CN103909567B - A kind of roller brush and concrete die station clearing apparatus - Google Patents
A kind of roller brush and concrete die station clearing apparatus Download PDFInfo
- Publication number
- CN103909567B CN103909567B CN201410128468.9A CN201410128468A CN103909567B CN 103909567 B CN103909567 B CN 103909567B CN 201410128468 A CN201410128468 A CN 201410128468A CN 103909567 B CN103909567 B CN 103909567B
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- CN
- China
- Prior art keywords
- brush
- watt
- roll shaft
- clearing apparatus
- die station
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/38—Treating surfaces of moulds, cores, or mandrels to prevent sticking
- B28B7/386—Cleaning
-
- 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
- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Brushes (AREA)
Abstract
The invention discloses a kind of roller brush and concrete die station clearing apparatus, this roller brush includes brush filament, brush watt and roll shaft, wherein: described brush filament is arranged on the outer wall of described brush watt, the outer wall laminating of the inwall of described brush watt and described roll shaft；Described brush watt is open architecture at circumferencial direction, and described brush watt is removably installed on described roll shaft at open.Brush watt, when brush filament needs to change because of reasons such as abrasions, can directly be removed from roll shaft, and install new brush watt, have roll shaft and exempt to tear open the feature exempting to change by the present invention, changes quick, simple, and labour intensity is little, it is possible to decrease production cost and use cost.
Description
Technical field
The invention mainly relates to concrete prefabricated technical field, specifically, relate to a kind of roller brush, and bag
Include the concrete die station clearing apparatus of this roller brush.
Background technology
In prior art, the die station clearing apparatus used in concrete prefabricated field, including frame and can turning
The rod brush being arranged in frame, this roller brush can clean the concrete residue on table top dynamicly.This roller brush weight is relatively
Greatly, about 150kg, and generally monolithic construction, nylon yarn or Du Pont's silk are directly planted in rotating main shaft
Surface.
After this die station clearing apparatus uses a period of time, nylon yarn or Du Pont's silk on roller brush can be by certain
The abrasion of degree.In order to ensure the cleaning effect of rod brush, need rod brush is replaced.Due to tradition rod brush
For monolithic construction, thus must integral replacing.
The step that tradition rod brush is changed is as follows: 1) prepare roller brush suspender；2) bearing at rod brush two ends is removed
Seat；3) roller brush is hung out；4) lift new roller and brush installation site；5) mounted roller brush two end axles bearing；
6) axiality etc. installed by debugging roller brush setting height(from bottom), bearing.
From the exchonge step of above roller brush, its Renewal process is loaded down with trivial details, the longest, and labour intensity is big.And
And owing to the weight of tradition single roller brush is big, so its operating difficulties, change difficulty bigger.Further, since
Using the mode of integral replacing, the main shaft that can be continuing with also needs to change together, and client's use cost is too high.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of roller brush, it is possible to resolve prior art is changed consumption
Duration, change difficulty is big, use cost is high defect or at least one.
The roller brush of the present invention, including brush filament, brush watt and roll shaft, wherein:
Described brush filament is arranged on the outer wall of described brush watt, and the inwall of described brush watt pastes with the outer wall of described roll shaft
Close；
Described brush watt is open architecture at circumferencial direction, and described brush watt is removably installed on described at open
On roll shaft.
Further, described brush watt is in a circumferential direction less than or equal to 1/2nd circumference, the number of described brush watt
Amount is for multiple.
Further, described brush watt is in a circumferential direction more than 1/2nd circumference, and described brush watt is by elasticity
Material is made.
Further, described brush watt is integrally formed helical structure, or, described brush filament is integrally formed spiral
Shape structure.
Further, described brush filament includes at least two sections outside described roll shaft, and the brush filament at two ends forms spirality
Structure and the hand of spiral are contrary.
Further, the brush watt on described roll peripheral direction is integrally formed columnar structured.
