A mechanical tree whitening device for forestry

Abstract

The present invention relates to the field of tree whitening, in particular to a mechanical tree whitening device for forestry, comprising a base plate, a liquid medicine box arranged on the base plate for storing whitening liquid, an arc block A and an arc block B for whitening around trees to be whitened, wherein the base plate is connected to the arc block A through a multi-axis adjustment mechanism; the arc block A and the arc block B are both semicircular and connected through a snap mechanism, and the arc block A and the arc block B can be spliced ​​together to form a circle through the snap mechanism and put around the trees to be whitened; a spraying mechanism is installed on the surfaces of the arc block A and the arc block B, and the spraying mechanism comprises a plurality of fixed blocks, and the plurality of fixed blocks are distributed on the surfaces of the arc block A and the arc block B, an adjustment block is arranged at one end of the fixed block, and the surfaces of the adjustment block are rotatably connected with an upper roller and a lower roller, respectively. The present invention solves the problem that the existing mechanical tree whitening device is not flexible and the angle of the spray head is inconvenient to adjust following the curved path of the tree trunk.

Description

Technical Field

[0001] The invention relates to the field of tree whitewashing, in particular to a mechanical tree whitewashing device for forestry. Background Art

[0002] Whitewashing of forestry trees is a traditional and widely used management measure, which is particularly important in horticulture and forestry production. The main purpose of whitewashing is to protect trees from pests and diseases, frost damage, sunburn, etc., and to improve their growth and survival rate. With the advancement of forestry machinery, tree whitewashing now mostly uses mechanical whitewashing devices instead of manual whitewashing.

[0003] At present, the existing mechanical spray whitening devices are mostly used for spraying on tree trunks, and are usually set to a circular or semi-circular type. They have a good spraying effect on most straight tree trunks. However, when whitening trees with relatively curved trunks, it is often necessary to adjust the spraying position due to changes in the trunk position, which is time-consuming and labor-intensive. Moreover, due to the bending and inclination of the trunk, although the spraying position is adjusted, the spraying angle is not adjusted to follow the inclined trunk. The original horizontal spraying angle is not conducive to effective coverage of the inclined trunk surface, resulting in uneven spraying on the trunk surface, which is not conducive to improving the efficiency of tree whitening. Summary of the invention

[0004] In view of the problems existing in the above background technology, the present invention is proposed.

[0005] Therefore, an object of the present invention is to provide a mechanical tree whitening device for forestry.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising a bottom plate, a liquid tank arranged on the bottom plate for storing whitening liquid, an arc block A and an arc block B for surrounding the trees to be whitened, wherein the bottom plate is connected to the arc block A through a multi-axis adjustment mechanism;

[0007] The arc block A and the arc block B are both semicircular, and the two are connected by a snap-fit ​​mechanism. The arc block A and the arc block B can be spliced ​​together to form a circle through the snap-fit ​​mechanism, and then put around the tree to be painted;

[0008] A spraying mechanism is installed on the surface of the arc block A and the arc block B. The spraying mechanism includes a plurality of fixed blocks, and the plurality of fixed blocks are distributed on the surface of the arc block A and the arc block B. An adjusting block is provided at one end of the fixed block. The upper roller and the lower roller are rotatably connected to the surface of the adjusting block. A spraying block for spraying white liquid is provided between the upper roller and the lower roller on the surface of the adjusting block. A plurality of main nozzles are provided on the surface of the spraying block. A connecting block is provided between the fixed block and the adjusting block. The adjusting block is slidably connected inside the connecting block.

[0009] It also includes a positioning mechanism for moving according to the extension direction of the trunk, which is arranged on the top of the arc block A and the arc block B, and the positioning mechanism is electrically connected to the multi-axis adjustment mechanism.

