A sampling device for detection of pine wilt disease

Abstract

The utility model provides a kind of pine wood nematode disease detection's sampling device, belong to forestry epidemic detection technical field;Including: handheld telescopic rod and sampling rack, sampling rack is set at the top of handheld telescopic rod, further include: two groups of hug tightly fixed component, two groups of hug tightly fixed component are respectively movably arranged in the rear wall of sampling rack, and two groups of hug tightly fixed component are symmetrically set in the rear wall of rear wall;Sample collection component, sample collection component is fixedly arranged in the inner wall of sampling rack;Sampling component, sampling component movably arranged in the top of sampling rack;Work feed component, work feed component is set in the top of sampling rack, and the driving end of work feed component is connected with sampling component;The device solves the stability problem of device by hydraulic hug tightly mechanism, air path negative pressure sealing system solves sample pollution problem, electro-hydraulic servo control solves drilling depth precision problem.

Description

Technical Field

[0001] This utility model belongs to the field of forestry disease detection technology, specifically relating to a sampling device for detecting pine wilt disease. Background Technology

[0002] Pine wilt disease is a devastating disease of pine trees caused by a tiny parasite called the pine wood nematode. It is also known as pine wilt or pine deadness. This nematode is invisible to the naked eye and can only be seen under a microscope. After invading the pine tree, it multiplies rapidly, damaging the tree's vascular tissue, preventing the pine from transporting water and nutrients, and ultimately causing rapid death. To control this disease, regular sampling is necessary to ensure the health of the timber.

[0003] Currently, there are three major bottlenecks in this field: First, traditional sampling relies on manual chisels or hand-held electric drills, which is inefficient and results in poor sample representativeness; second, high-altitude operations lack stability, and existing devices lack an adaptive clamping mechanism, which can easily lead to sampling position deviation; third, the sample collection process is highly open and easily affected by the environment. For example, a rapid sampling device for pine wilt disease detection, with announcement number CN 218411749 U, although convenient for collecting samples from high places, still has poor stability when collecting samples from high places. Utility Model Content

[0004] To address the problems in existing technologies, such as the low efficiency and poor sample representativeness of traditional sampling methods relying on manual chisels or handheld drills, insufficient stability during high-altitude operations, the lack of adaptive clamping mechanisms in existing devices leading to sampling position deviations, and the open nature of the sample collection process making it susceptible to environmental influences, this invention provides a sampling device for pine wilt disease detection. It solves the stability problem through a hydraulic clamping mechanism, addresses sample contamination through a pneumatic negative pressure sealing system, and resolves drilling depth accuracy issues through electro-hydraulic servo control. The specific technical solution is as follows: A sampling device for pine wilt disease detection, comprising: a handheld telescopic rod and a sampling frame, wherein the sampling frame is located at the top of the handheld telescopic rod, and further comprising: Two sets of clamping and fixing components are respectively movably disposed on the rear wall of the sampling frame, and the two sets of clamping and fixing components are symmetrically disposed on the rear wall. A sample collection assembly, which is fixedly mounted on the inner wall of the sampling frame; A sampling assembly, which is movably mounted on top of the sampling rack; A feed assembly is disposed on top of the sampling frame, and the drive end of the feed assembly is connected to the sampling assembly; The two sets of clamping and fixing components include: A clamping arc plate is movably mounted on the rear wall of the sampling frame via a rotating shaft; A hydraulic motor is installed on the rear wall of the sampling frame, and the driving end of the hydraulic motor is connected to the clamping arc plate through a rotating shaft. The driving end of the hydraulic motor can control the opening and closing angle of the clamping arc plate. A clamping fixing seat is movably mounted at the tail of the clamping arc plate via a rotating shaft.

[0005] Preferably, the sample collection component includes: A sample sealing gasket is disposed on the inner wall surface of the sampling machine frame; A collection trough is disposed on the lower wall surface of the sample sealing gasket; A collection bottle, which is movably mounted on the outside of the handheld telescopic pole via a bracket; A collection hose is provided, which connects the collection bottle and the collection tank.

