Quick-repair type washing-free double-core stop valve convenient to replace

The utility model relates to the technical field of valves, in particular to a quick-repair type washing-free double-core stop valve convenient to replace. The check valve comprises a valve body, a valve seat, a first-stage valve element, a limiting disc, a second-stage valve element, a valve seat s...

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1. Verfasser:	MIAO YUNBO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	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
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creator	MIAO YUNBO
description	The utility model relates to the technical field of valves, in particular to a quick-repair type washing-free double-core stop valve convenient to replace. The check valve comprises a valve body, a valve seat, a first-stage valve element, a limiting disc, a second-stage valve element, a valve seat sleeve, a valve deck, a packing gland, a valve rod and a valve driving mechanism. The stop valve is opened and closed; an assembly formed by the first-stage valve element, the limiting disc and the second-stage valve element moves vertically. A free stroke is arranged in the first-stage valve core; the position of the first-stage valve core can be automatically corrected under the action of fluid pressure; after the second-stage valve core is completely closed in place, the second-stage valve core does not apply downward thrust to the first-stage valve core; according to the stop valve, the sealing performance of the other valve element is completely prevented from being affected by one valveelement, the distance be
format	Patent
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The check valve comprises a valve body, a valve seat, a first-stage valve element, a limiting disc, a second-stage valve element, a valve seat sleeve, a valve deck, a packing gland, a valve rod and a valve driving mechanism. The stop valve is opened and closed; an assembly formed by the first-stage valve element, the limiting disc and the second-stage valve element moves vertically. A free stroke is arranged in the first-stage valve core; the position of the first-stage valve core can be automatically corrected under the action of fluid pressure; after the second-stage valve core is completely closed in place, the second-stage valve core does not apply downward thrust to the first-stage valve core; according to the stop valve, the sealing performance of the other valve element is completely prevented from being affected by one valveelement, the distance be</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>2020</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=20201023&DB=EPODOC&CC=CN&NR=211738048U$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76418</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20201023&DB=EPODOC&CC=CN&NR=211738048U$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>MIAO YUNBO</creatorcontrib><title>Quick-repair type washing-free double-core stop valve convenient to replace</title><description>The utility model relates to the technical field of valves, in particular to a quick-repair type washing-free double-core stop valve convenient to replace. The check valve comprises a valve body, a valve seat, a first-stage valve element, a limiting disc, a second-stage valve element, a valve seat sleeve, a valve deck, a packing gland, a valve rod and a valve driving mechanism. The stop valve is opened and closed; an assembly formed by the first-stage valve element, the limiting disc and the second-stage valve element moves vertically. A free stroke is arranged in the first-stage valve core; the position of the first-stage valve core can be automatically corrected under the action of fluid pressure; after the second-stage valve core is completely closed in place, the second-stage valve core does not apply downward thrust to the first-stage valve core; according to the stop valve, the sealing performance of the other valve element is completely prevented from being affected by one valveelement, the distance be</description><subject>ACTUATING-FLOATS</subject><subject>BLASTING</subject><subject>COCKS</subject><subject>DEVICES FOR VENTING OR AERATING</subject><subject>ENGINEERING ELEMENTS AND UNITS</subject><subject>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</subject><subject>HEATING</subject><subject>LIGHTING</subject><subject>MECHANICAL ENGINEERING</subject><subject>TAPS</subject><subject>THERMAL INSULATION IN GENERAL</subject><subject>VALVES</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2020</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNy7EKwjAURuEsDlJ9h4t7wFrB7sUiCIJg5xLj3xoMuSFJI769HXwAp7N8ZynO18nolwzwygRKHw96q_g0bpRDAOjB091Cag6gmNhTVjaDNLsMZ-ASJab5tkpjJRaDshHrXwuxaY-35iThuUf0M3FIfXPZleWhqrf7uuuqv9AX3xM2Zg</recordid><startdate>20201023</startdate><enddate>20201023</enddate><creator>MIAO YUNBO</creator><scope>EVB</scope></search><sort><creationdate>20201023</creationdate><title>Quick-repair type washing-free double-core stop valve convenient to replace</title><author>MIAO YUNBO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN211738048UU3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2020</creationdate><topic>ACTUATING-FLOATS</topic><topic>BLASTING</topic><topic>COCKS</topic><topic>DEVICES FOR VENTING OR AERATING</topic><topic>ENGINEERING ELEMENTS AND UNITS</topic><topic>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</topic><topic>HEATING</topic><topic>LIGHTING</topic><topic>MECHANICAL ENGINEERING</topic><topic>TAPS</topic><topic>THERMAL INSULATION IN GENERAL</topic><topic>VALVES</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>MIAO YUNBO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>MIAO YUNBO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Quick-repair type washing-free double-core stop valve convenient to replace</title><date>2020-10-23</date><risdate>2020</risdate><abstract>The utility model relates to the technical field of valves, in particular to a quick-repair type washing-free double-core stop valve convenient to replace. The check valve comprises a valve body, a valve seat, a first-stage valve element, a limiting disc, a second-stage valve element, a valve seat sleeve, a valve deck, a packing gland, a valve rod and a valve driving mechanism. The stop valve is opened and closed; an assembly formed by the first-stage valve element, the limiting disc and the second-stage valve element moves vertically. A free stroke is arranged in the first-stage valve core; the position of the first-stage valve core can be automatically corrected under the action of fluid pressure; after the second-stage valve core is completely closed in place, the second-stage valve core does not apply downward thrust to the first-stage valve core; according to the stop valve, the sealing performance of the other valve element is completely prevented from being affected by one valveelement, the distance be</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	Quick-repair type washing-free double-core stop valve convenient to replace
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