A leaf sampling device for rice disease detection

Abstract

The application relates to the technical field of rice detection, and discloses a leaf sampling device for rice disease detection, which comprises a shell, a slot is formed in one side of the shell, a moving assembly is arranged in the shell, the moving assembly comprises a clamping piece, the clamping piece is arranged in the shell, the clamping piece comprises a movable plate, the movable plate is located in the shell, a clamping plate is arranged on one side of the movable plate, a clamping block is fixed on one side of the clamping plate, a clamping groove is formed in the movable plate, the clamping block slides in the clamping groove, a fixing shaft is fixed on one side of the movable plate, a guide rail is fixed on the inner wall of the shell, the guide rail is matched with the fixing shaft, and the end of the guide rail is in an inclined shape. Through cooperation of the moving assembly and a cutting assembly, the length of the pinched-off leaf and the length of the collected leaf can be ensured to be the same every time when multiple leaves are collected, and the consistency of data detection can be ensured.

Description

Technical Field

[0001] This invention relates to the field of rice sampling technology, and in particular to a leaf sampling device for detecting rice diseases. Background Technology

[0002] When detecting diseases in rice, it is necessary to sample the rice leaves. During sampling, the yellowing tips of the leaves are usually pinched off, and then a portion of the leaves is taken for testing. Yellowing at the leaf tips may be caused by non-disease factors such as natural aging or mechanical damage. Pinching off this portion can avoid interfering with the accurate judgment of the disease, allowing the detection to focus more on the areas of disease symptoms that may be caused by pathogens. When sampling, multiple rice leaves are usually collected. Most existing sampling methods use scissors or manually pinch off the leaves. Both of these methods cannot guarantee that the pinched leaves are of the same length when collecting multiple leaves. Different pinched lengths will lead to differences between samples, making it difficult to compare and analyze subsequent test results, reducing the reliability of the data. Furthermore, it is impossible to guarantee that the sample lengths collected are consistent. Leaves of different lengths may be at different growth stages or affected by different environments, and their disease manifestations and physiological states may vary greatly, making the test results unstable and difficult to draw accurate conclusions. Summary of the Invention

[0003] In view of the problems existing in the above-mentioned leaf sampling devices for rice disease detection, the present invention is proposed.

[0004] Therefore, the problem that this invention aims to solve is the inaccuracy of leaf sampling.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a leaf sampling device for detecting rice diseases, comprising a shell, wherein a slot is provided on one side of the shell;

[0006] A movable component, disposed within the housing, includes a clamping member, also disposed within the housing, comprising a movable plate located within the housing. A clamping plate is provided on one side of the movable plate, and a locking block is fixed to one side of the clamping plate. A locking groove is formed on the movable plate, and the locking block slides within the locking groove. A fixed shaft is fixed to one side of the movable plate, and a guide rail is fixed to the inner wall of the housing. The guide rail cooperates with the fixed shaft, and the end of the guide rail is inclined.

[0007] The moving component also includes a pulling member disposed inside the housing, including a pull rope. One end of the pull rope is fixed to the movable plate. A winding wheel is disposed inside the housing. The other end of the pull rope is fixed to the winding wheel. A support shaft is fixed to one side of the winding wheel. A support plate is rotatably connected to the outside of the support shaft through a bearing. The top of the support plate is fixed to the top wall inside the housing.

[0008] A cutting assembly, disposed within the housing, includes a cutting component positioned above the clamping component and a support frame disposed within the housing. A cutting blade is disposed within the support frame. A telescopic rod is fixed to one side of the support frame, and a positioning plate is movably connected to the outer side of the telescopic rod. The top of the positioning plate is fixed to the inner top wall of the housing. A threaded sleeve is rotatably connected to one side of the cutting blade via a bearing. A threaded rod is threadedly connected to the inner side of the threaded sleeve, and a stabilizing block is rotatably connected to the outer side of the threaded sleeve via a bearing.

[0009] The cutting assembly also includes a pusher, which is disposed above the cutting component and includes a pressing rod. The pressing rod is located on top of the stabilizing block. One end of the pressing rod is inclined. A threaded post is internally threaded to the pressing rod. A force-bearing plate is rotatably connected to the outside of the threaded post through a bearing. The force-bearing plate cooperates with the movable plate. One end of the threaded post extends through to the outside of the outer shell and is movably connected to the outer shell.

