Forestry plant disease and insect pest prevention and monitoring device

Abstract

The invention discloses a forestry plant disease and insect pest prevention and monitoring device, and relates to the technical field of disease and insect pest prevention and monitoring. The monitoring mechanism comprises a sliding groove formed in the inner wall of the monitoring cover, the inner wall of the sliding groove is in sealed sliding connection with a conductive plate, a first cavity is formed in the monitoring cover, the inner wall of the first cavity is in sealed sliding connection with a sliding plug, and a spring is jointly and fixedly connected between the inner wall of the first cavity and the sliding plug; a second cavity is formed in the monitoring cover, a plurality of one-way spraying holes are formed in the inner wall of the second cavity, and a mounting cavity is formed in the monitoring cover. According to the device, diseases and pests can be automatically monitored according to the neoplasm condition of plant root systems, insecticidal liquid can be automatically sprayed for deinsectization, compared with regular spraying of the insecticidal liquid, the device only sprays the insecticidal liquid when plant diseases and insect pests occur, the spraying frequency of the insecticidal liquid can be reduced, the content of the insecticidal liquid in soil is further reduced, and the device is convenient to use. The plant growth is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of pest prevention and monitoring, and particularly relates to a pest prevention and monitoring device for forestry plants. Background Art

[0002] Forestry refers to the production department that protects the ecological environment, maintains ecological balance, cultivates and protects forests to obtain timber and other forest products, and utilizes the natural characteristics of forest trees to play a protective role, and is an important part of the national economy.

[0003] Currently, when monitoring the growth of forestry plants, usually the stems and leaves on the ground surface are monitored to observe whether they are damaged by pests and diseases. When inspecting the roots and stems for pests and diseases, the plant roots need to be dug out and then observed, and then buried in the soil afterwards. Frequent inspections will damage the plant roots, and since the existing monitoring equipment cannot monitor the roots, it is necessary to spray insecticide regularly, which will cause the content of insecticide in the soil components to be too high and affect the growth of plants.

[0004] Based on this, we propose a pest prevention and monitoring device for forestry plants. Summary of the Invention

[0005] The purpose of the present invention is to solve the deficiencies existing in the prior art, and to propose a pest prevention and monitoring device for forestry plants.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions: A pest prevention and monitoring device for forestry plants, including a monitoring cover; A monitoring mechanism, the monitoring mechanism includes a chute opened on the inner wall of the monitoring cover, a conductive plate is hermetically slidably connected to the inner wall of the chute, a first cavity is opened in the monitoring cover, a sliding plug is hermetically slidably connected to the inner wall of the first cavity, a spring is fixedly connected between the inner wall of the first cavity and the sliding plug, a second cavity is opened in the monitoring cover, a plurality of one-way spray holes are opened on the inner wall of the second cavity, an installation cavity is opened in the monitoring cover, a reciprocating lead screw is rotatably connected to the bottom of the installation cavity, the lower end of the reciprocating lead screw extends into the first cavity and is fixedly connected with a cam, the side wall of the cam is slidably abutted against the sliding plug, a torsion spring is fixedly sleeved on the side wall of the reciprocating lead screw, the lower end of the torsion spring is fixedly connected to the bottom of the installation cavity, a first one-way pipe is fixedly connected to the inner wall of the first cavity, the first cavity is communicated with the second cavity through a one-way liquid supply pipe, a slider is slidably connected to the inner wall of the installation cavity, the side wall of the reciprocating lead screw is threadedly connected with the slider, the upper end of the slider is fixedly connected with a first semi-circular block, and a second semi-circular block is fixedly connected to the side wall of the conductive plate; A driving mechanism is installed on the monitoring cover.

[0007] Preferably, the driving mechanism includes a motor fixedly connected to the upper end of the monitoring cover through a bracket. A vertical groove is formed at the upper end of the reciprocating lead screw. A plurality of electromagnets are fixedly connected to the inner wall of the vertical groove. The output end of the motor is fixedly connected to a magnetic rod, and the lower end of the magnetic rod extends into the vertical groove. A conductive sheet is embedded in the inner wall of the chute. The conductive plate, the electromagnet, the conductive sheet, and an external power supply are electrically connected through wires.

[0008] Preferably, a first solenoid valve is installed on the inner wall of the first one-way tube, and a second solenoid valve is installed on the inner wall of the one-way liquid supply tube. The first solenoid valve, the second solenoid valve, the conductive plate, the conductive sheet, and an external power supply are electrically connected through wires.

