CN204108927U - The adjustable antioverloading screwdriver of a kind of load - Google Patents
The adjustable antioverloading screwdriver of a kind of load Download PDFInfo
- Publication number
- CN204108927U CN204108927U CN201420548418.1U CN201420548418U CN204108927U CN 204108927 U CN204108927 U CN 204108927U CN 201420548418 U CN201420548418 U CN 201420548418U CN 204108927 U CN204108927 U CN 204108927U
- Authority
- CN
- China
- Prior art keywords
- annular groove
- screw
- connecting rod
- slide block
- load
- 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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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model relates to the adjustable antioverloading screwdriver of a kind of load, comprises handle, connecting rod, circular hole, screw hole, trip bolt, spring, slide block, first order annular groove, second level 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 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 the adjustable antioverloading screwdriver of a kind of load, 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 can effectively prevent moment excessive and the adjustable antioverloading screwdriver of load that is that cause screw to damage.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: the adjustable antioverloading screwdriver of a kind of load, comprise handle, connecting rod, circular hole, screw hole, trip bolt, spring, slide block, first order annular groove, second level annular groove, driver bit, it is characterized in that: one end of described connecting rod is fixedly connected with the middle part of handle is vertical, connecting rod is provided with circular hole, the lower end of connecting rod is provided with screw hole, trip bolt is provided with in screw hole, spring and slide block is provided with in circular hole, slide block is provided with first order annular groove and second level annular groove, second level annular groove is arranged on the top of first order annular groove, trip bolt embeds in first order annular groove or second level annular groove after through the screw hole being arranged on connecting rod lower end, the top of driver bit is fixedly connected with one end of slide block.
The drift of described spring is greater than the length of described driver bit.
The profile of described handle, connecting rod is cylindrical structural.
Described trip bolt embeds in first order annular groove or second level annular groove after through the screw hole being arranged on connecting rod lower end, and effect is fixed in circular hole by slide block.
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 drift of described spring is greater than the length of described connecting rod.
The length of described connecting rod is greater than the length of described driver bit.
After in described spring enters and is arranged on connecting rod circular hole, slide block also enters in the circular hole that is arranged on connecting rod, simultaneously trip bolt embeds after through the screw hole being arranged on connecting rod lower end in the first order annular groove or second level annular groove that are arranged on slide block, is fixed in connecting rod by slide block.
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.
In figure: 1-handle, 2-connecting rod, 3-circular hole, 4-screw hole, 5-trip bolt, 6-spring, 7-slide block, 8-first order annular groove, 9-second level annular groove, 10-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, the adjustable antioverloading screwdriver of a kind of load, comprise handle 1, connecting rod 2, circular hole 3, screw hole 4, trip bolt 5, spring 6, slide block 7, first order annular groove 8, second level annular groove 9, driver bit 10, it is characterized in that: one end of described connecting rod 2 is fixedly connected with the middle part of handle 1 is vertical, connecting rod 2 is provided with circular hole 3, the lower end of connecting rod 2 is provided with screw hole 4, trip bolt 5 is provided with in screw hole 4, spring 6 and slide block 7 is provided with in circular hole 3, slide block 7 is provided with first order annular groove 8 and second level annular groove 9, second level annular groove 9 is arranged on the top of first order annular groove 8, trip bolt 5 embeds in first order annular groove 8 or second level annular groove 9 after through the screw hole 4 being arranged on connecting rod 2 lower end, the top of driver bit 10 is fixedly connected with one end of slide block 7.
The drift of described spring 6 is greater than the length of described driver bit 10.
The profile of described handle 1, connecting rod 2 is cylindrical structural.
Described trip bolt 5 embeds in first order annular groove 8 or second level annular groove 9 after through the screw hole 4 being arranged on connecting rod 2 lower end, and effect is fixed in circular hole 3 by slide block 7.
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 drift of described spring 6 is greater than the length of described connecting rod 2.
The length of described connecting rod 2 is greater than the length of described driver bit 10.
Described spring 6 enters and is arranged on after in circular hole on connecting rod 23, slide block 7 also enters in the circular hole 3 that is arranged on connecting rod 2, trip bolt 5 is embedding afterwards through the screw hole 4 being arranged on connecting rod 2 lower end in the first order annular groove 8 or second level annular groove 9 be arranged on slide block 7 simultaneously, is fixed in connecting rod 2 by slide block 7.
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 slide block 7 tops, slide block 7 just can skid in the connecting rod 2 being provided with circular hole 3, 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.
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. the adjustable antioverloading screwdriver of load, comprise handle (1), connecting rod (2), circular hole (3), screw hole (4), trip bolt (5), spring (6), slide block (7), first order annular groove (8), second level annular groove (9), driver bit (10), it is characterized in that: one end of described connecting rod (2) is fixedly connected with the middle part of handle (1) is vertical, connecting rod (2) is provided with circular hole (3), the lower end of connecting rod (2) is provided with screw hole (4), trip bolt (5) is provided with in screw hole (4), spring (6) and slide block (7) is provided with in circular hole (3), slide block (7) is provided with first order annular groove (8) and second level annular groove (9), second level annular groove (9) is arranged on the top of first order annular groove (8), trip bolt (5) is embedding in first order annular groove (8) or second level annular groove (9) afterwards through the screw hole (4) being arranged on connecting rod (2) lower end, the top of driver bit (10) is fixedly connected with one end of slide block (7).
2. the adjustable antioverloading screwdriver of a kind of load according to claim 1, is characterized in that: the drift of described spring (6) is greater than the length of described driver bit (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420548418.1U CN204108927U (en) | 2014-09-15 | 2014-09-15 | The adjustable antioverloading screwdriver of a kind of load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420548418.1U CN204108927U (en) | 2014-09-15 | 2014-09-15 | The adjustable antioverloading screwdriver of a kind of load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204108927U true CN204108927U (en) | 2015-01-21 |
Family
ID=52326282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420548418.1U Expired - Fee Related CN204108927U (en) | 2014-09-15 | 2014-09-15 | The adjustable antioverloading screwdriver of a kind of load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204108927U (en) |
-
2014
- 2014-09-15 CN CN201420548418.1U patent/CN204108927U/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: 20150121 Termination date: 20150915 |
|
| EXPY | Termination of patent right or utility model |