[0010] In a preferred embodiment of the leaf sampling device for rice disease detection according to the present invention, the moving component further includes a transmission component disposed on one side of the pulling component, including a gear, the gear being fixed to the outside of the support shaft, a gear plate being disposed at the bottom of the gear, the gear plate meshing with the gear, the diameter of the gear plate being larger than the gear, a stabilizing column being fixed to one side of the gear plate, a fixing plate being rotatably connected to the outside of the stabilizing column via a bearing, the fixing plate being fixed to the inner bottom wall of the outer shell, a rack being disposed at the bottom of the gear plate, the rack meshing with the gear plate, a retaining sleeve being fixed to one side of the fixing plate, and a retaining strip being fixed to one side of the rack, the retaining strip being movably connected to the retaining sleeve.

[0011] As a preferred embodiment of the leaf sampling device for rice disease detection according to the present invention, the moving component further includes a pressing component disposed on one side of the transmission component, including a handle, the handle being fixed to the bottom of the outer shell, a rotating rod being disposed on one side of the handle, the rotating rod being hinged to the handle through a hinge plate, a guide rail being fixed on one side of the rotating rod, a guide shaft being fixed on one side of the rack, the guide shaft being slidably connected to the guide rail, and the rotating rod being inclined.

[0012] As a preferred embodiment of the leaf sampling device for rice disease detection described in this invention, a stabilizing rod is fixed to one side of the movable plate, a stabilizing sleeve is movably connected to the outside of the stabilizing rod, one end of the stabilizing sleeve is fixed to the inner wall of the outer shell, a first spring is fixed to one end of the stabilizing rod, and the other end of the first spring is fixed to the inner wall of the stabilizing sleeve.

[0013] As a preferred embodiment of the leaf sampling device for rice disease detection described in this invention, a support block is fixed to one side of the locking block, and a second spring is fixed to one side of the support block.

[0014] As a preferred embodiment of the leaf sampling device for rice disease detection described in this invention, a positioning block is fixed on one side of the stabilizing block, a positioning column is movably connected inside the positioning block, and the top of the positioning column is fixed to the inner wall of the outer shell.

[0015] In a preferred embodiment of the leaf sampling device for rice disease detection described in this invention, a third spring is fixed to the top of the cutter, and the top of the third spring is fixed to the inner wall of the outer shell.

[0016] As a preferred embodiment of the leaf sampling device for rice disease detection described in this invention, a fourth spring is fixed to one side of the squeezing rod, an installation block is fixed to the inner top wall of the outer shell, one end of the fourth spring is fixed to the installation block, and a stop block is fixed to one side of the squeezing rod.

[0017] In a preferred embodiment of the leaf sampling device for rice disease detection described in this invention, a positioning sleeve is provided on the outer side of the pull rope, and the positioning sleeve is fixed to the fixing plate by a connecting rod.

[0018] As a preferred embodiment of the leaf sampling device for rice disease detection described in this invention, a knob is fixed to the outside of the threaded sleeve, and anti-slip texture is provided on the outside of the knob.

[0019] The beneficial effects of this invention are as follows: by cooperating with the moving component and the cutting component, when collecting data from multiple leaves, it can be ensured that the length of the leaf cut off each time is the same as the length of the leaf collected, thereby ensuring the consistency of data detection. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0021] Figure 1 An overall diagram of a leaf sampling device used for detecting rice diseases.

[0022] Figure 2 A top-down view of the overall structure of a leaf sampling device for detecting rice diseases.

[0023] Figure 3 A cross-sectional view of the outer casing of a leaf sampling device for detecting rice diseases.

[0024] Figure 4 A structural diagram of the clamping component of a leaf sampling device for detecting rice diseases.

[0025] Figure 5 A structural diagram of the cut-off parts of a leaf sampling device for detecting rice diseases.

[0026] Figure 6 Leaf sampling device for rice disease detection Figure 5 Enlarged view of the structure at point A in the middle.

[0027] Figure 7 A structural diagram of the transmission components of a leaf sampling device used for detecting rice diseases.

[0028] Figure 8 Leaf sampling device for rice disease detection Figure 7 Enlarged view of the structure at point B in the middle.

