A wheat stem rot sampling device

Abstract

The present invention relates to the technical field of sampling devices, and discloses a wheat stem base rot sampling device, including a handle, one end of the handle is fixedly mounted with a shell, the bottom wall of the shell is rotatably mounted with a shearing wheel, the inner wall of the shell is fixedly mounted with a shearing lower plate, and the shearing lower plate is arranged directly below the shearing wheel. The present invention causes the second piston plate to move downward by continuous entry of hydraulic oil, the push rod drives the slide cylinder to move downward through the limit plate, the slide cylinder drives the conical cap to move downward, the lower surface of the conical cap contacts the top of the diseased stem, and then presses the diseased stem to enter the inside of the discharge barrel from the top edge of the multi-blade segmentation knife, at which time the diseased stem is divided into multiple pieces of stem samples by the multi-blade segmentation knife, and the device can be used to divide the cut diseased stem into multiple pieces, without the need for subsequent manual segmentation of the sample, and greatly improves the efficiency of sample preparation when batch-producing wheat stem base rot samples.

Description

Technical Field

[0001] The invention relates to the technical field of sampling devices, in particular to a wheat stem base rot sampling device. Background Art

[0002] Wheat stem rot is a disease caused by multiple pathogens, either alone or in combination. The pathogens are complex, among which Pythium and Fusarium are the main pathogens. The pathogens invade the plant from the cotyledons or young roots, producing yellow-brown water-soaked spots on the root neck, which then turn black-brown, causing root base tissue rot. When the environment is dry, the epidermis of the diseased part is sunken and closely attached to the stem. After the adult plant is infected, the diseased part is mostly close to the ground at the base of the stem, and sometimes the main stem dies.

[0003] An existing sampling device for wheat stem rot research (Announcement No.: CN217424796U) has at least the following disadvantages:

[0004] When the above patent is in use, the extrusion groove position is squeezed by hand to squeeze the upper and lower sampling plates inward. At this time, the spring is compressed, and the two ends of the lifting cylinder shrink into the lifting groove. The squeezing continues until the two pairs of movable blades and fixed blades achieve shearing of the wheat straw. The sample cut by the above device is a section of straw, and the sample is not divided into multiple pieces. Subsequent manual division is required, which greatly reduces the efficiency of sample preparation when batches of wheat stem base rot samples are prepared. Summary of the invention

[0005] The purpose of the invention is to solve the shortcomings in the prior art and to propose a wheat stem base rot sampling device.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A wheat stem base rot sampling device comprises a handle, a shell is fixedly installed at one end of the handle, a shearing wheel is rotatably installed on the bottom wall of the shell, a shearing lower plate is fixedly installed on the inner wall of the shell, the shearing lower plate is arranged directly below the shearing wheel, an shearing upper plate is fixedly installed on the top of the shell, the shearing lower plate, the shearing upper plate and the outer surface of the shell away from the handle end are all penetrated with shearing notches, the circumferential outer surface of the shearing wheel is penetrated with the same shearing notches, the upper surface of the shearing wheel is flush with the lower surface of the shearing upper plate, the lower surface of the shearing wheel is flush with the upper surface of the shearing lower plate, and the lower surface of the shearing lower plate is relative to the shearing notch A through hole is penetrated through the outer surface, and a discharge barrel is fixedly installed on the lower surface of the shear lower plate near the through hole, and the discharge barrel and the through hole are arranged on the same axis, and a multi-blade dividing knife is fixedly installed between the inner walls of the discharge barrel, and the discharge barrel is connected with the shearing opening of the outer surface of the shear wheel through the through hole, and a sample storage box is threadedly connected to the lower surface of the shell, and the bottom end of the discharge barrel penetrates the lower surface of the shell and is connected with the interior of the sample storage box, and a partition plate is fixedly installed on the inner wall of the sample storage box, and the sample storage box is divided into multiple sample storage bins by the partition plate, and the multi-blade dividing knife is matched with the partition plate, and the outer surfaces of the multiple sample storage bins are penetrated with air outlet holes.

