Leaf sampling device for rice disease detection

Abstract

The invention relates to the technical field of rice detection, and discloses a leaf sampling device for rice disease detection, which comprises a shell, and one side of the shell is provided with a slot; the moving assembly is arranged in the shell and comprises a clamping piece, the clamping piece is arranged in the shell and 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 to one side of the clamping plate, a clamping groove is formed in the movable plate, the clamping block slides in the clamping 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 shell and matched with the fixed shaft. And the end part of the guide rail is inclined. Through cooperation of the moving assembly and the cutting assembly, when multiple blades are collected, it can be guaranteed that the length of the cut-off blade and the length of the collected blade are the same each time, and then the consistency of data detection can be guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of rice detection, in particular to a leaf sampling device for rice disease detection. Background Art

[0002] When detecting rice diseases, it is necessary to sample rice leaves. When sampling, the yellowing ends of the leaves are generally pinched off, and then a part of the leaves are pinched off for testing. The yellowing of the ends of the leaves may be caused by non-disease factors such as natural aging and mechanical damage. Pinching off this part can avoid interfering with the accurate judgment of the disease, so that the detection is more focused on the disease symptom area that may be caused by pathogens, etc. When sampling, multiple rice leaves are generally collected. Most of the existing sampling methods use scissors or manual pinching. Both methods cannot guarantee the same length of the pinched leaves when collecting multiple leaves. Different pinching lengths will cause differences between samples, making it difficult to compare and analyze subsequent test results, reducing the reliability of the data, and when sampling, it cannot guarantee the consistency of the length of the collected samples. Leaves of different lengths may be in different growth stages or affected by different environments. There may be large differences in their disease manifestations and physiological states, which makes 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 existing leaf sampling devices for detecting rice diseases, the present invention is proposed.

[0004] Therefore, the problem to be solved by the present invention is that leaf sampling is inaccurate.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a leaf sampling device for rice disease detection, comprising a housing, a slot being provided on one side of the housing; A moving assembly is arranged in the shell, including a clamping member, which is arranged in the shell and includes 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 slot is opened on the movable plate, the clamping block slides in the clamping slot, a fixed 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 cooperates with the fixed shaft, and the end of the guide rail is inclined; The moving assembly also includes a pulling member, which is arranged in the shell and includes a pull rope, one end of which is fixed to the movable plate, a winding wheel is arranged in the shell, the other end of which 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 outer side of the support shaft through a bearing, and the top of the support plate is fixed to the inner top wall of the shell; A cutting assembly is arranged in the shell, including a cutting piece, which is arranged above the clamping piece and includes a support frame, the support frame is arranged in the shell, a cutter is arranged in the support frame, a telescopic rod is fixed to one side of the support frame, 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 shell, a threaded sleeve is rotatably connected to one side of the cutter through 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 through a bearing; The cutting assembly also includes a pushing member, which is arranged above the cutting member and includes an extrusion rod, wherein the extrusion rod is located at the top of the stabilizing block, and the bottom of one end of the extrusion rod is inclined. A threaded column is connected to the inner thread of the extrusion rod, and a force plate is rotatably connected to the outer side of the threaded column through a bearing. The force plate cooperates with the movable plate, and one end of the threaded column penetrates to the outside of the outer shell and is movably connected to the outer shell.

[0006] As a preferred embodiment of the leaf sampling device for detecting rice diseases described in the present invention, the moving component further comprises a transmission member, which is arranged on one side of the pulling member and comprises a gear, the gear is fixed to the outside of the supporting shaft, a toothed disc is arranged at the bottom of the gear, the toothed disc is meshed with the gear, the diameter of the toothed disc is larger than the gear, a stabilizing column is fixed on one side of the toothed disc, a fixing plate is rotatably connected to the outside of the stabilizing column through a bearing, the fixing plate is fixed to the inner bottom wall of the outer shell, a rack is arranged at the bottom of the toothed disc, the rack is meshed with the toothed disc, a clamping sleeve is fixed on one side of the fixing plate, a clamping strip is fixed on one side of the rack, and the clamping strip is movably connected to the inside of the clamping sleeve.

