CN115478665A - Wall finishing and gap filling device for building construction decoration - Google Patents
Wall finishing and gap filling device for building construction decoration Download PDFInfo
- Publication number
- CN115478665A CN115478665A CN202211127683.8A CN202211127683A CN115478665A CN 115478665 A CN115478665 A CN 115478665A CN 202211127683 A CN202211127683 A CN 202211127683A CN 115478665 A CN115478665 A CN 115478665A
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- Prior art keywords
- wall
- finishing
- box
- building construction
- way
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- 238000009435 building construction Methods 0.000 title claims abstract description 16
- 238000005034 decoration Methods 0.000 title abstract description 6
- 238000007790 scraping Methods 0.000 claims abstract description 9
- 239000002002 slurry Substances 0.000 claims description 24
- 239000007788 liquid Substances 0.000 claims description 21
- 230000000694 effects Effects 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 10
- 238000001125 extrusion Methods 0.000 claims description 8
- 230000001680 brushing effect Effects 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 239000000843 powder Substances 0.000 claims 1
- 238000010422 painting Methods 0.000 abstract description 14
- 238000012423 maintenance Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007591 painting process Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F21/00—Implements for finishing work on buildings
- E04F21/02—Implements for finishing work on buildings for applying plasticised masses to surfaces, e.g. plastering walls
- E04F21/06—Implements for applying plaster, insulating material, or the like
- E04F21/08—Mechanical implements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F21/00—Implements for finishing work on buildings
- E04F21/02—Implements for finishing work on buildings for applying plasticised masses to surfaces, e.g. plastering walls
- E04F21/16—Implements for after-treatment of plaster or the like before it has hardened or dried, e.g. smoothing-tools, profile trowels
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention discloses a wall surface repairing and mending device for building construction decoration, which comprises a device outer cylinder, a leveling rotating disc, a repairing scraping blade, an inner wall boss, an impact movable plug and a whitewashing box, wherein the leveling rotating disc is rotatably arranged outside the device outer cylinder close to one end of the device outer cylinder; the wall surface finishing and filling device can finish and scrape pits or missing parts appearing on the wall surface painting, and compared with the traditional manual painting and finishing mode through a scraper tool, the wall surface finishing and filling device is higher in uniformity, more stable in painting adhesion, smoother in surface, more labor-saving and capable of reducing the dependence on manual skill.
Description
Technical Field
The invention relates to the technical field of decoration tools, in particular to a wall surface finishing and gap filling device for building construction decoration.
Background
In building construction, it is necessary to render a wall surface with a finish treatment such as emulsion paint, etc., to improve the aesthetic appearance. In the actual painting process, the condition of local unevenness or omission often appears, and the repair uniformity is difficult to guarantee through painting the scraper tool again at this moment, and during the secondary painting, direct knife coating once more is stained with and attaches the effect poorly.
Disclosure of Invention
The invention aims to provide a wall surface finishing and gap filling device for building construction and decoration, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a wall that building construction fitment was used is maintained and is mended scarce device, includes the device urceolus, scrapes flat carousel, is maintained and scrapes leaf, inner wall boss, strikes activity stopper and whitewashes the thick liquid box, the outside of device urceolus is close to its end position rotation and is provided with the flat carousel of scraping, it is provided with to maintain the fixed surface of one side that the carousel kept away from device urceolus other end place position and scrapes the leaf to scrape, the inner wall of device urceolus is close to its end position fixed and is provided with the inner wall boss, the inner wall boss is cyclic annular, the inner wall boss with maintain and scrape a side surface parallel and level that the leaf kept away from device urceolus other end place position, the inside activity of device urceolus is provided with strikes the activity stopper, strike the activity stopper with the inner circle surface seal contact of inner wall boss, strike the activity stopper with be provided with the promotion structure that has intermittent type drive function between the device urceolus, the outside top position fixed whitewashes the thick liquid box that is provided with, whitewashes the inner circle region of thick liquid box and passing through one-way and leads the liquid structure intercommunication.
The pushing structure comprises a metal magnetic suction disc, an electromagnet and a reset extrusion spring.
The fixed tip position that sets up at the impact activity stopper of metal magnetic chuck, the inner wall fixed surface of device urceolus is provided with the electro-magnet, the outside of electro-magnet is located the cover and establishes between the inner wall surface of metal magnetic chuck and device urceolus and installs the extrusion spring that resets.
