Sampling device for agricultural product detection

Abstract

The utility model discloses a sampling device for agricultural product detection, which relates to the field of agricultural product detection sampling and comprises a shell, the shell is of a cylindrical structure with one end blocked, the open end of a first feed port is connected with a guide head, and the closed end of the shell is connected with a push rod in a penetrating manner. According to the utility model, the locking mechanism is arranged to lock and limit the sampling inner barrel in a downward pressing state, so that the first feeding hole and the second feeding hole are completely staggered, the layered cavities in the sampling inner barrel are in a closed state, then the sampling inner barrel is integrally inserted into a particle grain pile, and the sampling inner barrel is pressed again, so that the sampling inner barrel is completely separated from the particle grain pile. The locking mechanism can be utilized again to release the limit of the sampling inner cylinder and reset under the action of the first spring, at the moment, the second feeding hole in the sampling inner cylinder and the first feeding hole in the shell are in a complete overlapping state, so that the granular grains can conveniently enter a layering cavity in the sampling inner cylinder, and the grain heap can be sampled at different depths; and the sampling range is expanded to meet the sampling requirement.

Description

Technical Field

[0001] This utility model relates to the field of agricultural product testing and sampling, specifically a sampling device for agricultural product testing. Background Technology

[0002] The nutritional components of agricultural products are tested, such as protein, fat, sugar, vitamins, and minerals, to assess their nutritional value and quality. Simultaneously, potentially harmful substances in agricultural products are tested, such as pesticide residues, heavy metals, and biotoxins, to ensure that the levels of these substances do not exceed safety standards.

[0003] When testing agricultural products such as rice, wheat, and sorghum, it is necessary to test for pesticide residues, mycotoxins, and heavy metals. However, when testing large quantities of granular agricultural products such as rice and wheat, suppliers may stack better products on the outside and worse products on the inside, resulting in differences between the inner and outer layers. Currently, most tests for granular grains only sample the surface layer, making it difficult to sample the inner layers, which leads to biased test results. Utility Model Content

[0004] The purpose of this utility model is to provide a sampling device for agricultural product testing in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a sampling device for agricultural product testing, comprising a shell, wherein the shell is a cylindrical structure with one end sealed, a guide head is connected to the open end of the first feed inlet, and a push rod is connected through the closed end of the shell, and a plurality of equidistant first feed inlets are provided on the outer wall of the shell.

[0006] The outer shell is slidably connected to a sampling inner cylinder, which is a cylindrical structure with closed ends and a hollow interior. The outer wall of the sampling inner cylinder has multiple equidistantly arranged second feed ports, and the interior of the sampling inner cylinder has multiple equidistantly distributed partitions to divide the inner cavity of the sampling inner cylinder into multiple chambers.

[0007] A first spring is provided between the guide head and the sampling inner cylinder. When the first spring is not pushed by an external force, the first feed port and the second feed port are completely overlapped. A locking mechanism is also provided between the guide head and the sampling inner cylinder. The locking mechanism is located inside the first spring and is used to lock and limit the sampling inner cylinder in the pressed state so that the first feed port and the second feed port are completely misaligned.

[0008] As a further embodiment of this utility model: the locking mechanism includes a connecting rod connected to the middle of the guide head, a fixed block fixedly connected to the top of the connecting rod, a first limiting block fixedly connected to the middle of the connecting rod, a movable block slidably connected to the outer wall of the connecting rod, the movable block being located between the fixed block and the first limiting block, a connecting seat connected to the top of the sampling inner cylinder, a through hole opened in the middle of the connecting seat, and two symmetrically distributed sliding grooves opened at the lower opening end of the through hole.

[0009] As a further embodiment of this utility model: the locking mechanism further includes fixed seats symmetrically arranged at both ends of the bottom of the connecting seat. The two fixed seats are respectively located on the outer sides of the two sliding grooves. A movable rod is movably connected to the middle of the fixed seat. A second limiting block is provided at one end of the movable rod, and a locking block is fixedly connected to the other end of the movable rod. A slider is provided at the bottom of the locking block, and the slider is slidably connected in the sliding groove.

[0010] As a further embodiment of this utility model: both the fixed block and the movable block are frustum-shaped structures, and the fixed block and the movable block are symmetrically arranged. The maximum outer diameter of both the fixed block and the movable block is smaller than the inner diameter of the connecting seat.

[0011] As a further improvement of this utility model: the locking block has a frustum-shaped structure, and the cross-section of the locking block is a right trapezoid.

[0012] As a further improvement of this utility model: when the second spring is in its natural state, the distance between the two locking blocks is less than the maximum outer diameter of the fixed block and the movable block.

[0013] As a further embodiment of this utility model: the number of partitions is one less than the number of second feed ports, and the partitions are located between two adjacent second feed ports, and the number of second feed ports is the same as the number of first feed ports.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention uses a locking mechanism to lock and limit the sampling inner cylinder in the pressed state, completely misaligning the first and second feed inlets. The layered chambers inside the sampling inner cylinder are in a closed state. When the entire sampling inner cylinder is inserted into the pile of granular grains, pressing the sampling inner cylinder again releases the limitation of the sampling inner cylinder using the locking mechanism, and it resets under the action of the first spring. At this time, the second feed inlet on the sampling inner cylinder is completely aligned with the first feed inlet on the outer shell, facilitating the entry of granular grains into the layered chambers inside the sampling inner cylinder. This allows for sampling at different depths of the grain pile, expanding the sampling range to meet sampling requirements. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the present invention.

[0018] Figure 3 This is a partial cross-sectional structural diagram of the present invention;

[0019] Figure 4 This is a schematic diagram of the locking mechanism, the first spring, and the guide head of this utility model;

[0020] Figure 5 This utility model Figure 4 A schematic diagram of the structure without the first spring;

[0021] Figure 6 This is a partial structural schematic diagram of the locking mechanism of this utility model.

[0022] In the diagram: 1. Outer shell; 11. First feed inlet; 2. Guide head; 3. Sampling inner cylinder; 31. Second feed inlet; 32. Partition plate; 4. Push rod; 5. First spring; 6. Locking mechanism; 601. Connecting rod; 602. Fixed block; 603. First limiting block; 604. Movable block; 605. Connecting seat; 606. Second limiting block; 607. Through hole; 608. Slide groove; 609. Fixed seat; 6010. Movable rod; 6011. Locking block; 6012. Sliding block; 6013. Second spring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-6 In this embodiment of the present invention, a sampling device for testing agricultural products includes a shell 1, which is a cylindrical structure with one end sealed. A guide head 2 is connected to the open end of the first feed port 11, and a push rod 4 is connected through the closed end of the shell 1. A plurality of first feed ports 11 are arranged at equal intervals on the outer wall of the shell 1.

[0025] The inner wall of the outer shell 1 is slidably connected to the inner sampling cylinder 3. The inner sampling cylinder 3 is a cylindrical structure with closed ends and a hollow interior. The outer wall of the inner sampling cylinder 3 is provided with multiple second feed ports 31 arranged at equal intervals. The inner wall of the inner sampling cylinder 3 is provided with multiple partitions 32 distributed at equal intervals to divide the inner cavity of the inner sampling cylinder 3 into multiple chambers.

[0026] A first spring 5 is provided between the guide head 2 and the sampling inner cylinder 3. When the first spring 5 is not pushed by an external force, the first feed port 11 and the second feed port 31 are completely overlapped. A locking mechanism 6 is also provided between the guide head 2 and the sampling inner cylinder 3. The locking mechanism 6 is located inside the first spring 5 and is used to lock and limit the sampling inner cylinder 3 in the downward state so that the first feed port 11 and the second feed port 31 are completely misaligned.

[0027] The number of partitions 32 is one less than the number of second feed ports 31, and the partitions 32 are located between two adjacent second feed ports 31. The number of second feed ports 31 is the same as the number of first feed ports 11.