[0007] As a preferred embodiment of the leaf sampling device for detecting rice diseases of the present invention, the movable assembly further comprises a pressing member, which is arranged on one side of the transmission member and comprises a handle, the handle is fixed to the bottom of the outer shell, a rotating rod is arranged on one side of the handle, the rotating rod is hinged to the handle through a hinge plate, a guide rail is fixed on one side of the rotating rod, a guide shaft is fixed on one side of the rack, the guide shaft is slidably connected to the guide rail, and the rotating rod is inclined.

[0008] As a preferred embodiment of the leaf sampling device for rice disease detection of the present invention, a stabilizing rod is fixed to one side of the movable plate, a stabilizing sleeve is movably connected to the outer side 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.

[0009] As a preferred solution of the leaf sampling device for rice disease detection of the present invention, a support block is fixed to one side of the clamping block, and a second spring is fixed to one side of the support block.

[0010] As a preferred solution of the leaf sampling device for rice disease detection of the present 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 end of the positioning column is fixed to the inner wall of the shell.

[0011] As a preferred solution of the leaf sampling device for rice disease detection of the present 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 shell.

[0012] As a preferred embodiment of the leaf sampling device for rice disease detection of the present invention, a fourth spring is fixed to one side of the squeezing rod, a mounting block is fixed to the inner top wall of the shell, one end of the fourth spring is fixed to the mounting block, and a stop block is fixed to one side of the squeezing rod.

[0013] As a preferred solution of the leaf sampling device for rice disease detection of the present invention, a positioning sleeve is provided on the outer side of the pull rope, and the positioning sleeve is fixed to the fixing plate through a connecting rod.

[0014] As a preferred solution of the leaf sampling device for rice disease detection of the present invention, a knob is fixed on the outside of the threaded sleeve, and anti-slip grooves are arranged on the outside of the knob.

[0015] The beneficial effect of the present invention is that through the cooperation of the moving component and the cutting component, when collecting multiple blades, it can be ensured that the length of the blade cut off each time is the same as the length of the collected blade, thereby ensuring the consistency of data detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them: Figure 1 This is an overall diagram of the leaf sampling device for rice disease detection.

[0017] Figure 2 This is an overall upward structural diagram of a leaf sampling device for rice disease detection.

[0018] Figure 3 This is a cross-sectional structural diagram of the outer shell of a leaf sampling device for detecting rice diseases.

[0019] Figure 4 This is a structural diagram of the clamping parts of the leaf sampling device for rice disease detection.

[0020] Figure 5This is a structural diagram of the cutting parts of a leaf sampling device for rice disease detection.

[0021] Figure 6 Leaf sampling device for rice disease detection Figure 5 A partial enlarged structural diagram in the middle.

[0022] Figure 7 This is a structural diagram of the transmission components of a leaf sampling device for rice disease detection.

[0023] Figure 8 Leaf sampling device for rice disease detection Figure 7 A partial enlarged structural diagram of point B in the middle.

[0024] In the figure: 101 housing, 101-1 slot, 200 moving component, 201 clamping member, 201a movable plate, 201b clamping plate, 201c card block, 201a-1 card slot, 201d fixed shaft, 201e guide rail, 202 pulling member, 202a pull rope, 202b reel, 202c support shaft, 202d support plate, 300 cutting component, 301 cutting member, 301a support frame, 301b cutter, 301c telescopic rod, 301d positioning plate, 301e threaded sleeve, 301f threaded rod, 301g stabilizing block, 302 pushing member, 302a extrusion rod, 302b threaded column, 302c force plate, 203 transmission Moving part, 203a gear, 203b gear plate, 203c stabilizing column, 203d fixing plate, 203e rack, 203g clamping sleeve, 203f clamping strip, 204 pressing part, 205a handle, 205b rotating rod, 205c guide rail, 205d guide shaft, 201a-2 stabilizing rod, 201a-3 stabilizing 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 stopper, 202e positioning sleeve, 301e-1 knob. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] 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 term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0028] Example 1 Reference Figure 3-Figure 8 , which is the first embodiment of the present invention, provides a leaf sampling device for detecting rice diseases. The leaf sampling device for detecting rice diseases comprises a housing 101, and a slot 101-1 is provided on one side of the housing 101.