[0008] As a further solution of the present invention, a fixed sleeve is fixedly installed on the upper surface of the shear upper plate, a slide is slidably installed on the inner wall of the fixed sleeve, a conical cap is fixedly installed on the inner wall of the slide near the bottom end, an injection gap is provided between the inner wall of the slide near the bottom end and the outer surface of the conical cap, and the bottom end of the slide passes through the upper surface of the shell and the inner wall of the shear opening of the outer surface of the shear wheel for sliding installation.

[0009] As a further solution of the present invention, a limited sliding groove is provided on the circumferential outer surface of the fixed sleeve, and a limited plate is fixedly installed on the outer surface of the slide cylinder near the top end, and the limit plate is slidably installed with the inner wall of the limit sliding groove, and a push rod is fixedly installed on the lower surface of the limit plate away from one end of the slide cylinder, and the outer surface of the push rod is sleeved with a first spring, the first spring is arranged between the limit plate and the shear upper plate, and the bottom end of the push rod passes through the upper surface of the shear upper plate and is fixedly installed with a second piston plate, the bottom wall of the shell is fixedly installed with a first compression cylinder, the second piston plate is slidably installed with the inner wall of the first compression cylinder, the second piston plate is arranged between the inner wall of the first compression cylinder near the top end, the outer surface of the first compression cylinder near the bottom end is fixedly connected with an air pipe, the other end of the air pipe passes through the top of the fixed sleeve and is fixedly connected to the top of the slide cylinder, and the slide cylinder is connected with the interior of the first compression cylinder through the air pipe.

[0010] As a further solution of the present invention, a second compression cylinder is fixedly installed on the bottom wall of the shell, a first piston plate is slidably installed on the inner wall of the second compression cylinder, a square rod is fixedly installed on the outer surface of the first piston plate close to the shear wheel, a first oil pipe is fixedly connected to the outer surface of the second compression cylinder close to the handle, the other end of the first oil pipe is fixedly connected to the outer surface of the first compression cylinder close to the top, the first compression cylinder is connected to the interior of the second compression cylinder through the first oil pipe, an end of the first oil pipe close to the first compression cylinder is arranged above the second piston plate, and an end of the first oil pipe close to the second compression cylinder is arranged on the side of the first piston plate close to the handle.

[0011] As a further solution of the present invention, the other end of the square rod passes through the end face of the other end of the second compression cylinder and is slidably installed on its inner wall, the other end of the square rod is fixedly installed with a rack, the circumferential outer surface of the shear wheel near the bottom end is fixedly installed with a gear, the rack is meshed with the gear, and an air leakage hole is penetrated through the end face of the second compression cylinder near one end of the rack.

[0012] As a further solution of the present invention, a second oil pipe is fixedly connected to the end face of the second compression cylinder near the handle, a first mounting groove is opened on the upper surface of the handle near the second compression cylinder end, a third compression cylinder is fixedly mounted on the bottom wall of the first mounting groove, the other end of the second oil pipe is fixedly connected to the end face of the third compression cylinder near the second compression cylinder end, the second compression cylinder is communicated with the interior of the third compression cylinder through the second oil pipe, a third piston plate is slidably mounted on the inner wall near the other end of the third compression cylinder, a square slide rod is fixedly mounted on the outer surface of the third piston plate away from the third compression cylinder side, a baffle is fixedly mounted on the outer surface of the square slide rod, a third spring is sleeved on the outer surface of the square slide rod, and the third spring is arranged between the third compression cylinder and the baffle.

[0013] As a further solution of the present invention, a second mounting groove is opened on the lower surface of the handle near the other end, one end of the square sliding rod passes through the inner wall of the second mounting groove and is slidably mounted thereon, a pressing handle is rotatably mounted on the inner wall of the second mounting groove, a supporting block is fixedly mounted on the upper surface of the middle position of the pressing handle, the supporting block is arranged perpendicular to the pressing handle, a connecting rod is rotatably mounted between the inner walls of the supporting block near the top end, the other end of the connecting rod is rotatably mounted on one end of the square sliding rod, a second spring is fixedly mounted on the upper surface of the pressing handle, and the top end of the second spring is fixedly connected to the top wall of the second mounting groove.

