Forestry insect pest prevention spraying device

Abstract

The invention discloses a forestry insect pest prevention spraying device, and relates to the technical field of forestry insect pest prevention spraying.The forestry insect pest prevention spraying device comprises a containing box, rollers are arranged at the bottom of the containing box, a motor is fixedly installed on the side face of the containing box, and a water suction pump is fixedly installed on the upper portion of the containing box; a water inlet is formed in the top of the containing box, a pesticide inlet is formed in the top of the containing box, a filtering device used for filtering pesticide is arranged in the containing box and comprises a rotating shaft, the rotating shaft is fixedly installed at the output end of a motor, and insect prevention pesticide and water can be filtered through a filtering plate; therefore, impurities in the water can be effectively removed, the impurities are prevented from reacting with the medicament or affecting dissolution and uniform mixing of the medicament, and the medicament and the water can be ensured to be uniformly mixed in the stirring process.

Description

Technical Field

[0001] The invention relates to the technical field of forestry pest control spraying, in particular to a forestry pest control spraying device. Background Art

[0002] The forestry pest control spray device is a device used to control pests in forests, woodlands and other areas. It effectively controls the reproduction of pests by spraying various pest control agents (such as insecticides, fungicides or organic pesticides, etc.), reduces the damage of pests to trees, and thus protects the health and productivity of forest ecosystems.

[0003] The patent with patent announcement number CN220326617U relates to a forestry pest control spray device, including a box body, a shielding mechanism is provided on one side of the box body, the shielding mechanism includes a baffle, a connecting mechanism is provided on the middle surface of the box body, and a medicine storage box is provided inside the box body. A side panel is fixedly provided on the side of the box body away from the baffle, and a spraying mechanism is provided on the side panel. A movable wheel is provided at the bottom of the box body. By setting a shielding mechanism, the medicine will be blocked by the baffle during the spraying process on the trees to prevent splashing and causing harm to the staff. In addition, through the setting of meshing gears and tooth plates, the two vertical pipes will also move with the tooth plates when they move up and down. Through the nozzles arranged on the vertical pipes, the medicine in the medicine storage box can be evenly and thoroughly sprayed on the trees, greatly increasing the utilization rate of the medicine.

[0004] In the above patent, the medicine will be blocked by a baffle during the spraying process on the trees to prevent it from splashing and causing harm to the workers. However, during the spraying process, the medicine and water are not mixed, stirred and filtered, which may cause uneven drug ratio when spraying, thereby affecting the effect of the insect repellent spray. Therefore, a forestry insect repellent spray device with a filtering device is designed. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a forestry pest control spray device, which solves the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a forestry pest control spray device includes a placement box, a roller is arranged at the bottom of the placement box, a motor is fixedly installed on the side of the placement box, a water pump is fixedly installed on the top of the placement box, a water inlet is opened on the top of the placement box, a medicine inlet is opened on the top of the placement box, a filtering device for filtering the medicine is arranged inside the placement box, the filtering device includes a rotating shaft, the rotating shaft is fixedly installed on the output end of the motor, a filter plate is fixedly installed inside the placement box, a stirring rod is fixedly installed on the circumferential surface of the rotating shaft, and a sleeve is fixedly installed on the circumferential surface of the rotating shaft. A connecting tube, a connecting shaft 1 is fixedly installed on the surface of the connecting tube, a connecting rod is fixedly installed on the circumferential surface of the connecting shaft 1, a scraper is fixedly installed on the end of the connecting rod away from the connecting tube, an adjusting device for adjusting the spraying height is arranged above the placement box, and a supporting device for supporting the placement box is arranged below the placement box. The rotation of the connecting shaft 1 will drive the connecting rod on the surface to move left and right, and the left and right movement of the connecting rod will drive the scraper to clean impurities on the surface of the filter plate. After cleaning the surface impurities, the spray liquid is purer, and the spray flow or distribution will not be affected by impurities clogging the nozzle, thus ensuring that the spray is more uniform, the coverage area is wider, and the insect prevention effect is better.

[0007] According to the above technical solution, two stirring rods are provided, and the stirring rods are symmetrically distributed with the filter plate as the center. The stirring rods rotate and start to stir the water and the insect repellent.

