CN2294814Y - Crank screw precession unit - Google Patents
Crank screw precession unit Download PDFInfo
- Publication number
- CN2294814Y CN2294814Y CN 97237959 CN97237959U CN2294814Y CN 2294814 Y CN2294814 Y CN 2294814Y CN 97237959 CN97237959 CN 97237959 CN 97237959 U CN97237959 U CN 97237959U CN 2294814 Y CN2294814 Y CN 2294814Y
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- CN
- China
- Prior art keywords
- crank
- utility
- model
- revolving
- screw
- 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 discloses a crank screw revolving unit, composed of a crank (1) and a revolving rod (2). The crank (1) is L-shaped, and the crank (1) is in nut locking connection with the revolving rod (2). The revolving rod (2) is a set of multiple use revolving rods with different structures, so the utility model solves the problems that a straight handle screw revolving unit of the prior art wastes labor and the operation is inconvenient and also solves the problems that an automatic (or electric) screw revolving unit and a screw revolving unit with a movable handle has complicated structure, high cost, etc. The utility model has the advantages of simple structure, convenient operation, low cost, etc., and the utility model is time saving and labor saving and can be used in any occasion of disassembling and assembling screws nails (screws).
Description
The utility model relates to a kind of tool that revolves, especially a kind of crank screw rotating tools of using more.
In the prior art, general screw rotating tool is that staight shank revolves tool, and the frictional force that it produces when gripping swing handle by operator's hand changes torsional moment (arm of force is the swing handle radius) into, screw is screwed or is got loose by this torsional moment.This mode of operation is because the arm of force is shorter, and operation effort and efficient are low.Existing comparatively advanced revolving have electronic screw rotating tool, the screw rotating tool and the handle screw rotating tool etc. of living automatically, reduced operator's labour intensity, improved operating efficiency.But these screw rotating tools all have a common drawback: structure complexity, use inconvenience and price is more expensive, especially be not easy to family or individual's use, thereby its application is restricted.
The purpose of this utility model be to provide a kind of simple in structure, easy to make, price is lower, easy to use and more common staight shank screw rotating tool labour-saving crank screw rotating tool.
In order to achieve the above object, the utility model adopts following technical scheme: design a kind of crank screw rotating tool, be made of crank (1) and swing arm (2), crank (1) is L-shaped, " Γ " shape or " ", and crank (1) adopts the nut self-tightening type to be connected with swing arm (2).
The utility model technical scheme preferably can be: the cross section ovalize of horizontal shank portion, and to be convenient to the operator and to be used to hold with a firm grip, the cross section of perpendicular shank portion is then rounded.The length of horizontal handle is 120 millimeter preferably, and its oval major diameter is preferably in 40～50 millimeters scopes, and the application point that makes the operator hold the active force when using is 70～80 millimeter apart from perpendicular shank portion distance between center line.The circular diameter of the cross section of perpendicular shank portion is 30～35 millimeters, and the length of perpendicular handle is 150 millimeter, and above-mentioned size is suitable for common operator and uses.Crank can be that the Integratively casting forms, and for electronic screw rotating tool, automatic screw rotating tool and the handle screw rotating tool of living, its processing and manufacturing is greatly simplified, and production cost greatly reduces.
The utility model technical scheme preferably can also be: swing arm (2) is one group of swing arm of using that structure is different more, as the end of swing arm (2) for being flat, quincunx and be similar to the hex slot shape etc. of sleeve lobe hand, to adapt to pine or tight various screw.
Crank (1) adopts the nut check formula to be connected with swing arm (2), as adopting the connected mode as Fig. 3, also can adopt the square groove connected mode, can also adopt other connected mode identical with common staight shank screw rotating tool.
Compared with prior art, the utlity model has following tangible advantage:
1, simple in structure, crank can form in the Integratively casting, and production cost is low, thereby low price, is suitable for extensively employing of family and individual.
2, be convenient to operation, high efficiency.Adopt crank, when revolving screw, the operator pins perpendicular handle on the other hand, and another hand grips also pulls horizontal shank portion, can be easily with screw-driving or unscrew.Because adopt crank structure, arm of force R can be increased to 75 millimeter by 15 millimeter of common staight shank screw rotating tool, promptly the arm of force is increased to 5 times, can save 5 times of operators' strength.
3, purposes is wide, and swing arm (2) is one group of swing arm of using that structure is different more, is suitable for pine or tight all kinds of screw, thereby high efficiency.
The utility model will be further described below in conjunction with accompanying drawing.
Fig. 1 and Fig. 2 are two kinds of structure charts of crank screw rotating tool.
Fig. 3 is the connected mode profile of crank (1) and swing arm (2).
1 is crank among the figure, the 2nd, and swing arm.
Crank screw rotating tool shown in Figure 1, its crank (1) is L-shaped.
Crank screw rotating tool shown in Figure 2, its crank (1) is " Γ " shape.
The connected mode of crank shown in Figure 3 (1) and swing arm (2) be the nut check formula be connected a kind of.
Claims (3)
1, a kind of screw rotating tool is made of swing handle and swing arm, it is characterized in that: revolve tool and be made of crank (1) and swing arm (2), crank (1) is L-shaped, " Γ " shape or " ", and crank (1) adopts the nut check formula to be connected with swing arm (2).
2, screw rotating tool according to claim 1 is characterized in that the cross section ovalize of the horizontal shank portion of crank (1), and the cross section of perpendicular shank portion is rounded.
3, screw rotating tool according to claim 1, it is characterized in that swing arm (2) be one group of structure different use swing arm more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97237959 CN2294814Y (en) | 1997-04-11 | 1997-04-11 | Crank screw precession unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97237959 CN2294814Y (en) | 1997-04-11 | 1997-04-11 | Crank screw precession unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2294814Y true CN2294814Y (en) | 1998-10-21 |
Family
ID=33948476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97237959 Expired - Fee Related CN2294814Y (en) | 1997-04-11 | 1997-04-11 | Crank screw precession unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2294814Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102950560A (en) * | 2012-11-19 | 2013-03-06 | 无锡商业职业技术学院 | L-shaped screwdriver |
-
1997
- 1997-04-11 CN CN 97237959 patent/CN2294814Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102950560A (en) * | 2012-11-19 | 2013-03-06 | 无锡商业职业技术学院 | L-shaped screwdriver |
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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 |