[0006] Preferably, the sampling component includes: A sampling chute is provided on the upper wall of the sampling machine frame; A sampling motor is movably mounted inside the sampling slide, and the sampling motor can move inside the sampling slide. A sampling drill bit is provided, which is located at the drive end of a sampling motor. The sampling frame has a sampling hole, and the sampling drill bit passes through the sampling hole of the sampling frame.

[0007] Preferably, the feed assembly includes: The working hydraulic device is installed on the upper wall of the sampling frame, and the drive end of the working hydraulic device is connected to the sampling motor.

[0008] Preferably, the inner wall surface of the clamping and fixing seat is provided with a plurality of fixing nails.

[0009] Preferably, the inside of the collection bottle is provided with an isolation net, and the lower wall of the collection bottle is provided with an air pump connection port.

[0010] Preferably, the sample sealing gasket is made of soft rubber.

[0011] Preferably, the lower end of the handheld telescopic rod is provided with a non-slip handle.

[0012] Preferably, the collection hose is an industrial telescopic hose.

[0013] Preferably, the upper wall of the sampling frame is equipped with an image acquisition camera, and the tail of the handheld telescopic rod is equipped with an image display screen.

[0014] The sampling device for detecting pine wilt disease of this utility model has the following advantages compared with the prior art: the sampling device for detecting pine wilt disease solves the problem of device stability through a hydraulic clamping mechanism, solves the problem of sample contamination through a negative pressure sealing system in the air circuit, and solves the problem of drilling depth accuracy through electro-hydraulic servo control. This sampling device solves the problems of traditional sampling devices being prone to shaking and not fitting tightly on the tree trunk surface by using an arc-shaped adaptive structure of the clamping and fixing components and hydraulic closed-loop control.

[0015] This sampling device solves the problems of sample contamination and sawdust loss through the airtight design of the sample collection components and the negative pressure collection system.

[0016] This sampling device solves the problems of inconsistent drilling depth and low efficiency caused by manual drilling by using electromechanical-hydraulic coordinated control of the feed component and the sampling component, thereby improving sampling efficiency and drilling depth control accuracy. Attached Figure Description

[0017] Figure 1 A schematic diagram of the first overall structure of the sampling device for detecting pine wilt disease provided by this utility model; Figure 2 A schematic diagram of the second overall structure of the sampling device for detecting pine wilt disease provided by this utility model; Figure 3 A partial structural diagram of the sampling device for detecting pine wilt disease provided by this utility model; Figure 4 A second partial structural schematic diagram of the sampling device for detecting pine wilt disease provided by this utility model; in, Figures 1 to 4 The sampling device for pine wilt disease detection, as shown in the attached diagram, consists of: 1. Handheld telescopic pole; 2. Sampling frame; 3. Clamping arc plate; 4. Hydraulic motor; 5. Clamping fixing seat; 6. Sample sealing gasket; 7. Collection trough; 8. Collection bottle; 9. Collection hose; 10. Sampling slide; 11. Sampling motor; 12. Sampling drill bit; 13. Working hydraulic actuator; 14. Fixing nail; 15. Air pump connection port; 16. Anti-slip handle. Detailed Implementation

[0018] The following are specific implementation cases and appendices. Figures 1-4This utility model will be further described, but it is not limited to these embodiments. This utility model provides a technical solution: a sampling device for detecting pine wilt disease, comprising: a handheld telescopic rod 1 and a sampling frame 2, the sampling frame 2 being disposed at the top of the handheld telescopic rod 1; further comprising: two sets of clamping and fixing components, the two sets of clamping and fixing components being movably disposed on the rear wall surface of the sampling frame 2, and the two sets of clamping and fixing components being symmetrically disposed on the rear wall surface; a sample collection component, the sample collection component being fixedly disposed on the inner wall surface of the sampling frame 2; a sampling component, the sampling component being movably disposed on the top of the sampling frame 2; and a working component, the working component being disposed on the top of the sampling frame 2, and the working component being... The drive end is connected to the sampling component; the two sets of clamping and fixing components include: clamping arc plate 3, which is movably set on the rear wall of the sampling frame 2 via a rotating shaft; hydraulic motor 4, which is set on the rear wall of the sampling frame 2, and the drive end of the hydraulic motor 4 is connected to the clamping arc plate 3 via a rotating shaft, and the drive end of the hydraulic motor 4 can control the opening and closing angle of the clamping arc plate 3; clamping fixing seat 5, which is movably set at the tail of the clamping arc plate 3 via a rotating shaft, and the inner wall of the clamping fixing seat 5 is provided with several fixing nails 14, the lower end of the handheld telescopic rod 1 is provided with an anti-slip handle 16, the upper wall of the sampling frame 2 is provided with an image acquisition camera, and the tail of the handheld telescopic rod 1 is provided with an image display screen.

