Corn disease and insect pest detecting and sampling device

Abstract

The utility model discloses a corn disease and insect pest detection sampling device, and particularly relates to the technical field of disease and insect pest sampling detection, which comprises a fixed disc, a limiting groove is arranged in the fixed disc, a rotating disc is slidably connected in the limiting groove, a handle is fixedly arranged on one side of the fixed disc, and a guide mechanism is arranged on one side of the handle. The guide mechanism comprises two fixing blocks fixedly arranged at the top of the handle, first springs are fixedly arranged at the tops of the two fixing blocks, pressing strips are fixedly arranged at one ends of the first springs, guide grooves are formed in the surfaces of the pressing strips, guide strips are slidably connected into the guide grooves, and the cross section of each guide strip is arranged to be in an L shape. According to the utility model, accurate positioning is realized, different sampling positions are conveniently and accurately selected, the sampling pertinence is improved, the accurate and stable movement track of the pressing strip is ensured, the accurate positioning and clamping connection with the rotating disc and the accurate sampling operation of the punching tool bit are ensured, and the sampling accuracy is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of disease and insect pest sampling detection, more particularly, the utility model relates to corn disease and insect pest detection sampling device. BACKGROUND

[0002] Corn is one of the important food crops in China, and is often threatened by many diseases and insect pests. Common diseases of corn include corn large spot, corn stripe, corn rust and corn aphid disease. These diseases can cause corn leaves to develop spots, die and block light, which seriously affects the normal growth and yield of corn. Therefore, sampling and detection of corn diseases and insect pests and treatment are particularly important. The nutritional composition of corn leaves can reflect the growth condition of corn. A corn leaf sampler is an important design content for sampling corn leaves. Corn leaf samples are of great significance for studying the growth process of corn.

[0003] In the prior art, sampling is performed by punching. Each time corn leaves are sampled, the sampled corn pieces are placed in a container. When the next sampling is performed, a new container must be used to hold the corn pieces. This sampling device requires manual removal of the leaf sample before and after sampling and manual replacement of the sample container, which increases the work process and is low in efficiency.

[0004] According to the search, a corn disease and insect pest sampling and detection device is disclosed in Chinese Patent No. CN222013552U. In use, the corn leaves to be sampled are placed on the bottom disc, the punch is directly below the handle, the thumb is pressed against the pressure rod, the punch is pressed downward, the corn leaves are cut into the collection tube directly below the punch, the sampling work is completed, the operation is simple and convenient, and the pressure rod is automatically reset under the action of the spring when the corn leaves are sampled by pressing the pressure rod. At this time, the limit block matched with the first sliding groove moves in the first sliding groove, the cam rotates, the next collection tube automatically rotates to the position directly below the punch, sampling can continue at this time, and it is not necessary to manually replace the collection tube, making sampling more convenient and simple.

[0005] However, in actual use, when the thumb is pressed against the pressure rod, the corn leaves placed on the bottom disc may move, resulting in that the corn leaves cannot be accurately cut into the collection tube directly below the punch. As a result, the collected leaf parts may not be the expected parts, affecting the accuracy of subsequent detection of diseases and insect pests and failing to accurately reflect the real disease and insect pest situation of the leaves. UTILITY MODEL CONTENTS

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides a corn disease and insect pest detection sampling device to solve the problems raised in the background art.

[0007] To achieve the above object, the utility model provides the following technical scheme:

[0008] The corn disease and pest detection sampling device, including the fixed disc, the inside of the fixed disc is equipped with the limit groove, the inside of the limit groove is connected with the rotary disc of sliding, one side of the fixed disc is fixedly arranged with the handle, one side of the handle is provided with the guide mechanism,

[0009] The guide mechanism includes two fixed blocks fixedly arranged at the top of the handle, a first spring is fixedly arranged at the top of each of the two fixed blocks, one end of the first spring is fixedly arranged with a pressing strip, a guide groove is formed in the surface of the pressing strip, a guide strip is slidably connected in the guide groove, the cross section of the guide strip is L-shaped, a guide hole is formed in the surface of the pressing strip, the guide hole is formed on one side of the guide groove, a guide rod is slidably connected in the guide hole, a limit block is fixedly arranged at one end of the guide rod, a connecting rod is fixedly arranged at the bottom of the pressing strip, a limit column is fixedly arranged at the bottom of the connecting rod, a plurality of clamping strips are fixedly arranged outside the limit column, a fixed cylinder is fixedly arranged at the top of the rotary disc, a plurality of clamping grooves are formed in the inside of the fixed cylinder, and the clamping strips are clamped with the clamping grooves.