Further, described roll shaft axially include at least two sections of two sections of described columnar structured, adjacent circles
In tubular construction, wherein one section forms the first axial jointing line between brush watt, and another section is between brush watt
Form the second axial jointing line, the extended line of described first jointing line and the extended line of described second jointing line
Misaligned.
Further, described brush watt covers the outer wall of described roll shaft in circumferencial direction and/or axial upper part.
Further, one of them edge of adjacent described brush watt arranges the first engaging piece, another edge
Arranging the second engaging piece, described first engaging piece coordinates with described second engaging piece.
Another aspect of the present invention, also provides for a kind of concrete die station clearing apparatus, and it includes aforementioned arbitrary
Roller brush described in Xiang.
The roller brush of the present invention and concrete die station clearing apparatus, install brush watt outside roll shaft, and brush filament is installed on
On this brush watt.When brush filament needs to change because of abrasion, brush watt directly can be removed from roll shaft, and install new
Brush watt.The present invention solves the defect that prior art Replacement procedure is loaded down with trivial details, has roll shaft and exempts to tear the spy exempting to change open
Point, nor lift heavy problem can be considered relatively greatly because changing component weight, change quick, simple, work
Intensity is little.
The present invention uses the brush watt structure separated with roll shaft, forms composite roll brush, can according to brush filament everywhere not
Same state of wear, carries out local replacing selectively, reduces client's use cost.
It addition, the brush watt of the present invention is easily achieved modularization, General design, for the roll shaft of different length,
The single of brush watt kind can be kept by modularized design, decrease part category, reduce production cost,
There is significant economic benefit.
Accompanying drawing explanation
The accompanying drawing of the part constituting the present invention is used for providing a further understanding of the present invention, and the present invention shows
Meaning property embodiment and explanation thereof are used for explaining the present invention, are not intended that inappropriate limitation of the present invention.At accompanying drawing
In:
Fig. 1 is the structural representation of the roller brush of first embodiment of the invention；
Fig. 2 is the embodiment illustrated in fig. 1 structural representation in another orientation；
Fig. 3 is brush watt and the structural representation of brush filament part of one embodiment of the invention；
Fig. 4 is the structural representation of the roller brush of second embodiment of the invention；
Fig. 5 is the structural representation of the roller brush of third embodiment of the invention；
Fig. 6 is the structural representation of the roller brush of fourth embodiment of the invention；
Fig. 7 is the structural representation of the roller brush of fifth embodiment of the invention；
Fig. 8 is the embodiment illustrated in fig. 7 structural representation in another orientation；
Fig. 9 is the structural representation of the roller brush of sixth embodiment of the invention；
Figure 10 is the structural representation of the roller brush of seventh embodiment of the invention.
Description of reference numerals:
Brush filament-1 brush watt-2
Roll shaft-3 first jointing line-41
Second jointing line-42
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the present invention and the feature in embodiment
Can be mutually combined.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
It is the structural representation of the roller brush of first embodiment of the invention shown in Fig. 1 and Fig. 2, wherein aobvious in Fig. 1
Show circumferencial direction structure, Fig. 2 has shown axial arrangement.The roller brush of this first embodiment include brush filament 1,
Brush watt 2 and roll shaft 3, this roller brush can be applicable to such as concrete die station clearing apparatus or other multiple possible case.
Brush filament 1 is arranged on the outer wall of brush watt 2, and can stretch out from the outer wall of brush watt 2.This brush filament 1 is permissible
For materials such as nylon yarn or Du Pont's silks, it is also possible to according to actual condition needs, by the brush filament 1 group of unlike material
Conjunction is arranged on same brush watt 2.For the ease of the installation of brush filament 1, multiple aperture can be offered on brush watt 2,
Brush filament 1 is implanted in each aperture.Brush filament 1 can also use alternate manner to be such as integrally formed etc. and be arranged at brush watt 2
On.Preferably brush filament 1 forms multi beam at brush watt 2 outer wall regularly.
