CN204149088U - A kind of antioverloading formula screwdriver - Google Patents
A kind of antioverloading formula screwdriver Download PDFInfo
- Publication number
- CN204149088U CN204149088U CN201420612518.6U CN201420612518U CN204149088U CN 204149088 U CN204149088 U CN 204149088U CN 201420612518 U CN201420612518 U CN 201420612518U CN 204149088 U CN204149088 U CN 204149088U
- Authority
- CN
- China
- Prior art keywords
- knife bar
- base
- screw
- spring
- circular hole
- 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
Abstract
The utility model relates to a kind of antioverloading formula screwdriver, comprises handle, knife bar, circular hole, screw hole, trip bolt, spring, base, annular groove, driver bit.The utility model structure is simple, easy to use, when carrying out dismounting to screw and being fastening, when screwdriver reaches certain limit to screw applied force square, driver bit just can skid, thus can effectively prevent from, because moment is excessive and cause screw to damage, so not only reducing use cost, and the labour intensity of workmen can be reduced, be conducive to increasing work efficiency.
Description
Technical field
The utility model relates to a kind of screwdriver, and specifically a kind of antioverloading formula screwdriver, belongs to machine tool technical field.
Background technology
Often need to use screwdriver to carry out dismounting and fastening to screw in machine work.At present in the polygonal structure of producing and in life, the groove of widely used screw is mostly rule, because workmen carries out dismantling and being difficult to control moment exactly in fastening process to screw at use screwdriver, often easily exceed the maximum moment that screw can carry, the groove of screw head is caused to damage, cause screwdriver to skid, bring unnecessary trouble to machine work.
Although can measure exactly at the digital force moment screw cutter produced and use in life at present and read the moment that screw carries, due to the expensive and poor reliability of digital force moment screw cutter, cannot use in machine work on a large scale.Therefore can effectively prevent moment excessive and the screwdriver causing screw to damage in the urgent need to a kind of.
Summary of the invention
The technical problems to be solved in the utility model is: provide a kind of structure simple, easy to use, and the antioverloading formula screwdriver that can effectively prevent moment excessive and cause screw to damage.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of antioverloading formula screwdriver, comprise handle, knife bar, circular hole, screw hole, trip bolt, spring, base, annular groove, driver bit, it is characterized in that: one end of described handle is provided with knife bar, one end of handle is fixedly connected with one end of knife bar, circular hole is provided with in knife bar, knife bar is provided with screw hole, trip bolt is provided with in screw hole, spring and base is provided with in circular hole, the outer wall of base is provided with annular groove, spring and base embedding are arranged on after in the circular hole in knife bar, trip bolt is through the screw hole be arranged on knife bar and embedding is arranged in the annular groove on base outer wall, spring and base are fixed in knife bar, one end of base is fixedly connected with the top of driver bit.
The height of described knife bar is greater than the height of described base.
The height of described knife bar is greater than the drift of described spring.
The drift of described spring is greater than the height of described driver bit.
Described handle, knife bar, base are cylindrical structural.
The width of described annular groove is greater than the diameter of the screw rod of described trip bolt.
The height of described base is greater than the width of described annular groove.
Described spring is cylindrical helical spring.
The diameter of described circular hole is greater than the external diameter of described spring.
The diameter of described circular hole is greater than the external diameter of described base.
Compared with prior art, the utility model has following beneficial effect: structure is simple, easy to use, when carrying out dismounting to screw and being fastening, when screwdriver reaches certain limit to screw applied force square, driver bit just can skid, thus can effectively prevent because moment is excessive and cause screw to damage, so not only can reduce use cost, and the labour intensity of workmen can be reduced, be conducive to increasing work efficiency.
Accompanying drawing explanation
Fig. 1 is perspective view of the present utility model.
Fig. 2 is stereochemical structure exploded perspective view of the present utility model.
In figure: 1-handle, 2-knife bar, 3-circular hole, 4-screw hole, 5-trip bolt, 6-spring, 7-base, 8-annular groove, 9-driver bit.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As depicted in figs. 1 and 2, a kind of antioverloading formula screwdriver, comprise handle 1, knife bar 2, circular hole 3, screw hole 4, trip bolt 5, spring 6, base 7, annular groove 8, driver bit 9, it is characterized in that: one end of described handle 1 is provided with knife bar 2, one end of handle 1 is fixedly connected with one end of knife bar 2, circular hole 3 is provided with in knife bar 2, knife bar 2 is provided with screw hole 4, trip bolt 5 is provided with in screw hole 4, spring 6 and base 7 is provided with in circular hole 3, the outer wall of base 7 is provided with annular groove 8, spring 6 and base 7 embedding are arranged on after in the circular hole 3 in knife bar 2, trip bolt 5 is through the screw hole 4 be arranged on knife bar 2 and embedding is arranged in the annular groove 8 on base 7 outer wall, spring 6 and base 7 are fixed in knife bar 2, one end of base 7 is fixedly connected with the top of driver bit 9.
The height of described knife bar 2 is greater than the height of described base 7.
