CN2415193Y - Expension screw - Google Patents
Expension screw Download PDFInfo
- Publication number
- CN2415193Y CN2415193Y CN 00202000 CN00202000U CN2415193Y CN 2415193 Y CN2415193 Y CN 2415193Y CN 00202000 CN00202000 CN 00202000 CN 00202000 U CN00202000 U CN 00202000U CN 2415193 Y CN2415193 Y CN 2415193Y
- Authority
- CN
- China
- Prior art keywords
- outer sleeve
- pin
- post
- overcoat
- nail
- 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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- Orthopedics, Nursing, And Contraception (AREA)
Abstract
The utility model relates to an expansion pin, which comprises an outer sleeve and a pin post, wherein, the inner surface of the outer sleeve is provided with another inner cone shape at least at the point of the back end, and the back part of the outer sleeve is provided with a slot channel; the front end of the pin post is appropriate to be provided with a dummy club. Because the inner surface of the outer sleeve of the expansion pin forms the inner cone shape at the back end, the back part of the outer sleeve is provided with an open slot, the expansion pin is inserted into a hole after a fastening hole is punched, the pin post is hammered by a hammer to oppress the outer sleeve to be expanded, and the expansion pin can be fixed. Because the front end of the pin post is provided with the dummy club, the pin post is locked tightly and automatically by the dummy club after the dummy club inside the pin post is pushed out of the outer sleeve so as to prevent the expansion pin from loosening.
Description
The utility model relates to a kind of fastening piece, particularly a kind of expandable nail.
At present, in fastener areas, EXPANSION ANCHOR BOLTS is arranged roughly, swell fixture is several.EXPANSION ANCHOR BOLTS must be carried out fasteningly with spanner in fastening process, uses inconvenient.And swell fixture is generally wanted earlier its plastic wrapper to be placed in the fastener hole, with screw-driver screw is screwed in then, and it uses also inconvenient.
The purpose of this utility model is: a kind of simple in structure, easy to use, expandable nail with auto-lock function is provided.
In order to reach above-described purpose, the utility model is achieved through the following technical solutions:
A kind of expandable nail comprises overcoat, nail post, and the overcoat internal surface is taper in to being less than rear end, and the overcoat rear portion has conduit.
In the utility model, described nail post front end preferably is provided with a boss.
Advantage of the present utility model is: because expandable nail overcoat internal surface is taper in rear end, the overcoat rear portion is provided with fluting, after accomplishing fluently fastener hole, expandable nail is inserted in the hole, and beats nail post compressing overcoat distending with hammer, just can be fixed.Because nail post front end is provided with a boss, after the boss in the nail post is pushed out overcoat, boss will be followed closely the post auto lock, in case expandable nail is loosening.
Be elaborated the utility model in order more clearly to illustrate below in conjunction with drawings and Examples:
Fig. 1 is a schematic representation of the present utility model.
Fig. 2 is embodiment's 1 an of the present utility model sectional view.
Fig. 3 is embodiment's 2 an of the present utility model sectional view.
As shown in Figure 1 and Figure 2, expandable nail is made of overcoat 1 and nail post 2, and the rear portion of overcoat 1 has some conduits 3.When nail post 2 inserted the overcoat rear portion, nail post compressing overcoat bulged its rear portion, and expandable nail is anchored in the hole.The boss 4 of nail post front end is stuck in overcoat limit end immediately.
As shown in Figure 3, nail post 2 front end surface are heaved, and when the nail post inserts overcoat 1, heave portion's compressing overcoat, overcoat fluting place are bulged, to play fastening effect.
Claims (2)
1, a kind of expandable nail comprises overcoat, nail post, it is characterized in that: the overcoat internal surface is taper in to being less than rear end, and the overcoat rear portion has conduit.
2, expandable nail according to claim 1 is characterized in that: described nail post front end is provided with boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00202000 CN2415193Y (en) | 2000-01-18 | 2000-01-18 | Expension screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00202000 CN2415193Y (en) | 2000-01-18 | 2000-01-18 | Expension screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2415193Y true CN2415193Y (en) | 2001-01-17 |
Family
ID=33571121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00202000 Expired - Fee Related CN2415193Y (en) | 2000-01-18 | 2000-01-18 | Expension screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2415193Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374973A (en) * | 2019-08-22 | 2019-10-25 | 闫自超 | A kind of detachable expansion nail |
| CN111794634A (en) * | 2020-07-22 | 2020-10-20 | 郭海瑞 | Downward-pressing inner expansion nail and door and window fixing method |
-
2000
- 2000-01-18 CN CN 00202000 patent/CN2415193Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374973A (en) * | 2019-08-22 | 2019-10-25 | 闫自超 | A kind of detachable expansion nail |
| CN111794634A (en) * | 2020-07-22 | 2020-10-20 | 郭海瑞 | Downward-pressing inner expansion nail and door and window fixing method |
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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 |