CN205780136U - A kind of expansive fastening screw connection - Google Patents
A kind of expansive fastening screw connection Download PDFInfo
- Publication number
- CN205780136U CN205780136U CN201620501998.8U CN201620501998U CN205780136U CN 205780136 U CN205780136 U CN 205780136U CN 201620501998 U CN201620501998 U CN 201620501998U CN 205780136 U CN205780136 U CN 205780136U
- Authority
- CN
- China
- Prior art keywords
- fastening
- screw
- expansive
- screw connection
- limiting section
- 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
Abstract
The utility model discloses a kind of expansive fastening screw connection, belong to screw technique field.This expansive fastening screw connection, including having externally threaded shank of screw, one end of shank of screw is tightening nuts, the other end is tapering point, described tightening nuts includes fixing the fastening part that the limiting section being connected coordinates with fastening instrument with shank of screw, is fixed with and is connected polished rod between limiting section with fastening part.The connection polished rod of this expansive fastening screw connection is used for hanging object, convenient practical again, and fastening part, for being fastened by expansive fastening screw connection, prevents hung object landing from connecting polished rod simultaneously.
Description
Technical field
This utility model belongs to screw technique field, is specifically related to expansive fastening screw connection.
Background technology
The expansion sleeve that currently used swell fixture is typically had several notches by a sunk screw and afterbody forms, during use, sunk screw is screwed in expansion sleeve until screw head flushes with metope, by the conehead extrusion expansion sleeve pipe of sunk screw afterbody and make its dilatancy, reach the purpose of fastening in the reserved boring on body of wall.But when some special articles of installation need swell fixture act the effect of lifting or need to hang other article on swell fixture, it is necessary to make the head of swell fixture protrude metope one segment distance, now use the swell fixture of routine cannot ensure its fastening dynamics.
Utility model content
The purpose of the application is to provide a kind of expansive fastening screw connection, and this expansive fastening screw connection is possible not only to play the effect of expansion fastening, may be simultaneously used for hanging and lift other article.
For realizing object above, the technical solution adopted in the utility model is:
Expansive fastening screw connection, including having externally threaded shank of screw, one end of shank of screw is tightening nuts, the other end is tapering point, described tightening nuts includes fixing the fastening part that the limiting section being connected coordinates with fastening instrument with shank of screw, is fixed with and is connected polished rod between limiting section with fastening part.
The end face of described fastening part offers flat recess, cross recess or the polygonal blind hole for coordinating with fastening instrument.
The diameter of described connection polished rod is less than limiting section and the diameter of fastening part.
Described limiting section is annular conical surface towards the end face of shank of screw.
Expansive fastening screw connection of the present utility model, including having externally threaded shank of screw, one end of shank of screw is tightening nuts, the other end is tapering point, tightening nuts includes fixing the fastening part that the limiting section being connected coordinates with fastening instrument with shank of screw, is fixed with and is connected polished rod between limiting section with fastening part.Limiting section follows closely the position into metope for limiting expansive fastening screw connection.Connect polished rod and be used for hanging and lifting other article, convenient practical again.Fastening part, for being fastened by expansive fastening screw connection, prevents hung object landing from connecting polished rod simultaneously.
Expansive fastening screw connection of the present utility model, the end face of fastening part offers flat recess, cross recess or the polygonal blind hole for coordinating with fastening instrument, is used for fastening expansive fastening screw connection.Connect the diameter of polished rod less than limiting section and the diameter of fastening part, it is simple to hang object, prevent object landing.Limiting section is annular conical surface towards the end face of shank of screw, and the setting of annular conical surface makes the limiting section of expansive fastening screw connection and institute securing objects fit tightly so that the fastening force between expansive fastening screw connection and institute's securing objects is stronger.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model embodiment expansive fastening screw connection.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the utility model is described in further detail.
The embodiment of expansive fastening screw connection of the present utility model is as shown in Figure 1.
The expansive fastening screw connection of the present embodiment, including having externally threaded shank of screw 1, one end of shank of screw 1 is tightening nuts, the other end is tapering point, tightening nuts includes the fastening part 5 that the limiting section 4 that be connected fixing with shank of screw 1 coordinates with fastening instrument, and the end face of fastening part 5 offers the flat recess 3 for coordinating with fastening instrument.Limiting section 4 is annular conical surface towards the end face of shank of screw 1, limiting section 4 follows closely the position into securing objects for limiting expansive fastening screw connection, the setting of annular conical surface makes the limiting section 4 of expansive fastening screw connection and institute securing objects fit tightly so that the fastening force between expansive fastening screw connection and institute's securing objects is stronger.
Being fixed with between limiting section 4 with fastening part 5 and be connected polished rod 2, the diameter connecting polished rod 2 is used for hanging object less than limiting section 4 and the diameter of fastening part 5, connection polished rod 2, the most practical.
Claims (4)
1. expansive fastening screw connection, including having externally threaded shank of screw, one end of shank of screw is tightening nuts, the other end is tapering point, it is characterized in that, described tightening nuts includes the fastening part fixed the limiting section being connected with shank of screw and coordinate with fastening instrument, is fixed with and is connected polished rod between limiting section with fastening part.
Expansive fastening screw connection the most according to claim 1, it is characterised in that the end face of described fastening part offers flat recess, cross recess or the polygonal blind hole for coordinating with fastening instrument.
Expansive fastening screw connection the most according to claim 1, it is characterised in that the diameter of described connection polished rod is less than limiting section and the diameter of fastening part.
Expansive fastening screw connection the most according to claim 1, it is characterised in that described limiting section is annular conical surface towards the end face of shank of screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620501998.8U CN205780136U (en) | 2016-05-30 | 2016-05-30 | A kind of expansive fastening screw connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620501998.8U CN205780136U (en) | 2016-05-30 | 2016-05-30 | A kind of expansive fastening screw connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205780136U true CN205780136U (en) | 2016-12-07 |
Family
ID=59978487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620501998.8U Expired - Fee Related CN205780136U (en) | 2016-05-30 | 2016-05-30 | A kind of expansive fastening screw connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205780136U (en) |
-
2016
- 2016-05-30 CN CN201620501998.8U patent/CN205780136U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20200530 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |