Anti-freezing and anti-thawing device for road and railway roadbeds
The utility model provides a road and railway roadbed freeze thawing prevention device which comprises a drain pipe, the drain pipe is buried in a road or railway roadbed, drain holes are evenly formed in the surface of the drain pipe, a first air bag is arranged in the drain pipe, and the side end...
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| creator | ZHAO YUBI WU YU |
| description | The utility model provides a road and railway roadbed freeze thawing prevention device which comprises a drain pipe, the drain pipe is buried in a road or railway roadbed, drain holes are evenly formed in the surface of the drain pipe, a first air bag is arranged in the drain pipe, and the side end of the first air bag is fixedly connected with a nitrogen storage steel cylinder through a first connecting pipe. A first one-way valve is arranged on the first connecting pipe, a second air bag is fixedly connected to the other end of the nitrogen storage steel cylinder through a second connecting pipe, a first electromagnetic valve and a second one-way valve are arranged on the second connecting pipe, the second air bag is communicated with the first air bag through an air bag pressure pipe, and a second electromagnetic valve and a third one-way valve are arranged on the air bag pressure pipe. The pressure in the drain pipe is changed through inflation and deflation of the air bag, water in the roadbed enters the |
| format | Patent |
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A first one-way valve is arranged on the first connecting pipe, a second air bag is fixedly connected to the other end of the nitrogen storage steel cylinder through a second connecting pipe, a first electromagnetic valve and a second one-way valve are arranged on the second connecting pipe, the second air bag is communicated with the first air bag through an air bag pressure pipe, and a second electromagnetic valve and a third one-way valve are arranged on the air bag pressure pipe. The pressure in the drain pipe is changed through inflation and deflation of the air bag, water in the roadbed enters the</description><language>chi ; eng</language><subject>ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTIONOF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, ORTHE LIKE ; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES ; CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, ORTHE LIKE ; FIXED CONSTRUCTIONS ; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR</subject><creationdate>2023</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20231027&DB=EPODOC&CC=CN&NR=219908420U$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20231027&DB=EPODOC&CC=CN&NR=219908420U$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ZHAO YUBI</creatorcontrib><creatorcontrib>WU YU</creatorcontrib><title>Anti-freezing and anti-thawing device for road and railway roadbeds</title><description>The utility model provides a road and railway roadbed freeze thawing prevention device which comprises a drain pipe, the drain pipe is buried in a road or railway roadbed, drain holes are evenly formed in the surface of the drain pipe, a first air bag is arranged in the drain pipe, and the side end of the first air bag is fixedly connected with a nitrogen storage steel cylinder through a first connecting pipe. A first one-way valve is arranged on the first connecting pipe, a second air bag is fixedly connected to the other end of the nitrogen storage steel cylinder through a second connecting pipe, a first electromagnetic valve and a second one-way valve are arranged on the second connecting pipe, the second air bag is communicated with the first air bag through an air bag pressure pipe, and a second electromagnetic valve and a third one-way valve are arranged on the air bag pressure pipe. The pressure in the drain pipe is changed through inflation and deflation of the air bag, water in the roadbed enters the</description><subject>ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTIONOF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, ORTHE LIKE</subject><subject>CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES</subject><subject>CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, ORTHE LIKE</subject><subject>FIXED CONSTRUCTIONS</subject><subject>MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2023</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZHB2zCvJ1E0rSk2tysxLV0jMSwFioEhJRmI5SCAltSwzOVUhLb9IoSg_MQWsoCgxM6c8sRIskJSaUszDwJqWmFOcyguluRmU3FxDnD10Uwvy41OLCxKTU_NSS-Kd_YwMLS0NLEyMDEJDjYlSBAC0HTLi</recordid><startdate>20231027</startdate><enddate>20231027</enddate><creator>ZHAO YUBI</creator><creator>WU YU</creator><scope>EVB</scope></search><sort><creationdate>20231027</creationdate><title>Anti-freezing and anti-thawing device for road and railway roadbeds</title><author>ZHAO YUBI ; WU YU</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN219908420UU3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2023</creationdate><topic>ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTIONOF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, ORTHE LIKE</topic><topic>CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES</topic><topic>CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, ORTHE LIKE</topic><topic>FIXED CONSTRUCTIONS</topic><topic>MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR</topic><toplevel>online_resources</toplevel><creatorcontrib>ZHAO YUBI</creatorcontrib><creatorcontrib>WU YU</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>ZHAO YUBI</au><au>WU YU</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Anti-freezing and anti-thawing device for road and railway roadbeds</title><date>2023-10-27</date><risdate>2023</risdate><abstract>The utility model provides a road and railway roadbed freeze thawing prevention device which comprises a drain pipe, the drain pipe is buried in a road or railway roadbed, drain holes are evenly formed in the surface of the drain pipe, a first air bag is arranged in the drain pipe, and the side end of the first air bag is fixedly connected with a nitrogen storage steel cylinder through a first connecting pipe. A first one-way valve is arranged on the first connecting pipe, a second air bag is fixedly connected to the other end of the nitrogen storage steel cylinder through a second connecting pipe, a first electromagnetic valve and a second one-way valve are arranged on the second connecting pipe, the second air bag is communicated with the first air bag through an air bag pressure pipe, and a second electromagnetic valve and a third one-way valve are arranged on the air bag pressure pipe. The pressure in the drain pipe is changed through inflation and deflation of the air bag, water in the roadbed enters the</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
| recordid | cdi_epo_espacenet_CN219908420UU |
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| subjects | ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTIONOF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, ORTHE LIKE CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, ORTHE LIKE FIXED CONSTRUCTIONS MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR |
| title | Anti-freezing and anti-thawing device for road and railway roadbeds |
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