CN112119816A - Brushing device for trunk for municipal greening and using method thereof - Google Patents

Brushing device for trunk for municipal greening and using method thereof Download PDF

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Publication number
CN112119816A
CN112119816A CN202010965535.8A CN202010965535A CN112119816A CN 112119816 A CN112119816 A CN 112119816A CN 202010965535 A CN202010965535 A CN 202010965535A CN 112119816 A CN112119816 A CN 112119816A
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China
Prior art keywords
arc
trunk
shaped plate
shaped
plates
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Pending
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CN202010965535.8A
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Chinese (zh)
Inventor
李超
刘安宝
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Ma'anshan Wansen Landscaping Engineering Co ltd
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Ma'anshan Wansen Landscaping Engineering Co ltd
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Priority to CN202010965535.8A priority Critical patent/CN112119816A/en
Publication of CN112119816A publication Critical patent/CN112119816A/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G13/00Protecting plants
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G7/00Botany in general
    • A01G7/06Treatment of growing trees or plants, e.g. for preventing decay of wood, for tingeing flowers or wood, for prolonging the life of plants
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Environmental Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Botany (AREA)
  • Brushes (AREA)

Abstract

The invention discloses a brushing device for a trunk for municipal greening and a use method thereof, and relates to the technical field of municipal greening, and the brushing device comprises two arc-shaped plates and a U-shaped plate, wherein the inner end surfaces of the two arc-shaped plates are respectively provided with a plurality of uniformly distributed brush plates, the inner end surfaces of the brush plates are fixedly provided with a plurality of uniformly distributed brush hairs, and a horizontally arranged rotating rod is rotatably connected between the front inner wall and the rear inner wall of the U-shaped plate. The coating is reduced from dropping on the body of the operator, and the health and safety of the operator are protected.