The height of described knife bar 2 is greater than the drift of described spring 6.
The drift of described spring 6 is greater than the height of described driver bit 9.
Described handle 1, knife bar 2, base 7 are cylindrical structural.
The width of described annular groove 8 is greater than the diameter of the screw rod of described trip bolt 5.
The height of described base 7 is greater than the width of described annular groove 8.
Described spring 6 is cylindrical helical spring.
The diameter of described circular hole 3 is greater than the external diameter of described spring 6.
The diameter of described circular hole 3 is greater than the external diameter of described base 7.
When needs carry out dismounting to screw and are fastening, being aimed at by driver bit 9 and embedding needs to be disassembled with in the groove of fastening screw, then turning handle 1 can carry out dismounting and fastening to screw, when moment is greater than the frictional force at spring 6 pairs of base 7 tops, base 7 just can skid in knife bar 2, now increase moment in any case and all can not carry out dismounting and fastening to screw again, thus can effectively prevent because moment is excessive and cause screw to damage.
The above is preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications are also considered as protection domain of the present utility model.
Claims (2)
1. an antioverloading formula screwdriver, comprise handle (1), knife bar (2), circular hole (3), screw hole (4), trip bolt (5), spring (6), base (7), annular groove (8), driver bit (9), it is characterized in that: one end of described handle (1) is provided with knife bar (2), one end of handle (1) is fixedly connected with one end of knife bar (2), circular hole (3) is provided with in knife bar (2), knife bar (2) is provided with screw hole (4), trip bolt (5) is provided with in screw hole (4), spring (6) and base (7) is provided with in circular hole (3), the outer wall of base (7) is provided with annular groove (8), spring (6) and base (7) embedding are arranged on after in the circular hole (3) in knife bar (2), trip bolt (5) is through the screw hole (4) be arranged on knife bar (2) and embedding is arranged in the annular groove (8) on base (7) outer wall, spring (6) and base (7) are fixed in knife bar (2), one end of base (7) is fixedly connected with the top of driver bit (9).
2. a kind of antioverloading formula screwdriver according to claim 1, is characterized in that: the height of described knife bar (2) is greater than the height of described base (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420612518.6U CN204149088U (en) | 2014-10-22 | 2014-10-22 | A kind of antioverloading formula screwdriver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420612518.6U CN204149088U (en) | 2014-10-22 | 2014-10-22 | A kind of antioverloading formula screwdriver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204149088U true CN204149088U (en) | 2015-02-11 |
Family
ID=52507240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420612518.6U Expired - Fee Related CN204149088U (en) | 2014-10-22 | 2014-10-22 | A kind of antioverloading formula screwdriver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204149088U (en) |
-
2014
- 2014-10-22 CN CN201420612518.6U patent/CN204149088U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204108915U (en) | A kind of antioverloading screwdriver | |
| CN204397755U (en) | The adjustable antioverloading screwdriver of a kind of T-shaped load of telescopic handle | |
| CN204366835U (en) | The adjustable antioverloading screwdriver of a kind of load | |
| CN204149088U (en) | A kind of antioverloading formula screwdriver | |
| CN204195604U (en) | A kind of antioverloading formula sleeve screw driver | |
| CN204149092U (en) | A kind of antioverloading L shape screwdriver | |
| CN204366834U (en) | A kind of antioverloading screwdriver | |
| CN204366844U (en) | A kind of antioverloading sleeve screw driver | |
| CN204366829U (en) | A kind of antioverloading formula L shape screwdriver | |
| CN204108916U (en) | A kind of load adjustable antioverloading formula screwdriver | |
| CN204149099U (en) | A kind of antioverloading spanner | |
| CN204108928U (en) | A kind of telescopic handle antioverloading L shape screwdriver | |
| CN204366840U (en) | A kind of load adjustable antioverloading formula sleeve screw driver | |
| CN204108914U (en) | A kind of load adjustable antioverloading L shape screwdriver | |
| CN204366832U (en) | A kind of telescopic handle formula antioverloading L shape screwdriver | |
| CN204505139U (en) | A kind of telescopic handle antioverloading screwdriver | |
| CN204366843U (en) | The adjustable antioverloading sleeve screw driver of a kind of load | |
| CN204195651U (en) | A kind of telescopic handle load adjustable antioverloading L shape screwdriver | |
| CN204604198U (en) | A kind of load adjustable antioverloading L shape screwdriver | |
| CN204108927U (en) | The adjustable antioverloading screwdriver of a kind of load | |
| CN204397756U (en) | The adjustable antioverloading multi-purpose screw driver of a kind of T-shaped load of telescopic handle | |
| CN204308837U (en) | A kind of telescopic handle antioverloading L-shape spanner | |
| CN204195603U (en) | The adjustable antioverloading spanner of a kind of load | |
| CN204366842U (en) | A kind of telescopic handle load adjustable antioverloading L shape screwdriver | |
| CN204397745U (en) | The adjustable antioverloading screwdriver of a kind of telescopic handle load |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 Termination date: 20151022 |
|
| EXPY | Termination of patent right or utility model |