[0019] As a preferred embodiment, the sample collection assembly further includes: a sample sealing gasket 6, which is disposed on the inner wall of the sampling frame 2; a collection trough 7, which is disposed on the lower wall of the sample sealing gasket 6; a collection bottle 8, which is movably disposed on the outside of the handheld telescopic rod 1 via a bracket; and a collection hose 9, which is connected between the collection bottle 8 and the collection trough 7. The collection bottle 8 has an internal isolation net and an air pump connection port 15 on its lower wall. The sample sealing gasket 6 is made of soft rubber, and the collection hose 9 is an industrial telescopic hose.

[0020] As a preferred embodiment, the sampling assembly further includes: a sampling slide 10, which is disposed on the upper wall of the sampling frame 2; a sampling motor 11, which is movably disposed inside the sampling slide 10 and can move inside the sampling slide 10; and a sampling drill bit 12, which is disposed at the drive end of the sampling motor 11. The sampling frame 2 is provided with a sampling hole, and the sampling drill bit 12 passes through the sampling hole of the sampling frame 2.

[0021] As a preferred embodiment, the feed assembly further includes a feed hydraulic unit 13, which is disposed on the upper wall of the sampling frame 2, and the drive end of the feed hydraulic unit 13 is connected to the sampling motor 11.

[0022] Working principle: When using this device, the operator first connects an external AC power source to the device to provide energy for the electrical equipment in the device, and simultaneously connects a hydraulic power source to the device to provide energy for the hydraulic drive equipment in the device. The controller matching the above power devices is also set in the device to provide control and working logic for the operation of the above power devices. Finally, the operator connects the air pump's suction port and the air pump connection port 15 of the collection bottle 8 through an air pipe.

[0023] The operator adjusts the length of the handheld telescopic pole 1, and then adjusts the relative position of the sampling frame 2 on the tree to be sampled by gripping the non-slip handle 16. A graphic acquisition camera can be installed at the top of the sampling frame 2, and a matching display screen is installed on the external end of the handheld telescopic pole 1 to display the information collected by the acquisition camera in real time, thus allowing the operator to more accurately locate the sampling position.

[0024] The operator then places the sampling frame 2 against the tree surface. Using the controller, the operator starts the two hydraulic motors 4, which, through the clamping arc plate 3, drive the clamping fixing seat 5 to adhere to the tree, ensuring the sampling frame 2 is tightly fitted to the tree's exterior. At this point, the operator starts the air pump, placing the collection bottle 8 under non-negative pressure. The operator then starts the sampling motor 11, whose drive end rotates the sampling drill bit 12. Simultaneously, the drive end of the working hydraulic actuator 13 slowly extends, allowing the sampling motor 11 to drive the sampling drill bit 12 to slide within the sampling slide 10. This allows the rotating sampling drill bit 12 to continuously drill into the tree, continuously extracting sample debris. This debris enters the sample sealing gasket 6 and the collection groove 7, finally falling through the collection hose 9 onto the filter screen in the collection bottle 8.

[0025] When a sufficient number of samples have been collected, the working hydraulic actuator 13 is first reset, causing the sampling motor 11 to drive the sampling drill bit 12 to reset. Then, the working hydraulic actuator 13 and the sampling motor 11 stop rotating. The operator then resets the actuator, opening the clamping arc plate 3 and canceling the connection between the sampling frame 2 and the tree. This completes one sample collection.