[0008] According to the above technical solution, the scraper is slidably connected to the surface of the filter plate. Two scrapers are provided. The scrapers are symmetrically distributed around the filter plate. The left and right movement of the connecting rod drives the scraper to clean impurities on the surface of the filter plate.

[0009] According to the above technical scheme, the adjusting device includes a medicine box, which is fixedly installed above the placement box, and a baffle is fixedly penetrated through the inner wall of the medicine box, and a groove 1 is opened on the inner wall of the baffle, and a concave plate is fixedly installed above the placement box, a spray gun is slidably installed on the surface of the baffle, a slide plate 1 is slidably installed on the inner wall of the groove 1, and a U-shaped plate is slidably installed on the surface of the baffle, and a vertical plate is fixedly installed on the side of the placement box, and a connecting shaft 2 is rotatably penetrated on the surface of the vertical plate, and a gear 1 is fixedly installed on the circumferential surface of the connecting shaft 2, and a rocker is fixedly installed on the surface of the connecting shaft 2, and the upward movement of the spray gun will drive the bottom slide plate 2 to slide upward, and at the same time, when the spray gun moves upward, it will contact and squeeze the slide plate 1 to slide upward on the inner wall of the groove 1, thereby adjusting the height when trees of different heights need to be sprayed for pest control, which can significantly improve the coverage, uniformity and effect of the spray, while reducing the waste of medicine and improving the efficiency of resource utilization.

[0010] According to the above technical solution, a groove 2 is opened inside the lower part of the baffle, and the slide plate 2 is slidably connected to the inner wall of the groove 2. The upward movement of the spray gun will drive the slide plate 2 at the bottom to slide upward.

[0011] According to the above technical solution, the slide plate 2 is fixedly connected to the circumferential surface of the spray barrel, and a tooth block 1 is fixedly installed on the side of the U-shaped plate. The rotation of gear 1 will engage with the tooth block 1 on the surface of the U-shaped plate and drive the U-shaped plate to move upward.

[0012] According to the above technical scheme, the supporting device includes a fixing rod, which is fixedly installed on the surface of the placement box, and a gear 2 is rotatably installed on the circumferential surface of the fixing rod, a tooth block 2 is fixedly installed on the side of the U-shaped plate, a support plate is slidably installed on the surface of the placement box, a tooth block 3 is fixedly installed on the side of the support plate, a contact rod is fixedly installed on the side of the roller, a mounting plate is fixedly installed on the bottom of the placement box, a connecting plate is slidably penetrated through the inner wall of the mounting plate, and a limiting wheel is fixedly installed on the side of the connecting plate, and when the limiting wheel moves to the movement track of the contact rod, the contact rod will be stuck, and when the contact rod is stuck, the roller will stop moving, thereby improving the safety of the equipment, further improving the stability of the equipment in spraying pesticides and killing insects, extending the service life of the equipment, improving work efficiency, and reducing labor costs.

[0013] According to the above technical solution, the tooth block 2 is meshed with the gear 2, the gear 2 is meshed with the tooth block 3, and the sides of the connecting plate and the mounting plate are provided with telescopic elastic rods. When the connecting plate is squeezed, it will move downward away from the support plate.

[0014] The present invention provides a forestry pest control spray device, which has the following beneficial effects: (1) The forest pest control spray device, through the setting of the filtering device, cooperates with the operation of the rotating shaft, the filter plate, the stirring rod, the sleeve tube, the connecting shaft 1, the connecting rod and the scraper, manually pours the insect repellent and water from the water inlet and the water pump into the interior of the placement box respectively, and then the insect repellent and water are filtered through the filter plate, thereby effectively removing impurities in the water, preventing these impurities from reacting with the agent or affecting the dissolution and uniform mixing of the agent, so as to ensure that the agent and water are evenly mixed during the stirring process, the rotation of the connecting shaft 1 will drive the connecting rod on the surface to move left and right, and the left and right movement of the connecting rod will drive the scraper to clean the impurities on the surface of the filter plate. After cleaning the surface impurities, the spray liquid is purer, and the spray flow or distribution will not be affected by the impurities blocking the nozzle.

