CN109972584A - A kind of device for expelling ice and snow and application method applied to railway frog flangeway - Google Patents
A kind of device for expelling ice and snow and application method applied to railway frog flangeway Download PDFInfo
- Publication number
- CN109972584A CN109972584A CN201910345268.1A CN201910345268A CN109972584A CN 109972584 A CN109972584 A CN 109972584A CN 201910345268 A CN201910345268 A CN 201910345268A CN 109972584 A CN109972584 A CN 109972584A
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- China
- Prior art keywords
- ice
- snow
- collecting means
- railway frog
- expelling
- 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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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000004140 cleaning Methods 0.000 claims abstract description 40
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 210000000515 tooth Anatomy 0.000 description 11
- 230000000694 effects Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 244000007853 Sarothamnus scoparius Species 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 241000533950 Leucojum Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H8/00—Removing undesirable matter from the permanent way of railways; Removing undesirable matter from tramway rails
- E01H8/02—Methods or apparatus for removing ice or snow from railway tracks, e.g. using snow-ploughs ; Devices for dislodging snow or ice which are carried or propelled by tramway vehicles ; Moving or removing ballast
- E01H8/04—Methods or apparatus for removing ice or snow from railway tracks, e.g. using snow-ploughs ; Devices for dislodging snow or ice which are carried or propelled by tramway vehicles ; Moving or removing ballast essentially by non-driven elements ; Clearing instruments, e.g. scraping blades or scoop plates
Abstract
The invention discloses a kind of device for expelling ice and snow and application method applied to railway frog flangeway, it, which solves ice and snow in railway frog flangeway in the prior art, is inconvenient to abolish, the problem of abolishing low efficiency, with convenient for being abolished to ice and snow, abolish the high beneficial effect of operating efficiency, its scheme is as follows: a kind of device for expelling ice and snow applied to railway frog flangeway, including ice and snow collecting means, the side of ice and snow collecting means is zigzag, the lower surface of ice and snow collecting means sets gradually the roller bearing moved forward or back convenient for ice and snow collecting means from jagged side to the other side, for the scraper plate of further ice-breaking and for removing the trifling cleaning brush of the ice and snow left in railway frog flangeway.
Description
Technical field
The present invention relates to field of track traffic, more particularly to a kind of device for expelling ice and snow applied to railway frog flangeway and make
Use method.
Background technique
Railway frog is the equipment of path level-crossing, is the equipment for instigating wheel to cross another strand of rail by one rail, it
It is a very important equipment in track switch, its superiority and inferiority and state directly affect the driving safety of train, the northern area of China
Winter weather is more cold, and track switch is easy to by snow and ice cover when snowfall, and track switch ground is easy to freeze, if ice disaster fails
Cleaning in time influences being normally carried out for station receiving and dispatching trains operation or shunting service, even blocks railway terminal when serious, because
This needs to carry out deicing operation to positions such as the railway frog flangeways of track switch in time.
Railway frog flangeway width is smaller, and railway frog flangeway width is usually less than equal to 46mm, and without dedicated deicing equipment,
Traditional minimizing technology is mainly include the following types: (1) first carries out ice-breaking with common flat chisel, and ice-breaking efficiency is lower, then broom
It removes, such operating personnel's large labor intensity, operating efficiency is low；(2) relatively advanced method can be used snowblower and be cleaned, but
Snowblower can not carry out deicing operation, not be suitable for the case where freezing again after snow melts, and blow away snowflake and can also descend slowly and lightly again and make
It is not thorough at cleaning；(3) operating personnel is carry small-sized gas tank and is burnt using blowtorch, and snow-broth is evaporated in ice dissolution, this
Kind operating efficiency is lower, and the activity duration is long, and required personnel are more, and personnel's weight bearing is big.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of device for expelling ice and snow applied to railway frog flangeway,
Deicing low efficiency is high, and labor intensity is low, and processing cost is low, and deicing effect is good.
A kind of concrete scheme of the device for expelling ice and snow applied to railway frog flangeway is as follows:
A kind of device for expelling ice and snow applied to railway frog flangeway, including ice and snow collecting means, the side of ice and snow collecting means are saw
Dentation, the lower surface of ice and snow collecting means are set gradually from jagged side to the other side convenient for ice and snow collecting means forward or backward
Roller bearing, for the scraper plate of further ice-breaking and for removing the trifling cleaning brush of the ice and snow left in railway frog flangeway.