[0010] As a preferred solution of a mechanical tree whitening device for forestry of the present invention, the positioning mechanism includes a positioning plate A and a positioning plate B, the positioning plate A and the positioning plate B are respectively arranged on the top of the surface of the arc block A and the arc block B, and can be spliced ​​into a circle, the surfaces of the positioning plate A and the positioning plate B are rotatably connected with a plurality of contact wheels, the surfaces of the arc block A and the arc block B are fixedly connected with a plurality of limit blocks, the positioning plate A and the positioning plate B are both slidably connected in the limit blocks, the positioning plate A and the positioning plate B are respectively connected to the arc block A and the arc block B through a plurality of spring rods, and the surface of the positioning plate A is installed with a displacement sensor.

[0011] As a preferred embodiment of the mechanical tree whitewashing device for forestry of the present invention, the opposite sides of the positioning plate A and the positioning plate B are provided with magnetic blocks with different magnetic poles, and when the magnetic blocks are attracted to each other, the positioning plate A and the positioning plate B are spliced ​​together into a circle.

[0012] As a preferred solution of the forestry mechanical tree whitening device of the present invention, the multi-axis adjustment mechanism includes a support block fixedly connected to the surface of the base plate, a cross rail is slidably connected in the support block, and the inner wall of the support block is rotatably connected with synchronous shafts near the upper and lower ends, a synchronous belt is transmitted between the two synchronous shafts, and the synchronous belt is fixedly connected to the cross rail, a motor A is fixedly connected to one side of the support block, and the output end of the motor A is fixedly connected to one of the synchronous shafts, a motor B is fixedly connected in the cross rail, and a screw A is fixedly connected to the output end of the motor B, a slider is slidably connected in the cross rail, and the slider is threadedly connected to the screw A, a longitudinal rail is provided at the lower end of the cross rail, and the lower end of the slider is slidably connected in the longitudinal rail, a motor C is fixedly connected in the longitudinal rail, and a screw B is fixedly connected to the output end of the motor C, and the screw B is threadedly connected to the slider, and the longitudinal rail is fixedly connected to the arc block A.

[0013] As a preferred solution of the mechanical tree whitening device for forestry of the present invention, a reflective target block adapted to the displacement sensor is fixedly connected to the surface of the longitudinal rail.

[0014] As a preferred solution of the mechanical tree whitening device for forestry of the present invention, two movable rods are inserted into the fixed block, the movable rods are connected to the fixed block through a compression spring, and the movable rods are fixedly connected to the connecting block.

[0015] As a preferred embodiment of the present invention, a mechanical tree whitening device for forestry use, wherein: it also includes an auxiliary mechanism, which is arranged in the adjusting block, and the auxiliary mechanism includes a sleeve block which is sleeved on the surface of the spraying block, and the surface of the spraying block is also provided with a plurality of auxiliary nozzles, and a sealing gasket is provided on the inner wall of the sleeve block near the auxiliary nozzle. When the sleeve block is sleeved on the surface of the spraying block, the auxiliary nozzle is blocked and will not spray out the whitening liquid, and the sleeve block is connected to the fixed block by a pull rope, and the pull rope passes through the movable rod, the connecting block and the adjusting block respectively.

[0016] As a preferred solution of the mechanical tree whitening device for forestry of the present invention, the sleeve block is connected to the spray block through a tension spring, and the spray block is fixedly connected in the adjustment block.

[0017] As a preferred solution of the mechanical tree whitening device for forestry of the present invention, the spray block is connected to the liquid medicine tank through a liquid infusion tube.

[0018] As a preferred solution of a mechanical tree whitening device for forestry of the present invention, the locking mechanism includes positioning blocks fixedly connected to both ends of arc block A, and locking blocks fixedly connected to both ends of arc block B, and the locking blocks are adapted to the positioning blocks.