[0015] (2) The forestry pest control spray device, through the setting of the supporting device, cooperates with the operation between the medicine box, the baffle, the groove one, the concave plate, the spray barrel, the slide plate one, the slide plate two, the U-shaped plate, the vertical plate, the connecting shaft two, the gear one and the rocker. When the insect repellent and water are stirred and mixed, the medicine enters the interior of the medicine box through the action of the water pump, and then is sprayed outward through the spray barrel to kill insects, effectively killing or inhibiting the spread of insect pests, which can ensure the sustainability of the ecological environment and forestry production. The upward movement of the spray barrel will drive the slide plate two at the bottom to slide upward. At the same time, when the spray barrel moves upward, it will contact and squeeze the slide plate one to slide upward on the inner wall of the groove one, thereby adjusting the height when trees of different heights need to be sprayed for pest control, which can significantly improve the coverage, uniformity and effect of the spray, while reducing the waste of medicine and improving the efficiency of resource utilization.

[0016] (3) The forest pest control spray device, through the setting of the supporting device, operates in coordination among the fixed rod, gear 2, tooth block 2, support plate and tooth block 3. The rotation of gear 2 will mesh with tooth block 3 and drive tooth block 3 to move downward. The downward movement of tooth block 3 will drive the support plate to move downward. The downward movement of the support plate will support the entire device, preventing the device from shaking when spraying pesticides to eliminate pests. This can make the device more stable, durable and efficient, and ensure safe operation, thereby improving the overall operation effect and economic benefits.

[0017] (4) The forest pest control spray device, through the setting of a stabilizing device, operates in coordination between a contact rod, a mounting plate, a connecting plate, a telescopic spring rod and a limiting wheel. When the connecting plate is squeezed, it moves downward in a direction away from the supporting plate. When the connecting plate moves downward in a direction away from the supporting plate, it drives the limiting wheel on the surface to move downward in a direction away from the supporting plate. When the limiting wheel moves to the movement trajectory of the contact rod, it jams the contact rod. When the contact rod is jammed, the roller stops moving, thereby improving the safety of the equipment, further improving the stability of the equipment in spraying pesticides and removing pests, extending the service life of the equipment, improving work efficiency, and reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the filter plate and the placement box of the present invention; Figure 3 It is a structural schematic diagram of the scraper and the filter plate of the present invention; Figure 4 It is a schematic diagram of the structure of the groove 1 and the baffle of the present invention; Figure 5 This is a schematic diagram of the structure of the U-shaped plate and gear 1 of the present invention; Figure 6 This is a schematic diagram of the structure of gear block 3 and gear 2 of the present invention; Figure 7 It is a schematic structural diagram of the connecting plate and the supporting plate of the present invention.

[0019] In the figure: 1. placement box; 2. roller; 3. motor; 4. water pump; 5. water inlet; 6. medicine inlet; 71. rotating shaft; 72. filter plate; 73. stirring rod; 74. sleeve tube; 75. connecting shaft one; 76. connecting rod; 77. scraper; 81. medicine box; 82. baffle; 83. groove one; 84. concave plate; 85. spray gun; 86. slide plate one; 87. slide plate two; 88. U-shaped plate; 89. vertical plate; 810. connecting shaft two; 811. gear one; 812. rocker; 91. fixing rod; 92. gear two; 93. tooth block two; 94. support plate; 95. tooth block three; 96. contact rod; 97. mounting plate; 98. connecting plate; 99. telescopic spring rod; 910. limiting wheel. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1-Figure 7 An embodiment of the present invention is: a forestry insect pest spray device, including a placement box 1, a roller 2 is arranged at the bottom of the placement box 1, a motor 3 is fixedly installed on the side of the placement box 1, a water pump 4 is fixedly installed on the top of the placement box 1, a water inlet 5 is opened at the top of the placement box 1, a medicine inlet 6 is opened at the top of the placement box 1, and a filtering device for filtering the medicine is arranged inside the placement box 1, the filtering device includes a rotating shaft 71, the rotating shaft 71 is fixedly installed at the output end of the motor 3, a filter plate 72 is fixedly installed inside the placement box 1, a stirring rod 73 is fixedly installed on the circumferential surface of the rotating shaft 71, a sleeve 74 is fixedly installed on the circumferential surface of the rotating shaft 71, and the surface of the sleeve 74 A connecting shaft 75 is fixedly installed, and a connecting rod 76 is fixedly installed on the circumferential surface of the connecting shaft 75. A scraper 77 is fixedly installed on the end of the connecting rod 76 away from the sleeve 74. An adjusting device for adjusting the spraying height is arranged above the placement box 1, and a supporting device for supporting the placement box 1 is arranged below the placement box 1. The rotation of the connecting shaft 75 will drive the connecting rod 76 on the surface to move left and right. The movement of the connecting rod 76 left and right will drive the scraper 77 to clean the impurities on the surface of the filter plate 72. After cleaning the surface impurities, the spray liquid is purer, and the spray flow or distribution will not be affected by the clogging of the nozzle by impurities. This can ensure that the spray is more uniform, the coverage area is wider, and the insect prevention effect is better.

