized in that: The volume of the quantitative cup (1) is a preset volume for measuring moisture in grains.

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