CN103939440A - Stepped conical nut fastener - Google Patents

Stepped conical nut fastener Download PDF

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Publication number
CN103939440A
CN103939440A CN201410174859.4A CN201410174859A CN103939440A CN 103939440 A CN103939440 A CN 103939440A CN 201410174859 A CN201410174859 A CN 201410174859A CN 103939440 A CN103939440 A CN 103939440A
Authority
CN
China
Prior art keywords
expansion sleeve
conical nut
bolt
nut
stepped conical
Prior art date
Application number
CN201410174859.4A
Other languages
Chinese (zh)
Inventor
欧卉
Original Assignee
欧卉
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 欧卉 filed Critical 欧卉
Priority to CN201410174859.4A priority Critical patent/CN103939440A/en
Publication of CN103939440A publication Critical patent/CN103939440A/en

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Abstract

The invention discloses a stepped conical nut fastener which comprises a stepped conical nut (1), an expansion sleeve (2) and a bolt (3). The stepped conical nut (1) is provided with internal threads. One end of the stepped conical nut (1) is provided with steps which play a role in strengthening adhesive force. The other end of the stepped conical nut (1) is of a conical shape. The stepped conical nut (1) is in butt joint with an inner hole of the expansion sleeve (2). The bolt (3) penetrates through the inner hole of the expansion sleeve (2) to be in butt joint with the internal threads at the conical end of the stepped conical nut (1). By rotating the bolt (3), the stepped conical nut (1) moves horizontally towards the wall of the expansion sleeve, a bevel of the stepped conical nut (1) enables the expansion sleeve to expand in an interference mode and be tensioned on the circumferential wall of the inner hole of an attachment, and then a connecting object is fastened. The stepped conical nut fastener has the advantages of being good in universality, high in adhesive force, attractive, capable of saving materials and facilitating fastening and installation, and safe in use.

Description

Step cone nut fastening piece

Technical field

The present invention relates to a kind of fastening piece that connects, particularly one is strengthened stretching resistance, has more the step cone nut fastening piece of versatility.

Background technique

The common connection fastening piece of setscrew comprises nut, conehead, bolt, its nut is placed in the outside of attachment, bolt conehead is easy to be drawn out thread one end of attachment and bolt and can more draws and run off, and the utmost point is not attractive in appearance, and one end that bolt is drawn out is actually a kind of waste of material.Existing setscrew connects fastening piece in use, must first bolt and expansion sleeve be first placed in to attachment endoporus, is unfavorable for the installation of fastened thing.Especially, after existing setscrew uses, its bolt and expansion sleeve can only be stayed on attachment, not only waste but also not attractive in appearance.

Summary of the invention

The object of this invention is to provide a kind of versatility good, strong adhesion, the material of economizing on again attractive in appearance, is convenient to the step cone nut fastening piece of fastening installation.

Step cone nut fastening piece of the present invention, comprises expansion sleeve and bolt, characterized by further comprising step tapered cup nut, and described step tapered cup nut is provided with internal thread, and strengthening adhesion, with step, is played in its one end, and the other end is tapered; Step tapered cup nut butts up against expansion sleeve endoporus, bolt docks through the endoporus of expansion sleeve and the tapered end internal thread of step tapered cup nut, by bolton in the hole of attachment, the step of its step tapered cup nut increases and the pressure of minimizing several times the compression area of expansion sleeve, thereby has strengthened adhesion; When installation, step tapered cup nut is in attachment hole, and the rotation of bolt puts forth effort one end and be placed in outside attachment, moves to expansion sleeve endoporus by rotarily driving step tapered cup nut, the interference of step tapered cup nut is pressed on attachment expansion sleeve, reaches fastening object.

Step cone nut fastening piece of the present invention, uses metal or engineering plastics (ABS) to make.

While using step cone nut fastening piece, proportionally because the step of step tapered cup nut increases the lifting surface area geometrical progression of expansion sleeve reduce stressed pressure, thereby greatly improve the fastening force of fastening piece, also greatly improved safety coefficient, avoid too depending on increase material diameter for improving fastening force, and then saved and used material.Because step tapered cup nut is in the hole of attachment, bolt one end is outside the hole of attachment, and in the time that fastener needs multiple clamping bolt, the present invention can satisfy individual to connecting, and when having avoided common EXPANSION ANCHOR BOLTS to need multiple bolts with hole, docks, more convenient, quick.Bolt of the present invention can use in the time not using in rear continuation for convenience detach, avoid common EXPANSION ANCHOR BOLTS can only throw aside in attachment, not only waste but also not attractive in appearance, and bring the idle work of secondary (removing bolt), it is step tapered cup nut that bolt of the present invention only rotates mobile, therefore, there will not be common EXPANSION ANCHOR BOLTS to strain and more protrude the one end with thread, occurring phenomenon of wasting again material not attractive in appearance.There is versatility good, strong adhesion, the material of economizing on again attractive in appearance, is convenient to fastening installation and uses safe advantage.