[0022] Two stirring rods 73 are provided, and the stirring rods 73 are symmetrically distributed with the filter plate 72 as the center. The stirring rods 73 rotate and start to stir the water and the insect repellent.

[0023] The scraper 77 is slidably connected to the surface of the filter plate 72 . Two scrapers 77 are provided. The scrapers 77 are symmetrically distributed with the filter plate 72 as the center. The left and right movement of the connecting rod 76 will drive the scraper 77 to clean the impurities on the surface of the filter plate 72 .

[0024] When this embodiment is working: when in use, the insect repellent and water are manually poured into the interior of the placement box 1 from the water inlet 5 and the water pump 4 respectively, and then the insect repellent and water are filtered through the filter plate 72, thereby effectively removing impurities in the water, preventing these impurities from reacting with the agent or affecting the dissolution and uniform mixing of the agent, so as to ensure that the agent and water are evenly mixed during the stirring process, thereby improving the uniformity of the spray effect, ensuring that the agent can be evenly sprayed to the target area, and enhancing the insect repellent effect. At the same time, the motor 3 is started, and the output end of the motor 3 drives the rotating shaft 71 to rotate, and the rotation of the rotating shaft 71 drives the stirring rod 73 on the surface to rotate, and the stirring rod 73 rotates and starts to stir the water and the insect repellent, which can ensure the insect repellent. The medicine is completely mixed with water to form a uniform medicine solution, which improves the spraying effect, enhances the efficacy, avoids precipitation, reduces equipment failures, and makes the spraying more uniform, thereby effectively killing pests and preventing them from breeding. At the same time, when the rotating shaft 71 rotates, it will drive the sleeve 74 on the surface to rotate, and when the sleeve 74 rotates, it will drive the connecting shaft 75 on the surface to rotate. The rotation of the connecting shaft 75 will drive the connecting rod 76 on the surface to move left and right. The movement of the connecting rod 76 left and right will drive the scraper 77 to clean the impurities on the surface of the filter plate 72. After cleaning the surface impurities, the spray liquid is purer and will not affect the spray flow or distribution due to impurities clogging the nozzle. This can ensure that the spray is more uniform, the coverage area is wider, and the insect repellent effect is better.

[0025] See also Figure 1-Figure 7On the basis of the above embodiment, in another embodiment of the present invention, the regulating device comprises a medicine box 81, the medicine box 81 is fixedly installed above the placement box 1, a baffle 82 is fixedly penetrated through the inner wall of the medicine box 81, a groove 83 is opened on the inner wall of the baffle 82, a concave plate 84 is fixedly installed above the placement box 1, a spray gun 85 is slidably installed on the surface of the baffle 82, a slide plate 86 is slidably installed on the inner wall of the groove 83, a U-shaped plate 88 is slidably installed on the surface of the baffle 82, a vertical plate 89 is fixedly installed on the side of the placement box 1, and a surface of the vertical plate 89 is rotatably penetrated Connecting shaft 2 810, a gear 1 811 is fixedly installed on the circumferential surface of connecting shaft 2 810, and a rocker 812 is fixedly installed on the surface of connecting shaft 2 810. The upward movement of the spray barrel 85 will drive the bottom slide plate 2 87 to slide upward. At the same time, when the spray barrel 85 moves upward, it will contact and squeeze the slide plate 1 86 to slide upward on the inner wall of the groove 1 83, thereby adjusting the height when trees of different heights need to be sprayed for pest control, which can significantly improve the coverage, uniformity and effect of the spray, while reducing the waste of medicine and improving the efficiency of resource utilization.

[0026] A groove 2 is provided inside the lower part of the baffle 82, and a slide plate 2 87 is slidably connected to the inner wall of the groove 2. When the spray gun 85 moves upward, the slide plate 2 87 at the bottom will slide upward.

