Injection fertilization and pesticide application device and system for prevention and control of fruit tree root system diseases and insect pests

Abstract

The invention relates to the technical field of fruit tree cultivation disease and insect pest prevention and control, in particular to an injection fertilization and pesticide application device and system for fruit tree root system disease and insect pest prevention and control. The injection assembly comprises a discharge connector, a quantitative frame, a control valve, a transfer frame, a connecting component and a quantitative guide-out component. The multiple discharging connectors are installed at the bottom of the pesticide storage box, the quantitative frame is connected with the movable base through the connecting component, the control valve is installed at the bottom of the quantitative frame, the transfer frame is connected with the discharging connectors and installed on the quantitative frame, the connecting component is connected with the movable base and used for installing the quantitative frame, and the quantitative guiding-out component is connected with the quantitative frame. The device is simple in structure and convenient to use and is used for quantitatively guiding out liquid medicine in the quantitative frame, the dosage of the liquid medicine needing to be injected can be set in advance through arranged components, then simultaneous multi-direction injection is conducted, the working time of fruit tree root medicine injection conducted by operators is greatly shortened, and the efficiency of injection fertilization is improved.

Description

Technical Field

[0001] The invention relates to the technical field of fruit tree cultivation pest control, and in particular to an injection fertilization and pesticide application device and system for fruit tree root pest control. Background Art

[0002] The injection fertilizer and pesticide device for the prevention and control of fruit tree root diseases and insect pests is a device specially designed for the prevention and control of fruit tree root diseases and insect pests. It can accurately inject the liquid medicine into the soil layer where the fruit tree roots are located, thereby improving the application effect of the liquid medicine and saving costs;

[0003] The existing injection fertilization and drug application device for the prevention and control of root diseases and insect pests of fruit trees mainly includes a liquid storage structure and an injection structure. The liquid medicine stored in the liquid storage structure can be injected through the injection structure. The liquid storage structure usually has a large capacity to ensure sufficient supply of liquid medicine. The injection structure usually includes an injection piece, a piston piece and a transfer piece. The injection piece is provided with an injection cavity. The bottom of the injection cavity is recessed downward to form a piston cavity. The first outlet penetrates the piston cavity and is used to be inserted into the soil layer where the plant roots are located. The piston piece is a hollow structure, including a piston body and a raised portion surrounding the side of the piston body. The raised portion is slidably arranged in the injection cavity, and the injection cavity is divided into an air inlet cavity and a liquid inlet cavity. The piston body is provided with a piston inlet and a piston outlet. The piston inlet is connected to the liquid inlet cavity, and the piston outlet is used to be connected to the first outlet. The transfer piece is generally a liquid inlet cavity connecting the liquid storage tank and the injection piece, ensuring that the liquid medicine can flow smoothly from the liquid storage tank into the injection piece.

[0004] In actual use, the existing injection fertilization and pesticide application devices for the prevention and control of root diseases and insect pests of fruit trees are mostly driven by operators to move the device to the vicinity of the fruit trees that need to be injected in sequence, and then set up the corresponding injection structure. Finally, the fruit trees are injected with corresponding doses of pesticides according to the actual growth conditions. In this way, when more fruit trees need to be injected, pushing the entire device to carry out coordinated injections in sequence will result in a longer injection fertilization time, resulting in lower efficiency during injection fertilization. Summary of the invention

[0005] The purpose of the present invention is to provide an injection fertilization and pesticide application device and system for the prevention and control of root diseases and insect pests of fruit trees. The device and system can set the dosage of the injection liquid in advance through the provided components, and then perform multiple injections simultaneously, which greatly reduces the working time of operators for injecting drugs into the roots of fruit trees and improves the efficiency of injection fertilization.

