CN112676097A - Tree maintenance device for municipal engineering and use method thereof - Google Patents
Tree maintenance device for municipal engineering and use method thereof Download PDFInfo
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- CN112676097A CN112676097A CN202011350058.0A CN202011350058A CN112676097A CN 112676097 A CN112676097 A CN 112676097A CN 202011350058 A CN202011350058 A CN 202011350058A CN 112676097 A CN112676097 A CN 112676097A
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Abstract
The invention discloses a tree maintenance device for municipal engineering and a using method thereof. The invention belongs to the technical field of tree maintenance, and particularly relates to a tree maintenance device for municipal engineering, which can automatically stir a coating, prevent the coating from precipitating, automatically control the coating direction, and has good and uniform coating effect.
Description
Technical Field
The invention belongs to the technical field of tree maintenance, and particularly relates to a tree maintenance device for municipal engineering and a using method thereof.
Background
And (4) tree maintenance, namely, the late watering, trimming, weeding, pesticide spraying, seedling supplementing and other works of the planting work are completed. The garden maintenance work is not well done, the garden landscape built with large flowers cannot be well maintained, and some gardens are quickly deteriorated, trees die and weeds grow. Therefore, scientific and standardized scientific maintenance management is required for landscape maintenance. The trunk whitewashing indicates that the trunk has been brushed one deck white liquid by the workman, belong to an important ring in the gardens maintenance work, can make the trunk heat absorption reduce, the trunk just can not be because of the huge frost crack of the difference in temperature round the clock, simultaneously also have the effect of disinfecting and protection against insects, current trunk whitewashing work is full manual construction, the tree maintenance cost has been increased, need the manual work to stir the whitewashing ground paste that stirs many times and prevent to deposit, the unable whitewashing difficulty in the higher position of tree, whitewashing ground paste can cause the harm to the human body when whitewashing the tree, it is not good to the tree whitewashing effect. Therefore, the tree maintenance device for municipal engineering, provided by the invention, can automatically stir the coating, prevent the coating from precipitating, automatically control the painting direction, and has a good and uniform painting effect.
Disclosure of Invention
In order to solve the problems, the invention provides the tree maintenance device for the municipal engineering, which can automatically stir the coating, prevent the coating from precipitating, is convenient to move and fix, can automatically control the coating direction, and has good and uniform coating effect.
In order to realize the functions, the technical scheme adopted by the invention is as follows: a tree maintenance device for municipal engineering comprises a base, moving wheels, a supporting cylinder, a supporting chassis, fixing columns, a material mixing device, a coating device and a feeding device, wherein the moving wheels are uniformly arranged under the base, the moving device is convenient to move, the friction force in the moving process is reduced, the supporting cylinder is uniformly arranged on two outer side walls of the base, the supporting chassis is arranged under the supporting cylinder, the supporting cylinder can control the supporting chassis to extend, so that the moving wheels lift off the ground, the supporting chassis fixedly supports the device, the fixing columns are arranged at the end part of the top wall of the base and play a role of fixing and supporting, the stability of the device is improved, the material mixing device is arranged on the base and uniformly stirs the coating to prevent the coating from precipitating, the coating device is arranged on the fixing columns, can automatically coat the trunk, is convenient for adjusting the coating direction and uniformly coat, and the feeding device, the automatic feeding can be carried out on the coating device, and the working efficiency is high; the coating device comprises a motor shell, a driving motor, a fixed block, a lead screw pair, a linking block, a supporting plate, a telescopic hydraulic machine, a hinged support, a coating plate, a linking shaft and a coating layer, wherein the motor shell is arranged below the top wall of a base, the driving motor is arranged in the motor shell, the output end of the driving motor penetrates through the top wall of the motor shell, the top wall of the base and the bottom wall of a fixed column, the fixed block is arranged below the top wall of the fixed column, one end of the lead screw is connected with the output end of the driving motor, the other end of the lead screw is rotatably arranged on the fixed block, the lead screw pair is sleeved on the lead screw, the linking block penetrates through the side wall of the fixed column and is arranged on the lead screw pair, the supporting plate is arranged at one end of the linking block, which is far away from, the painting plate is characterized in that the central line of the supporting plate is used as two groups of symmetrical shafts, the painting plate is arranged in an inward concave arc structure, one end of the interlocking shaft is hinged to the hinged support, the other end of the interlocking shaft is hinged to the painting plate, the painting layer is arranged on the inner side wall of the painting plate, the driving motor drives the lead screw to rotate, the rotary motion of the lead screw is converted into linear reciprocating motion by the lead screw pair, the supporting plate is driven to move by the lead screw pair through the connecting block, the painting plate on the supporting plate moves along with the connecting block, the painting height is convenient to control, the telescopic hydraulic press stretches out and draws back to drive the painting plates on two sides to open and close through the interlocking shaft, the opening and closing sizes of the painting plates on two sides can be freely adjusted according to the size of the.
