CN110280515A - A kind of column cleaning device - Google Patents
A kind of column cleaning device Download PDFInfo
- Publication number
- CN110280515A CN110280515A CN201910654856.3A CN201910654856A CN110280515A CN 110280515 A CN110280515 A CN 110280515A CN 201910654856 A CN201910654856 A CN 201910654856A CN 110280515 A CN110280515 A CN 110280515A
- Authority
- CN
- China
- Prior art keywords
- cleaning
- shell
- rotation
- column
- cleaned
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 114
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 4
- 238000005096 rolling process Methods 0.000 claims description 8
- 239000006223 plastic coating Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 6
- 239000006260 foam Substances 0.000 claims description 4
- 210000004209 hair Anatomy 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 239000002390 adhesive tape Substances 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical group [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 244000007853 Sarothamnus scoparius Species 0.000 description 1
- 239000011538 cleaning material Substances 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
- B08B1/32—Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/12—Brushes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
Landscapes
- Cleaning In General (AREA)
- Brushes (AREA)
Abstract
The invention discloses a kind of column cleaning device, cleaning shell flexible is included, positioned at the driving structure cleaning shell intracorporal rotation cleaning item and the rotation cleaning item is driven to rotate；The cyclic structure for cleaning shell and there is opening, and inside forms the cavity for cooperating the rotation cleaning item rotation, it is described to clean in shell along the opening for forming connection cavity；The rotation cleaning item be flexible bar type and it is circumferentially distributed have a brush portion, and extend along the length direction of the cavity, the brush portion end for cleaning component can extend into the cleaning case inside from the opening.Beneficial effect is: by the way that rotation cleaning item flexible is arranged, shell can will be cleaned to cover behind beyond the region of objective existence side to be cleaned, equipment is pulled along object axial reciprocating to be cleaned, and lesser angle is circumferentially rotated along object to be cleaned, the cleaning of column exterior surface to be cleaned can be realized, it is convenient to operate, and improves the cleaning efficiency of column object to be cleaned, reduces working strength.
Description
Technical field
The present invention relates to cleaning equipment technology fields, and in particular to a kind of column cleaning device.
Background technique
During municipal cleansing, need to carry out surface cleaning to lamp post and electric pole, and need to some trees
The vertical bar of wood carries out surface cleaning.Existing cleaning equipment is that broom or the homemade cleaning equipment of worker (usually tie up ball top
In straight-bar end, the lengthening cleaning equipment of composition), during cleaning, since object to be cleaned is higher, and it is strip, needs to grasp
Workmanship's manpower holding equipment circumferentially rotates reciprocal cleaning around object to be cleaned, and sweeping efficiency is low, and inconvenient for use.
Summary of the invention
The object of the invention is that a kind of column cleaning device is provided to solve the above-mentioned problems, it is provided by the invention
Preferred technical solution, which includes, in many technical solutions to carry out it fastly by covering in the beyond the region of objective existence side to be cleaned of direct rod shape
The cleaning of speed, it is easy to use, and the technical effects such as cleaning efficiency height, elaboration as detailed below.
To achieve the above object, the present invention provides following technical schemes:
A kind of column cleaning device provided by the invention includes cleaning shell flexible, is located at the intracorporal rotation cleaning of the cleaning shell
Part and the driving structure for driving rotation cleaning item rotation；
The cyclic structure for cleaning shell and there is opening, and inside forms the cavity for cooperating the rotation cleaning item rotation,
Along the opening for forming connection cavity in the cleaning shell；
The rotation cleaning item be flexible bar type and it is circumferentially distributed have a brush portion, and extend along the length direction of the cavity, it is described
The brush portion end for cleaning component can extend into the cleaning case inside from the opening；
The driving structure is fixedly installed in described one end for cleaning shell, and the driving structure links the rotation and cleans component
One end.
Using a kind of above-mentioned column cleaning device, the opening between the cleaning shell both ends is opened, it then will be described
It cleans shell to cover in the outside of column to be cleaned, opens the driving structure, the rotation cleaning item is driven to rotate, described turn
The dynamic brush portion cleaned on component is contacted through the opening for cleaning case inside with object surface to be cleaned, to realize to column
The cleaning on surface；It is axially pulled along column and cleans shell, while circumferentially rotating the cleaning shell along column, it can be right
It is comprehensively cleaned on column surface.
Preferably, being equipped with hand-held supports portion in the driving structure, the hand-held supports portion and the driving structure turn
Dynamic cooperation.
Preferably, the driving structure side is provided with the rotating connector for connecting the hand-held supports portion.
Preferably, described clean the upper casing and lower casing that shell includes setting symmetrical above and below, the upper casing and the lower casing
Outer be detachably connected by screw；
The upper casing and the same end of the lower casing are openning shape, and the end is fixedly connected by screw with the driving structure, described
The other end of upper casing and the lower casing is enclosed construction.
Preferably, the rotation cleaning item includes flexible shaft and covers the cleaning rolling brush on the outside of the flexible shaft；
The cleaning rolling brush is made of the bristle for covering the lantern ring on the outside of flexible shaft and being plugged and fixed on lantern ring outer wall；Wherein,
The lantern ring and the flexible shaft are interference fitted；The bristle can extend into the cleaning enclosure interior through the opening.
Preferably, the cleaning enclosure interior is provided with the intermediate support and cooperation for cooperating the middle part of the flexible shaft
The end supports of the flexible shaft end；
The supported hole of cooperation flexible shaft rotation, the flexible shaft are formed in the intermediate support and the end supports
It is rotatably assorted through supported hole and with the supported hole.
Preferably, the bristle is one of plastics, animal hair, rubber strip, foam strip and stainless steel wire or two
Kind.
Preferably, the driving structure includes connecting the protecting crust for cleaning shell and being fixedly installed in the protecting crust
Internal motor；The protecting crust is sealing structure, and is internally provided with the power module to motor power supply.
Preferably, the cleaning shell is made of rubber material, and cleans inner walls and be provided with plastic coating；It is described
It is adhesively fixed between plastic coating and cleaning shell.
Preferably, the junction of the driving structure and the rotation cleaning item is provided with sealing bearing.
To sum up, the beneficial effects of the present invention are: by the way that rotation cleaning item flexible is arranged, can will clean shell cover to
After on the outside of cleaning material, equipment is pulled along object axial reciprocating to be cleaned, and circumferentially rotate lesser angle, Ji Keshi along object to be cleaned
The cleaning of existing column exterior surface to be cleaned, it is convenient to operate, and improves the cleaning efficiency of column object to be cleaned, reduces work
Make intensity.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is schematic view of the front view of the invention；
Fig. 2 is overlooking structure diagram of the invention；
Fig. 3 is the schematic diagram of internal structure of Fig. 2；
Fig. 4 is the structural schematic diagram of flexible shaft of the present invention；
Fig. 5 is the structural schematic diagram of cleaning rolling brush of the present invention.
The reference numerals are as follows:
1, shell is cleaned；101, upper casing；102, lower casing；2, cleaning item is rotated；201, flexible shaft；202, cleaning rolling brush；203, in
Between supporting element；204, end supports；3, driving structure；301, protecting crust；302, motor；4, rotating connector；5, branch is held
Support part.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
Referring to shown in Fig. 1-Fig. 5, the present invention provides a kind of column cleaning device, include that cleaning shell 1 flexible, be located at should
It cleans the rotation cleaning item 2 in shell 1 and drives the driving structure 3 of the rotation cleaning item 2 rotation；
The cyclic structure that shell 1 has opening is cleaned, and inside forms the cavity that cooperation rotation cleaning item 2 rotates, and cleans shell
Along the opening for forming connection cavity in body 1；
Rotation cleaning item 2 be flexible bar type and it is circumferentially distributed have a brush portion, and extend along the length direction of cavity, clean the brush of component
Portion end can be extended into from opening cleans 1 inside of shell；
Driving structure 3 is fixedly installed in the one end for cleaning shell 1, and the driving structure 3 link rotation cleans one end of component, drives
Dynamic structure 3 and the junction of rotation cleaning item 2 are provided with sealing bearing, seal bearing by setting, can prevent cleaning operation mistake
Cheng Zhong cleans the dust inside shell 1 and enters driving structure 3, improves the cleanliness inside driving structure 3.
As optional embodiment, hand-held supports portion 5 is installed in driving structure 3, the hand-held supports portion 5 and driving are tied
Structure 3 is rotatably assorted, and hand-held supports portion 5 is support rod, can be convenient for by support rod when cleaning vertically arranged column surface,
The height of adjustment equipment improves the convenient degree that equipment uses；3 side of driving structure is provided with the rotating connector of connection support bar
4, rotating connector 4 is U-shaped frame, and support rod connection 3 one end of driving structure is clamped on the inside of U-shaped frame, and by external knob with
The U-shaped frame is rotatably assorted, which sequentially passes through another side wall of the one side wall of U-shaped frame, support rod and U-shaped frame, and passes through with after
By being threadedly engaged, turning knob can tighten the two sidewalls of U-shaped frame the U-shaped frame side wall worn, to carry out to support boom end
It grips；
The outer of upper casing 101 and lower casing 102 of the cleaning shell 1 including setting symmetrical above and below, upper casing 101 and lower casing 102 passes through spiral shell
Nail is detachably connected；Upper casing 101 and the same end of lower casing 102 are openning shape, and the end is fixedly connected by screw with driving structure 3,
The other end of upper casing 101 and lower casing 102 is enclosed construction；
Rotation cleaning item 2 is including flexible shaft 201 and covers the cleaning rolling brush 202 in 201 outside of the flexible shaft；Cleaning rolling brush 202 by
The lantern ring in 201 outside of flexible shaft is covered to form with the bristle being plugged and fixed on lantern ring outer wall；Wherein, lantern ring and flexible shaft 201
Interference fit；Bristle can be extended into through opening and be cleaned inside shell 1, and flexible shaft 201 rotates, and drive lantern ring and bristle rotation, brush
Hair can extend through opening far from lantern ring one end and clean outside shell 1 in rotary course, with 1 inside of cleaning shell to clear
Column contact is swept, realizes the cleaning to column surface；It cleans shell 1 and is internally provided with the middle part for cooperating flexible shaft 201
The end supports 204 of intermediate support 203 and cooperation 201 end of flexible shaft；Intermediate support 203 and end supports 204
On form the supported hole that cooperation flexible shaft 201 rotates, flexible shaft 201 through supported hole and being rotatably assorted with the supported hole,
End supports 204 and intermediate support 203 are the connection frame of two arches, one of connection frame and 102 bottom of lower casing
It is fixedly connected by screw, another fixed frame is connected through a screw thread with the fixed frame, so that supported hole is formed, inside the supported hole
Bearing is installed, flexible shaft 201 cooperates through the bearing and with the inner wall activity of the bearing；
Bristle is one or both of plastics, animal hair, rubber strip, foam strip and stainless steel wire, uses plastics, animal wool
Hair, rubber strip and foam strip can remove the dust on column surface as bristle, use stainless steel wire as bristle, can be to column
The trade mark and rusty stain on object surface are polished；
Driving structure 3 includes the motor that connection cleans the protecting crust 301 of shell 1 and is fixedly installed in inside the protecting crust 301
302；Protecting crust 301 is sealing structure, and is internally provided with the power module powered to motor 302, and power module is lithium battery
Group is provided with the switch of connection lithium battery group and motor 302 on protecting crust 301；
It cleans shell 1 to be made of rubber material, and cleans 1 inner wall of shell and be provided with plastic coating；Plastic coating and cleaning shell 1
Between be adhesively fixed, setting plastic coating can increase the wear-resisting property for cleaning the inside of shell 1, clean shell made of rubber material
1 itself has flexibility, will can clean and break into two with one's hands between 1 both ends of shell when in use, so that 1 set of shell will be cleaned to be cleaned
On the outside of column.
Using the above structure, the opening between 1 both ends of shell will be cleaned to open, will then cleans 1 set of shell to be cleaned
Driving structure 3 is opened in the outside of column, and rotation cleaning item 2 is driven to rotate, and rotation cleans the brush portion on component through cleaning shell
The opening of 1 inside is contacted with object surface to be cleaned, to realize the cleaning to column surface；It axially pulls and cleans along column
Shell 1, while shell 1 is cleaned along circumferentially rotating for column, column surface can comprehensively be cleaned.