[0010] By adopting the above technical scheme, accurate positioning is realized, different sampling positions can be accurately selected, the sampling pertinence is improved, the movement track of the pressing strip is accurate and stable, the positioning clamping of the rotary disc is accurate, the sampling operation of the punch bit is accurate, and the sampling precision is improved.

[0011] As a further description of the above technical scheme, the bottom of the pressing strip is provided with a fixing mechanism, the fixing mechanism includes a connecting column fixedly arranged at the bottom of the pressing strip, a cutter sleeve is fixedly arranged at the bottom of the connecting column, a punch bit is threadedly connected at the bottom of the cutter sleeve, a stabilizing block is fixedly arranged at the two sides of the pressing strip, a sleeve ring is fixedly arranged at the bottom of the stabilizing block, a movable rod is slidably connected in the inside of the sleeve ring, and a second spring is sleeved on the outside of the movable rod.

[0012] By adopting the above technical scheme, stable support and pressure can be provided for the corn plant during sampling, the sampling operation is stable, the sample acquisition is accurate, the punch bit connected by threads can be easily replaced with different specifications, and the sample can be effectively cut from the corn tissue.

[0013] As a further description of the above technical scheme, one end of the second spring is connected with the stabilizing block, the other end of the second spring is fixedly arranged with a pressing plate, a rubber layer is fixedly arranged at the bottom of the pressing plate, the top of the pressing plate is fixedly connected with one end of the movable rod, a plurality of threaded grooves are formed in the surface of the rotary disc, a sample tube is threadedly connected in the inside of each of the plurality of threaded grooves, and a collecting opening is formed in the surface of the fixed disc.

[0014] By adopting the technical scheme, the corn plant can be moderately pressed to keep stable and avoid excessive damage during sampling, so that the sampling is ensured to be carried out smoothly, the samples are conveniently and orderly collected, the samples correspond to different sampling positions, and the corn diseases and insect pests are accurately detected subsequently.

[0015] The technical effects and advantages of the utility model are as follows:

[0016] 1. By setting the guide mechanism, compared with the prior art, the pressing strip realizes accurate and stable linear motion in the vertical direction through the guide structure composed of the guide strip and the guide rod, so that the clamping operation related to the positioning of the rotating disc can be accurately performed, the guide strip and the guide rod strictly limit the movement track of the pressing strip, so that the pressing strip does not deviate or shake when moving downward for sampling operation, not only the accuracy of the cutting knife head cutting into the corn leaf tissue is ensured, but also the whole sampling operation is more stable and smooth, and the unnecessary damage to the corn plant and the risk of sampling failure caused by unstable operation are reduced.

[0017] 2. By setting the fixing mechanism, compared with the prior art, the stable blocks on both sides of the pressing strip and the movable rod, the second spring, the pressing plate and the rubber layer related thereto cooperate to maintain the relative stability of the corn plant during sampling, by providing appropriate pressure and support, it is ensured that the cutting knife head can smoothly cut into the corn leaf tissue to obtain samples, and the corn plant is prevented from shaking or shifting during sampling due to external force, so that the stability and success rate of the sampling operation are further improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic diagram of the utility model.

[0019] Figure 2 It is a whole working state structure schematic diagram of the utility model.

[0020] Figure 3 It is a whole working state structure schematic diagram of the utility model. Figure 1 It is an enlarged structure schematic diagram of A in the utility model.

[0021] Figure 4 It is a guide mechanism cross section structure schematic diagram of the utility model.

[0022] Figure 5 It is a fixing mechanism cross section structure schematic diagram of the utility model.