Further, the mixing device comprises a lifting cylinder, a coating bin, a feeding port, a protective shell, a rotating motor, an electric telescopic rod and stirring blades, wherein the lifting cylinder is arranged on the base, the two groups of lifting cylinders are arranged, two side walls of the coating bin are hinged to the output end of the lifting cylinder, the feeding port is arranged on the top wall of the coating bin, so that the coating can be poured into the coating bin conveniently, the protective shell is arranged below the bottom wall of the coating bin, the rotating motor is arranged in the protective shell, the output end of the rotating motor penetrates through the top wall of the protective shell and the bottom wall of the coating bin, the electric telescopic rod is connected to the output end of the rotating motor, the stirring blades are arranged at the end part of the electric telescopic rod, the rotating motor drives the stirring blades to rotate through the electric telescopic rod, so that the coating in the coating bin, more abundant even stirring, the lift cylinder control of both sides scribbles the lift of feed bin asynchronism simultaneously to rocking scribbles the feed bin, make the even abundant compounding more of coating in the feed bin of scribbling, prevent that coating from deposiing, cause to apply paint unevenly with a brush.
Further, feedway includes micropump, pumping pipe and row's material pipe, the micropump is located on the base, on the micropump was located to pumping pipe one end, the pumping pipe other end ran through the setting of scribbling feed bin diapire, arrange material pipe one end and locate on the micropump, arrange the material pipe other end and connect in the coating layer, the coating in the micropump accessible pumping pipe will scribble the feed bin is taken out, arranges the dope layer through arranging the material pipe on, is convenient for carry out the feed to the dope layer.
Furthermore, one of the ends of the base far away from the fixing column is provided with a supporting column, the supporting column is provided with a handle, so that the base is convenient for constructors to operate, and the base is pushed by the handle pushing device.
Furthermore, the pumping pipe is arranged in a threaded structure, and the lifting cylinders on the two sides control the coating bins to lift at different times, so that when the coating bins are shaken, the pumping pipe can stretch freely without affecting the shaking of the coating bins.
Further, arrange the material pipe and set up for the helicitic texture, when applying paint the layer and go up and down with a brush, arrange the material pipe and can freely stretch out and draw back, do not influence the lift of dope layer.
Furthermore, the coating layer is made of sponge materials, a small amount of coating can be stored, and when the material is supplied by the discharge pipe, the ductility of the sponge is good, so that the coating can be uniformly distributed on the coating layer.
Furthermore, the driving motor is a servo motor, so that the direction is convenient to control.
