CN2133703Y - Expansion nail with punch core - Google Patents
Expansion nail with punch core Download PDFInfo
- Publication number
- CN2133703Y CN2133703Y CN 92231150 CN92231150U CN2133703Y CN 2133703 Y CN2133703 Y CN 2133703Y CN 92231150 CN92231150 CN 92231150 CN 92231150 U CN92231150 U CN 92231150U CN 2133703 Y CN2133703 Y CN 2133703Y
- Authority
- CN
- China
- Prior art keywords
- expansion nail
- core
- punch core
- nail
- expansion
- 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
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Abstract
Disclosed is an expansion nail with punch core, belonging to the technical field of expansion nails, which comprises an expansion nail and a punch core. One end of the lug boss of the expansion nail 1 is formed into an inner hole; the other end of the lug boss of the expansion nail 1 is provided with a symmetrical opening which is divided into four sections; the outer diameter of the expansion nail is provided with four oblique wedge grooves; one end of the punch core 2, which is provided with conicity is inserted into the inner hole of the expansion nail 1; the cone angle alpha of the punch core is 30 DEG. When used, one end of the punch core, which is provided with conicity is inserted into the inner hole of the expansion nail 1; the symmetrical opening is expanded by hammer blows and the expansion nail with punch core is fixed. The utility model can save material saving, simple structure, convenient operation, improvement of installing efficiency and good fastening performance.
Description
The utility model belongs to the expandable nail technical field.
All be to adopt EXPANSION ANCHOR BOLTS, nylon to expand to follow closely by dress steel casement door, steel sash and securing bracket at present.Outside EXPANSION ANCHOR BOLTS, add expansion sleeve, with the expansion sleeve distending, EXPANSION ANCHOR BOLTS is fixed in the union body during use.But profile is not attractive in appearance, and especially the fastening back of antitheft door bolt, nut weldering are one, and the nut volume is heavy, waste material, and the processing technology complexity causes EXPANSION ANCHOR BOLTS cost height.And the bloated nail of nylon tensile strength is low, and Applicable scope is little.Though prior art CN89204742.9 axial plug EXPANSION ANCHOR BOLTS is without expansion sleeve, still will being coupled part with nut, by EXPANSION ANCHOR BOLTS it to be close to fixing, and consume material is more like this, and difficulty of processing is also bigger.
The purpose of this utility model provides a kind of material and expends fewly, in light weight, simple in structure, easy to use, and cost is low dashes the core expandable nail.
The utility model by expandable nail with form towards core, be characterized in: the boss one end car of expandable nail becomes endoporus, and the other end symmetrical openings is divided into pintongs, and its external diameter has four wedge grooves, having an end of tapering to insert the endoporus of expandable nail towards core, is 30 ° towards core cone angle α.
Fig. 1 is a front view of the present utility model;
Fig. 2 is a side view of the present utility model;
Fig. 3 is of the present utility model towards the core front view.
The utility model is achieved in that the boss one end car of expandable nail (1) becomes endoporus, and closes up with 60 ° circular cone, and hole wall is thick to be 2mm.The effect of boss is the degree of depth that needs of controlling boring in advance.The other end symmetrical openings is divided into pintongs, and every 4mm car one wedge groove, the wedge groove depth is 1mm at its external diameter, altogether four wedge grooves of car.Effect is the circle edge frictional force that strengthens between expandable nail and the fixed connection body.Cone angle alpha towards core (2) is 30 °.Top diameter towards core is 2mm, the endoporus of expandable nail (1) be not more than 0.5mm towards the gap of core (2) external diameter, be not less than 0.2mm, be convenient to rivet hole, prevent to come off towards core (2).Material plain carbon steel towards the core expandable nail.During use expandable nail (1) is inserted in the boring in advance of union body, will have an end of tapering to insert the endoporus of expandable nail (1) towards core (2) then, hammering a little can make the symmetrical openings distending, will fix towards the core expandable nail.
The utility model beautiful shape, simple in structure, material saving, easy to use, can improve installation efficiency, tightness is good.
Claims (3)
1, a kind of towards the core expandable nail by expandable nail (1) with forms towards core (2), it is characterized in that: the boss one end car of expandable nail (1) becomes endoporus, and the other end symmetrical openings is divided into pintongs, and the endoporus of the end insertion expandable nail (1) of tapering is arranged towards core (2).
2, according to claim 1 towards the core expandable nail, it is characterized in that: expandable nail (1) symmetrical openings is divided into an end of pintongs, and its external diameter has four wedge grooves.
3, according to claim 1 towards the core expandable nail, it is characterized in that: cone angle α is 30 ° towards core (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92231150 CN2133703Y (en) | 1992-08-21 | 1992-08-21 | Expansion nail with punch core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92231150 CN2133703Y (en) | 1992-08-21 | 1992-08-21 | Expansion nail with punch core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2133703Y true CN2133703Y (en) | 1993-05-19 |
Family
ID=33774069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92231150 Expired - Fee Related CN2133703Y (en) | 1992-08-21 | 1992-08-21 | Expansion nail with punch core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2133703Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100347390C (en) * | 2005-01-31 | 2007-11-07 | 常华北 | External anchor steel reinforcing method for anchor bolt and reinforced concrete structure |
-
1992
- 1992-08-21 CN CN 92231150 patent/CN2133703Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100347390C (en) * | 2005-01-31 | 2007-11-07 | 常华北 | External anchor steel reinforcing method for anchor bolt and reinforced concrete structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |