Forestry tree fertilizing device

Abstract

A forestry tree fertilizing device comprises a rack, the rack is connected with a bidirectional lead screw, the bidirectional lead screw is connected with two symmetrically-arranged supports, the two supports are slidably connected with the rack, a spline shaft is connected with the two supports through gears, the gears on the supports are connected with cams, the cams are connected with lifting rods, and the lifting rods are connected with the supports. Each lifting rod is connected with a group of annular telescopic devices, each annular telescopic device comprises a telescopic seat, each telescopic seat is connected with a connecting rod device through two second gears meshed with each other, each connecting rod device is formed by hinging a group of unequal-length connecting rods, one second gear is connected with a rack through a gear, and the rack is connected with a support through a cam; the device covers the whole tree in height and wraps the whole tree in the radial direction, the leaf fertilizer can be sprayed to the whole tree, the fertilizer efficiency is obvious, the leaf fertilizer is saved, the environment is not polluted, and the spraying efficiency is high.

Description

Technical Field

[0001] The invention relates to the field of agricultural machinery, and in particular to a forestry tree fertilization device. Background Art

[0002] In the process of spraying foliar fertilizer on forestry trees, since forestry trees are relatively tall and have large crowns, it is necessary to spray around the trees and move up and down in the height direction to spray the foliar fertilizer on the entire tree. The existing tree foliar fertilizer spraying device generally moves along the middle of the tree, and the nozzle sprays to the left and right sides, and the foliar fertilizer cannot be sprayed on the entire tree. Not only does it fail to achieve the ideal fertilizer effect, but it also wastes foliar fertilizer, pollutes the environment, and has low spraying efficiency. Summary of the invention

[0003] In view of the above-mentioned deficiencies in the prior art, the present invention provides a forestry tree fertilizing device that covers the entire tree in height, wraps the entire tree in radial direction, protects the tree, is safe to use, can spray foliar fertilizer on the entire tree, has obvious fertilizer effect, saves foliar fertilizer, does not pollute the environment, and has high spraying efficiency.

[0004] The purpose of the present invention is to be achieved through the following technical solutions: A forestry tree fertilizing device comprises a frame, wherein the frame is connected to a bidirectional screw, the bidirectional screw is connected to two symmetrically arranged brackets, the two brackets are slidably connected to the frame, the spline shaft and the two brackets are connected by gears, the gears on the brackets are connected to cams, the cams are connected to lifting rods, the lifting rods are connected to the brackets, each lifting rod is connected to a group of annular telescopic devices, the annular telescopic devices include a telescopic seat, the telescopic seat is respectively connected to a connecting rod device through two mutually meshing No. 2 gears, the connecting rod device is hinged by a group of unequal length connecting rods, one of the No. 2 gears is connected to a rack through a gear, and the rack is connected to the bracket through a cam.

[0005] The frame end surface is provided with a frame slideway, a No. 1 bearing seat is provided in the middle of the frame slideway, a No. 2 bearing seat is provided on one side of the No. 1 bearing seat, a bidirectional lead screw is rotatably connected in the No. 2 bearing seat, the bidirectional lead screw is connected to a No. 2 motor fixed on the side of the No. 2 bearing seat through a belt and a pulley, and the threads on both sides of the bidirectional lead screw are rotated in opposite directions. The No. 1 bearing seat of the frame is rotatably connected in the middle of the spline shaft, and the spline shaft is connected to a No. 1 motor fixed on the side of the No. 1 bearing seat through a belt and a pulley.

[0006] A bracket slider is provided at the lower part of the bracket, a bracket bearing seat is provided at the upper part of one side of the bracket, a bracket nut is provided on one side of the bracket bearing seat, a bracket hole is provided on the outer side of the bracket bearing seat, and two brackets are symmetrically arranged on both sides of the No. 1 bearing seat. The bracket slider at the lower part of each bracket is slidably connected to the frame slide groove, and the bracket nuts of the two brackets are respectively connected to the threads on both sides of the bidirectional screw.

[0007] The middle of the bracket bearing seat of the bracket is rotatably connected to the first bevel gear, the middle of the first bevel gear is slidably connected to the spline shaft, the first bevel gear and the second bevel gear are meshed with each other, the second bevel gear is rotatably connected to the bracket hole, and the middle of the second bevel gear is fixedly connected to the camshaft at the lower part of the cam.

