Leaf sampling and collecting device for tobacco virus disease detection

Abstract

The invention relates to the technical field of leaf collection, and discloses a leaf sampling and collecting device for tobacco virus disease detection, the leaf sampling and collecting device comprises a base, an adjusting assembly for controlling a moving rod to slide up and down is arranged on the base, the adjusting assembly comprises a swing arm hinged to the top surface of the base, and a swing rod is hinged to the swing arm; a second mounting groove is formed in the upper mounting seat, a moving seat is slidably arranged in the second mounting groove, the other end of the swing rod is hinged to the moving seat, a connecting frame is arranged on the base, a control assembly for controlling sliding of the moving seat is arranged in the connecting frame, and a telescopic rod is arranged on the bottom face of the connecting frame. A pull rope for executing the control assembly is arranged in the telescopic rod, and an adjusting assembly enabling the pull rope to be in a tensioning state all the time is further arranged in the telescopic rod. The device can conveniently and quickly sample and collect leaves for virus disease prevention and treatment in the early stage, the middle stage and the later stage of tobacco planting, so that the practicability of the device is improved.

Description

Technical Field

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

[0002] Tobacco virus disease is a systemic disease that seriously threatens the healthy growth of tobacco plants. Tobacco is an annual herbaceous plant of the genus Nicotiana in the Solanaceae family, with thick roots, stems 0.7-2 meters high, and slightly lignified at the base. The leaves are oblong-lanceolate, lanceolate, oblong or ovate, with a gradually pointed apex and a base that gradually narrows to an ear-shaped, semi-amplexicaul stem. Tobacco grows rapidly and has tall plants. At the same time, tobacco will be affected by virus diseases during the planting process, which greatly affects the yield and quality of tobacco. Standardized collection and quantitative testing of tobacco leaves are also important requirements for the precise prevention and control of tobacco virus diseases. By collecting leaves and testing and analyzing the collected leaves, we can understand the early occurrence and severity of tobacco virus diseases, and provide a basis for the precise formulation of prevention and control strategies.

[0003] When sampling tobacco leaves during planting, a handheld sampler is usually used. First, a sampling tube is placed in the tube slot of the sampler, and then the sampler is moved to a position where the leaves can be inserted. The control handle of the sampler is manually pressed, and the sampler will make a sampling hole on the leaf. The collected leaves automatically fall into the sampling tube, and the required leaves are sampled.

[0004] The above operation can only be performed for sampling in the early stage of tobacco planting (tobacco stems are low). As tobacco grows to the middle and late stages, due to the high stems of tobacco, when sampling the upper leaves, a single handheld sampler cannot meet the height requirements and a ladder is required. In this way, when multiple samplings are performed, the ladder needs to be moved frequently. After moving to the designated location, the stability of the ladder must be ensured after it is placed (due to the presence of many trenches in the planting area). This not only causes trouble in operation, but also reduces the efficiency of leaf sampling. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the above difficulties and provide a method for conveniently and quickly sampling and collecting leaves for preventing and controlling viral diseases in the early, middle and late stages of tobacco planting.

[0006] In order to solve the above technical problems, the present invention provides a technical solution: a leaf sampling and collecting device for tobacco virus disease detection, comprising a base, an upper mounting seat and a lower mounting seat are arranged on the base from top to bottom, a moving rod with a rebound function is slidably arranged on the upper mounting seat and a sampling head is provided on the bottom surface of the moving rod, and a sampling tube for collecting leaves is detachably arranged on the lower mounting seat; The base is provided with an adjustment component for controlling the moving rod to slide up and down, and the adjustment component includes a swing arm hinged on the top surface of the base, a mounting groove 1 is provided on the swing arm, and a swing rod is hinged in the mounting groove 1, a mounting groove 2 is provided in the upper mounting seat, and a moving seat is slidably provided in the mounting groove 2, and the other end of the swing rod is hinged on the moving seat; A connecting groove is provided on the base, a connecting frame which can be quickly installed or removed is provided in the connecting groove, and a control component for controlling the sliding of the moving base is provided in the connecting frame; A telescopic rod is arranged on the bottom surface of the connection frame, a pull rope for executing the control component is arranged inside the telescopic rod, and an adjustment component for keeping the pull rope in a tensioned state is also arranged inside the telescopic rod.