[0029] The shell 101 is used to store the collected blades. The blades can be inserted into the shell 101 through the slot 101-1. A receiving plate is provided at the bottom of the shell 101. One side of the receiving plate is rotatably connected to the shell 101 through a rotating shaft. The receiving plate can be opened downward. The cut blades can be stored through the receiving plate. The receiving plate can be opened downward to take the collected blades inside the shell 101.

[0030] The movable component 200 is arranged in the shell 101, including a clamping member 201, which is arranged in the shell 101 and includes a movable plate 201a. The movable plate 201a is located in the shell 101, and a clamping plate 201b is arranged on one side of the movable plate 201a. A clamping block 201c is fixed on one side of the clamping plate 201b. A clamping slot 201a-1 is opened on the movable plate 201a, and the clamping block 201c slides in the clamping slot 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 shell 101. The guide rail 201e cooperates with the fixed shaft 201d, and the end of the guide rail 201e is inclined.

[0031] There are two splints 201b, which are respectively located above and below one side of the movable plate 201a. Two clamping blocks 201c are fixed on one splint 201b, which are respectively fixed at the two ends of one side of the splint 201b. The clamping block 201c is T-shaped. The splint 201b is connected to the movable plate 201a through the cooperation of the clamping block 201c and the clamping slot 201a-1, so that the movable plate 201a can drive the splint 201b to move, and the splint 201b can also move up and down on one side of the movable plate 201a.

[0032] Both sides of the clamping plate 201b are fixed with fixed shafts 201d. There are two groups of guide rails 201e, which are respectively located on both sides of the clamping plate 201b. Each group of guide rails 201e has two guide rails, which correspond to the upper and lower clamping plates 201b respectively.

[0033] When sampling rice leaves, the leaves are inserted into the housing 101 through the slot 101-1. Since the end of the leaf is relatively hard, when the end of the leaf contacts the movable plate 201a, if the leaf continues to move into the housing 101, the resistance of the movable plate 201a will cause a part of the leaf outside the housing 101 to bend. At this time, the surface of the leaf has contacted the movable plate 201a, causing the leaf to stop moving into the housing 101.

[0034] 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 make the two clamping plates 201b move towards a close position, so that the end of the blade can be clamped and fixed by the two clamping plates 201b, and as the movable plate 201a moves, the blade is driven to move into the shell 101, and when the blade moves into the shell 101, the user needs to move the shell 101 closer to the direction of the blade, so as to avoid pulling force on the blade, which may cause the blade to break.

[0035] A buffer pad is fixed on the adjacent side of the two clamping plates 201b to prevent the blades from breaking when the clamping plates 201b clamp the blades.

[0036] The moving component 200 also includes a pulling member 202, which is arranged in the outer shell 101, including a pull rope 202a, one end of the pull rope 202a is fixed to the movable plate 201a, and a winding wheel 202b is arranged in the outer shell 101, and the other end of the pull rope 202a is fixed to the winding wheel 202b, and a support shaft 202c is fixed to one side of the winding wheel 202b, and the outer side of the support shaft 202c is rotatably connected to a support plate 202d through a bearing, and the top of the support plate 202d is fixed to the top wall inside the outer shell 101.