[0008] A vertical pole is arranged outside the bracket, a vertical pole slide groove is arranged in the middle of the vertical pole, a vertical pole bottom groove is arranged at the bottom of the vertical pole slide groove, a lifting rod is slidably connected in the vertical pole slide groove, and a lifting rod cam rod at the bottom of the lifting rod passes through the vertical pole bottom groove and is slidably connected to the cam.

[0009] Beneficial effects: The bidirectional lead screw and the brackets on both sides of the present invention cooperate with each other so that the device can adapt to trees with different row spacings. The slidingly connected No. 1 bevel gear and the spline shaft can transmit the rotation to the cams on both sides when the distance of the bracket changes. The cam drives the lifting rod and the annular telescopic device to move up and down so that the device can cover the trees along the height direction of the trees when spraying foliar fertilizer. The rack of the annular telescopic device and a group of vertical rod cams of the bracket cooperate with each other so that the connecting rod device can telescope back and forth in an approximately semicircular shape. The two connecting rod devices form an approximately circular shape. The two connecting rod devices surround the tree crown. The two connecting rod devices hug the tree crown back and forth along the radial direction of the crown, so that the foliar fertilizer sprayed by the nozzle covers the entire tree, and the fertilizer effect is obvious. When spraying foliar fertilizer, the nozzle surrounds the entire crown to protect the tree. It is safe to use and will not spray to the starting place. It saves foliar fertilizer and does not pollute the environment. The spraying efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic structural diagram of the forestry tree fertilization device described in the present invention.

[0011] Figure 2 The figure is a schematic diagram of the connection structure of the frame, bracket, lifting rod and cam of the present invention.

[0012] Figure 3 The figure is a schematic diagram of the frame structure of the present invention.

[0013] Figure 4 This is a schematic diagram of the support structure described in the present invention.

[0014] Figure 5 The figure is a schematic diagram of the lifting rod structure of the present invention.

[0015] Figure 6 It is a schematic diagram of the cam structure of the present invention.

[0016] Figure 7 It is a schematic structural diagram of the annular telescopic device described in the present invention.

[0017] Figure 8 It is a schematic diagram of the lower structure of the annular telescopic device described in the present invention.

[0018] Fig. 9 It is a schematic diagram of the telescopic seat structure of the present invention.

[0019] Fig.10 It is a schematic diagram of the structure of the telescopic seat slider described in the present invention.

[0020] Fig.11 The figure is a schematic diagram of the rack structure of the present invention.

[0021] Fig.12 This is a schematic structural diagram of the connecting rod device described in the present invention.

[0022] Fig.13 This is a schematic diagram of the No. 1 connecting rod structure of the present invention.

[0023] In the figure: 110, frame; 111, frame slide; 112, bearing seat No. 1; 113, bearing seat No. 2; 114, foliar fertilizer cylinder; 120, bracket; 121, bracket slider; 122, bracket bearing seat; 123, bracket nut; 124, bracket hole; 125, vertical pole; 126, vertical pole slide; 127, vertical pole bottom groove; 128, vertical pole cam; 130, lifting rod; 131, lifting rod cam rod; 132, fixed pipe; 140, cam; 141, camshaft; 150, spline shaft; 160, bevel gear No. 1; 170, bevel gear No. 2; 180, motor No. 1; 190, two-way Lead screw; 210, No. 2 motor; 300, annular telescopic device; 310, telescopic seat; 311, telescopic seat slider; 312, telescopic seat hole; 313, telescopic seat slide; 314, telescopic seat bottom slide; 320, telescopic seat slider; 330, rack; 331, rack slider; 332, rack cam rod; 340, spring; 350, No. 1 gear; 360, No. 2 gear; 370, nozzle; 400, connecting rod device; 410, No. 1 connecting rod; 411, No. 1 connecting rod middle hole; 412, No. 1 connecting rod No. 1 hole; 413, No. 1 connecting rod No. 2 hole; 420, No. 2 connecting rod; 430, No. 3 connecting rod. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below according to the accompanying drawings and embodiments: refer to Figure 1A forestry tree fertilizing device includes a frame 110, the frame 110 is connected to a bidirectional screw 190, the bidirectional screw 190 is connected to two symmetrically arranged brackets 120, the two brackets 120 are slidably connected to the frame 110, the spline shaft 150 and the two brackets 120 are connected by gears, the gears on the brackets 120 are connected to a cam 140, the cam 140 is connected to a lifting rod 130, the lifting rod 130 is connected to the brackets 120, each lifting rod 130 is connected to a group of annular telescopic devices 300, the annular telescopic devices 300 include a telescopic seat 310, the telescopic seat 310 is respectively connected to a connecting rod device 400 through two mutually meshing No. 2 gears 360, the connecting rod device 400 is hinged by a group of unequal length connecting rods, one of the No. 2 gears 360 is connected to a rack 330 through a gear, and the rack 330 is connected to the bracket 120 through a cam.

