A spraying device for forestry protection

Abstract

The present invention discloses a spraying device for forestry protection, comprising a frame, a medicine box and two connecting hoses. The medicine box is fixedly installed on the bottom of the frame, and the output end of the medicine box is fixedly connected to two connecting hoses. Two fixed cylinders are fixedly installed on the frame, and the bottom end of each fixed cylinder is fixedly connected to a fixed pipe. When blockage occurs, cylinders and other components can be used to achieve pressurized clearing to ensure the normal operation of the nozzle. If the nozzle still cannot work normally after clearing the blockage, the servo motor is started to rotate the adjustment box, thereby activating the spare nozzle to continue to complete the work. The operation is simple, and the nozzle can be effectively monitored and subsequent processing work can be carried out, avoiding the overall back and forth operation, which can effectively save time and improve work efficiency. At the same time, it can also indirectly reduce the consumption of the drone and reduce power loss to a certain extent.

Description

Technical Field

[0001] The present invention relates to the field of forestry protection, and in particular to a spraying device for forestry protection. Background Art

[0002] Forestry refers to the production sector that protects the ecological environment and maintains ecological balance, cultivates and protects forests to obtain timber and other forest products, and utilizes the natural characteristics of forests to play a protective role. It is an important part of the national economy. Diseases and insect pests often occur in forests. Among them, the pine caterpillar belongs to the family of Lepidoptera. It is a common pest that harms pine species such as Masson pine, Ellipse pine, and Torch pine. It causes serious damage to the ecological environment and is usually eliminated by spraying pesticides chemically.

[0003] In the process of forestry protection spraying, due to the high growth of trees, the traditional backpack spray device has been abandoned, and the drone spraying method has been further adopted. The spraying efficiency is high and the penetration is strong, which can better and more effectively complete the tree protection work.

[0004] Drone spraying is roughly divided into the following components: drone body, medicine box, connecting hose and centrifugal atomizing nozzle. Among them, the centrifugal atomizing nozzle can atomize the liquid medicine very well and make the liquid medicine have sufficient penetration. Therefore, it is commonly installed on drones for spraying medicine.

[0005] However, according to actual usage, during the spraying process, drones are at high altitudes and are greatly affected by the environment. During the spraying process, the drug solution in the medicine box contains a small amount of impurities. After long-term use, the slots responsible for atomization in the centrifugal atomizing nozzle are easily blocked. The existing equipment cannot monitor whether there is blockage in the operation of the nozzle in real time, and there is a lack of a mechanism to deal with blocked nozzles, which affects the overall spraying effect and work efficiency.

[0006] Therefore, there is a need for a spraying device that can detect the operating status of the nozzle and effectively handle clogged nozzles. Summary of the Invention

[0007] In order to solve the above problems, the present invention provides a forestry protection spraying device.

[0008] The present invention is achieved through the following technical solutions:

[0009] A spraying device for forestry protection comprises a frame, a medicine box and two connecting hoses. The medicine box is fixedly installed on the bottom of the frame, and the output end of the medicine box is fixedly connected to two connecting hoses. Two fixed cylinders are fixedly installed on the frame, and the bottom end of each fixed cylinder is fixedly connected to a fixed pipe. One end of each fixed pipe is rotatably connected to an adjusting box. Two nozzles are fixedly installed in each adjusting box, and the two connecting hoses respectively extend into corresponding fixed cylinders. A fixing frame is fixedly installed on the bottom of each fixed cylinder, and a servo motor is fixedly installed on the side wall of each fixing frame. The output end of each servo motor is fixedly connected to a rotating shaft, and one end of each rotating shaft is fixedly connected to the outer wall of the corresponding adjusting box.

[0010] Preferably, a fixing ring is fixedly installed in the connecting hose, and a one-way valve is installed in the connecting hose. The one-way valve is arranged below the fixing ring and fits with the fixing ring.

[0011] Preferably, the top end of the fixed tube extends into the fixed cylinder, one end of the connecting hose is fixedly connected to and communicated with the side wall of the fixed tube, a piston cylinder is fixedly installed in the fixed cylinder, the bottom end of the piston cylinder is fixedly connected to and communicated with the top end of the fixed tube, a first piston is slidably connected in the fixed tube, a first limiting ring is fixedly installed in the fixed tube, the first piston is arranged above the first limiting ring, a second piston is slidably connected in the piston cylinder, and a piston rod is fixedly connected between the second piston and the first piston.