[0037] There are two support shafts 202c, which are fixed on both sides of the winding wheel 202b respectively. The number of support plates 202d corresponds to the support shafts 202c. The winding wheel 202b is supported by the cooperation of the two. When the winding wheel 202b rotates, the pull rope 202a can be reeled in, so that the pull rope 202a can drive the movable plate 201a to move.

[0038] The cutting assembly 300 is arranged in the shell 101, including a cutting piece 301, which is arranged above the clamping piece 201, and includes a support frame 301a. The support frame 301a is arranged in the shell 101, and a cutter 301b is arranged in 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 outer side of the telescopic rod 301c. The top of the positioning plate 301d is fixed to the inner top wall of the shell 101, and a threaded sleeve 301e is rotatably connected to one side of the cutter 301b through a bearing, and a threaded rod 301f is threadedly connected to the inner thread of the threaded sleeve 301e, and a stabilizing block 301g is rotatably connected to the outer side of the threaded sleeve 301e through a bearing.

[0039] There are two support frames 301a and two cutters 301b, which are located on both sides of the shell 101 respectively. One cutter 301b is located on the inner wall of the shell 101, and the support frame 301a is fixed to the inner top wall of the shell 101. The other cutter 301b is located near the center of the shell 101, and the support frame 301a is in a state of being able to move horizontally.

[0040] The telescopic rod 301c is telescopic, and there are two of them, which are fixed at both ends of one side of the support frame 301a respectively. The telescopic rod 301c is used to connect the two support frames 301a, so that the movable support frame 301a can be supported and positioned to prevent it from tilting downward. The positioning plate 301d is used to support and position the telescopic rod 301c.

[0041] One end of the threaded rod 301f is fixed to the cutter 301b near the center of the housing 101. Through slots are provided on the two support frames 301a, and the threaded rod 301f and the threaded sleeve 301e slide in the two through slots respectively.

[0042] When the blade moves a specified length into the housing 101, the two cutters 301b will move downward at the same time and cut the blade. The blade cut between the two cutters 301b is used as the detected blade, and the blade cut between the cutter 301b near the center position inside the housing 101 and the winding wheel 202b is the unwanted part of the end. In this way, the sampling of rice leaves can be completed. In the process of sampling multiple rice, repeating the above operation can make the length of the sample collected each time consistent, and the length of the end cut is the same, which can reduce the difference in disease manifestation and physiological state, and make the detection result stable.

[0043] By rotating the threaded sleeve 301e, the threaded rod 301f can be driven to move, and the threaded rod 301f drives the cutter 301b and the support frame 301a to move, so that the distance between the two cutters 301b can be adjusted, and then when cutting the leaves, samples of different lengths can be collected according to the different states of the rice, so as to ensure that the data of rice detection is more accurate.

[0044] The cutting assembly 300 also includes a pushing member 302, which is arranged above the cutting member 301, and includes an extrusion rod 302a, the extrusion rod 302a is located at the top of the stabilizing block 301g, the bottom of one end of the extrusion rod 302a is inclined, the internal thread of the extrusion rod 302a is connected to a threaded column 302b, the outer side of the threaded column 302b is rotatably connected to a force plate 302c through a bearing, the force plate 302c cooperates with the movable plate 201a, one end of the threaded column 302b passes through the outside of the outer shell 101, and is movably connected to the outer shell 101.

[0045] Two stabilizing frames are fixed to the inner top wall of the housing 101 , and the extrusion rod 302 a is movably connected to the stabilizing frames to support and position the extrusion rod 302 a .

[0046] The force-bearing plate 302c is rectangular, with its top in contact with the inner top wall of the housing 101 and movably connected to the housing 101. The length of the bottom of the force-bearing plate 302c is sufficient to contact with the movable plate 201a.