[0019] The beneficial effects of the mechanical tree whitening device for forestry of the present invention are as follows: the present invention provides a positioning plate A and a positioning plate B, which are in contact with the tree trunk through a plurality of contact wheels. During the process of spraying the whitening liquid and moving upward, the position can be adjusted in real time according to the bending shape and orientation of the tree trunk, and the displacement sensor can sense in real time, so that the multi-axis adjustment mechanism can adjust the position of the arc block A and the arc block B being sprayed in real time, thereby reducing manual adjustment and improving the flexibility of the entire device;

[0020] The present invention arranges the main nozzle between the upper and lower rollers, makes the two rollers in real-time contact with the tree trunk, and adjusts the angle of the main nozzle according to the shape of the tree trunk, so as to better adapt to the surface shapes of different trees and improve the uniformity of spraying coverage;

[0021] The present invention provides a cover block that wraps the spray block. When encountering situations such as depressions on the surface of trees or damaged holes caused by insect diseases, the main nozzle extends into the hole accordingly, and the cover block moves backward from the surface of the spray block, exposing auxiliary nozzles with different spraying directions, thereby facilitating comprehensive whitewashing of insect pests and damaged areas in the hole, thereby improving the whitewashing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of a mechanical tree whitening device for forestry;

[0024] Figure 2 A schematic diagram for separately showing a multi-axis adjustment mechanism in a mechanical tree whitening device for forestry;

[0025] Figure 3 A schematic diagram for showing a locking mechanism in a mechanical tree whitening device for forestry;

[0026] Figure 4 A schematic diagram for showing the positional relationship between the arc block A and the positioning plate A in a mechanical tree whitening device for forestry;

[0027] Figure 5 A schematic diagram for showing an adjusting block and its surrounding structures in a mechanical tree whitening device for forestry;

[0028] Figure 6 A cross-sectional view showing the internal structure of a fixing block in a mechanical tree whitening device for forestry;

[0029] Figure 7 A cross-sectional view showing the internal structure of a set of blocks in a mechanical tree whitening device for forestry;

[0030] Figure 8 The present invention is a schematic diagram for showing the tilting state of an adjusting block in a mechanical tree whitening device for forestry.

[0031] In the figure: 1, bottom plate; 11, liquid medicine tank; 2, support block; 21, motor A; 211, synchronous shaft; 212, synchronous belt; 22, horizontal rail; 221, motor B; 222, screw A; 223, slider; 23, longitudinal rail; 231, motor C; 232, screw B; 3, arc block A; 31, arc block B; 311, positioning block; 312, clamping block; 32, fixed block; 321, movable rod; 322, connecting rod Block; 323, extrusion spring; 33, adjustment block; 331, upper roller; 332, lower roller; 34, spray block; 341, main nozzle; 342, auxiliary nozzle; 343, infusion tube; 35, sleeve block; 351, sealing gasket; 352, tension spring; 353, pull rope; 4, positioning plate A; 41, positioning plate B; 42, contact wheel; 43, limit block; 44, spring rod; 45, displacement sensor; 451, reflection target block. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0033] Example 1, reference Figure 1 As shown, an embodiment of the present invention is provided, which provides a mechanical tree whitening device for forestry, comprising a base plate 1, a liquid medicine tank 11 arranged on the base plate 1 for storing whitening liquid, an arc block A3 and an arc block B31 for surrounding the trees to be whitened, wherein the base plate 1 is connected to the arc block A3 via a multi-axis adjustment mechanism, wherein a universal wheel or an electric drive wheel can be installed at the bottom of the base plate 1 to facilitate the movement of the base plate 1 and the switching between multiple trees, and the liquid medicine tank 11 is used to store the whitening liquid. Usually, the formula of the whitening liquid includes quicklime, sulfur, salt, etc., which are mixed and prepared in a certain proportion. During the preparation, it is necessary to fully stir to make the whitening agent uniform. The quicklime needs to be fully dissolved, otherwise it is easy to cause burns after being applied to the branches of the trees. The whitening liquid after being stirred evenly is put into the liquid medicine tank 11 for standby use.

