CN117929048B - A portable plant disease tissue slicing device - Google Patents

Abstract

The present invention relates to the technical field of slicing equipment, and in particular to a portable plant disease tissue slicing device. It comprises a support table, both ends and both sides of the top of the support table are rotatably connected with guard plates, one side of the guard plate is fixed with a positioning block, the top of the support table is fixed with a support shell, the top of the support shell is provided with an outer shell, a limiting frame is fixed at the top of the support shell and located outside the outer shell, a slice collection groove is provided inside the top of the limiting frame, and a positioning frame is provided on the top of the limiting frame. The portable plant disease tissue slicing device provided by the present invention can directly remove the limiting plate when needed to allow the guard plate to be unfolded through the rotatable connection with the support table, and then fix the tongcao on the inner side of the positioning frame for slicing, and observe the diseased tissue on a miniature microscope, so that the newly collected plant disease samples can be quickly inspected.

Description

A portable plant disease tissue slicing device

Technical Field

The invention relates to the technical field of slicing equipment, and in particular to a portable plant disease tissue slicing device.

Background Art

The prior art embeds the sample in paraffin or other embedding agents and slices it using a rotary slicer. The prior art takes a long time to process, the equipment is expensive, and it is not portable, which is not conducive to plant pathologists to observe plant disease samples in real time, and is not convenient for use in teaching involving the preparation of plant disease slide specimens.

At the same time, during teaching, students are sometimes asked to make slices by cutting the grass by hand. However, because students hold sharp double-sided blades to slice, they can easily scratch their palms and other parts of their hands, which poses a great safety hazard. In addition, the thickness of many slices cut manually does not meet the requirements, and the success rate is low.

When using the above technology, it is found that the prior art has the following technical problems: the existing slicing device is not portable enough when used. Therefore, a portable plant disease tissue slicing device is designed to provide another technical solution to the above technical problem.

Summary of the invention

Based on this, it is necessary to provide a portable plant disease tissue slicing device to address the above technical problems, so as to solve the technical problem that the existing slicing devices are not portable enough when used.

In order to solve the above technical problems, the present invention adopts the following technical solutions:

A portable plant disease tissue slicing device comprises a support table, both ends and both sides of the top of the support table are rotatably connected with guard plates, a positioning block is fixed to one side of the guard plate, a support shell is fixed to the top of the support table, an outer shell is provided on the top of the support shell, a limiting frame is fixed to the top of the support shell and located on the outside of the outer shell, a slice collecting groove is provided inside the top of the limiting frame, a positioning frame is provided on the top of the limiting frame, and a through hole is provided inside the positioning frame.

As a preferred embodiment of the portable plant disease tissue slicing device provided by the present invention, a miniature microscope is fixed to one side of the top of the shell.

As a preferred embodiment of the portable plant disease tissue slicing device provided by the present invention, a slicing mechanism for driving the outer shell to move is installed inside the support shell, and the slicing mechanism includes a rotating shaft, a first threaded section, a first rotating handle and a displacement block. The top of the support shell is internally slidably connected to the displacement block, and the displacement block is fixed to the outer shell. The support shell is internally rotatably connected to the rotating shaft, and a first threaded section is provided on the outer side of the rotating shaft and located on the inner side of the support shell. The outer side of the first threaded section is threadedly connected to the displacement block, and a first rotating handle is fixed to one end of the rotating shaft.

As a preferred embodiment of the portable plant disease tissue slicing device provided by the present invention, a clamping mechanism is installed inside the shell, and the clamping mechanism includes a first rotating column, a second rotating column, a second handle, a first transmission gear, a second transmission gear, a connecting shaft, a transmission column, a second threaded segment and a clamping plate. The second rotating column is rotatably connected inside one side of the shell, and a second handle is fixed at one end of the second rotating column. The first transmission gear is fixed at one end of the second rotating column away from the second handle and located inside the shell. The second transmission gear is meshed and connected to one side of the first transmission gear. The first rotating column is fixed inside the second transmission gear. The first rotating column is rotatably connected to the shell, and the outer side of the first rotating column and both ends of the second transmission gear are slidably connected with the clamping plate. One side of the second transmission gear is meshed and connected with the transmission column. A connecting shaft is fixed inside the transmission column, and the connecting shaft is rotatably connected to the shell. The outer side of the connecting shaft and both ends of the transmission column are provided with second threaded segments, and the rotation directions of the two second threaded segments are opposite, and the outer side of the second threaded segment is threadedly connected to the clamping plate.