[0029] In the diagram: 101 Outer shell, 101-1 Slot, 200 Moving assembly, 201 Clamping component, 201a Movable plate, 201b Clamping plate, 201c Card block, 201a-1 Card slot, 201d Fixed shaft, 201e Guide rail, 202 Pulling component, 202a Pull rope, 202b Rewinding wheel, 202c Support shaft, 202d Support plate, 300 Cutting assembly, 301 Cutting component, 301a Support frame, 301b Cutter, 301c Telescopic rod, 301d Positioning plate, 301e Threaded sleeve, 301f Threaded rod, 301g Stabilizing block, 302 Pushing component, 302a Extrusion rod, 302b Threaded column, 302c Force plate, 203 Transmission Moving parts, 203a gear, 203b gear disc, 203c stabilizer column, 203d fixing plate, 203e rack, 203g ferrule, 203f clip, 205 pressing parts, 205a handle, 205b rotating rod, 205c guide rail, 205d guide shaft, 201a-2 stabilizer bar, 201a-3 stabilizer sleeve, 201a-4 first spring, 201c-1 support block, 201c-2 second spring, 301g-1 positioning block, 301g-2 positioning column, 301b-1 third spring, 302a-1 fourth spring, 302a-2 mounting block, 302a-3 stop block, 202e positioning sleeve, 301e-1 knob. Detailed Implementation

[0030] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0033] Example 1

[0034] Reference Figures 3-8 This is the first embodiment of the present invention. This embodiment provides a leaf sampling device for detecting rice diseases. The leaf sampling device for detecting rice diseases includes a housing 101, and a slot 101-1 is provided on one side of the housing 101.

[0035] The outer casing 101 is used to store the collected blades. The blades can be inserted into the outer casing 101 through the slot 101-1. A receiving plate is provided at the bottom of the outer casing 101. One side of the receiving plate is rotatably connected to the inside of the outer casing 101 through a pivot. The receiving plate can be opened downwards to store the cut blades. The receiving plate can be opened downwards to retrieve the blades collected inside the outer casing 101.

[0036] The movable component 200 is disposed within the housing 101 and includes a clamping member 201 disposed within the housing 101. The clamping member 201 includes a movable plate 201a located within the housing 101. A clamping plate 201b is provided on one side of the movable plate 201a, and a locking block 201c is fixed on one side of the clamping plate 201b. A locking groove 201a-1 is provided on the movable plate 201a, and the locking block 201c slides within the locking groove 201a-1. A fixed shaft 201d is fixed on one side of the movable plate 201a, and a guide rail 201e is fixed on the inner wall of the housing 101. The guide rail 201e cooperates with the fixed shaft 201d, and the end of the guide rail 201e is inclined.

[0037] There are two clamping plates 201b, located above and below one side of the movable plate 201a respectively. Two locking blocks 201c are fixed on one clamping plate 201b, respectively fixed at both ends of one side of the clamping plate 201b. The locking blocks 201c are T-shaped. The clamping plate 201b is connected to the movable plate 201a through the cooperation of the locking blocks 201c and the locking slots 201a-1, so that the movable plate 201a can drive the clamping plate 201b to move. At the same time, the clamping plate 201b can also move up and down on one side of the movable plate 201a.

[0038] Both sides of the clamping plate 201b are fixed with fixing shafts 201d. There are two sets of guide rails 201e, located on both sides of the clamping plate 201b. Each set of guide rails 201e has two rails, corresponding to the upper and lower clamping plates 201b respectively.

[0039] When sampling rice leaves, the leaves are inserted into the outer shell 101 through the slot 101-1. Since the tip of the leaf is relatively hard, when the tip of the leaf contacts the movable plate 201a, if the leaf continues to move into the outer shell 101, the resistance of the movable plate 201a will cause the part of the leaf outside the outer shell 101 to bend. At this time, the leaf has already contacted the movable plate 201a, causing the leaf to stop moving into the outer shell 101.

[0040] At this time, the movable plate 201a drives the clamping plate 201b to move. When the clamping plate 201b moves, it will drive the fixed shaft 201d to move along the inclined surface of the guide rail 201e, and cause the two clamping plates 201b to move closer to each other. In this way, the blade end can be clamped and fixed by the two clamping plates 201b. As the movable plate 201a moves, the blade moves into the housing 101. When the blade moves into the housing 101, the user needs to move the housing 101 closer to the blade to avoid pulling force on the blade, which could cause the blade to break.

[0041] Both clamping plates 201b have buffer pads fixed on the side that is close to each other to prevent the blade from breaking when the clamping plates 201b are clamping the blade.

[0042] The moving component 200 also includes a pulling member 202, which is disposed inside the housing 101. It includes a pull rope 202a, one end of which is fixed to the movable plate 201a. A winding wheel 202b is disposed inside the housing 101. The other end of the pull rope 202a is fixed to the winding wheel 202b. A support shaft 202c is fixed to one side of the winding wheel 202b. A support plate 202d is rotatably connected to the outside of the support shaft 202c through a bearing. The top of the support plate 202d is fixed to the inner top wall of the housing 101.