By the way that rotation cleaning item 2 flexible is arranged, 1 set of shell can will be cleaned behind beyond the region of objective existence side to be cleaned, along object to be cleaned
Axial reciprocating pulls equipment, and circumferentially rotates lesser angle along object to be cleaned, and column exterior surface to be cleaned can be realized
Cleaning, it is convenient to operate, and improves the cleaning efficiency of column object to be cleaned, reduces working strength.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of column cleaning device, which is characterized in that including cleaning shell (1) flexible, be located in the cleaning shell (1)
It rotates cleaning item (2) and drives the driving structure (3) of the rotation cleaning item (2) rotation；
The cyclic structure for cleaning shell (1) and there is opening, and inside forms cooperation rotation cleaning item (2) rotation
Cavity, it is described to clean in shell (1) along the opening for forming connection cavity；
The rotation cleaning item (2) be flexible bar type and it is circumferentially distributed have a brush portion, and extend along the length direction of the cavity, institute
The brush portion end for stating cleaning component can be extended into from the opening on the inside of the cleaning shell (1)；
The driving structure (3) is fixedly installed in described one end for cleaning shell (1), and described turn of the driving structure (3) link
Dynamic one end for cleaning component.
2. a kind of column cleaning device according to claim 1, it is characterised in that: be equipped with hand on the driving structure (3)
Support portion (5) are held, which is rotatably assorted with the driving structure (3).
3. a kind of column cleaning device according to claim 2, it is characterised in that: driving structure (3) side is provided with
Connect the rotating connector (4) of the hand-held supports portion (5).
4. a kind of column cleaning device according to claim 1, it is characterised in that: the cleaning shell (1) includes right up and down
The outer of the upper casing (101) and lower casing (102) of title setting, the upper casing (101) and the lower casing (102) is detachable by screw
Connection；
The upper casing (101) and the lower casing (102) the same end are openning shape, and solid by screw and the driving structure (3)
Fixed to connect, the other end of the upper casing (101) and the lower casing (102) is enclosed construction.
5. a kind of column cleaning device according to claim 1, it is characterised in that: the rotation cleaning item (2) includes flexibility
Axis (201) and cover the cleaning rolling brush (202) on the outside of the flexible shaft (201)；
The cleaning rolling brush (202) is by the bristle that covers lantern ring on the outside of flexible shaft (201) and be plugged and fixed on lantern ring outer wall
Composition；Wherein, the lantern ring and the flexible shaft (201) are interference fitted；The bristle can extend into described clear through the opening
It is internal to sweep shell (1).
6. a kind of column cleaning device according to claim 5, it is characterised in that: the cleaning shell (1) is internally provided with
Cooperate the intermediate support (203) at the middle part of the flexible shaft (201) and the end support of cooperation flexible shaft (201) end
Part (204)；
The branch of cooperation flexible shaft (201) rotation is formed on the intermediate support (203) and the end supports (204)
Hole is supportted, the flexible shaft (201) is rotatably assorted through supported hole and with the supported hole.
7. a kind of column cleaning device according to claim 5, it is characterised in that: the bristle is plastics, animal hair, rubber
One or both of adhesive tape, foam strip and stainless steel wire.
8. a kind of column cleaning device according to claim 1, it is characterised in that: the driving structure (3) includes connection institute
It states the protecting crust (301) for cleaning shell (1) and is fixedly installed in the internal motor (302) of the protecting crust (301)；The protecting crust
(301) it is sealing structure, and is internally provided with the power module to the motor (302) power supply.
9. a kind of column cleaning device according to claim 1, it is characterised in that: the cleaning shell (1) is rubber material
It is made, and cleans shell (1) inner wall and be provided with plastic coating；It is adhesively fixed between the plastic coating and cleaning shell (1).
