CN110904913A - Automatic snow remover of hidden rail - Google Patents
Automatic snow remover of hidden rail Download PDFInfo
- Publication number
- CN110904913A CN110904913A CN201911329922.6A CN201911329922A CN110904913A CN 110904913 A CN110904913 A CN 110904913A CN 201911329922 A CN201911329922 A CN 201911329922A CN 110904913 A CN110904913 A CN 110904913A
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- CN
- China
- Prior art keywords
- power
- injection valve
- snow removing
- shaft
- cavity
- 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
-
- 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
- E01H8/10—Removing undesirable matter from rails, flange grooves, or the like railway parts, e.g. removing ice from contact rails, removing mud from flange grooves
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Abstract
The invention discloses a hidden automatic rail snow remover, which comprises a base plate, wherein rails are symmetrically arranged on the base plate in a left-right mode, fixed blocks are symmetrically arranged at the lower end of each rail in a left-right contact mode, the fixed blocks are in threaded connection with the base plate through screws, and the rails can be fixed on the base plate.
Description
Technical Field
The invention relates to the field of rail maintenance, in particular to a hidden automatic rail snow remover.
Background
The railway track is mainly used on railway and cooperates with a point switch to enable a train to walk without steering, the railway track is usually composed of two parallel steel rails which are fixedly arranged on the sleeper, and the ballast is arranged below the sleeper.
Disclosure of Invention
The technical problem is as follows: when the accumulated snow and the ice layer cover the rail, the train can not move, and the normal operation of the railway system is further influenced, so that a large number of maintenance workers need to fall cold to the rail to clear the accumulated snow, and the railway maintenance cost is greatly increased.
The hidden rail automatic snow remover comprises a base plate, rails are symmetrically arranged on the left and right of the base plate, fixed blocks are symmetrically connected with the lower ends of the rails in a left-right contact mode, the fixed blocks are in threaded connection with the base plate through screws, so that the rails can be fixed on the base plate, a snow removing power cavity is formed in the base plate, a snow removing power device is arranged in the snow removing power cavity and can provide power for the whole device, injection valve cavities are symmetrically arranged at the left end and the right end of each rail, and injection devices are arranged in the injection valve cavities and can spray snow removing agents to the rails;
an injection valve lifting cavity is arranged in the lower wall of the injection valve cavity, an injection valve lifting device is arranged in the injection valve lifting cavity, the injection valve lifting device can control the lifting and the rotation of the injection device, power connecting cavities are symmetrically arranged in the left side wall and the right side wall of the snow removing power cavity, a power connecting device is arranged in the power connecting cavity, one end, far away from the snow removing power cavity, of the power connecting device is rotatably connected with the injection valve lifting device through a first transmission shaft, the power connecting device is in power connection with the snow removing power device through a power shaft, and then the power connecting device can transmit the power of the snow removing power device to the injection valve lifting device;
the base plate bottom has set firmly the stock solution chamber, there is the snow removing agent in the stock solution chamber, the stock solution chamber left and right ends symmetry be equipped with the low-voltage tube, the low-voltage tube is kept away from high-pressure pump one end intercommunication is equipped with the high-pressure pump, high-pressure pump lower extreme intercommunication is equipped with the high-pressure pipe, the high-pressure pipe is kept away from a high-pressure pump pot head is equipped with the heating pipe, the heating pipe can be right the snow removing agent in the high-pressure pipe heats, high-pressure pipe upper end intercommunication is equipped with central pipeline, central pipeline upper end with injection.
The snow removing power device comprises a motor fixedly arranged on the lower wall of a snow removing power cavity, the motor is in power connection with a power shaft, the left end and the right end of the power shaft extend into the power connection cavity, a first bevel gear is fixedly arranged on the power shaft, a second bevel gear is arranged on the first bevel gear in a meshed connection mode, a second transmission shaft is fixedly arranged on a second gear core, the second transmission shaft is rotatably arranged in the upper wall of the snow removing power cavity, a central belt wheel is fixedly arranged at the upper end of the second transmission shaft, a belt is connected to the central belt wheel, and the left end and the right end of the belt extend into the injection valve lifting cavity.
The power connecting device comprises a first spline sleeve arranged on the power shaft in a sleeved mode, the first spline sleeve is far away from one end of the power shaft, a first connecting shaft is fixedly arranged at one end of the first spline sleeve, a pulley is fixedly arranged on the first spline sleeve, a magnetic block is fixedly arranged at the upper end of the pulley, the magnetic block is close to one end of a snow removing power cavity, a spring is fixedly connected with the other end of the snow removing power cavity, an electromagnet is fixedly connected with one end of the snow removing power cavity, a first transmission shaft is close to one end of the first connecting shaft, the other end of the first connecting shaft extends into the power connecting cavity, a second connecting shaft is fixedly arranged at one end of the first connecting shaft, and the second connecting shaft can be connected with the first connecting.