[0023] The reference signs are: 1, fixed disc; 2, limiting groove; 3, rotating disc; 4, handle; 5, fixed block; 6, first spring; 7, pressing strip; 8, guide strip; 9, guide rod; 10, limiting block; 11, connecting rod; 12, limiting column; 13, clamping strip; 14, fixed cylinder; 15, clamping groove; 16, connecting column; 17, cutter sleeve; 18, punching cutter head; 19, stabilizing block; 20, sleeve ring; 21, movable rod; 22, second spring; 23, pressing plate; 24, rubber layer; 25, threaded groove; 26, sample tube; 27, collecting port. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] The embodiments of the present application disclose a corn disease and pest detection sampling device as shown in Figures 1-5 The corn disease and pest detection sampling device comprises a fixed disc 1, a limiting groove 2 is formed in the inside of the fixed disc 1, a rotating disc 3 is slidably connected in the inside of the limiting groove 2, a handle 4 is fixedly arranged on one side of the fixed disc 1, and a guide mechanism is arranged on one side of the handle 4.

[0026] The guide mechanism comprises two fixed blocks 5 fixedly arranged at the top of the handle 4, the top of each of the two fixed blocks 5 is fixedly provided with a first spring 6, one end of the first spring 6 is fixedly provided with a pressing strip 7, the surface of the pressing strip 7 is provided with a guide groove, the guide groove is slidably connected with a guide strip 8, the cross section of the guide strip 8 is arranged in an L shape, the surface of the pressing strip 7 is provided with a guide hole, the guide hole is arranged at one side of the guide groove, the guide hole is slidably connected with a guide rod 9, one end of the guide rod 9 is fixedly provided with a limiting block 10, the bottom of the pressing strip 7 is fixedly provided with a connecting rod 11, the bottom of the connecting rod 11 is fixedly provided with a limiting column 12, the outer part of the limiting column 12 is fixedly provided with a plurality of clamping strips 13, the top of the rotating disc 3 is fixedly provided with a fixed cylinder 14, a plurality of clamping grooves 15 are arranged in the inner part of the fixed cylinder 14, the clamping strips 13 are clamped with the clamping grooves 15, the pressing strip 7 drives the guide strip 8 to slide downward along the guide groove, the guide structure ensures that the movement track of the pressing strip 7 in the vertical direction is a straight line, so that the operation of the pressing strip 7 is more accurate and stable, and the offset or shaking condition is avoided, so that the clamping operation related to the positioning of the rotating disc 3 can be accurately performed, the guide rod 9 moves downward in the guide hole arranged on the surface of the pressing strip 7, and one end of the guide rod 9 is fixedly provided with the limiting block 10, the guide rod 9 further limits the movement range of the pressing strip 7, prevents the pressing strip 7 from deviating from the normal movement track during the upward and downward movement, the limiting block 10 plays a blocking role, avoids the guide rod 9 from completely sliding out of the guide hole, and ensures the integrity and reliability of the entire guide mechanism, during the downward movement of the pressing strip 7, the punch head 18 moves downward together with the cutter sleeve 17, the sharp shape and downward impact force of the punch head 18 cut into the tissue of the corn leaf, so that the sample is obtained, when the punch head 18 obtains the sample, the sample enters into the corresponding sample tube 26 through the collecting opening 27 arranged on the surface of the fixed disc 1, and the collection of the sample is realized.