[0026] Example: Pine wilt disease is a devastating disease of pine trees, and rapid and accurate sampling and testing are crucial for its control. This sampling device integrates mechanical clamping, electric sampling, pneumatic collection, and visual assistance functions, making it suitable for high-altitude field operations.

[0027] The device consists of a handheld telescopic pole 1, a sampling frame 2, a clamping and fixing assembly, a sample collection assembly, a sampling assembly, and a working assembly. Its core function is to be fixed to the tree surface via the clamping mechanism, collect wood chip samples using negative pressure from an air pump after the drill bit samples, and simultaneously use a vision system for positioning assistance. The overall weight must be controlled within 5kg, and the materials are mainly aluminum alloy and engineering plastics to ensure portability and corrosion resistance.

[0028] The handheld telescopic pole 1 is made of 6061 aluminum alloy tube with an outer diameter of 32mm and a wall thickness of 1.5mm. The telescopic structure is a three-stage sleeve type with a telescopic range of 1.2–3m. The sampling frame 2 has a rectangular frame with specific dimensions of 200mm×150mm×80mm. The sampling frame 2 is made of 304 stainless steel plate bent and welded, with a sampling hole with a diameter of 20mm reserved inside. The hole circumference is thickened to 5mm for wear resistance.

[0029] The clamping arc plate 3 is an arc-shaped plate with a radius adapted to tree trunks of 50–150 mm. It is made of spring steel, 4 mm thick, and electroplated for rust prevention. The rotating shaft is connected to the output shaft of the hydraulic motor 4 via a keyway. The hydraulic motor 4 is a low-speed, high-torque motor with preferred parameters of a displacement of 5 cm³ / r, a working pressure of 10 MPa, and a maximum output torque of 20 N·m. It has a built-in encoder to provide feedback on the opening and closing angle. The clamping fixing seat 5 is a Z-shaped stamped part with embedded fixing nails 14, the nail tips of which are slightly protruding to penetrate the bark. Rubber pads are added between the hydraulic motor 4 and the sampling frame 2 for shock absorption. The opening and closing angle range of the clamping arc plate 3 is 0–90°, controlled by the hydraulic system.

[0030] The sampling slide 10 is a linear guide type, and the sampling motor 11 is a brushless DC motor with a planetary reducer to increase torque. The working hydraulic unit 13 is a double-acting hydraulic cylinder with the following parameters: cylinder diameter 32mm, stroke 100mm, maximum thrust 500N, and speed controllable range 0.1–5mm / s. The tail hinge is bolted to the sampling frame 2.

[0031] The main power system is supplied by an external AC 220V±10% / 50Hz input, connected to the control box via a waterproof interface. The switching power supply outputs DC 24V / 20A, with a backup lithium battery pack providing 2 hours of continuous operation. The hydraulic power unit consists of an electric hydraulic pump with the following parameters: output pressure 12MPa, flow rate 5L / min, and includes overheat protection and a pressure relay. The oil circuit is equipped with a filter and an oil temperature monitoring sensor.

[0032] The core controller PLC is a Siemens S7-1200 with 14 digital inputs and 10 outputs, and an SM1231 analog module. The programming software is TIA Portal V17, using structured text language to write the control logic. Sensor configuration: An image acquisition camera uses OpenCV algorithm to identify tree bark texture, with a positioning error ≤1mm. Four encoders on the hydraulic motors are connected to the PLC's high-speed counter, and a displacement sensor on the working hydraulic actuator (13) is connected to the PLC's analog input. Actuator drive configuration: The hydraulic proportional valve is controlled by the PLC's analog output module; the sampling motor (11) has frequency converter parameters set to: acceleration time 2s, deceleration time 1s.

[0033] On-site operation procedures: Step 1: Assemble the device. Screw the sampling frame 2 into the top of the handheld telescopic rod 1 with a torque of 25 N·m. Connect the collection hose 9 to the collection bottle 8 and the collection tank 7 with a hose clamp tightening torque of 3 N·m.

