CN203390828U - Screw driver - Google Patents
Screw driver Download PDFInfo
- Publication number
- CN203390828U CN203390828U CN201320296438.XU CN201320296438U CN203390828U CN 203390828 U CN203390828 U CN 203390828U CN 201320296438 U CN201320296438 U CN 201320296438U CN 203390828 U CN203390828 U CN 203390828U
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- China
- Prior art keywords
- ratchet
- central shaft
- tooth
- gear
- screwdriver
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- Withdrawn - After Issue
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Abstract
The utility model discloses a screw driver. The screw driver comprises a driver bar, a handle and a speedup device; the speedup device comprises a central shaft which is connected with the driver bar and provided with teeth in a periphery region, a first element arranged in the inner part of the handle, at least one gear connected with the first element, and gear sleeves sleeved outside of the at least one gear; teeth meshing the at least one gear are arranged in a corresponding position of the inner side of one corresponding gear sleeve; and the at least one gear is arranged at the side part of the central shaft and meshes the teeth in the periphery region of the central shaft. The screw driver also comprises a lock structure, so a problem of low torsion of the screw driver is resolved.
Description
Technical field
The present invention relates to a kind of instrument of manually twisting screw, more particularly, relate to a kind of screwdriver.
Background technology
Screwdriver is to be a kind ofly used for twisting screw to force its instrument in place, comprises batch bar and handle, hand rotation handle one circle conventionally, and batch bar rotates a circle, until screw is turned to precalculated position.Such efficiency is very low.So there is on the market a kind of speedup screwdriver, turning handle one circle, batch bar can rotate a few, and the service efficiency of screwdriver can be provided like this.But the torsion of this screwdriver is not high.
Therefore, on market, need a kind of both efficiently, solved again the not screwdriver of high problem of torsion.
Summary of the invention
The object of the invention is to provide a kind of screwdriver of effective use, and it adopts speedup structure, and structural design is simple, easy to use.
Another object of the present invention is to provide a kind of effective use screwdriver, and it adopts lock construction to solve the not high problem of common efficient screwdriver torsion.
For achieving the above object, the invention provides a kind of screwdriver, comprise batch bar, handle, and speeder, what wherein said speeder comprised is connected and is provided with in periphery the central shaft of tooth portion with described batch of bar, inner the first element arranging of described handle, at least one gear being connected with the first element, with the geared sleeve being enclosed within outside described gear, on the relevant position of wherein said geared sleeve inner side, there is the tooth with the interlock of gear phase, described gear be arranged on central shaft sidepiece and with the tooth portion phase interlock of described central shaft periphery.
Screwdriver of the present invention also comprises lock construction, it comprises second element that can rotate with the first element and the trigger switch being connected with the second element, wherein the front inner wall of the second element has the tooth matching with central shaft outer peripheral teeth portion, when promoting trigger switch in primary importance, tooth in the second element front inner wall does not contact with the tooth portion of central shaft periphery, when promoting trigger switch in the second place, the tooth portion phase interlock of the tooth on the second element inwall and central shaft periphery.
Screwdriver of the present invention also comprises the ratchet device being arranged between described batch bar afterbody and described speeder, it comprises pawl base, on described pawl base, along central shaft bilateral symmetry, two the first swingable ratchets and the second ratchet are set, with for controlling the element of described the first and second detent positions states, on described element, there are two and be separately positioned on the first ratchet and the second ratchet outside, and be respectively used to promote the first stopper and second stopper of described the first ratchet and the second ratchet, the first and second ratchets and the first and second stopper outsides are provided with ratchet cover, its inwall has the interior ratchet of annular distribution, described ratchet cover can phase interlock with the tooth on the first ratchet and the second ratchet.
Below with reference to accompanying drawing, the technique effect of design of the present invention, concrete structure and generation is described further, to understand fully object of the present invention, feature and effect.
Accompanying drawing explanation
Fig. 1 is the top view of a preferred embodiment of the present invention.
Fig. 2 is the three-dimensional explosive view of a preferred embodiment of the present invention.
Fig. 3 is the transverse sectional view of a preferred embodiment of the present invention.