[0027] The slide plate 2 87 is fixedly connected to the circumferential surface of the spray barrel 85, and a tooth block 1 is fixedly installed on the side of the U-shaped plate 88. The rotation of the gear 1 811 will mesh with the tooth block 1 on the surface of the U-shaped plate 88 and drive the U-shaped plate 88 to move upward.

[0028] The supporting device includes a fixing rod 91, which is fixedly mounted on the surface of the placement box 1. A gear 2 92 is rotatably mounted on the circumferential surface of the fixing rod 91. A tooth block 2 93 is fixedly mounted on the side of the U-shaped plate 88. A support plate 94 is slidably mounted on the surface of the placement box 1. A tooth block 3 95 is fixedly mounted on the side of the support plate 94. A contact rod 96 is fixedly mounted on the side of the roller 2. A mounting plate 97 is fixedly mounted on the bottom of the placement box 1. A connecting plate 98 slides through the inner wall of the mounting plate 97. A limiting wheel 910 is fixedly mounted on the side of the connecting plate 98. When the limiting wheel 910 moves to the movement track of the contact rod 96, the contact rod 96 will be stuck. When the contact rod 96 is stuck, the roller 2 will stop moving, thereby improving the safety of the equipment, further improving the stability of the equipment in spraying pesticides and killing insects, extending the service life of the equipment, improving work efficiency, and reducing labor costs.

[0029] Tooth block 2 93 meshes with gear 2 92 , gear 2 92 meshes with tooth block 3 95 , and telescopic spring rods 99 are provided on the sides of connecting plate 98 and mounting plate 97 . When connecting plate 98 is squeezed, it moves downward in a direction away from support plate 94 .

[0030] When the present embodiment is working: at the same time, after the insect repellent and water are stirred and mixed, the insect repellent enters the interior of the medicine box 81 through the action of the water pump 4, and then is sprayed externally through the spray gun 85 to eliminate insects, effectively killing or inhibiting the spread of insect pests, and can ensure the sustainability of the ecological environment and forestry production. When the heights of the trees are inconsistent, the rocker 812 is manually rotated, and the rotation of the rocker 812 will drive the connecting shaft 2 810 to rotate. The rotation of the connecting shaft 2 810 will also drive the gear 1 811 on the surface to rotate. The rotation of the gear 1 811 will mesh with the tooth block on the surface of the U-shaped plate 88 and drive the U-shaped plate 88 to rotate. 88 moves upward, and the upward movement of the U-shaped plate 88 will drive the spray barrel 85 to move upward. The upward movement of the spray barrel 85 will drive the bottom slide plate 87 to slide upward. At the same time, when the spray barrel 85 moves upward, it will contact the extrusion slide plate 86 to slide upward on the inner wall of the groove 83, thereby adjusting the height when spraying pesticides for trees of different heights to kill insects. This can significantly improve the coverage, uniformity and effect of the spray, while reducing the waste of pesticides, improving the efficiency of resource utilization, and ensuring the safety and flexibility of operations, which is conducive to achieving more efficient, economical and environmentally friendly prevention and control goals.