Above-mentioned device for expelling ice and snow can effectively be abolished effective for the ice and snow in railway frog flangeway, then by scraping
The setting of plate, in ice and snow collecting means moving process, further secondary to ice and snow progress to abolish, ice and snow collecting means are used for main
Ice and snow be collected, then again by scraper plate and cleaning brush it is trifling to the ice and snow being retained in below ice and snow collecting means carry out it is secondary
It effectively removes.
Further, the operation to ice and snow collecting means for convenience, the ice and snow collecting means are relative to jagged another
Handle is arranged in side.
Further, handle is arranged relative to the end of the ice and snow collecting means in the handle.
Further, the ice and snow collecting means are additionally provided with idler wheel in the side of the cleaning brush in order to ice and snow collecting means
It is mobile, and idler wheel and the scraper plate are respectively arranged on the two sides of the cleaning brush, the setting of idler wheel facilitates ice and snow collecting means first
Rolling, consequently facilitating ice and snow collecting means slide forward.
Further, the roller bearing circumferential direction is equipped with spine with to the further ice-breaking of ice and snow, in this way in ice and snow collecting means to ice
After snow carries out an ice-breaking, secondary ice-breaking is then carried out to ice and snow by the spine of roller bearing.
Further, the arc-shaped structure of ice and snow collecting means, and ice and snow collecting means upper surface removes jagged side
It is folded upward at, collects more ice and snow in this way convenient for ice and snow collecting means, and effectively avoid ice and snow from the side of ice and snow collecting means
It falls.
Further, described scraper plate one end and the ice and snow collecting means are connected, and the other end is free end, and scraper plate is relative to institute
It states ice and snow collecting means lower surface to be obliquely installed, scraper plate bends setting close to the side of free end, and scraper plate is towards ice and snow collecting means
Jagged side bending.
Further, the cleaning brush is obliquely installed relative to ice and snow collecting means lower surface, and cleaning brush is far from ice
The one end for avenging collecting means is equipped with wire brush, and wire brush is more effective for cleaning railway frog flangeway, because ice and snow collecting means make
With in the process, being with ground in set angle, to facilitate zigzag side to carry out ice-breaking, and the scraper plate being obliquely installed more added with
The cleaning effectively abolished, and be obliquely installed conducive to the ice and snow that do not abolish by trifling utmostly to clean up.
Further, the roller bearing is movably arranged at support shaft, and the both ends of support shaft are connected to the ice and snow by connecting rod
Collecting means.
The present invention also provides a kind of application methods of device for expelling ice and snow applied to railway frog flangeway, comprising:
Ice-breaking is carried out to the ice and snow in railway frog flangeway with the zigzag of ice and snow collecting means front side, and passes through ice and snow
Collecting means are collected the ice and snow abolished；
Ice and snow collecting means are moved under the drive of roller bearing along railway frog flangeway；
Ice and snow further progress is abolished using scraper plate, and is cleaned by the way that cleaning brush is trifling to the ice and snow left.
Compared with prior art, the beneficial effects of the present invention are:
1) present invention is by the setting of device for expelling ice and snow, can carry out effectively abolishing to the ice and snow of railway frog flangeway and clearly
It sweeps, multiple structures, which cooperate, improves deicing efficiency, and is able to achieve the collection and cleaning of ice and snow, and processing cost is low, labor intensity
It is low, it timely and effectively can quickly remove the snow, clear ice, fortune snow.
2) present invention not only facilitates the movement of device for expelling ice and snow, but also point is arranged in roller bearing side by the setting of roller bearing
Thorn, spine is in untreated ice and snow surface scrolls, convenient for carrying out secondary ice-breaking to ice and snow.
3) present invention also facilitates the third time ice-breaking to ice and snow by the setting of scraper plate, in this way in scraper plate and roller bearing point
Under the setting effect of thorn, be conducive to effectively abolish the ice and snow below ice and snow collecting means.
4) present invention is set to the rear of scraper plate by cleaning brush, is further abolished in roller bearing spine and scraper plate to ice and snow
Afterwards, it is effectively cleaned by cleaning brush, without being cleaned again separately through broom, effectively increases ice and snow cleaning
Speed and efficiency.
5) present invention passes through the setting of ice and snow collecting means, and not only side, which facilitates, abolishes ice and snow, but also can be effective
Ice and snow is collected, realizes collecting when abolishing for ice and snow, excessive ice and snow is avoided to be retained in railway frog flangeway.