The invention also discloses a using method of the tree maintenance device for municipal engineering, which comprises the following steps:
1) a constructor holds the handle by hand, moves the device to a position convenient for coating through the moving wheel, starts the supporting cylinder, and controls the supporting chassis to extend to enable the moving wheel to lift off the ground, so as to support the device;
2) the method comprises the following steps that constructors pour coating into a coating bin from a feeding hole, start a rotating motor, a lifting cylinder and an electric telescopic rod, the rotating motor drives a stirring blade to rotate through the electric telescopic rod, so that the coating in the coating bin is uniformly stirred, the electric telescopic rod drives the stirring blade to continuously extend and shorten in the coating bin, and meanwhile, the lifting cylinders on two sides control the coating bin to ascend and descend at different times, so that the coating bin is shaken, and the coating in the coating bin is more uniformly and fully mixed;
3) starting the micro pump, wherein the micro pump can pump out the coating in the coating bin through the material pumping pipe and discharge the coating to the coating layer through the material discharging pipe;
4) starting a driving motor, driving the screw rod to rotate by the driving motor, converting the rotary motion of the screw rod into linear reciprocating motion by the screw rod pair, driving the supporting plate to move by the screw rod pair through the connecting block, moving the brushing plate on the supporting plate along with the connecting block, and adjusting the brushing plate to a proper brushing height;
5) the telescopic hydraulic machine is started, the telescopic hydraulic machine stretches out and draws back to drive the two sides through the linkage shaft to brush the opening and closing of the boards, the boards are adjusted to be suitable for the size of the trunk, the painting layer paints the trunk, and the direction of a constructor is adjusted as required.
The invention adopts the structure to obtain the following beneficial effects: the invention provides a tree maintenance device for municipal engineering and a using method thereof, wherein the support cylinder and the support chassis are arranged, the support cylinder can control the extension of the support chassis so as to lift off a movable wheel, the support chassis fixedly supports the device, a drive motor drives a lead screw to rotate through the arrangement of a coating device, a lead screw pair converts the rotary motion of the lead screw into linear reciprocating motion, so that the lead screw pair drives a support plate to move through a connecting block, a painting plate on the support plate moves along with the connecting block so as to control the painting height conveniently, a telescopic hydraulic machine is telescopic to drive the painting plates on two sides to open and close through a coupling shaft, the opening and closing sizes of the painting plates on two sides can be freely adjusted according to the size of a trunk so as to adjust the size of the trunk to be suitable for the trunk size, the painting layer is convenient to paint the trunk, and a rotary motor drives stirring blades to, thereby paint to scribbling in the feed bin evenly stirs, electric telescopic handle drive stirring leaf constantly extends in the coating storehouse and shortens, more abundant even stirring, the lift of feed bin asynchronism is scribbled in the lift cylinder control of both sides simultaneously, thereby rock and scribble the feed bin, make the even abundant compounding more of coating in the feed bin scribbled, prevent that coating from deposiing, it is inhomogeneous to cause to apply paint with a brush, setting through feedway, micropump accessible drawing pipe will scribble the coating in the feed bin and take out, arrange to the dope layer through row material pipe on, be convenient for carry out the feed to the dope layer.
Drawings
FIG. 1 is an overall view of a tree maintenance device for municipal works and a method for using the same according to the present invention;
FIG. 2 is a top view of a coating apparatus for a tree care system and method of use for municipal works according to the invention;
fig. 3 is a schematic structural view of a tree maintenance device for municipal engineering and a mixing device using the tree maintenance device.
The automatic coating machine comprises a base 1, a base 2, a moving wheel 3, a supporting cylinder 4, a supporting chassis 5, a fixed column 6, a mixing device 7, a coating device 8, a feeding device 9, a motor shell 10, a driving motor 11, a fixed block 12, a lead screw 13, a lead screw pair 14, a connecting block 15, a supporting plate 16, a telescopic hydraulic machine 17, a hinged support 18, a coating plate 19, a linkage shaft 20, a coating layer 21, a lifting cylinder 22, a coating bin 23, a feeding port 24, a protective shell 25, a rotating motor 26, an electric telescopic rod 27, a stirring blade 28, a micropump 29, a material pumping pipe 30, a material discharging pipe 31, a support column 32 and a handle.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1-3, the tree maintenance device for municipal engineering of the invention comprises a base 1, moving wheels 2, supporting cylinders 3, supporting chassis 4, fixed columns 5, a mixing device 6, a coating device 7 and a feeding device 8, wherein the moving wheels 2 are uniformly arranged under the base 1, the supporting cylinders 3 are uniformly arranged on two outer side walls of the base 1, the supporting chassis 4 is arranged under the supporting cylinders 3, the fixed columns 5 are arranged at the top wall end part of the base 1, the mixing device 6 is arranged on the base 1, the coating device 7 is arranged on the fixed columns 5, and the feeding device 8 is arranged on the base 1; the coating device 7 comprises a motor shell 9, a driving motor 10, a fixed block 11, a screw rod 12, a screw rod pair 13, a connecting block 14, a supporting plate 15, a telescopic hydraulic machine 16, a hinged support 17, a coating plate 18, a linkage shaft 19 and a coating layer 20, wherein the motor shell 9 is arranged below the top wall of a base 1, the driving motor 10 is arranged in the motor shell 9, the output end of the driving motor 10 penetrates through the top wall of the motor shell 9, the top wall of the base 1 and the bottom wall of a fixed column 5, the fixed block 11 is arranged below the top wall of the fixed column 5, one end of the screw rod 12 is connected with the output end of the driving motor 10, the other end of the screw rod 12 is rotatably arranged on the fixed block 11, the screw rod pair 13 is sleeved on the screw rod 12, the connecting block 14 penetrates through the side wall of the fixed column 5 and is arranged on the screw rod pair 13, the supporting plate 15 is, the hinged support 17 is arranged at the output end of the telescopic hydraulic press 16, the end parts of the brushing plates 18 are hinged on the side walls of the support plate 15, the brushing plates 18 are arranged in two groups by taking the central line of the support plate 15 as a symmetrical shaft, the brushing plates 18 are arranged in an inwards concave arc structure, one end of a linkage shaft 19 is hinged on the hinged support 17, the other end of the linkage shaft 19 is hinged on the brushing plates 18, and the brushing layer 20 is arranged on the inner side walls of the brushing plates 18.
The feeding device 8 comprises a micro pump 28, a pumping pipe 29 and a discharging pipe 30, the micro pump 28 is arranged on the base 1, one end of the pumping pipe 29 is arranged on the micro pump 28, the other end of the pumping pipe 29 penetrates through the bottom wall of the coating bin 22, one end of the discharging pipe 30 is arranged on the micro pump 28, and the other end of the discharging pipe 30 is connected to the coating layer 20.
The end of the base 1, which is far away from the fixed column 5, is provided with a support column 31, and the support column 31 is provided with a handle 32.
The material pumping pipe 29 is arranged in a threaded structure.
The discharge pipe 30 is provided with a thread structure.
The brushing layer 20 is made of sponge material.
The driving motor 10 is a servo motor.
The invention also discloses a using method of the tree maintenance device for municipal engineering, which comprises the following steps:
1) a constructor holds the handle 32 by hand, moves the device to a position convenient for coating through the moving wheel 2, starts the supporting cylinder 3, and the supporting cylinder 3 controls the supporting chassis 4 to extend to enable the moving wheel 2 to lift off the ground, thereby supporting the device;
2) the constructor pours the coating into the coating bin 22 from the feeding hole 23, starts the rotating motor 25, the lifting cylinder 21 and the electric telescopic rod 26, the rotating motor 25 drives the stirring blade 27 to rotate through the electric telescopic rod 26, so that the coating in the coating bin 22 is uniformly stirred, the electric telescopic rod 26 drives the stirring blade 27 to continuously extend and shorten in the coating bin 22, and meanwhile, the lifting cylinders 21 on the two sides control the lifting of the coating bin 22 at different times, so that the coating bin 22 is shaken, and the coating in the coating bin 22 is more uniformly and fully mixed;
3) starting the micro pump 28, the micro pump 28 can pump out the coating in the coating bin 22 through the pumping pipe 29, and the coating is discharged onto the coating layer through the discharging pipe 30;
4) starting the driving motor 10, driving the screw 12 to rotate by the driving motor 10, converting the rotary motion of the screw 12 into linear reciprocating motion by the screw pair 13, so that the screw pair 13 drives the supporting plate 15 to move through the connecting block 14, moving the brushing plate 18 on the supporting plate 15 along with the connecting block, and adjusting the brushing plate 18 to a proper brushing height;
5) the telescopic hydraulic machine 16 is started, the telescopic hydraulic machine 16 is telescopic to drive the two side painting plates 18 to be opened and closed through the linkage shaft 19, the size of the two side painting plates is adjusted to be suitable for the size of a trunk, the painting layer 20 is used for painting the trunk, and a constructor adjusts the direction as required.