[0025] refer to Figure 2 to Figure 3 The end face of the frame 110 is provided with a frame slide groove 111, a No. 1 bearing seat 112 is provided in the middle of the frame slide groove 111, a No. 2 bearing seat 113 is provided on one side of the No. 1 bearing seat 112, a bidirectional lead screw 190 is rotatably connected in the No. 2 bearing seat 113, the bidirectional lead screw 190 is connected to the No. 2 motor 210 fixed on the side of the No. 2 bearing seat 113 through a belt and a pulley, and the threads on both sides of the bidirectional lead screw 190 have opposite rotation directions.

[0026] refer to Figure 2 to Figure 3 The No. 1 bearing seat 112 of the frame 110 is rotatably connected to the spline shaft 150 in the middle, and the spline shaft 150 is connected to the No. 1 motor 180 fixed on the side of the No. 1 bearing seat 112 through a belt and a pulley.

[0027] refer to Figures 2 to 4 A bracket slider 121 is provided at the lower part of the bracket 120, a bracket bearing seat 122 is provided at the upper part of one side of the bracket 120, a bracket nut 123 is provided on one side of the bracket bearing seat 122, and a bracket hole 124 is provided on the outer side of the bracket bearing seat 122. The two brackets 120 are symmetrically arranged on both sides of the No. 1 bearing seat 112, and the bracket slider 121 at the lower part of each bracket 120 is slidably connected to the frame slide groove 111, and the bracket nuts 123 of the two brackets 120 are respectively connected to the threads on both sides of the bidirectional screw 190.

[0028] refer to Figures 2 to 6 The support bearing seat 122 of the support 120 is rotatably connected to the first bevel gear 160 in the middle, the first bevel gear 160 is slidably connected to the spline shaft 150 in the middle, the first bevel gear 160 and the second bevel gear 170 are meshed with each other, the second bevel gear 170 is rotatably connected to the support hole 124, and the second bevel gear 170 is fixedly connected to the camshaft 141 at the lower part of the cam 140 in the middle.

[0029] refer to Figures 2 to 6A vertical rod 125 is provided on the outside of the bracket 120, a vertical rod slide groove 126 is provided in the middle of the vertical rod 125, a vertical rod bottom groove 127 is provided at the bottom of the vertical rod slide groove 126, a lifting rod 130 is slidably connected in the vertical rod slide groove 126, and a lifting rod cam rod 131 at the lower part of the lifting rod 130 passes through the vertical rod bottom groove 127 and is slidably connected to the cam 140. The rotation of the No. 2 motor 210 drives the bidirectional screw 190 to rotate through the belt and the pulley. The rotation of the bidirectional screw 190 drives the brackets 120 on both sides to move closer or farther synchronously. The distance between the two brackets 120 is adjusted by rotating the bidirectional screw 190, so that the annular telescopic devices 300 on both sides can be as close to the trees as possible to adapt to the distance between the two rows of trees. The rotation of the No. 1 motor 180 drives the spline shaft 150 to rotate through the belt and the pulley. The rotation of the spline shaft 150 drives the No. 1 bevel gear 160 on both sides to rotate. The rotation of the No. 1 bevel gear 160 drives the respective No. 2 bevel gears 170 to rotate. The rotation of the No. 2 bevel gear 170 drives the respective cams 140 to rotate. The rotation of the cam 140 drives the respective lifting rods 130 to move up and down. The sliding connection between the No. 1 bevel gear 160 and the spline shaft 150 allows the rotation to be transmitted to the cams 140 on both sides when the distance between the brackets 120 changes.

