CN108789255A - Hand-held tool ratchet accelerator - Google Patents
Hand-held tool ratchet accelerator Download PDFInfo
- Publication number
- CN108789255A CN108789255A CN201811052702.9A CN201811052702A CN108789255A CN 108789255 A CN108789255 A CN 108789255A CN 201811052702 A CN201811052702 A CN 201811052702A CN 108789255 A CN108789255 A CN 108789255A
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- CN
- China
- Prior art keywords
- gear
- ratchet
- spring
- packed
- change
- 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.)
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Links
- 230000001105 regulatory effect Effects 0.000 claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 21
- 239000010959 steel Substances 0.000 claims abstract description 21
- 230000037431 insertion Effects 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B15/00—Screwdrivers
- B25B15/02—Screwdrivers operated by rotating the handle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/16—Handles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses hand-held tool ratchet accelerators,Including gear stock,Clamp spring,Gear interior bar,Ratchet sleeve,Switch button,Spring one,Gear fixed cover,Locating rod,Change gear,Gear fixes lower seat,Shift retainer,Position regulating switch,Steel ball,Ratchet fluted disc,Adjusting ring,Steel ball two,Spring two,Ratchet tailstock,Spring three,Ratchet cross-arm,Clamp spring two,After whole assembly,When conventional application,The hook tooth of shift retainer and ratchet fluted disc is closed,Handle drives one to one synchronous rotary of ratchet tailstock band moving gear stock,When needing quickly to rotate,Pull switch button pushes positioning regulating switch that shift retainer and ratchet fluted disc are disengaged,External tooth drives the rotation of change gear small-diameter gear,The large diameter gear of change gear drives external tooth to be rotated by gear ratio enlargement ratio,Synchronous drive gear stock,The ratchet accelerator of the present invention,Rotary speed can be amplified by the gear multiplying power of change gear and gear interior bar,Greatly improve service efficiency.
Description
Technical field
The present invention relates to a kind of hand-held tool class technical fields, especially hand-held tool ratchet accelerator.
Background technology
The hand-held tool of conventional rotary screw is usually 1:1 angle drive, when the turn of the screw, hand-held tool rotation is turned around, and screw is also same
Step rotation is turned around, and screw in practical application, often will appear following shape according to one screw pitch of screw pitch axial displacement of screw thread
Condition：Such as house ornamentation electric switch, fixed switch cover plate needs to be screwed in wall in the screw hole of fixed switch frame with two long screws,
And the insertion fitting depth size of switch frame is typically all that gross estimates are estimated when because of house ornamentation, it is most of all do not have it is stringent according to actually opening
Model and fixed screw length are closed to determine the depth, meanwhile, wide adaptability when in order to install, fixed screw is substantially long spiral shell
Silk needs that long screw is taken a long time to be screwed into after switch cover plate could be fixed on switch frame by position to install when switchboard is installed
In place, when conventional hand-held tool the turn of the screw, hand-held tool rotation is turned around, and screw, which just revolves, to turn around, and moves axially leading according to screw thread
The entrance of journey size or out corresponding size, if screw length is 50mm, lead of screw thread 1mm, that just needs 50 circle of rotation,
And so on, similar hand tool and pattern leverage installation effectiveness and elapsed time.
Invention content
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, a kind of hand-held tool ratchet accelerator is provided, is wrapped
Include gear stock, clamp spring, gear interior bar, ratchet sleeve, switch button, spring one, gear fixed cover, locating rod, change gear,
Gear fixes lower seat, shift retainer, positioning regulating switch, steel ball, ratchet fluted disc, adjusting ring, steel ball two, spring two, ratchet
Tailstock, spring three, ratchet cross-arm, clamp spring two, integrally after assembly, routinely in application, the ratchet of shift retainer and ratchet fluted disc
Tooth is closed, and handle drives one to one synchronous rotary of ratchet tailstock band moving gear stock, when needing quickly to rotate, pull switch button
Push positioning regulating switch that shift retainer and ratchet fluted disc are disengaged, external tooth drives the rotation of change gear small-diameter gear, speed change
The large diameter gear of gear drives external tooth to be rotated by gear ratio enlargement ratio, and synchronous drive gear stock, ratchet of the invention adds
Speed variator, the gear multiplying power that can press change gear and gear interior bar amplify rotary speed, greatly improve service efficiency.