[0012] Preferably, a mounting cylinder is provided on one side of the piston cylinder, a cylinder is installed in the mounting cylinder, the output end of the cylinder is fixedly connected to a top plate, a first contact piece is fixedly installed on the side wall of the top plate, a first spring is provided in the mounting cylinder, a third piston is slidably connected in the mounting cylinder, the first spring is provided between the third piston and the top plate, a second contact piece is fixedly installed on the side wall of the third piston, the second contact piece is arranged opposite to the first contact piece, one end of the mounting cylinder is fixedly connected to a connecting tube, one end of the connecting tube is fixedly connected to and communicated with the side wall of the piston cylinder.

[0013] Preferably, the fixed tube is L-shaped, and two retaining rings are fixedly mounted on the fixed tube. The two retaining rings are respectively fitted with the inner wall and the outer wall of the regulating box, and the retaining rings are wrapped with a sealing layer.

[0014] Preferably, a monitoring cylinder is fixedly inserted into one side of the regulating box, a fourth piston is slidably connected to the monitoring cylinder, an electronic pressure gauge is installed on the monitoring cylinder, a second limiting ring is installed in the monitoring cylinder, and one side of the second limiting ring is fitted with the fourth piston.

[0015] Preferably, a trapezoidal block is fixedly installed on the fixed frame, a slot is provided on the trapezoidal block, two partitions are fixedly installed in the adjustment box, the monitoring tube is arranged between the two partitions, a spring tube is fixedly installed on the top of the fixed frame, a fourth spring is provided in the spring tube, a T-shaped sliding rod is slidably connected in the spring tube, the bottom end of the T-shaped sliding rod passes through the outside of the spring tube and is slidably connected to it, an L-shaped pull rod is fixedly connected to the outside of the spring tube, and an electromagnetic block is fixedly installed at the bottom end of the L-shaped pull rod.

[0016] Preferably, a through hole is fixedly provided on the partition, and two sliding rods with sliding connections are inserted into the side walls of the adjusting box, and a third spring is sleeved on each sliding rod, and a rotatable ball is installed at one end of each sliding rod, and the ball extends into the corresponding slot and is slidably connected thereto, and one end of the sliding rod extends into the adjusting box, and a pressure block is fixedly installed at one end of the sliding rod, and the pressure block is L-shaped, and two horizontal plates are fixedly installed on the inner wall of the adjusting box, and a T-shaped rod with sliding connections is inserted into the horizontal plate, and a second spring is sleeved on the T-shaped rod, and the top end of the T-shaped rod is fitted with the bottom end of the pressure block, and the bottom end of the pressure block is arc-shaped, and the bottom end of the T-shaped rod is fixedly connected to a blocking block, and the axis of the blocking block is coincident with the axis of the through hole.

[0017] Preferably, the top and bottom of the side walls of the regulating box are fixedly connected with positioning blocks, each positioning block is provided with a positioning hole, each positioning block is fixedly installed with a permanent magnet block, and the bottom end of the T-shaped sliding rod extends into the corresponding positioning hole and is slidably connected thereto.

[0018] Preferably, batteries are fixedly mounted on both sides of the regulating box.

[0019] Compared with the existing technology, the beneficial effect of the present invention is that when a blockage occurs, the cylinder and other components can be used to achieve pressurized clearing work to ensure the normal operation of the nozzle. If the nozzle still cannot work normally after clearing the blockage, the servo motor is started to rotate the adjustment box, thereby activating the spare nozzle to continue to complete the work. The operation is simple, and the nozzle can be effectively monitored and subsequent processing work can be carried out, avoiding the overall back and forth operation, which can effectively save time and improve work efficiency. At the same time, it can also indirectly reduce the consumption of the drone and reduce power loss to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a first perspective stereogram of the structure of the present invention;

[0021] Figure 2 The structure of the present invention Figure 1 A second perspective view of the middle fixed cylinder;

[0022] Figure 3 The structure of the present invention Figure 1 Second perspective of the middle adjustment box;

[0023] Figure 4 The structure of the present invention Figure 2 A partial enlarged schematic diagram;

[0024] Figure 5 The structure of the present invention Figure 2 A partial enlarged schematic diagram of B in the middle;

[0025] Figure 6 The structure of the present invention Figure 2 A partial enlarged schematic diagram of C in the middle.