[0014] As a further solution of the present invention, the interiors of the third compression cylinder, the second oil pipe, the second compression cylinder, the first oil pipe and the first compression cylinder are filled with hydraulic oil.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The continuous entry of hydraulic oil causes the second piston plate to drive the push rod to move downward, and the push rod drives the slide cylinder to move downward through the limit plate, and the slide cylinder drives the conical cap to move downward, and the lower surface of the conical cap contacts the top of the diseased stem, and then presses the diseased stem from the top edge of the multi-blade segmentation knife into the inside of the discharge barrel. At this time, the diseased stem is divided into multiple pieces of stem samples by the multi-blade segmentation knife. The device can be used to divide the cut diseased stem into multiple pieces, without the need for subsequent manual segmentation of samples. When batches of wheat stem base rot samples are produced, the efficiency of sample production is greatly improved;

[0017] 2. Compressed air enters the interior of the slide from the air pipe, and the compressed air entering the slide is ejected from the jet gap between the conical cap and the inner wall of the slide. The ejected compressed air will form a uniform pressure around the cut diseased stems, pushing the diseased stems to the middle of the multi-blade dividing knife. When the diseased stems are cut by this device, the diseased stems are pushed to the middle of the multi-blade dividing knife, ensuring that the multi-blade dividing knife can evenly divide the diseased stems, so that the size of the prepared wheat stem base rot samples is uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a wheat stem base rot sampling device proposed by the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of a wheat stem base rot sampling device proposed by the present invention when viewed from above;

[0020] Figure 3 This is a schematic cross-sectional view of a wheat stem base rot sampling device proposed by the present invention;

[0021] Figure 4 A schematic bottom view of a shear upper plate of a wheat stem base rot sampling device proposed by the present invention;

[0022] Figure 5 A partial cross-sectional schematic diagram of a shear upper plate of a wheat stem base rot sampling device proposed by the present invention;

[0023] Figure 6 A schematic diagram of a shear lower plate of a wheat stem base rot sampling device proposed by the present invention;

[0024] Figure 7 A schematic diagram of a shear wheel of a wheat stem base rot sampling device proposed by the present invention;

[0025] Figure 8 This is a cross-sectional schematic diagram of a first compression cylinder of a wheat stem base rot sampling device proposed by the present invention;

[0026] Fig. 9 A cross-sectional schematic diagram of a fixed sleeve of a wheat stem base rot sampling device proposed by the present invention;

[0027] Fig.10 A schematic cross-sectional view of a third compression cylinder of a wheat stem base rot sampling device proposed by the present invention;

[0028] Fig.11 A schematic diagram of a multi-edged cutting knife of a wheat stem base rot sampling device proposed by the present invention;

[0029] Fig.12 This is a schematic diagram of a sample storage box of a wheat stem base rot sampling device proposed by the present invention.

[0030] In the figure: 1, handle; 101, first mounting slot; 102, second mounting slot; 2, housing; 3, sample box; 301, partition plate; 302, air outlet; 4, shear upper plate; 5, shear lower plate; 501, through hole; 502, discharge barrel; 503, multi-blade dividing knife; 6, shear wheel; 601, gear; 602, rack; 7, shearing opening; 8, fixed sleeve; 801, limit plate; 802, ejector rod; 803, second piston plate; 8 04, limit slide groove; 9, slide cylinder; 901, air pipe; 902, conical cap; 10, first spring; 11, first compression cylinder; 12, second compression cylinder; 13, first oil pipe; 14, square rod; 15, first piston plate; 16, second oil pipe; 17, third compression cylinder; 18, pressing handle; 19, second spring; 20, support block; 21, connecting rod; 22, square slide rod; 23, baffle; 24, third spring; 25, third piston plate. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0032] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Reference Figure 1-Figure 12 A wheat stem base rot sampling device comprises a handle 1, a shell 2 is fixedly installed at one end of the handle 1, a shearing wheel 6 is rotatably installed on the bottom wall of the shell 2, a shearing lower plate 5 is fixedly installed on the inner wall of the shell 2, the shearing lower plate 5 is arranged directly below the shearing wheel 6, an upper shearing plate 4 is fixedly installed on the top of the shell 2, and a shearing cut 7 is formed through the outer surfaces of the lower shearing plate 5, the upper shearing plate 4 and the end of the shell 2 away from the handle 1, and the circumferential outer surface of the shearing wheel 6 is formed through the same shearing cut 7, and the upper surface of the shearing wheel 6 is fixedly installed on the inner wall of the shell 2. The surface is flush with the lower surface of the shear upper plate 4, the lower surface of the shear wheel 6 is flush with the upper surface of the shear lower plate 5, and a through hole 501 is penetrated through the outer surface of the shear lower plate 5 relative to the shear opening 7, and a discharge barrel 502 is fixedly installed on the lower surface of the shear lower plate 5 near the through hole 501. The discharge barrel 502 and the through hole 501 are arranged on the same axis, and a multi-blade dividing knife 503 is fixedly installed between the inner walls of the discharge barrel 502, and the discharge barrel 502 is connected with the shear opening 7 on the outer surface of the shear wheel 6 through the through hole 501.

