CN204366842U - A kind of telescopic handle load adjustable antioverloading L shape screwdriver - Google Patents
A kind of telescopic handle load adjustable antioverloading L shape screwdriver Download PDFInfo
- Publication number
- CN204366842U CN204366842U CN201420782252.XU CN201420782252U CN204366842U CN 204366842 U CN204366842 U CN 204366842U CN 201420782252 U CN201420782252 U CN 201420782252U CN 204366842 U CN204366842 U CN 204366842U
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- China
- Prior art keywords
- base
- fixed block
- annular groove
- handle
- telescopic handle
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Abstract
The utility model relates to a kind of telescopic handle load adjustable antioverloading L shape screwdriver, comprises handle, fixed block, circular hole, screw hole, trip bolt, spring, base, first order annular groove, second level annular groove, driver bit, Telescopic handle, pin hole, latch, connection holes.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 because moment is excessive and cause screw to damage, and the size of the maximum moment of its load can be changed, so not only can reduce 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 telescopic handle load adjustable antioverloading 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 telescopic handle load adjustable antioverloading 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 telescopic handle load adjustable antioverloading L shape screwdriver, comprise handle, fixed block, circular hole, screw hole, trip bolt, spring, base, first order annular groove, second level annular groove, driver bit, Telescopic handle, 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 first order annular groove and second level annular groove, spring and base embedding are arranged on after in the circular hole in fixed block, trip bolt also embeds in the first order annular groove or second level annular groove that are arranged on base outer wall through the screw hole be arranged on fixed block, spring and base are fixed in fixed block, one end of base is fixedly connected with the top of driver bit, the outside of handle is provided with Telescopic handle, circular hole is provided with in Telescopic handle, Telescopic handle is provided with screw hole, after in handle enters and is arranged in Telescopic handle circular hole, trip bolt is through the screw hole be arranged on Telescopic handle, Telescopic handle is fixed on handle, 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 length of described Telescopic handle is greater than the length of described handle, the height of described fixed block is greater than the height of described base, the drift of described spring is greater than the height of described fixed block, described handle, circular hole, base is cylindrical structural, the width of described first order annular groove and second level 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 first order annular groove and second level 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.
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, and the size of the maximum moment of its load can be changed, so not only use cost can be reduced, 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.
Fig. 3 is the perspective view of trip bolt 5 and Telescopic handle 11 in the utility model.
In figure: 1-handle, 2-fixed block, 3-circular hole, 4-screw hole, 5-trip bolt, 6-spring, 7-base, 8-first order annular groove, 9-second level annular groove, 10-driver bit, 11-Telescopic handle, 12-pin hole, 13-latch, 14-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 Fig. 1, shown in Fig. 2 and Fig. 3, a kind of telescopic handle load adjustable antioverloading L shape screwdriver, comprise handle 1, fixed block 2, circular hole 3, screw hole 4, trip bolt 5, spring 6, base 7, first order annular groove 8, second level annular groove 9, driver bit 10, Telescopic handle 11, pin hole 12, latch 13, connection holes 14, 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 first order annular groove 8 and second level annular groove 9, spring 6 and base 7 embedding are arranged on after in the circular hole 3 in fixed block 2, trip bolt 5 also embeds in the first order annular groove 8 or second level annular groove 9 that are arranged on base 7 outer wall through the screw hole 4 be arranged on fixed block 2, 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 10, the outside of handle 1 is provided with Telescopic handle 11, circular hole 3 is provided with in Telescopic handle 11, Telescopic handle 11 is provided with screw hole 4, handle 1 enters and is arranged on after in circular hole in Telescopic handle 11 3, trip bolt 5 is through the screw hole 4 be arranged on Telescopic handle 11, Telescopic handle 11 is fixed on handle 1, fixed block 2 is provided with pin hole 12, latch 13 is provided with in pin hole 12, base 7 is provided with connection holes 14, latch 13 is successively through after the pin hole 12 be arranged on fixed block 2 and the connection holes 14 being arranged on base 7, base 7 is locked in fixed block 2, the length of described Telescopic handle 11 is greater than the length of described handle 1, the height of described fixed block 2 is greater than the height of described base 7, the drift of described spring 6 is greater than the height of described fixed block 2, described handle 1, circular hole 3, base 7 is cylindrical structural, the width of described first order annular groove 8 and second level annular groove 9 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 first order annular groove 8 and second level annular groove 9, 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 13 is greater than the length of described pin hole 12.
When needs carry out dismounting to screw and are fastening, being aimed at by driver bit 10 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.
When need to regulate its can the size of maximum moment of load time, first screw out trip bolt 5, then according to actual needs by first order annular groove 8 or second level annular groove 9 alignment screw hole 4, finally the screw rod of trip bolt 5 is embedded in first order annular groove 8 or second level annular groove 9 can change its can the size of maximum moment of load.
In time needing the length of regulating handle 1, first unscrew trip bolt 5, then regulate Telescopic handle 11 to stretch out the length of handle 1, finally screw trip bolt 5 and can lock Telescopic handle 11, thus reach the object of regulating handle 1 length.
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. a telescopic handle load adjustable antioverloading L shape screwdriver, comprise handle (1), fixed block (2), circular hole (3), screw hole (4), trip bolt (5), spring (6), base (7), first order annular groove (8), second level annular groove (9), driver bit (10), Telescopic handle (11), pin hole (12), latch (13), connection holes (14), 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 first order annular groove (8) and second level annular groove (9), 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 embed in the first order annular groove (8) that is arranged on base (7) outer wall or second level annular groove (9), 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 (10), the outside of handle (1) is provided with Telescopic handle (11), circular hole (3) is provided with in Telescopic handle (11), Telescopic handle (11) is provided with screw hole (4), after in handle (1) enters and is arranged in Telescopic handle (11) circular hole (3), trip bolt (5) is through the screw hole (4) be arranged on Telescopic handle (11), Telescopic handle (11) is fixed on handle (1), fixed block (2) is provided with pin hole (12), latch (13) is provided with in pin hole (12), base (7) is provided with connection holes (14), latch (13) is successively through after the pin hole (12) be arranged on fixed block (2) and the connection holes (14) being arranged on base (7), base (7) is locked in fixed block (2), the length of described Telescopic handle (11) is greater than the length of described handle (1), the height of described fixed block (2) is greater than the height of described base (7), the drift of described spring (6) is greater than the height of described fixed block (2), described handle (1), circular hole (3), base (7) is cylindrical structural, the width of described first order annular groove (8) and second level annular groove (9) 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 first order annular groove (8) and second level annular groove (9), 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 telescopic handle load according to claim 1 adjustable antioverloading L shape screwdriver, is characterized in that: the length of described latch (13) is greater than the length of described pin hole (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420782252.XU CN204366842U (en) | 2014-12-13 | 2014-12-13 | A kind of telescopic handle load adjustable antioverloading L shape screwdriver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420782252.XU CN204366842U (en) | 2014-12-13 | 2014-12-13 | A kind of telescopic handle load adjustable antioverloading L shape screwdriver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204366842U true CN204366842U (en) | 2015-06-03 |
Family
ID=53323090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420782252.XU Expired - Fee Related CN204366842U (en) | 2014-12-13 | 2014-12-13 | A kind of telescopic handle load adjustable antioverloading L shape screwdriver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204366842U (en) |
-
2014
- 2014-12-13 CN CN201420782252.XU patent/CN204366842U/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 | ||
| 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 |