[0026] In the figure: frame 1, medicine box 2, connecting hose 3, fixing ring 31, one-way valve 32, fixing cylinder 4, first limiting ring 41, first piston 42, piston cylinder 43, piston rod 44, second piston 45, mounting cylinder 46, cylinder 47, top plate 48, first contact piece 49, first spring 410, second contact piece 411, third piston 412, connecting pipe 413, fixing pipe 5, retaining ring 51, regulating box 6, partition 61, monitoring cylinder 62, fourth piston 63, electronic Pressure gauge 64, second limiting ring 65, through hole 66, blocking block 67, T-bar 68, second spring 69, pressure block 610, sliding rod 611, third spring 612, ball 613, positioning block 614, positioning hole 615, permanent magnet block 616, battery 617, nozzle 7, fixing bracket 8, servo motor 81, trapezoidal block 82, slot 83, spring tube 84, fourth spring 85, T-shaped sliding rod 86, L-shaped pull rod 87, electromagnetic block 88, rotating shaft 89. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0028] like Figures 1 to 6As shown, a forestry protection spraying equipment includes a frame 1, a medicine box 2 and two connecting hoses 3. The bottom of the frame 1 is fixedly installed with a medicine box 2, and the output end of the medicine box 2 is fixedly connected to two connecting hoses 3. Two fixed cylinders 4 are fixedly installed on the frame 1, and the bottom end of each fixed cylinder 4 is fixedly connected to a fixed pipe 5. One end of each fixed pipe 5 is rotatably connected to an adjusting box 6. Two nozzles 7 are fixedly installed in each adjusting box 6. The two connecting hoses 3 extend into the corresponding fixed cylinders 4 respectively. A fixing frame 8 is fixedly installed at the bottom of each fixed cylinder 4. A servo motor 81 is fixedly installed on the side wall of each fixing frame 8. The output end of each servo motor 81 is fixedly connected to a rotating shaft 89. One end of each rotating shaft 89 is fixedly connected to the outer wall of the corresponding adjusting box 6. When working, the water pump in the medicine box 2 starts to work and the medicine flows along the connecting hose 3. , transported to the fixed pipe 5, and then enters between the two partitions 61 in the regulating box 6, and is connected to the corresponding nozzle 7 along the through hole 66 below, so as to ensure the normal operation of the work. In this way, when blockage occurs, the fixed cylinder 4 is provided with a piston cylinder 43 and other components, which can accurately detect the internal pressure. When blockage occurs, the cylinder 47 and other components can be used to achieve pressurized clearing work to ensure the normal operation of the nozzle 7. If the nozzle 7 still cannot work normally after clearing the blockage, the servo motor 81 is started to rotate the regulating box 6, thereby activating the spare nozzle 7 to continue to complete the work. The operation is simple, can effectively monitor the nozzle 7 and subsequent processing work, avoid the overall back and forth operation, can effectively save time, improve work efficiency, and can also indirectly reduce the consumption of the drone and reduce power loss to a certain extent.

[0029] A fixing ring 31 is fixedly installed in the connecting hose 3, and a one-way valve 32 is installed in the connecting hose 3. The one-way valve 32 is arranged below the fixing ring 31 and is fitted with the fixing ring 31. The one-way valve 32 maintains the one-way flow of the medicine, and the fixing ring 31 serves to stabilize the one-way valve 32 to prevent it from displacement.

[0030] The top of the fixed tube 5 extends into the fixed cylinder 4, one end of the connecting hose 3 is fixedly connected to and communicated with the side wall of the fixed tube 5, and a piston cylinder 43 is fixedly installed in the fixed cylinder 4, and the bottom end of the piston cylinder 43 is fixedly connected to and communicated with the top of the fixed tube 5, and a first piston 42 is slidably connected in the fixed tube 5, and a first limiting ring 41 is fixedly installed in the fixed tube 5. The first piston 42 is arranged above the first limiting ring 41, and a second piston 45 is slidably connected in the piston cylinder 43. A piston rod 44 is fixedly connected between the second piston 45 and the first piston 42. When blockage occurs, since the pressure of the circulating pump in the medicine box 2 remains unchanged and the water output becomes smaller, the pressure is transmitted to the first piston 42, prompting the first piston 42 to move, and the first piston 42 drives the second piston 45 to compress the hydraulic oil in the piston cylinder 43. The stability of the hydraulic oil is utilized to prompt the hydraulic oil to flow to the mounting cylinder 46, thereby ensuring the normal progress of the monitoring work.