[0035] Through the continuous entry of hydraulic oil, the second piston plate 803 drives the push rod 802 to move downward, and the push rod 802 drives the slide 9 to move downward through the limit plate 801, and the slide 9 drives the conical cap 902 to move downward. The lower surface of the conical cap 902 contacts the top of the diseased stem, and then presses the diseased stem from the top edge of the multi-blade dividing knife 503 into the interior of the discharge barrel 502. At this time, the diseased stem is divided into multiple pieces of stem samples by the multi-blade dividing knife 503. The device can be used to divide the cut diseased stem into multiple pieces without the need for subsequent manual sample division. When batches of wheat stem base rot samples are produced, the efficiency of sample production is greatly improved.

[0036] In this embodiment, a fixed sleeve 8 is fixedly installed on the upper surface of the shear upper plate 4, a slide 9 is slidably installed on the inner wall of the fixed sleeve 8, a conical cap 902 is fixedly installed on the inner wall of the slide 9 near the bottom end, and an air injection gap is provided between the inner wall of the slide 9 near the bottom end and the outer surface of the conical cap 902, the bottom end of the slide 9 passes through the upper surface of the shell 2 and the inner wall of the shearing opening 7 on the outer surface of the shear wheel 6 for sliding installation, a limiting groove 804 is provided on the circumferential outer surface of the fixed sleeve 8, a limiting plate 801 is fixedly installed on the outer surface of the slide 9 near the top, the limiting plate 801 is slidably installed on the inner wall of the limiting groove 804, and a top rod 802 is fixedly installed on the lower surface of the limiting plate 801 away from the end of the slide 9. The outer surface of the push rod 802 is sleeved with a first spring 10, and the first spring 10 is arranged between the limit plate 801 and the shear upper plate 4. The bottom end of the push rod 802 passes through the upper surface of the shear upper plate 4 and is fixedly installed with a second piston plate 803. The bottom wall of the shell 2 is fixedly installed with a first compression cylinder 11. The second piston plate 803 is slidably installed with the inner wall of the first compression cylinder 11. The second piston plate 803 is arranged between the inner walls of the first compression cylinder 11 near the top. The outer surface of the first compression cylinder 11 near the bottom is fixedly connected with an air pipe 901. The other end of the air pipe 901 passes through the top of the fixed sleeve 8 and is fixedly connected to the top of the sliding cylinder 9. The sliding cylinder 9 is connected to the interior of the first compression cylinder 11 through the air pipe 901.

[0037] When the pressing handle 18 is pressed, the first piston plate 15 has completely moved to the end of the second compression cylinder 12 and will not move further. At this time, the hydraulic oil enters the space at the top of the first compression cylinder 11 through the first oil pipe 13, so that the compressed air enters the interior of the slide cylinder 9 from the air pipe 901. The compressed air entering the interior of the slide cylinder 9 is ejected from the jet gap between the conical cap 902 and the inner wall of the slide cylinder 9. The ejected compressed air will form a uniform pressure around the cut diseased stems, pushing the diseased stems to the middle position of the multi-blade dividing knife 503. When the diseased stems are cut by this device, the diseased stems are pushed to the middle position of the multi-blade dividing knife 503, ensuring that the multi-blade dividing knife 503 can evenly divide the diseased stems, so that the prepared wheat stem base rot samples are uniform in size.