The one-way liquid guiding structure comprises a slurry path channel, a communicating annular cavity, a slurry box one-way pipe, a plugging plate, a through hole, a one-way plugging disc, a positioning insertion rod, a supporting base plate, a central insertion hole and a supporting spring.
The slurry path channel and the communicating annular cavity are arranged inside the inner wall boss, one end of the slurry path channel is communicated with the surface of the inner ring of the inner wall boss, the other end of the slurry path channel is communicated with the communicating annular cavity, the communicating annular cavity is communicated with the lower end of the slurry box one-way pipe, and the upper end of the slurry box one-way pipe is communicated with the bottom of the whitewashing slurry box.
The inside of thick liquid box check pipe is fixed and is provided with the shutoff board, the clearing hole has been seted up in the surface running through of shutoff board, the below lift activity of clearing hole is provided with one-way stifled dish, the diameter of one-way stifled dish is greater than the diameter of clearing hole, the lower fixed surface position of one-way shutoff dish is provided with the location inserted bar, the fixed support chassis that is provided with in below of one-way shutoff dish, support chassis surface runs through and has seted up central jack, the location inserted bar alternates through central jack, the outside of location inserted bar is located one-way shutoff dish and supports and establishes between the chassis and install supporting spring.
The outer surface position of device urceolus is fixed and is provided with handheld support and drive power box, the outer surface position of strickleing off the carousel is coaxial fixed and is provided with driven ring gear, the fixed drive gear that is provided with in rotation output shaft outside of drive power box, drive gear with driven ring gear intermeshing.
The inner ring position of the strickle rotating disc is fixedly provided with a central clamping ring, and the outer surface position of the outer cylinder of the device is fixedly provided with limiting chucks on two sides of the central clamping ring.
Compared with the prior art, the invention has the beneficial effects that:
the wall surface finishing and filling device can finish and scrape pits or missing parts generated by wall surface painting, has higher uniformity, more stable painting adhesion and smoother surface compared with the traditional manual mode of painting and finishing by a scraper tool, can save more labor, and reduces the dependence on manual skills;
the brushing liquid in the brushing slurry box can be extracted into the boss on the inner wall by the axial impact reciprocating movement of the impact movable plug, the brushing slurry is flapped on the wall by the extrusion force of the impact, and the slurry is deeper into the wall by the impact force of the flapping, so that the attaching effect is increased;
the device is at the in-process that the wall removed, and the leaf is scraped in the maintenance, can be strikeed with the whitewash thick liquid of attaching and strickle off to make the wall level more through the scraping, need not to apply and whitewash the skill and can realize that smooth maintenance is mended, make staff's construction threshold reduce.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a half-section configuration of the present invention;
FIG. 3 is an enlarged view of area A in FIG. 2;
FIG. 4 is an isometric view of the overall structure of the present invention;
FIG. 5 is a front view of the overall structure of the present invention;
fig. 6 is a front view of a half-section configuration of the present invention.
In the figure: 1. an outer device cylinder; 2. strickle the rotary table; 3. trimming and scraping leaves; 4. a boss on the inner wall; 5. impacting the movable plug; 6. whitewashing the pulp box; 501. a metal magnetic chuck; 502. an electromagnet; 503. resetting the extrusion spring; 601. a slurry path channel; 602. the annular cavity is communicated; 603. a pulp box one-way pipe; 604. a plugging plate; 605. through the aperture; 606. a one-way blocking disc; 607. positioning the inserted rod; 608. a support chassis; 609. a central jack; 610. a support spring; 101. a hand-held stand; 102. driving the power box; 103. a driven ring gear; 104. a drive gear; 201. a central clamp ring; 202. and a limiting chuck.
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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1 to 6, the present invention provides a technical solution: the utility model provides a wall that building construction fitment was used is maintained and is filled up device, including device urceolus 1, strickle off carousel 2, maintain and scrape leaf 3, inner wall boss 4, impact movable stopper 5 and whitewash box 6, the outside of device urceolus 1 is close to its one end position rotatory and is provided with strickle off carousel 2, strickle off carousel 2 and keep away from one side fixed surface of the device urceolus 1 other end position and be provided with and maintain and scrape leaf 3, the inner wall of device urceolus 1 is close to its one end position and fixedly be provided with inner wall boss 4, inner wall boss 4 is cyclic annular, inner wall boss 4 is with to maintain and scrape one side fixed surface parallel and level that leaf 3 kept away from the device urceolus 1 other end position, the inside activity of device urceolus 1 is provided with and strikes movable stopper 5, strike movable stopper 5 and the inner circle surface sealing contact of inner wall boss 4, it has the promotion structure of intermittent type drive function to strike and be provided with between stopper 5 and the device urceolus 1, the outside top fixed position of device urceolus is provided with whitewash box 6, the inner circle region of whitewash box 6 is through one-way liquid guide structure intercommunication.
