CN204308857U - The T-shaped antioverloading screwdriver of a kind of folding type - Google Patents
The T-shaped antioverloading screwdriver of a kind of folding type Download PDFInfo
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- CN204308857U CN204308857U CN201420697574.4U CN201420697574U CN204308857U CN 204308857 U CN204308857 U CN 204308857U CN 201420697574 U CN201420697574 U CN 201420697574U CN 204308857 U CN204308857 U CN 204308857U
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Abstract
The utility model relates to the T-shaped antioverloading screwdriver of a kind of folding type, comprises handle, connecting rod, spring, fixed block, circular hole, screw hole, trip bolt, base, annular groove, driver bit, check lock lever, through hole, bolt hole, set bolt, pin hole, connection holes, latch.The utility model structure is simple, easy to use, can tighten the screw being in the narrow location such as corner and unscrew, and can prevent the excessive screw that causes of moment from damaging, be conducive to improving the operating efficiency of tightening and unscrewing the screw being in the narrow location such as corner.
Description
Technical field
The utility model relates to a kind of screwdriver, and specifically the T-shaped antioverloading screwdriver of a kind of folding type, belongs to machine tool technical field.
Background technology
Screwdriver is that a kind of being used for twists screw with the instrument forcing it in place, usually a thin sphenocephaly is had, in the line of rabbet joint that can insert screw cap or recess, screwdriver is generally made up of handle and the first-class multiple component of screwdriver, is specially adapted to tighten and unscrew the screw of the very narrow or very depths of caving in, residing space.
Often need to use screwdriver tighten screw and unscrew in machine work.Because the structure of current widely used screwdriver in production and life is all generally fixing, certain operating radius is needed when the existing screwdriver of use to be tightened the screw being in the narrow location such as corner and unscrewed, cause normally using screwdriver tighten the screw being in the narrow location such as corner and unscrew, and easily cause nut to damage, therefore, in the urgent need to a kind of screwdriver that can tighten the screw being in the narrow location such as corner and unscrew.
Summary of the invention
The technical problems to be solved in the utility model is: provide a kind of structure simple, easy to use, the T-shaped antioverloading screwdriver of folding type that can tighten the screw being in the narrow location such as corner and unscrew.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: the T-shaped antioverloading screwdriver of a kind of folding type, comprises handle, connecting rod, spring, fixed block, circular hole, screw hole, trip bolt, base, annular groove, driver bit, check lock lever, through hole, bolt hole, set bolt, pin hole, connection holes, latch, it is characterized in that: one end of described connecting rod is fixedly connected with the middle part of handle is vertical, the other end of connecting rod is provided with spring, one end of spring is fixedly connected with one end of connecting rod, the other end of spring is fixedly connected with the top of fixed block, circular hole is provided with in fixed block, base is provided with in circular hole, the outer wall of base is provided with annular groove, fixed block is provided with screw hole, trip bolt is provided with in screw hole, spring is provided with in fixed block, after one end of base embeds the circular hole be arranged in fixed block, the screw rod of trip bolt is through the screw hole be arranged on fixed block and embedding is arranged in the annular groove on base outer wall, base is fixed in fixed block, connecting rod is provided with check lock lever, through hole is provided with in check lock lever, check lock lever is provided with bolt hole, set bolt is provided with in bolt hole, after in one end of connecting rod enters and is arranged in check lock lever through hole, set bolt is through the bolt hole be arranged on check lock lever, check lock lever is fixed on the outside of connecting rod, one end of base is fixedly connected with the top of driver bit, fixed block is provided with pin hole, base is provided with connection holes, latch is provided with in pin hole, 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 diameter of described pin hole is greater than the diameter of described latch.
The length of described check lock lever is greater than the height of described base.
The height of described fixed block is greater than the height of described base.
The height of described base is greater than the width of described annular groove.
The width of described annular groove is greater than the diameter of the screw rod of described trip bolt.
The length of described connecting rod is greater than the drift of described spring.
The length of described connecting rod is greater than the height of described fixed block.
The drift of described spring is greater than the height of described base.
Described spring is cylindrical helical spring.
The diameter of described connecting rod is greater than the external diameter of described spring.
The diameter of described fixed block is greater than the external diameter of described spring.
The surface of described handle, connecting rod, spring, fixed block, trip bolt, base, driver bit, check lock lever, set bolt is through the concentrated sulfuric acid or red fuming nitric acid (RFNA) Passivation Treatment at normal temperatures, object improves the resistance to corrosion of screwdriver, to adapt to the severe working environment of various complexity.
