Hydraulic tong protection device
The utility model discloses a hydraulic tong protection device and belongs to the technical field of petroleum drilling, oil extraction and workover rigs. A Z-shaped stroke valve fixing rack is connected with an inclined plate; two fixing rack fixing holes are distributed in the Z-shaped stroke valv...
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| creator | LI HUI TU JINWU TANG XINGTI YANG XIONG LIU JIANA BING TONGLIN HAN YANTAO ZUO XIUHUA LI YOUJUN |
| description | The utility model discloses a hydraulic tong protection device and belongs to the technical field of petroleum drilling, oil extraction and workover rigs. A Z-shaped stroke valve fixing rack is connected with an inclined plate; two fixing rack fixing holes are distributed in the Z-shaped stroke valve fixing rack; two stroke valve fixing holes are distributed in the inclined plate; a lengthening rod is connected with a stop iron; two fixed bolts are connected to the lengthening rod; a safety gate is connected to the stop iron; a jackscrew and two vertical adjusting bolts are connected to the stop iron; a two-position four-way hydraulic control valve is of a valve plate type; the front of the two-position four-way hydraulic control valve is correspondingly communicated with a valve opening of a valve plate; the back of the two-position four-way hydraulic control valve is correspondingly communicated with a valve opening of a three-position four-way hand-operated direction valve; the two faces of the two-positio |
| format | Patent |
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A Z-shaped stroke valve fixing rack is connected with an inclined plate; two fixing rack fixing holes are distributed in the Z-shaped stroke valve fixing rack; two stroke valve fixing holes are distributed in the inclined plate; a lengthening rod is connected with a stop iron; two fixed bolts are connected to the lengthening rod; a safety gate is connected to the stop iron; a jackscrew and two vertical adjusting bolts are connected to the stop iron; a two-position four-way hydraulic control valve is of a valve plate type; the front of the two-position four-way hydraulic control valve is correspondingly communicated with a valve opening of a valve plate; the back of the two-position four-way hydraulic control valve is correspondingly communicated with a valve opening of a three-position four-way hand-operated direction valve; the two faces of the two-positio</description><language>chi ; eng</language><subject>EARTH DRILLING ; EARTH DRILLING, e.g. DEEP DRILLING ; FIXED CONSTRUCTIONS ; MINING ; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS</subject><creationdate>2013</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=20131204&DB=EPODOC&CC=CN&NR=203321379U$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20131204&DB=EPODOC&CC=CN&NR=203321379U$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LI HUI</creatorcontrib><creatorcontrib>TU JINWU</creatorcontrib><creatorcontrib>TANG XINGTI</creatorcontrib><creatorcontrib>YANG XIONG</creatorcontrib><creatorcontrib>LIU JIANA</creatorcontrib><creatorcontrib>BING TONGLIN</creatorcontrib><creatorcontrib>HAN YANTAO</creatorcontrib><creatorcontrib>ZUO XIUHUA</creatorcontrib><creatorcontrib>LI YOUJUN</creatorcontrib><title>Hydraulic tong protection device</title><description>The utility model discloses a hydraulic tong protection device and belongs to the technical field of petroleum drilling, oil extraction and workover rigs. 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A Z-shaped stroke valve fixing rack is connected with an inclined plate; two fixing rack fixing holes are distributed in the Z-shaped stroke valve fixing rack; two stroke valve fixing holes are distributed in the inclined plate; a lengthening rod is connected with a stop iron; two fixed bolts are connected to the lengthening rod; a safety gate is connected to the stop iron; a jackscrew and two vertical adjusting bolts are connected to the stop iron; a two-position four-way hydraulic control valve is of a valve plate type; the front of the two-position four-way hydraulic control valve is correspondingly communicated with a valve opening of a valve plate; the back of the two-position four-way hydraulic control valve is correspondingly communicated with a valve opening of a three-position four-way hand-operated direction valve; the two faces of the two-positio</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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| subjects | EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS |
| title | Hydraulic tong protection device |
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