As a preferred embodiment of the portable plant disease tissue slicing device provided by the present invention, sliders are fixed to both ends of the bottom of the positioning frame, and the sliders are slidably connected to the limiting frame.

As a preferred embodiment of the portable plant disease tissue slicing device provided by the present invention, a limiting mechanism for limiting the opening of the guard plate is installed on the top of the support table, and the limiting mechanism includes a limiting plate, a closing plate and an assembly block. The outer shell is slidably connected to the guard plate, and a placement groove is provided inside the top of the limiting plate. Assembly blocks are fixed at both ends and both sides of the bottom of the closing plate, and the assembly block is slidably connected to the limiting plate.

As a preferred embodiment of the portable plant disease tissue slicing device provided by the present invention, both sides of the bottom of the assembly block are provided with inclined surfaces.

As a preferred embodiment of the portable plant disease tissue slicing device provided by the present invention, a conveying mechanism is installed on the top of the limit frame, and the conveying mechanism includes a protective shell, a feeding plate, an adjusting plate, a sliding column, a connecting column, a pulling plate and a tension spring. A protective shell is fixed to the top of the limit frame and at one end of the positioning frame, the interior of the protective shell is slidably connected with the adjusting plate, one side of the adjusting plate is fixed with the feeding plate, the interior of the protective shell is fixed with a sliding column, the outer side of the sliding column is slidably connected with the adjusting plate, the outer side of the sliding column and the side of the adjusting plate close to the miniature microscope are sleeved with a tension spring, one side of the tension spring is fixed to the protective shell, the other side of the tension spring is fixed to the adjusting plate, the interior of the protective shell and the top of the sliding column are slidably connected with a connecting column, and the connecting column is fixed to the adjusting plate, and a pulling plate is fixed on the side of the connecting column away from the miniature microscope.

It can be seen without a doubt that the above-mentioned technical solution of the present application can definitely solve the technical problem to be solved by the present application.

At the same time, through the above technical solutions, the present invention has at least the following beneficial effects:

The portable plant disease tissue slicing device provided by the present invention can cooperate with a support platform, a guard plate, a slicing mechanism, a clamping mechanism and a conveying mechanism, and can directly remove the limit plate when needed to allow the guard plate to be unfolded through a rotation connection with the support platform, and then fix the grass on the inner side of the positioning frame for slicing, and observe the diseased tissue on a micro microscope, so that the newly collected plant disease samples can be quickly inspected;

The device can be used to slice plant diseased tissues in a portable manner, and can be used by plant pathologists for quick sampling and slide preparation when going out, or can be used in experimental teaching of making plant pathology slide specimens. It can save more time than the embedding method, and is safer than the manual method, and can make the thickness of the slices more uniform and meet the requirements; the equipment is simple and low in cost; it is easy to carry, and can be used in conjunction with a portable microscope for observation during sampling outside.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are 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.

FIG1 is a schematic diagram of the overall structure of the present invention;

Fig. 2 is an expanded view of the present invention;

FIG3 is a schematic structural diagram of a housing of the present invention;

FIG4 is a schematic diagram of the internal structure of the support shell of the present invention;

FIG5 is a schematic diagram of the internal structure of the housing of the present invention;

FIG6 is a schematic structural diagram of a limit plate of the present invention;

FIG7 is a schematic structural diagram of an assembly block of the present invention;

FIG. 8 is a schematic diagram of the internal structure of the protective shell of the present invention.

In the figure: 1. support table; 2. guard plate; 3. positioning block; 4. limit plate; 5. closing plate; 6. support shell; 7. shell; 8. limit frame; 9. miniature microscope; 10. positioning frame; 11. slider; 12. protective shell; 13. slice collecting groove; 14. rotating shaft; 15. first threaded section; 16. first rotating handle; 17. displacement block; 18. first rotating column; 19. second rotating column; 20. second handle; 21. first transmission gear; 22. second transmission gear; 23. connecting shaft; 24. transmission column; 25. second threaded section; 26. splint; 27. assembly block; 28. inclined plane; 29. feeding plate; 30. adjusting plate; 31. sliding column; 32. connecting column; 33. pulling plate; 34. tension spring.