[0009] Preferably, a pH adjustment mechanism is installed on the monitoring cover. The pH adjustment mechanism includes an annular frame fixedly connected to the inner wall of the monitoring cover. A third cavity is formed in the annular frame. A plurality of one-way discharge holes are formed in the inner wall of the third cavity. The first cavity is communicated with the third cavity through a one-way liquid outlet tube. A second one-way tube and a third one-way tube are fixedly connected to the inner wall of the first cavity.

[0010] Preferably, the pH adjustment mechanism further includes a pH sensor embedded in the inner wall of the monitoring cover. A third solenoid valve is installed on the inner wall of the one-way liquid outlet tube. A fourth solenoid valve is installed on the inner wall of the second one-way tube. A fifth solenoid valve is installed on the inner wall of the third one-way tube. The pH sensor, the electromagnet, the third solenoid valve, the fourth solenoid valve, and the fifth solenoid valve are connected through a PLC control circuit.

[0011] Preferably, a ventilation hole is formed in the inner wall of the first cavity. A sixth solenoid valve is installed on the inner wall of the ventilation hole. The sixth solenoid valve, the conductive plate, the conductive sheet, and an external power supply are electrically connected through wires, and the sixth solenoid valve and the pH sensor are connected through a PLC control circuit.

[0012] Preferably, three liquid storage cavities are formed in the monitoring cover. An insecticidal liquid, an alkaline nutrient solution, and an acidic nutrient solution are respectively filled in the three liquid storage cavities. The other ends of the first one-way tube, the second one-way tube, and the third one-way tube are respectively communicated with the three liquid storage cavities. Liquid injection tubes are fixedly connected to the tops of the three liquid storage cavities.

[0013] Preferably, a floating ball is slidably connected to the inner wall of each of the three liquid storage cavities. Three fourth cavities are formed in the monitoring cover. A first conductive block is slidably connected to the inner wall of the fourth cavity. A vertical rod is fixedly connected to the lower end of the floating ball. The lower end of the vertical rod extends into the fourth cavity and is fixedly connected to the first conductive block. A second conductive block is fixedly connected to the bottom of the fourth cavity. Three warning lights are fixedly connected to the upper end of the monitoring cover. The first conductive block, the second conductive block, the warning lights, and an external power supply are electrically connected through wires.

[0014] Preferably, a ventilation groove is formed at the upper end of the monitoring cover, and a plurality of fan blades are fixedly connected to the side wall of the magnetic rod located in the ventilation groove. The ventilation groove is communicated with the second cavity through a connecting pipe.

[0015] The present invention has the following beneficial effects: 1. By setting up a monitoring mechanism and a driving mechanism, it can automatically monitor pests according to the tumor change situation of plant roots, and can also automatically spray insecticide to eliminate insects. Compared with regularly spraying insecticide, this device only sprays insecticide when the plant has pests and diseases, which can reduce the spraying frequency of insecticide, and then reduce the content of insecticide in the soil, which is beneficial to plant growth; 2. When the reciprocating lead screw rotates, the slider will first slide upward in the installation cavity. When the first semi-circular block slides to abut against the second semi-circular block, it will push the conductive plate to slide and reset in the direction away from the reciprocating lead screw. Then the conductive plate will separate from the conductive sheet, and then the electromagnet will be powered off. The reciprocating lead screw will reverse and rotate to reset under the action of the torsion spring, and then drive the slider to slide downward and reset. At this time, the spraying of insecticide will also stop. If the tumor of the plant root continues to grow and become larger, the conductive plate will be squeezed again and move to contact the conductive sheet, so as to spray insecticide again. This cycle continues until the tumor of the plant root stops; 3. By setting up a pH adjustment mechanism, it can automatically adjust the acidity and alkalinity of the soil to stabilize it within the range suitable for plant growth, so as to ensure better plant growth; 4. By setting up a floating ball, a vertical rod, a first conductive block, a second conductive block and a warning light, as the insecticide, alkaline nutrient solution or acidic nutrient solution in the liquid storage cavity is pumped out, the liquid level in the liquid storage cavity will decrease, and then the floating ball will drop, and then the first conductive block will drop. When the first conductive block contacts the second conductive block, the warning light will light up to remind the staff to add materials. Whichever warning light lights up indicates which material needs to be added. The staff can add the corresponding material to the corresponding liquid storage cavity through the liquid injection pipe; 5. By setting up a ventilation groove, fan blades and a connecting pipe, start the motor to drive the magnetic rod to rotate, and then drive a plurality of fan blades to rotate, pumping the external air into the ventilation groove. Then the air will enter the second cavity through the connecting pipe, and then the air in the second cavity will be sprayed out through a plurality of one-way spray holes, so as to increase the air content around the plant roots and be beneficial to plant growth. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of a forestry plant pest prevention and monitoring device proposed by the present invention; Figure 2 is Figure 1 a side view schematic diagram of the structure in Figure 3 is Figure 1Schematic cross-sectional view of the middle structure; Figure 4 is Figure 3 An enlarged schematic view of the structure at location A in Figure 5 is Figure 3 An enlarged schematic view of the structure at location B in Figure 6 is Figure 3 An enlarged schematic view of the structure at location C in Figure 7 is Figure 3 An enlarged schematic view of the structure at location D in