[0034] The arc block A3 and the arc block B31 are both semicircular in shape and are connected by a snap-fit ​​mechanism. The arc block A3 and the arc block B31 can be spliced ​​together to form a circle and put around the tree to be painted. The arc block A3 and the arc block B31 are both semicircular in shape and are not connected under normal conditions. When the tree trunk needs to be whitewashed, the arc block A3 and the arc block B31 are respectively clamped on both sides of the trunk and connected to each other to surround the trunk.

[0035] Reference Figure 4 and Figure 5 As shown, it also includes a spraying mechanism, which is installed on the surface of the arc block A3 and the arc block B31. The spraying mechanism includes a plurality of fixed blocks 32, and the plurality of fixed blocks 32 are distributed on the surface of the arc block A3 and the arc block B31, and the plurality of fixed blocks 32 are evenly distributed. An adjusting block 33 is provided at one end of the fixed block 32, and the surface of the adjusting block 33 is rotatably connected with an upper roller 331 and a lower roller 332 respectively. A spraying block 34 for spraying white liquid is provided between the upper roller 331 and the lower roller 332 on the surface of the adjusting block 33, and a plurality of main nozzles 341 are provided on the surface of the spraying block 34. A connecting block 322 is provided between the fixed block 32 and the adjusting block 33, and the adjusting block 33 is slidably connected inside the connecting block 322. It also includes a positioning mechanism for moving according to the extension direction of the trunk, which is arranged on the top of the arc block A3 and the arc block B31, and the positioning mechanism is electrically connected to the multi-axis adjustment mechanism.

[0036] Specifically, the connecting block 322 is set to be in an arc shape, and has slide rails at both ends. Both sides of the adjustment block 33 slide in the slide rails through the sliding blocks. The sliding track of the adjustment block 33 is adapted to the arc shape of the connecting block 322. Therefore, when the adjustment block 33 slides up and down in the connecting block 322, the spraying direction of the main nozzle 341 on the surface of the spray block 34 can be adjusted accordingly, and the spraying direction is controlled by the upper roller 331 and the lower roller 332. The two are in contact with the surface of the trunk during whitewashing, and follow the up and down movement of the arc block A3 and the arc block B31 to roll on the surface of the trunk. When the trunk tilts, the upper roller 331 and the lower roller 332 can move in the tilting direction, so that the spraying between the two adjusts the spraying angle of the main nozzle 341 accordingly, so as to achieve a real-time adjustment effect, and effectively improve the uniformity of spraying on the surface of the trunk during whitewashing.

[0037] Furthermore, the upper roller 331 and the lower roller 332 can be set to different materials. Since the main nozzle 341 is set between the upper roller 331 and the lower roller 332, one of the upper roller 331 and the lower roller 332 will not contact the whitewashing liquid during the whitewashing process, while the other will contact the whitewashing liquid. It should be clear that the whitewashing process is mostly sprayed from bottom to top. Therefore, during the whitewashing process, the upper roller 331 contacts the surface of the tree trunk that has not been whitewashed, and the lower roller 332 contacts the surface of the tree trunk after whitewashing. The upper roller 331 can be set to a soft brush wheel or a hard brush wheel to facilitate cleaning of the surface of the tree trunk that has not been whitewashed, which is convenient for subsequent whitewashing steps, and the lower roller 332 can be set to a relatively soft material such as a foam wheel or a hard sponge wheel, and has the effect of grinding dry the whitewashing liquid and improving the degree of adhesion, effectively reducing the falling of subsequent whitewashing paint.