[0047] When the movable plate 201a contacts the force-bearing plate 302c, it will push the force-bearing plate 302c to move, and drive the threaded column 302b and the extrusion rod 302a to move through the force-bearing plate 302c, so that the extrusion rod 302a will squeeze the oblique surface of the stabilizing block 301g, thereby pushing the stabilizing block 301g to move downward, and drive the threaded sleeve 301e to move downward through the stabilizing block 301g, so that the threaded sleeve 301e and the threaded rod 301f can drive the two cutters 301b to move downward, and the cutters 301b can cut off the blades.

[0048] Because the cutter 301b will move downward only when the movable plate 201a and the force plate 302c are moved, the distance between the force plate 302c and the cutter 301b is the unwanted length of the blade end. By rotating the threaded column 302b, the force plate 302c can be driven to move, so that the distance between the force plate 302c and the cutter 301b changes, and the unwanted length of the blade end can be adjusted, so that the cutting adjustment can be performed according to the actual situation of the blade end.

[0049] The top of the housing 101, and the position above the force-bearing plate 302c and the cutter 301b, is made of a transparent material, and a scale is provided on it. The moving positions of the force-bearing plate 302c and the cutter 301b can be observed through the scale, so that the adjustment positions of the two can be clearly known.

[0050] Example 2 Reference Figure 1-Figure 8 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0051] Specifically, the moving component 200 also includes a transmission member 203, which is arranged on one side of the pulling member 202, including a gear 203a, which is fixed to the outside of the support shaft 202c, and a toothed disc 203b is arranged at the bottom of the gear 203a, which is meshed with the gear 203a, and the diameter of the toothed disc 203b is larger than the gear 203a, and a stabilizing column 203c is fixed to one side of the toothed disc 203b, and a fixed plate 203d is rotatably connected to the outside of the stabilizing column 203c through a bearing, and the fixed plate 203d is fixed to the inner bottom wall of the outer shell 101, and a rack 203e is arranged at the bottom of the toothed disc 203b, which is meshed with the toothed disc 203b, and a clamping sleeve 203g is fixed to one side of the fixed plate 203d, and a clamping strip 203f is fixed to one side of the rack 203e, and the clamping strip 203f is movably connected to the inside of the clamping sleeve 203g.

[0052] Since the diameter of the toothed disc 203b is larger than that of the gear 203a, the toothed disc 203b will drive the gear 203a to rotate an excessive number of circles after rotating a relatively small number of circles, so that the gear 203a can drive the support shaft 202c and the winding wheel 202b to rotate a relatively large number of circles, so that the winding wheel 202b can drive the movable plate 201a to move a longer stroke through the pull rope 202a.

[0053] When the rack 203e moves, it drives the toothed disc 203b to rotate, so that the toothed disc 203b drives the gear 203a to rotate.

[0054] The clamping strip 203f is T-shaped, and the rack 203e is positioned by the cooperation between the clamping strip 203f and the clamping sleeve 203g to prevent the rack 203e from being offset during movement.

[0055] Specifically, the moving component 200 also includes a pressing member 204, which is arranged on one side of the transmission member 203, including a handle 205a, the handle 205a is fixed to the bottom of the shell 101, a rotating rod 205b is arranged 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, and the rotating rod 205b is inclined.

[0056] The handle 205a can facilitate the user to carry out the operation of taking the housing 101, 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.

[0057] Specifically, 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, and the other end of the first spring 201a-4 is fixed to the inner wall of the stabilizing sleeve 201a-3.

[0058] The movable plate 201a is supported and positioned by the cooperation of the stabilizing rod 201a-2 and the stabilizing sleeve 201a-3 to prevent it from shifting during movement. When the blade is cut off, the first spring 201a-4 can apply thrust to the stabilizing rod 201a-2, and the movable plate 201a can be reset by the stabilizing rod 201a-2, so that the blade can be sampled again.

[0059] Specifically, a supporting block 201c-1 is fixed to one side of the clamping block 201c, and a second spring 201c-2 is fixed to one side of the supporting block 201c-1.