[0017] In the figure: 1, monitoring cover; 2, chute; 3, conductive plate; 4, first cavity; 5, sliding plug; 6, spring; 7, second cavity; 8, one-way spray hole; 9, reciprocating lead screw; 10, cam; 11, torsion spring; 12, first one-way tube; 13, slider; 14, first semi-circular block; 15, second semi-circular block; 16, motor; 17, magnetic rod; 18, vertical groove; 19, electromagnet; 20, conductive sheet; 21, first solenoid valve; 22, one-way liquid supply pipe; 23, second solenoid valve; 24, annular frame; 25, third cavity; 26, one-way discharge hole; 27, pH sensor; 28, one-way liquid outlet pipe; 29, third solenoid valve; 30, second one-way tube; 31, fourth solenoid valve; 32, third one-way tube; 33, fifth solenoid valve; 34, liquid storage cavity; 35, liquid injection pipe; 36, float; 37, fourth cavity; 38, vertical rod; 39, first conductive block; 40, warning lamp; 41, ventilation groove; 42, fan blade; 43, connecting pipe; 44, vent hole; 45, sixth solenoid valve; 46, second conductive block; 47, installation cavity. Detailed implementation manners

[0018] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following detailed description of the specific implementation manners of the present invention will be given in conjunction with the accompanying drawings. Many specific details are set forth in the following description to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific implementations disclosed below.

[0019] Referring to Figure 1 - Figure 7 , a forestry plant pest prevention and monitoring device, including a monitoring cover 1; Monitoring mechanism, the monitoring mechanism includes a chute 2 opened on the inner wall of the monitoring cover 1, the inner wall of the chute 2 is hermetically and slidably connected with a conductive plate 3, an insulating sleeve is sleeved on the side wall of the conductive plate 3, which plays a good insulating role. A first cavity 4 is opened in the monitoring cover 1, a sliding plug 5 is hermetically and slidably connected to the inner wall of the first cavity 4, a spring 6 is fixedly connected between the inner wall of the first cavity 4 and the sliding plug 5. A second cavity 7 is opened in the monitoring cover 1, a plurality of one-way spray holes 8 are opened on the inner wall of the second cavity 7, and the one-way spray holes 8 only allow the air or insecticide liquid in the second cavity 7 to be discharged. An installation cavity 47 is opened in the monitoring cover 1, a reciprocating lead screw 9 is rotatably connected to the bottom of the installation cavity 47, the lower end of the reciprocating lead screw 9 extends into the first cavity 4 and is fixedly connected with a cam 10, the side wall of the cam 10 is slidably abutted against the sliding plug 5, a torsion spring 11 is fixedly sleeved on the side wall of the reciprocating lead screw 9, and the lower end of the torsion spring 11 is fixedly connected with the bottom of the installation cavity 47. A first one-way pipe 12 is fixedly connected to the inner wall of the first cavity 4, and the first one-way pipe 12 only allows the insecticide liquid to enter the first cavity 4. The first cavity 4 is communicated with the second cavity 7 through a one-way liquid supply pipe 22, and the one-way liquid supply pipe 22 only allows the insecticide liquid to enter the second cavity 7. A slider 13 is slidably connected to the inner wall of the installation cavity 47, the side wall of the reciprocating lead screw 9 is threadedly connected with the slider 13, the upper end of the slider 13 is fixedly connected with a first semi-circular block 14, and the side wall of the conductive plate 3 is fixedly connected with a second semi-circular block 15; A driving mechanism is installed on the monitoring cover 1.

[0020] The driving mechanism includes a motor 16 fixedly connected to the upper end of the monitoring cover 1 through a bracket. A vertical groove 18 is opened at the upper end of the reciprocating lead screw 9, a plurality of electromagnets 19 are fixedly connected to the inner wall of the vertical groove 18, the output end of the motor 16 is fixedly connected with a magnetic rod 17, the lower end of the magnetic rod 17 extends into the vertical groove 18 for setting, a conductive sheet 20 is embedded in the inner wall of the chute 2, and the conductive plate 3, the electromagnets 19, the conductive sheet 20 and an external power supply are electrically connected through wires.

