CN201192834Y - Steel wedge and extension rod - Google Patents
Steel wedge and extension rod Download PDFInfo
- Publication number
- CN201192834Y CN201192834Y CNU2007201771721U CN200720177172U CN201192834Y CN 201192834 Y CN201192834 Y CN 201192834Y CN U2007201771721 U CNU2007201771721 U CN U2007201771721U CN 200720177172 U CN200720177172 U CN 200720177172U CN 201192834 Y CN201192834 Y CN 201192834Y
- Authority
- CN
- China
- Prior art keywords
- gad
- tetragonal
- extension bar
- cylinder
- connecting rod
- 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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Abstract
The utility model relates to a steel wedge and a connecting rod. The upper-end head part of the original steel wedge is stricken to remove the cylindrical part and left a tetragonal part. The connecting rod is made of a cylindrical steel bar. The upper-end head part of the connecting rod is tetragonal. The upper edges of the connecting rod are chamfered to facilitate the striking and the wrenching operations. The lower end of the cylindrical steel bar is machined to form an inwards-depressed tetragonal part. The outer circumference of the inwards-depressed tetragonal part is excited to form a magnetic ring. When in use, the tetragonal part of the steel wedge is embedded inside the inwards-depressed tetragonal part of the connecting bar, so that the steel wedge can be inserted into a slit or a narrow space to pull a screw rod out of a threaded hole by the roots.
Description
Affiliated technical field
The utility model relates to a kind of repair of machine instrument, the extension bar of specifically a kind of gad and lengthening.
Background technology
Present gad (the application number: ZL200720147071.X) that uses, the alignment root breaks at screw rod in the screw and rises and dial, provide great convenience, but to break in the slit or space that the room for maneuver is narrow and small in screw rod, be difficult to operation owing to the handle of gad falls short of, connect and strike it, easy again slippage with other iron staff and so on, be difficult for operation, bring difficulty for the cutting-off screw rod.
The utility model content
For overcome existing gad can not to break in the slit or space that the room for maneuver is narrow and small in screw rod work the deficiency of dialling, the utility model provides a kind of gad extension bar, this gad extension bar is the shank of spreading gad not only, and have magnetic at the head of extension bar, can landing after making gad be inserted in extension bar.
The technical scheme in the invention for solving the technical problem is; (application number: ZL200720147071.X), the cylinder of head upper end is reserved cubic cylinder, the upper sideline chamfering of tetragonal body, flange when avoiding beaing to remove existing gad.The lengthening extension bar is made by steel cylinder, at cylindrical upper end tetragonal body, is convenient to the spanner operation, make interior four jiaos of holes in cylindrical lower end, size just in time is inserted in the cubic cylinder in gad upper end, and the cylindrical in the Nei Sijiao hole swashs into magnetic rings, in order to avoid extension bar landing with gad disengagement during work.Gad is inserted in interior four jiaos of holes of extension bar during use, just can stretches in slit and the space, thus reached dial break in the slit or space that the room for maneuver is narrow and small in the purpose of screw rod.
The beneficial effects of the utility model are, can conveniently rise dial break in the slit or space that the room for maneuver is narrow and small in screw rod, the design of magnetic rings is inserted in behind the extension bar not gad can landing, simple in structure.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 removes gad example structure figure behind the head cylinder.
Fig. 2 is gad extension bar example structure figure.
Among the figure 1, gad head tetragonal body 2, chamfering 3, gad 4, extension bar head tetragonal body 5, cylinder 6, interior four jiaos of holes 7, magnetic rings 8, head chamfering.
The specific embodiment
In Fig. 1, the head of original gad (3) removed and hit cylinder, reserve tetragonal body (1), be cut into chamfering (2) at the upper sideline of tetragonal body.
Make tetragonal body (4) in the upper end of cylinder (5) among Fig. 2, in tetragonal body upper sideline corner cut chamfering (8).Make interior four jiaos of holes (6) in the lower end of cylinder (5), size just in time is inserted in the tetragonal body (1) of the upper end of gad (3).The cylindrical in four jiaos of holes in the lower end of cylinder (5) carries out excitatoryly, makes it have magnetic rings (7).
Claims (3)
1. gad and extension bar are hit cylinder with the head of original gad and are removed, and extension bar is made with the cylinder steel, it is characterized in that; Make tetragonal body in the cylinder upper end, and carry out chamfering at the tetragonal body upper sideline.
2. a kind of gad according to claim 1 and extension bar is characterized in that; Four jiaos of holes in the extension bar cylinder lower end system, size just in time is inserted in the tetragonal body of gad upper end.
3. a kind of gad according to claim 1 and extension bar is characterized in that; Periphery in interior four jiaos of holes of extension bar is made sharp magnetic rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201771721U CN201192834Y (en) | 2007-09-24 | 2007-09-24 | Steel wedge and extension rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201771721U CN201192834Y (en) | 2007-09-24 | 2007-09-24 | Steel wedge and extension rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201192834Y true CN201192834Y (en) | 2009-02-11 |
Family
ID=40392379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201771721U Expired - Fee Related CN201192834Y (en) | 2007-09-24 | 2007-09-24 | Steel wedge and extension rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201192834Y (en) |
-
2007
- 2007-09-24 CN CNU2007201771721U patent/CN201192834Y/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090211 |