[0031] At the same time, the rotation of gear 1 811 will mesh with the tooth block 1 on the surface of the U-shaped plate 88 and drive the U-shaped plate 88 to move upward. The upward movement of the U-shaped plate 88 will contact the meshing gear 2 92 and drive the gear 2 92 to rotate. The rotation of gear 2 92 will mesh with tooth block 3 95 and drive tooth block 3 95 to move downward. The downward movement of tooth block 3 95 will drive the support plate 94 to move downward. The downward movement of the support plate 94 will support the entire equipment to prevent the equipment from shaking when spraying pesticides and killing insects, making the equipment more stable, durable, and efficient, and ensuring safe operation, thereby improving the overall operation effect and economic benefits. At the same time, when the support plate 94 moves downward When the connecting plate 98 moves, it will contact and squeeze the inclined surface of the connecting plate 98. When the connecting plate 98 is squeezed, it will move downward in the direction away from the support plate 94. When the connecting plate 98 moves downward in the direction away from the support plate 94, it will drive the limiting wheel 910 on the surface to move downward in the direction away from the support plate 94. When the limiting wheel 910 moves to the movement track of the contact rod 96, it will jam the contact rod 96. When the contact rod 96 is jammed, the roller 2 will stop moving, thereby improving the safety of the equipment, further improving the stability of the equipment in spraying and pest control, extending the service life of the equipment, improving work efficiency, and reducing labor costs.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A forestry pest control spray device, comprising a placement box (1), characterized in that: The bottom of the placement box (1) is provided with a roller (2), a motor (3) is fixedly mounted on the side of the placement box (1), a water pump (4) is fixedly mounted on the top of the placement box (1), a water inlet (5) is provided on the top of the placement box (1), a medicine inlet (6) is provided on the top of the placement box (1), a filtering device for filtering medicines is provided inside the placement box (1), the filtering device comprises a rotating shaft (71), the rotating shaft (71) is fixedly mounted on the output end of the motor (3), and a filter plate (72) is fixedly mounted inside the placement box (1). A stirring rod (73) is fixedly mounted on the circumferential surface of the rotating shaft (71), a sleeve tube (74) is fixedly mounted on the circumferential surface of the rotating shaft (71), a connecting shaft (75) is fixedly mounted on the surface of the sleeve tube (74), a connecting rod (76) is fixedly mounted on the circumferential surface of the connecting shaft (75), a scraper (77) is fixedly mounted on one end of the connecting rod (76) away from the sleeve tube (74), an adjusting device for adjusting the spraying height is arranged above the placement box (1), and a supporting device for supporting the placement box (1) is arranged below the placement box (1).

2. A forestry pest control spray device according to claim 1, characterized in that: Two stirring rods (73) are provided, and the stirring rods (73) are symmetrically distributed with the filter plate (72) as the center.

3. A forestry pest control spray device according to claim 2, characterized in that: The scraper (77) is slidably connected to the surface of the filter plate (72), two scrapers (77) are provided, and the scrapers (77) are symmetrically distributed with the filter plate (72) as the center.

4. A forestry pest control spray device according to claim 3, characterized in that: The regulating device comprises a medicine box (81), wherein the medicine box (81) is fixedly installed above the storage box (1), a baffle (82) is fixedly penetrated through the inner wall of the medicine box (81), a groove 1 (83) is opened on the inner wall of the baffle (82), a concave plate (84) is fixedly installed above the storage box (1), a spray gun (85) is slidably installed on the surface of the baffle (82), a slide plate 1 (86) is slidably installed on the inner wall of the groove 1 (83), a U-shaped plate (88) is slidably installed on the surface of the baffle (82), a vertical plate (89) is fixedly installed on the side of the storage box (1), a connecting shaft 2 (810) is rotatably penetrated through the surface of the vertical plate (89), a gear 1 (811) is fixedly installed on the circumferential surface of the connecting shaft 2 (810), and a rocker (812) is fixedly installed on the surface of the connecting shaft 2 (810).

5. A forestry pest control spray device according to claim 4, characterized in that: A second groove is provided in the lower interior of the baffle plate (82), and the second slide plate (87) is slidably connected to the inner wall of the second groove.

6. A forestry pest control spray device according to claim 5, characterized in that: The second slide plate (87) is fixedly connected to the circumferential surface of the spray barrel (85), and a tooth block (1) is fixedly mounted on the side surface of the U-shaped plate (88).

7. A forestry pest control spray device according to claim 6, characterized in that: The supporting device comprises a fixing rod (91), the fixing rod (91) being fixedly mounted on the surface of the placement box (1), a gear 2 (92) being rotatably mounted on the circumferential surface of the fixing rod (91), a tooth block 2 (93) being fixedly mounted on the side of the U-shaped plate (88), a supporting plate (94) being slidably mounted on the surface of the placement box (1), a tooth block 3 (95) being fixedly mounted on the side of the support plate (94), a contact rod (96) being fixedly mounted on the side of the roller (2), a mounting plate (97) being fixedly mounted on the bottom of the placement box (1), a connecting plate (98) being slidably penetrated through the inner wall of the mounting plate (97), and a limiting wheel (910) being fixedly mounted on the side of the connecting plate (98).

8. The forestry pest control spray device according to claim 7, characterized in that: The tooth block 2 (93) meshes with the gear 2 (92), the gear 2 (92) meshes with the tooth block 3 (95), and telescopic spring rods (99) are provided on the sides of the connecting plate (98) and the mounting plate (97).

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