CN2320832Y - Expansion bolt - Google Patents
Expansion bolt Download PDFInfo
- Publication number
- CN2320832Y CN2320832Y CN 98213037 CN98213037U CN2320832Y CN 2320832 Y CN2320832 Y CN 2320832Y CN 98213037 CN98213037 CN 98213037 CN 98213037 U CN98213037 U CN 98213037U CN 2320832 Y CN2320832 Y CN 2320832Y
- Authority
- CN
- China
- Prior art keywords
- screw
- steel
- steel ball
- utility
- steel bushing
- 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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- Dowels (AREA)
Abstract
The utility model relates to an expansion screw composed of a steel sleeve, a standard steel ball and a screw. The front end of the steel sleeve inside which a steel ball is provided is provided with a cross-shaped notch along the axial direction, and the other end of the steel sleeve is provided with inner screw-threads for screwing in the screw. When the screw is screwed in and is abutted against the steel ball, the steel ball transfers the axial force to the front end of the steel sleeve so that the cross-shaped notch arranged at the front end is expanded outward in a petal shape. The utility model has the advantages of easy fabrication and convenient operation.
Description
The utility model belongs to the mechanical parts technical field, is a kind of setscrew.
Setscrew is mainly used in people and fixedly mounts object on building, and it has brought convenience to people's lives, and existing setscrew is simple in structure, but the manufacturing process complexity, the versatility of part is poor.
The purpose of the utility model just is existing setscrew is done an improvement, and provides a kind of manufacturing process simple, the setscrew that part universality is good.
The purpose of this utility model is achieved in that a kind of setscrew, form by steel bushing (1), steel ball (2), screw (3), an end that it is characterized in that steel bushing (1) has the cross notch vertically, and the other end is shaped on internal thread, and in the steel bushing (1) steel ball (2) is housed.As long as screw (3) is screwed in the steel bushing (1), withstand steel ball (2) during use, its axial force will force the cross recess of steel bushing (1) front end to be that flap struts and to radially expanding.
Adopt effect of the present utility model to be: only need steel bushing of processing, and steel ball, screw all are the standard piece of easily purchasing, and can select the different screw of length according to the thickness of the fixing object of need, easy to use so manufacturing process is simple, part universality is good.
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is a structure diagram of the present utility model.
Fig. 2 is an A-A sectional drawing among Fig. 1.
As shown in the figure, steel bushing (1) is the cylindrical sleeve of a hollow, its front end edge axially has a long cross notch, and its effect is can make the front end of steel bushing (1) be flap separately along notch after it is subjected to axial force that steel ball (2) transmits, realizes radial expansion.The rear end of steel bushing (1) is shaped on internal thread, is used to be screwed into screw (3).Steel ball (2) is contained in the steel bushing (1), and its effect is an axial force of transmitting screw (3), also reduces screw (3) warping force to steel bushing (1) when rotating simultaneously.Screw (3) is a standard bolt, and its effect is to be screwed into to produce axial force in the steel bushing (1), and it also is that this setscrew is connected fastening connection fastening piece with required installation object simultaneously.It can select its length according to the actual (real) thickness that object is installed.
Therefore its workpiece has only a steel bushing (1), and steel ball (2) and screw (3) are standard piece, so manufacturing process is simple, uses also more convenient.
Claims (1)
- A kind of setscrew is made up of steel bushing (1), steel ball (2), screw (3), it is characterized in that an end of steel bushing (1) has the cross notch vertically, and the other end is shaped on internal thread, and in the steel bushing (1) steel ball (2) is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98213037 CN2320832Y (en) | 1998-02-23 | 1998-02-23 | Expansion bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98213037 CN2320832Y (en) | 1998-02-23 | 1998-02-23 | Expansion bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2320832Y true CN2320832Y (en) | 1999-05-26 |
Family
ID=33967132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98213037 Expired - Fee Related CN2320832Y (en) | 1998-02-23 | 1998-02-23 | Expansion bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2320832Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291711A (en) * | 2013-06-18 | 2013-09-11 | 上海传贺自动化设备有限公司 | Positioning fixing pin |
-
1998
- 1998-02-23 CN CN 98213037 patent/CN2320832Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291711A (en) * | 2013-06-18 | 2013-09-11 | 上海传贺自动化设备有限公司 | Positioning fixing pin |
| CN103291711B (en) * | 2013-06-18 | 2016-07-06 | 上海传贺自动化设备有限公司 | Location steady pin |
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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 |