6) present invention is by integrally-built setting, the ice for the various grades that can be subjected in face of railway frog flangeway calmly
The cleaning of diversified forms, multiple ice-breaking and ice and snow is integrated in one by snow disaster evil, has snow removing, deicing, the integrated unique function of fortune snow
Can, it realizes one time completely, is not necessarily to heavy operation, deicing is high-efficient, removing speed is fast, sensitive, save trouble and labor simple to operation
Saving of labor, deicing excellent effect.
Detailed description of the invention
The Figure of description for constituting a part of the invention is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.
Fig. 1 is overall structure figure in the embodiment of the present invention 1；
In figure, 1. rake teeths, 2. ice and snow collecting means, 3. roller bearings, 4. scraper plates, 5. cleaning brushes, 6. idler wheels, 7. handles, 8. handles,
9. connecting rod.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the present invention.Unless another
It indicates, all technical and scientific terms used herein has usual with general technical staff of the technical field of the invention
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to exemplary embodiments of the present invention.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
Embodiment 1
As background technique is introduced, the deficiencies in the prior art, in order to solve technical problem as above, this hair
It is bright to provide a kind of device for expelling ice and snow applied to railway frog flangeway, as shown in Figure 1, including ice and snow collecting means 2, ice and snow collecting means
2 can be ice and snow collection bucket, and for temporarily storing ice and snow, staff passes through the ice and snow that ice and snow collection bucket will can also temporarily store
Topple over away, the side of ice and snow collecting means 2 is zigzag, and rake teeth 1 is arranged in the front side of such ice and snow collecting means, and rake teeth 1 is warp
Crossing the stainless steel sharp tooth of processing of putting the first edge on a knife or a pair of scissors, (rake teeth 1 is an integral structure with ice and snow collecting means, and the root of each 1 pointed tooth of rake teeth is wide
Degree is less than 0.8mm, and the front end of such ice and snow collecting means 2 is less than or equal to 46mm, and the size on rear side of ice and snow collecting means can incrementally increase,
Railway frog flangeway width≤46mm), the lower surface of ice and snow collecting means 2 is set gradually from jagged side to the other side convenient for ice
The roller bearing 3 of the snow forward or backward of collecting means 2 is left for the scraper plate 4 of further ice-breaking and for removing in railway frog flangeway
The trifling cleaning brush 5 of ice and snow.
2 material of ice and snow collecting means is stainless steel, and front end is equipped with 6 rake teeths 1, the arc-shaped structure of ice and snow collecting means 2, and ice and snow
2 upper surface of collecting means removes jagged side and is folded upward at, and collects more ice and snow in this way convenient for ice and snow collecting means, and have
Effect avoids ice and snow from falling from the side of ice and snow collecting means 2.
Handle 7 is arranged relative to the jagged other side in operation to ice and snow collecting means 2 for convenience, ice and snow collecting means 2.
Handle 8 is arranged relative to the end of the ice and snow collecting means 2 in handle 7, and handle 8 and handle 7 constitute T font, further, handle
8 left and right sides are equipped with antiskid glue sleeve, and antiskid glue sleeve is equipped with mesh antiskid line, and by the setting of handle, Manual-pushing handle is being rolled
Under the action of axis 3 and idler wheel 6 are arranged, convenient for the Forward of ice and snow collecting means 2.
In some embodiments, handle 7 is retractable structure, concretely electric structure or manual telescopic structure, herein
It repeats no more.
Ice and snow collecting means 2 are additionally provided with idler wheel 6 in the side of the cleaning brush 5 in order to the movement of ice and snow collecting means 2, and roll
Wheel 6 is respectively arranged on the two sides of cleaning brush 5 with the scraper plate 4, and the setting of idler wheel 6 facilitates the rolling of ice and snow collecting means 2 first, from
And slided forward convenient for ice and snow collecting means 2, it is to be understood that idler wheel 6 is set to the two sides of ice and snow collecting means, or is set to ice and snow
The middle part of 2 lower surface of collecting means, the setting of idler wheel 6 facilitate support and promotion to ice and snow collecting means, the distance in setting
Cleaning brush 5 has set distance, and when in use, the spine of 3 lowermost end of roller bearing, the bottom end of cleaning brush and idler wheel lowermost end can be same
Horizontal plane.