[0038] In this embodiment, a second compression cylinder 12 is fixedly installed on the bottom wall of the shell 2, a first piston plate 15 is slidably installed on the inner wall of the second compression cylinder 12, a square rod 14 is fixedly installed on the outer surface of the first piston plate 15 close to the shear wheel 6, a first oil pipe 13 is fixedly connected to the outer surface of the second compression cylinder 12 close to the handle 1, the other end of the first oil pipe 13 is fixedly connected to the outer surface of the first compression cylinder 11 close to the top, the first compression cylinder 11 is connected to the inside of the second compression cylinder 12 through the first oil pipe 13, the end of the first oil pipe 13 close to the first compression cylinder 11 is arranged above the second piston plate 803, and the end of the first oil pipe 13 close to the second compression cylinder 12 is arranged On the side of the first piston plate 15 close to the handle 1, the other end of the square rod 14 passes through the end surface of the other end of the second compression cylinder 12 and is slidably installed on its inner wall, the other end of the square rod 14 is fixedly installed with a rack 602, and the circumferential outer surface of the shear wheel 6 close to the bottom end is fixedly installed with a gear 601, the rack 602 is meshed with the gear 601, and the end surface of the second compression cylinder 12 close to one end of the rack 602 is penetrated with an air leakage hole, and the end surface of the second compression cylinder 12 close to one end of the handle 1 is fixedly connected with a second oil pipe 16, and the upper surface of the handle 1 close to one end of the second compression cylinder 12 is provided with a first installation groove 101, and the bottom wall of the first installation groove 101 is fixedly installed with a third compression cylinder 17, and the third compression cylinder 18 is fixedly installed with a third compression cylinder 19. The other end of the second oil pipe 16 is fixedly connected to the end surface of the third compression cylinder 17 near one end of the second compression cylinder 12, the second compression cylinder 12 is connected to the inside of the third compression cylinder 17 through the second oil pipe 16, and a third piston plate 25 is slidably installed on the inner wall of the third compression cylinder 17 near the other end, and a square slide bar 22 is fixedly installed on the outer surface of the third piston plate 25 away from the third compression cylinder 17, and a baffle 23 is fixedly installed on the outer surface of the square slide bar 22, and a third spring 24 is sleeved on the outer surface of the square slide bar 22, and the third spring 24 is arranged between the third compression cylinder 17 and the baffle 23. A second mounting groove 102 is opened on the lower surface of the handle 1 near the other end, and the square slide bar 22 is fixedly installed on the outer surface of the square slide bar 22. One end passes through the inner wall of the second mounting groove 102 and is slidably mounted thereon, a pressing handle 18 is rotatably mounted on the inner wall of the second mounting groove 102, a support block 20 is fixedly mounted on the upper surface in the middle position of the pressing handle 18, the support block 20 is arranged perpendicular to the pressing handle 18, a connecting rod 21 is rotatably mounted between the inner walls of the support block 20 near the top, the other end of the connecting rod 21 is rotatably mounted to one end of the square sliding rod 22, a second spring 19 is fixedly mounted on the upper surface of the pressing handle 18, the top end of the second spring 19 is fixedly connected to the top wall of the second mounting groove 102, and the interiors of the third compression cylinder 17, the second oil pipe 16, the second compression cylinder 12, the first oil pipe 13 and the first compression cylinder 11 are filled with hydraulic oil.

[0039] The pressing handle 18 is pressed to retract the pressing handle 18 into the second mounting groove 102 for rotation. The rotation of the pressing handle 18 drives the support block 20 to move. The support block 20 drives the third piston plate 25 to squeeze the hydraulic oil inside the third compression cylinder 17 through the connecting rod 21 and the square sliding rod 22, so that the hydraulic oil enters the second compression cylinder 12 through the second oil pipe 16. The first piston plate 15 drives the square rod 14 to move close to the shearing wheel 6 through the push of the hydraulic oil. The square rod 14 drives the rack 602 to move close to the shearing wheel 6. The rack 602 drives the shearing wheel 6 to rotate 180° through the engagement with the gear 601, so that the shearing opening 7 on the shearing wheel 6 moves to the position of the through hole 501. The rotation of the shearing wheel 6 shears the wheat stems, and then the cut diseased stems are transported to the position of the through hole 501 and fall on the top of the multi-blade dividing knife 503. The device is convenient for cutting off the diseased position of the wheat stems. The operation is simple and convenient for sampling personnel to use.