[0038] Reference Figure 4 As shown, in this embodiment, the positioning mechanism includes a positioning plate A4 and a positioning plate B41, which are respectively arranged on the top of the surface of the arc block A3 and the arc block B31, and can be spliced ​​together to form a circle, and the shape and size of the positioning plate A4 and the positioning plate B41 are equivalent to the shape and size of the arc block A3 and the arc block B31. The surface of the positioning plate A4 and the positioning plate B41 is rotatably connected with a plurality of contact wheels 42, which are used to contact the surface of the trunk and can be set to rubber wheels or foam wheels, etc. To avoid damaging the tree trunk, the surfaces of the arc blocks A3 and B31 are fixedly connected with a plurality of limit blocks 43, and the positioning plates A4 and B41 are both slidably connected in the limit blocks 43. The positioning plates A4 and B41 slide horizontally in the limit blocks 43, so the positioning plates A4 and B41 can only move horizontally. The positioning plates A4 and B41 are respectively connected to the arc blocks A3 and B31 through a plurality of spring rods 44, and a displacement sensor 45 is installed on the surface of the positioning plate A4.

[0039] Specifically, by splicing and sleeved the positioning plate A4 and the positioning plate B41 on the surface of the tree trunk, and the two are located above the arc block A3 and the arc block B31, when whitewashing and moving upward, the positioning plate A4 and the positioning plate B41 are first moved on the surface of the tree trunk through the contact wheel 42, and the bending and deformation of the tree trunk can be sensed in time. Since the arc block A3 and the arc block B31 are in a vertical upward state, the bending and deformation of the trunk can apply a lateral thrust to the contact wheel 42, and the positioning plate A4 and the positioning plate B41 follow the lateral thrust to move horizontally, prompting the displacement sensor 45 to sense the displacement angle and displacement distance, and through the multi-axis adjustment mechanism, the lower arc block A3 and the arc block B31 are displaced toward the displacement angle and the corresponding distance, following the continuous upward movement, so as to achieve the effect of real-time adjustment of the spraying position, which is convenient for adapting to the whitewashing operation of the crooked, bent or deformed parts of the tree trunk.

[0040] Furthermore, magnetic blocks with different magnetic poles are provided on the opposite sides of the positioning plate A4 and the positioning plate B41. When the magnetic blocks are adsorbed on each other, the positioning plate A4 and the positioning plate B41 are spliced ​​together to form a circle. Through the setting of the magnetic blocks, the positioning plate A4 and the positioning plate B41 can be conveniently spliced. First, the positioning plate A4 is stuck on one side of the trunk surface, and then the independently set positioning plate B41 can be connected to the surface of the positioning plate A4 by adsorption of the magnetic blocks, forming a ring-shaped state surrounding the trunk.

[0041] Reference Figure 1 , Figure 2 As shown, in this embodiment, the multi-axis adjustment mechanism includes a support block 2 fixedly connected to the surface of the base plate 1, a cross rail 22 is slidably connected inside the support block 2, a synchronous shaft 211 is rotatably connected to the inner wall of the support block 2 near the upper and lower ends, a synchronous belt 212 is transmitted between the two synchronous shafts 211, and the synchronous belt 212 is fixedly connected to the cross rail 22, a motor A21 is fixedly connected to one side of the support block 2, and the output end of the motor A21 is fixedly connected to one of the synchronous shafts 211, and the motor A21 is fixedly connected inside the cross rail 22. B221, the output end of the motor B221 is fixedly connected with a screw A222, a slider 223 is slidably connected in the transverse rail 22, the slider 223 is threadedly connected to the screw A222, a longitudinal rail 23 is arranged at the lower end of the transverse rail 22, the lower end of the slider 223 is slidably connected in the longitudinal rail 23, a motor C231 is fixedly connected in the longitudinal rail 23, a screw B232 is fixedly connected to the output end of the motor C231, the screw B232 is threadedly connected to the slider 223, and the longitudinal rail 23 is fixedly connected to the arc block A3.