Description

Brushing device for trunk for municipal greening and using method thereof
Technical Field
The invention relates to the technical field of municipal afforestation, in particular to a brushing device for a trunk for municipal afforestation and a using method thereof.
Background
The construction process, functional requirements and operational purposes of urban afforestation are different from forestry, but are all components of production construction, one is mainly made of materials, and the other is mainly made of environmental protection. Urban landscaping is an investment in the capital of the social environment, and the economic return is multifaceted and quite abundant. The demand of cities for gardens is divided into two aspects: firstly, as an infrastructure; and the other is used as leisure facilities. The former should be given to all citizens by municipalities as a public product, and the latter may be provided to some citizens by legal entities as legal products.
In the process of municipal greening, the trees are usually whited, and the whited trunk means that the trunk is brushed with a layer of white liquid by workers. After the trunk is worn by the white skirt made of lime water, 10% of sunlight can be reflected back, so that heat absorption is reduced, the trunk cannot be frost cracked due to huge temperature difference between day and night, and the functions of sterilization and insect prevention are achieved. In a city, a unique landscape line is adopted, the brushing roller is used in the process of brushing trees, the existing brushing roller is usually cylindrical, so that the brushing efficiency is low, the brushing quality is influenced, and in the process of brushing, the coating is easy to drip on the body of an operator, the skin of the operator is easy to be damaged, and the body health of the operator is influenced.
Therefore, a brushing device for a trunk for municipal greening and a using method thereof are provided.
Disclosure of Invention
1. Problems to be solved
Aiming at the problems in the prior art, the invention aims to provide a brushing device for a trunk for municipal greening and a using method thereof, and solves the problems that the brushing efficiency is low due to the existing brushing roller, the brushing quality is influenced, and in the brushing process, paint is easy to drip on the body of an operator, the skin of the operator is easy to be damaged, and the body health of the operator is influenced.
2. Technical scheme
In order to achieve the purpose, the invention provides the following technical scheme:
a brushing device for a trunk for municipal afforestation and a using method thereof comprise two arc plates and a U-shaped plate, wherein a plurality of brush plates which are uniformly distributed are arranged on the inner end surfaces of the two arc plates, a plurality of brush hairs which are uniformly distributed are fixedly arranged on the inner end surfaces of the brush plates, a horizontally arranged rotating rod is rotatably connected between the front inner wall and the rear inner wall of the U-shaped plate, the bottom end of the arc plate penetrates through the rotating rod and is rotatably connected with the rotating rod, one end of the rotating rod penetrates through the inner wall of the U-shaped plate and is in threaded connection with a knob, the knob is in contact connection with the front end surface of the U-shaped plate, a plurality of water leakage holes which are uniformly distributed are arranged on the lower surface of the U-shaped plate, two dirt receiving boxes which are symmetrically distributed are fixedly connected on the lower surface of the U-shaped plate, the water leakage holes are mutually communicated with the insid, and the fixed surface of U template is connected with the fixed plate of two symmetric distributions, rotates between two fixed plates and is connected with the axis of rotation, is equipped with the turning block in the axis of rotation, and the turning block runs through the axis of rotation and rotates with the axis of rotation to be connected, and the one end of axis of rotation runs through the inner wall and the threaded connection of fixed plate has the turning block, the fixed surface of turning block is connected with the backup pad, and the fixed surface of backup pad is connected with the telescopic link, the bottom fixedly connected with handle.
As a further scheme of the invention: connect dirty case preceding terminal surface to seted up the viewing aperture, fixed and sealing connection has the observation window that matches the setting on the viewing aperture to conveniently observe the liquid storage condition who connects dirty case, convenient timely empting.
As a further scheme of the invention: the brush plate is fixedly connected with the arc plate through the bolt, so that the brush hair is convenient to replace, and the use cost of the device is reduced.
As a further scheme of the invention: the leak protection board of the vertical setting of the equal fixedly connected with in both sides of U template to promote the leak protection effect of device, reduced the drippage of coating, promoted the security performance of device.
As a further scheme of the invention: the lower inner wall fixedly connected with arc limiting plate of two symmetric distributions of U template carries on spacingly through the maximum turned angle of arc limiting plate to the arc plate to protect the U template, promoted its life.
As a further scheme of the invention: the fixed cover in outside of handle is equipped with anti-skidding rubber sleeve to its landing possibility when reducing operating means has promoted the security performance of device.
As a further scheme of the invention: the operation steps are as follows:
firstly, manually rotating the arc-shaped plates to enable the arc-shaped plates to be sleeved on the surface of a trunk when in use, and adjusting the thickness between the two arc-shaped plates to enable bristles on the arc-shaped plates to be tightly attached to the trunk;
secondly, rotating the knob to enable the knob to move towards the arc-shaped plate, moving the knob towards the arc-shaped plate to extrude the U-shaped plate, enabling the surfaces of the extruded U-shaped plate and the arc-shaped plate to be in and out tightly, and finally fixing the arc-shaped plate to enable the thickness degree to be unchanged;
thirdly, adjusting the length of the telescopic rod to enable the length to reach the required length;
step four, hold the handle and reciprocate alright drive brush hair and arc and reciprocate on the surface of trunk to apply paint with a brush to the surface of trunk, sewage arrives the inside that connects dirty case through the hole that leaks, and after finishing using, the sealed lid of twisting of hand is discharged sewage can.
Compared with the prior art, the invention has the beneficial effects that:
1. when the device is used, the knob is firstly unscrewed, the arc-shaped plate is rotated, and after bristles in the arc-shaped plate are contacted with the surface of a tree to be painted, the knob is screwed down, so that the U-shaped plate can clamp the arc-shaped plate tightly, the rotation angle of the arc-shaped plate is fixed, the device can adapt to trees with different thicknesses, the applicability of the device is improved, and the device can catch paint dripped in the painting process through the mutual matching of the water leakage hole and the sewage receiving box, so that the paint is reduced from dripping on the body of an operator, and the health and safety of the operator are protected.