Further, the circumferential spine that is equipped with of roller bearing 3 is with to the further ice-breaking of ice and snow, in this way in ice and snow collecting means 2 to ice and snow
After carrying out an ice-breaking, secondary ice-breaking is then carried out to ice and snow by the spine of roller bearing 3,3 activity of roller bearing is placed on support shaft, supports
The both ends of axis are connected to the ice and snow collecting means 2 by connecting rod 9, and in the present embodiment, roller bearing 3 is circumferential to be equipped with four row's spines,
It is symmetrically arranged, spine can be obliquely installed relative to 3 outer peripheral surface of roller bearing, and thorn is high to be no more than 0.5mm, in Manual-pushing handle 7 and ice
When avenging collecting means 2, roller bearing 3 is rotated relative to support shaft, to push ice and snow collecting means 2 together with idler wheel 6.
In addition, in order to avoid ice and snow is bad abolish after, avoid the power to roller bearing 3 and spine excessive, wherein connecting rod is bullet
Property part, connecting rod preferentially select with setting rigidity spring to provide buffering and cushioning effect.
4 one end of scraper plate and the ice and snow collecting means 2 are connected, and the other end is free end, and scraper plate 4 is collected relative to the ice and snow
2 lower surface of part is obliquely installed, and is specifically tilted towards 1 direction of rake teeth, and scraper plate 4 bends setting, and scraper plate 4 close to the side of free end
It bends towards the jagged side of ice and snow collecting means 2, ice and snow can effectively be abolished from the side of ice and snow in this way.
Wherein, the two sides that scraper plate 4 is bent are rectangle, and bottom end is put the first edge on a knife or a pair of scissors, and are Stainless Steel system, and 4 top of scraper plate is received with ice and snow
Collection 2 lower surface of part is weldingly connected.
Cleaning brush 5 is obliquely installed relative to 2 lower surface of ice and snow collecting means, and the size of cleaning brush 5 can be set greater than 46mm
It sets, with the ice and snow of comprehensive collection overflow, equally in a state of use, cleaning brush 5 is tilted towards 1 direction of rake teeth, and is cleaned
Brush 5 includes cleaning brush ontology, and cleaning brush ontology and ice and snow collecting means 2 weld, the one end of cleaning brush ontology far from ice and snow collecting means 2
Equipped with wire brush, wire brush is detachably arranged relative to cleaning brush ontology, and specific wire brush is gathered by shell, and shell is logical
The setting for crossing card slot and protrusion effectively realizes that detachably convenient for the replacement to wire brush, wire brush is for clear with cleaning brush ontology
It is more effective to sweep railway frog flangeway, is with ground in set angle, with convenient because ice and snow collecting means 2 are in use
Zigzag side carries out ice-breaking, and the scraper plate 4 being obliquely installed is more conducive to effectively abolishing the ice and snow that do not abolish, and
The cleaning being obliquely installed by trifling utmostly to clean up.
Embodiment 2
The present invention also provides a kind of application methods of device for expelling ice and snow applied to railway frog flangeway, comprising:
Ice and snow collecting means 2 are manually pushed by handle 8, ice and snow collecting means 2 are obliquely installed to be collected ice and snow, roll
The spine of axis 3, scraper plate 4 put the first edge on a knife or a pair of scissors end and 5 bottom end of cleaning brush is contacted with ice and snow, before the zigzag with ice and snow collecting means 2
Side to carry out the ice and snow in railway frog flangeway ice-breaking, and is collected by ice and snow collecting means to the ice and snow abolished；
Ice and snow collecting means 2 are moved under the drive of roller bearing 3 and idler wheel 6 along railway frog flangeway；
Equally, the ice and snow further progress of 2 lower section of ice and snow collecting means is abolished using the spine and scraper plate 4 of 3 side of roller bearing,
Rake teeth 1 is not removed the ice end that the clean and new ice-breaking of roller bearing 3 generates and abolished by scraper plate 4, and by cleaning brush 5 to the ice left
Avenge trifling cleaned.
In cleaning process, the ice and snow temporarily stored can be toppled over by ice and snow collecting means 2 at any time.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of device for expelling ice and snow applied to railway frog flangeway, which is characterized in that including ice and snow collecting means, ice and snow collecting means
Side is zigzag, and the lower surface of ice and snow collecting means is set gradually from jagged side to the other side convenient for before ice and snow collecting means
Into or retreat roller bearing, for the scraper plate of further ice-breaking and for removing trifling clear of the ice and snow left in railway frog flangeway
Brush.