10. a kind of column cleaning device according to claim 1, it is characterised in that: the driving structure (3) and the rotation
The junction of cleaning item (2) is provided with sealing bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910654856.3A CN110280515B (en) | 2019-07-19 | 2019-07-19 | Upright post cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910654856.3A CN110280515B (en) | 2019-07-19 | 2019-07-19 | Upright post cleaning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110280515A true CN110280515A (en) | 2019-09-27 |
| CN110280515B CN110280515B (en) | 2021-09-14 |
Family
ID=68023449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910654856.3A Active CN110280515B (en) | 2019-07-19 | 2019-07-19 | Upright post cleaning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110280515B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111839354A (en) * | 2020-07-30 | 2020-10-30 | 合肥鑫峰机械科技有限责任公司 | Energy-concerving and environment-protective cleaning device based on building post |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3593353A (en) * | 1966-05-23 | 1971-07-20 | Sando Iron Works Co | Washing of a contaminated guideroll and prevention therefrom in cloth treatments |
| KR100823975B1 (en) * | 2007-06-27 | 2008-04-22 | 권영민 | The electrical insulator cleaning device in which the rotator rotating on its own axis is equipped |
| CN101301143A (en) * | 2007-05-09 | 2008-11-12 | 大连信瑞科技有限公司 | Automatic soft shaft brush |
| CN202555513U (en) * | 2012-05-04 | 2012-11-28 | 徐州工业职业技术学院 | Cleaning device of street lamp |
| CN203862586U (en) * | 2014-05-10 | 2014-10-08 | 常州泽众机电科技有限公司 | Insulator electrified cleaner |
| CN105057245A (en) * | 2015-08-21 | 2015-11-18 | 国家电网公司 | Porcelain-bottle cleaning machine |
| CN206122102U (en) * | 2016-10-14 | 2017-04-26 | 昆山久庆塑胶有限公司 | From cleaning type hot melt rifle |
| CN206981248U (en) * | 2017-04-18 | 2018-02-09 | 洛阳沣诚生物科技有限公司 | A kind of advertisement on wire pole remove device |
| CN207371983U (en) * | 2017-10-24 | 2018-05-18 | 西南石油大学 | A kind of petroleum pipeline cleaning device |
-
2019
- 2019-07-19 CN CN201910654856.3A patent/CN110280515B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3593353A (en) * | 1966-05-23 | 1971-07-20 | Sando Iron Works Co | Washing of a contaminated guideroll and prevention therefrom in cloth treatments |
| CN101301143A (en) * | 2007-05-09 | 2008-11-12 | 大连信瑞科技有限公司 | Automatic soft shaft brush |
| KR100823975B1 (en) * | 2007-06-27 | 2008-04-22 | 권영민 | The electrical insulator cleaning device in which the rotator rotating on its own axis is equipped |
| CN202555513U (en) * | 2012-05-04 | 2012-11-28 | 徐州工业职业技术学院 | Cleaning device of street lamp |
| CN203862586U (en) * | 2014-05-10 | 2014-10-08 | 常州泽众机电科技有限公司 | Insulator electrified cleaner |
| CN105057245A (en) * | 2015-08-21 | 2015-11-18 | 国家电网公司 | Porcelain-bottle cleaning machine |
| CN206122102U (en) * | 2016-10-14 | 2017-04-26 | 昆山久庆塑胶有限公司 | From cleaning type hot melt rifle |
| CN206981248U (en) * | 2017-04-18 | 2018-02-09 | 洛阳沣诚生物科技有限公司 | A kind of advertisement on wire pole remove device |
| CN207371983U (en) * | 2017-10-24 | 2018-05-18 | 西南石油大学 | A kind of petroleum pipeline cleaning device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111839354A (en) * | 2020-07-30 | 2020-10-30 | 合肥鑫峰机械科技有限责任公司 | Energy-concerving and environment-protective cleaning device based on building post |
| CN111839354B (en) * | 2020-07-30 | 2021-07-27 | 河北建研建筑设计有限公司 | Energy-concerving and environment-protective cleaning device based on building post |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110280515B (en) | 2021-09-14 |
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Effective date of registration: 20210825 Address after: 311899 16-01, GANGLONG decoration City, No.17, Ji'nan street, Zhuji City, Shaoxing City, Zhejiang Province Applicant after: Zhuji Huajiang Engineering Design Consulting Co.,Ltd. Address before: 063000 No.9 Changning Road, Lubei District, Tangshan City, Hebei Province Applicant before: Xu Fengqiu |
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