CN2559822Y - Inverted-cone expansion screw - Google Patents
Inverted-cone expansion screw Download PDFInfo
- Publication number
- CN2559822Y CN2559822Y CN 02276119 CN02276119U CN2559822Y CN 2559822 Y CN2559822 Y CN 2559822Y CN 02276119 CN02276119 CN 02276119 CN 02276119 U CN02276119 U CN 02276119U CN 2559822 Y CN2559822 Y CN 2559822Y
- Authority
- CN
- China
- Prior art keywords
- screw mandrel
- flexuose
- taper
- taper pin
- model
- 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
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- Dowels (AREA)
Abstract
The utility model relates to an inverted-cone inflated screw nail, which is composed of a screw rod, a hexagonal screw, a washer and a saw-tooth-shaped taper bolt. The utility model is characterized by easy assembly, secure connected installation and disposability; the utility model is suitable for being applied in households appliance installation, construction installation and equipment connected installation.
Description
The utility model relates to a kind of fastening or fixed component.
Existing screw, fastening by axial force, easily loosening; The existing swell fixture that is used for electrical equipment, construction and installation, the radially fastening force of expansion is little, connects insecure.
The utility model is intended to overcome the shortcoming of prior art, and a kind of back taper formula swell fixture is provided, and increases radially fastening force, and connection is firm.
The purpose of this utility model is achieved in that back taper formula swell fixture is made of screw mandrel 1, hexagon nut 2, packing ring 3, flexuose taper pin 4.Hexagon nut 2, packing ring 3 are loaded on the threaded stem at screw mandrel 1 rear portion, and the front portion of screw mandrel 1 is four and distinguishes pawl, and inside is shaped on pre-large post-small back taper hole, and front end is shaped on claw.Flexuose taper pin 4 is pre-small post-large step type taper pin.The back taper hole of flexuose taper pin and screw mandrel front portion is made cubic taper or taper shape accordingly, 10 °～20 ° of cone angles.During use the front portion of flexuose taper pin 4 is inserted in the claw hole of screw mandrel 1 front end, be driven into, make four of screw mandrel 1 front portion distinguish that pawl expands with hammer.
The utlity model has easy for installationly, connection is firm, disposable characteristics.Suitable household electric appliance installation, construction and installation, equipment connection are used.
The utility model further describes below with reference to the embodiment among the figure:
Fig. 1 is a structural drawing, adopts local portion to look and draws.Constitute by screw mandrel 1, hexagon nut 2, packing ring 3, flexuose taper pin 4.Hexagon nut 2, packing ring 3 are selected universal standard part for use.Screw mandrel 1, flexuose taper pin 4 usefulness Cast Steel or A
3Steel is made.The back taper hole of flexuose taper pin 4 and screw mandrel 1 front portion is made cubic taper or taper shape accordingly, 10 °～20 ° of cone angles.
Claims (1)
- Back taper formula swell fixture is made of screw mandrel, hexagon nut, packing ring, flexuose taper pin, it is characterized in that: the front portion of screw mandrel is four and distinguishes pawl, and its inside is shaped on pre-large post-small back taper hole, and front end is shaped on claw; The flexuose taper pin is pre-small post-large step type taper pin; The back taper hole of flexuose taper pin and screw mandrel front portion is made tetragonal pyramid formation or conical, 10 °～20 ° of cone angles accordingly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02276119 CN2559822Y (en) | 2002-08-13 | 2002-08-13 | Inverted-cone expansion screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02276119 CN2559822Y (en) | 2002-08-13 | 2002-08-13 | Inverted-cone expansion screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2559822Y true CN2559822Y (en) | 2003-07-09 |
Family
ID=33740029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02276119 Expired - Fee Related CN2559822Y (en) | 2002-08-13 | 2002-08-13 | Inverted-cone expansion screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2559822Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192224A (en) * | 2010-12-10 | 2011-09-21 | 上海康驰建筑技术有限公司 | Anchor bolt and anchoring method matched with anchor bolt |
-
2002
- 2002-08-13 CN CN 02276119 patent/CN2559822Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192224A (en) * | 2010-12-10 | 2011-09-21 | 上海康驰建筑技术有限公司 | Anchor bolt and anchoring method matched with anchor bolt |
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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 |