[0007] As an improvement, the control component includes a gear one rotatably arranged on a connecting frame, a through groove is opened on a base above the gear one and corresponding to the moving seat, a tooth plate one is slidably arranged in the through groove and meshes with the gear one, a guide rod is provided on the tooth plate one, and the other end of the guide rod is fixedly connected to the moving seat, a transmission component connected to the pull rope is provided in the connecting frame, and the rotation of the gear one is controlled by this transmission component.

[0008] As an improvement, the transmission assembly includes a pulley 1 coaxial with the gear, a pulley 2 is rotatably provided on the connecting frame below the pulley 1, and a transmission belt is wound between the pulleys 1 and 2, a lifting seat 1 is provided above one side of the transmission belt and slidingly cooperates with the inner wall of the connecting frame, and a lifting seat 2 is provided below the other side and slidingly cooperates with the inner wall of the connecting frame, one end of the pull rope is connected to the lifting seat 1, and the other end extends to below the bottom surface of the telescopic rod and is connected to a pull ring.

[0009] As an improvement, the telescopic rod includes a cylinder body and a moving cylinder slidably matched inside the cylinder body, the adjustment assembly includes a U-shaped frame 1 fixedly arranged on the moving cylinder, a guide wheel 1 is rotatably provided inside the U-shaped frame 1, a U-shaped frame 2 is fixedly arranged on the bottom surface of the moving cylinder and a gear 2 is rotatably provided inside the U-shaped frame 2, a tooth plate 2 meshing with the gear 2 is fixedly arranged on the inner wall of the cylinder body, a tooth plate 3 meshing with the other side of the gear 2 is slidably provided inside the moving cylinder, a U-shaped frame 3 is fixedly arranged on the outer end surface of the tooth plate 3 and a movable pulley is rotatably provided inside the U-shaped frame 3, and the pull rope is sequentially wound around the movable pulley and the guide wheel 1.

[0010] As an improvement, a positioning assembly is provided between the connection frame and the connection slot to enable the two to be quickly installed or disassembled, and the positioning assembly includes a connection seat 1 and a connection seat 2 which are slidably arranged at the front and rear ends and the left and right ends of the connection slot, and both ends of the two connection seats 1 are hinged with a swing rod 2, and the other ends of the four swing rods 2 are hinged to the corresponding connection seats 2 and together form a prismatic structure that can pass through the connection frame, and the two connection seats 1 are fixedly provided with a positioning pin 1 on the opposite end faces, and a pin hole 1 for the positioning pin 1 to penetrate is provided on the connection frame, and an adjustment member for controlling any connection seat 1 to slide forward and backward is provided on the base; The upper and lower ends of the left and right ends of the connection frame are both provided with fixing seats at the corresponding positions of the second connection seat, and a linkage component is provided between the second connection seat and the connection frame, and the fixing seat is positioned by the linkage component.

[0011] As an improvement, the linkage assembly includes a wedge-shaped seat 1 fixedly arranged at the upper and lower ends of two connecting seats 2, a sliding rod with a rebound function is slidably inserted into the base corresponding to each wedge-shaped seat 1, each of the sliding rods is provided with a matching seat 1 adapted to the wedge-shaped seat 1, a positioning pin 2 which slides left and right and has a rebound function is inserted into the base corresponding to each fixed seat, the positioning pin 2 and the sliding rod are vertically arranged and a cavity is opened at the vertical position thereof, a wedge-shaped seat 2 is provided on the sliding rod in the cavity, a matching seat 2 adapted to the wedge-shaped seat 2 is provided on the positioning pin 2, and a pin hole 2 for the positioning pin 2 to penetrate is opened on the fixed seat.

