CN202125496U - Energy saving self-attack conical head expansion bolt - Google Patents

Energy saving self-attack conical head expansion bolt Download PDF

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Publication number
CN202125496U
CN202125496U CN2011201815321U CN201120181532U CN202125496U CN 202125496 U CN202125496 U CN 202125496U CN 2011201815321 U CN2011201815321 U CN 2011201815321U CN 201120181532 U CN201120181532 U CN 201120181532U CN 202125496 U CN202125496 U CN 202125496U
Authority
CN
China
Prior art keywords
expansion
attack
self
sleeve
conical head
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2011201815321U
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Chinese (zh)
Inventor
陈一恒
Original Assignee
陈一恒
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 陈一恒 filed Critical 陈一恒
Priority to CN2011201815321U priority Critical patent/CN202125496U/en
Application granted granted Critical
Publication of CN202125496U publication Critical patent/CN202125496U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to an energy saving self-attack conical head expansion bolt, which is designed to be provided with a self-attack screw and a sleeve chord arranged on the tail of an expansion sleeve. Four cone-shaped expansion sleeves with openings and a self-attack conical head screw are arranged at the head of the sleeve. When the expansion bolt is needed to be taken out, the self-attack conical head screw can be slightly retreated, an opening of the tail of each expansion sleeve and a hole wall are in a flat straight line, then the self-attack conical head screw and the expansion sleeve can be pulled out together, the sleeve chord is used for preventing the expansion sleeve from being inserted in a hole too deep and contributing to pulling out of the expansion sleeve. The energy saving self-attack conical head expansion bolt not only effectively solves the problem that the expansion bolt in the hole cannot be pulled out so as to cause waste, the expansion bolt can be continued to use, and nuts are omitted in design, thereby reducing cost of products, being capable of widely being used in the field of the expansion bolt and a worm.

Description

Energy-saving self-tapping type conehead EXPANSION ANCHOR BOLTS
One, technical field: the utility model relates to EXPANSION ANCHOR BOLTS, is a kind of energy-saving self-tapping type conehead EXPANSION ANCHOR BOLTS.
Two, background technique: existing EXPANSION ANCHOR BOLTS is by expansion sleeve, awl tail screw rod and nut three part groups; Said expansion sleeve afterbody has opening; Be to bore the active force that the tail screw rod draws outward during use, the expansion sleeve afterbody is opened, needing the fixture peace solid on body of wall or other object through the screw-in of nut; In the time will taking off fixture, inflatable bolt just can't take out in hole and cause the wasting of resources.
Three, summary of the invention: the utility model will overcome EXPANSION ANCHOR BOLTS exactly and can't take out and cause wasting of resources problem, and a kind of energy-saving self-tapping type conehead EXPANSION ANCHOR BOLTS is provided.
The specific embodiments of the utility model: be designed with the self-tapping type screw rod, the expansion sleeve afterbody has the cover philharmonic; The sleeve pipe head has the tapered expansion sleeve pipe and the self-tapping type conehead screw rod of four openings; When needs take out EXPANSION ANCHOR BOLTS; Can self-tapping type conehead screw rod be withdrawed from a bit; Make the opening and the hole wall of expansion sleeve afterbody be flat line, just can self-tapping type conehead screw rod and expansion sleeve be pulled out in the lump, the effect of said cover philharmonic is to prevent to cross deeply in the expansion sleeve insertion hole to design with helping expansion sleeve to take out.
Because the utility model has not only solved EXPANSION ANCHOR BOLTS effectively and in hole, can't take out the waste problem that causes, and can continue to use, in design, also save these component of nut, and reduced product cost, can be widely used in EXPANSION ANCHOR BOLTS, spiral shell hook field.
Four, description of drawings: accompanying drawing is the structural representation of the utility model.Among the figure: the 1-expansion sleeve, 2-overlaps philharmonic, 3-self-tapping screw
Five, embodiment: with reference to accompanying drawing, the material hardness of making expansion sleeve 1 must be softer than the material of self-tapping screw 3, promptly constitutes the utility model.

Claims (1)

1. energy-saving self-tapping type conehead EXPANSION ANCHOR BOLTS, it is characterized in that: be designed with the self-tapping type screw rod, the expansion sleeve afterbody has the cover philharmonic.
CN2011201815321U 2011-05-29 2011-05-29 Energy saving self-attack conical head expansion bolt Expired - Fee Related CN202125496U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201815321U CN202125496U (en) 2011-05-29 2011-05-29 Energy saving self-attack conical head expansion bolt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201815321U CN202125496U (en) 2011-05-29 2011-05-29 Energy saving self-attack conical head expansion bolt

Publications (1)

Publication Number Publication Date
CN202125496U true CN202125496U (en) 2012-01-25

Family

ID=45488564

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011201815321U Expired - Fee Related CN202125496U (en) 2011-05-29 2011-05-29 Energy saving self-attack conical head expansion bolt

Country Status (1)

Country Link
CN (1) CN202125496U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106763048A (en) * 2016-12-25 2017-05-31 黄传勇 A kind of expansion bolt

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106763048A (en) * 2016-12-25 2017-05-31 黄传勇 A kind of expansion bolt

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120125

Termination date: 20120529