[0021] A first solenoid valve 21 is installed on the inner wall of the first one-way pipe 12, a second solenoid valve 23 is installed on the inner wall of the one-way liquid supply pipe 22, and the first solenoid valve 21, the second solenoid valve 23, the conductive plate 3, the conductive sheet 20 and an external power supply are electrically connected through wires.

[0022] Furthermore, when plant roots are infested with pests and diseases, the plant roots will undergo tumorigenesis. The tumorigenic plant roots will grow protrusions, causing the root volume to increase. As a result, the surrounding soil will be squeezed. The soil will squeeze the conductive plate 3, causing the conductive plate 3 to slide in the chute 2 towards the direction close to the reciprocating lead screw 9. When the volume of the tumorigenic plant roots grows to a certain extent, the conductive plate 3 will slide to contact the conductive sheet 20. At this time, multiple electromagnets 19 are energized, and the first solenoid valve 21 and the second solenoid valve 23 are energized and opened. The energized electromagnet 19 generates magnetism, which will generate a magnetic suction force with the magnetic rod 17. Then, under the action of the magnetic suction force, the reciprocating lead screw 9 will rotate together with the magnetic rod 17, thereby driving the cam 10 to rotate. The cam 10 cooperates with the spring 6 to cause the sliding plug 5 to reciprocate and seal. When the sliding plug 5 slides to the right and seals under the action of the spring 6 (as Figure 5 shown), a suction force is generated. Then, the insecticide liquid in the liquid storage cavity 34 will be sucked into the first cavity 4 through the first one-way tube 12. When the cam 10 squeezes the sliding plug 5 to slide to the left and seal, the insecticide liquid in the first cavity 4 will be squeezed into the second cavity 7 through the one-way liquid supply tube 22. Finally, the insecticide liquid will flow out through multiple one-way spray holes 8, blend into the soil around the plant roots, and finally be absorbed by the plant roots, thereby playing an insecticidal role and preventing the plant roots from continuing to undergo tumorigenesis. Therefore, the pests and diseases can be automatically monitored according to the tumorigenesis situation of the plant roots, and the insecticide liquid can also be automatically sprayed for insect control. Compared with the regular spraying of insecticide liquid, this device only sprays the insecticide liquid when the plant has pests and diseases, which can reduce the spraying frequency of the insecticide liquid, thereby reducing the content of the insecticide liquid in the soil and being beneficial to plant growth.

[0023] Furthermore, when the reciprocating lead screw 9 rotates, the slider 13 will first slide upward in the installation cavity 47. When the first semi-circular block 14 slides to abut against the second semi-circular block 15, it will push the conductive plate 3 to slide and reset in the direction away from the reciprocating lead screw 9. Then, the conductive plate 3 will separate from the conductive sheet 20, and then the electromagnet 19 will be de-energized. The reciprocating lead screw 9 will reverse and rotate to reset under the action of the torsion spring 11, thereby driving the slider 13 to slide downward and reset. At this time, the spraying of the insecticide liquid also stops. If the plant roots continue to undergo tumorigenesis and grow larger, the conductive plate 3 will be squeezed again and move to contact the conductive sheet 20, thereby spraying the insecticide liquid again. This cycle continues until the plant roots stop undergoing tumorigenesis.

[0024] A pH adjustment mechanism is installed on the monitoring cover 1. The pH adjustment mechanism includes an annular frame 24 fixedly connected to the inner wall of the monitoring cover 1. A third chamber 25 is formed inside the annular frame 24. A plurality of one-way discharge holes 26 are formed in the inner wall of the third chamber 25. The one-way discharge holes 26 only allow the liquid in the third chamber 25 to be discharged. The first chamber 4 is communicated with the third chamber 25 through a one-way liquid discharge pipe 28. The one-way liquid discharge pipe 28 only allows the liquid in the first chamber 4 to enter the third chamber 25. A second one-way pipe 30 and a third one-way pipe 32 are fixedly connected to the inner wall of the first chamber 4. The second one-way pipe 30 and the third one-way pipe 32 only allow external liquid to enter the first chamber 4.

[0025] The pH adjustment mechanism further includes a pH sensor 27 embedded in the inner wall of the monitoring cover 1. A third solenoid valve 29 is installed on the inner wall of the one-way liquid discharge pipe 28. A fourth solenoid valve 31 is installed on the inner wall of the second one-way pipe 30. A fifth solenoid valve 33 is installed on the inner wall of the third one-way pipe 32. The pH sensor 27, the electromagnet 19, the third solenoid valve 29, the fourth solenoid valve 31, and the fifth solenoid valve 33 are connected through a PLC control circuit.

