CN201291433Y - Limited slip device of straight screwdriver - Google Patents
Limited slip device of straight screwdriver Download PDFInfo
- Publication number
- CN201291433Y CN201291433Y CNU2008202099810U CN200820209981U CN201291433Y CN 201291433 Y CN201291433 Y CN 201291433Y CN U2008202099810 U CNU2008202099810 U CN U2008202099810U CN 200820209981 U CN200820209981 U CN 200820209981U CN 201291433 Y CN201291433 Y CN 201291433Y
- Authority
- CN
- China
- Prior art keywords
- screwdriver
- hole
- trigger
- round hole
- head
- 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
Landscapes
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
Disclosed is a straight screwdriver trigger. A cylinder provided with two concentric round holes with different diameters is sleeved on a rod body of a screwdriver in common use; the upper small round hole is hitched on the rod body and the lower big round hole is hitched on a screwdriver head; and a peep hole is arranged on the wall of the big round hole. When in use, the screwdriver head and the head of a screw are nested in the big round hole of the trigger, and a user can see from the peep hole whether the screwdriver head is embedded in a straight slot. During the operation, even if the screwdriver slides transversely in the straight slot, the big round hole of the trigger can prevent the screwdriver head from moving by a large margin, thus reaching the purpose of stopping slipping and avoiding that when force is exerted, the screwdriver head slides suddenly and causes injury and damage to the hands of the user and the machine members.
Description
Affiliated technical field
The utility model relates to a kind of screwdriver, specifically straight screwdriver prevent to operate the time landing from the screw terminal device.
Background technology
Straight screwdriver is in when operation, cutter head landing the flat recess from screw terminal often, find notch again accurately and go operation again, time-consuming trouble again, when firmly big in operation sometimes, landing suddenly, not doing a good job to injure finger and hand, also can damage near parts.
The utility model content
In order to overcome the in operation easily defective of landing from the screw terminal of straight screwdriver, the utility model provides a kind of straight screwdriver trigger, and it is traversing in the notch of screw that this trigger can limit cutter head, thereby prevent its landing.
The utility model solves the technical measures that its technical problem takes, on the shaft of straight screwdriver commonly used, be inserted in a cylinder, open two concentric circle holes that diameter is different in the cylinder, little Circularhole diameter is a bit larger tham shaft, big Circularhole diameter is a bit larger tham the Breadth Maximum of driver bit, and the length of its circular hole is greater than the length of cutter head.On the relative cutter head of big hole the edge of a knife around perforate, observe the position of straight trough on the edge of a knife and the screw terminal in being convenient to operate, on the barrel at small sircle hole place, open the countersunk head screw hole, with the fixing trigger of countersunk head screw.During use, be enclosed within trigger on the screw terminal together with driver bit, from peep hole, can find out groove and cutter head, the turn of the screw of after cutter head embeds straight trough, just can exerting oneself, even cutter head has horizontal slip slightly in notch, trigger just can be placed restrictions on it and laterally be slided significantly, prevents the straight screwdriver purpose of landing the notch from screw terminal in operation thereby reach.
The beneficial effects of the utility model are, avoid the straight screwdriver unexpected caused finger injuries of landing and damage of parts when operation, and handled easily is simple in structure.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the structure chart of straight screwdriver trigger.
Among the figure, 1, handle, 2, shaft, 3, trigger, 4, peep hole, 5, the countersunk head screw hole, 6, small sircle hole, 7, big hole.
The specific embodiment
In Fig. 1, handle 1 connects shaft 2, and the small sircle hole 6 of trigger 3 is enclosed within on the shaft 2, and big hole 7 is inserted in cutter head 8, opens countersunk head screw hole 5 on small sircle hole 6 walls, opens peep hole 4 on the wall of big hole.
Claims (2)
1, straight screwdriver trigger, cylinder that has the different concentric circle holes of two diameters of cover on the shaft of screwdriver commonly used, it is characterized in that: top small sircle hole is enclosed within on the shaft, following big hole is enclosed within on the cutter head, the length of big hole is opened peep hole greater than the length of cutter head on the wall of big hole.
2, straight screwdriver trigger according to claim 1 is characterized in that: open the countersunk head screw hole on the wall of small sircle hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202099810U CN201291433Y (en) | 2008-10-22 | 2008-10-22 | Limited slip device of straight screwdriver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202099810U CN201291433Y (en) | 2008-10-22 | 2008-10-22 | Limited slip device of straight screwdriver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201291433Y true CN201291433Y (en) | 2009-08-19 |
Family
ID=41004890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202099810U Expired - Fee Related CN201291433Y (en) | 2008-10-22 | 2008-10-22 | Limited slip device of straight screwdriver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201291433Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108608360A (en) * | 2018-06-26 | 2018-10-02 | 苏州佳世达光电有限公司 | Screwdriver |
-
2008
- 2008-10-22 CN CNU2008202099810U patent/CN201291433Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108608360A (en) * | 2018-06-26 | 2018-10-02 | 苏州佳世达光电有限公司 | Screwdriver |
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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: 20090819 Termination date: 20111022 |