[0012] As an improvement, the adjusting member is an adjusting screw corresponding to any one of the connecting seats and threadedly connected to the base, and the end of the adjusting screw extending into the connecting groove is rotatably connected to the connecting seat.

[0013] The beneficial effects of the present invention compared with the prior art are: 1. Through the detachable connection of the connection frame, the telescopic rod and the base and the execution of the control component in the telescopic rod, the connection frame and the base can be detachably connected in the early, middle and late stages of tobacco planting according to the change in the growth height of tobacco, thereby improving the practicality of the device; 2. Under the action of the positioning assembly composed of the connecting seat 1, the connecting seat 2, the swing rod 2 and the positioning pin, the connecting frame and the base can be conveniently and quickly installed or disassembled; 3. With the cooperation of the control component, the transmission component and the pull rope, when sampling the blades after installing the connection frame and the telescopic rod, the staff can hold the telescopic rod with one hand and pull the pull rope downward with the other hand to perform the operation on the control component, and then control the movement of the adjustment component to perform convenient and fast sampling operations on the blades, avoiding the frequent use of the climbing ladder by the staff; 4. Under the action of the adjustment assembly composed of the guide wheel 1, the gear 2, the gear plate 2, the gear plate 3 and the movable pulley, the tension state of the pull rope can be always guaranteed during the telescopic adjustment process of the telescopic rod, thereby improving the convenience of operating the pull rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 It is a schematic diagram of the overall structure of the present invention.

[0016] Figure 3 It is a schematic diagram of a structure without a connection frame in the present invention.

[0017] Figure 4 It is an internal structure diagram of the connection frame and the telescopic rod in the present invention.

[0018] Figure 5 This is a schematic diagram of the structure of the adjustment component in the present invention. Figure 1 .

[0019] Figure 6 This is a schematic diagram of the structure of the adjustment component in the present invention. Figure 2 .

[0020] Figure 7 It is a diagram of the internal structure of the adjustment component in the present invention.

[0021] Figure 8 It is a structural schematic diagram of the positioning component in the present invention.

[0022] Fig. 9 It is a structural schematic diagram of the linkage component in the present invention.

[0023] Fig.10 This is a schematic diagram of the structure of the telescopic rod in the present invention. Figure 1 .

[0024] Fig.11 This is a schematic diagram of the structure of the telescopic rod in the present invention. Figure 2 .

[0025] As shown in the figure: 1. Base; 111. Upper mounting seat; 112. Lower mounting seat; 113. Moving rod; 114. Sampling head; 115. Sampling tube; 116. Connecting slot; 2. Adjustment assembly; 211. Swing arm; 212. Mounting slot 1; 213. Swing rod; 214. Mounting slot 2; 215. Moving seat; 3. Connecting frame; 4. Control assembly; 411. Gear 1; 412. Through slot; 413. Tooth plate 1; 414. Guide rod; 415. Guide seat; 416. Reset spring 1; 417. Observation window; 5. Telescopic rod; 511. Cylinder; 512. Moving cylinder; 513. Pull rope; 514. Pull ring; 6. Positioning assembly; 611. Connecting seat 1; 612. Connecting seat 2; 613. Swing rod 2; 614. Positioning pin 1; 615. Fixed seat; 616. Adjustment Screw; 617, locking nut; 7, adjustment assembly; 711, U-shaped frame 1; 712, guide wheel 1; 713, U-shaped frame 2; 714, gear 2; 715, tooth plate 2; 716, tooth plate 3; 717, U-shaped frame 3; 718, movable pulley; 719, avoidance groove; 720, groove body; 721, positioning groove; 722, positioning bolt; 723, nut; 8, transmission assembly; 81 1. Pulley 1; 812. Pulley 2; 813. Drive belt; 814. Lifting seat 1; 815. Lifting seat 2; 816. Return spring 2; 817. Guide wheel 2; 818. Guide wheel 3; 9. Linkage assembly; 911. Wedge seat 1; 912. Sliding rod; 913. Matching seat 1; 914. Positioning pin 2; 915. Cavity; 916. Wedge seat 2; 917. Matching seat 2. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0027] Combined with Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 5 , Attachment Fig.10 and attached Fig.11 As shown, a leaf sampling and collecting device for tobacco virus disease detection comprises a base 1, on which an upper mounting seat 111 and a lower mounting seat 112 are arranged in sequence from top to bottom, a moving rod 113 with a rebound function is slidably arranged on the upper mounting seat 111, and a sampling head 114 is provided on the bottom surface of the moving rod 113, a drop hole is provided on the lower mounting seat 112 at a position corresponding to the sampling head 114, and a sampling tube 115 for collecting leaves is detachably provided at a position corresponding to the drop hole; The base 1 is provided with an adjustment component 2 for controlling the moving rod 113 to slide up and down, and the adjustment component 2 includes a swing arm 211 hinged on the top surface of the base 1, a mounting groove 1 212 is provided on the swing arm 211, and a swing rod 213 is hinged in the mounting groove 1 212, a mounting groove 214 is provided in the upper mounting seat 111, and a moving seat 215 is slidably provided in the mounting groove 214, and the other end of the swing rod 213 is hinged on the moving seat 215; A connection groove 116 is provided on the base 1, and a connection frame 3 that can be quickly installed or removed is provided in the connection groove 116, and a control component 4 for controlling the sliding of the moving base 215 is provided in the connection frame 3; A telescopic rod 5 is provided on the bottom surface of the connecting frame 3 , a pull rope 513 for executing the control component 4 is provided inside the telescopic rod 5 , and an adjustment component 7 is also provided inside the telescopic rod 5 to keep the pull rope 513 in a tensioned state at all times.

[0028] Through the above structure, in the early, middle and late stages of tobacco planting, the connection frame 3, the telescopic rod 5 and the base 1 are installed or disassembled according to the height changes of tobacco growth. When sampling is performed after the telescopic rod 5 is installed, the staff holds the telescopic rod 5 with one hand and pulls the pull rope 513 downward with the other hand to execute the control component 4, and then slides the movable seat 215 to the right, and then drives the swing arm 211 to swing downward, and then drives the movable rod 113 and the sampling head 114 to move downward, so as to perform convenient and fast sampling operations on the leaves.

[0029] Combined with Figure 2 and attached Figure 3 As shown, the control component 4 includes a gear 411 rotatably arranged on the connecting frame 3, a through groove 412 is provided on the base 1 above the gear 411 and corresponding to the moving seat 215, a tooth plate 413 meshing with the gear 411 is slidably provided in the through groove 412, and an observation window 417 is provided on the base 1 at the meshing position of the tooth plate 413 and the gear 411, through which the meshing degree of the gear 411 and the tooth plate 413 can be observed and judged when the connecting frame 3 is installed, a guide rod 414 is provided on the tooth plate 413, and the other end of the guide rod 414 is fixedly connected to the moving seat 215, a guide seat 415 for the guide rod 414 to slide is fixedly provided in the mounting groove 214, and a return spring 416 is wound around the guide rod 414, and a transmission component 8 connected with the pull rope 513 is provided in the connecting frame 3, and the rotation of the gear 411 is controlled by the transmission component 8.

[0030] The working principle of the control component 4 is to pull the pull rope 513 downward, and under the action of the transmission component 8, the gear 411 is driven to rotate, and then the tooth plate 413 is driven to move to the right, and then the guide rod 414 is driven to slide to the right, and then the moving seat 215 is driven to slide to the right.

[0031] Combined with Figure 2 and attached Figure 4 As shown, the transmission assembly 8 includes a pulley 1 811 coaxial with the gear 1 411, a pulley 2 812 is rotatably provided on the connection frame 3 below the pulley 1 811, and a transmission belt 813 is wound between the pulley 1 811 and the pulley 2 812, a lifting seat 1 814 is provided above one side of the transmission belt 813 and is slidably matched with the inner wall of the connection frame 3, and a lifting seat 2 815 is provided below the other side and is slidably matched with the inner wall of the connection frame 3, and the bottom surface of the lifting seat 2 815 and the inner wall of the connection frame 3 are connected. A return spring 816 is fixedly provided in the middle, one end of the pull rope 513 is fixedly connected to the lifting seat 814, and the other end extends to the bottom of the telescopic rod 5 and is connected to the pull ring 514, and the pull ring 514 is connected to the bottom end of the telescopic rod 5 through a magnetic block, and a guide wheel 817 and a guide wheel 818 are rotatably provided on the bottom wall of the connecting frame 3 from left to right, and the pull rope 513 is wound around the guide wheel 817 and the guide wheel 818, so that the radial position of the pull rope 513 can be changed.

[0032] The working principle of the transmission assembly 8 is to pull the pull rope 513 downward to drive the lifting seat 814 to move downward, and at the same time drive the transmission belt 813 to move downward, and then drive the pulley 811 to rotate, and at the same time drive the coaxial gear 411 to rotate, and release the external force on the pull rope 513. Under the action of the reset spring 816, the lifting seat 815 and the lifting seat 814 are quickly reset to facilitate reuse.

[0033] Combined with Figure 4 , Attachment Figure 5 , Attachment Figure 6 , Attachment Figure 7 and attached Fig.10As shown, the telescopic rod 5 includes a cylinder 511 and a moving cylinder 512 that is slidably matched in the cylinder 511. The fixed connection between the moving cylinder 512 and the cylinder 511 is carried out by the cooperation of the existing spring pin and the pin hole (not shown in the figure). The adjustment assembly 7 includes a U-shaped frame 711 fixedly arranged on the moving cylinder 512, a guide wheel 712 is rotatably arranged in the U-shaped frame 711, and a U-shaped frame 713 is fixedly arranged on the bottom surface of the moving cylinder 512 and a U-shaped frame 713 is arranged on the U-shaped frame 713. 13, a gear 2 714 is rotatably provided inside the cylinder 511, a tooth plate 2 715 meshing with the gear 2 714 is fixedly provided on the inner wall of the cylinder 511, an avoidance groove 719 for the tooth plate 2 715 to extend into is provided on the moving cylinder 512 along its height direction, a tooth plate 3 716 meshing with the other side of the gear 2 714 is slidably provided inside the moving cylinder 512, a groove 720 for the tooth plate 3 716 to extend into is provided on the bottom wall of the moving cylinder 512, and the tooth plate 3 716 is slidably connected to the inner wall of the groove 720; A U-shaped frame three 717 is fixedly provided on the outer end surface of the tooth plate three 716, and a movable pulley 718 is rotatably provided in the U-shaped frame three 717. A positioning groove 721 is opened on the cylinder 511 in the sliding direction of the movable pulley 718, and a positioning bolt 722 that can penetrate into the positioning groove 721 is fixedly provided on the U-shaped frame three 717. A nut 723 matching the positioning bolt 722 is threadedly sleeved on the positioning bolt 722. Through the cooperation of the nut 723 and the positioning bolt 722, the adjusted U-shaped frame three 717 can be positioned, and the movable pulley 718 can be positioned at the same time, thereby avoiding the shaking of the movable pulley 718 during the pulling process of the pull rope 513, and the pull rope 513 is sequentially wound around the movable pulley 718 and the guide wheel one 712.

[0034] The working principle of adjustment assembly 7 is that when adjusting the length of telescopic rod 5, the staff holds the moving cylinder 512 with one hand, then releases the fixation between the moving cylinder 512 and the cylinder body 511, and then moves the cylinder body 511 along the axial direction of the moving cylinder 512. At this time, the tooth plate 715 will drive the gear 2 714 to rotate, and the rotation of the tooth plate 715 will drive the tooth plate 3 716 on the other side to move downward, and at the same time drive the movable pulley 718 to move downward. After the adjustment is completed, the nut 723 is tightened so that the end of the nut 723 is tightly against the outer wall of the cylinder body 511, ensuring the stability of the positioning of the movable pulley 718 after adjustment, thereby performing corresponding tensioning operation on the looseness of the pull rope 513 caused during the movement of the cylinder body 511. In this way, it is ensured that the pull rope 513 is always in a tensioned state during the length adjustment of the telescopic rod 5 as needed, thereby improving the convenience of operating the pull rope 513 during use.

[0035] Combined with Figure 2 , Attachment Figure 8 and attached Fig. 9As shown, a positioning assembly 6 is provided between the connection frame 3 and the connection slot 116 to enable the two to be quickly installed or disassembled. The positioning assembly 6 includes a connection seat 1 611 and a connection seat 2 612 which are slidably arranged at the front and rear ends and the left and right ends of the connection slot 116. Both ends of the two connection seats 1 611 are hinged with a swing rod 2 613. The other ends of the four swing rods 2 613 are hinged to the corresponding connection seats 2 612 and together form a prismatic structure that can pass through the connection frame 3. The two connection seats 1 611 are hinged to each other. A positioning pin 614 is fixedly provided on each end surface, a pin hole 614 is provided on the connection frame 3 for the positioning pin 614 to penetrate, and an adjusting member for controlling any one of the connection seats 611 to slide forward and backward is provided on the base 1, and the adjusting member is an adjusting screw 616 corresponding to any one of the connection seats 611 and threadedly connected to the base 1, and the end of the adjusting screw 616 extending into the connection groove 116 is rotatably connected to the connection seat 611, and a locking nut 617 matching it is also threadedly sleeved on the adjusting screw 616; The upper and lower ends of the left and right ends of the connection frame 3 are both provided with fixing seats 615 at positions corresponding to the second connection seat 612 . A linkage component 9 is provided between the second connection seat 612 and the connection frame 3 , and the fixing seat 615 is positioned by the linkage component 9 .

[0036] The working principle of the positioning component 6 is to insert the connecting frame 3 from the bottom of the base 1 into the connecting groove 116 and through the prismatic structure, so that the gear 1 411 and the tooth plate 1 413 are meshed, and then the adjusting screw 616 is rotated. Under the action of the thread force, the connecting seat 1 611 is driven to move inward, and under the action of the prismatic structure composed of the four hinged rocker rods 2 613, the two connecting seats 1 611 at the front and rear ends are relatively moved, and the two connecting seats 2 612 at the left and right ends are moved back to back. At this time, the relative movement of the two connecting seats 1 611 makes the positioning pins 1 614 and the pin holes at both ends cooperate to position the front and rear end surfaces of the connecting frame 3. When the two connecting seats 2 612 move back to back, the linkage component 9 is used to position the four fixing seats 615, and the left and right ends of the connecting frame 3 are positioned at the same time. This not only allows the connecting frame 3 to be conveniently and quickly installed or disassembled, but also improves the stability of the connecting frame 3 after connection.

[0037] Combined with Fig. 9As shown, the linkage assembly 9 includes a wedge-shaped seat 911 fixedly arranged at the upper and lower ends of two connecting seats 612, a sliding rod 912 with a rebound function is slidably inserted into the base 1 corresponding to each wedge-shaped seat 911, and each sliding rod 912 is provided with a matching seat 913 matched with the wedge-shaped seat 911, and a positioning pin 914 that slides left and right and has a rebound function is inserted into the base 1 corresponding to each fixed seat 615, and the positioning pin 914 and the sliding rod 912 are vertically arranged and a cavity 915 is opened at the vertical position thereof, a wedge-shaped seat 916 is provided on the sliding rod 912 in the cavity 915, a matching seat 917 matched with the wedge-shaped seat 916 is provided on the positioning pin 914, and a pin hole 2 for the positioning pin 914 to penetrate is opened on the fixed seat 615.