Compared with prior art, the utility model has following beneficial effect: structure is simple, easy to use, can tighten the screw being in the narrow location such as corner and unscrew, and can prevent the excessive screw that causes of moment from damaging, be conducive to improving the operating efficiency of tightening and unscrewing the screw being in the narrow location such as corner.
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 fixed block 4 and trip bolt 7 in the utility model.
Fig. 4 is the perspective view of base 8 and driver bit 10 in the utility model.
Fig. 5 is the perspective view of check lock lever 11 and set bolt 14 in the utility model.
In figure: 1-handle, 2-connecting rod, 3-spring, 4-fixed block, 5-circular hole, 6-screw hole, 7-trip bolt, 8-base, 9-annular groove, 10-driver bit, 11-check lock lever, 12-through hole, 13-bolt hole, 14-set bolt, 15-pin hole, 16-connection holes, 17-latch.
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, Fig. 2, Fig. 3, shown in Fig. 4 and Fig. 5, the T-shaped antioverloading screwdriver of a kind of folding type, comprises handle 1, connecting rod 2, spring 3, fixed block 4, circular hole 5, screw hole 6, trip bolt 7, base 8, annular groove 9, driver bit 10, check lock lever 11, through hole 12, bolt hole 13, set bolt 14, pin hole 15, connection holes 16, latch 17, it is characterized in that: one end of described connecting rod 2 is fixedly connected with the middle part of handle 1 is vertical, the other end of connecting rod 2 is provided with spring 3, one end of spring 3 is fixedly connected with one end of connecting rod 2, the other end of spring 3 is fixedly connected with the top of fixed block 4, circular hole 5 is provided with in fixed block 4, base 8 is provided with in circular hole 5, the outer wall of base 8 is provided with annular groove 9, fixed block 4 is provided with screw hole 6, trip bolt 7 is provided with in screw hole 6, spring 3 is provided with in fixed block 4, after one end of base 8 embeds the circular hole 5 be arranged in fixed block 4, the screw rod of trip bolt 7 is through the screw hole 6 be arranged on fixed block 4 and embedding is arranged in the annular groove 9 on base 8 outer wall, base 8 is fixed in fixed block 4, connecting rod 2 is provided with check lock lever 11, through hole 12 is provided with in check lock lever 11, check lock lever 11 is provided with bolt hole 13, set bolt 14 is provided with in bolt hole 13, one end of connecting rod 2 enters and is arranged on after in through hole in check lock lever 11 12, set bolt 14 is through the bolt hole 13 be arranged on check lock lever 11, check lock lever 11 is fixed on the outside of connecting rod 2, one end of base 8 is fixedly connected with the top of driver bit 10, fixed block 4 is provided with pin hole 15, base 8 is provided with connection holes 16, latch 17 is provided with in pin hole 15, latch 17 is successively through after the pin hole 15 be arranged on fixed block 4 and the connection holes 16 being arranged on base 8, base 8 is locked in fixed block 4.
The diameter of described pin hole 15 is greater than the diameter of described latch 17.
The length of described check lock lever 11 is greater than the height of described base 8.
The height of described fixed block 4 is greater than the height of described base 8.
The height of described base 8 is greater than the width of described annular groove 9.
The width of described annular groove 9 is greater than the diameter of the screw rod of described trip bolt 7.
The length of described connecting rod 2 is greater than the drift of described spring 3.
The length of described connecting rod 2 is greater than the height of described fixed block 4.
The drift of described spring 3 is greater than the height of described base 8.
Described spring 3 is cylindrical helical spring.
The diameter of described connecting rod 2 is greater than the external diameter of described spring 3.
The diameter of described fixed block 4 is greater than the external diameter of described spring 3.
The surface of described handle 1, connecting rod 2, spring 3, fixed block 4, trip bolt 7, base 8, driver bit 10, check lock lever 11, set bolt 14 is through the concentrated sulfuric acid or red fuming nitric acid (RFNA) Passivation Treatment at normal temperatures, object improves the resistance to corrosion of screwdriver, to adapt to the severe working environment of various complexity.
