Hidden screw device

The utility model provides a hidden screw device. The hidden screw device comprises a male screw and a female screw. A hollowed-out main protruding column is arranged on the upper end face of the male screw. A plurality of vertical grooves are formed in the upper end face of the main protruding colu...

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1. Verfasser: ZHANG ZHENCHONG
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creator ZHANG ZHENCHONG
description The utility model provides a hidden screw device. The hidden screw device comprises a male screw and a female screw. A hollowed-out main protruding column is arranged on the upper end face of the male screw. A plurality of vertical grooves are formed in the upper end face of the main protruding column. The bottom of the main protruding column is in an arc shape. A groove is formed in the axis position of the female screw. An auxiliary protruding column matched with the main protruding column is arranged at the center of the groove. No concave hole can be left in the surface when furniture is assembled through the hidden screw device, the paint make-up procedure is not needed, or assembly can be conducted after paint brushing is completed; the male screw and the female screw are installed in corresponding positions of composite members after the hidden screw device is installed, and the two composite members are oppositely placed after installation and can be firmly connected by slightly knocking the composite members.
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A plurality of vertical grooves are formed in the upper end face of the main protruding column. The bottom of the main protruding column is in an arc shape. A groove is formed in the axis position of the female screw. An auxiliary protruding column matched with the main protruding column is arranged at the center of the groove. No concave hole can be left in the surface when furniture is assembled through the hidden screw device, the paint make-up procedure is not needed, or assembly can be conducted after paint brushing is completed; the male screw and the female screw are installed in corresponding positions of composite members after the hidden screw device is installed, and the two composite members are oppositely placed after installation and can be firmly connected by slightly knocking the composite members.</description><language>eng</language><subject>BLASTING ; DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING ; ENGINEERING ELEMENTS AND UNITS ; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS ; HEATING ; LIGHTING ; MECHANICAL ENGINEERING ; THERMAL INSULATION IN GENERAL ; WEAPONS</subject><creationdate>2015</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&amp;date=20150311&amp;DB=EPODOC&amp;CC=CN&amp;NR=204200800U$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76418</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20150311&amp;DB=EPODOC&amp;CC=CN&amp;NR=204200800U$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ZHANG ZHENCHONG</creatorcontrib><title>Hidden screw device</title><description>The utility model provides a hidden screw device. 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subjects BLASTING
DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
THERMAL INSULATION IN GENERAL
WEAPONS
title Hidden screw device
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