[0038] The working principle of the linkage assembly 9 is that when the two connecting seats 612 move away from each other, under the action of the wedge-shaped seat 911 and the matching seat 913, the two sliding rods 912 on the same side are driven to move away from each other, and then under the action of the wedge-shaped seat 916 and the matching seat 917, the four positioning pins 914 are driven to extend outward synchronously and cooperate with the pin hole 2, thereby positioning the fixed seat 615.

[0039] When the present invention is implemented, firstly, the device is adaptively selected according to the use requirements in the early, middle and late stages of tobacco planting. When tobacco is planted in the early stage, the base 1 is directly held to sample the tobacco leaves. When tobacco is planted in the middle or late stage, the connecting frame 3 and the telescopic rod 5 are installed on the base 1, and then the positioning component 6 is used to effectively position them. Then, the staff holds the telescopic rod 5 with one hand and moves the area between the upper mounting seat 111 and the lower mounting seat 112 to the position of the leaves to be collected. The staff pulls the pull ring 514 with the other hand to move it downward, and at the same time drives the pull rope 513 to move downward. When the pull rope 513 moves downward, the control component 4 is driven to act through the transmission component 8, and then the adjustment component 2 is driven to act, so that the moving rod 113 moves downward. Under the action of the sampling head 114, the tobacco leaves are effectively collected, thereby improving the practicability of the device.

[0040] The present invention and its embodiments are described above, which is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it and do not deviate from the purpose of the invention, they can creatively design a structure and embodiment similar to the technical solution, which should fall within the protection scope of the present invention.

Claims

1. A leaf sampling and collecting device for tobacco virus disease detection, comprising a base (1), wherein an upper mounting seat (111) and a lower mounting seat (112) are sequentially arranged on the base (1) from top to bottom, wherein a moving rod (113) with a rebound function is slidably arranged on the upper mounting seat (111) and a sampling head (114) is provided on the bottom surface of the moving rod (113), and a sampling tube (115) for collecting leaves is detachably arranged on the lower mounting seat (112), wherein the device is characterized in that: The base (1) is provided with an adjustment component (2) for controlling the moving rod (113) to slide up and down, the adjustment component (2) comprising a swing arm (211) hinged on the top surface of the base (1), the swing arm (211) is provided with a first mounting groove (212) and a swing rod (213) is hinged in the first mounting groove (212), the upper mounting seat (111) is provided with a second mounting groove (214) and a moving seat (215) is slidably provided in the second mounting groove (214), and the other end of the swing rod (213) is hinged on the moving seat (215); A connecting groove (116) is provided on the base (1), a connecting frame (3) that can be quickly installed or removed is provided in the connecting groove (116), and a control component (4) for controlling the sliding of the movable seat (215) is provided in the connecting frame (3); A telescopic rod (5) is provided on the bottom surface of the connection frame (3), a pull rope (513) for executing the control component (4) is provided inside the telescopic rod (5), and an adjustment component (7) for keeping the pull rope (513) in a tensioned state is also provided inside the telescopic rod (5).

2. A leaf sampling and collecting device for tobacco virus disease detection according to claim 1, characterized in that: The control component (4) comprises a gear one (411) rotatably arranged on a connecting frame (3); a through slot (412) is provided on a base (1) above the gear one (411) and corresponding to the movable seat (215); a tooth plate one (413) is slidably provided in the through slot (412) and meshes with the gear one (411); a guide rod (414) is provided on the tooth plate one (413); the other end of the guide rod (414) is fixedly connected to the movable seat (215); a transmission component (8) connected to a pull rope (513) is provided in the connecting frame (3); and the rotation of the gear one (411) is controlled by the transmission component (8).