[0031] A mounting cylinder 46 is provided on one side of the piston cylinder 43, and a cylinder 47 is installed in the mounting cylinder 46. The output end of the cylinder 47 is fixedly connected to a top plate 48, and a first contact piece 49 is fixedly installed on the side wall of the top plate 48. A first spring 410 is provided in the mounting cylinder 46, and a third piston 412 is slidably connected in the mounting cylinder 46. The first spring 410 is arranged between the third piston 412 and the top plate 48. A second contact piece 411 is fixedly installed on the side wall of the third piston 412, and the second contact piece 411 is arranged opposite to the first contact piece 49. One end of the mounting cylinder 46 is fixedly connected to a connecting pipe 413, and one end of the connecting pipe 413 is fixedly connected to the side wall of the piston cylinder 43 and Similarly, when a blockage occurs, when the hydraulic oil flows into the mounting cylinder 46, the third piston 412 drives the second contact piece 411 close to the top plate 48. When the pressure reaches a certain value, it will be higher than the elastic force of the first spring 410, causing the second contact piece 411 to contact the first contact piece 49, thereby issuing an early warning. After the operator's remote control issues an early warning, he can start the pressure clearing switch, that is, start the cylinder 47. After the cylinder 47 extends, it drives the top plate 48 to move, thereby applying a stable and stronger pressure under the original pressure, which is transmitted between the two partitions 61, thereby increasing the pressure at the nozzle 7 and achieving the work of clearing the blockage.

[0032] The fixing tube 5 is L-shaped, and two retaining rings 51 are fixedly mounted on the fixing tube 5 . The two retaining rings 51 are respectively fitted with the inner wall and the outer wall of the regulating box 6 . The retaining rings 51 are wrapped with a sealing layer.

[0033] A monitoring cylinder 62 is fixedly inserted into one side of the regulating box 6, and a fourth piston 63 is slidably connected to the monitoring cylinder 62. An electronic pressure gauge 64 is installed on the monitoring cylinder 62, and a second limiting ring 65 is installed in the monitoring cylinder 62. One side of the second limiting ring 65 is fitted with the fourth piston 63. During the pressure clearing process, the operator observes the pressure parameters on the remote control. If the blockage is discharged under continuous pressure, the fourth piston 63 will move significantly, that is, the compressed air expands, causing the fourth piston 63 to be displaced, and the reading on the electronic pressure gauge 64 will decrease significantly, which means that the blockage has been discharged and can continue to be used. If there is no obvious change in the reading, it means that the blockage has not been removed, and the nozzle 7 is switched to make the intact nozzle 7 above work to ensure the spraying amount of the medicine and work efficiency.

[0034] A trapezoidal block 82 is fixedly installed on the fixing frame 8, and a slot 83 is provided on the trapezoidal block 82. Two partitions 61 are fixedly installed in the regulating box 6, and the monitoring tube 62 is arranged between the two partitions 61. A spring tube 84 is fixedly installed on the top of the fixing frame 8, and a fourth spring 85 is provided in the spring tube 84. A T-shaped sliding rod 86 is slidably connected in the spring tube 84, and the bottom end of the T-shaped sliding rod 86 passes through the outside of the spring tube 84 and is slidably connected to it. An L-shaped pull rod 87 is fixedly connected to the outside of the spring tube 84, and an electromagnetic block 88 is fixedly installed on the bottom end of the L-shaped pull rod 87. The trapezoidal block 82 plays a limiting role to ensure that the upper nozzle 7 is in the closed state. The area between the two partitions 61 is the circulation area of ​​the medicine, which ensures that the two nozzles 7 are separated and the pressure supply to the nozzle 7 below is normal. The fourth spring 85 in the spring tube 84 ensures that the T-shaped sliding rod 86 has sufficient rebound force to ensure the normal operation of the positioning work, and the L-shaped pull rod 87 keeps the electromagnetic block 88 fixed.