Fig. 4 is the three-dimensional explosive view of the speeder of a preferred embodiment of the present invention.
Fig. 5 is the three-dimensional explosive view at another visual angle of the speeder of a preferred embodiment of the present invention.
Fig. 6 is the side-looking explosive view of the speeder of a preferred embodiment of the present invention.
Fig. 7 is that on the ratchet device in Fig. 3, B-B is to cutaway view, and wherein positioner mediates.
Fig. 8 is that on the ratchet device in Fig. 3, C-C is to cutaway view, and wherein positioner mediates.
Fig. 9 is that on the ratchet device in Fig. 3, B-B is to cutaway view, and wherein positioner turns clockwise.
Figure 10 is that on the ratchet device in Fig. 3, C-C is to cutaway view, and wherein positioner turns clockwise.
Figure 11 is that on the ratchet device in Fig. 3, B-B is to cutaway view, and wherein positioner is rotated counterclockwise.
Figure 12 is that on the ratchet device in Fig. 3, C-C is to cutaway view, and wherein positioner is rotated counterclockwise.
The specific embodiment
As illustrated in fig. 1 and 2, screwdriver of the present invention comprises batch bar 1, handle 2, and speeder 3.Handle 2 is connected with speeder 3, and handle rotates and rotates relative to speeder, and speeder 3 is fixedly connected with batch bar 2, and speeder can link and criticize bar rotation, reaches the object of use.
As Fig. 4, shown in 5 and 6, speeder 3 comprises the central shaft 31 that is connected and is provided with in periphery tooth portion 311 with batch bar, inner the first element 32 arranging of handle, with at least one gear 33 being connected with the first element, gear 33 is arranged on the sidepiece of central shaft and matches with the tooth portion 311 of central shaft 31 peripheries, interlock mutually.Speeder also comprises the geared sleeve 34 being enclosed within outside gear 33, wherein on the relevant position of geared sleeve 34 inner sides, has the tooth 341 with gear 33 phase interlocks.
Particularly, described central shaft is arranged on the center of screwdriver, and screwdriver of the present invention has three identical gears 33, is arranged on equidistantly respectively the periphery of central shaft 31, and with the tooth portion 311 phase interlocks of its periphery.Three gears all with the internal tooth interlock of geared sleeve.
In use, criticize bar and the target screw interlock that needs rotation, relatively fixing, when handle 2 and geared sleeve 34 are round about in relative rotation time, handle 2 drives the first element 32 to rotate, and the first element 32 driven gears 33 rotate, and the central shaft 31 that gear 33 drives periphery to be provided with tooth portion 311 rotates, thereby drive batch bar 1 to rotate, reach the object of accelerating use.
In order to solve the not high problem of torsion after speedup, the present invention has also designed a lock construction, it comprises second element 35 that can rotate with the first element and the trigger switch 36 being connected with the second element 35, and wherein the front inner wall of the second element has the tooth 351 matching with central shaft 31 outer peripheral teeth portions 311.
When promoting trigger switch 36 backward, when being positioned at primary importance, the tooth 351 in the second element front inner wall does not contact with the tooth portion of central shaft 31 peripheries, so speeder proper motion as previously mentioned.
When promoting trigger switch 36 forward, when being positioned at the second place, before inner sleeve is pushed to, the tooth portion phase interlock of the tooth 351 in inner sleeve front inner wall and central shaft 31 peripheries.So in use, the torsion that handle applies can be directly delivered to batch bar, can increase torsion.
Particularly, central shaft 31 longitudinal section is roughly T-shaped.The first end of batch bar and central shaft, has outward extending part, i.e. the head of T-shaped body, and its outward extending part is provided with at least one connecting portion, can be screw 313, is fixedly connected with the afterbody of batch bar, so criticize bar, can rotate with the rotation of central shaft.Also can make other connected mode herein, or batch bar also can be integrated with central shaft.
Each gear 33 has an axle extending back 331, joins with the first element 32.The first element 32 is an axle sleeve in the present embodiment, and the front portion of axle sleeve has the container cavity 321 that holds gear 33 axles 331, can rotate together by driven gear 33 like this when axle sleeve rotates.