[0030] refer to Figure 12 to Figure 13 The No. 1 connecting rod 410 is provided with a No. 1 connecting rod middle hole 411 in the middle, and a No. 1 connecting rod first hole 412 and a No. 1 connecting rod second hole 413 are provided on both sides of the No. 1 connecting rod 410, respectively. The distance between the No. 1 connecting rod middle hole 411 and the No. 1 connecting rod first hole 412 is smaller than the distance between the No. 1 connecting rod middle hole 411 and the No. 1 connecting rod first hole 412, the distance between the No. 1 connecting rod middle hole 411 and the No. 1 connecting rod first hole 412 is equal to the distance between the reaming holes on both sides of the No. 2 connecting rod 420, the distance between the No. 1 connecting rod middle hole 411 and the No. 1 connecting rod second hole 413 is equal to the distance between the reaming holes on both sides of the No. 3 connecting rod 430, and the middle of the connecting rod device 400 is hinged to each other by multiple No. 1 connecting rods 410 to form a scissors The connecting rod 400 has a structure in which the middle hole 411 of the No. 1 connecting rod 410 is hinged to each other, the No. 1 connecting rod first hole 412 and the No. 1 connecting rod second hole 413 of two adjacent No. 1 connecting rods 410 are respectively hinged to each other, and the two No. 1 connecting rods 410 hinged to each other on both sides of the connecting rod device 400 are respectively hinged to the No. 2 connecting rod 420 and the No. 3 connecting rod 430, the No. 1 connecting rod second hole 413 of one No. 1 connecting rod 410 is hinged to one side of the No. 3 connecting rod 430, and the No. 1 connecting rod first hole 412 of the other No. 1 connecting rod 410 is hinged to one side of the No. 2 connecting rod 420, and the other sides of the No. 2 connecting rod 420 and the No. 3 connecting rod 430 are hinged to each other, and a group of nozzles 370 are evenly arranged on the inner side of the connecting rod device 400. Since the distance between the middle hole 411 of the No. 1 connecting rod and the first hole 412 of the No. 1 connecting rod is smaller than the distance between the middle hole 411 of the No. 1 connecting rod and the first hole 412 of the No. 1 connecting rod, when the connecting rod device 400 is extended or retracted, the shape of the entire connecting rod device 400 remains approximately circular.

[0031] refer to Figures 7 to 9 The telescopic seat 310 is in an arc shape, a telescopic seat slider 311 is provided at the lower middle part of the lifting rod 130, a group of fixed tubes 132 are evenly provided on the side of the lifting rod 130, each fixed tube 132 is provided with an annular telescopic device 300, and each telescopic seat slider 311 is inserted into the corresponding fixed tube 132 and fixed by bolts.

[0032] refer to Figures 7 to 11 Two symmetrical telescopic seat holes 312 are provided in the middle of the telescopic seat 310, and a telescopic seat slide groove 313 is provided on the outer side of each telescopic seat hole 312. Each telescopic seat hole 312 is rotatably connected to the No. 2 gear 360 respectively. Two symmetrical connecting rod devices 400 are provided on both sides of the telescopic seat 310. The intermediate shaft of the No. 2 gear 360 is the dumpling shaft of the No. 2 connecting rod 420 and the No. 3 connecting rod 430 of each connecting rod device 400. The intermediate shaft of the No. 2 gear 360 is fixedly connected to the corresponding No. 3 connecting rod 430. The dumpling shafts of the two outermost No. 1 connecting rods 410 of each connecting rod device 400 are rotatably connected to the middle hole of the telescopic seat slider 320, and the telescopic seat slider 320 is slidably connected to the telescopic seat slide groove 313 on the corresponding side.

[0033] refer to Figures 7 to 11 A telescopic seat bottom slide groove 314 is provided at the lower part of the telescopic seat 310, and a rack 330 is provided in the telescopic seat bottom slide groove 314. A rack slider 331 on the side of the rack 330 is slidably connected to the telescopic seat bottom slide groove 314. The rack 330 and the inner side of the telescopic seat bottom slide groove 314 are connected to a spring 340. The rack 330 and the first gear 350 are meshed with each other, and the first gear 350 is fixedly connected to the intermediate shaft of one of the second gears 360.