[0026] Furthermore, for the growth of most plants, the pH value in the range of 6 - 8 is most suitable for plant growth. Therefore, when the pH sensor 27 senses that the soil pH value around the plant roots is lower than 6, the pH sensor 27 will send a signal to energize the electromagnet 19, the third solenoid valve 29, and the fourth solenoid valve 31 through the PLC control circuit to turn them on. At this time, the magnetic rod 17 can drive the reciprocating lead screw 9 to rotate, and then drive the cam 10 to rotate. Cooperating with the spring 6, the sliding plug 5 slides reciprocally in a sealed manner. Then, the alkaline nutrient solution in the liquid storage cavity 34 will be pumped into the first cavity 4 through the second one-way tube 30. Then, the alkaline nutrient solution will enter the third cavity 25 through the one-way liquid outlet tube 28. Finally, the alkaline nutrient solution will flow out through multiple one-way discharge holes 26 and mix with the soil around the plant roots, causing the pH value of the soil to rise until it reaches the range of 6 - 8. At this time, the pH sensor 27 will send a signal to cut off the power supply to the electromagnet 19, the third solenoid valve 29, and the fourth solenoid valve 31 to turn them off, thereby stopping the pumping of the alkaline nutrient solution. On the contrary, when the pH value of the soil is higher than 8, the pH sensor 27 will send a signal to energize the electromagnet 19, the third solenoid valve 29, and the fifth solenoid valve 33 through the PLC control circuit to turn them on. At this time, the magnetic rod 17 can drive the reciprocating lead screw 9 to rotate, and then drive the cam 10 to rotate. Cooperating with the spring 6, the sliding plug 5 slides reciprocally in a sealed manner. Then, the acidic nutrient solution in the liquid storage cavity 34 will be pumped into the first cavity 4 through the third one-way tube 32. Then, the acidic nutrient solution will enter the third cavity 25 through the one-way liquid outlet tube 28. Finally, the acidic nutrient solution will flow out through multiple one-way discharge holes 26 and mix with the soil around the plant roots, causing the pH value of the soil to decrease until it reaches the range of 6 - 8. At this time, the pH sensor 27 will send a signal to cut off the power supply to the electromagnet 19, the third solenoid valve 29, and the fifth solenoid valve 33 to turn them off, thereby stopping the pumping of the acidic nutrient solution. Therefore, the acidity and alkalinity of the soil can be automatically adjusted to stabilize within the range suitable for plant growth, thus ensuring better plant growth.

[0027] Vent holes 44 are provided on the inner wall of the first cavity 4, and a sixth solenoid valve 45 is installed on the inner wall of the vent holes 44. The sixth solenoid valve 45, the conductive plate 3, the conductive sheet 20, and the external power supply are electrically connected through wires, and the sixth solenoid valve 45 is connected to the pH sensor 27 through the PLC control circuit.

[0028] Three liquid storage cavities 34 are provided in the monitoring cover 1, and the three liquid storage cavities 34 are respectively filled with insecticide, alkaline nutrient solution, and acidic nutrient solution. The other ends of the first one-way tube 12, the second one-way tube 30, and the third one-way tube 32 are respectively communicated with the three liquid storage cavities 34, and liquid injection tubes 35 are fixedly connected to the tops of the three liquid storage cavities 34.

[0029] A floating ball 36 is slidably connected to the inner wall of each of the three liquid storage chambers 34. Three fourth chambers 37 are formed in the monitoring cover 1. A first conductive block 39 is slidably connected to the inner wall of the fourth chamber 37. A vertical rod 38 is fixedly connected to the lower end of the floating ball 36. The lower end of the vertical rod 38 extends into the fourth chamber 37 and is fixedly connected to the first conductive block 39. A second conductive block 46 is fixedly connected to the bottom of the fourth chamber 37. Three warning lights 40 are fixedly connected to the upper end of the monitoring cover 1. The first conductive block 39, the second conductive block 46, the warning lights 40 and an external power supply are electrically connected by wires.

[0030] Further, as the insecticidal liquid, alkaline nutrient solution or acidic nutrient solution in the liquid storage chamber 34 is pumped out, the liquid level in the liquid storage chamber 34 will decrease, and then the floating ball 36 will descend, and then the first conductive block 39 will descend. When the first conductive block 39 contacts the second conductive block 46, the warning light 40 will light up to remind the staff to add materials. Whichever warning light 40 lights up indicates which material needs to be added. The staff can add the corresponding material into the corresponding liquid storage chamber 34 through the liquid injection pipe 35.