The second element 35 of its lock construction is for being arranged on the first element, i.e. the inner sleeve of axle sleeve inside can relative the first element, and axle sleeve seesaws.The second element, inner sleeve is cylindrical, the first element, the columniform outside of inner sleeve is vertically arranged with projection, arranges porose 352 in projection.Trigger switch 36 has downward extension 361 and is fixedly connected with inner sleeve 35 with axle sleeve 32 through handle 2, by front and back, promotes trigger switch 36, controls inner sleeve and seesaws.
The columniform outside of inner sleeve is vertically arranged with projection, arranges porosely 352 in projection, and the downward extension of trigger switch 36 is stud bump, can stretch in hole, thereby drive inner sleeve to move forward and backward.Described the second element, in, being enclosed within on the relevant position of trigger switch is an opening 322, described trigger switch has downward extension and is fixedly connected with the hole of described the first element through the opening of described handle and described the second element, so can not affect the extension of trigger switch 36 and moving forward and backward of inner sleeve.
The present invention also has a three element 37, is arranged on the afterbody of the second element, and it has a screw thread stretching out forward, fixes, together with central shaft is vertically fixed in the second element with the internal thread of central shaft afterbody.
As shown in Fig. 1 and Fig. 7-12, screwdriver of the present invention also comprises the ratchet device 4 being arranged between batch bar afterbody and speeder, it comprises pawl base 41, on pawl base, along central shaft bilateral symmetry, two the first swingable ratchets 411 and the second ratchet 412 are set, and for controlling the element 42 of two detent positions states.The first stopper 421 and second stopper 422 on element 42 with two respectively corresponding two ratchets 411,412.Further, on described element, there are two and be separately positioned on the first ratchet and the second ratchet outside, and be respectively used to promote the first stopper and second stopper of described the first ratchet and the second ratchet.Ratchet and stopper outside are provided with ratchet cover 7.The inwall of ratchet cover 7 has the interior ratchet of annular distribution, and this ratchet cover is enclosed within on ratchet, the tooth phase interlock in it on ratchet and two ratchets 411,412.Ratchet cover outside is also provided with the positioner 8 being connected with element 42, and positioner 8 also can be connected with element 42 one.Positioner 8 is specially pivoted housing, is the outside that an annular casing is enclosed within ratchet cover.When positioner mediates, as shown in FIG. 7 and 8.
In the time of rotation positioning device 8, element 42 moves thereupon, and two stoppers 421,422 on element 42 also move thereupon.As shown in Figures 9 and 10, when clockwise rotating pivoted housing 8, first stopper 421 extruding the first ratchets 411 depart from the interior ratchet of ratchet cover, another ratchet 412 continues to be meshed with the interior ratchet of ratchet cover 7, now, counterclockwise turning handle can pass through pawl base by the moment of torsion from handle, the first ratchet with 7 engagements of ratchet cover, ratchet cover passes to batch bar, turning handle can be driven from the interior ratchet of ratchet cover and slip over by pawl base with the second ratchet of ratchet cover engagement clockwise, not to batch bar transmitting torque, make handle revolution.As shown in FIG. 11 and 12, when rotating counterclockwise pivoted housing 8, second stopper 422 extruding the second ratchets 421 depart from the interior ratchet of ratchet cover, another ratchet 411 continues to be meshed with the interior ratchet of ratchet cover 7, now, turning handle can pass through pawl base by the moment of torsion from handle clockwise, the first ratchet with 7 engagements of ratchet cover, ratchet cover passes to batch bar, counterclockwise turning handle can be driven from the ratchet of ratchet cover and slip over by pawl base with the first ratchet of ratchet cover engagement, not to batch bar transmitting torque, make handle revolution.Because pivoted housing can, in handle location last week, because no matter pivoted housing goes to the arbitrary position in figure, all remain on this position by locating.