[0042] Specifically, through the rotation of motor A21, the synchronous shaft 211 rotates and drives the synchronous belt 212 to transmit, thereby driving the horizontal rail 22 on the surface of the synchronous belt 212 to move up and down, so as to facilitate the whitewashing operation of the tree trunk surface from bottom to top. Furthermore, through the output of motor B221 and motor C231, the screw A222 and the screw B232 can be driven to rotate respectively. The rotation of screw A222 drives the slider 223 and the longitudinal rail 23 to move horizontally, and the rotation of screw B232 drives the longitudinal rail 23 to move longitudinally, thereby achieving the effect of multi-directional adjustment of the arc block A3, improving the horizontal movement flexibility of the arc block A3, and facilitating the adaptation to tree trunks with different deformations and bends.

[0043] A reflective target block 451 adapted to the displacement sensor 45 is fixedly connected to the surface of the longitudinal rail 23, wherein the displacement sensor 45 is a laser sensor, and the reflective target block 451 is arranged below the displacement sensor 45 for receiving the laser emitted by the displacement sensor 45 and reflecting the laser beam to achieve high-precision displacement measurement and improve the displacement detection accuracy.

[0044] Reference Figure 5 , Figure 6 As shown, two movable rods 321 are inserted into the fixed block 32, and the movable rod 321 is connected to the fixed block 32 through an extrusion spring 323. The two ends of the extrusion spring 323 are fixedly connected to the movable rod 321 and the fixed block 32 respectively, and the movable rod 321 is fixedly connected to the connecting block 322. Specifically, through the setting of the extrusion spring 323, its elastic force will push the movable rod 321 to always move in the direction away from the fixed block 32, thereby exerting a certain thrust on the upper roller 331 and the lower roller 332, so that the two are always in contact with the surface of the trunk.

[0045] Further, see Figure 6 and Figure 7 As shown, it also includes an auxiliary mechanism, which is arranged in the adjusting block 33. The auxiliary mechanism includes a sleeve block 35 sleeved on the surface of the spray block 34. The surface of the spray block 34 is also provided with a plurality of auxiliary nozzles 342. The auxiliary nozzles 342 are arranged on both sides of the spray block 34. A sealing gasket 351 is provided on the inner wall of the sleeve block 35 near the auxiliary nozzle 342. The sealing gasket 351 is a rubber pad or a hard sponge pad. When the sleeve block 35 is sleeved on the surface of the spray block 34, the auxiliary nozzle 342 is blocked and will not spray out the whitening liquid. The sleeve block 35 is connected to the fixed block 32 by a pull rope 353, and the pull rope 353 passes through the movable rod 321, the connecting block 322 and the adjusting block 33 respectively.

[0046] Specifically, when holes or depressions appear on the surface of the tree trunk due to insect bites, damage, etc., under the elastic force of the extrusion spring 323, the upper roller 331 will drive the lower roller 332 to move in the direction away from the fixed block 32 and enter the hole or depression. Since the length of the pull rope 353 remains unchanged, at this time, since the adjustment block 33 is away from the pull rope 353, the pull rope 353 will pull the sleeve block 35 in the opposite direction relative to the adjustment block 33, that is, the sleeve block 35 moves backward from the surface of the spray block 34, thereby exposing the auxiliary nozzles 342 on both sides of the spray block 34. Since the auxiliary nozzles 342 are not hindered by the sealing gaskets 351, they will synchronously spray the whitening liquid, and then synchronously spray the inner wall of the hole or depression, so that there is no need to adjust the spraying direction for repeated spraying, thereby improving the uniformity of spraying the whitening liquid on the depressions on the surface of the trunk or inside the holes.

[0047] It is worth noting that a long groove adapted to the pull rope 353 is opened on one side of the adjustment block 33 close to the fixed block 32. The pull rope 353 passes through the long groove, and the long groove is adapted to the sliding distance of the adjustment block 33 in the connecting block 322. In this way, when the adjustment block 33 slides in the connecting block 322, the adjustment block 33 will not interfere with the pull rope 353, thereby affecting the sliding effect of the adjustment block 33.