When the paint stirring device is used specifically, a constructor holds the handle 32 by hand, the device is moved to a position where the paint is convenient by moving the wheel 2, the supporting cylinder 3 is started, the supporting cylinder 3 controls the supporting chassis 4 to extend, so that the moving wheel 2 is lifted off, the device is supported, the paint is poured into the paint cabin 22 from the feeding hole 23, the rotating motor 25, the lifting cylinder 21 and the electric telescopic rod 26 are started, the rotating motor 25 drives the stirring blade 27 to rotate through the electric telescopic rod 26, so that the paint in the paint cabin 22 is uniformly stirred, the electric telescopic rod 26 drives the stirring blade 27 to extend and shorten in the paint cabin 22 continuously, the lifting cylinders 21 on two sides control the lifting of the paint cabin 22 at different times, so that the paint cabin 22 is shaken, the paint in the paint cabin 22 is more uniformly and sufficiently mixed, the micro pump 28 is started, the micro pump 28 can pump the paint in the paint cabin 22 through the material pumping pipe 29, the coating layer is discharged through a discharging pipe 30, a driving motor 10 is started, the driving motor 10 drives a lead screw 12 to rotate, a rotary motion of the lead screw 12 is converted into a linear reciprocating motion through a lead screw pair 13, the lead screw pair 13 drives a support plate 15 to move through a connecting block 14, a painting plate 18 on the support plate 15 moves along with the connecting block, the painting plate 18 is adjusted to a proper painting height, a telescopic hydraulic machine 16 is started, the telescopic hydraulic machine 16 stretches and retracts to drive the painting plates 18 on two sides to open and close through a linkage shaft 19, the painting plates are adjusted to be suitable for the size of a trunk, the trunk is painted by a painting layer 20, and a constructor can evenly paint the trunk in a direction according to needs by adjusting according to the principle.
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. The utility model provides a trees curing means that municipal works were used which characterized in that: the automatic feeding device comprises a base, moving wheels, supporting cylinders, a supporting chassis, fixing columns, a material mixing device, a coating device and a feeding device, wherein the moving wheels are uniformly arranged below the base; the coating device comprises a motor shell, a driving motor, a fixed block, a lead screw pair, a linking block, a supporting plate, a telescopic hydraulic machine, a hinged support, a coating plate, a linking shaft and a coating layer, wherein the motor shell is arranged below the top wall of a base, the driving motor is arranged in the motor shell, the output end of the driving motor penetrates through the top wall of the motor shell, the top wall of the base and the bottom wall of a fixed column, the fixed block is arranged below the top wall of the fixed column, one end of the lead screw is connected with the output end of the driving motor, the other end of the lead screw is rotatably arranged on the fixed block, the lead screw pair is sleeved on the lead screw, the linking block penetrates through the side wall of the fixed column and is arranged on the lead screw pair, the supporting plate is arranged at one end of the linking block, which is far away from, the coating plates are arranged in two groups by taking the center line of the supporting plate as a symmetrical shaft, the coating plates are arranged in an inwards concave arc structure, one end of the linkage shaft is hinged to the hinged support, the other end of the linkage shaft is hinged to the coating plates, and the coating layer is arranged on the inner side wall of the coating plates.