[0043] There are two support shafts 202c, which are fixed on both sides of the winding wheel 202b. The number of support plates 202d corresponds to the number of support shafts 202c. The two work together to support the winding wheel 202b. When the winding wheel 202b rotates, it can wind up the pull rope 202a, which in turn can drive the movable plate 201a to move.

[0044] The cutting assembly 300 is disposed within the housing 101 and includes a cutting element 301 disposed above the clamping element 201. It includes a support frame 301a disposed within the housing 101 and a cutter 301b disposed within the support frame 301a. A telescopic rod 301c is fixed to one side of the support frame 301a. A positioning plate 301d is movably connected to the outside of the telescopic rod 301c. The top of the positioning plate 301d is fixed to the inner top wall of the housing 101. A threaded sleeve 301e is rotatably connected to one side of the cutter 301b via a bearing. A threaded rod 301f is threadedly connected to the inside of the threaded sleeve 301e. A stabilizing block 301g is rotatably connected to the outside of the threaded sleeve 301e via a bearing.

[0045] There are two support frames 301a and two cutters 301b, located on the inside of the outer shell 101 on both sides. One cutter 301b is located on the inner side wall of the outer shell 101, and the support frame 301a is fixed to the inner top wall of the outer shell 101. The other cutter 301b is located inside the outer shell 101 near the center, and the support frame 301a is in a horizontally movable state.

[0046] The telescopic rod 301c is telescopic and there are two of them. They are fixed to both ends of one side of the support frame 301a. The telescopic rod 301c is used to connect the two support frames 301a, so as to support and position the movable support frame 301a and prevent it from tilting downward. The positioning plate 301d is used to support and position the telescopic rod 301c.

[0047] One end of the threaded rod 301f is fixed to the cutter 301b located near the center inside the housing 101. Both support frames 301a have through slots, and the threaded rod 301f and the threaded sleeve 301e slide in the two through slots respectively.

[0048] When the leaf moves a specified length into the outer shell 101, the two cutters 301b move downwards simultaneously and cut the leaf. The leaf cut between the two cutters 301b is used as the leaf for testing. The leaf cut between the cutter 301b near the center of the outer shell 101 and the winding wheel 202b is the unwanted end part. This completes the sampling of rice leaves. In the process of sampling multiple rice plants, repeating the above operation can ensure that the sample length is consistent each time and the end cut length is the same. This can reduce the differences in disease manifestations and physiological states and stabilize the test results.

[0049] Rotating the threaded sleeve 301e can move the threaded rod 301f, which in turn moves the cutter 301b and the support frame 301a. This allows for adjustment of the distance between the two cutters 301b, enabling the collection of samples of different lengths based on the condition of the rice when cutting the leaves, thus ensuring more accurate data for rice testing.

[0050] The cutting assembly 300 also includes a pusher 302, which is disposed above the cutting assembly 301. The pusher includes a pressing rod 302a, which is located on top of the stabilizing block 301g. One end of the pressing rod 302a is inclined. A threaded post 302b is internally threaded to the pressing rod 302a. A force plate 302c is rotatably connected to the outside of the threaded post 302b through a bearing. The force plate 302c cooperates with the movable plate 201a. One end of the threaded post 302b extends through to the outside of the outer shell 101 and is movably connected to the outer shell 101.

[0051] Two stabilizing frames are fixed to the top wall of the outer casing 101. The extrusion rod 302a is movably connected to the stabilizing frame and is used to support and position the extrusion rod 302a.

[0052] The load-bearing plate 302c is rectangular, with its top fitting against the inner top wall of the outer shell 101 and being movably connected to the outer shell 101. The length of the bottom of the load-bearing plate 302c can contact the movable plate 201a.

[0053] When the movable plate 201a contacts the force plate 302c, it pushes the force plate 302c to move. The force plate 302c then drives the threaded column 302b and the extrusion rod 302a to move, causing the extrusion rod 302a to press against the stabilizing block 301g at an angle. This pushes the stabilizing block 301g to move downward, and the stabilizing block 301g drives the threaded sleeve 301e to move downward. This allows the threaded sleeve 301e and the threaded rod 301f to drive the two cutters 301b to move downward, and the cutters 301b to cut the blades.

[0054] Since the cutter 301b only moves downward when the movable plate 201a is in contact with the force plate 302c, the distance between the force plate 302c and the cutter 301b is the unwanted length at the blade end. By rotating the threaded column 302b, the force plate 302c can be moved, changing the distance between the force plate 302c and the cutter 301b, thus adjusting the unwanted length at the blade end. This allows for cutting adjustments based on the actual situation at the blade end.