The inwall of brush watt 2 is fitted with the outer wall of roll shaft 3, can be that part is fitted or fits completely, this brush watt
2 is open architecture at circumferencial direction, and brush watt 2 is removably installed on this roll shaft 3 at open.At Fig. 1
With the part shown in Fig. 2, roll shaft 3, at circumferencial direction and the outer wall that is axially covered with roll shaft 3, is wrapped by brush watts 2
It is wrapped in inside brush watt 2.
Indication open architecture of the present invention is for enclosed construction, and it has at opening at circumferencial direction,
As cracked, trimming or opening etc..In the embodiment shown in Fig. 1 and Fig. 2, brush watt 2 is in a circumferential direction
Less than or equal to 1/2nd circumference, the quantity of brush watt 2 is multiple.This brush watt 2 is arcuate structure.At brush watt
When the quantity of 2 is two, brush watt 2 splicing of upper and lower, roll shaft 3 is covered.
The present invention can form multiple mounting modes between roll shaft 3 and brush watts 2, with realize brush watt 2 relative to
The installation of roll shaft 3 and disengaging.As a kind of embodiment, brush watt removably connects between 2 and roll shaft 3,
As being provided with screw on roll shaft 3, when being installed in this screw through the screw of brush watt 2, brush watt can be made
The outer wall laminating of the inwall of 2 and roll shaft 3；When this screw is extracted from screw, brush watt 2 departs from roll shaft 3.
As another embodiment, when the quantity of brush watt 2 is multiple, between each brush watt 2 removably
Connect, during installation brush watts 2 by roll shaft 3 banding inside brush watt 2.By bearing pin, spiral shell between each brush watt 2
The modes such as bolt realize connecting, similarly can be so that the installation of brush watts 2, dismantling and change.Additionally, should
Clear, use the combination of above two embodiment, or other possible mode, be capable of this equally
The technique effect of invention.
Further, in order to reduce the securing member needed for brush watts 2 connects, also can be in adjacent brush watt 2 wherein
Individual edge arranges the first engaging piece, and another edge arranges the second engaging piece, the first engaging piece and second
Engaging piece coordinates.The groove and bulge-structure cooperated can be set on the first engaging piece and the second engaging piece.
Fig. 4 is the structural representation of the roller brush of second embodiment of the invention.The roller brush of this second embodiment also wraps
Including brush filament 1, brush watt 2 and roll shaft 3, the structure of each several part is referred to the description of first embodiment.Different
It is that, in aforementioned first embodiment, each brush watt 2 on roll shaft 3 circumferencial direction is integrally formed columnar structured；
And in a second embodiment, each brush watt 2 is integrally formed helical structure.The pitch of this helical structure is permissible
Be configured according to actual condition, when pitch is bigger, it can be seen that have the outer wall of part roll shaft 3 not by
Brush watt 2 covers.It should be clear that as another kind of implementation, each brush filament 1 is also integrally formed spirality
Structure.Use this version, can as required residue be cleaned (as towards the one of die station to a direction
Side), so it is easy to residue is processed.
Fig. 5 is the structural representation of the roller brush of third embodiment of the invention.3rd embodiment also includes aforementioned
Brush filament 1, brush watts 2 and roll shaft 3, specifically refer to preceding description.Except for the difference that, in the first embodiment,
By watt splicing of two pieces of brushes, roll shaft 3 is covered in a circumferential direction；And in the third embodiment, at circumferencial direction
On watt be spliced to form by four pieces of brushes.It should be clear that the brush watt 2 of circumferencial direction be other quantity such as three,
Five, six etc. time, be capable of the technique effect of the present invention equally.
When being formed columnar structured, axially on can only include one section, preferably include at least two sections.If
In a circumferential direction by M brush watt splicing, N section, then the brush watt sum on roll shaft 3 are set in the axial direction
For M × N number of.Further, in order to improve structural strength, preferably in two adjacent cylindrical section shape structures,
Wherein one section forms the first axial jointing line 41 between brush watt 2, and another section forms axle between brush watt 2
To the second jointing line 42, the extended line of the first jointing line 41 and the extended line of the second jointing line 42 are misaligned,
Specifically it is referred to the 4th embodiment shown in Fig. 6.The quantity of the first jointing line 41 is a plurality of, with circumference
Brush watt 2 quantity on direction is consistent.
