CN2934702Y - Screw-in type expansion screw - Google Patents
Screw-in type expansion screw Download PDFInfo
- Publication number
- CN2934702Y CN2934702Y CN 200620096741 CN200620096741U CN2934702Y CN 2934702 Y CN2934702 Y CN 2934702Y CN 200620096741 CN200620096741 CN 200620096741 CN 200620096741 U CN200620096741 U CN 200620096741U CN 2934702 Y CN2934702 Y CN 2934702Y
- Authority
- CN
- China
- Prior art keywords
- screw
- expansion
- nut
- bolt
- utility
- 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
Links
- 238000012856 packing Methods 0.000 claims abstract description 5
- 230000008961 swelling Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Landscapes
- Dowels (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The utility model discloses a screw-in expansion screw, open the cylindrical expansion cover that has three notches including tight nut, bolt, two packing rings and one end and constitute. The method is characterized in that: the expansion nut is in a conical shape, a small opening of the expansion nut is matched with one end of the cylinder into a whole, a screw hole is formed in the middle of the expansion nut, and when the expansion nut is used, a bolt penetrates through the washer and the end, not provided with the groove, of the expansion sleeve and is screwed into the screw hole in the expansion nut for fastening. The utility model has the advantages of novel structure, reasonable, convenient to use, material saving can also select for use the bolt of different structures.
Description
Technical field
The utility model relates to a kind of fastening piece, relates to a kind of wresting-in type swell fixture specifically.
Background technique
The social at present swell fixture that uses of going up mostly is that the front end that inserts in the expansion sleeve is inverted round platform, promptly pre-large post-small, and be connected as a single entity with screw rod, usually stay the long screw rod of a joint when hammering into body of wall outside, both influenced attractive in appearance, the redundance that needs gas cutting tool or handsaw to be exposed again.Simultaneously, when the workmen finds to bore wrong position and when need taking out screw rod, for above-mentioned reasons, pulls outward to cut out body of wall and draw pine, destroyed wall body structure.Therefore this swell fixture had both used inconvenience, wasted raw material again.
Summary of the invention
The purpose of this utility model provides a kind of existing shortcoming of original swell fixture, novel structure, wresting-in type swell fixture easy to use of having improved.
The utility model is realized by following technological scheme.
The utility model is made up of the cylindrical expansion sleeve 5 that swelling nut 1, bolt 2, packing ring 3 and an end have three notches, it is characterized in that: swelling nut 1 is conical, its osculum and cylinder one end coincide in aggregates, a screw is opened in the centre, during use, it is fastening that bolt 2 is passed the screw that an end of packing ring 3 and expansion sleeve 5 unslotteds is screwed in the swelling nut 1.The utility model has the advantages that novel structure, rationally, easy to use, economical with materials can also be selected the bolt of different structure for use.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further detailed description.
Swelling nut 1 is processed into taper shape, its osculum and cylinder one end coincide in aggregates, a screw is opened in the centre, the nut front end is inserted the end that expansion sleeve 5 has three notches, again the other end of bolt 2 from expansion sleeve 5 inserted, be screwed into the screw in the swelling nut 1, because bolt 2 is screwed into by packing ring 3, stressed firm, can one control the swelling of screw to greatest extent.
Claims (1)
1, a kind of wresting-in type swell fixture, the cylindrical expansion sleeve (5) that is had three notches by swelling nut (1), bolt (2), packing ring (3), (4) and an end is formed, it is characterized in that: swelling nut (1) is conical, its osculum and cylinder one end coincide in aggregates, a screw is opened in the centre, and bolt (2) passes expansion sleeve (5) and is screwed into screw in the swelling nut (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620096741 CN2934702Y (en) | 2006-05-17 | 2006-05-17 | Screw-in type expansion screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620096741 CN2934702Y (en) | 2006-05-17 | 2006-05-17 | Screw-in type expansion screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2934702Y true CN2934702Y (en) | 2007-08-15 |
Family
ID=38351391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620096741 Expired - Fee Related CN2934702Y (en) | 2006-05-17 | 2006-05-17 | Screw-in type expansion screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2934702Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939440A (en) * | 2014-04-29 | 2014-07-23 | 欧卉 | Stepped conical nut fastener |
-
2006
- 2006-05-17 CN CN 200620096741 patent/CN2934702Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939440A (en) * | 2014-04-29 | 2014-07-23 | 欧卉 | Stepped conical nut fastener |
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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: 20070815 |