[0055] The top of the outer casing 101, above the force plate 302c and the cutter 301b, is made of transparent material and has a scale. The movement of the force plate 302c and the cutter 301b can be observed through the scale, so that the adjustment position of the two can be clearly known.

[0056] Example 2

[0057] Reference Figures 1-8 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0058] Specifically, the moving component 200 also includes a transmission component 203, which is disposed on one side of the pulling component 202. The transmission component includes a gear 203a, which is fixed to the outside of the support shaft 202c. A gear disk 203b is disposed at the bottom of the gear 203a and meshes with the gear 203a. The diameter of the gear disk 203b is larger than that of the gear 203a. A stabilizing column 203c is fixed to one side of the gear disk 203b. A fixing plate 203d is rotatably connected to the outside of the stabilizing column 203c through a bearing. The fixing plate 203d is fixed to the inner bottom wall of the outer casing 101. A rack 203e is disposed at the bottom of the gear disk 203b and meshes with the gear disk 203b. A retaining sleeve 203g is fixed to one side of the fixing plate 203d and a retaining bar 203f is fixed to one side of the rack 203e. The retaining bar 203f is movably connected to the retaining sleeve 203g.

[0059] Since the diameter of the gear 203b is larger than that of the gear 203a, the gear 203b will drive the gear 203a to rotate more times after rotating a fewer number of times. This allows the gear 203a to drive the support shaft 202c and the winding wheel 202b to rotate more times, and thus the winding wheel 202b can drive the movable plate 201a to move a longer distance via the pull rope 202a.

[0060] When the rack 203e moves, it drives the gear disk 203b to rotate, which in turn drives the gear 203a to rotate.

[0061] The card strip 203f is T-shaped. The card strip 203f and the card sleeve 203g are used to position the rack 203e and prevent it from shifting during movement.

[0062] Specifically, the moving component 200 also includes a pressing component 205, which is disposed on one side of the transmission component 203. It includes a handle 205a, which is fixed to the bottom of the housing 101. A rotating rod 205b is disposed on one side of the handle 205a. The rotating rod 205b is hinged to the handle 205a through a hinge plate. A guide rail 205c is fixed on one side of the rotating rod 205b. A guide shaft 205d is fixed on one side of the rack 203e. The guide shaft 205d is slidably connected to the guide rail 205c. The rotating rod 205b is inclined.

[0063] The handle 205a allows the user to easily pick up and drop the outer casing 101. Pressing the rotating rod 205b causes the rack 203e to move through the cooperation of the guide shaft 205d and the guide rail 205c.

[0064] Specifically, a stabilizing rod 201a-2 is fixed to one side of the movable plate 201a, and a stabilizing sleeve 201a-3 is movably connected to the outside of the stabilizing rod 201a-2. One end of the stabilizing sleeve 201a-3 is fixed to the inner wall of the outer shell 101, and a first spring 201a-4 is fixed to one end of the stabilizing rod 201a-2. The other end of the first spring 201a-4 is fixed to the inner wall of the stabilizing sleeve 201a-3.

[0065] The stabilizing rod 201a-2 and the stabilizing sleeve 201a-3 work together to support and position the movable plate 201a, preventing it from shifting during movement. After the blade is cut, the first spring 201a-4 can apply a thrust to the stabilizing rod 201a-2, and the stabilizing rod 201a-2 can drive the movable plate 201a to reset, so that the blade can be sampled again.

[0066] Specifically, a support block 201c-1 is fixed to one side of the card block 201c, and a second spring 201c-2 is fixed to one side of the support block 201c-1.

[0067] The number of support blocks 201c-1 corresponds to the number of locking blocks 201c, and a second spring 201c-2 is fixed between the two support blocks 201c-1.

[0068] After the movable plate 201a is reset, the second spring 201c-2 can apply a pushing force to the two support blocks 201c-1, and the support blocks 201c-1 can drive the locking block 201c and the clamping plate 201b to move, thereby resetting the clamping plate 201b.

[0069] Specifically, a positioning block 301g-1 is fixed on one side of the stabilizing block 301g, and a positioning post 301g-2 is movably connected inside the positioning block 301g-1. The top of the positioning post 301g-2 is fixed to the inner wall of the outer shell 101. The two work together to position the stabilizing block 301g and prevent it from shifting when moving.

[0070] Example 3

[0071] Reference Figures 1-8 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0072] Specifically, a third spring 301b-1 is fixed to the top of the cutter 301b, and the top of the third spring 301b-1 is fixed to the inner wall of the outer casing 101.

[0073] After the extrusion rod 302a is reset, the third spring 301b-1 can apply an upward pulling force to the cutter 301b, thereby resetting the cutter 301b.