It is the structural representation of the roller brush of fifth embodiment of the invention shown in Fig. 7 and Fig. 8, wherein aobvious in Fig. 7
Show circumferencial direction structure, Fig. 8 has shown axial arrangement.5th embodiment also includes aforesaid brush filament
1, brush watt 2 and roll shaft 3, specifically refer to preceding description.Except for the difference that, in the first embodiment, brush watt
2 circumferencial direction and axially on be covered with roll shaft 3；And in the 5th embodiment, brush watts 2 circumferencial direction and/
Or axially upper part covers the outer wall of roll shaft 3.By this local arrangement, actual condition need can be met
Want.
It it is the structural representation of the roller brush of sixth embodiment of the invention shown in Fig. 9.This sixth embodiment also includes
Aforesaid brush filament 1, brush watt 2 and roll shaft 3, specifically refer to preceding description.Except for the difference that, in aforementioned enforcement
In example, take the version that cylindrical shape or spirality etc. are single；And in the sixth embodiment, brush filament 1 exists
Including at least two sections on roll shaft 3, the brush filament 1 at two ends forms helical structure and the hand of spiral is contrary, overall
Form fabricated structure.Residue can be caught up with to middle or both sides when cleaning, optimize and clean effect.Preferably brush
Silk 1 includes three sections, and the brush filament of mid portion can be columnar structured or other may.
It it is the structural representation of the roller brush of seventh embodiment of the invention shown in Figure 10.7th embodiment also includes
Aforesaid brush filament 1, brush watt 2 and roll shaft 3, specifically refer to preceding description.Except for the difference that, in aforementioned each reality
Executing in example, brush watt 2 is in a circumferential direction less than or equal to 1/2nd circumference, and the quantity of brush watt 2 is multiple；
And in the 7th embodiment, brush watt 2 is in a circumferential direction more than 1/2nd circumference, and this brush watt 2 is by bullet
Property material is made.It can be seen that this brush watt 2 includes that one cracks, can be from this cracks during installation
Breaking into two with one's hands, after installation, brush watt 2 recovers, and can realize the technique effect of the present invention equally.
It should be noted that for the aforementioned brush watt 2 being less than or equal to 1/2nd circumference, it is possible to by elastic material
Material is made, and this elastomeric material can be metal or nonmetallic materials, as long as can launch at open, and can be multiple
Position, to original size, can realize the technique effect of the present invention.
For the roller brush of foregoing embodiments of the present invention, installing brush watt 2 outside roll shaft 3, brush filament 1 is installed
On this brush watt 2.When brush filament 1 needs to change because of reasons such as abrasions, can be by brush watt 2 directly from roll shaft 3
Upper dismounting, and install new brush watt 2(or directly on the brush watt 2 unloaded with the brush filament 1 renewed, make brush
Watt can reuse), it is possible to resolve the defect that prior art Replacement procedure is loaded down with trivial details, there is roll shaft and exempt to tear open and exempt to change
Feature, nor can be relatively big and consider lift heavy problem because changing component weight, change quickly, simple,
Labour intensity is little.It addition, the present invention also can arrange multiple possibility according to specifically used needs on roll shaft 3
The brush watt 2 of form and brush filament 1, improve cleaning effect.
All use brush watt 2 structures separated with roll shaft 3 due to foregoing embodiments, form composite roll brush,
Local replacing can be carried out selectively according to the different state of wear of brush filament 1 everywhere, reduces client and make
Use cost.Brush watt 2 is easily achieved modularization, General design, for the roll shaft 3 of different length, can lead to
Cross modularized design and keep the single of brush watt kind, decrease part category, reduce production cost, have
Significantly economic benefit.