[0031] A ventilation groove 41 is formed in the upper end of the monitoring cover 1. A plurality of fan blades 42 are fixedly connected to the side wall of the magnetic rod 17 located in the ventilation groove 41. The ventilation groove 41 is communicated with the second chamber 7 through a communicating pipe 43.

[0032] Further, start the motor 16 to drive the magnetic rod 17 to rotate, and then drive the plurality of fan blades 42 to rotate, sucking the external air into the ventilation groove 41. Then the air will enter the second chamber 7 through the communicating pipe 43. Then the air in the second chamber 7 will be ejected through a plurality of one-way spray holes 8, so as to increase the air content around the plant roots and be beneficial to the growth of plants.

[0033] In the present invention, a trench for burying is dug around the plant roots according to the shape of the monitoring cover 1, and then the monitoring cover 1 is buried in the soil so that the plant roots and the surrounding soil are surrounded by the monitoring cover 1. Then start the motor 16 to drive the magnetic rod 17 to rotate, and then drive the plurality of fan blades 42 to rotate, sucking the external air into the ventilation groove 41. Then the air will enter the second chamber 7 through the communicating pipe 43. Then the air in the second chamber 7 will be ejected through a plurality of one-way spray holes 8, so as to increase the air content around the plant roots and be beneficial to the growth of plants.

[0034] When plant roots are affected by pests and diseases, the plant roots will undergo tumorigenesis. The tumorigenic plant roots will grow protrusions, causing the root volume to increase. As a result, the surrounding soil will be squeezed, and the soil will squeeze the conductive plate 3, causing the conductive plate 3 to slide in the chute 2 in the direction close to the reciprocating lead screw 9. When the volume of the tumorigenic plant roots grows to a certain extent, the conductive plate 3 will slide to contact the conductive sheet 20. At this time, multiple electromagnets 19 are energized, and the first solenoid valve 21 and the second solenoid valve 23 are energized and opened, while the sixth solenoid valve 45 is energized and closed, causing the ventilation hole 44 to close. As a result, a closed space is formed inside the first chamber 4, preparing for pumping alkaline nutrient solution or acidic nutrient solution. When the electromagnet 19 is energized to generate magnetism, a magnetic attraction force will be generated between it and the magnetic rod 17. As a result, under the action of the magnetic attraction force, the reciprocating lead screw 9 will rotate together with the magnetic rod 17, thereby driving the cam 10 to rotate. The cam 10 cooperates with the spring 6 to cause the sliding plug 5 to reciprocate and seal. When the sliding plug 5 slides to the right and seals under the action of the spring 6 (as Figure 5 shown), a suction force is generated, and the insecticide liquid in the liquid storage chamber 34 will be pumped into the first chamber 4 through the first one-way tube 12. When the cam 10 squeezes the sliding plug 5 to slide to the left and seal, the insecticide liquid in the first chamber 4 will be squeezed into the second chamber 7 through the one-way liquid supply tube 22. Finally, the insecticide liquid will flow out through multiple one-way spray holes 8, be incorporated into the soil around the plant roots, and finally be absorbed by the plant roots, thus playing an insecticidal role and preventing the plant roots from continuing to undergo tumorigenesis. Therefore, it is possible to automatically monitor pests and diseases according to the tumorigenesis situation of plant roots, and it can also automatically spray insecticide liquid for pest control. Compared with regular spraying of insecticide liquid, this device only sprays insecticide liquid when the plant has pests and diseases, which can reduce the spraying frequency of insecticide liquid, thereby reducing the content of insecticide liquid in the soil and being beneficial to plant growth.

[0035] When the reciprocating lead screw 9 rotates, the slider 13 will first slide upward in the installation cavity 47. When the first semi-circular block 14 slides to abut against the second semi-circular block 15, it will push the conductive plate 3 to slide and reset in the direction away from the reciprocating lead screw 9. As a result, the conductive plate 3 will separate from the conductive sheet 20, and then the electromagnet 19 will be de-energized. The reciprocating lead screw 9 will reverse and rotate to reset under the action of the torsion spring 11, thereby driving the slider 13 to slide downward and reset. At this time, the spraying of the insecticide liquid also stops. If the plant roots continue to undergo tumorigenesis and become larger, the conductive plate 3 will be squeezed again to move into contact with the conductive sheet 20, thereby spraying the insecticide liquid again. This cycle repeats until the plant roots stop undergoing tumorigenesis.