[0035] The first end of the second stop 61 is fixedly provided with a through hole 66 on the partition 61, and two sliding rods 611 connected in a sliding manner are inserted into the side wall of the adjustment box 6, each sliding rod 611 is sleeved with a third spring 612, and one end of each sliding rod 611 is installed with a rotatable ball 613, which extends into the corresponding slot 83 and is slidably connected therewith. One end of the sliding rod 611 extends into the adjustment box 6, and one end of the sliding rod 611 is fixedly installed with a pressure block 610, which is L-shaped. Two cross plates are fixedly installed on the inner wall of the adjustment box 6, and a T-shaped rod 68 is inserted into the cross plate for sliding connection. A second spring 69 is sleeved on the T-shaped rod 68. The top end of the T-shaped rod 68 is fitted with the bottom end of the pressure block 610, and the bottom end of the pressure block 610 is arc-shaped. The bottom end of the T-shaped rod 68 is fixedly connected with a blocking block 67, and the axis of the blocking block 67 coincides with the axis of the through hole 66. When working normally, the sliding rod 61 located below Due to the lack of the limit of the slot 83, the elastic force of the third spring 612 is released, so that the pressure block 610 no longer presses the T-bar 68, so that the elastic force of the second spring 69 on the T-bar 68 is also released, so that the T-bar 68 moves upward, so that the blocking block 67 no longer blocks the through hole 66, ensuring that the liquid medicine can enter the interior. After the liquid medicine enters the interior, a water inlet pipe is provided on one side of the nozzle 7, so that water enters the nozzle 7 through the water inlet pipe, so that the nozzle 7 can work normally. When the nozzle 7 is rotated to the upper side, due to the provision of the trapezoidal block 82, after rotating 180 degrees, the sliding rod 611 will slowly contact the trapezoidal block 82 during the movement and enter the slot 83. In this way, when there is a limit of the slot 83, the blocking block 67 will re-block the through hole 66, so that the liquid medicine cannot pass through, thereby ensuring that the upper nozzle 7 is in a closed state, thereby ensuring normal operation.

[0036] The top and bottom of the side walls of the regulating box 6 are fixedly connected with positioning blocks 614, and each positioning block 614 is provided with a positioning hole 615. A permanent magnet block 616 is fixedly installed on each positioning block 614. The bottom end of the T-shaped sliding rod 86 extends into the corresponding positioning hole 615 and is slidably connected thereto. When the regulating box 6 rotates, that is, when the clogged nozzle 7 is located at the top, in order to ensure that the overall operation can be stable, during the rotation process, the bottom end of the T-shaped sliding rod 86 will first contact the positioning block 614, thereby causing the fourth spring 85 to be compressed. When the bottom end of the T-shaped sliding rod 86 moves to the positioning hole 615, it can be smoothly inserted under the release of the elastic force of the fourth spring 85. At this time, the operator can start the electromagnetic block 88 to generate electromagnetic force, thereby adsorbing the permanent magnet block 616, thus ensuring the stable operation of the overall operation.

[0037] Batteries 617 are fixedly installed on both sides of the regulating box 6. The batteries 617 provide electricity to ensure that the entire work can operate normally.

[0038] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A forestry protection spraying device, comprising a frame (1), a medicine box (2) and two connecting hoses (3), wherein the bottom of the frame (1) is fixedly mounted with the medicine box (2), and the output end of the medicine box (2) is fixedly connected to the two connecting hoses (3), characterized in that: Two fixed cylinders (4) are fixedly mounted on the frame (1), the bottom end of each fixed cylinder (4) is fixedly connected to a fixed pipe (5), one end of each fixed pipe (5) is rotatably connected to an adjustment box (6), two nozzles (7) are fixedly mounted in each adjustment box (6), two connecting hoses (3) are respectively extended into the corresponding fixed cylinder (4), a fixed frame (8) is fixedly mounted on the bottom of each fixed cylinder (4), a servo motor (8-1) is fixedly mounted on the side wall of each fixed frame (8), the output end of each servo motor (8-1) is fixedly connected to a rotating shaft (8-9), one end of each rotating shaft (8-9) is fixedly connected to the outer wall of the corresponding adjustment box (6), the fixed frame (8 ) is fixedly installed with a trapezoidal block (8-2), a slot (8-3) is provided on the trapezoidal block (8-2), two partitions (6-1) are fixedly installed in the regulating box (6), the monitoring tube (6-2) is set between the two partitions (6-1), a spring tube (8-4) is fixedly installed on the top of the fixing frame (8), a fourth spring (8-5) is provided in the spring tube (8-4), a T-shaped sliding rod (8-6) is slidably connected in the spring tube (8-4), the bottom end of the T-shaped sliding rod (8-6) passes through the outside of the spring tube (8-4) and is slidably connected thereto, an L-shaped pull rod (8-7) is fixedly connected to the outside of the spring tube (8-4), an electromagnetic block (8-8) is fixedly installed at the bottom end of the L-shaped pull rod (8-7), the partition (6 -1) is fixedly provided with a through hole (6-6), two sliding rods (6-11) are inserted into the side wall of the regulating box (6), each sliding rod (6-11) is sleeved with a third spring (6-12), one end of each sliding rod (6-11) is installed with a rotatable ball (6-13), the ball (6-13) extends into the corresponding slot (8-3) and is slidably connected thereto, one end of the sliding rod (6-11) extends into the regulating box (6), one end of the sliding rod (6-11) is fixedly installed with a pressure block (6-10), the pressure block (6-10) is L-shaped, two horizontal plates are fixedly installed on the inner wall of the regulating box (6), a T-shaped rod (6-8) is inserted into the horizontal plate, the T A second spring (6-9) is sleeved on the T-shaped rod (6-8), the top end of the T-shaped rod (6-8) is fitted with the bottom end of the pressure block (6-10), the bottom end of the pressure block (6-10) is in an arc shape, the bottom end of the T-shaped rod (6-8) is fixedly connected to a blocking block (6-7), the axis of the blocking block (6-7) is arranged to coincide with the axis of the through hole (6-6), the top and bottom of the side wall of the regulating box (6) are fixedly connected to positioning blocks (6-14), each positioning block (6-14) is provided with a positioning hole (6-15), and each positioning block (6-14) is fixedly mounted with a permanent magnet (6-16), and the bottom end of the T-shaped sliding rod (8-6) extends into the corresponding positioning hole (6-15) and is slidably connected thereto.