2. According to the invention, the observation port is formed in the front end face of the dirt receiving box, the observation window which is matched and arranged is fixedly and hermetically connected on the observation port, so that the liquid storage condition of the dirt receiving box can be conveniently observed, the dirt receiving box can be conveniently and timely dumped, and the arc-shaped plate can be rotated at a certain angle through the mutual matching of the rotating shaft, the rotating block and the telescopic rod, so that an operator can conveniently brush a trunk at a high position, and the brushing efficiency of the operator is improved.
Drawings
FIG. 1 is a schematic view of a municipal afforestation trunk painting apparatus and a method of using the same;
FIG. 2 is another schematic view of the brush application device of the trunk for municipal afforestation and the using method thereof;
FIG. 3 is a schematic view of a municipal afforestation trunk brushing apparatus and a method of using the same;
FIG. 4 is a schematic view of the bottom end of an arc plate of a trunk brushing device for municipal afforestation and a method for using the same;
fig. 5 is an enlarged schematic structural view of a region a in fig. 2.
In the figure: 1. an arc-shaped plate; 2. brushing; 3. a knob; 4. a leak-proof plate; 5. a sealing cover; 6. a sewage receiving box; 7. a handle; 8. a telescopic rod; 9. a support plate; 10. a fixing plate; 11. a U-shaped plate; 12. an arc limiting plate; 13. brushing the board; 14. an observation window; 15. rotating the block; 16. rotating the block; 17. a rotating shaft; 18. rotating the rod; 19. and (4) water leakage holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring to fig. 1 to 5, in the embodiment of the invention, a trunk brushing device for municipal afforestation and a using method thereof comprise two arc-shaped plates 1 and two U-shaped plates 11, wherein the inner end surfaces of the two arc-shaped plates 1 are respectively provided with a plurality of brush plates 13 which are uniformly distributed, the inner end surfaces of the brush plates 13 are fixedly provided with a plurality of brush hairs 2 which are uniformly distributed, a horizontally arranged rotating rod 18 is rotatably connected between the front inner wall and the rear inner wall of the U-shaped plate 11, the bottom end of the arc-shaped plate 1 penetrates through the rotating rod 18 and is rotatably connected with the rotating rod 18, one end of the rotating rod 18 penetrates through the inner wall of the U-shaped plate 11 and is in threaded connection with a knob 3, the knob 3 is in contact connection with the front end surface of the U-shaped plate 11, when the knob 3 is rotated and screwed, the U-shaped plate 11 can clamp the arc-shaped plate 1, so as to, the applicability of the device is improved, the lower surface of the U-shaped plate 11 is provided with a plurality of water leakage holes 19 which are uniformly distributed, the lower surface of the U-shaped plate 11 is fixedly connected with two symmetrically distributed sewage receiving boxes 6, the water leakage hole 19 is communicated with the inside of the sewage receiving box 6, the bottom end of the outer side of the sewage receiving box 6 is provided with a water outlet, the water outlet is connected with a sealing cover 5 by screw thread, the lower surface of the U-shaped plate 11 is fixedly connected with two fixing plates 10 which are symmetrically distributed, a rotating shaft 17 is rotatably connected between the two fixing plates 10, a rotating block 16 is arranged on the rotating shaft 17, the rotating block 16 penetrates through the rotating shaft 17 and is rotatably connected with the rotating shaft 17, and one end of the rotating shaft 17 penetrates through the inner wall of the fixing plate 10 and is in threaded connection with a rotating block 15, a supporting plate 9 is fixedly connected to the lower surface of the rotating block 16, an expansion link 8 is fixedly connected to the lower surface of the supporting plate 9, and a handle 7 is fixedly connected to the bottom end of the expansion link 8.
When the device is used, the knob 3 is unscrewed firstly, the arc plate 1 is rotated, after bristles in the arc plate 1 are contacted with the surface of a tree to be painted, the knob 3 is screwed down, so that the U-shaped plate 11 can clamp the arc plate 1 tightly, the rotating angle of the arc plate 1 is fixed, the device can adapt to trees with different thicknesses, the applicability of the device is improved, the device can catch paint dripping in the painting process through the mutual matching of the water leakage hole 19 and the dirt contact box 6, the dropping of the paint on the body of an operator is reduced, the health and safety of the operator are protected, the observation port is formed in the front end face of the dirt contact box 6, the observation port is fixedly and hermetically connected with the observation window 14 which is matched and arranged, the liquid storage condition of the dirt contact box 6 is convenient to observe, the timely dumping is convenient, and the rotation shaft 17, the rotating block 16 and the telescopic rod 8 are matched with each other, can make the arc 1 can certain the rotation on certain angle to make things convenient for operating personnel to apply paint the trunk of eminence with a brush, promoted operating personnel's the efficiency of applying paint with a brush.
The brush plate 13 is fixedly connected with the arc plate 1 through a bolt, so that the brush bristles 2 are convenient to replace, and the use cost of the device is reduced.
The leak-proof plate 4 of the vertical setting of equal fixedly connected with in both sides of U template 11 to promote the leak protection effect of device, reduced the drippage of coating, promoted the security performance of device.
The lower inner wall fixedly connected with of U template 11 has two symmetric distribution's arc limiting plate 12, carries on spacingly through the biggest turned angle of arc limiting plate 12 to arc 1 to U template 11 has been protected, its life has been promoted.
The fixed cover in outside of handle 7 is equipped with anti-skidding rubber sleeve to its landing possibility when reducing operating means has promoted the security performance of device.
The operation steps are as follows:
firstly, manually rotating the arc-shaped plates 1 to enable the arc-shaped plates 1 to be sleeved on the surface of a trunk when in use, and adjusting the thickness between the two arc-shaped plates 1 to enable the brush bristles 2 on the arc-shaped plates 1 to be tightly attached to the trunk;
secondly, rotating the knob 3 to enable the knob 3 to move towards the arc-shaped plate 1, moving the extrusion U-shaped plate 11 towards the arc-shaped plate 1 by the knob 3, enabling the extrusion U-shaped plate 11 and the surface of the arc-shaped plate 1 to closely enter and exit, and finally fixing the arc-shaped plate 1 to enable the thickness degree to be unchanged;
step three, finally, adjusting the length of the telescopic rod 8 to enable the length to reach the required length;
step four, hold the handle and reciprocate alright drive brush hair 2 and arc 1 and reciprocate on the surface of trunk to apply paint with a brush to the surface of trunk, sewage arrives the inside that connects dirty case through the hole 19 that leaks, and after finishing using, the sealed lid 5 of twisting of hand is discharged sewage can.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for the convenience of description of the present invention and for simplicity of description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the present invention should not be construed as being limited thereto, and it should be noted that the terms "mounted" and "connected" should be interpreted broadly, for example, as being able to be fixedly connected, detachably connected, or integrally formed, mechanically connected or indirectly connected through an intermediate, and the specific meaning of the terms in the invention can be understood through specific situations.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (7)