[0036] In addition, for the growth of most plants, the pH value in the range of 6 - 8 is most suitable for plant growth. Therefore, when the pH sensor 27 senses that the soil pH value around the plant roots is lower than 6, the pH sensor 27 will send a signal to energize the electromagnet 19, the third solenoid valve 29, and the fourth solenoid valve 31 through the PLC control circuit to turn them on, energize the sixth solenoid valve 45 to turn it off. At this time, the magnetic rod 17 can drive the reciprocating lead screw 9 to rotate, and then drive the cam 10 to rotate. Cooperating with the spring 6, the sliding plug 5 slides reciprocally and sealingly. Then, the alkaline nutrient solution in the liquid storage cavity 34 will be pumped into the first cavity 4 through the second one-way tube 30. Then, the alkaline nutrient solution will enter the third cavity 25 through the one-way liquid outlet tube 28. Finally, the alkaline nutrient solution will flow out through multiple one-way discharge holes 26 and mix with the soil around the plant roots, causing the pH value of the soil to rise until it reaches the range of 6 - 8. The pH sensor 27 will send a signal to de-energize the electromagnet 19, the third solenoid valve 29, and the fourth solenoid valve 31 to turn them off, thereby stopping the pumping of the alkaline nutrient solution.

[0037] On the contrary, when the pH value of the soil is higher than 8, the pH sensor 27 will send a signal to energize the electromagnet 19, the third solenoid valve 29, and the fifth solenoid valve 33 through the PLC control circuit to turn them on, energize the sixth solenoid valve 45 to turn it off. At this time, the magnetic rod 17 can drive the reciprocating lead screw 9 to rotate, and then drive the cam 10 to rotate. Cooperating with the spring 6, the sliding plug 5 slides reciprocally and sealingly. Then, the acidic nutrient solution in the liquid storage cavity 34 will be pumped into the first cavity 4 through the third one-way tube 32. Then, the acidic nutrient solution will enter the third cavity 25 through the one-way liquid outlet tube 28. Finally, the acidic nutrient solution will flow out through multiple one-way discharge holes 26 and mix with the soil around the plant roots, causing the pH value of the soil to decrease until it reaches the range of 6 - 8. The pH sensor 27 will send a signal to de-energize the electromagnet 19, the third solenoid valve 29, and the fifth solenoid valve 33 to turn them off, thereby stopping the pumping of the acidic nutrient solution. Therefore, the acidity and alkalinity of the soil can be automatically adjusted to stabilize within the range suitable for plant growth, thus ensuring better plant growth.

[0038] As the insecticide, alkaline nutrient solution, or acidic nutrient solution in the liquid storage cavity 34 is pumped out, the liquid level in the liquid storage cavity 34 will drop, and then the float 36 will descend, and then the first conductive block 39 will descend. When the first conductive block 39 contacts the second conductive block 46, the warning light 40 will light up to remind the staff to add materials. Whichever warning light 40 lights up indicates which material needs to be added. The staff can add the corresponding material into the corresponding liquid storage cavity 34 through the liquid injection tube 35.

[0039] As described above, it is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent replacements or changes should be covered within the protection scope of the present invention.

Claims

1. A forestry plant pest prevention and monitoring device, characterized in that: include: Monitoring cover (1); A monitoring mechanism, the monitoring mechanism comprising a slide groove (2) provided on the inner wall of a monitoring cover (1), the inner wall of the slide groove (2) being sealingly and slidably connected to a conductive plate (3), a first cavity (4) provided in the monitoring cover (1), a sliding plug (5) being sealingly and slidably connected to the inner wall of the first cavity (4), a spring (6) being fixedly connected between the inner wall of the first cavity (4) and the sliding plug (5), a second cavity (7) provided in the monitoring cover (1), a plurality of one-way spray holes (8) provided on the inner wall of the second cavity (7), an installation cavity (47) provided in the monitoring cover (1), a reciprocating screw (9) being rotatably connected to the bottom of the installation cavity (47), the lower end of the reciprocating screw (9) extending to the first cavity (4) A cam (10) is fixedly connected therein, the side wall of the cam (10) and the sliding plug (5) are slidably opposed to each other, a torsion spring (11) is provided on the fixed sleeve of the side wall of the reciprocating screw (9), the lower end of the torsion spring (11) is fixedly connected to the bottom of the installation cavity (47), a first one-way tube (12) is fixedly connected to the inner wall of the first cavity (4), the first cavity (4) is connected to the second cavity (7) via a one-way liquid supply tube (22), a slider (13) is slidably connected to the inner wall of the installation cavity (47), the side wall of the reciprocating screw (9) is threadedly connected to the slider (13), the upper end of the slider (13) is fixedly connected to a first semicircular block (14), and the side wall of the conductive plate (3) is fixedly connected to a second semicircular block (15); A driving mechanism is installed on the monitoring cover (1).