[0027] Referring to Figures 2-3The bottom of the pressing strip 7 is provided with a fixing mechanism, the fixing mechanism comprises a connecting column 16 fixedly arranged at the bottom of the pressing strip 7, the bottom of the connecting column 16 is fixedly provided with a cutter sleeve 17, the bottom of the cutter sleeve 17 is threadedly connected with a cutter head 18, the two sides of the pressing strip 7 are fixedly provided with stabilizing blocks 19, the bottom of each stabilizing block 19 is fixedly provided with a sleeve ring 20, the inside of the sleeve ring 20 is slidably connected with a movable rod 21, the outside of the movable rod 21 is sleeved with a second spring 22, the corn leaf is placed on the fixing disc 1, and the part needing to be collected is moved to the collecting opening 27, then the handle 4 is held, and the pressing strip 7 is pressed downwards, when the pressing strip 7 is pressed downwards, the first spring 6 is further extruded and deformed, the limiting column 12 drives the clamping strip 13 to move downwards, the clamping strip 13 is clamped with the corresponding clamping groove 15 in the fixing cylinder 14, so that the rotating disc 3 is locked at the current position, the rotating disc 3 cannot be randomly rotated during sampling, the accuracy and stability of sampling operation are ensured, and the stabilizing block 19 also moves downwards, at this moment, the movable rod 21 relatively slides upwards in the sleeve ring 20, the second spring 22 is compressed, and the elastic force generated by the second spring 22 acts on the pressing plate 23, the rubber layer 24 at the bottom of the pressing plate 23 is in contact with the surface of the corn leaf and applies a certain pressure, so that the corn plant can be kept relatively stable during sampling, and the corn leaf is effectively prevented from deviating.

[0028] Referring to Figures 4-5 The end of the second spring 22 is connected with the stabilizing block 19, the other end of the second spring 22 is fixedly provided with the pressing plate 23, the bottom of the pressing plate 23 is fixedly provided with the rubber layer 24, the top of the pressing plate 23 is fixedly connected with one end of the movable rod 21, the surface of the rotating disc 3 is provided with a plurality of threaded grooves 25, the inside of each threaded groove 25 is threadedly connected with a sample tube 26, the surface of the fixing disc 1 is provided with a collecting opening 27, when continuous collection is needed, the pressing strip 7 is loosened first, then the first spring 6 is reset, the pressing strip 7 is driven to move upwards, the limiting column 12 drives the clamping strip 13 to move upwards, the clamping strip 13 is withdrawn from the corresponding clamping groove 15 in the fixing cylinder 14, then, since the rotating disc 3 is located in the limiting groove 2 arranged in the fixing disc 1 and is in a sliding connection relationship with the fixing disc 1, the rotating disc 3 can rotate relative to the fixing disc 1 in the limiting groove 2, the rotating disc 3 is rotated, and after reaching a suitable position, the above steps are reversed, and continuous sampling can be carried out, different sample tubes 26 can be used to collect samples from different parts of the corn plant, so that subsequent targeted pest detection and analysis can be carried out.

[0029] The working principle of the utility model:

[0030] The utility model discloses a corn disease and insect pest detection sampling device, the device is used in the sampling process, corn leaves are placed on fixed disc 1, and the part needing to be collected is moved to the collecting port 27, then holds handle 4, and then presses down and presses strip 7, when pressing strip 7 presses down, further extrudes first spring 6 deformation, and limit post 12 drives clamping strip 13 to move down, and clamping strip 13 will be connected with the corresponding clamping groove 15 in fixed cylinder 14, so that the rotating disc 3 is locked in the current position, ensure that the rotating disc 3 does not rotate randomly in the sampling process, guarantee the accuracy and stability of sampling operation, and the stabilizing block 19 also moves down, at this moment, the movable rod 21 will slide relatively upwards in the sleeve ring 20, and the second spring 22 is compressed, and the elastic force generated by the second spring 22 will act on the pressing plate 23, and the rubber layer 24 at the bottom of the pressing plate 23 will contact the surface of corn leaves and apply a certain pressure, so that the corn plant can keep relatively stable during the sampling process, and corn leaves are effectively prevented from deviating;

[0031] Meanwhile, pressing strip 7 drives guide strip 8 to slide down along guide groove, and the guide structure ensures that the movement track of pressing strip 7 in the vertical direction is a straight line, so that the operation of pressing strip 7 is more accurate and stable, and deviation or shaking is avoided, so that the clamping operation related to the positioning of rotating disc 3 can be accurately carried out, guide rod 9 moves down in the guide hole formed in the surface of pressing strip 7, and one end is fixedly provided with a limiting block 10, and the function of guide rod 9 is to further limit the movement range of pressing strip 7, so as to prevent it from deviating from the normal movement track during the up-down movement, and the limiting block 10 plays a blocking role, avoiding guide rod 9 from sliding out of the guide hole completely, and ensuring the integrity and reliability of the whole guide mechanism;