[0028] In this embodiment: by setting a locking mechanism 6 to lock and limit the sampling inner cylinder 3 in the pressed state, the first feed port 11 and the second feed port 31 are completely misaligned, and the layered chambers inside the sampling inner cylinder 3 are in a closed state. Then, the sampling inner cylinder 3 is inserted into the granular grain pile, and the sampling inner cylinder 3 is pressed again. The locking mechanism 6 can be used to release the limitation of the sampling inner cylinder 3 again, and it is reset under the action of the first spring 5. At this time, the second feed port 31 on the sampling inner cylinder 3 will be completely overlapped with the first feed port 11 on the outer shell 1, which facilitates the entry of granular grain into the layered chambers inside the sampling inner cylinder 3, thereby sampling at different depths of the grain pile, expanding the sampling range, and meeting the sampling requirements.

[0029] Specifically, when sampling is required in a grain pile, first press the push rod 4, which pushes the sampling inner cylinder 3 downward. The first spring 5 locks and limits the sampling inner cylinder 3 in its downward state. At this time, the locking mechanism 6 is compressed, and the first feed port 11 and the second feed port 31 are completely misaligned, sealing multiple layered chambers in the sampling inner cylinder 3. Then, insert the outer shell 1 into the grain pile. After insertion, press the push rod 4 again, and the first spring 5 releases the limit in the downward state. Under the action of the locking mechanism 6, the sampling inner cylinder 3 is pushed back to its original position. At this time, the first feed port 11 and the second feed port 31 are completely aligned. By reciprocating the rotation of the outer shell 1, grain at different depths can enter each chamber of 3. Finally, press the push rod 4 again to lower and lock the sampling inner cylinder 3 again, sealing each layered chamber. The outer shell 1 can then be pulled out, thus completing the sampling at different depths in the grain pile.

[0030] Please refer to this carefully. Figures 1-6The locking mechanism 6 includes a connecting rod 601 connected to the middle of the guide head 2. A fixing block 602 is fixedly connected to the top of the connecting rod 601. A first limiting block 603 is fixedly connected to the middle of the connecting rod 601. A movable block 604 is slidably connected to the outer wall of the connecting rod 601. The movable block 604 is located between the fixing block 602 and the first limiting block 603. A connecting seat 605 is connected to the top of the sampling inner cylinder 3. A through hole 607 is opened in the middle of the connecting seat 605. Two symmetrically distributed sliding grooves 608 are opened at the lower opening end of the through hole 607.

[0031] The locking mechanism 6 also includes fixed seats 609 symmetrically arranged at both ends of the bottom of the connecting seat 605. The two fixed seats 609 are located on the outside of the two slide grooves 608 respectively. A movable rod 6010 is movably connected to the middle of the fixed seat 609. A second limiting block 606 is provided at one end of the movable rod 6010, and a locking block 6011 is fixedly connected to the other end of the movable rod 6010. A slider 6012 is provided at the bottom of the locking block 6011, and the slider 6012 is slidably connected in the slide groove 608.

[0032] Both the fixed block 602 and the movable block 604 are frustum-shaped structures, and are symmetrically arranged. The maximum outer diameter of both the fixed block 602 and the movable block 604 is smaller than the inner diameter of the connecting seat 605. The locking block 6011 is a frustum-shaped structure, and its cross-section is a right trapezoid. When the second spring 6013 is in its natural state, the distance between the two locking blocks 6011 is smaller than the maximum outer diameter of the fixed block 602 and the movable block 604.

[0033] In this embodiment: when the sampling inner cylinder 3 is pressed down, the connecting seat 605 also descends, and the fixing block 602 contacts the locking block 6011, pushing the two locking blocks 6011 to move outward along the length of the slide groove 608. At this time, the second spring 6013 is in a compressed state, and the fixing block 602 enters the through hole 607. As the connecting seat 605 continues to descend, the locking block 6011 will pass the maximum outer diameter of the fixing block 602. The reaction force of the second spring 6013 pushes the locking block 6011 to reset. At this time, the connecting seat 605 will be unable to move upward, and the first feed port 11 and 13 are misaligned.