[0006] To achieve the above-mentioned purpose, the present invention provides an injection fertilization and drug application device and system for preventing and controlling root diseases and insect pests of fruit trees, comprising a mobile base and a drug storage box, wherein the drug storage box is arranged on the mobile base, and further comprises an injection assembly;

[0007] The injection assembly includes a discharge joint, a quantitative rack, a control valve, an adapter rack, a connecting member and a quantitative derivation member; a plurality of the discharge joints are installed at the bottom of the medicine storage box, the quantitative rack is connected to the mobile base through the connecting member, the control valve is installed at the bottom of the quantitative rack, the adapter rack is connected to the discharge joint and is installed on the quantitative rack, the connecting member is connected to the mobile base for installing the quantitative rack, and the quantitative derivation member is connected to the quantitative rack for completing the quantitative derivation of the medicine solution inside the quantitative rack.

[0008] Wherein, the connecting component includes a mounting shell, a matching guide rail and a snap-in guide block, the mounting shell is sleeved on the quantitative rack; the matching guide rail is fixedly mounted on the mobile base; the snap-in guide block is fixedly mounted on the mounting shell and matches with the matching guide rail.

[0009] Among them, the quantitative export component includes a movable baffle, a control cylinder, an interception plate, an electric push rod, a liquid level sensing component and a pressurized ejection component, the movable baffle is slidably installed on the quantitative rack; the output end of the control cylinder is connected to the movable baffle, and the control cylinder is installed on the quantitative rack; the interception plate is slidably installed on the adapter rack; the output end of the electric push rod is connected to the interception plate and installed on the adapter rack; the liquid level sensing component is connected to the movable baffle for sensing the liquid level of the liquid loaded inside the quantitative rack; the pressurized ejection component is connected to the quantitative rack for exporting the liquid introduced into the quantitative rack.

[0010] Among them, the liquid level sensing component includes a sliding float and a contact sensing mechanism, the sliding float is slidably installed at the bottom of the movable baffle; the contact sensing mechanism is electrically connected to the electric push rod, and is electrically connected to the control valve, and is connected to the sliding float, for sensing the floating height of the sliding float and controlling the corresponding element according to the sensing result.

[0011] Among them, the pressurized ejection component includes a pressurized pump, a high-pressure tank, a pressure sensor and a connecting valve, the pressurized pump is installed on one side of the quantitative rack; the high-pressure tank is connected to the pressurized pump and installed on one side of the quantitative rack; the pressure sensor is installed on the high-pressure tank; the connecting valve is electrically connected to the contact sensing mechanism, connected to the movable baffle, and installed on the top of the high-pressure tank.

[0012] Wherein, the injection assembly also includes an injection pipe, a nail fixing frame and a driving component, the injection pipe is connected to the control valve; the nail fixing frame is connected to the injection pipe; the driving component is connected to the injection pipe and is used to drive the injection pipe to be inserted into the root area of ​​the fruit tree.

[0013] Among them, the driving component includes a driving screw, an external shell and a reversing driving mechanism, the driving screw is threadedly connected to the injection tube; the external shell is fixedly installed on one side of the nail fixing frame; the reversing driving mechanism is connected to the driving screw and installed on the external shell for driving the driving screw.

[0014] The present invention provides an injection fertilization and drug application device and system for the prevention and control of root diseases and insect pests of fruit trees. In actual operation, the installation of the corresponding quantitative rack is first completed by the provided connecting component. When installing the quantitative rack, the user can select the number of quantitative racks and corresponding mechanisms to be installed according to actual conditions, so as to fertilize and inject drugs to multiple fruit trees. Then, the discharge joint connected to the adapter rack is opened to allow the drug liquid inside the drug storage box to flow into the correspondingly connected adapter rack. After that, the specified dose of drug is introduced into the quantitative rack through the provided quantitative lead-out component, and then the specified dose of drug can be injected, thereby completing the entire injection fertilization and drug application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0016] Figure 1 It is a schematic diagram of the structure of the injection fertilization and pesticide application device and the overall system for preventing and controlling root diseases and insect pests of fruit trees according to the present invention.

[0017] Figure 2 It is a schematic diagram of the installation structure of the quantitative rack of the present invention.