3. A leaf sampling and collecting device for tobacco virus disease detection according to claim 2, characterized in that: The transmission assembly (8) comprises a pulley 1 (811) coaxial with the gear 1 (411); a pulley 2 (812) is rotatably provided on the connection frame (3) below the pulley 1 (811); a transmission belt (813) is wound between the pulley 1 (811) and the pulley 2 (812); a lifting seat 1 (814) slidably engaged with the inner wall of the connection frame (3) is provided above one side of the transmission belt (813); a lifting seat 2 (815) slidably engaged with the inner wall of the connection frame (3) is provided below the other side; one end of the pull rope (513) is connected to the lifting seat 1 (814); the other end extends to below the bottom surface of the telescopic rod (5) and is connected to a pull ring (514).

4. A leaf sampling and collecting device for tobacco virus disease detection according to claim 3, characterized in that: The telescopic rod (5) comprises a cylinder (511) and a moving cylinder (512) slidably fitted in the cylinder (511); the adjustment assembly (7) comprises a U-shaped frame (711) fixedly arranged on the moving cylinder (512); a guide wheel (712) is rotatably provided in the U-shaped frame (711); a U-shaped frame (713) is fixedly provided on the bottom surface of the moving cylinder (512); and a gear (714) is rotatably provided in the U-shaped frame (713); the cylinder ( A toothed plate 2 (715) meshing with the gear 2 (714) is fixedly provided on the inner wall of the guide cylinder (511), and a toothed plate 3 (716) meshing with the other side of the gear 2 (714) is slidably provided in the movable cylinder (512), a U-shaped frame 3 (717) is fixedly provided on the outer end surface of the toothed plate 3 (716), and a movable pulley (718) is rotatably provided in the U-shaped frame 3 (717), and the pull rope (513) is sequentially wound around the movable pulley (718) and the guide wheel 1 (712).

5. A leaf sampling and collecting device for tobacco virus disease detection according to any one of claims 1 to 4, characterized in that: A positioning assembly (6) is provided between the connection frame (3) and the connection groove (116) for enabling the two to be quickly installed or disassembled. The positioning assembly (6) comprises a connection seat one (611) and a connection seat two (612) which are slidably arranged at the front and rear ends and the left and right ends of the connection groove (116). Both ends of the two connection seats one (611) are hinged with a swing rod two (613). The other ends of the four swing rods two (613) are hinged on the corresponding connection seat two (612) and together form a prismatic structure that can pass through the connection frame (3). Positioning pins one (614) are fixedly provided on the opposite end surfaces of the two connection seats one (611). A pin hole one for the positioning pin one (614) to penetrate is provided on the connection frame (3). An adjustment member for controlling any connection seat one (611) to slide forward and backward is provided on the base (1); The upper and lower ends of the left and right ends of the connection frame (3) are both provided with fixed seats (615) at positions corresponding to the second connection seat (612), and a linkage component (9) is provided between the second connection seat (612) and the connection frame (3), and the fixed seat (615) is positioned by the linkage component (9).

6. A leaf sampling and collecting device for tobacco virus disease detection according to claim 5, characterized in that: The linkage assembly (9) comprises a wedge-shaped seat (911) fixedly arranged at the upper and lower ends of two connecting seats (612); a sliding rod (912) with a rebound function is slidably inserted into the base (1) corresponding to each wedge-shaped seat (911); each sliding rod (912) is provided with a matching seat (913) adapted to the wedge-shaped seat (911); and a left-right sliding seat (913) is inserted into the base (1) corresponding to each fixed seat (615). A second positioning pin (914) having a spring-back function is provided, and the second positioning pin (914) and the sliding rod (912) are arranged vertically and a cavity (915) is provided at the vertical position thereof, a second wedge-shaped seat (916) is provided on the sliding rod (912) in the cavity (915), a second matching seat (917) matching with the second wedge-shaped seat (916) is provided on the second positioning pin (914), and a second pin hole for the second positioning pin (914) to penetrate is provided on the fixed seat (615).

7. A leaf sampling and collecting device for tobacco virus disease detection according to claim 5, characterized in that: The adjusting member is an adjusting screw (616) corresponding to any one of the connecting seats (611) and threadedly connected to the base (1); the end of the adjusting screw (616) extending into the connecting groove (116) is rotatably connected to the connecting seat (611).

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