[0034] When the sampling inner cylinder 3 is pressed again, the connecting seat 605 continues to move downward under force. At this time, the maximum outer diameter end of the movable block 604 will squeeze and push the two locking blocks 6011 to move outward along the length direction of the slide groove 608. After passing the maximum outer diameter end of the movable block 604, the downward pressure on the sampling inner cylinder 3 is released. At this time, under the action of the reset force of the locking mechanism 6, the two locking blocks 6011 will clamp the movable block 604 and move towards the fixed block 602 until the maximum outer diameter end of the movable block 604 is tightly attached to the maximum outer diameter end of the fixed block 602. The two locking blocks 6011 continue to be acted upon by the reset force of the locking mechanism 6. The locking blocks 6011 will pass over the movable block 604 and the fixed block 602, releasing the downward movement limit state of the sampling inner cylinder 3, and the connecting seat 605 returns to its initial position.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A sampling device for detecting agricultural products, characterized by comprising: The utility model provides a kind of sampling device, including shell (1), the shell (1) is one end of cylinder structure, the opening end of the shell (1) is connected with guide head (2), and the closed end of the shell (1) is connected with push rod (4) through, the outer wall of the shell (1) is equipped with multiple equidistantly arranged first feed port (11); The inside of the shell (1) is slidably connected with sampling inner cylinder (3), the sampling inner cylinder (3) is two-end closed inner hollow cylindrical structure, the outer wall of the sampling inner cylinder (3) is equipped with multiple equidistantly arranged second feed port (31), the inside of the sampling inner cylinder (3) is equipped with multiple equidistantly distributed baffle (32), for the inner chamber of the sampling inner cylinder (3) is divided into multiple chambers; First spring (5) is arranged between the guide head (2) and the sampling inner cylinder (3), the first feed port (11) and the second feed port (31) are completely coincident when the first spring (5) is not pressed by external force, locking mechanism (6) is further arranged between the guide head (2) and the sampling inner cylinder (3), the locking mechanism (6) is located on the inside of the first spring (5), for the sampling inner cylinder (3) in the depressed state is locked and limited, so that the first feed port (11) and the second feed port (31) are completely misaligned.

2. The sampling device for detecting agricultural products according to claim 1, wherein The locking mechanism (6) includes connecting rod (601) connected to the middle part of guide head (2), the top of the connecting rod (601) is fixedly connected with fixed block (602), the middle part of the connecting rod (601) is fixedly connected with first limiting block (603), the outer wall of the connecting rod (601) is slidably connected with movable block (604), the movable block (604) is located between the fixed block (602) and the first limiting block (603), the top of the sampling inner cylinder (3) is connected with connecting seat (605), the middle part of the connecting seat (605) is provided with through hole (607), the lower opening end of the through hole (607) is provided with two symmetrically distributed sliding grooves (608).

3. The sampling device for detecting agricultural products according to claim 2, wherein The locking mechanism (6) further includes fixed seat (609) symmetrically arranged at the bottom of the connecting seat (605), two fixed seats (609) are respectively located on the outside of the two sliding grooves (608), the middle part of the fixed seat (609) is movably connected with movable rod (6010), one end of the movable rod (6010) is provided with second limiting block (606), and the other end of the movable rod (6010) is fixedly connected with locking block (6011), the bottom of the locking block (6011) is provided with sliding block (6012), the sliding block (6012) is slidably connected in the sliding groove (608), the outer wall of the movable rod (6010) is sleeved with second spring (6013), and the second spring (6013) is located between fixed seat (609) and locking block (6011).

4. The sampling device for detecting agricultural products according to claim 3, wherein The fixed block (602) and the movable block (604) are both circular truncated cone structures, and the fixed block (602) and the movable block (604) are symmetrically arranged, and the maximum outer diameters of the fixed block (602) and the movable block (604) are both smaller than the inner diameter of the connecting seat (605).

5. The sampling device for detecting agricultural products according to claim 4, wherein The locking block (6011) is a prismatic truncated cone structure, and the cross section of the locking block (6011) is a right trapezoid.

6. The sampling device for detecting agricultural products according to claim 5, wherein When the second spring (6013) is in a natural state, the spacing between the two locking blocks (6011) is smaller than the maximum outer diameters of the fixed block (602) and the movable block (604).

7. The sampling device of claim 1, wherein the sampling device is configured to be used for detecting agricultural products. The number of the partition plates (32) is one less than the number of the second feed ports (31), and the partition plates (32) are located between adjacent two second feed ports (31), and the number of the second feed ports (31) is the same as that of the first feed ports (11).

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