[0034] refer to Figure 4 , Fig.11A set of cams 128 are provided on one side of the vertical rod 125 of the bracket 120, and the set of vertical rod cams 128 are slidably connected with the rack cam rod 332 on the inner side of the rack 330. When the cam 140 rotates, it drives the corresponding lifting rod 130 to slide up and down. When the lifting rod 130 slides up and down, it drives the respective annular telescopic devices 300 to move up and down together. When the annular telescopic device 300 moves up and down, the rack cam rod 332 of the rack 330 slides along the surface of the set of vertical rod cams 128. The rack 330 slides left and right under the action of the vertical rod cam 128. The left and right sliding of the rack 330 drives the No. 1 gear 350 to rotate back and forth. The No. 1 gear 350 rotates back and forth to drive the corresponding No. 2 gear 360 to rotate back and forth. When the No. 2 gear 360 rotates back and forth, it drives another No. 2 gear 360 meshing with it to rotate back and forth. The two No. 2 gears 360 rotate in opposite directions. The two No. 2 gears 360 rotate back and forth. When the No. 3 connecting rod 430 is extended and retracted, the No. 3 connecting rod 430 always maintains an approximately circular shape when extending and retracting, the force is balanced, and the operation is stable. When the No. 3 connecting rod 430 is rotated to the extreme position, each connecting rod device 400 forms an approximately semicircular shape, and the two connecting rod devices 400 form an approximately circular shape. The two connecting rod devices 400 surround the tree crown. The above connection enables the annular telescopic device 300 to move up and down while extending and retracting back and forth. The nozzle 370 on the annular telescopic device 300 not only moves up and down along the height of the crown but also hugs the crown back and forth along the radial direction of the crown, so that the foliar fertilizer sprayed by the nozzle 370 covers the entire tree.

[0035] An operating method of a forestry tree fertilizing device comprises the following steps: a first step, when using the device, foliar fertilizer is poured into the foliar fertilizer cylinder 114 of the frame 110, the foliar fertilizer is connected to the nozzle 370 through a pump, and the distance between the two brackets 120 is adjusted according to the distance between the two rows of trees so that the annular telescopic devices 300 on both sides are in contact with the outer sides of the trees on both sides; a second step, when adjusting, starting the second motor 210, the second motor 210 rotates to drive the bidirectional lead screw 190 to rotate through the belt and the pulley, the bidirectional lead screw 190 rotates to drive the brackets 120 and the annular telescopic device 300 on both sides to approach the trees, after the adjustment is completed, starting the first motor 180, the first motor 180 rotates to drive the spline shaft 150 to rotate through the belt and the pulley, the spline shaft 150 rotates to drive the first bevel gears 160 on both sides to rotate, the first bevel gear 160 rotates to drive the respective second bevel gears 170 to rotate, the second bevel gear 170 rotates to drive the respective cams 140 to rotate, the cam 140 rotates to drive the respective lifting rods 130 to move up and down, When the lifting rod 130 moves up and down, it drives the respective annular telescopic devices 300 to move up and down together. When the annular telescopic devices 300 move up and down, the rack cam rod 332 of the rack 330 slides along the surface of a set of vertical rod cams 128. The rack 330 slides left and right under the action of the vertical rod cams 128. The left and right sliding of the rack 330 drives the No. 1 gear 350 to rotate back and forth. The No. 1 gear 350 rotates back and forth to drive the corresponding No. 2 gear 360 to rotate back and forth. When the No. 2 gear 360 rotates back and forth, it drives another No. 2 gear 360 meshing with it to rotate back and forth. The two No. 2 gears 360 rotate in opposite directions. When the two No. 2 gears 360 rotate back and forth, they drive the corresponding The third connecting rod 430 rotates back and forth, and when the third connecting rod 430 rotates back and forth, it drives the connecting rod device 400 to extend and retract. The third connecting rod 430 always maintains an approximately circular shape when extending and retracting. When the third connecting rod 430 rotates to the extreme position, each connecting rod device 400 forms an approximately semicircular shape, and the two connecting rod devices 400 form an approximately circular shape. The two connecting rod devices 400 surround the tree crown. The above connection allows the annular telescopic device 300 to move up and down while extending and retracting back and forth. The nozzle 370 on the annular telescopic device 300 not only moves up and down along the height of the crown but also hugs the crown back and forth along the radial direction of the crown, so that the foliar fertilizer sprayed by the nozzle 370 covers the entire tree.