[0060] The number of the supporting blocks 201c-1 corresponds to the number of the clamping blocks 201c, and a second spring 201c-2 is fixed between two supporting blocks 201c-1.

[0061] When the movable plate 201a is reset, the second spring 201c-2 can apply a thrust to the two support blocks 201c-1, and the support block 201c-1 can drive the clamping block 201c and the clamping plate 201b to move, so that the clamping plate 201b can be reset.

[0062] Specifically, a positioning block 301g-1 is fixed on one side of the stabilizing block 301g, a positioning column 301g-2 is movably connected inside the positioning block 301g-1, and the top of the positioning column 301g-2 is fixed to the inner wall of the shell 101. The stabilizing block 301g is positioned by the cooperation of the two to prevent it from shifting during movement.

[0063] Example 3 Reference Figure 1-Figure 8 , which is the third embodiment of the present invention, and is based on the first two embodiments.

[0064] Specifically, a third spring 301b - 1 is fixed to the top of the cutter 301b , and the top end of the third spring 301b - 1 is fixed to the inner wall of the housing 101 .

[0065] When the squeezing rod 302a is reset, the third spring 301b-1 can apply an upward pulling force to the cutter 301b to reset the cutter 301b.

[0066] Specifically, a fourth spring 302a-1 is fixed to one side of the extrusion rod 302a, a mounting block 302a-2 is fixed to the top wall of the housing 101, one end of the fourth spring 302a-1 is fixed to the mounting block 302a-2, and a stopper 302a-3 is fixed to one side of the extrusion rod 302a.

[0067] After the movable plate 201a is reset, the fourth spring 302a-1 applies a pulling force to the extrusion rod 302a, so that the extrusion rod 302a can be reset. When the extrusion rod 302a pushes the stabilizing block 301g to move downward and the stopper 302a-3 contacts the stabilizing block 301g, the extrusion rod 302a can be restricted so that it cannot move further, thereby preventing the extrusion rod 302a from moving too much and separating from the top of the stabilizing block 301g.

[0068] Specifically, a positioning sleeve 202e is sleeved on the outer side of the pull rope 202a, and the positioning sleeve 202e is fixed to the fixing plate 203d through a connecting rod.

[0069] The connecting rod is L-shaped and is used to fix the positioning sleeve 202e and to position and guide the pull rope 202a through the positioning sleeve 202e.

[0070] Specifically, a knob 301e-1 is fixed on the outside of the threaded sleeve 301e, and anti-slip grooves are arranged on the outside of the knob 301e-1.

[0071] A through hole is provided at the top of the housing 101 and above the knob 301e-1. The user can insert a finger into the housing 101 through the through hole and turn the knob 301e-1 to adjust the threaded sleeve 301e.

[0072] In summary, the leaf sampling device for rice disease detection has the following advantages: 1. When sampling leaves of multiple rice plants, the length of leaves sampled from the same batch can be made the same, and the length of the ends of multiple rice leaves cut off can be made the same, so as to ensure the consistency of the physical properties of each sample, so that when conducting disease detection and other analyses, the interference factors caused by the difference in sample length are eliminated; Second, the length of the sampling detection blade can be adjusted to meet various detection needs, improving the versatility and applicability of the equipment. 3. The ability to adjust the length of the cut-off end of the rice leaf can accurately remove non-critical parts that may interfere with disease detection, ensuring that the detection is focused on the leaf area related to the main disease, thereby improving the accuracy of the test results.

[0073] During use, when sampling rice leaves, the leaves are inserted into the housing 101 through the slot 101-1. Since the end of the leaf is relatively hard, when the end of the leaf contacts the movable plate 201a, if the leaf continues to move into the housing 101, the resistance of the movable plate 201a will cause a part of the leaf outside the housing 101 to bend. At this time, the surface of the leaf has contacted the movable plate 201a, causing the leaf to stop moving into the housing 101.