2. a kind of device for expelling ice and snow applied to railway frog flangeway according to claim 1, which is characterized in that the ice and snow
Handle is arranged relative to the jagged other side in collecting means.
3. a kind of device for expelling ice and snow applied to railway frog flangeway according to claim 2, which is characterized in that the handle
Handle is arranged in end relative to the ice and snow collecting means.
4. a kind of device for expelling ice and snow applied to railway frog flangeway according to claim 1, which is characterized in that the ice and snow
Collecting means are additionally provided with idler wheel in the side of the cleaning brush in order to the movement of ice and snow collecting means, and idler wheel and the scraper plate are distinguished
Set on the two sides of the cleaning brush.
5. a kind of device for expelling ice and snow applied to railway frog flangeway according to claim 1, which is characterized in that the roller bearing
Circumferential direction is equipped with spine to the further ice-breaking of ice and snow.
6. a kind of device for expelling ice and snow applied to railway frog flangeway according to claim 1, which is characterized in that the ice and snow
The arc-shaped structure of collecting means, and ice and snow collecting means upper surface removes jagged side and is folded upward at.
7. a kind of device for expelling ice and snow applied to railway frog flangeway according to claim 1, which is characterized in that the scraper plate
One end and the ice and snow collecting means are connected, and the other end is free end, and scraper plate is set relative to the inclination of ice and snow collecting means lower surface
It sets, scraper plate bends setting close to the side of free end, and scraper plate is bent towards the jagged side of ice and snow collecting means.
8. a kind of device for expelling ice and snow applied to railway frog flangeway according to claim 1, which is characterized in that the cleaning
Brush is obliquely installed relative to ice and snow collecting means lower surface, and cleaning brush is equipped with wire brush far from one end of ice and snow collecting means.
9. a kind of device for expelling ice and snow applied to railway frog flangeway according to claim 1, which is characterized in that the roller bearing
It is movably arranged at support shaft, the both ends of support shaft are connected to the ice and snow collecting means by connecting rod.
10. a kind of user of device for expelling ice and snow applied to railway frog flangeway according to claim 1 to 9
Method characterized by comprising
Ice-breaking is carried out to the ice and snow in railway frog flangeway with the zigzag of ice and snow collecting means front side, and passes through ice and snow and collects
Part is collected the ice and snow abolished；
Ice and snow collecting means are moved under the drive of roller bearing along railway frog flangeway；
Ice and snow further progress is abolished using scraper plate, and is cleaned by the way that cleaning brush is trifling to the ice and snow left.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910345268.1A CN109972584A (en) | 2019-04-26 | 2019-04-26 | A kind of device for expelling ice and snow and application method applied to railway frog flangeway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910345268.1A CN109972584A (en) | 2019-04-26 | 2019-04-26 | A kind of device for expelling ice and snow and application method applied to railway frog flangeway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109972584A true CN109972584A (en) | 2019-07-05 |
Family
ID=67086585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910345268.1A Pending CN109972584A (en) | 2019-04-26 | 2019-04-26 | A kind of device for expelling ice and snow and application method applied to railway frog flangeway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109972584A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111519846A (en) * | 2020-05-07 | 2020-08-11 | 南宇峰 | Wall body defroster is handed in gardens |
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| CN105735189A (en) * | 2014-12-12 | 2016-07-06 | 天津云航科技有限公司 | Light deicing shovel convenient to use |
| CN208088219U (en) * | 2018-01-08 | 2018-11-13 | 青岛科技大学 | A kind of rail deicing snow removing equipment |
| CN210117686U (en) * | 2019-04-26 | 2020-02-28 | 济南轨道交通集团有限公司 | Be applied to ice and snow device that removes in frog wheel reason groove |
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2019
- 2019-04-26 CN CN201910345268.1A patent/CN109972584A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1788156A2 (en) * | 2005-11-16 | 2007-05-23 | Julius Tielbürger GmbH & Co. KG | Hand guided landscaping implement |
| CN101096843A (en) * | 2006-06-28 | 2008-01-02 | 陈文俊 | Icebreaking snow cleaning |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111519846A (en) * | 2020-05-07 | 2020-08-11 | 南宇峰 | Wall body defroster is handed in gardens |
| CN111519846B (en) * | 2020-05-07 | 2021-07-23 | 钟巍 | Wall body defroster is handed in gardens |
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