Valve opening and closing device of underground fire hydrant
The utility model relates to the field of fire hydrants, in particular to an underground fire hydrant valve opening and closing device which comprises a hollow valve rod sleeve body, a valve rod sleeve matched with a fire hydrant valve rod is arranged on the lower portion of the valve rod sleeve bod...
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| creator | LUO XIN MU YUQUAN NIE DONGYA LI WEI SHU DEYOU |
| description | The utility model relates to the field of fire hydrants, in particular to an underground fire hydrant valve opening and closing device which comprises a hollow valve rod sleeve body, a valve rod sleeve matched with a fire hydrant valve rod is arranged on the lower portion of the valve rod sleeve body, and an extension rod penetrates through the upper portion of the valve rod sleeve body. A partition plate for separating the valve rod sleeve and the extension rod is arranged in the valve rod sleeve body, and a telescopic spring is arranged between the bottom of the extension rod and the partition plate; a connecting pipe is fixed to the upper end of the extension rod, and handles are fixed to the two ends of the connecting pipe. The valve rod sleeve body is provided with an anti-retreating nail for preventing the extension rod from being separated from the valve rod sleeve body; an adjusting screw is arranged on the valve rod sleeve body, and a plurality of adjusting blind holes matched with the adjusting scre |
| format | Patent |
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A partition plate for separating the valve rod sleeve and the extension rod is arranged in the valve rod sleeve body, and a telescopic spring is arranged between the bottom of the extension rod and the partition plate; a connecting pipe is fixed to the upper end of the extension rod, and handles are fixed to the two ends of the connecting pipe. The valve rod sleeve body is provided with an anti-retreating nail for preventing the extension rod from being separated from the valve rod sleeve body; an adjusting screw is arranged on the valve rod sleeve body, and a plurality of adjusting blind holes matched with the adjusting scre</description><language>chi ; eng</language><subject>ACTUATING-FLOATS ; BLASTING ; COCKS ; DEVICES FOR VENTING OR AERATING ; ENGINEERING ELEMENTS AND UNITS ; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS ; HEATING ; LIGHTING ; MECHANICAL ENGINEERING ; TAPS ; THERMAL INSULATION IN GENERAL ; VALVES ; WEAPONS</subject><creationdate>2022</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=20220705&DB=EPODOC&CC=CN&NR=216896040U$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220705&DB=EPODOC&CC=CN&NR=216896040U$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LUO XIN</creatorcontrib><creatorcontrib>MU YUQUAN</creatorcontrib><creatorcontrib>NIE DONGYA</creatorcontrib><creatorcontrib>LI WEI</creatorcontrib><creatorcontrib>SHU DEYOU</creatorcontrib><title>Valve opening and closing device of underground fire hydrant</title><description>The utility model relates to the field of fire hydrants, in particular to an underground fire hydrant valve opening and closing device which comprises a hollow valve rod sleeve body, a valve rod sleeve matched with a fire hydrant valve rod is arranged on the lower portion of the valve rod sleeve body, and an extension rod penetrates through the upper portion of the valve rod sleeve body. A partition plate for separating the valve rod sleeve and the extension rod is arranged in the valve rod sleeve body, and a telescopic spring is arranged between the bottom of the extension rod and the partition plate; a connecting pipe is fixed to the upper end of the extension rod, and handles are fixed to the two ends of the connecting pipe. 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A partition plate for separating the valve rod sleeve and the extension rod is arranged in the valve rod sleeve body, and a telescopic spring is arranged between the bottom of the extension rod and the partition plate; a connecting pipe is fixed to the upper end of the extension rod, and handles are fixed to the two ends of the connecting pipe. The valve rod sleeve body is provided with an anti-retreating nail for preventing the extension rod from being separated from the valve rod sleeve body; an adjusting screw is arranged on the valve rod sleeve body, and a plurality of adjusting blind holes matched with the adjusting scre</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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| subjects | ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS |
| title | Valve opening and closing device of underground fire hydrant |
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