Wherein, injection valve elevating gear including set firmly in the last third bevel gear of first transmission shaft, meshing connection is equipped with fourth bevel gear on the third bevel gear, fourth bevel gear axle center has set firmly the location axle, the location axle is rotatable to be located on injection valve lift chamber front and back both sides inner wall, the epaxial straight-teeth gear that has set firmly of location, straight-teeth gear keeps away from third bevel gear one end meshing connection is equipped with the rack, the pipeline connecting block has set firmly on the rack, the high-pressure tube extends into in the pipeline connecting block, the last swivelling joint of pipeline connecting block is equipped with the hollow shaft, the hollow shaft upper end extends into in the injection valve intracavity, central line extends into in the hollow shaft, central line with the high-pressure tube passes through the pipeline connecting block is connected, the hollow shaft outer wall cover is equipped with second spline sleeve, second spline sleeve with the hollow shaft passes through splined connection, and a small belt wheel is fixedly arranged on the outer wall of the second spline sleeve and is connected with the belt.
The upper end of the hollow shaft is fixedly provided with an injection valve fixing block, injection valves are symmetrically arranged in the injection valve fixing block in a bilateral mode, a slidable injection valve sliding block is arranged in each injection valve, the injection valve sliding block is far away from one end, close to the central pipeline, of each injection valve spring, the injection valve springs are fixedly arranged in the injection valves, injection pipelines are arranged in the injection valves, and the injection pipelines can be communicated with the central pipeline.
The invention has the beneficial effects that: the invention has simple structure, convenient maintenance and convenient use, can remotely control the start and the operation, and can clear away the accumulated snow and the accumulated ice covered on the rail through the built-in snow removing device, thereby reducing the workload of railway maintenance workers, greatly improving the snow removing efficiency, reducing the maintenance cost, ensuring the normal operation of the railway system and further greatly improving the transportation efficiency of the railway system in the snow weather.
Drawings
For ease of illustration, the invention is described in detail by the following specific examples and figures.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure "A" of FIG. 1;
FIG. 3 is a schematic view of the structure "B" of FIG. 1;
fig. 4 is a schematic view of the structure "C" of fig. 1.
Detailed Description
The invention will now be described in detail with reference to fig. 1-4, for ease of description, the orientations described below will now be defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The invention relates to a hidden automatic snow remover for a rail, which is mainly applied to the field of rail maintenance, and the invention is further explained by combining the attached drawings of the invention:
the invention relates to a hidden automatic rail snow remover, which comprises a substrate 31, rails 11 are symmetrically arranged on the substrate 31 in a left-right mode, fixed blocks 12 are symmetrically arranged at the lower ends of the rails 11 in a left-right mode in a contacting mode, the fixed blocks 12 are in threaded connection with the substrate 31 through screws 13, so that the rails 11 can be fixed on the substrate 31, a snow removing power cavity 100 is arranged in the substrate 31, a snow removing power device 101 is arranged in the snow removing power cavity 100, the snow removing power device 101 can provide power for the whole device, injection valve cavities 400 are symmetrically arranged at the left end and the right end of the rails 11, injection devices 401 are arranged in the injection valve cavities 400, the injection devices 401 can spray snow removing agents on the rails, injection valve lifting cavities 300 are arranged in the lower walls of the injection valve cavities 400, injection valve lifting devices 301 are arranged in the injection valve lifting cavities 300, and the injection valve lifting devices 301 can control the lifting and the rotation, the snow removing power cavity 100 is provided with power connecting cavities 200 symmetrically inside the left and right side walls, power connecting devices 201 are arranged inside the power connecting cavities 200, one ends of the snow removing power cavities 100 are far away from the power connecting devices 201 and are rotationally connected with the injection valve lifting devices 301 through first transmission shafts 39, the power connecting devices 201 are in power connection with the snow removing power devices 101 through power shafts 24, then the power connecting devices 201 can transmit the power of the snow removing power devices 101 to the injection valve lifting devices 301, the bottom end of the substrate 31 is fixedly provided with a liquid storage cavity 22, snow removing agents are stored in the liquid storage cavity 22, low-pressure pipes 21 are symmetrically arranged at the left and right ends of the liquid storage cavity 22, one ends of the low-pressure pipes 21 far away from the high-pressure pump 19 are communicated with a high-pressure pump 19, the lower end of the high-pressure pump 19 is communicated with a high-pressure pipe 18, one end of the high-pressure pipe, the heating pipe 16 can heat the snow removing agent in the high-pressure pipe 18, a central pipeline 57 is communicated with the upper end of the high-pressure pipe 18, and the upper end of the central pipeline 57 is connected with the spraying device 401.