[0074] Specifically, a fourth spring 302a-1 is fixed to one side of the extrusion rod 302a, an installation block 302a-2 is fixed to the inner top wall of the outer casing 101, one end of the fourth spring 302a-1 is fixed to the installation block 302a-2, and a stop block 302a-3 is fixed to one side of the extrusion rod 302a.

[0075] After the movable plate 201a is reset, the fourth spring 302a-1 applies a pulling force to the pressing rod 302a, which can reset the pressing rod 302a. When the pressing rod 302a pushes the stabilizing block 301g downward and the stop block 302a-3 contacts the stabilizing block 301g, the pressing rod 302a can be restricted to prevent it from moving further. This avoids the pressing rod 302a moving too far and separating from the top of the stabilizing block 301g.

[0076] Specifically, a positioning sleeve 202e is fitted on the outside of the pull rope 202a, and the positioning sleeve 202e is fixed to the fixing plate 203d by a connecting rod.

[0077] The connecting rod is L-shaped and is used to fix the positioning sleeve 202e. The positioning sleeve 202e is used to position and guide the pull rope 202a.

[0078] Specifically, a knob 301e-1 is fixed to the outside of the threaded sleeve 301e, and the outside of the knob 301e-1 is provided with anti-slip texture.

[0079] The top of the outer casing 101, above the knob 301e-1, has a through hole. The user can insert their finger into the outer casing 101 through the through hole and rotate the knob 301e-1 to adjust the threaded sleeve 301e.

[0080] In summary, the leaf sampling device for rice disease detection has the following advantages:

[0081] 1. When sampling multiple rice leaves, the leaves sampled in the same batch can be of the same length, and the cut length of the ends of multiple rice leaves can be the same. This ensures the consistency of physical characteristics of each sample, and eliminates interference factors caused by differences in sample length when conducting disease detection and other analyses.

[0082] Second, the length of the blades used for sampling and testing can be adjusted to meet various testing needs, thus improving the versatility and applicability of the equipment.

[0083] Third, it can adjust the length of the cut at the tip of rice leaves, which can accurately remove non-critical parts that may interfere with disease detection, ensuring that the detection is concentrated on the leaf area related to the main diseases, thereby improving the accuracy of the detection results.

[0084] When using the rice leaves, the leaves are inserted into the outer shell 101 through the slot 101-1. Since the tip of the leaf is relatively hard, when the tip of the leaf contacts the movable plate 201a, if the leaf continues to move into the outer shell 101, the resistance of the movable plate 201a will cause the part of the leaf outside the outer shell 101 to bend. At this time, the leaf has already contacted the movable plate 201a, causing the leaf to stop moving into the outer shell 101.

[0085] At this time, press the rotating rod 205b, and drive the rack 203e to move through the cooperation of the guide shaft 205d and the guide rail 205c. When the rack 203e moves, it will drive the gear 203b to rotate, which will drive the gear 203a to rotate, and the gear 203a will support the shaft 202c and the winding wheel 202b to rotate. When the winding wheel 202b rotates, it can wind up the pull rope 202a, which will drive the movable plate 201a to move.

[0086] The movable plate 201a drives the clamping plate 201b to move. When the clamping plate 201b moves, it drives the fixed shaft 201d to move along the inclined surface of the guide rail 201e, and causes the two clamping plates 201b to move closer to each other. In this way, the blade end can be clamped and fixed by the two clamping plates 201b. As the movable plate 201a moves, the blade moves into the housing 101. When the blade moves into the housing 101, the user needs to move the housing 101 closer to the blade to avoid pulling force on the blade, which could cause the blade to break.

[0087] When the movable plate 201a contacts the force plate 302c, it pushes the force plate 302c to move. The force plate 302c then drives the threaded column 302b and the extrusion rod 302a to move, causing the extrusion rod 302a to press against the stabilizing block 301g at an angle. This pushes the stabilizing block 301g to move downward, and the stabilizing block 301g drives the threaded sleeve 301e to move downward. This allows the threaded sleeve 301e and the threaded rod 301f to drive the two cutters 301b to move downward, and the cutters 301b to cut the blades.

[0088] The leaf cut between the two cutters 301b is used as the test leaf. The leaf cut between the cutter 301b and the winding wheel 202b inside the outer shell 101 near the center is the unwanted end part. This can complete the sampling of rice leaves. In the process of sampling multiple rice plants, repeating the above operation can ensure that the sample length is consistent each time and the end cut length is the same. This can reduce the difference in disease manifestations and physiological state and make the test results stable.