1. A trunk brushing device for municipal greening comprises two arc-shaped plates (1) and U-shaped plates (11), and is characterized in that the two arc-shaped plates (1) are provided, the inner end faces of the two arc-shaped plates (1) are provided with a plurality of brush plates (13) which are uniformly distributed, the inner end faces of the brush plates (13) are fixedly provided with a plurality of brush hairs (2) which are uniformly distributed, a horizontally arranged rotating rod (18) is rotatably connected between the front inner wall and the rear inner wall of the U-shaped plate (11), the bottom end of the arc-shaped plate (1) penetrates through the rotating rod (18) and is rotatably connected with the rotating rod (18), one end of the rotating rod (18) penetrates through the inner wall of the U-shaped plate (11) and is in threaded connection with a knob (3), the knob (3) is in contact connection with the front end face of the U-shaped plate (11), the lower surface of the U-shaped plate (11) is provided with a plurality of uniformly distributed water leakage holes (19), and the, and leak hole (19) and connect the inside of dirty case (6) to communicate each other, and connect the outside bottom of dirty case (6) and seted up the delivery port, threaded connection has sealed lid (5) on the delivery port, and the lower fixed surface of U template (11) is connected with fixed plate (10) of two symmetric distributions, it is connected with axis of rotation (17) to rotate between two fixed plate (10), be equipped with turning block (16) on axis of rotation (17), turning block (16) run through axis of rotation (17) and rotate with axis of rotation (17) and be connected, and the one end of axis of rotation (17) runs through the inner wall and threaded connection of fixed plate (10) has turning block (15), the lower fixed surface of turning block (16) is connected with backup pad (9), the lower fixed surface of backup pad (9) is connected with telescopic link (8), the bottom fixedly connected with handle (.
2. The brushing device for the trunk of the municipal afforestation according to claim 1, wherein an observation port is formed in the front end surface of the sewage receiving box (6), and an observation window (14) which is matched with the observation port is fixedly and hermetically connected to the observation port.
3. The brushing device for the trunk of the municipal afforestation trunk and the using method thereof according to claim 1, characterized in that the brush plate (13) is fixedly connected with the arc plate (1) through bolts.
4. The brushing device for the trunk of the municipal afforestation according to claim 1, characterized in that the two sides of the U-shaped plate (11) are fixedly connected with the vertically arranged anti-leakage plates (4).
5. The brushing device for the trunk of the municipal afforestation according to claim 1, characterized in that the lower inner wall of the U-shaped plate (11) is fixedly connected with two symmetrically distributed arc limiting plates (12).
6. A brushing device for trunk of municipal afforestation according to claim 1, characterized in that the outside of the handle (7) is fixedly sleeved with a non-slip rubber sleeve.
7. The using method of the brushing device for the trunk for municipal greening is characterized by comprising the following operation steps:
firstly, manually rotating the arc-shaped plates (1) to enable the arc-shaped plates (1) to be sleeved on the surface of a trunk when in use, and adjusting the thickness between the two arc-shaped plates (1) to enable the bristles (2) on the arc-shaped plates (1) to be tightly attached to the trunk;
secondly, rotating the knob (3) to enable the knob (3) to move towards the arc-shaped plate (1), moving the knob (3) towards the arc-shaped plate (1) to extrude the U-shaped plate (11), enabling the surfaces of the U-shaped extrusion plate (11) and the arc-shaped plate (1) to be in and out tightly, and finally fixing the arc-shaped plate (1) to enable the thickness degree to be unchanged;
step three, finally, adjusting the length of the telescopic rod (8) to enable the length to reach the required length;
step four, hold the handle and reciprocate alright drive brush hair (2) and arc (1) and reciprocate on the surface of trunk to apply paint with a brush to the surface of trunk, sewage arrives the inside that connects dirty case through leaking hole (19), and after finishing using, the sealed lid of hand (5) is discharged sewage can.
CN202010965535.8A 2020-09-15 2020-09-15 Brushing device for trunk for municipal greening and using method thereof Pending CN112119816A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010965535.8A CN112119816A (en) 2020-09-15 2020-09-15 Brushing device for trunk for municipal greening and using method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010965535.8A CN112119816A (en) 2020-09-15 2020-09-15 Brushing device for trunk for municipal greening and using method thereof