Implementation

In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

Example

Referring to Figures 1 to 5, a portable plant disease tissue slicing device includes a support table 1, and both ends and both sides of the top of the support table 1 are rotatably connected to guard plates 2, so that the four guard plates 2 can be closed by being rotatably connected to the top of the support table 1, and can also be unfolded by being rotatably opened. A positioning block 3 is fixed to one side of the guard plate 2, and a positioning block 3 is fixed to the outer side of the four guard plates 2 that are away from each other, so that the guard plates 2 are supported by the positioning block 3 when unfolded, and the support table 1 is lifted by the positioning block 3 when the guard plates 2 are closed. A support shell 6 is fixed to the top of the support table 1, and an outer shell 7 is provided on the top of the support shell 6. A limiting frame 8 is fixed to the top of the support shell 6 and located on the outer side of the outer shell 7, so that the outer shell 7 slides between the support shell 6 and the outer shell 7;

A miniature microscope 9 is fixed to one side of the top of the housing 7, a slice collecting groove 13 is provided inside the top of the limiting frame 8, and the slices cut by the tongcao are collected through the slice collecting groove 13. A positioning frame 10 is provided on the top of the limiting frame 8, and a through hole is provided inside the positioning frame 10, so that the tongcao can be fixed to the inner side of the through hole in the positioning frame 10 by a rope. Slide blocks 11 are fixed to both ends of the bottom of the positioning frame 10, and the slide blocks 11 are located at both ends of the slice collecting groove 13, and the slide blocks 11 are slidably connected to the limiting frame 8, so that the positioning frame 10 can be installed and disassembled;

In this embodiment, the miniature microscope 9 is a portable industrial microscope measuring instrument MSA600S.

A slicing mechanism for driving the outer shell 7 to move is installed inside the support shell 6, and the slicing mechanism includes a rotating shaft 14, a first threaded section 15, a first rotating handle 16 and a displacement block 17. The top of the support shell 6 is internally slidably connected with the displacement block 17, and the displacement block 17 is fixed to the outer shell 7, so that the movement of the displacement block 17 drives the outer shell 7 to move on the top of the support shell 6. The support shell 6 is internally rotatably connected with the rotating shaft 14, and the first threaded section 15 is provided on the outer side of the rotating shaft 14 and located on the inner side of the support shell 6. The outer side of the first threaded section 15 is threadedly connected with the displacement block 17, so that the rotation of the first threaded section 15 drives the displacement block 17 to move. A first rotating handle 16 is fixed at one end of the rotating shaft 14, so that the rotating shaft 14 can be driven to rotate by rotating the first rotating handle 16 on the outer side of the support shell 6;

In this embodiment, the first thread segment 15 advances in units of 10 microns.

The housing 7 is provided with a clamping mechanism for clamping the knife holder with the double-sided blade fixed thereon inside the housing 7, so that the movement of the housing 7 drives the knife holder with the double-sided blade fixed thereon to move. The clamping mechanism includes a first rotating column 18, a second rotating column 19, a second handle 20, a first transmission gear 21, a second transmission gear 22, a connecting shaft 23, a transmission column 24, a second threaded section 25 and a clamping plate 26. The second rotating column 19 is connected to the inner rotation of one side of the housing 7, and the second handle 20 is fixed to one end of the second rotating column 19, so that the outer side of the housing 7 can be moved by The second handle 20 drives the second rotating column 19 to rotate. A first transmission gear 21 is fixed to one end of the second rotating column 19 away from the second handle 20 and located inside the housing 7. A second transmission gear 22 is meshedly connected to one side of the first transmission gear 21. A first rotating column 18 is fixed inside the second transmission gear 22. The first rotating column 18 is rotatably connected to the housing 7. Clamps 26 are slidably connected to the outer side of the first rotating column 18 and located at both ends of the second transmission gear 22. The bottom of the blade entering the inner side of the housing 7 is clamped by the approach of the two clamps 26.

In other embodiments, the diameter of the first transmission gear 21 is smaller than that of the second transmission gear 22 , so that the rotation of the first transmission gear 21 drives the second transmission gear 22 to be decelerated.