[0048] The sleeve block 35 is connected to the spray block 34 through a tension spring 352, and the two ends of the tension spring 352 are fixedly connected to the sleeve block 35 and the spray block 34 respectively. The spray block 34 is fixedly connected in the adjustment block 33. When the upper roller 331 and the lower roller 332 drive the spray block 34 to move out of the depression or hole on the surface of the trunk, after the adjustment block 33 is reset, under the pulling force of the tension spring 352, the sleeve block 35 can quickly return to the surface of the spray block 34, and then continue to block the spraying of the auxiliary nozzle 342, without affecting the normal whitewashing operation on the surface of the trunk.

[0049] The spray block 34 is connected to the liquid medicine box 11 through an infusion tube 343 . An infusion pump may be provided in the liquid medicine box 11 . The infusion pump pumps the whitening liquid to the infusion tube 343 , and then inputs the whitening liquid into the spray block 34 and sprays the liquid through the main nozzle 341 .

[0050] Reference Figure 3As shown, in this embodiment, the locking mechanism includes a positioning block 311 fixedly connected to the two ends of the arc block A3, and a locking block 312 fixedly connected to the two ends of the arc block B31, and the locking block 312 is adapted to the positioning block 311. Before performing the tree whitewashing operation, the entire device is placed next to the tree to be whitewashed, and the arc block A3 is first adjusted to be clamped on one side of the root base of the tree through the multi-axis adjustment mechanism, and then the independently set arc block B31 and the positioning plate B41 are spliced ​​at the two ends of the arc block A3, and the locking blocks 312 at the two ends of the arc block B31 are inserted into the positioning blocks 311 at the two ends of the arc block A3, and the positioning plate B41 is fixed to the two ends of the positioning plate A4 by magnetic block adsorption, thereby forming a complete ring, surrounding the entire tree trunk body, and then the whitewashing operation can be performed.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A mechanical tree whitening device for forestry, characterized in that: include: A base plate (1), a liquid tank (11) arranged on the base plate (1) for storing whitening liquid, an arc block A (3) and an arc block B (31) for surrounding a tree to be whitened, wherein the base plate (1) is connected to the arc block A (3) via a multi-axis adjustment mechanism; The arc block A (3) and the arc block B (31) are both semicircular and connected by a snap-fit ​​mechanism. The arc block A (3) and the arc block B (31) can be spliced ​​together to form a circle through the snap-fit ​​mechanism and then put around the tree to be painted. A spraying mechanism is installed on the surfaces of the arc block A (3) and the arc block B (31), the spraying mechanism comprises a plurality of fixed blocks (32), the plurality of fixed blocks (32) are distributed on the surfaces of the arc block A (3) and the arc block B (31), an adjusting block (33) is arranged at one end of the fixed block (32), the surface of the adjusting block (33) is rotatably connected to an upper roller (331) and a lower roller (332), a spraying block (34) for spraying white liquid is arranged between the upper roller (331) and the lower roller (332) on the surface of the adjusting block (33), a plurality of main spray heads (341) are arranged on the surface of the spraying block (34), a connecting block (322) is arranged between the fixed block (32) and the adjusting block (33), and the adjusting block (33) is slidably connected inside the connecting block (322); It also includes a positioning mechanism for moving according to the extension direction of the tree trunk, which is arranged on the top of the arc block A (3) and the arc block B (31), and the positioning mechanism is electrically connected to the multi-axis adjustment mechanism; Two movable rods (321) are inserted into the fixed block (32), the movable rods (321) are connected to the fixed block (32) via a compression spring (323), and the movable rods (321) are fixedly connected to the connecting block (322); The auxiliary mechanism also includes an auxiliary mechanism, which is arranged in the adjusting block (33). The auxiliary mechanism includes a sleeve block (35) sleeved on the surface of the spraying block (34). The surface of the spraying block (34) is also provided with a plurality of auxiliary nozzles (342). A sealing gasket (351) is provided on the inner wall of the sleeve block (35) near the auxiliary nozzles (342). When the sleeve block (35) is sleeved on the surface of the spraying block (34), the auxiliary nozzles (342) are blocked and will not spray out the whitening liquid. The sleeve block (35) is connected to the fixed block (32) by a pull rope (353). The pull rope (353) passes through the movable rod (321), the connecting block (322) and the adjusting block (33) respectively.

