CN204366829U - A kind of antioverloading formula L shape screwdriver - Google Patents
A kind of antioverloading formula L shape screwdriver Download PDFInfo
- Publication number
- CN204366829U CN204366829U CN201420782243.0U CN201420782243U CN204366829U CN 204366829 U CN204366829 U CN 204366829U CN 201420782243 U CN201420782243 U CN 201420782243U CN 204366829 U CN204366829 U CN 204366829U
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- base
- fixed block
- screw
- spring
- hole
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- Expired - Fee Related
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Abstract
The utility model relates to a kind of antioverloading formula L shape screwdriver, comprise handle, fixed block, circular hole, screw hole, trip bolt, spring, base, annular groove, driver bit, pin hole, latch, connection holes, it is characterized in that: fixed block is provided with pin hole, latch is provided with in pin hole, base is provided with connection holes, base successively through after the pin hole be arranged on fixed block and the connection holes being arranged on base, is locked in fixed block by latch.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 L shape 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 L shape 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 L shape screwdriver, comprise handle, fixed block, circular hole, screw hole, trip bolt, spring, base, annular groove, driver bit, pin hole, latch, connection holes, it is characterized in that: one end of described handle is provided with fixed block, one end of handle is fixedly connected with the side of fixed block, circular hole is provided with in fixed block, fixed block 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 fixed block, trip bolt is through the screw hole be arranged on fixed block and embedding is arranged in the annular groove on base outer wall, spring and base are fixed in fixed block, one end of base is fixedly connected with the top of driver bit, fixed block is provided with pin hole, latch is provided with in pin hole, base is provided with connection holes, latch is successively through after the pin hole be arranged on fixed block and the connection holes being arranged on base, base is locked in fixed block, the drift of described spring (6) is greater than the height of described driver bit (9), the drift of described spring (6) is greater than the height of described fixed block (2), the height of described fixed block (2) is greater than the height of described base (7), described handle (1), circular hole (3), base (7) is 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), the quantity of described screw hole (4) is 3, the quantity of trip bolt (5) is 3, 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).
The length of described latch is greater than the length of described pin hole.
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-fixed block, 3-circular hole, 4-screw hole, 5-trip bolt, 6-spring, 7-base, 8-annular groove, 9-driver bit, 10-pin hole, 11-latch, 12-connection holes.
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 L shape screwdriver, comprise handle 1, fixed block 2, circular hole 3, screw hole 4, trip bolt 5, spring 6, base 7, annular groove 8, driver bit 9, pin hole 10, latch 11, connection holes 12, it is characterized in that: one end of described handle 1 is provided with fixed block 2, one end of handle 1 is fixedly connected with the side of fixed block 2, circular hole 3 is provided with in fixed block 2, fixed block 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 fixed block 2, trip bolt 5 is through the screw hole 4 be arranged on fixed block 2 and embedding is arranged in the annular groove 8 on base 7 outer wall, spring 6 and base 7 are fixed in fixed block 2, one end of base 7 is fixedly connected with the top of driver bit 9, fixed block 2 is provided with pin hole 10, latch 11 is provided with in pin hole 10, base 7 is provided with connection holes 12, latch 11 is successively through after the pin hole 10 be arranged on fixed block 2 and the connection holes 12 being arranged on base 7, base 7 is locked in fixed block 2, the drift of described spring 6 is greater than the height of described driver bit 9, the drift of described spring 6 is greater than the height of described fixed block 2, the height of described fixed block 2 is greater than the height of described base 7, described handle 1, circular hole 3, base 7 is 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, the quantity of described screw hole 4 is 3, the quantity of trip bolt 5 is 3, 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.
The length of described latch 11 is greater than the length of described pin hole 10.
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 fixed block 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 L shape screwdriver, comprise handle (1), fixed block (2), circular hole (3), screw hole (4), trip bolt (5), spring (6), base (7), annular groove (8), driver bit (9), pin hole (10), latch (11), connection holes (12), it is characterized in that: one end of described handle (1) is provided with fixed block (2), one end of handle (1) is fixedly connected with the side of fixed block (2), circular hole (3) is provided with in fixed block (2), fixed block (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 fixed block (2), trip bolt (5) is through the screw hole (4) be arranged on fixed block (2) and embedding is arranged in the annular groove (8) on base (7) outer wall, spring (6) and base (7) are fixed in fixed block (2), one end of base (7) is fixedly connected with the top of driver bit (9), fixed block (2) is provided with pin hole (10), latch (11) is provided with in pin hole (10), base (7) is provided with connection holes (12), latch (11) is successively through after the pin hole (10) be arranged on fixed block (2) and the connection holes (12) being arranged on base (7), base (7) is locked in fixed block (2), the drift of described spring (6) is greater than the height of described driver bit (9), the drift of described spring (6) is greater than the height of described fixed block (2), the height of described fixed block (2) is greater than the height of described base (7), described handle (1), circular hole (3), base (7) is 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), the quantity of described screw hole (4) is 3, the quantity of trip bolt (5) is 3, 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).
2. a kind of antioverloading formula L shape screwdriver according to claim 1, is characterized in that: the length of described latch (11) is greater than the length of described pin hole (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420782243.0U CN204366829U (en) | 2014-12-13 | 2014-12-13 | A kind of antioverloading formula L shape screwdriver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420782243.0U CN204366829U (en) | 2014-12-13 | 2014-12-13 | A kind of antioverloading formula L shape screwdriver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204366829U true CN204366829U (en) | 2015-06-03 |
Family
ID=53323077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420782243.0U Expired - Fee Related CN204366829U (en) | 2014-12-13 | 2014-12-13 | A kind of antioverloading formula L shape screwdriver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204366829U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112247895A (en) * | 2020-11-06 | 2021-01-22 | 福建省大立通用机电制造有限公司 | Special tamper-proof structure |
-
2014
- 2014-12-13 CN CN201420782243.0U patent/CN204366829U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112247895A (en) * | 2020-11-06 | 2021-01-22 | 福建省大立通用机电制造有限公司 | Special tamper-proof structure |
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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: 20150603 Termination date: 20151213 |
|
| EXPY | Termination of patent right or utility model |