The pushing structure comprises a metal magnetic suction disc 501, an electromagnet 502 and a reset extrusion spring 503, the metal magnetic suction disc 501 is fixedly arranged at the end position of the impact movable plug 5, the electromagnet 502 is fixedly arranged on the surface of the inner wall of the outer cylinder 1 of the device, the electromagnet 502 is in pulse current in actual working, so that the electromagnet 502 intermittently generates magnetic force, the reset extrusion spring 503 is sleeved between the inner wall surfaces of the metal magnetic suction disc 501 and the outer cylinder 1 of the device in the outside of the electromagnet 502.
The one-way drainage structure comprises a slurry channel 601, a communicating annular cavity 602, a slurry box one-way pipe 603, a blocking plate 604, a through hole 605, a one-way blocking disc 606, a positioning inserted rod 607, a supporting bottom disc 608, a central insertion hole 609 and a supporting spring 610.
The pulp path channel 601 and the communicating annular cavity 602 are both arranged inside the inner wall boss 4, one end of the pulp path channel 601 is communicated with the inner ring surface of the inner wall boss 4, the other end of the pulp path channel 601 is communicated with the communicating annular cavity 602, the communicating annular cavity 602 is communicated with the lower end of the pulp box one-way pipe 603, and the upper end of the pulp box one-way pipe 603 is communicated with the bottom of the plastering pulp box 6.
The inside of thick liquid box one-way pipe 603 is fixed and is provided with shutoff board 604, the surface of shutoff board 604 runs through and has seted up clearing hole 605, the below lift activity of clearing hole 605 is provided with one-way stifled dish 606, the diameter of one-way stifled dish 606 is greater than the diameter of clearing hole 605, the lower surface rigidity of one-way stifled dish 606 is provided with location inserted bar 607, the fixed support chassis 608 that is provided with in below of one-way stifled dish 606, support chassis 608 surface runs through and has seted up central jack 609, location inserted bar 607 alternates through central jack 609, the outside of location inserted bar 607, it installs supporting spring 610 to be located the cover between one-way stifled dish 606 and the support chassis 608.
The outer surface position of the device outer cylinder 1 is fixedly provided with a handheld support 101 and a driving power box 102, the driving power box 102 is internally composed of a motor and a reduction gear, the outer surface position of the scraping turntable 2 is coaxially and fixedly provided with a driven gear ring 103, the outer part of a rotating output shaft of the driving power box 102 is fixedly provided with a driving gear 104, and the driving gear 104 is meshed with the driven gear ring 103.
A central clamping ring 201 is fixedly arranged at the inner ring position of the scraping turntable 2, and limiting chucks 202 are fixedly arranged at the two sides of the central clamping ring 201 at the outer surface position of the outer cylinder 1.