2. The tree maintenance device for municipal works according to claim 1, wherein: the compounding device includes the lift cylinder, scribbles feed bin, feed inlet, protecting sheathing, rotating electrical machines, electric telescopic handle and stirring leaf, the lift cylinder is located on the base, the lift cylinder sets up two sets ofly, it articulates in lift cylinder output to scribble feed bin both sides wall, the feed inlet is located and is scribbled on the feed bin roof, protecting sheathing is located and is scribbled under the feed bin diapire, the rotating electrical machines is located in the protecting sheathing, the rotating electrical machines output runs through protecting sheathing roof and the setting of coating storehouse diapire, electric telescopic handle connects in the rotating electrical machines output, electric telescopic rod tip is located to the stirring leaf.
3. The tree maintenance device for municipal works according to claim 2, wherein: the feeding device comprises a micro pump, a pumping pipe and a discharging pipe, the micro pump is arranged on the base, one end of the pumping pipe is arranged on the micro pump, the other end of the pumping pipe penetrates through the bottom wall of the coating bin, one end of the discharging pipe is arranged on the micro pump, and the other end of the discharging pipe is connected to the coating layer.
4. A tree care device for municipal works according to claim 3, wherein: one end of the base, far away from the fixing column, is provided with a supporting column, and the supporting column is provided with a handle.
5. A tree maintenance device for municipal works according to claim 4, wherein: the material pumping pipe is arranged in a threaded structure.
6. A tree care device for municipal works according to claim 5, wherein: the discharge pipe is arranged in a threaded structure.
7. A tree care device for municipal works according to claim 6, wherein: the coating layer is made of sponge materials.
8. A tree care device for municipal works according to claim 7, wherein: the driving motor is a servo motor.
9. A use method of a tree maintenance device for municipal engineering is characterized in that: the method comprises the following steps:
1) a constructor holds the handle by hand, moves the device to a position convenient for coating through the moving wheel, starts the supporting cylinder, and controls the supporting chassis to extend to enable the moving wheel to lift off the ground, so as to support the device;
2) the method comprises the following steps that constructors pour coating into a coating bin from a feeding hole, start a rotating motor, a lifting cylinder and an electric telescopic rod, the rotating motor drives a stirring blade to rotate through the electric telescopic rod, so that the coating in the coating bin is uniformly stirred, the electric telescopic rod drives the stirring blade to continuously extend and shorten in the coating bin, and meanwhile, the lifting cylinders on two sides control the coating bin to ascend and descend at different times, so that the coating bin is shaken, and the coating in the coating bin is more uniformly and fully mixed;
3) starting the micro pump, wherein the micro pump can pump out the coating in the coating bin through the material pumping pipe and discharge the coating to the coating layer through the material discharging pipe;
4) starting a driving motor, driving the screw rod to rotate by the driving motor, converting the rotary motion of the screw rod into linear reciprocating motion by the screw rod pair, driving the supporting plate to move by the screw rod pair through the connecting block, moving the brushing plate on the supporting plate along with the connecting block, and adjusting the brushing plate to a proper brushing height;
5) the telescopic hydraulic machine is started, the telescopic hydraulic machine stretches out and draws back to drive the two sides through the linkage shaft to brush the opening and closing of the boards, the boards are adjusted to be suitable for the size of the trunk, the painting layer paints the trunk, and the direction of a constructor is adjusted as required.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011350058.0A CN112676097A (en) | 2020-11-26 | 2020-11-26 | Tree maintenance device for municipal engineering and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011350058.0A CN112676097A (en) | 2020-11-26 | 2020-11-26 | Tree maintenance device for municipal engineering and use method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112676097A true CN112676097A (en) | 2021-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011350058.0A Pending CN112676097A (en) | 2020-11-26 | 2020-11-26 | Tree maintenance device for municipal engineering and use method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN112676097A (en) |
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| CN114160354A (en) * | 2021-11-09 | 2022-03-11 | 梁文玉 | A portable trees spraying device for afforestation disease and pest control |
| CN114749345A (en) * | 2022-05-18 | 2022-07-15 | 杭州互动乐园文化有限公司 | Coating brushing device for garden tree insect prevention |
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| CN205570704U (en) * | 2016-05-11 | 2016-09-14 | 长春德联化工有限公司 | Gummer |
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Application publication date: 20210420 |
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