[0018] Figure 3 It is a schematic diagram of the structure of the adapter frame of the present invention when it is cut apart.

[0019] Figure 4 The present invention Figure 3 Enlarged view of point A.

[0020] Figure 5 It is a schematic diagram of the structure of the quantitative frame of the present invention.

[0021] Figure 6 The present invention Figure 5 Enlarged view of point B.

[0022] Figure 7 It is a schematic diagram of the structure of the quantitative frame of the present invention.

[0023] Figure 8 It is a structural schematic diagram of the liquid level sensing component of the present invention.

[0024] Fig. 9It is a structural schematic diagram of the driving component of the present invention.

[0025] Fig.10 It is a structural schematic diagram of the reversing drive mechanism of the present invention.

[0026] In the figure: 1-mobile base, 2-medicine storage box, 3-discharge joint, 4-quantitative frame, 5-control valve, 6-adapter frame, 7-connecting member, 8-quantitative outlet member, 9-injection pipe, 10-pin fixing frame, 11-driving member, 701-installation shell, 702-matching guide rail, 703-card-in guide block, 801-movable baffle, 802-control cylinder, 803-interceptor plate, 804-electric push rod, 805-liquid level sensing component, 806-pressurized ejection component, 1101-driving screw, 1102-external shell, 1103-reversing drive mechanism, 8051-sliding float, 8052-contact sensing mechanism, 8061-pressurization pump, 8062-high pressure tank, 8063-pressure sensor, 8064-connecting valve. DETAILED DESCRIPTION

[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0028] In the description of the present invention, it should be understood that “plurality” means two or more than two, unless otherwise clearly and specifically defined.

[0029] See also Figures 1 to 10The present invention provides an injection fertilization and drug application device and system for preventing and controlling root diseases and insect pests of fruit trees: comprising a mobile base 1, a drug storage box 2 and an injection assembly, wherein the injection assembly comprises a discharge joint 3, a quantitative frame 4, a control valve 5, an adapter frame 6, a connecting member 7 and a quantitative outlet member 8, wherein the connecting member 7 comprises a mounting shell 701, a matching guide rail 702 and a snap-in guide block 703, wherein the quantitative outlet member 8 comprises a moving baffle 801, a control cylinder 802, an intercepting plate 803, an electric push rod 804, a liquid level sensing component 805 and a pressurized push-out component 806, wherein the liquid level sensing component 805 comprises a sliding floating plate 8051 and a contact sensing mechanism 8052 ... movable baffle 801, a control cylinder 802, an intercepting plate 803, an electric push rod 804, a liquid level sensing component 805 and a pressurized push-out component 806, wherein the liquid level sensing component 805 comprises a sliding floating plate 8051 and a contact sensing mechanism 8052, wherein the liquid level sensing component 805 comprises a sliding floating plate 8051 and a contact sensing mechanism 8052, wherein the liquid level sensing component 805 comprises a movable baffle 801, a control cylinder 802, an intercepting plate 803, an electric push rod 804, a liquid level sensing component 805 and a pressurized push-out component 8 The pressurized ejection component 806 includes a pressurized pump 8061, a high-pressure tank 8062, a pressure sensor 8063 and a connecting valve 8064. The above-mentioned solution solves the problem that in actual use, the existing injection fertilization and pesticide application devices for the prevention and control of root diseases and insect pests of fruit trees are mostly moved in sequence by operators to the vicinity of the fruit trees that need to be injected, and then the corresponding injection structure is set, and finally the fruit trees are injected with corresponding doses of drugs according to the actual growth conditions. In this way, when more fruit trees need to be injected, the entire device is pushed to perform coordinated injections in sequence, which will result in a longer injection fertilization time and lower efficiency during injection fertilization.