[0040] In this embodiment, a sample storage box 3 is threadedly connected to the lower surface of the shell 2, and the bottom end of the discharge barrel 502 passes through the lower surface of the shell 2 and is connected to the interior of the sample storage box 3. A partition plate 301 is fixedly installed on the inner wall of the sample storage box 3. The sample storage box 3 is divided into multiple sample storage bins by the partition plate 301, and the multi-blade dividing knife 503 is matched with the partition plate 301. The outer surfaces of the multiple sample storage bins are penetrated by air holes 302. The cut wheat stem base rot samples will fall into the corresponding sample storage bins in the sample storage box 3 along the interval in the middle of the multi-blade dividing knife 503. Subsequent sampling personnel can take out the corresponding wheat stem base rot samples by removing the sample storage box 3.

[0041] In the present embodiment, it should be noted that due to the setting of the first spring 10, when the hydraulic oil just enters the second compression cylinder 12, the hydraulic oil first fills the second compression cylinder 12 through the action of the first spring 10, and then reaches a sufficient pressure before entering the first compression cylinder 11.

[0042] It should be noted that when the present invention is used, the sampling personnel manually hold the handle 1, align the housing 2, the shearing upper plate 4, the shearing lower plate 5 and the shearing notch 7 on the shearing wheel 6 with the position of the wheat stem to be sampled, so that the wheat stem is located inside the shearing notch 7;

[0043] Then the sampling personnel manually presses the pressing handle 18, so that the pressing handle 18 retracts and rotates inside the second mounting groove 102, and the support block 20 is driven to move by the rotation of the pressing handle 18. The support block 20 drives the third piston plate 25 to squeeze the hydraulic oil inside the third compression cylinder 17 through the connecting rod 21 and the square sliding rod 22, so that the hydraulic oil enters the second compression cylinder 12 through the second oil pipe 16. The first piston plate 15 drives the square rod 14 to move close to the shearing wheel 6 through the push of the hydraulic oil, and the square rod 14 drives the rack 602 to move close to the shearing wheel 6. The rack 602 drives the shearing wheel 6 to rotate 180° through the engagement with the gear 601, so that the shearing opening 7 on the shearing wheel 6 moves to the position of the through hole 501. The rotation of the shearing wheel 6 shears the wheat stems, and then the cut diseased stems are transported to the position of the through hole 501 and fall on the top of the multi-blade segmentation knife 503. The device is convenient for cutting off the diseased position of the wheat stems, and the operation is simple and convenient for the sampling personnel to use.

[0044] When the shearing wheel 6 rotates 180°, the cut diseased stems will be transported to the position of the through hole 501. At this time, when the pressing handle 18 is continued to be pressed, the first piston plate 15 has completely moved to the end of the second compression cylinder 12 and will not move further. At this time, the hydraulic oil enters the space at the top of the first compression cylinder 11 through the first oil pipe 13. The continuous entry of the hydraulic oil causes the second piston plate 803 to drive the push rod 802 to move downward, and the push rod 802 drives the slide cylinder 9 to move downward through the limit plate 801. The slide cylinder 9 drives the conical cap 902 to move downward, and the lower surface of the conical cap 902 contacts the top of the diseased stem, and then presses the diseased stem from the top edge of the multi-blade dividing knife 503 into the inside of the discharge barrel 502. At this time, the diseased stem is divided into multiple pieces of stem samples by the multi-blade dividing knife 503. The device can be used to divide the cut diseased stem into multiple pieces without the need for subsequent manual sample division. When batches of wheat stem base rot samples are produced, the efficiency of sample production is greatly improved.