[0036] The two-way lead screw 190 and the brackets 120 on both sides cooperate with each other so that the device can adapt to trees with different row spacings. The sliding connection of the first bevel gear 160 and the spline shaft 150 can transmit the rotation to the cams 140 on both sides when the distance of the bracket 120 changes. The cams 140 drive the lifting rod 130 and the annular telescopic device 300 to move up and down so that the device covers the trees along the height direction of the trees when spraying foliar fertilizer. The rack 330 of the annular telescopic device 300 and a group of vertical rod cams 128 of the bracket 120 cooperate with each other. The two connecting rod devices 400 form an approximately circular shape, and the two connecting rod devices 400 surround the tree crown. The two connecting rod devices 400 embrace the tree crown back and forth along the radial direction of the tree crown, so that the foliar fertilizer sprayed by the sprinkler 370 covers the entire tree, and the foliar fertilizer is evenly covered with obvious fertilizer effect. When spraying foliar fertilizer, the sprinkler surrounds the entire tree crown and will not spray to the starting place. It is safe to use, saves foliar fertilizer, does not pollute the environment, and has high spraying efficiency.

Claims

1. A forestry tree fertilization device, characterized in that : The invention comprises a frame (110), wherein the frame (110) is connected to a bidirectional lead screw (190), the bidirectional lead screw (190) is connected to two symmetrically arranged brackets (120), the two brackets (120) are slidably connected to the frame (110), the spline shaft (150) and the two brackets (120) are connected via gears, the gears on the brackets (120) are connected to a cam (140), the cam (140) is connected to a lifting rod (130), and the lifting rod (130) is connected to the brackets (120) ), each lifting rod (130) is connected to a group of annular telescopic devices (300), the annular telescopic devices (300) comprising a telescopic seat (310), the telescopic seat (310) being respectively connected to a connecting rod device (400) via two mutually meshing No. 2 gears (360), the connecting rod device (400) being hingedly connected by a group of connecting rods of unequal lengths, one of the No. 2 gears (360) being connected to a rack (330) via a gear, and the rack (330) being connected to a bracket (120) via a cam.

2. A forestry tree fertilization device according to claim 1, characterized in that The frame (110) is provided with a frame slide groove (111) at the end surface, a No. 1 bearing seat (112) is provided in the middle of the frame slide groove (111), a No. 2 bearing seat (113) is provided on one side of the No. 1 bearing seat (112), a bidirectional lead screw (190) is rotatably connected in the No. 2 bearing seat (113), the bidirectional lead screw (190) is connected to a No. 2 motor (210) fixed on the side of the No. 2 bearing seat (113) through a belt and a pulley, and the threads on both sides of the bidirectional lead screw (190) are in opposite directions; the spline shaft (150) is connected to the No. 1 motor (180) fixed on the side of the No. 1 bearing seat (112) through a belt and a pulley.

3. A forestry tree fertilization device according to claim 1, characterized in that The bracket (120) is provided with a bracket slider (121) at the bottom, a bracket bearing seat (122) is provided at the top of one side of the bracket (120), a bracket nut (123) is provided at one side of the bracket bearing seat (122), and a bracket hole (124) is provided at the outer side of the bracket bearing seat (122). The brackets (120) are symmetrically arranged on both sides of the No. 1 bearing seat (112), the bracket slider (121) at the bottom of each bracket (120) is slidably connected to the frame slide groove (111), and the bracket nuts (123) of the two brackets (120) are respectively connected to the threads on both sides of the bidirectional lead screw (190).

4. A forestry tree fertilization device according to claim 1, characterized in that The support bearing seat (122) of the support (120) is rotatably connected to the first bevel gear (160) in the middle, the first bevel gear (160) is slidably connected to the spline shaft (150) in the middle, the first bevel gear (160) and the second bevel gear (170) are meshed with each other, the second bevel gear (170) is rotatably connected to the support hole (124), and the second bevel gear (170) is fixedly connected to the cam shaft (141) at the lower part of the cam (140) in the middle.