In addition to the roller brush of previous embodiment, the present invention also provides for a kind of concrete die station including aforementioned roller brush
Clearing apparatus.This concrete mould table apparatus may also include frame, driver part and controller, driver part with
Aforementioned roll shaft 3 connects, and this roll shaft 3 is installed in frame by bearing, and controller is connected with driver part,
For controlling the action (start and stop, rotating speed etc.) of driver part.This driver part can be the rotation such as motor or motor
Rotary driving device, it is preferable that driver part both can realize rotating forward and also can realize reversion.
In the course of the work, aforementioned brush filament 1 directly contacts with concrete residue, it to be removed from table top.
Roll shaft 3 can rotate under driver part, it is possible to by the effect driven rotation of frictional force, all can realize this
Invention cleans the purpose of concrete residue.
The concrete die station clearing apparatus of the present invention, owing to have employed aforesaid roller brush, at needs with changing brush watt
Or during brush filament, it is not necessary to dismounting roll shaft 3 and bearing, brush watt 2 directly can be removed from roll shaft 3, and
Install new brush watt 2(or directly on the brush watt 2 unloaded with the brush filament 1 renewed, make brush watt to repeat
Utilize), it is possible to resolve the defect that prior art Replacement procedure is loaded down with trivial details.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this
Within bright spirit and principle, any modification, equivalent substitution and improvement etc. made, should be included in this
Within bright protection domain.
Claims (8)
1. a concrete die station clearing apparatus, including frame, driver part, roller brush and controller, it is special
Levying and be, described roller brush includes brush filament (1), brush watt (2) and roll shaft (3), wherein:
Described brush filament (1) is arranged on the outer wall of described brush watt (2), the inwall of described brush watt (2) and institute
State the outer wall laminating of roll shaft (3)；
Described driver part is connected with described roll shaft (3), and described roll shaft (3) is installed in frame, described
Controller is connected with described driver part, for controlling the start and stop of described driver part and/or rotating speed and/or positive and negative
Rotate and make；
Described brush watt (2) is open architecture at circumferencial direction, and described brush watt (2) is removably at open
It is installed on described roll shaft (3)；
Described brush watt (2) is integrally formed helical structure, or, described brush filament (1) is integrally formed spiral
Shape structure.
Concrete die station clearing apparatus the most according to claim 1, it is characterised in that described brush watt (2)
In a circumferential direction less than or equal to 1/2nd circumference, the quantity of described brush watt (2) is multiple.
Concrete die station clearing apparatus the most according to claim 1, it is characterised in that described brush watt (2)
In a circumferential direction more than 1/2nd circumference, and described brush watt (2) is made up of elastomeric material.
4. according to the concrete die station clearing apparatus described in any one of claim 1-3, it is characterised in that institute
Stating brush filament (1) and include at least two sections outside described roll shaft (3), the brush filament (1) at two ends forms spirality knot
Structure and the hand of spiral are contrary.
5. according to the concrete die station clearing apparatus described in any one of claim 1-3, it is characterised in that institute
The brush watt (2) stated on roll shaft (3) circumferencial direction is integrally formed columnar structured.
Concrete die station clearing apparatus the most according to claim 5, it is characterised in that described roll shaft (3)
Axially include at least two sections described columnar structured, in two adjacent cylindrical section shape structures, wherein one section
Forming axial the first jointing line (41) between brush watt (2), another section is formed axially between brush watt (2)
The second jointing line (42), the extended line of described first jointing line (41) and described second jointing line (42)
Extended line misaligned.
7. according to the concrete die station clearing apparatus described in any one of claim 1-3, it is characterised in that institute
State brush watt (2) and cover the outer wall of described roll shaft (3) in circumferencial direction and/or axial upper part.