[0030] Furthermore, the medicine storage box 2 is arranged on the mobile base 1, and multiple discharge joints 3 are installed at the bottom of the medicine storage box 2. The quantitative rack 4 is connected to the mobile base 1 through the connecting member 7, and the control valve 5 is installed at the bottom of the quantitative rack 4. The adapter rack 6 is connected to the discharge joint 3 and is installed on the quantitative rack 4. The connecting member 7 is connected to the mobile base 1 for installing the quantitative rack 4. The quantitative derivation member 8 is connected to the quantitative rack 4 for completing the quantitative derivation of the medicine inside the quantitative rack 4.

[0031] Specifically, the mobile base 1 drives the entire device to move by means of a corresponding wheel set, the mobile base 1 is provided with the medicine storage box 2, the medicine storage box 2 is used to store the medicine liquid to be injected, a plurality of discharge joints 3 are evenly distributed around the bottom end of the medicine storage box 2, the discharge joint 3 is connected to the adapter frame 6 provided on the quantitative frame 4 through a quick-connect conduit, so that when the discharge joint 3 is opened, the medicine liquid inside the medicine storage box 2 can enter the adapter frame 6 through the quick-connect conduit, and then the medicine liquid is introduced into the quantitative frame 4 through the adapter frame 6, the control valve 5 is provided at the bottom of the quantitative frame 4, the control valve 5 is a solenoid valve, and can be opened and closed by receiving instructions, so as to guide the medicine liquid inside the quantitative frame 4 out;

[0032] In actual work, the installation of the corresponding quantitative rack 4 is first completed through the provided connecting component 7. When installing the quantitative rack 4, the user can select the installed quantitative rack 4 and the number of corresponding mechanisms according to actual conditions, so as to facilitate fertilization and injection of multiple fruit trees. Then, the discharge joint 3 connected to the adapter rack 6 is opened, so that the medicine liquid inside the medicine storage box 2 can flow into the correspondingly connected adapter rack 6. After that, after the specified dose of the medicine is introduced into the quantitative rack 4 through the provided quantitative outlet component 8, the specified dose of the medicine can be injected, thereby completing the entire injection fertilization and medication.

[0033] Furthermore, the mounting shell 701 is sleeved on the quantitative rack 4 ; the matching guide rail 702 is fixedly mounted on the mobile base 1 ; the snap-in guide block 703 is fixedly mounted on the mounting shell 701 and matched with the matching guide rail 702 .

[0034] When this embodiment is in use, the quantitative rack 4 and the components installed on the quantitative rack 4 are shielded and protected by the installation shell 701. The back side of the installation shell 701 is provided with the snap-in guide block 703, and the snap-in guide block 703 is in a "7" shape. The retaining groove provided on the snap-in guide block 703 is adapted to the guide groove of the matching guide rail 702, so that the user can quickly install the quantitative rack 4 and the corresponding installation shell 701 through the cooperation of the snap-in guide block 703 and the matching guide rail 702.

[0035] Furthermore, the movable baffle 801 is slidably installed on the quantitative rack 4; the output end of the control cylinder 802 is connected to the movable baffle 801, and the control cylinder 802 is installed on the quantitative rack 4; the interception plate 803 is slidably installed on the adapter rack 6; the output end of the electric push rod 804 is connected to the interception plate 803 and installed on the adapter rack 6; the liquid level sensing component 805 is connected to the movable baffle 801, and is used to sense the liquid level of the liquid loaded inside the quantitative rack 4; the pressurized ejection component 806 is connected to the quantitative rack 4, and is used to discharge the liquid introduced into the quantitative rack 4.

[0036] Furthermore, the sliding float 8051 is slidably installed at the bottom of the movable baffle 801; the contact sensing mechanism 8052 is electrically connected to the electric push rod 804, and is electrically connected to the control valve 5, and is connected to the sliding float 8051, for sensing the floating height of the sliding float 8051 and controlling the corresponding element according to the sensing result.

[0037] Furthermore, the pressure pump 8061 is installed on one side of the quantitative rack 4; the high-pressure tank 8062 is connected to the pressure pump 8061 and installed on one side of the quantitative rack 4; the pressure sensor 8063 is installed on the high-pressure tank 8062; the connecting valve 8064 is electrically connected to the contact sensing mechanism 8052, and is connected to the movable baffle 801, and is installed on the top of the high-pressure tank 8062.