5. A forestry tree fertilization device according to claim 1, characterized in that A vertical rod (125) is provided on the outside of the bracket (120), a vertical rod slide groove (126) is provided in the middle of the vertical rod (125), a vertical rod bottom groove (127) is provided at the bottom of the vertical rod slide groove (126), a lifting rod (130) is slidably connected in the vertical rod slide groove (126), and a lifting rod cam rod (131) at the bottom of the lifting rod (130) passes through the vertical rod bottom groove (127) and is slidably connected to the cam (140).

6. A forestry tree fertilization device according to claim 1, characterized in that A No. 1 connecting rod middle hole (411) is provided in the middle of the No. 1 connecting rod (410), and a No. 1 connecting rod first hole (412) and a No. 1 connecting rod second hole (413) are provided on both sides of the No. 1 connecting rod (410). The middle of the connecting rod device (400) is composed of a plurality of No. 1 connecting rods (410) hinged to each other to form a scissor-like structure. The No. 1 connecting rod middle holes (411) in the middle of the No. 1 connecting rod (410) are hinged to each other, and the No. 1 connecting rod first holes (412) and the No. 1 connecting rod second holes (413) of two adjacent No. 1 connecting rods (410) are hinged to each other. The connecting rod device Two No. 1 connecting rods (410) hinged to each other on both sides of the (400) are respectively hinged to the No. 2 connecting rod (420) and the No. 3 connecting rod (430), the No. 1 connecting rod two holes (413) of the No. 1 connecting rod (410) are hinged to one side of the No. 3 connecting rod (430), the No. 1 connecting rod one hole (412) of the other No. 1 connecting rod (410) is hinged to one side of the No. 2 connecting rod (420), the No. 2 connecting rod (420) and the No. 3 connecting rod (430) are hinged to each other on the other sides, and a group of nozzles (370) are evenly arranged on the inner side of the connecting rod device (400).

7. A forestry tree fertilization device according to claim 1, characterized in that The telescopic seat (310) is in an arc shape. A telescopic seat slider (311) is provided at the lower middle part of the lifting rod (130). A group of fixed tubes (132) are evenly provided on the side of the lifting rod (130). Each fixed tube (132) is provided with an annular telescopic device (300). Each telescopic seat slider (311) is inserted into the corresponding fixed tube (132) and fixed by bolts.

8. A forestry tree fertilization device according to claim 1, characterized in that The telescopic seat (310) is provided with two symmetrical telescopic seat holes (312) in the middle, and a telescopic seat slide groove (313) is provided on the outside of each telescopic seat hole (312). Each telescopic seat hole (312) is rotatably connected to the second gear (360). Two symmetrical connecting rod devices (400) are provided on both sides of the telescopic seat (310). The intermediate shaft of the second gear (360) is the dumpling shaft of the second connecting rod (420) and the third connecting rod (430) of each connecting rod device (400). The intermediate shaft of the second gear (360) is fixedly connected to the corresponding third connecting rod (430). The dumpling shafts of the two outermost first connecting rods (410) of each connecting rod device (400) are rotatably connected to the middle hole of the telescopic seat slider (320), and the telescopic seat slider (320) is slidably connected to the telescopic seat slide groove (313) on the corresponding side.

9. A forestry tree fertilization device according to claim 1, characterized in that The telescopic seat (310) is provided with a telescopic seat bottom slide groove (314) at the lower part, the telescopic seat bottom slide groove (314) is provided with a rack (330), a rack slider (331) on the side of the rack (330) is slidably connected to the telescopic seat bottom slide groove (314), the rack (330) and the inner side of the telescopic seat bottom slide groove (314) are connected to a spring (340), the rack (330) and the first gear (350) are meshed with each other, and the first gear (350) is fixedly connected to the intermediate shaft of the second gear (360); a group of cams (128) of the vertical rod (125) of the bracket (120) are provided on one side of the vertical rod (125), and the vertical rod cam (128) and the rack cam rod (332) on the inner side of the rack (330) are slidably connected.

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