[0089] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A leaf sampling device for detecting rice diseases, characterized in that: include, The outer casing (101) has a slot (101-1) on one side. A movable component (200), disposed within the housing (101), includes a clamping member (201), disposed within the housing (101), comprising a movable plate (201a), the movable plate (201a) being located within the housing (101), a clamping plate (201b) being disposed on one side of the movable plate (201a), a locking block (201c) being fixed on one side of the clamping plate (201b), a locking groove (201a-1) being formed on the movable plate (201a), the locking block (201c) sliding within the locking groove (201a-1), and the clamping plate (201b)... A fixed shaft (201d) is fixed on one side, and a guide rail (201e) is fixed on the inner wall of the outer shell (101). The guide rail (201e) cooperates with the fixed shaft (201d). The end of the guide rail (201e) is inclined. A support block (201c-1) is fixed on one side of the clamping block (201c). A second spring (201c-2) is fixed on one side of the support block (201c-1). A buffer pad is fixed on the side of the two clamping plates (201b) that are close to each other to prevent the blade from breaking when the clamping plates (201b) clamp the blade. The moving component (200) further includes a pulling member (202) disposed inside the housing (101), including a pull rope (202a), one end of which is fixed to the movable plate (201a), a winding wheel (202b) is disposed inside the housing (101), the other end of which is fixed to the winding wheel (202b), a support shaft (202c) is fixed to one side of the winding wheel (202b), and a support plate (202d) is rotatably connected to the outside of the support shaft (202c) via a bearing, the top of which is fixed to the inner top wall of the housing (101); A cutting assembly (300) is disposed within the housing (101) and includes a cutting element (301) disposed above the clamping element (201). It includes a support frame (301a) disposed within the housing (101), and a cutter (301b) disposed within the support frame (301a). A telescopic rod (301c) is fixed to one side of the support frame (301a), and a positioning plate (301d) is movably connected to the outside of the telescopic rod (301c). The top of the positioning plate (301d) is fixed to the inner top wall of the housing (101). A threaded sleeve (301e) is rotatably connected to one side of the cutter (301b) via a bearing. A threaded rod (301f) is threadedly connected to the inside of the threaded sleeve (301e), and a stabilizing block (301g) is rotatably connected to the outside of the threaded sleeve (301e) via a bearing. The cutting assembly (300) also includes a pusher (302) disposed above the cutting assembly (301), including a pressing rod (302a). The pressing rod (302a) is located on top of the stabilizing block (301g). One end of the pressing rod (302a) is inclined. A threaded post (302b) is internally threaded to the pressing rod (302a). A force-bearing plate (302c) is rotatably connected to the outside of the threaded post (302b) through a bearing. The force-bearing plate (302c) cooperates with the movable plate (201a). One end of the threaded post (302b) extends through to the outside of the outer shell (101) and is movably connected to the outer shell (101). The moving component (200) further includes a transmission component (203) disposed on one side of the pulling component (202). The transmission component (203) includes a gear (203a), which is fixed to the outside of the support shaft (202c). A toothed disc (203b) is provided at the bottom of the gear (203a), and the toothed disc (203b) meshes with the gear (203a). The diameter of the toothed disc (203b) is larger than that of the gear (203a). The moving component (200) also includes a pressing element (205) disposed on one side of the transmission element (203), including a handle (205a). The handle (205a) is fixed to the bottom of the housing (101). A rotating rod (205b) is provided on one side of the handle (205a). The rotating rod (205b) is hinged to the handle (205a) through a hinge plate. A guide rail (205c) is fixed on one side of the rotating rod (205b). A stabilizing column (203c) is fixed to one side of the gear disk (203b). A fixing plate (203d) is rotatably connected to the outside of the stabilizing column (203c) via a bearing. The fixing plate (203d) is fixed to the inner bottom wall of the outer shell (101). A rack (203e) is provided at the bottom of the gear disk (203b). The rack (203e) meshes with the gear disk (203b). A guide shaft (205d) is fixed to one side of the rack (203e). The guide shaft (205d) is slidably connected to the guide rail (205c). The top of the outer shell (101), and the part above the force plate (302c) and the cutter (301b), is made of transparent material and is equipped with a scale. The movement position of the force plate (302c) and the cutter (301b) can be observed through the scale, and the adjustment position of the two can be clearly known. When sampling rice leaves, the leaves are inserted into the outer shell (101) through the slot (101-1). Since the tip of the leaf is relatively hard, when the tip of the leaf contacts the movable plate (201a), if the leaf continues to move into the outer shell (101), the resistance of the movable plate (201a) will cause the part of the leaf outside the outer shell (101) to bend. At this time, it indicates that the leaf has contacted the movable plate (201a) and stops the leaf from moving into the outer shell (101). At this time, press the rotating rod (205b), and drive the rack (203e) to move through the cooperation of the guide shaft (205d) and the guide rail (205c). When the rack (203e) moves, it will drive the gear plate (203b) to rotate, so that the gear plate (203b) can drive the gear (203a) to rotate, and the gear (203a) can drive the support shaft (202c) and the winding wheel (202b) to rotate. When the winding wheel (202b) rotates, it winds up the pull rope (202a), and the pull rope (202a) drives the movable plate (201a) to move. The movable plate (201a) drives the clamping plate (201b) to move. When the clamping plate (201b) moves, it will drive the fixed shaft (201d) to move along the inclined surface of the guide rail (201e) and cause the two clamping plates (201b) to move closer to each other. In this way, the blade end can be clamped and fixed by the two clamping plates (201b). As the movable plate (201a) moves, the blade moves into the housing (101). When the blade moves into the housing (101), the user needs to move the housing (101) closer to the blade to avoid pulling force on the blade, which could cause the blade to break. When the movable plate (201a) contacts the force plate (302c), it pushes the force plate (302c) to move. The force plate (302c) then drives the threaded column (302b) and the extrusion rod (302a) to move, causing the extrusion rod (302a) to press against the stabilizing block (301g) at an angle. This pushes the stabilizing block (301g) downward, which in turn drives the threaded sleeve (301e) downward. The threaded sleeve (301e) and the threaded rod (301f) then drive the two cutters (301b) downward, causing the cutters (301b) to cut the blade. The leaf cut between the two cutters (301b) is used as the leaf for testing. The leaf cut between the cutter (301b) and the winding wheel (202b) inside the outer shell (101) near the center is the part that is not needed at the end. At this time, the sampling of rice leaves is completed. In the process of sampling multiple rice plants, the repeated operation can make the sample length consistent each time and the length of the end cut the same. This can make the differences in disease manifestations and physiological state smaller and make the test results stable. A stabilizing rod (201a-2) is fixed to one side of the movable plate (201a). A stabilizing sleeve (201a-3) is movably connected to the outside of the stabilizing rod (201a-2). One end of the stabilizing sleeve (201a-3) is fixed to the inner wall of the outer shell (101). A first spring (201a-4) is fixed to one end of the stabilizing rod (201a-2). The other end of the first spring (201a-4) is fixed to the inner wall of the stabilizing sleeve (201a-3). After the blade is cut, the first spring (201a-4) applies a pushing force to the stabilizing rod (201a-2), and the stabilizing rod (201a-2) drives the movable plate (201a) to reset, so that the blade can be sampled again.