A transmission column 24 is meshedly connected to one side of the second transmission gear 22, and a connecting shaft 23 is fixed inside the transmission column 24, and the connecting shaft 23 is rotatably connected to the housing 7, so that the rotation of the transmission column 24 drives the connecting shaft 23 to rotate, and second thread segments 25 are provided on the outer side of the connecting shaft 23 and at both ends of the transmission column 24, and the two second thread segments 25 have opposite rotation directions, and the outer side of the second thread segment 25 is threadedly connected to the clamping plate 26, so that the two second thread segments 25 drive the two clamping plates 26 to move in opposite directions.

In this embodiment, the relationship between the blade holder fixed with the double-sided blade and the double-sided blade can be understood as the fixation of a disposable blade and a razor, and the blade holder fixed with the double-sided blade and the double-sided blade can also be understood as being fixed as a whole, which makes it easy to fix the double-sided blade.

The use process of the portable plant disease tissue slicing device provided by the present invention is as follows: when it is necessary to slice the grass, the guard plate 2 is unfolded through the rotation connection with the support platform 1, and the bottom of the knife holder fixed with the double-sided blade is placed inside the top of the shell 7 away from the side of the miniature microscope 9, and then the second handle 20 is rotated to drive the first transmission gear 21 to rotate through the second rotating column 19, and the meshing connection between the first transmission gear 21 and the second transmission gear 22 drives the meshing connected transmission column 24 to rotate, and the rotation of the transmission column 24 drives the two threads with opposite rotation directions through the connecting shaft 23. The second threaded segment 25 is rotated in the opposite direction, and the rotation of the second threaded segment 25 drives the threaded clamping plate 26 to move, so that the two clamping plates 26 are close to the bottom of the knife holder fixed with the double-sided blade, and then the first rotating handle 16 is rotated, so that the first rotating handle 16 drives the first threaded segment 15 to rotate through the rotating shaft 14, and the rotation of the first threaded segment 15 drives the outer shell 7 to move through the threaded displacement block 17, so that the reciprocating movement of the outer shell 7 slices the tongcao, and a 2-5mm incision is made on the cross-section of the tongcao along the direction of the tongcao through the double-sided blade, and the plant tissue to be observed is placed inside the cross-section. The tongcao is fixed to the through hole of the positioning frame 10 by a rope, and the positioning frame 10 is installed by sliding connection with the limit frame 8 through the slider 11, so that the bottom of the tongcao is aligned with the slice collecting groove 13, so that the double-sided blade can slice the tongcao with plant tissue, and the slices fall into the collecting groove 13, and then the slices in the collecting groove 13 can be dipped with a brush to make microscope slides, and observed through the micro microscope 9, so that the clamping and slicing angles of the tongcao can be mechanically controlled to simulate manual operation when the device is used, which can improve stability. At the same time, the tongcao is collected from nature and has There are cases where the thickness varies, with a diameter of approximately 4-8mm. When slicing with grass of different diameters, it is fixed to the inner side of the through hole in the positioning frame 10 by a rope. Therefore, the plant disease tissue can be sliced in a portable manner, and can be used for quick sampling and slice making by plant pathology workers when going out, or can be used in experimental teaching of plant pathology slide specimen preparation. It can save more time than the embedding method, and at the same time it can be safer than the manual method, and can make the thickness of the slice more uniform and meet the requirements; the equipment is simple and low in cost; it is easy to carry, and can be used in conjunction with a portable microscope for observation during outdoor sampling.

Example

Referring to Figures 6 and 7, a portable plant disease tissue slicing device is shown. A limiting mechanism for limiting the opening of the guard plate 2 is installed on the top of the support platform 1. The limiting mechanism includes a limiting plate 4, a closing plate 5 and an assembly block 27. The shell 7 is slidably connected to the guard plate 2, so that after the four guard plates 2 are approached by the rotating connection with the support platform 1, the four guard plates 2 are limited by the sliding connection between the limiting plate 4 and the guard plate 2, thereby protecting the equipment between the four guard plates 2. A placement groove is provided inside the top of the limiting plate 4, so that consumables such as grass and double-sided blades and brush tools can be stored inside the placement groove. Assembly blocks 27 are fixed at both ends and both sides of the bottom of the closing plate 5, and the assembly block 27 is slidably connected to the limiting plate 4, so that the assembly block 27 can be assembled through transition cooperation with the limiting plate 4, and inclined surfaces 28 are provided on both sides of the bottom of the assembly block 27, so that the assembly block 27 can easily enter the top of the sliding limiting plate 4.