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Publication Number Publication Date
CN112119816A true CN112119816A (en) 2020-12-25

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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204392990U (en) * 2015-01-16 2015-06-17 中国石化集团胜利石油管理局银杏开发中心 Beformable body formula nursery stock whitewashes device
CN205096066U (en) * 2015-11-09 2016-03-23 杨永建 Device is whitewashed to trees
CN108787365A (en) * 2018-06-28 2018-11-13 陈健坤 Afforestation Portable tree dauber and method
CN109013133A (en) * 2018-07-17 2018-12-18 芜湖芬特勘测服务有限公司 A kind of pistol-shaped tree whitening device
CN208357182U (en) * 2018-05-23 2019-01-11 史浩琳 A kind of dismountable garden whitewashing device
CN208527187U (en) * 2018-06-05 2019-02-22 济南国际园博园管理处 A kind of ornamental trees and shrubs whitewash device
CN109719006A (en) * 2019-01-31 2019-05-07 安徽省鑫矿液压机械有限责任公司 A kind of backpack trunk whitewashing device
CN209174291U (en) * 2018-10-27 2019-07-30 郝永贵 A kind of ornamental trees and shrubs seedling whitewashes device
CN209393484U (en) * 2018-12-25 2019-09-17 苏岩 A kind of gardens tree whitewashing painting tool
CN110314824A (en) * 2019-06-17 2019-10-11 中国一冶集团有限公司 A kind of Simple tool of steel pipe scaffold mopping
CN209935147U (en) * 2019-05-08 2020-01-14 中电建宁夏工程有限公司 Paint brush for steel structure net rack

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204392990U (en) * 2015-01-16 2015-06-17 中国石化集团胜利石油管理局银杏开发中心 Beformable body formula nursery stock whitewashes device
CN205096066U (en) * 2015-11-09 2016-03-23 杨永建 Device is whitewashed to trees
CN208357182U (en) * 2018-05-23 2019-01-11 史浩琳 A kind of dismountable garden whitewashing device
CN208527187U (en) * 2018-06-05 2019-02-22 济南国际园博园管理处 A kind of ornamental trees and shrubs whitewash device
CN108787365A (en) * 2018-06-28 2018-11-13 陈健坤 Afforestation Portable tree dauber and method
CN109013133A (en) * 2018-07-17 2018-12-18 芜湖芬特勘测服务有限公司 A kind of pistol-shaped tree whitening device
CN209174291U (en) * 2018-10-27 2019-07-30 郝永贵 A kind of ornamental trees and shrubs seedling whitewashes device
CN209393484U (en) * 2018-12-25 2019-09-17 苏岩 A kind of gardens tree whitewashing painting tool
CN109719006A (en) * 2019-01-31 2019-05-07 安徽省鑫矿液压机械有限责任公司 A kind of backpack trunk whitewashing device
CN209935147U (en) * 2019-05-08 2020-01-14 中电建宁夏工程有限公司 Paint brush for steel structure net rack
CN110314824A (en) * 2019-06-17 2019-10-11 中国一冶集团有限公司 A kind of Simple tool of steel pipe scaffold mopping

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Application publication date: 20201225