Brief description of the drawings

The structural representation that accompanying drawing 1 is step cone nut fastening piece of the present invention; Fig. 2 is step tapered cup nut schematic diagram.

In figure, 1 is step tapered cup nut, the 2nd, and expansion sleeve, the 3rd, bolt.

Embodiment

Below in conjunction with drawings and Examples, step cone nut fastening piece of the present invention is described further.

Referring to accompanying drawing, the step cone nut fastening piece of the present embodiment is to use metal to make, and step cone nut fastening piece comprises step tapered cup nut 1, expansion sleeve 2 and bolt 3, described step tapered cup nut 1 is provided with internal thread, strengthening adhesion, with step, is played in its one end, and the other end is tapered; Step tapered cup nut 1 butts up against the endoporus of expansion sleeve 2, bolt 3 docks through the endoporus of expansion sleeve 2 and the tapered end internal thread of step tapered cup nut 1, by swivel bolt 1, step tapered cup nut 1 is to the translation of expansion sleeve inwall, the tapered slope of step tapered cup nut 1 expands expansion sleeve interference, the endoporus perisporium that is tensioned to attachment, reaches and is fastenedly connected thing.

Claims (1)

1. a step cone nut fastening piece, comprises expansion sleeve (2) and bolt (3), characterized by further comprising step tapered cup nut (1), described step tapered cup nut (1) is provided with internal thread, there is step one end, plays strengthening adhesion, and the other end is tapered; Step tapered cup nut (1) butts up against the endoporus of expansion sleeve (2), and bolt (3) docks with the tapered end internal thread of step tapered cup nut (1) through the endoporus of expansion sleeve (2), and rotating bolt (3) makes in its hole that is anchored on attachment.
CN201410174859.4A 2014-04-29 2014-04-29 Stepped conical nut fastener CN103939440A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410174859.4A CN103939440A (en) 2014-04-29 2014-04-29 Stepped conical nut fastener

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410174859.4A CN103939440A (en) 2014-04-29 2014-04-29 Stepped conical nut fastener

Publications (1)

Publication Number Publication Date
CN103939440A true CN103939440A (en) 2014-07-23

Family

ID=51187264

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410174859.4A CN103939440A (en) 2014-04-29 2014-04-29 Stepped conical nut fastener

Country Status (1)

Country Link
CN (1) CN103939440A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5314277A (en) * 1992-03-13 1994-05-24 Fischerwerke Artur Fischer Gmbh & Co. Kg Expansible plug having an expander body
CN2236041Y (en) * 1995-12-22 1996-09-25 费先强 Expansion screw connector
CN2443186Y (en) * 2000-09-05 2001-08-15 栾福裕 Expansion fastening hanger rod
CN2934702Y (en) * 2006-05-17 2007-08-15 周金元 Screw-in type expanding screw
CN202690635U (en) * 2012-08-02 2013-01-23 薄其玉 Novel expansion bolt
US20130202364A1 (en) * 2012-02-02 2013-08-08 N-Pat Co., Ltd. Anchor and method of installing anchor
CN203374598U (en) * 2013-07-11 2014-01-01 张卫 Detachable expansion bolt

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5314277A (en) * 1992-03-13 1994-05-24 Fischerwerke Artur Fischer Gmbh & Co. Kg Expansible plug having an expander body
CN2236041Y (en) * 1995-12-22 1996-09-25 费先强 Expansion screw connector
CN2443186Y (en) * 2000-09-05 2001-08-15 栾福裕 Expansion fastening hanger rod
CN2934702Y (en) * 2006-05-17 2007-08-15 周金元 Screw-in type expanding screw
US20130202364A1 (en) * 2012-02-02 2013-08-08 N-Pat Co., Ltd. Anchor and method of installing anchor
CN202690635U (en) * 2012-08-02 2013-01-23 薄其玉 Novel expansion bolt
CN203374598U (en) * 2013-07-11 2014-01-01 张卫 Detachable expansion bolt

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Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20140723

C02 Deemed withdrawal of patent application after publication (patent law 2001)