CN204108915U - A kind of antioverloading screwdriver - Google Patents
A kind of antioverloading screwdriver Download PDFInfo
- Publication number
- CN204108915U CN204108915U CN201420569741.7U CN201420569741U CN204108915U CN 204108915 U CN204108915 U CN 204108915U CN 201420569741 U CN201420569741 U CN 201420569741U CN 204108915 U CN204108915 U CN 204108915U
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- CN
- China
- Prior art keywords
- screw
- connecting rod
- slide block
- driver bit
- annular groove
- 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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- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model relates to a kind of antioverloading screwdriver, comprises handle, connecting rod, circular hole, screw hole, trip bolt, spring, slide block, 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 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 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 screwdriver, comprise handle, connecting rod, circular hole, screw hole, trip bolt, spring, slide block, 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, annular groove on slide block, trip bolt embeds after through the screw hole being arranged on connecting rod lower end in the annular groove that is arranged on slide block, 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 width of described annular groove is greater than the diameter of the screw rod of described trip bolt.
The profile of described handle, connecting rod is cylindrical structural.
Described trip bolt embeds after through the screw hole being arranged on connecting rod lower end in the annular groove that is arranged on slide block, and effect is fixed in circular hole by slide block.
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, and trip bolt embeds after through the screw hole being arranged on connecting rod lower end in the annular groove that is arranged on slide block simultaneously, 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, 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-connecting rod, 3-circular hole, 4-screw hole, 5-trip bolt, 6-spring, 7-slide block, 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 screwdriver, comprise handle 1, connecting rod 2, circular hole 3, screw hole 4, trip bolt 5, spring 6, slide block 7, annular groove 8, driver bit 9, 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, annular groove 8 on slide block 7, trip bolt 5 embeds after through the screw hole 4 being arranged on connecting rod 2 lower end in the annular groove 8 that is arranged on slide block 7, the top of driver bit 9 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 9.
The width of described annular groove 8 is greater than the diameter of the screw rod of described trip bolt 5.
The profile of described handle 1, connecting rod 2 is cylindrical structural.
Described trip bolt 5 embeds after through the screw hole 4 being arranged on connecting rod 2 lower end in the annular groove 8 that is arranged on slide block 7, and effect is fixed in circular hole 3 by slide block 7.
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 9.
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 being arranged in the annular groove 8 on slide block 7 through the rear embedding of the screw hole 4 being arranged on connecting rod 2 lower end 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 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 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.
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 screwdriver, comprise handle (1), connecting rod (2), circular hole (3), screw hole (4), trip bolt (5), spring (6), slide block (7), annular groove (8), driver bit (9), 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), the upper annular groove (8) of slide block (7), trip bolt (5) is embedding in the annular groove (8) be arranged on slide block (7) afterwards through the screw hole (4) being arranged on connecting rod (2) lower end, the top of driver bit (9) is fixedly connected with one end of slide block (7).
2. a kind of antioverloading screwdriver according to claim 1, is characterized in that: the drift of described spring (6) is greater than the length of described driver bit (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420569741.7U CN204108915U (en) | 2014-09-23 | 2014-09-23 | A kind of antioverloading screwdriver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420569741.7U CN204108915U (en) | 2014-09-23 | 2014-09-23 | A kind of antioverloading screwdriver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204108915U true CN204108915U (en) | 2015-01-21 |
Family
ID=52326270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420569741.7U Expired - Fee Related CN204108915U (en) | 2014-09-23 | 2014-09-23 | A kind of antioverloading screwdriver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204108915U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644264A (en) * | 2018-08-07 | 2018-10-12 | 中国重汽集团济南动力有限公司 | A kind of manual adjusting device of air-pressure disc brake |
-
2014
- 2014-09-23 CN CN201420569741.7U patent/CN204108915U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644264A (en) * | 2018-08-07 | 2018-10-12 | 中国重汽集团济南动力有限公司 | A kind of manual adjusting device of air-pressure disc brake |
| CN108644264B (en) * | 2018-08-07 | 2023-07-25 | 中国重汽集团济南动力有限公司 | A manual adjustment device for an air disc brake |
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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: 20150923 |
|
| EXPY | Termination of patent right or utility model |