In other embodiments, rectangular grooves may be provided inside both sides of the closing plate 5 for pulling the closing plate 5 upward.

The use process of a portable plant disease tissue slicing device provided by the present invention is as follows: when the limit plate 4 is removed through the sliding connection with the guard plate 2, and when it is necessary to use consumables and brush tools such as stored grass and double-sided blades, pull the closing plate 5 to make the closing plate 5 rise, so that the rise of the closing plate 5 drives the assembly block 27 to rise, so that the assembly block 27 is separated from the sliding connection of the limit plate 4, and then the object on the inner side of the limit plate 4 is taken, and when installing, the assembly block 27 is allowed to easily enter the sliding connection of the limit plate 4 through the inclined surface 28, and then a certain limit assembly is performed through the transition between the assembly block 27 and the limit plate 4.

Example

3 and 8, a portable plant disease tissue slicing device is shown, a conveying mechanism is installed on the top of the limiting frame 8, the conveying mechanism includes a protective shell 12, a feeding plate 29, an adjusting plate 30, a sliding column 31, a connecting column 32, a pulling plate 33 and a tension spring 34, a protective shell 12 is fixed to the top of the limiting frame 8 and located at one end of the positioning frame 10, so that the protective shell 12 does not affect the sliding connection between the slider 11 and the limiting frame 8, the inside of the protective shell 12 is slidably connected with the adjusting plate 30, and the feeding plate 29 is fixed on one side of the adjusting plate 30, so that the slices dipped after manual sorting by the brush are placed on the top of the feeding plate 29, the inside of the protective shell 12 is fixed with a sliding column 31, and the sliding The outer side of the moving column 31 is slidably connected to the adjustment plate 30, so that the adjustment plate 30 can slide on the outer side of the sliding column 31, and a tension spring 34 is sleeved on the outer side of the sliding column 31 and located on the side of the adjustment plate 30 close to the miniature microscope 9. One side of the tension spring 34 is fixed to the protective shell 12, and the other side of the tension spring 34 is fixed to the adjustment plate 30, so that when the adjustment plate 30 moves away from the miniature microscope 9, the tension spring 34 is stretched. A connecting column 32 is slidably connected to the inside of the protective shell 12 and located on the top of the sliding column 31, and the connecting column 32 is fixed to the adjustment plate 30, and a pulling plate 33 is fixed on the side of the connecting column 32 away from the miniature microscope 9, and the movement of the pulling plate 33 drives the connecting column 32 to move.

The use process of a portable plant disease tissue slicing device provided by the present invention is as follows: after the slices are sorted manually, the pull plate 33 is pulled, so that the pull plate 33 drives the adjustment plate 30 to slide, and the adjustment plate 30 slides on the outside of the sliding column 31 and drives the tension spring 34 to stretch, so that the adjustment plate 30 drives the feeding plate 29 to move away from the micro-microscope 9, and the slices are placed on the top of the feeding plate 29 by dipping the brush, and a glass slide can be placed on the top of the feeding plate 29 and a floating agent can be added. After the selected slices are placed in the floating agent, a cover glass is covered, and then the pulling force on the pull plate 33 is slowly released, and the feeding plate 29 is slowly restored to its original position through the rebound after the tension spring 34 is stretched, so that the feeding plate 29 is located at the detection port of the micro-microscope 9, and then the slices on the top of the feeding plate 29 are detected.

The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims (6)