[0074] At this time, the rotating rod 205b is pressed, and the rack 203e is driven to move through the cooperation of the guide shaft 205d and the guide rail 205c. When the rack 203e moves, it will drive the toothed disc 203b to rotate, so that the toothed disc 203b can drive the gear 203a to rotate, and the gear 203a support shaft 202c and the winding wheel 202b to rotate. When the winding wheel 202b rotates, the pull rope 202a can be wound up, so that the pull rope 202a can drive the movable plate 201a to move.

[0075] The clamping plate 201b is driven to move by the movable plate 201a. 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 make the two clamping plates 201b move towards a close position, so that the end of the blade can be clamped and fixed by the two clamping plates 201b, and as the movable plate 201a moves, the blade is driven to move into the shell 101. When the blade moves into the shell 101, the user needs to move the shell 101 closer to the blade to avoid pulling force on the blade, which may cause the blade to break.

[0076] When the movable plate 201a contacts the force-bearing plate 302c, it will push the force-bearing plate 302c to move, and drive the threaded column 302b and the extrusion rod 302a to move through the force-bearing plate 302c, so that the extrusion rod 302a will squeeze the oblique surface of the stabilizing block 301g, thereby pushing the stabilizing block 301g to move downward, and drive the threaded sleeve 301e to move downward through the stabilizing block 301g, so that the threaded sleeve 301e and the threaded rod 301f can drive the two cutters 301b to move downward, and the cutters 301b can cut off the blades.

[0077] The leaves cut between the two cutters 301b are used as the detected leaves, and the leaves cut between the cutter 301b near the center position inside the shell 101 and the winding wheel 202b are the unwanted parts at the ends, so that the sampling of rice leaves can be completed. In the process of sampling multiple rice plants, repeating the above operation can make the length of the samples collected each time consistent, and the length of the cut ends is the same, thereby reducing the differences in disease manifestations and physiological states, making the detection results stable.

[0078] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A leaf sampling device for rice disease detection, characterized in that: include, A housing (101), wherein a slot (101-1) is provided on one side of the housing (101); A movable assembly (200) is arranged in the housing (101), comprising a clamping member (201), which is arranged in the housing (101) and comprises a movable plate (201a), wherein the movable plate (201a) is located in the housing (101), a clamping plate (201b) is arranged on one side of the movable plate (201a), a clamping block (201c) is fixed on one side of the clamping plate (201b), a clamping slot (201a-1) is provided on the movable plate (201a), the clamping block (201c) slides in the clamping slot (201a-1), a fixed shaft (201d) is fixed on one side of the movable plate (201a), 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; The moving assembly (200) further comprises a pulling member (202), which is arranged in the housing (101) and comprises a pull rope (202a), one end of which is fixed to the movable plate (201a), a winding wheel (202b) is arranged in 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), the outer side of the support shaft (202c) is rotatably connected to a support plate (202d) via a bearing, and the top of the support plate (202d) is fixed to the inner top wall of the housing (101); A cutting assembly (300) is arranged in the housing (101), comprising a cutting piece (301), arranged above the clamping piece (201), and comprising a support frame (301a), wherein the support frame (301a) is arranged in the housing (101), wherein a cutter (301b) is arranged in the support frame (301a), wherein a telescopic rod (301c) is fixed to one side of the support frame (301a), wherein a positioning plate (301d) is movably connected to the outer side of the telescopic rod (301c), wherein the top of the positioning plate (301d) is fixed to the inner top wall of the housing (101), wherein one side of the cutter (301b) is rotatably connected to a threaded sleeve (301e) via a bearing, wherein the threaded sleeve (301e) is internally threadedly connected to a threaded rod (301f), and wherein the threaded sleeve (301e) is externally rotatably connected to a stabilizing block (301g) via a bearing; The cutting assembly (300) further comprises a pushing member (302) which is arranged above the cutting member (301) and comprises an extrusion rod (302a). The extrusion rod (302a) is located at the top of the stabilizing block (301g). The bottom of one end of the extrusion rod (302a) is inclined. The extrusion rod (302a) is internally threadedly connected to a threaded column (302b). The outer side of the threaded column (302b) is rotatably connected to a force-bearing plate (302c) via a bearing. The force-bearing plate (302c) cooperates with the movable plate (201a). One end of the threaded column (302b) penetrates to the outside of the outer shell (101) and is movably connected to the outer shell (101).