[0038] When the present embodiment is in use, the top of the quantitative rack 4 is open, and the storage groove provided inside the quantitative rack 4 matches the size of the movable baffle 801. In order to prevent the movable baffle 801 from interfering with the operation of the movable baffle 801 when introducing the medicine solution, the bottom of the adapter rack 6 is provided with an outlet located at the bottom of the quantitative rack 4. The movable baffle 801 is also provided with a slide groove for cooperating with the outlet channel of the rotating rack. The movable baffle 801 is fixed to the output end of the control cylinder 802. The user can adjust the position of the movable baffle 801 through the control cylinder 802, thereby changing the medicine storage amount of the quantitative rack 4. The adapter rack 6 is provided with the intercepting plate 803 and the corresponding electric push rod 804. The output end of the electric push rod 804 is fixed to the intercepting plate 803. The intercepting plate 803 is driven to slide by the electric push rod 804 to realize the control of the medicine introduction of the adapter rack 6.

[0039] The movable baffle 801 is connected to the connecting valve 8064 on the top of the high-pressure tank 8062 through a corresponding air duct. The air duct arranged on the movable baffle 801 can connect the connecting valve 8064 with the liquid storage area of ​​the quantitative rack 4. The connecting valve 8064 is an electromagnetic valve. The connecting valve 8064 can open or close the top of the high-pressure tank 8062 by receiving a corresponding instruction. The bottom of the high-pressure tank 8062 is connected to the pressurization port of the pressurizing valve through a corresponding air duct. The high-pressure tank 8062 is provided with the pressure sensor 8063. The pressure sensor 8063, the connecting valve 8064 and the pressurizing pump 8061 are controlled by a corresponding joint control system. The air pressure inside the high-pressure tank 8062 can be monitored by the arranged pressure sensor 8063. Under normal circumstances, the connecting valve 8064 is in a closed state. At the same time, the air pressure inside the high-pressure tank 8062 will be higher than the normal atmospheric pressure. When the connecting valve 8064 is closed, the air pressure inside the high-pressure tank 8062 will be higher than the normal atmospheric pressure. When 8064 receives the control instruction transmitted by the contact sensing mechanism 8052 and is in an open state, the high-pressure gas inside the high-pressure tank 8062 will enter the area of ​​the quantitative rack 4 for storing the liquid medicine through the connecting valve 8064 and the corresponding air guide tube, so that the liquid medicine inside the quantitative rack 4 can be squeezed out, so as to complete the injection of the liquid medicine inside the quantitative rack 4. After the injection is completed, the operator can reclose the connecting valve 8064 by issuing a corresponding control instruction. At this time, the control instruction issued will also activate the joint control system of the pressure sensor 8063, the connecting valve 8064 and the pressure pump 8061. When the connecting valve 8064 is in a closed state and the pressure sensor 8063 senses that the internal air pressure of the high-pressure tank 8062 is lower than the preset range, the pressure pump 8061 will start to work, thereby increasing the internal air pressure of the high-pressure tank 8062 to the preset high-pressure value range, so as to facilitate the subsequent injection of liquid medicine again;

[0040] A guide groove for the sliding float 8051 to slide is provided at the bottom of the movable baffle 801, and the contact plate of the contact sensing mechanism 8052 is fixedly installed on the back of the sliding float 8051, and the sensing plate of the contact sensing mechanism 8052 is fixedly installed on the inner wall of the guide groove of the movable baffle 801. When the sliding float 8051 moves upward due to the buoyancy generated by the introduction of the medicine, the contact plate set on the top of the sliding float 8051 will contact the sensing plate, and then the contact sensing mechanism 8052 can control the electric push rod 804 to drive the intercepting plate 803 to block the adapter, so that the medicine will no longer continue to be introduced into the quantitative rack 4, and at the same time, control instructions are sent in sequence to control the control valve 5 and the connecting valve 8064, so that the connecting valve 8064 and the control valve 5 are opened, and then the corresponding mechanism is cooperated to complete the injection and extraction of the specified dose of medicine inside the quantitative rack 4.