1. A portable plant disease tissue slicing device, characterized in that it comprises a support platform (1), both ends and both sides of the top of the support platform (1) are rotatably connected with a guard plate (2), one side of the guard plate (2) is fixed with a positioning block (3), the top of the support platform (1) is fixed with a support shell (6), the top of the support shell (6) is provided with an outer shell (7), a limiting frame (8) is fixed at the top of the support shell (6) and located outside the outer shell (7), a slice collecting groove (13) is provided inside the top of the limiting frame (8), a positioning frame (10) is provided on the top of the limiting frame (8), and a through hole is provided inside the positioning frame (10); A slicing mechanism for driving the outer shell (7) to move is installed inside the support shell (6), and the slicing mechanism comprises a rotating shaft (14), a first threaded section (15), a first rotating handle (16) and a displacement block (17). The top of the support shell (6) is internally slidably connected with the displacement block (17), and the displacement block (17) is fixed to the outer shell (7). The support shell (6) is internally rotatably connected with the rotating shaft (14). The first threaded section (15) is provided on the outer side of the rotating shaft (14) and on the inner side of the support shell (6). The outer side of the first threaded section (15) is threadedly connected with the displacement block (17). One end of the rotating shaft (14) is fixed with the first rotating handle (16); A clamping mechanism is installed inside the housing (7), and the clamping mechanism comprises a first rotating column (18), a second rotating column (19), a second handle (20), a first transmission gear (21), a second transmission gear (22), a connecting shaft (23), a transmission column (24), a second threaded section (25) and a clamping plate (26). The second rotating column (19) is rotatably connected to the inside of one side of the housing (7), the second handle (20) is fixed to one end of the second rotating column (19), the first transmission gear (21) is fixed to one end of the second rotating column (19) away from the second handle (20) and located inside the housing (7), one side of the first transmission gear (21) is meshingly connected to the second transmission gear (22), and the second transmission gear (21) is meshingly connected to the second transmission gear (22). A first rotating column (18) is fixed inside the second transmission gear (22), and the first rotating column (18) is rotatably connected to the housing (7). A clamping plate (26) is slidably connected to the outer side of the first rotating column (18) and located at both ends of the second transmission gear (22). A transmission column (24) is meshingly connected to one side of the second transmission gear (22). A connecting shaft (23) is fixed inside the transmission column (24), and the connecting shaft (23) is rotatably connected to the housing (7). A second threaded section (25) is provided on the outer side of the connecting shaft (23) and located at both ends of the transmission column (24), and the two second threaded sections (25) have opposite rotation directions. The outer side of the second threaded section (25) is threadedly connected to the clamping plate (26). 2. A portable plant disease tissue slicing device according to claim 1, characterized in that a miniature microscope (9) is fixed to one side of the top of the housing (7). 3. A portable plant disease tissue slicing device according to claim 1, characterized in that sliders (11) are fixed to both ends of the bottom of the positioning frame (10), and the sliders (11) are slidably connected to the limiting frame (8). 4. A portable plant disease tissue slicing device according to claim 1, characterized in that a limiting mechanism for limiting the opening of the guard plate (2) is installed on the top of the support platform (1), and the limiting mechanism includes a limiting plate (4), a closing plate (5) and an assembly block (27), the shell (7) is slidably connected to the guard plate (2), a placement groove is provided inside the top of the limiting plate (4), and assembly blocks (27) are fixed at both ends and both sides of the bottom of the closing plate (5), and the assembly block (27) is slidably connected to the limiting plate (4). 5. A portable plant disease tissue slicing device according to claim 4, characterized in that both sides of the bottom of the assembly block (27) are provided with inclined surfaces (28). 6. A portable plant disease tissue slicing device according to claim 1, characterized in that a conveying mechanism is installed on the top of the limiting frame (8), and the conveying mechanism includes a protective shell (12), a feeding plate (29), an adjusting plate (30), a sliding column (31), a connecting column (32), a pulling plate (33) and a tension spring (34), a protective shell (12) is fixed on the top of the limiting frame (8) and located at one end of the positioning frame (10), the interior of the protective shell (12) is slidably connected with the adjusting plate (30), a feeding plate (29) is fixed on one side of the adjusting plate (30), and a sliding column (31) is fixed on the interior of the protective shell (12) A movable column (31), the outer side of the sliding column (31) is slidably connected to the adjustment plate (30), a tension spring (34) is sleeved on the outer side of the sliding column (31) and located on the side of the adjustment plate (30) close to the micro-microscope (9), one side of the tension spring (34) is fixed to the protective shell (12), and the other side of the tension spring (34) is fixed to the adjustment plate (30), a connecting column (32) is slidably connected inside the protective shell (12) and located on the top of the sliding column (31), and the connecting column (32) is fixed to the adjustment plate (30), and a pulling plate (33) is fixed on the side of the connecting column (32) away from the micro-microscope (9).