2. A mechanical tree whitening device for forestry as claimed in claim 1, characterized in that: The positioning mechanism comprises a positioning plate A (4) and a positioning plate B (41), wherein the positioning plate A (4) and the positioning plate B (41) are respectively arranged on the top of the surface of the arc block A (3) and the arc block B (31) and can be spliced ​​together to form a circle, wherein the surfaces of the positioning plate A (4) and the positioning plate B (41) are rotatably connected with a plurality of contact wheels (42), and the surfaces of the arc block A (3) and the arc block B (31) are fixedly connected with a plurality of limit blocks (43), wherein the positioning plate A (4) and the positioning plate B (41) are both slidably connected in the limit blocks (43), wherein the positioning plate A (4) and the positioning plate B (41) are respectively connected with the arc block A (3) and the arc block B (31) through a plurality of spring rods (44), and a displacement sensor (45) is installed on the surface of the positioning plate A (4).

3. A mechanical tree whitening device for forestry as claimed in claim 2, characterized in that: Magnetic blocks with different magnetic poles are arranged on opposite sides of the positioning plate A (4) and the positioning plate B (41). When the magnetic blocks are attracted to each other, the positioning plate A (4) and the positioning plate B (41) are spliced ​​together to form a circle.

4. A mechanical tree whitening device for forestry as claimed in claim 3, characterized in that: The multi-axis adjustment mechanism comprises a support block (2) fixedly connected to the surface of a base plate (1), a cross rail (22) being slidably connected inside the support block (2), a synchronous shaft (211) being rotatably connected to the inner wall of the support block (2) near the upper and lower ends, a synchronous belt (212) being transmitted between the two synchronous shafts (211), the synchronous belt (212) being fixedly connected to the cross rail (22), a motor A (21) being fixedly connected to one side of the support block (2), the output end of the motor A (21) being fixedly connected to one of the synchronous shafts (211), a motor B (221) being fixedly connected inside the cross rail (22), and the The output end of the motor B (221) is fixedly connected with a screw rod A (222), a slider (223) is slidably connected in the transverse rail (22), the slider (223) is threadedly connected to the screw rod A (222), a longitudinal rail (23) is arranged at the lower end of the transverse rail (22), the lower end of the slider (223) is slidably connected in the longitudinal rail (23), a motor C (231) is fixedly connected in the longitudinal rail (23), the output end of the motor C (231) is fixedly connected with a screw rod B (232), the screw rod B (232) is threadedly connected to the slider (223), and the longitudinal rail (23) is fixedly connected to the arc block A (3).

5. A mechanical tree whitening device for forestry as claimed in claim 4, characterized in that: A reflective target block (451) adapted to the displacement sensor (45) is fixedly connected to the surface of the longitudinal rail (23).

6. A mechanical tree whitening device for forestry as claimed in claim 5, characterized in that: The sleeve block (35) is connected to the spray block (34) via a tension spring (352), and the spray block (34) is fixedly connected in the adjustment block (33).

7. A mechanical tree whitening device for forestry as claimed in claim 6, characterized in that: The spray block (34) is connected to the liquid medicine box (11) via a liquid infusion tube (343).

8. A mechanical tree whitening device for forestry as claimed in claim 7, characterized in that: The locking mechanism comprises positioning blocks (311) fixedly connected to the two ends of the arc block A (3), and locking blocks (312) fixedly connected to the two ends of the arc block B (31), wherein the locking blocks (312) are adapted to the positioning blocks (311).

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