When the wall surface repairing device is used, liquid slurry such as emulsion paint required by painting is injected into the painting slurry box 6, the handheld support 101 is held, so that the repairing scraping blade 3 and the inner wall boss 4 are attached to the wall surface defect for repairing, the device is only used for repairing the repairing defect, and if the wall surface is not painted completely, the cement wall surface can cause great abrasion to the repairing scraping blade 3 and the inner wall boss 4;
the electromagnet 502 intermittently generates magnetic force, attracts the impact movable plug 5 to move axially, and then resets under the elastic force of the reset extrusion spring 503, so as to reciprocate, the impact movable plug 5 can move in an impact reciprocating manner, at the moment, because the end surface of the inner wall boss 4 is attached to the wall surface, when the impact movable plug 5 moves axially away from the wall surface, negative pressure suction can be generated inside the inner wall boss 4, the suction draws out the painting liquid in the painting paste box 6 through the one-way liquid guide structure and sprays the painting liquid into the inner area of the inner wall boss 4 through the paste channel 601, as shown in fig. 2, when the impact movable plug 5 moves axially close to the wall surface, the paste can be impacted and flapped on the wall surface, so that the painting liquid can deeply permeate the wall surface, and the adhesion stability is increased;
strickle off carousel 2 and pass through drive power box 102 drive rotation to it is rotatory to drive to repair and scrape leaf 3, and thrust unit removes on the wall this moment, and inner wall boss 4 is owing to contact with the wall, can at first strickle off the thick liquid, and can avoid whitewashing a large amount of thick liquids and spill over, produces and drips and hangs the problem, and the maintenance is scraped leaf 3 and can be strickleed off to the wall after patting the thick liquid, scrapes the high-speed at the uniform velocity of leaf 3 through the maintenance and rotate, can guarantee to strickle off the homogeneity.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a wall that building construction fitment was used is maintained and is mended scarce device, includes device urceolus (1), scrapes flat carousel (2), maintains and scrapes leaf (3), inner wall boss (4), strikes movable stopper (5) and whitewashes thick liquid box (6), its characterized in that: the utility model discloses a device, including device urceolus (1), inner wall, striking disc (4), inner wall boss (4) and inner circle surface seal contact of inner wall boss (4), strike movable stopper (5) and be provided with the promotion structure that has intermittent type nature drive function between outer cylinder (1), the outside of device urceolus (1) is close to its one end position rotation and is provided with scrapes flat carousel (2), it is provided with to scrape flat carousel (2) and keep away from one side fixed surface of device urceolus (1) other end place position and repaiies leaf (3), the inner wall of device urceolus (1) is close to its one end position and fixes and is provided with inner wall boss (4), inner wall boss (4) are cyclic annular, inner wall boss (4) with a side surface parallel and level of scraping leaf (3) and keeping away from device urceolus (1) other end place position, the inside activity of device urceolus (1) is provided with strikes movable stopper (5), strike movable stopper (5) with the inner circle surface seal contact of inner wall boss (4), strike movable stopper (5) with the promotion structure that has intermittent type drive function between device urceolus (1), the outside top rigidity is provided with whitewashing box (6), the inner circle region of whitewashing box (6) is through one-way liquid guide structure intercommunication.
2. A wall finishing and gap-filling device for building construction and finishing as claimed in claim 1, wherein: the pushing structure comprises a metal magnetic suction disc (501), an electromagnet (502) and a reset compression spring (503).
3. A wall finishing and gap-filling device for building construction and finishing as claimed in claim 2, wherein: the fixed tip position that sets up at impact activity stopper (5) of metal magnetic chuck (501), the inner wall fixed surface of device urceolus (1) is provided with electro-magnet (502), the outside of electro-magnet (502) is located to overlap to establish between the inner wall surface of metal magnetic chuck (501) and device urceolus (1) and installs extrusion spring (503) that resets.
4. The wall finishing and filling device for building construction and finishing as claimed in claim 1, wherein: the one-way drainage structure comprises a slurry path channel (601), a communicating annular cavity (602), a slurry box one-way pipe (603), a plugging plate (604), a through hole (605), a one-way plugging disc (606), a positioning inserted rod (607), a supporting base disc (608), a central insertion hole (609) and a supporting spring (610).
5. The wall finishing and gap-filling device for building construction and finishing as claimed in claim 4, wherein: the slurry path channel (601) and the communicating annular cavity (602) are arranged inside the inner wall boss (4), one end of the slurry path channel (601) is communicated with the surface of the inner ring of the inner wall boss (4), the other end of the slurry path channel is communicated with the communicating annular cavity (602), the communicating annular cavity (602) is communicated with the lower end of the slurry box one-way pipe (603), and the upper end of the slurry box one-way pipe (603) is communicated with the bottom of the powder brushing slurry box (6).
6. A wall finishing and gap-filling device for building construction and finishing as claimed in claim 5, wherein: the inside of thick liquid box one-way pipe (603) is fixed and is provided with shutoff board (604), the surface of shutoff board (604) is run through and has been seted up clearing hole (605), the activity of going up and down of below clearing hole (605) is provided with one-way shutoff dish (606), the diameter of one-way shutoff dish (606) is greater than the diameter of clearing hole (605), the lower surface rigidity of one-way shutoff dish (606) is provided with location inserted bar (607), the below of one-way shutoff dish (606) is fixed and is provided with support chassis (608), support chassis (608) surface is run through and has been seted up central jack (609), location inserted bar (607) alternate through central jack (609), the outside of location inserted bar (607), it installs supporting spring (610) to be located to establish between one-way shutoff dish (606) and the support chassis (608).