8. according to the concrete die station clearing apparatus described in any one of claim 1-3, it is characterised in that phase
One of them edge of adjacent described brush watt (2) arranges the first engaging piece, and another edge arranges the second engagement
Portion, described first engaging piece coordinates with described second engaging piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410128468.9A CN103909567B (en) | 2014-03-31 | 2014-03-31 | A kind of roller brush and concrete die station clearing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410128468.9A CN103909567B (en) | 2014-03-31 | 2014-03-31 | A kind of roller brush and concrete die station clearing apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103909567A CN103909567A (en) | 2014-07-09 |
| CN103909567B true CN103909567B (en) | 2016-09-07 |
Family
ID=51035721
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410128468.9A Active CN103909567B (en) | 2014-03-31 | 2014-03-31 | A kind of roller brush and concrete die station clearing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103909567B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104399689B (en) * | 2014-11-15 | 2016-04-06 | 肖金坚 | A kind of cleaning equipment of concrete-agitating axle of circulation type |
| CN104669419B (en) * | 2015-03-10 | 2017-04-26 | 盐城工学院 | Bellmouth filler ring demolding cleaning machine |
| CN106269605A (en) * | 2016-10-25 | 2017-01-04 | 王伟 | Rolling brush component structure of photovoltaic robot |
| CN106583377A (en) * | 2016-12-30 | 2017-04-26 | 瓮安贵黔现代化农业科技发展有限公司 | Groove cleaning device |
| AT16967U1 (en) * | 2019-10-04 | 2021-01-15 | Hoessl Gmbh | Cleaning brush for a conveyor belt |
| CN112060297B (en) * | 2020-09-14 | 2021-07-16 | 中国建筑第二工程局有限公司 | Method for treating concrete prefabricated part casting die |
| CN112895218B (en) * | 2021-03-31 | 2022-09-20 | 鹰潭余江区顺用科技有限公司 | Tire rubber's recovery processing equipment |
| CN113668352B (en) * | 2021-09-02 | 2023-07-28 | 金华市成喜科技发展有限公司 | Device for layering and stripping aged asphalt on surface of reclaimed asphalt pavement material |
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|---|---|---|---|---|
| GB189913639A (en) * | 1899-07-01 | 1899-08-05 | Wright Rhodes | Improvements in or applicable to Apparatus for Stripping and Cleaning "Flats" used in Carding Engines. |
| CN201458315U (en) * | 2009-06-12 | 2010-05-12 | 云南昆船设计研究院 | Slice brush bucket |
| CN201473040U (en) * | 2009-08-26 | 2010-05-19 | 成都市新筑路桥机械股份有限公司 | Chevron pattern belt conveyer head cleaner |
| CN202170485U (en) * | 2011-06-02 | 2012-03-21 | 天津天保园林环卫发展有限公司 | Road sweeping roller brush |
| CN202953530U (en) * | 2012-12-14 | 2013-05-29 | 牡丹江市恒田发电设备有限公司 | Rotary-drum sweeper |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB189913639A (en) * | 1899-07-01 | 1899-08-05 | Wright Rhodes | Improvements in or applicable to Apparatus for Stripping and Cleaning "Flats" used in Carding Engines. |
| CN201458315U (en) * | 2009-06-12 | 2010-05-12 | 云南昆船设计研究院 | Slice brush bucket |
| CN201473040U (en) * | 2009-08-26 | 2010-05-19 | 成都市新筑路桥机械股份有限公司 | Chevron pattern belt conveyer head cleaner |
| CN202170485U (en) * | 2011-06-02 | 2012-03-21 | 天津天保园林环卫发展有限公司 | Road sweeping roller brush |
| CN202953530U (en) * | 2012-12-14 | 2013-05-29 | 牡丹江市恒田发电设备有限公司 | Rotary-drum sweeper |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103909567A (en) | 2014-07-09 |
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Owner name: HUNAN SANY KUAIERJU RESIDENTIAL INDUSTRIES CO., LT Free format text: FORMER OWNER: SANY AUTOMOBILE MANUFACTURING CO., LTD. Effective date: 20150529 |
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