[0045] When the second piston plate 803 moves downward, the second piston plate 803 will press the air at the bottom of the first compression cylinder 11, so that the compressed air enters the interior of the slide cylinder 9 from the air pipe 901, and the compressed air entering the interior of the slide cylinder 9 is ejected from the jet gap between the conical cap 902 and the inner wall of the slide cylinder 9. The ejected compressed air will form a uniform pressure around the cut diseased stems, pushing the diseased stems to the middle of the multi-blade segmentation knife 503. When the diseased stems are cut by this device, the diseased stems are pushed to the middle of the multi-blade segmentation knife 503, ensuring that the multi-blade segmentation knife 503 can evenly segment the diseased stems, so that the prepared wheat stem base rot samples are uniform in size.

[0046] The cut wheat stem rot samples will fall into the corresponding sample storage bin inside the sample storage box 3 along the interval in the middle of the multi-blade dividing knife 503. Subsequent sampling personnel can take out the corresponding wheat stem rot samples by removing the sample storage box 3.

[0047] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A wheat stem rot sampling device, comprising a handle (1), characterized in that: A housing (2) is fixedly mounted on one end of the handle (1), a shear wheel (6) is rotatably mounted on the bottom wall of the housing (2), a shear lower plate (5) is fixedly mounted on the inner wall of the housing (2), the shear lower plate (5) is arranged directly below the shear wheel (6), an shear upper plate (4) is fixedly mounted on the top of the housing (2), the shear lower plate (5), the shear upper plate (4) and the outer surfaces of the housing (2) away from the handle (1) are all provided with shear cuts (7), the circumferential outer surface of the shear wheel (6) is provided with the same shear cuts (7), the upper surface of the shear wheel (6) is flush with the lower surface of the shear upper plate (4), and the lower surface of the shear wheel (6) is flush with the upper surface of the shear lower plate (5), A through hole (501) is formed through the outer surface of the shear lower plate (5) relative to the shear opening (7); a discharge barrel (502) is fixedly mounted on the lower surface of the shear lower plate (5) near the through hole (501); the discharge barrel (502) and the through hole (501) are arranged on the same axis; a multi-blade dividing knife (503) is fixedly mounted between the inner walls of the discharge barrel (502); the discharge barrel (502) is connected to the shear opening (7) on the outer surface of the shear wheel (6) through the through hole (501); a sample storage box (3) is threadedly connected to the lower surface of the shell (2); the bottom end of the discharge barrel (502) passes through the lower surface of the shell (2) and is connected to the interior of the sample storage box (3); a dividing knife (503) is fixedly mounted on the inner wall of the sample storage box (3); The sample storage box (3) is divided into a plurality of sample storage chambers by the partition plate (301), the multi-blade dividing knife (503) is matched with the partition plate (301), and the outer surfaces of the plurality of sample storage chambers are penetrated with air outlet holes (302), the upper surface of the shear upper plate (4) is fixedly installed with a fixed sleeve (8), the inner wall of the fixed sleeve (8) is slidably installed with a slide cylinder (9), the inner wall of the slide cylinder (9) near the bottom end is fixedly installed with a conical cap (902), an air injection gap is provided between the inner wall of the slide cylinder (9) near the bottom end and the outer surface of the conical cap (902), the bottom end of the slide cylinder (9) penetrates the upper surface of the shell (2) and is slidably installed on the inner wall of the shear opening (7) on the outer surface of the shear wheel (6) The circumferential outer surface of the fixed sleeve (8) is penetrated by a limiting slide groove (804), the outer surface of the slide cylinder (9) near the top is fixedly installed with a limiting plate (801), the limiting plate (801) is slidably installed with the inner wall of the limiting slide groove (804), the lower surface of the limiting plate (801) away from the slide cylinder (9) is fixedly installed with a push rod (802), the outer surface of the push rod (802) is sleeved with a first spring (10), the first spring (10) is arranged between the limiting plate (801) and the shear upper plate (4), the bottom end of the push rod (802) penetrates the upper surface of the shear upper plate (4) and is fixedly installed with a second piston plate (803), and the bottom wall of the shell (2) is fixedly installed with a first compression cylinder (11),The second piston plate (803) is slidably mounted on the inner wall of the first compression cylinder (11). The second piston plate (803) is disposed between the inner walls of the first compression cylinder (11) near the top end. The outer surface of the first compression cylinder (11) near the bottom end is fixedly connected with an air pipe (901). The other end of the air pipe (901) passes through the top of the fixed sleeve (8) and is fixedly connected to the top of the sliding cylinder (9). The sliding cylinder (9) is connected to the interior of the first compression cylinder (11) through the air pipe (901).