As shown in Figure 1, when needing tighten the screw being in the narrow location such as corner and unscrew, first unscrew set bolt 14, then check lock lever 11 is stretched into along connecting rod 2, the bolt 14 that is simultaneously tightened gets final product fixing and locking bar 11, then driver bit 10 is embedded in the groove of screw that needs to be tightened and to unscrew, simultaneously to handle 1 apply lateral pressure by spring 3 bending and turning handle 1 can tighten screw and unscrew.
When not needing tighten the screw being in the narrow location such as corner and unscrew, first unscrew set bolt 14, then check lock lever 11 is stretched out along connecting rod 2 and the top of fixed block 4 is inserted in check lock lever 11, the bolt 14 that is simultaneously tightened gets final product fixing and locking bar 11, now applying lateral pressure to handle 1 just can not spring 3 bending, and finally being embedded by driver bit 10 needs in the groove of the screw being tightened and unscrewing and turning handle 1 can be tightened screw and unscrew.
When moment is greater than the frictional force at spring 3 pairs of base 8 tops, base 8 just can skid in fixed block 4, now increases moment in any case and all can not tighten screw and unscrew, thus can effectively prevent because moment is excessive and cause screw to damage.
When base 8 is locked in fixed block 4 by needs, latch 17 successively base 8 can be locked in fixed block 4 through the pin hole 15 be arranged on fixed block 4 and the connection holes 16 be arranged on base 8.
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 T-shaped antioverloading screwdriver of folding type, comprise handle (1), connecting rod (2), spring (3), fixed block (4), circular hole (5), screw hole (6), trip bolt (7), base (8), annular groove (9), driver bit (10), check lock lever (11), through hole (12), bolt hole (13), set bolt (14), pin hole (15), connection holes (16), latch (17), it is characterized in that: one end of described connecting rod (2) is fixedly connected with the middle part of handle (1) is vertical, the other end of connecting rod (2) is provided with spring (3), one end of spring (3) is fixedly connected with one end of connecting rod (2), the other end of spring (3) is fixedly connected with the top of fixed block (4), circular hole (5) is provided with in fixed block (4), base (8) is provided with in circular hole (5), the outer wall of base (8) is provided with annular groove (9), fixed block (4) is provided with screw hole (6), trip bolt (7) is provided with in screw hole (6), spring (3) is provided with in fixed block (4), after one end of base (8) embeds the circular hole (5) be arranged in fixed block (4), the screw rod of trip bolt (7) is through the screw hole (6) be arranged on fixed block (4) and embedding is arranged in the annular groove (9) on base (8) outer wall, base (8) is fixed in fixed block (4), connecting rod (2) is provided with check lock lever (11), through hole (12) is provided with in check lock lever (11), check lock lever (11) is provided with bolt hole (13), set bolt (14) is provided with in bolt hole (13), after in one end of connecting rod (2) enters and is arranged in check lock lever (11) through hole (12), set bolt (14) is through the bolt hole (13) be arranged on check lock lever (11), check lock lever (11) is fixed on the outside of connecting rod (2), one end of base (8) is fixedly connected with the top of driver bit (10), fixed block (4) is provided with pin hole (15), base (8) is provided with connection holes (16), latch (17) is provided with in pin hole (15), latch (17) is successively through after the pin hole (15) be arranged on fixed block (4) and the connection holes (16) being arranged on base (8), base (8) is locked in fixed block (4).
2. the T-shaped antioverloading screwdriver of a kind of folding type according to claim 1, is characterized in that: the diameter of described pin hole (15) is greater than the diameter of described latch (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420697574.4U CN204308857U (en) | 2014-11-20 | 2014-11-20 | The T-shaped antioverloading screwdriver of a kind of folding type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420697574.4U CN204308857U (en) | 2014-11-20 | 2014-11-20 | The T-shaped antioverloading screwdriver of a kind of folding type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204308857U true CN204308857U (en) | 2015-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420697574.4U Expired - Fee Related CN204308857U (en) | 2014-11-20 | 2014-11-20 | The T-shaped antioverloading screwdriver of a kind of folding type |
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| Country | Link |
|---|---|
| CN (1) | CN204308857U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111735932A (en) * | 2020-06-03 | 2020-10-02 | 西南民族大学 | Land detection device based on agricultural development |
-
2014
- 2014-11-20 CN CN201420697574.4U patent/CN204308857U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111735932A (en) * | 2020-06-03 | 2020-10-02 | 西南民族大学 | Land detection device based on agricultural development |
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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: 20150506 Termination date: 20151120 |
|
| EXPY | Termination of patent right or utility model |