According to an embodiment, the snow removal power device 101 is described in detail below, the snow removal power device 101 includes a motor 23 fixedly disposed on the lower wall of the snow removal power cavity 100, the motor 23 is in power connection with the power shaft 24, the left and right ends of the power shaft 24 extend into the power connection cavity 200, the power shaft 24 is fixedly provided with a first bevel gear 25, the first bevel gear 25 is provided with a second bevel gear 26 in a meshing connection manner, the axis of the second bevel gear 26 is fixedly provided with a second transmission shaft 27, the second transmission shaft 27 is rotatably disposed in the upper wall of the snow removal power cavity 100, the upper end of the second transmission shaft 27 is fixedly provided with a central belt wheel 28, the central belt wheel 28 is provided with a belt 29 in a connection manner, and the left and right ends of the belt 29 extend into the injection valve lifting cavity 300.
In accordance with an embodiment, the power connection device 201 is described in detail below, the power connection device 201 includes a first spline sleeve 36 sleeved on the power shaft 24, a first connecting shaft 37 is fixedly arranged at one end of the first spline sleeve 36 far away from the power shaft 24, a pulley 35 is fixedly arranged on the first spline sleeve 36, a magnet 34 is fixedly arranged at the upper end of the pulley 35, one end of the magnetic block 34 close to the snow removing power cavity 100 is elastically connected with a spring 33, an electromagnet 32 is elastically connected to one end of the spring 33 close to the snow-removing power chamber 100, the first transmission shaft 39 extends into the power connection chamber 200 near one end of the first connecting shaft 37, a second connecting shaft 38 is fixedly arranged at one end of the first transmission shaft 39 close to the first connecting shaft 37, and the second connecting shaft 38 can be meshed and connected with the first connecting shaft 37.
According to the embodiment, the injection valve lifting device 301 is described in detail below, the injection valve lifting device 301 includes a third bevel gear 41 fixedly disposed on the first transmission shaft 39, a fourth bevel gear 42 is disposed on the third bevel gear 41 in a meshing connection manner, a positioning shaft 43 is fixedly disposed at the axis of the fourth bevel gear 42, the positioning shaft 43 is rotatably disposed on the inner walls of the front and rear sides of the injection valve lifting chamber 300, a straight gear 44 is fixedly disposed on the positioning shaft 43, a rack 45 is disposed at one end of the straight gear 44 away from the third bevel gear 41 in a meshing connection manner, a pipeline connecting block 46 is fixedly disposed on the rack 45, the high-pressure pipe 18 extends into the pipeline connecting block 46, a hollow shaft 47 is rotatably connected to the pipeline connecting block 46, the upper end of the hollow shaft 47 extends into the injection valve chamber 400, and the central pipeline 57 extends into the hollow shaft 47, the central pipeline 57 is connected with the high-pressure pipe 18 through the pipeline connecting block 46, a second spline sleeve 48 is sleeved on the outer wall of the hollow shaft 47, the second spline sleeve 48 is connected with the hollow shaft 47 through a spline, a small belt wheel 49 is fixedly arranged on the outer wall of the second spline sleeve 48, and the small belt wheel 49 is connected with the belt 29.
According to an embodiment, the injection device 401 will be described in detail below, an injection valve fixing block 51 is fixedly arranged at the upper end of the hollow shaft 47, injection valves 53 are symmetrically arranged in the injection valve fixing block 51, a slidable injection valve slider 54 is arranged in the injection valve 53, an injection valve spring 55 is elastically connected to one end of the injection valve slider 54, which is far away from the central pipe 57, the injection valve spring 55 is fixedly arranged in the injection valve 53, an injection pipe 56 is arranged in the injection valve 53, and the injection pipe 56 can be communicated with the central pipe 57.