[0032] During the downward movement of pressing strip 7, punch cutter head 18 moves down together with cutter sleeve 17, and by means of the sharp shape and downward impact force of punch cutter head 18, it is cut into the tissue of corn leaves, so as to obtain samples, and when punch cutter head 18 obtains samples, the samples will enter into the corresponding sample tube 26 through the collecting port 27 formed in the surface of fixed disc 1, so as to realize the collection of samples;

[0033] When continuous collection is needed, first, pressing strip 7 is loosened, then first spring 6 is reset, and then pressing strip 7 moves upwards, and limit post 12 drives clamping strip 13 to move upwards, and clamping strip 13 will exit from the corresponding clamping groove 15 in fixed cylinder 14, then, because rotating disc 3 is located in the limiting groove 2 formed in fixed disc 1, the two are in a sliding connection relationship, and this structure enables rotating disc 3 to rotate relative to fixed disc 1 in the limiting groove 2, and then rotating disc 3 is rotated, and after reaching the appropriate position, the above steps are reversed, so that continuous sampling can be carried out, and different sample tubes 26 can be used to collect samples from different parts of corn plants, so as to carry out subsequent targeted disease and insect pest detection analysis.

[0034] The above are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, and thus: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A corn pest and disease detection and sampling device, comprising a fixed plate (1), characterized in that: The fixed disk (1) has a limiting groove (2) inside, and a rotating disk (3) is slidably connected inside the limiting groove (2). A handle (4) is fixedly provided on one side of the fixed disk (1), and a guide mechanism is provided on one side of the handle (4). The guiding mechanism includes two fixed blocks (5) fixedly mounted on the top of the handle (4). A first spring (6) is fixedly mounted on the top of each of the two fixed blocks (5). A pressing strip (7) is fixedly mounted on one end of the first spring (6). A guide groove is opened on the surface of the pressing strip (7). A guide bar (8) is slidably connected inside the guide groove. The cross-section of the guide bar (8) is L-shaped. A guide hole is opened on the surface of the pressing strip (7). The guide hole is located on one side of the guide groove. A guide rod (9) is slidably connected inside the guide hole. A limit block (10) is fixedly mounted on one end of the guide rod (9).

2. The corn pest and disease detection and sampling device according to claim 1, characterized in that: A connecting rod (11) is fixedly provided at the bottom of the pressing strip (7), a limiting post (12) is fixedly provided at the bottom of the connecting rod (11), a plurality of locking strips (13) are fixedly provided on the outside of the limiting post (12), a fixing cylinder (14) is fixedly provided at the top of the rotating disk (3), a plurality of locking grooves (15) are provided inside the fixing cylinder (14), and the locking strips (13) are engaged with the locking grooves (15).

3. The corn pest and disease detection and sampling device according to claim 1, characterized in that: The bottom of the pressing strip (7) is provided with a fixing mechanism, which includes a connecting column (16) fixedly installed at the bottom of the pressing strip (7), a blade sleeve (17) fixedly installed at the bottom of the connecting column (16), a punch head (18) threadedly connected to the bottom of the blade sleeve (17), and stabilizing blocks (19) fixedly installed on both sides of the pressing strip (7).

4. The corn pest and disease detection and sampling device according to claim 3, characterized in that: The bottom of the stabilizing block (19) is fixedly provided with a collar (20), and a movable rod (21) is slidably connected inside the collar (20). A second spring (22) is sleeved on the outside of the movable rod (21).

5. The corn pest and disease detection and sampling device according to claim 4, characterized in that: One end of the second spring (22) is connected to the stabilizing block (19), and the other end of the second spring (22) is fixedly provided with a pressure plate (23). The bottom of the pressure plate (23) is fixedly provided with a rubber layer (24), and the top of the pressure plate (23) is fixedly connected to one end of the movable rod (21).

6. The corn pest and disease detection and sampling device according to claim 1, characterized in that: The rotating disk (3) has multiple threaded grooves (25) on its surface, and each of the multiple threaded grooves (25) is threaded with a sample tube (26). The fixed disk (1) has a collection port (27) on its surface.

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