[0034] Step 2: Positioning and securing. The operator grips the non-slip handle 16 and adjusts the telescopic rod to the desired length. Set the drilling depth via the HMI touchscreen. Ensure the sampling frame 2 fits snugly against the tree surface.

[0035] Step 3: Sampling and collection. Start the air pump, and the sampling motor 11 will start automatically. The working hydraulic unit 13 will advance the drill bit, and the sawdust will be sucked into the collection bottle 8 through the collection tank 7.

[0036] Step 4: Sample processing. Remove collection bottle 8 and label it (sample number, geographical coordinates, tree species, time).

[0037] In the description of this utility model, the term "multiple" refers to two or more. Unless otherwise explicitly defined, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0038] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A sampling device for detecting pine wilt disease, comprising: The handheld telescopic pole (1) and the sampling frame (2), wherein the sampling frame (2) is disposed at the top of the handheld telescopic pole (1), characterized in that it further includes: Two sets of clamping and fixing components are respectively movably arranged on the rear wall of the sampling frame (2), and the two sets of clamping and fixing components are symmetrically arranged on the rear wall of the rear wall. A sample collection assembly is fixedly installed on the inner wall of the sampling frame (2); A sampling assembly, which is movably mounted on top of the sampling frame (2); The feed assembly is disposed on the top of the sampling frame (2), and the drive end of the feed assembly is connected to the sampling assembly; The two sets of clamping and fixing components include: A clamping arc plate (3) is movably mounted on the rear wall of the sampling frame (2) via a rotating shaft; Hydraulic motor (4) is installed on the rear wall of the sampling frame (2), and the driving end of the hydraulic motor (4) is connected to the clamping arc plate (3) through a rotating shaft. The driving end of the hydraulic motor (4) can control the opening and closing angle of the clamping arc plate (3). The clamping fixing seat (5) is movably mounted at the tail of the clamping arc plate (3) via a rotating shaft.

2. The sampling device for detecting pine wilt disease according to claim 1, characterized in that, The sample collection component includes: Sample sealing gasket (6), the sample sealing gasket (6) is disposed on the inner wall surface of the sampling frame (2); Collection groove (7), the collection groove (7) is disposed on the lower wall surface of the sample sealing gasket (6); Collection bottle (8), which is movably mounted outside the handheld telescopic rod (1) via a bracket; A collection hose (9) is connected between the collection bottle (8) and the collection tank (7).

3. The sampling device for detecting pine wilt disease according to claim 1, characterized in that, The sampling component includes: Sampling slide (10), the sampling slide (10) is set on the upper wall of the sampling frame (2); A sampling motor (11) is movably disposed inside the sampling slide (10), and the sampling motor (11) can move inside the sampling slide (10); The sampling drill bit (12) is located at the drive end of the sampling motor (11), and the sampling frame (2) is provided with a sampling hole. The sampling drill bit (12) passes through the sampling hole of the sampling frame (2).

4. The sampling device for detecting pine wilt disease according to claim 1, characterized in that, The feed assembly includes: The working hydraulic device (13) is installed on the upper wall of the sampling frame (2), and the driving end of the working hydraulic device (13) is connected to the sampling motor (11).

5. The sampling device for detecting pine wilt disease according to claim 1, characterized in that, The inner wall of the clamping and fixing seat (5) is provided with several fixing nails (14).

6. The sampling device for detecting pine wilt disease according to claim 2, characterized in that, The collection bottle (8) is equipped with an isolation net inside, and the lower wall of the collection bottle (8) is equipped with an air pump connection port (15).

7. The sampling device for detecting pine wilt disease according to claim 2, characterized in that, The sample sealing gasket (6) is made of soft rubber.

8. The sampling device for detecting pine wilt disease according to claim 1, characterized in that, The lower end of the handheld telescopic rod (1) is provided with a non-slip handle (16).

9. The sampling device for detecting pine wilt disease according to claim 2, characterized in that, The collection hose (9) is an industrial telescopic hose.

10. The sampling device for detecting pine wilt disease according to claim 1, characterized in that, The upper wall of the sampling frame (2) is equipped with an image acquisition camera, and the tail of the handheld telescopic rod (1) is equipped with an image display screen.

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