[0041] Preferably, the injection assembly provided by the present invention further includes an injection tube 9 , a nail fixing frame 10 and a driving component 11 , and the driving component 11 includes a driving screw 1101 , an external shell 1102 and a reversing driving mechanism 1103 .

[0042] Furthermore, the injection pipe 9 is connected to the control valve 5; the nail fixing frame 10 is connected to the injection pipe 9; the driving member 11 is connected to the injection pipe 9, and is used to drive the injection pipe 9 to be inserted into the root area of ​​the fruit tree.

[0043] Furthermore, the driving screw 1101 is threadedly connected to the injection tube 9; the external shell 1102 is fixedly installed on one side of the nail fixing frame 10; the reversing drive mechanism 1103 is connected to the driving screw 1101 and installed on the external shell 1102 for driving the driving screw 1101.

[0044] When the present embodiment is in use, the injection pipe 9 is connected to the outlet of the control valve 5 through the corresponding liquid pipe, and the injection pipe 9 slides on the nail fixing frame 10 through the connection plate arranged at the top, and a plurality of ground nails for fixing are arranged at the bottom of the nail fixing frame 10, so that the user can quickly insert the nail fixing frame 10 into the soil in the area where the roots of the fruit trees are buried, and the side of the top connection plate of the injection pipe 9 is also provided with a threaded hole for cooperating with the driving screw 1101, and the driving screw 1101 is driven by the reversing drive mechanism 1103 arranged, and the reversing drive mechanism 1103 is mainly composed of corresponding bevel gears. The wheel group and the gear tooth chain group are used for transmission, so as to change the driving direction of the driving screw 1101 by the operator, making it more convenient for the operator to operate. At the same time, the structure for transmission by the reversing drive mechanism 1103 is shielded and protected by the external shell 1102. A corresponding holding handle frame is also provided on the outside of the external shell 1102. The holding handle frame can facilitate the user to hold the nail fixing frame 10 and the entire injection mechanism thereof. At the same time, the entire injection mechanism can be placed on the side of the installation shell 701 by the holding handle frame and the gantry provided on the side of the installation shell 701, making it more convenient to store.

[0045] In the actual working process, the user needs to insert multiple injection mechanisms composed of the pin fixing frame 10 and its corresponding structure into the corresponding fruit tree root injection area according to the actual injection situation, and then insert the injection tube 9 by operating the reversing drive mechanism 1103. When all the corresponding injection mechanisms have completed the insertion of the injection tube 9, the corresponding dose of liquid medicine can be injected through the above-mentioned liquid medicine injection structure, and the injected liquid medicine dose can be better matched with the corresponding fruit tree. The user can also number the outside of multiple installation shells 701, and then determine the corresponding drug injection dose by adjusting the position of the movable baffle 801 according to the corresponding numbered fruit tree, so that the subsequent liquid medicine injection is more convenient and quick. After the corresponding injection tube 9 is inserted, the user only needs to open the corresponding discharge joint 3, and no other operations are required. The quantitative drug can be automatically injected directly through the above-mentioned mechanism.

[0046] The invention discloses an injection fertilization and pesticide application system for preventing and controlling root diseases and insect pests of fruit trees, comprising the injection fertilization and pesticide application device for preventing and controlling root diseases and insect pests of fruit trees. The dosage of the medicine solution to be injected can be set in advance through the provided components, and then multiple injections can be performed simultaneously, which greatly reduces the working time of operators for injecting medicine into the roots of fruit trees and improves the efficiency of injection fertilization.

[0047] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. An injection fertilization and drug application device for preventing and controlling root diseases and insect pests of fruit trees, comprising a mobile base and a drug storage box, wherein the drug storage box is arranged on the mobile base, and is characterized in that: Also included is an injection assembly; The injection assembly includes a discharge joint, a quantitative frame, a control valve, an adapter frame, a connecting member and a quantitative outlet member; A plurality of discharge joints are installed at the bottom of the medicine storage box, the quantitative rack is connected to the mobile base via the connecting member, the control valve is installed at the bottom of the quantitative rack, the adapter rack is connected to the discharge joint and is installed on the quantitative rack, the connecting member is connected to the mobile base for installing the quantitative rack, and the quantitative derivation member is connected to the quantitative rack for completing the quantitative derivation of the medicine inside the quantitative rack.

2. The injection fertilization and pesticide application device for preventing and controlling root diseases and insect pests of fruit trees according to claim 1, characterized in that: The connecting component includes a mounting shell, a matching guide rail and a snap-in guide block, wherein the mounting shell is sleeved on the quantitative rack; the matching guide rail is fixedly mounted on the movable base; the snap-in guide block is fixedly mounted on the mounting shell and matches with the matching guide rail.

3. The injection fertilization and pesticide application device for preventing and controlling root diseases and insect pests of fruit trees according to claim 1, characterized in that: The quantitative export component includes a movable baffle, a control cylinder, an interception plate, an electric push rod, a liquid level sensing component and a pressurized ejection component. The movable baffle is slidably installed on the quantitative rack; the output end of the control cylinder is connected to the movable baffle, and the control cylinder is installed on the quantitative rack; the interception plate is slidably installed on the adapter rack; the output end of the electric push rod is connected to the interception plate and installed on the adapter rack; the liquid level sensing component is connected to the movable baffle for sensing the liquid level of the liquid loaded inside the quantitative rack; the pressurized ejection component is connected to the quantitative rack for exporting the liquid introduced into the quantitative rack.

4. The injection fertilization and pesticide application device for preventing and controlling root diseases and insect pests of fruit trees as claimed in claim 3, characterized in that: The liquid level sensing component includes a sliding float and a contact sensing mechanism, wherein the sliding float is slidably mounted on the bottom of the movable baffle; the contact sensing mechanism is electrically connected to the electric push rod, and to the control valve, and is connected to the sliding float, and is used to sense the floating height of the sliding float and control the corresponding element according to the sensing result.

5. The injection fertilization and pesticide application device for preventing and controlling root diseases and insect pests of fruit trees as claimed in claim 4, characterized in that: The pressurized ejection component includes a pressurized pump, a high-pressure tank, a pressure sensor and a connecting valve. The pressurized pump is installed on one side of the quantitative rack; the high-pressure tank is connected to the pressurized pump and installed on one side of the quantitative rack; the pressure sensor is installed on the high-pressure tank; the connecting valve is electrically connected to the contact sensing mechanism, connected to the movable baffle, and installed on the top of the high-pressure tank.

6. The injection fertilization and pesticide application device for controlling root diseases and insect pests of fruit trees according to claim 4, characterized in that: The injection assembly also includes an injection pipe, a nail fixing frame and a driving component. The injection pipe is connected to the control valve; the nail fixing frame is connected to the injection pipe; the driving component is connected to the injection pipe and is used to drive the injection pipe to be inserted into the root area of ​​the fruit tree.

7. The injection fertilization and pesticide application device for preventing and controlling root diseases and insect pests of fruit trees as claimed in claim 5, characterized in that: The driving component includes a driving screw, an external shell and a reversing driving mechanism, the driving screw is threadedly connected to the injection tube; the external shell is fixedly installed on one side of the nail fixing frame; the reversing driving mechanism is connected to the driving screw and installed on the external shell for driving the driving screw.

8. An injection fertilization and pesticide application system for preventing and controlling root diseases and insect pests of fruit trees, characterized in that: It comprises the injection fertilization and pesticide application device for preventing and controlling root diseases and insect pests of fruit trees as described in claim 1.

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