The following will describe in detail the use steps of the concealed automatic rail snow remover in conjunction with fig. 1 to 4: in the initial state, the injection valve fixing block 51 is retracted in the injection valve cavity 400, the electromagnet 32 is not electrified, the first connecting shaft 37 is separated from the second connecting shaft 38, and the motor 23 and the high-pressure pump 19 are not operated;
when snow covers the rails, the motor 23 is started remotely, the motor 23 drives the power shaft 24 to rotate, the power shaft 24 drives the second transmission shaft 27 to rotate through the first bevel gear 25 and the second bevel gear 26, the second transmission shaft 27 drives the second spline sleeve 48 to rotate through the central belt wheel 28, the high-pressure pump 19 and the small belt wheel 49, the second spline sleeve 48 drives the hollow shaft 47 to rotate, and the hollow shaft 47 drives the injection valve fixing block 51 to start to rotate;
simultaneously, the electromagnet 32 is electrified, the electromagnet 32 generates magnetism and drives the magnetic block 34 to slide towards one end close to the second connecting shaft 38 through the spring 33, so that the magnetic block 34 drives the pulley 35 and the first connecting shaft 37 to slide towards one end close to the second connecting shaft 38, the first connecting shaft 37 is meshed with the second connecting shaft 38, the power shaft 24 drives the first transmission shaft 39 to rotate through the first connecting shaft 37 and the second connecting shaft 38, the first transmission shaft 39 drives the positioning shaft 43 to rotate through the third bevel gear 41 and the fourth bevel gear 42, the positioning shaft 43 drives the straight gear 44 to rotate, the straight gear 44 drives the rack 45 to slide upwards, the rack 45 drives the injection valve fixing block 51 to slide upwards through the pipeline connecting block 46 and the hollow shaft 47, and the injection valve fixing block 51 extends out of the injection valve cavity 400;
at this moment, the high-pressure pump 19 is remotely started, the snow removing agent in the liquid storage cavity 22 is pumped into the central pipeline 57 by the high-pressure pump 19 through the low-pressure pipe 21 and the high-pressure pipe 18, the high-pressure snow removing agent pushes the injection valve sliding block 54 to slide towards one end of the central pipeline 57 in the eye, the central pipeline 57 is communicated with the injection pipeline 56, the snow removing agent is injected outwards, and the snow removing effect is achieved.
The invention has the beneficial effects that: the invention has simple structure, convenient maintenance and convenient use, can remotely control the start and the operation, and can clear away the accumulated snow and the accumulated ice covered on the rail through the built-in snow removing device, thereby reducing the workload of railway maintenance workers, greatly improving the snow removing efficiency, reducing the maintenance cost, ensuring the normal operation of the railway system and further greatly improving the transportation efficiency of the railway system in the snow weather.
The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.
Claims (5)
1. A hidden automatic rail snow remover comprises a base plate, rails are symmetrically arranged on the base plate in a bilateral mode, fixed blocks are symmetrically arranged at the lower ends of the rails in a bilateral contact mode, the fixed blocks are in threaded connection with the base plate through screws, the rails can be fixed on the base plate, a snow removing power cavity is formed in the base plate, a snow removing power device is arranged in the snow removing power cavity and can provide power for the whole device, injection valve cavities are symmetrically arranged at the left end and the right end of each rail, injection devices are arranged in the injection valve cavities, and snow removing agents can be sprayed on the rails by the injection devices;
an injection valve lifting cavity is arranged in the lower wall of the injection valve cavity, an injection valve lifting device is arranged in the injection valve lifting cavity, the injection valve lifting device can control the lifting and the rotation of the injection device, power connecting cavities are symmetrically arranged in the left side wall and the right side wall of the snow removing power cavity, a power connecting device is arranged in the power connecting cavity, one end, far away from the snow removing power cavity, of the power connecting device is rotatably connected with the injection valve lifting device through a first transmission shaft, the power connecting device is in power connection with the snow removing power device through a power shaft, and then the power connecting device can transmit the power of the snow removing power device to the injection valve lifting device;
the base plate bottom has set firmly the stock solution chamber, there is the snow removing agent in the stock solution chamber, the stock solution chamber left and right ends symmetry be equipped with the low-voltage tube, the low-voltage tube is kept away from high-pressure pump one end intercommunication is equipped with the high-pressure pump, high-pressure pump lower extreme intercommunication is equipped with the high-pressure pipe, the high-pressure pipe is kept away from a high-pressure pump pot head is equipped with the heating pipe, the heating pipe can be right the snow removing agent in the high-pressure pipe heats, high-pressure pipe upper end intercommunication is equipped with central pipeline, central pipeline upper end with injection.
2. The concealed automatic rail snow remover as claimed in claim 1, wherein: snow removing power device including set firmly in motor on the snow removing power cavity lower wall, the motor with power shaft power is connected, both ends extend into about the power shaft power is connected the intracavity, the last first bevel gear that has set firmly of power shaft, the meshing connection is equipped with second bevel gear on the first bevel gear, second bevel gear axle core has set firmly the second transmission shaft, the rotatable locating of second transmission shaft in the snow removing power cavity upper wall, second transmission shaft upper end has set firmly central band pulley, the connection is equipped with the belt on the central band pulley, both ends extend into about the belt the injection valve lift intracavity.