2. A forestry plant pest prevention and monitoring device according to claim 1, characterized in that: in: The driving mechanism comprises a motor (16) fixedly connected to the upper end of the monitoring cover (1) via a bracket, a vertical slot (18) is provided at the upper end of the reciprocating screw (9), a plurality of electromagnets (19) are fixedly connected to the inner wall of the vertical slot (18), a magnetic rod (17) is fixedly connected to the output end of the motor (16), the lower end of the magnetic rod (17) extends into the vertical slot (18), a conductive sheet (20) is embedded in the inner wall of the slide slot (2), and the conductive plate (3), the electromagnet (19), the conductive sheet (20) and an external power source are electrically connected via a wire.

3. A forestry plant pest prevention and monitoring device according to claim 2, characterized in that: in: A first solenoid valve (21) is installed on the inner wall of the first one-way tube (12), a second solenoid valve (23) is installed on the inner wall of the one-way liquid supply tube (22), and the first solenoid valve (21), the second solenoid valve (23), the conductive plate (3), the conductive sheet (20) and an external power source are electrically connected via a wire.

4. The forestry plant pest prevention and monitoring device according to claim 1, characterized in that: in: The monitoring cover (1) is provided with a pH adjustment mechanism, the pH adjustment mechanism comprising an annular frame (24) fixedly connected to the inner wall of the monitoring cover (1), a third cavity (25) being provided in the annular frame (24), a plurality of one-way holes (26) being provided on the inner wall of the third cavity (25), the first cavity (4) being connected to the third cavity (25) via a one-way liquid outlet pipe (28), and a second one-way pipe (30) and a third one-way pipe (32) being fixedly connected to the inner wall of the first cavity (4).

5. The forestry plant pest prevention and monitoring device according to claim 4, characterized in that: in: The pH adjustment mechanism further comprises a pH sensor (27) embedded in the inner wall of the monitoring cover (1); a third solenoid valve (29) is installed on the inner wall of the one-way liquid outlet pipe (28); a fourth solenoid valve (31) is installed on the inner wall of the second one-way pipe (30); and a fifth solenoid valve (33) is installed on the inner wall of the third one-way pipe (32); and the pH sensor (27), the electromagnet (19), the third solenoid valve (29), the fourth solenoid valve (31) and the fifth solenoid valve (33) are connected via a PLC control circuit.

6. The forestry plant pest prevention and monitoring device according to claim 5, characterized in that: in: A vent hole (44) is formed on the inner wall of the first chamber (4), and a sixth solenoid valve (45) is installed on the inner wall of the vent hole (44). The sixth solenoid valve (45), the conductive plate (3), the conductive sheet (20) and an external power source are electrically connected via a wire, and the sixth solenoid valve (45) and the pH sensor (27) are connected via a PLC control circuit.

7. A forestry plant pest prevention and monitoring device according to claim 6, characterized in that: in: The monitoring cover (1) is provided with three liquid storage chambers (34), the three liquid storage chambers (34) being filled with insecticide, alkaline nutrient solution and acidic nutrient solution respectively; the other ends of the first one-way tube (12), the second one-way tube (30) and the third one-way tube (32) are respectively connected to the three liquid storage chambers (34); and the tops of the three liquid storage chambers (34) are fixedly connected with liquid injection tubes (35).

8. The forestry plant pest prevention and monitoring device according to claim 7, characterized in that: in: The inner walls of the three liquid storage chambers (34) are all slidably connected to floating balls (36), the monitoring cover (1) is provided with three fourth chambers (37), the inner walls of the fourth chambers (37) are slidably connected to first conductive blocks (39), the lower ends of the floating balls (36) are fixedly connected to vertical rods (38), the lower ends of the vertical rods (38) extend into the fourth chamber (37) and are fixedly connected to the first conductive blocks (39), the bottom of the fourth chamber (37) is fixedly connected to a second conductive block (46), the upper end of the monitoring cover (1) is fixedly connected to three warning lights (40), and the first conductive block (39), the second conductive block (46), the warning lights (40) and an external power source are electrically connected via wires.

9. The forestry plant pest prevention and monitoring device according to claim 2, characterized in that: in: A ventilation slot (41) is provided at the upper end of the monitoring cover (1); a plurality of fan blades (42) are fixedly connected to the side wall of the magnetic rod (17) located in the ventilation slot (41); and the ventilation slot (41) is connected to the second chamber (7) via a connecting pipe (43).

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