2. A wheat stem rot sampling device according to claim 1, characterized in that: A second compression cylinder (12) is fixedly mounted on the bottom wall of the shell (2), a first piston plate (15) is slidably mounted on the inner wall of the second compression cylinder (12), a square rod (14) is fixedly mounted on the outer surface of the first piston plate (15) close to the shear wheel (6), a first oil pipe (13) is fixedly connected to the outer surface of the second compression cylinder (12) close to the handle (1), the other end of the first oil pipe (13) is fixedly connected to the outer surface of the first compression cylinder (11) close to the top, the first compression cylinder (11) is connected to the inside of the second compression cylinder (12) through the first oil pipe (13), the end of the first oil pipe (13) close to the first compression cylinder (11) is arranged above the second piston plate (803), and the end of the first oil pipe (13) close to the second compression cylinder (12) is arranged on the side of the first piston plate (15) close to the handle (1).

3. A wheat stem rot sampling device according to claim 2, characterized in that: The other end of the square rod (14) passes through the end surface of the other end of the second compression cylinder (12) and is slidably mounted on the inner wall thereof; a rack (602) is fixedly mounted on the other end of the square rod (14); a gear (601) is fixedly mounted on the circumferential outer surface of the shear wheel (6) near the bottom end; the rack (602) is meshed with the gear (601); and an air leakage hole is penetrated through the end surface of one end of the second compression cylinder (12) near the rack (602).

4. A wheat stem base rot sampling device according to claim 2, characterized in that: The end surface of the second compression cylinder (12) close to the handle (1) is fixedly connected to a second oil pipe (16); the upper surface of the handle (1) close to the second compression cylinder (12) is provided with a first mounting groove (101); a third compression cylinder (17) is fixedly mounted on the bottom wall of the first mounting groove (101); the other end of the second oil pipe (16) is fixedly connected to the end surface of the third compression cylinder (17) close to the second compression cylinder (12); the second compression cylinder (12) is connected to the third compression cylinder (17) via the second oil pipe (16). The interior of the compression cylinder (17) is connected, and a third piston plate (25) is slidably mounted on the inner wall of the third compression cylinder (17) near the other end, and a square slide rod (22) is fixedly mounted on the outer surface of the third piston plate (25) away from the third compression cylinder (17), and a baffle (23) is fixedly mounted on the outer surface of the square slide rod (22), and a third spring (24) is sleeved on the outer surface of the square slide rod (22), and the third spring (24) is arranged between the third compression cylinder (17) and the baffle (23).

5. A wheat stem rot sampling device according to claim 4, characterized in that: A second mounting groove (102) is provided on the lower surface of the handle (1) near the other end, one end of the square slide bar (22) penetrates the inner wall of the second mounting groove (102) and is slidably mounted thereon, a pressing handle (18) is rotatably mounted on the inner wall of the second mounting groove (102), a support block (20) is fixedly mounted on the upper surface of the middle position of the pressing handle (18), the support block (20) is arranged perpendicular to the pressing handle (18), a connecting rod (21) is rotatably mounted between the inner walls of the support block (20) near the top end, the other end of the connecting rod (21) is rotatably mounted on one end of the square slide bar (22), a second spring (19) is fixedly mounted on the upper surface of the pressing handle (18), and the top end of the second spring (19) is fixedly connected to the top wall of the second mounting groove (102).

6. A wheat stem rot sampling device according to claim 5, characterized in that: The interiors of the third compression cylinder (17), the second oil pipe (16), the second compression cylinder (12), the first oil pipe (13) and the first compression cylinder (11) are filled with hydraulic oil.

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