Further, be supported with the flexible member 9 that makes these two ratchets open relying on ratchet cover between two ratchets 411,412, two stoppers 421,422 on element 42 lay respectively at the outside of corresponding ratchet.Guarantee thus ratchet and the engagement of ratchet cover.Two ratchets 411,412 are connected on pawl base by bearing pin 10a and 10b respectively.Can guarantee that thus ratchet can swing flexibly, can also guarantee that ratchet has the ability of enough transmitting torques simultaneously.
As shown in Fig. 7-12, pivoted housing, annular casing inwall has three spaced locating slot 11a, 11b, 11c, pawl base 41 is provided with location pellet 12, and this location pellet is supported and is positioned at a locating slot by flexible member 13, thereby realizes the location of pivoted housing 8 on handle, according to this structure, when pivoted housing 8 is positioned at as shown in FIG. 7 and 8 state, location pellet 12 is positioned at the locating slot 11b in pivoted housing Shang centre position, and now two ratchets are positioned at state as shown in Figure 8.When pivoted housing 8 is positioned at as shown in Figures 9 and 10 state, location pellet is positioned at the locating slot 11c of pivoted housing lower position, and now two ratchets are positioned at state as shown in figure 10.When pivoted housing 8 is positioned at as shown in Figure 11-12 state, location pellet is positioned at the locating slot 11a of pivoted housing upper side position, and now two ratchets are positioned at state as shown in figure 12.
As shown in Figure 3 and 7, pawl base has groove 14, and element 42 is positioned at groove, and pivoted housing 8 is close to firmware 15 between annular casing and element 42 and is connected (as screw).When realizing by pivoted housing drive element 42, also by element 42 being limited in groove 14, can not move axially to realize the constraint to pivoted housing thus, by securing member, forbid that pivoted housing departs from operating position.
More than describe preferred embodiment of the present invention in detail.Should be appreciated that those of ordinary skill in the art just can design according to the present invention make many modifications and variations without creative work.Therefore, all technical staff in the art, all should be in the determined protection domain by claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (17)
1. a screwdriver, comprise batch bar, handle, and speeder, wherein said speeder comprises the central shaft that is connected and is provided with in periphery tooth portion with described batch of bar, inner the first element arranging of described handle, at least one gear being connected with the first element, with the geared sleeve being enclosed within outside described gear, on the relevant position of wherein said geared sleeve inner side, there is the tooth with the interlock of gear phase, described gear be arranged on central shaft sidepiece and with the tooth portion phase interlock of described central shaft periphery.
2. screwdriver as claimed in claim 1, wherein, described gear is three identical gears, is arranged on equidistantly respectively the periphery of central shaft, and with the phase interlock of described tooth portion.
3. screwdriver as claimed in claim 1, also comprise lock construction, it comprises second element that can rotate with the first element and the trigger switch being connected with the second element, wherein the front inner wall of the second element has the tooth matching with central shaft outer peripheral teeth portion, when promoting trigger switch in primary importance, tooth in the second element front inner wall does not contact with the tooth portion of central shaft periphery, when promoting trigger switch in the second place, the tooth portion phase interlock of the tooth on the second element inwall and central shaft periphery.
4. screwdriver as claimed in claim 2, also comprise lock construction, it comprises second element that can rotate with the first element and the trigger switch being connected with the second element, wherein the front inner wall of the second element has the tooth matching with central shaft outer peripheral teeth portion, when promoting trigger switch in primary importance, tooth in the second element front inner wall does not contact with the tooth portion of central shaft periphery, when promoting trigger switch in the second place, the tooth portion phase interlock of the tooth on the second element inwall and central shaft periphery.
5. screwdriver as claimed in claim 4, wherein, the first end of described central shaft, has outward extending part, and described outward extending part is provided with at least one connecting portion, is fixedly connected with the afterbody of batch bar.
6. screwdriver as claimed in claim 5, wherein, described tooth portion is arranged on the position near central shaft epitaxy part, between described gear and the epitaxy part of described central shaft, is also provided with pad, described central shaft epitaxy part is also provided with some depressions, can hold some balls respectively.
7. screwdriver as claimed in claim 4, wherein, longitudinal width of the tooth portion of described central shaft periphery is greater than longitudinal width of gear; Described central shaft also has the second portion outside its tooth portion.
