CN201687824U - Cylinder head screw with two square open slots - Google Patents
Cylinder head screw with two square open slots Download PDFInfo
- Publication number
- CN201687824U CN201687824U CN2010201371167U CN201020137116U CN201687824U CN 201687824 U CN201687824 U CN 201687824U CN 2010201371167 U CN2010201371167 U CN 2010201371167U CN 201020137116 U CN201020137116 U CN 201020137116U CN 201687824 U CN201687824 U CN 201687824U
- Authority
- CN
- China
- Prior art keywords
- head screw
- sides
- open slots
- screw
- square open
- 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
A cylinder head screw with two square open slots adopts the following structure: a cylinder disc is arranged at the upper end of a screw rod of the cylinder head screw with two square open slots, two square open slots in a symmetrical manner are arranged on the diameter of the cylinder disc; the square open slots are of an opening surface on the top surface of the cylinder disc and an opening surface on the cylinder surface of the cylinder disc; a certain thickness is arranged between the bottom surfaces of the two square open slots and the bottom surface of the cylinder disc. As the contact area between the cylinder head screw with two square open slots and the edge of the special screwdriver is large, the special screwdriver during the assembling and disassembling of the cylinder head screw with two square open slots has the advantage of slip protection.
Description
Affiliated technical field
The utility model relates to a kind of fillister head screw device, especially can use the special-purpose fillister head screw that changes both sides' shape opening slot that cutter can not skid when installation screws screw and knockout screw.
Background technique
At present, known screw is by screw rod and screw socket cap, or nose cone or cup head formation.Nose cone screw in the screw since this nose cone screw to change the cutter groove shallow, when use changes this nose cone screw of cutter installation or removal, change cutter and skid easily.
Summary of the invention
To change the cutter groove shallow in order to overcome the nose cone screw, change the deficiency that cutter skids easily at installation or removal nose cone screw, the utility model provides a kind of fillister head screw of the both sides' of having shape opening slot, the fillister head screw of this both sides' shape opening slot, two square aperture grooves degree of depth on the screw cylinder plate is darker, it is big that special use changes edge of a knife contact both sides shape opening slot area, the special use when using special use to change the cutter installation and removal of the fillister head screw of this both sides' shape opening slot changes cutter can not skid, thereby makes easy for installation.
The technological scheme that its technical problem that solves the utility model adopts is: the fillister head screw structure of both sides' shape opening slot is: the square aperture groove that has two symmetric arrangement on the cylinder plate diameter of its screw rod upper end, the square aperture groove is an opening surface on the cylndrical surface of the cylinder plate of both sides' shape opening slot fillister head screw, the square aperture groove is an opening surface at the cylinder plate end face of both sides' shape opening slot fillister head screw, and there is certain thickness the bottom surface of square aperture groove apart from the cylinder plate bottom surface of both sides' shape opening slot fillister head screw.
The beneficial effects of the utility model are: the fillister head screw of both sides' shape opening slot, special use changes cutter and can not skid when using the special-purpose fillister head screw that changes this both sides' of having shape opening slot of cutter installation and removal.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the structural drawing of the fillister head screw of the utility model both sides shape opening slot.
Fig. 2 is an A-A cross sectional view of the present utility model.
Among Fig. 11, cylinder plate, 2, the square aperture groove, 3, screw rod
Embodiment
In Fig. 1, screw rod (3), cylinder plate (1), square aperture groove (2) is linked in sequence, the structure of both sides' shape opening slot fillister head screw is: the upper end of the screw rod (3) of the fillister head screw of both sides' shape opening slot is the square aperture groove (2) that has two symmetric arrangement on its cylinder plate of cylinder plate (1) (1) diameter, square aperture groove (2) is an opening surface at cylinder plate (1) end face of both sides' shape opening slot fillister head screw, square aperture groove (2) is an opening surface on the cylndrical surface of the cylinder plate (1) of both sides' shape opening slot fillister head screw, and there is certain thickness square aperture groove (2) bottom surface apart from cylinder plate (1) bottom surface of both sides' shape opening slot fillister head screw.
Claims (1)
1. fillister head screw with both sides' shape opening slot, screw rod, cylinder plate, the sequence interlock of square aperture groove, it is characterized in that: the structure of the fillister head screw of both sides' shape opening slot is: the upper end of the screw rod of the fillister head screw of both sides' shape opening slot is a cylinder plate, the square aperture groove that has two symmetric arrangement on its cylinder plate diameter, the square aperture groove is an opening surface at the cylinder plate end face of both sides' shape opening slot fillister head screw, the square aperture groove is an opening surface in the cylndrical surface of the cylinder plate of both sides' shape opening slot fillister head screw, and the square aperture groove bottom has certain thickness apart from the cylinder plate bottom surface of both sides' shape opening slot fillister head screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201371167U CN201687824U (en) | 2010-03-22 | 2010-03-22 | Cylinder head screw with two square open slots |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201371167U CN201687824U (en) | 2010-03-22 | 2010-03-22 | Cylinder head screw with two square open slots |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201687824U true CN201687824U (en) | 2010-12-29 |
Family
ID=43376106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201371167U Expired - Fee Related CN201687824U (en) | 2010-03-22 | 2010-03-22 | Cylinder head screw with two square open slots |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201687824U (en) |
-
2010
- 2010-03-22 CN CN2010201371167U patent/CN201687824U/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: 20101229 Termination date: 20120322 |