2. The forestry protection spraying equipment according to claim 1, characterized in that: A fixing ring (3-1) is fixedly installed in the connecting hose (3), a one-way valve (3-2) is installed in the connecting hose (3), and the one-way valve (3-2) is arranged below the fixing ring (3-1) and is arranged in close contact with the fixing ring (3-1).

3. The forestry protection spraying equipment according to claim 1, characterized in that: The top end of the fixed tube (5) extends into the fixed cylinder (4), and one end of the connecting hose (3) is fixedly connected to and communicated with the side wall of the fixed tube (5). A piston cylinder (4-3) is fixedly installed in the fixed cylinder (4), and the bottom end of the piston cylinder (4-3) is fixedly connected to and communicated with the top end of the fixed tube (5). A first piston (4-2) is slidably connected in the fixed tube (5), and a first limiting ring (4-1) is fixedly installed in the fixed tube (5). The first piston (4-2) is arranged above the first limiting ring (4-1). A second piston (4-5) is slidably connected in the piston cylinder (4-3), and a piston rod (4-4) is fixedly connected between the second piston (4-5) and the first piston (4-2).

4. The forestry protection spraying equipment according to claim 3, characterized in that: A mounting cylinder (4-6) is provided on one side of the piston cylinder (4-3), a cylinder (4-7) is installed in the mounting cylinder (4-6), an output end of the cylinder (4-7) is fixedly connected to a top plate (4-8), a first contact piece (4-9) is fixedly installed on the side wall of the top plate (4-8), a first spring (4-10) is provided in the mounting cylinder (4-6), a third piston (4-12) is slidably connected in the mounting cylinder (4-6), the first spring (4-10) is arranged between the third piston (4-12) and the top plate (4-8), a second contact piece (4-11) is fixedly installed on the side wall of the third piston (4-12), the second contact piece (4-11) is arranged opposite to the first contact piece (4-9), one end of the mounting cylinder (4-6) is fixedly connected to a connecting pipe (4-13), and one end of the connecting pipe (4-13) is fixedly connected to and communicates with the side wall of the piston cylinder (4-3).

5. The forestry protection spraying equipment according to claim 1, characterized in that: The fixed tube (5) is L-shaped, and two retaining rings (5-1) are fixedly mounted on the fixed tube (5). The two retaining rings (5-1) are respectively arranged to fit the inner wall and the outer wall of the regulating box (6), and the retaining rings (5-1) are wrapped with a sealing layer.

6. The forestry protection spraying equipment according to claim 1, characterized in that: A monitoring cylinder (6-2) is fixedly inserted into one side of the regulating box (6), a fourth piston (6-3) is slidably connected in the monitoring cylinder (6-2), an electronic pressure gauge (6-4) is installed on the monitoring cylinder (6-2), a second limiting ring (6-5) is installed in the monitoring cylinder (6-2), and one side of the second limiting ring (6-5) is arranged to fit the fourth piston (6-3).

7. The forestry protection spraying equipment according to claim 1, characterized in that: Storage batteries (6-17) are fixedly mounted on both sides of the regulating box (6).

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