3. The concealed automatic rail snow remover as claimed in claim 1, wherein: the power connecting device is located including the cover the epaxial first spline sleeve of power, first spline sleeve is kept away from power axle one end has set firmly first connecting axle, the pulley has set firmly on the first spline sleeve, the pulley upper end has set firmly the magnetic path, the magnetic path is close to snow removing power chamber one end elastic connection is equipped with the spring, the spring is close to snow removing power chamber one end elastic connection is equipped with the electro-magnet, first transmission shaft is close to first connecting axle one end extends into the power is connected the intracavity, first transmission shaft is close to first connecting axle one end has set firmly the second connecting axle, the second connecting axle can with first connecting axle meshing is connected.
4. The concealed automatic rail snow remover as claimed in claim 1, wherein: the injection valve lifting device comprises a third bevel gear fixedly arranged on the first transmission shaft, a fourth bevel gear is arranged on the third bevel gear in a meshed connection mode, a positioning shaft is fixedly arranged at the axis of the fourth bevel gear, the positioning shaft is rotatably arranged on the inner walls of the front side and the rear side of the injection valve lifting cavity, a straight gear is fixedly arranged on the positioning shaft, one end of the straight gear, far away from the third bevel gear, is meshed and connected with a rack, a pipeline connecting block is fixedly arranged on the rack, the high-pressure pipe extends into the pipeline connecting block, a hollow shaft is rotatably connected onto the pipeline connecting block, the upper end of the hollow shaft extends into the injection valve cavity, a central pipeline extends into the hollow shaft, the central pipeline is connected with the high-pressure pipe through the pipeline connecting block, a second spline sleeve is sleeved on the outer wall of the hollow shaft, and the second spline sleeve is connected with the hollow shaft through splines, and a small belt wheel is fixedly arranged on the outer wall of the second spline sleeve and is connected with the belt.
5. The concealed automatic rail snow remover as claimed in claim 1, wherein: the hollow shaft upper end has set firmly the injection valve fixed block, bilateral symmetry is equipped with the injection valve in the injection valve fixed block, be equipped with slidable injection valve slider in the injection valve, the injection valve slider is kept away from central authorities 'pipeline one end elastic connection is equipped with the injection valve spring, the injection valve spring set firmly in the injection valve, be equipped with the injection pipe in the injection valve, the injection pipe can with central authorities' pipeline intercommunication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911329922.6A CN110904913A (en) | 2019-12-20 | 2019-12-20 | Automatic snow remover of hidden rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911329922.6A CN110904913A (en) | 2019-12-20 | 2019-12-20 | Automatic snow remover of hidden rail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110904913A true CN110904913A (en) | 2020-03-24 |
Family
ID=69826941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911329922.6A Pending CN110904913A (en) | 2019-12-20 | 2019-12-20 | Automatic snow remover of hidden rail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110904913A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002038401A (en) * | 2000-07-24 | 2002-02-06 | Sunstar Eng Inc | Reinforcing construction method of ballast under railway track |
| CN2707799Y (en) * | 2004-05-19 | 2005-07-06 | 刘福成 | Fixed railroad turnout wind-powered snow-removing device |
| CN102635085A (en) * | 2012-03-27 | 2012-08-15 | 中国民航大学 | Intelligent snow-melting agent sprayer for airfield runways |
| CN205443813U (en) * | 2015-12-30 | 2016-08-10 | 北京国兴力德新材料技术有限公司 | Railway switch automatic spray snow melt anti -freeze fluid device |
| CN110101344A (en) * | 2019-06-17 | 2019-08-09 | 广州慧洁日用品有限公司 | A kind of suspension type external wall cleaning device |
-
2019
- 2019-12-20 CN CN201911329922.6A patent/CN110904913A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002038401A (en) * | 2000-07-24 | 2002-02-06 | Sunstar Eng Inc | Reinforcing construction method of ballast under railway track |
| CN2707799Y (en) * | 2004-05-19 | 2005-07-06 | 刘福成 | Fixed railroad turnout wind-powered snow-removing device |
| CN102635085A (en) * | 2012-03-27 | 2012-08-15 | 中国民航大学 | Intelligent snow-melting agent sprayer for airfield runways |
| CN205443813U (en) * | 2015-12-30 | 2016-08-10 | 北京国兴力德新材料技术有限公司 | Railway switch automatic spray snow melt anti -freeze fluid device |
| CN110101344A (en) * | 2019-06-17 | 2019-08-09 | 广州慧洁日用品有限公司 | A kind of suspension type external wall cleaning device |
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Application publication date: 20200324 |
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