8. screwdriver as claimed in claim 4, wherein, described in each, gear has an axle extending back, and joins with described the first element; The front portion of described the first element has the container cavity of the axle that holds described gear.
9. screwdriver as claimed in claim 4, wherein, described the second element is arranged on the inside of described the first element, can seesaw by relatively described the first element, wherein said the second element is cylindrical, and columniform outside is vertically arranged with projection, arranges porose in projection.
10. screwdriver as claimed in claim 9, wherein, described the second element has opening on the relevant position of trigger switch; Described trigger switch has downward extension and is fixedly connected with the hole of described the first element through the opening of described handle and described the second element.
11. screwdrivers as claimed in claim 4, also comprise the ratchet device being arranged between described batch bar afterbody and described speeder, it comprises pawl base, on described pawl base, along central shaft bilateral symmetry, two the first swingable ratchets and the second ratchet are set, with for controlling the element of described the first and second detent positions states, on described element, there are two and be separately positioned on the first ratchet and the second ratchet outside, and be respectively used to promote the first stopper and second stopper of described the first ratchet and the second ratchet, the first and second ratchets and the first and second stopper outsides are provided with ratchet cover, its inwall has the interior ratchet of annular distribution, described interior ratchet can phase interlock with the tooth on the first ratchet and the second ratchet.
12. screwdrivers as claimed in claim 11, wherein, described ratchet cover outside is also provided with the positioner being connected with described element.
13. screwdrivers as claimed in claim 12, wherein, described positioner is the outside that annular casing is enclosed within described ratchet cover.
14. screwdrivers as claimed in claim 13, wherein, are supported with the flexible member that makes these two ratchets open relying on described ratchet cover between described the first ratchet and the second ratchet.
15. screwdrivers as claimed in claim 14, wherein, described the first ratchet and the second ratchet are connected on described pawl base by bearing pin respectively.
16. screwdrivers as claimed in claim 15, wherein, described annular casing inwall has three spaced locating slots, and described pawl base is provided with location pellet, and described location pellet can be supported and is positioned at any one locating slot by flexible member.
17. screwdrivers as claimed in claim 16, wherein, described pawl base has groove, and described element is positioned at described groove, is close to firmware and is connected between described annular casing and described element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320296438.XU CN203390828U (en) | 2013-05-27 | 2013-05-27 | Screw driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320296438.XU CN203390828U (en) | 2013-05-27 | 2013-05-27 | Screw driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203390828U true CN203390828U (en) | 2014-01-15 |
Family
ID=49902388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320296438.XU Withdrawn - After Issue CN203390828U (en) | 2013-05-27 | 2013-05-27 | Screw driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203390828U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103753465A (en) * | 2014-01-24 | 2014-04-30 | 浙江斐凌工具有限公司 | Variable-speed ratchet device for screwdriver and screwdriver |
| CN104175266A (en) * | 2013-05-27 | 2014-12-03 | 杭州巨星工具有限公司 | Screwdriver |
| WO2014190466A1 (en) * | 2013-05-27 | 2014-12-04 | 杭州巨星工具有限公司 | Screwdriver |
-
2013
- 2013-05-27 CN CN201320296438.XU patent/CN203390828U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104175266A (en) * | 2013-05-27 | 2014-12-03 | 杭州巨星工具有限公司 | Screwdriver |
| WO2014190466A1 (en) * | 2013-05-27 | 2014-12-04 | 杭州巨星工具有限公司 | Screwdriver |
| CN104175266B (en) * | 2013-05-27 | 2017-10-20 | 杭州巨星工具有限公司 | Screwdriver |
| US10022846B2 (en) | 2013-05-27 | 2018-07-17 | Hangzhou Great Star Tools Co., Ltd. | Screwdriver |
| CN103753465A (en) * | 2014-01-24 | 2014-04-30 | 浙江斐凌工具有限公司 | Variable-speed ratchet device for screwdriver and screwdriver |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140115 Effective date of abandoning: 20171020 |
|
| AV01 | Patent right actively abandoned |