2. The leaf sampling device for rice disease detection according to claim 1, characterized in that: The moving assembly (200) further comprises a transmission member (203), which is arranged on one side of the pulling member (202) and comprises a gear (203a), wherein the gear (203a) is fixed to the outside of the supporting shaft (202c), a toothed disc (203b) is arranged at the bottom of the gear (203a), the toothed disc (203b) is meshed with the gear (203a), the diameter of the toothed disc (203b) is larger than that of the gear (203a), a stabilizing column (203c) is fixed to one side of the toothed disc (203b), and the stabilizing column (203c) is fixed to one side of the toothed disc (203b). The outer side of the fixed column (203c) is rotatably connected to a fixed plate (203d) via a bearing, the fixed plate (203d) is fixed to the inner bottom wall of the housing (101), a rack (203e) is provided at the bottom of the toothed disc (203b), the rack (203e) is meshed with the toothed disc (203b), a clamping sleeve (203g) is fixed to one side of the fixed plate (203d), a clamping strip (203f) is fixed to one side of the rack (203e), and the clamping strip (203f) is movably connected to the inside of the clamping sleeve (203g).

3. The leaf sampling device for rice disease detection according to claim 2, characterized in that: The moving component (200) further comprises a pressing member (204) which is arranged on one side of the transmission member (203) and comprises a handle (205a). The handle (205a) is fixed to the bottom of the housing (101). A rotating rod (205b) is arranged on one side of the handle (205a). The rotating rod (205b) is hinged to the handle (205a) via a hinge plate. A guide rail (205c) is fixed to one side of the rotating rod (205b). 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 rotating rod (205b) is inclined.

4. The leaf sampling device for rice disease detection according to claim 2 or 3, characterized in that: 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), and the other end of the first spring (201a-4) is fixed to the inner wall of the stabilizing sleeve (201a-3).

5. The leaf sampling device for rice disease detection according to claim 4, characterized in that: A support block (201c-1) is fixed on one side of the clamping block (201c), and a second spring (201c-2) is fixed on one side of the support block (201c-1).

6. The leaf sampling device for rice disease detection according to claim 5, characterized in that: A positioning block (301g-1) is fixed to one side of the stabilizing block (301g), a positioning column (301g-2) is movably connected inside the positioning block (301g-1), and a top end of the positioning column (301g-2) is fixed to the inner wall of the outer shell (101).

7. The leaf sampling device for rice disease detection according to claim 5 or 6, characterized in that: A third spring (301b-1) is fixed to the top of the cutter (301b), and the top end of the third spring (301b-1) is fixed to the inner wall of the outer shell (101).

8. The leaf sampling device for rice disease detection according to claim 7, characterized in that: A fourth spring (302a-1) is fixed to one side of the extrusion rod (302a), a mounting block (302a-2) is fixed to the inner top wall of the housing (101), one end of the fourth spring (302a-1) is fixed to the mounting block (302a-2), and a stopper (302a-3) is fixed to one side of the extrusion rod (302a).

9. The leaf sampling device for rice disease detection according to claim 8, characterized in that: A positioning sleeve (202e) is sleeved on the outside of the pull rope (202a), and the positioning sleeve (202e) is fixed to the fixing plate (203d) via a connecting rod.

10. The leaf sampling device for rice disease detection according to claim 8 or 9, characterized in that: A knob (301e-1) is fixed on the outside of the threaded sleeve (301e), and anti-slip grooves are arranged on the outside of the knob (301e-1).

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