2. The leaf sampling device for rice disease detection as described in claim 1, characterized in that: A retaining sleeve (203g) is fixed to one side of the fixing plate (203d), and a retaining strip (203f) is fixed to one side of the rack (203e). The retaining strip (203f) is movably connected to the retaining sleeve (203g).

3. The leaf sampling device for rice disease detection as described in claim 2, characterized in that: The rotating rod (205b) is inclined.

4. The leaf sampling device for rice disease detection as described in claim 3, characterized in that: A positioning block (301g-1) is fixed on one side of the stabilizing block (301g), and a positioning column (301g-2) is movably connected inside the positioning block (301g-1). The top of the positioning column (301g-2) is fixed to the inner wall of the outer shell (101).

5. The leaf sampling device for rice disease detection as described in claim 4, characterized in that: A third spring (301b-1) is fixed to the top of the cutter (301b), and the top of the third spring (301b-1) is fixed to the inner wall of the outer shell (101).

6. The leaf sampling device for rice disease detection as described in claim 5, characterized in that: A fourth spring (302a-1) is fixed to one side of the extrusion rod (302a), and an installation block (302a-2) is fixed to the inner top wall of the outer shell (101). One end of the fourth spring (302a-1) is fixed to the installation block (302a-2), and a stop block (302a-3) is fixed to one side of the extrusion rod (302a).

7. The leaf sampling device for rice disease detection as described in claim 6, characterized in that: The pull rope (202a) is fitted with a positioning sleeve (202e) on the outside, and the positioning sleeve (202e) is fixed to the fixing plate (203d) by a connecting rod.

8. The leaf sampling device for rice disease detection as described in claim 7, characterized in that: A knob (301e-1) is fixed to the outside of the threaded sleeve (301e), and the outside of the knob (301e-1) is provided with anti-slip texture.

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