7. A wall finishing and gap-filling device for building construction and finishing as claimed in claim 1, wherein: the outer surface position of device urceolus (1) is fixed and is provided with handheld support (101) and drive power box (102), the outer surface position coaxial fixed of strickleing carousel (2) is provided with driven ring gear (103), the fixed drive gear (104) that is provided with in the rotation output shaft outside of drive power box (102), drive gear (104) with driven ring gear (103) intermeshing.
8. A wall finishing and gap-filling device for building construction and finishing as claimed in claim 1, wherein: the inner ring position of the strickle turntable (2) is fixedly provided with a central clamping ring (201), and the outer surface position of the outer cylinder (1) of the device is fixedly provided with limiting chucks (202) at two sides of the central clamping ring (201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211127683.8A CN115478665B (en) | 2022-09-16 | 2022-09-16 | Wall surface trimming and gap repairing device for building construction and decoration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211127683.8A CN115478665B (en) | 2022-09-16 | 2022-09-16 | Wall surface trimming and gap repairing device for building construction and decoration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115478665A true CN115478665A (en) | 2022-12-16 |
| CN115478665B CN115478665B (en) | 2024-05-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211127683.8A Active CN115478665B (en) | 2022-09-16 | 2022-09-16 | Wall surface trimming and gap repairing device for building construction and decoration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115478665B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050238429A1 (en) * | 2004-04-22 | 2005-10-27 | Kipp John H Jr | Surface finisher |
| CN101412010A (en) * | 2007-10-19 | 2009-04-22 | 喜利得股份公司 | Ejection device |
| CN106938496A (en) * | 2017-04-28 | 2017-07-11 | 遵义宏达新型建材有限公司 | A kind of equipment of waste brickmaking |
| CN107386607A (en) * | 2017-08-06 | 2017-11-24 | 合肥千奴信息科技有限公司 | A kind of floating instrument of construction |
| CN107795104A (en) * | 2017-10-12 | 2018-03-13 | 长沙市凤英机械科技有限公司 | Device is painted in a kind of adjustable antidrip room |
| CN211775532U (en) * | 2020-01-10 | 2020-10-27 | 漆亮 | Construction joint filling device |
| CN112302304A (en) * | 2020-11-18 | 2021-02-02 | 广州辰邦贸易有限公司 | Roller brush with automatic material suction function |
| CN213927355U (en) * | 2020-10-22 | 2021-08-10 | 江苏金崇源建筑装饰工程有限公司 | Fitment is with high-efficient device of whitewashing |
| CN215107020U (en) * | 2021-06-17 | 2021-12-10 | 深圳鹏利建设集团有限公司 | Wall construction whitewashes appurtenance |
-
2022
- 2022-09-16 CN CN202211127683.8A patent/CN115478665B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050238429A1 (en) * | 2004-04-22 | 2005-10-27 | Kipp John H Jr | Surface finisher |
| CN101412010A (en) * | 2007-10-19 | 2009-04-22 | 喜利得股份公司 | Ejection device |
| CN106938496A (en) * | 2017-04-28 | 2017-07-11 | 遵义宏达新型建材有限公司 | A kind of equipment of waste brickmaking |
| CN107386607A (en) * | 2017-08-06 | 2017-11-24 | 合肥千奴信息科技有限公司 | A kind of floating instrument of construction |
| CN107795104A (en) * | 2017-10-12 | 2018-03-13 | 长沙市凤英机械科技有限公司 | Device is painted in a kind of adjustable antidrip room |
| CN211775532U (en) * | 2020-01-10 | 2020-10-27 | 漆亮 | Construction joint filling device |
| CN213927355U (en) * | 2020-10-22 | 2021-08-10 | 江苏金崇源建筑装饰工程有限公司 | Fitment is with high-efficient device of whitewashing |
| CN112302304A (en) * | 2020-11-18 | 2021-02-02 | 广州辰邦贸易有限公司 | Roller brush with automatic material suction function |
| CN215107020U (en) * | 2021-06-17 | 2021-12-10 | 深圳鹏利建设集团有限公司 | Wall construction whitewashes appurtenance |
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| Publication number | Publication date |
|---|---|
| CN115478665B (en) | 2024-05-10 |
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