In order to achieve the above objectives, the present invention provides a kind of hand-held tool ratchet accelerator, including gear stock, clamp spring, tooth
It takes turns interior bar, ratchet sleeve, switch button, spring one, gear fixed cover, locating rod, change gear, gear and fixes lower seat, speed change
Locator, positioning regulating switch, steel ball, ratchet fluted disc, adjusting ring, steel ball two, spring two, ratchet tailstock, spring three, ratchet are horizontal
Load, clamp spring two, the gear stock are packed into the clamp spring for clamp spring being packed into after connection gear stock in the aperture of the ratchet sleeve of hat shape
In slot, the gear interior bar is packed into the external tooth on head in ratchet sleeve macropore and is connect with the interior tooth engagement of gear stock, the gear
Fixed cover front end is packed into after uniformly installing several springs one in the macropore of ratchet sleeve, and respectively connection is fixed in the hole of three change gears
Position bar, one end of locating rod are connect with gear fixed cover, and the other end and the gear of locating rod are fixed lower seat and connect, speed change positioning
The component that device is fixed with gear after the 1 socket joint type installation of lower seat is packed into ratchet sleeve, and left side is evenly distributed with the speed change positioning of hook tooth one
Device left side is evenly distributed with several oblique notches, and positioning regulating switch is fixed after lower seat is connect with gear and is packed into ratchet sleeve, and positioning is adjusted
Switch right side is evenly distributed with several triangle jacking blocks, and the position on one of triangle jacking block side, which is set, stirs slot, and the switch button is packed into
After the square hole of ratchet sleeve, stirring in slot for the fluctuation block insertion positioning regulating switch of switch button positions the back of the body of regulating switch
Face is evenly distributed with several steel balls, and the ratchet fluted disc is engaged mounted in the back side of positioning regulating switch, external tooth with change gear, steel ball insertion
In hook tooth, the adjusting ring and ratchet fluted disc nested connection, after the ratchet tailstock is packed into adjusting ring endoporus, clamp spring two fills
Enter in the jump-ring slot two of gear interior bar above-mentioned each component axial restraint.
Further setting, the ratchet tailstock are packed into the hole being set up in parallel of step upper end two of adjusting ring and set bullet respectively
Spring three, three upper end of the spring set ratchet cross-arm and cover, and spring two, the spring two are packed into the hole of the step lower end of adjusting ring
Top set steel ball two, ratchet tailstock after overall package is packed into the hole of adjusting ring.
The beneficial effects of the invention are as follows：The ratchet accelerator of the present invention can press the gear of change gear and gear interior bar
Multiplying power amplifies rotary speed, greatly improves service efficiency.
Description of the drawings
Fig. 1 is the schematic diagram of the present invention；
Fig. 2 is the exploded view of Fig. 1；
Fig. 3 is the schematic diagram of change gear in Fig. 1；
Fig. 4 is the schematic diagram of ratchet sleeve in Fig. 1.
In figure：Gear stock 1, clamp spring 2, gear interior bar 3, external tooth 301, jump-ring slot 2 302, ratchet sleeve 4, switch button 5,
Spring 1, gear fixed cover 7, locating rod 8, change gear 9, gear fix lower seat 10, shift retainer 11, oblique notch
1101, hook tooth 1, positioning regulating switch 12, triangle jacking block 1201, stir slot 1202, be steel ball 13, ratchet fluted disc 14, outer
Tooth 1401, hook tooth 1402, adjusting ring 15, steel ball 2 16, spring 2 17, ratchet tailstock 18, spring 3 19, ratchet cross-arm 20,
Clamp spring 2 21.
Specific implementation mode
As shown in Figure 1 to 4：The technical solutions of the present invention will be further described, and hand-held tool ratchet accelerates dress
It sets, including gear stock 1, clamp spring 2, gear interior bar 3, ratchet sleeve 4, switch button 5, spring 1, gear fixed cover 7, positioning
Bar 8, change gear 9, gear are fixed lower seat 10, shift retainer 11, positioning regulating switch 12, steel ball 13, ratchet fluted disc 14, are adjusted
Pitch circle 15, steel ball 2 16, spring 2 17, ratchet tailstock 18, spring 3 19, ratchet cross-arm 20, clamp spring 2 21, the gear stock
1 is packed into the aperture of the ratchet sleeve 4 of hat shape in the jump-ring slot after connection the loading gear of clamp spring 2 stock 1, the gear interior bar 3
It is packed into the external tooth 301 on head in 4 macropore of ratchet sleeve to connect with the interior tooth engagement of gear stock 1,7 front end of gear fixed cover
It is packed into the macropore of ratchet sleeve 4 after several springs 1 are uniformly installed, the gap error being conducive to inside eliminating, three change gears 9
Hole in respectively connect locating rod 8, one end of locating rod 8 is connect with gear fixed cover 7, and the other end of locating rod 8 is solid with gear
The connection of seat 10 is fixed, three change gears 9 are the duplicate gear containing gear wheel in large diameter and small diameter gear, three change gears
9 gear wheel in large diameter is engaged with external tooth 301, and the engagement system of triangle constitutes stable gear transmission structure and gear drive
Relationship, the component that shift retainer 11 is fixed with gear after the 10 socket joint type installation of lower seat are packed into ratchet sleeve 4, and left side is evenly distributed with spine
11 left side of shift retainer of the gear teeth 1 is evenly distributed with several oblique notches 1101, and positioning regulating switch 12 fixes lower seat with gear
It is packed into ratchet sleeve 4 after 10 connections, 12 right side of positioning regulating switch is evenly distributed with several triangle jacking blocks 1201, one of triangle top
The position on 1201 side of block, which is set, stirs slot 1202, after the switch button 5 is packed into the square hole of ratchet sleeve 4, the fluctuation of switch button 5
Block insertion positioning regulating switch 12 is stirred in slot 1202, and the back side of positioning regulating switch 12 is evenly distributed with several steel balls 13, the spine
Fluted disc 14 is taken turns mounted in the back side of positioning regulating switch 12, the small diameter gear of the external tooth 1401 and change gear 9 of ratchet fluted disc 14
Engagement constitutes primary gear drive structure, and steel ball 13 is embedded in hook tooth 1402, and the adjusting ring 15 is inserted in ratchet fluted disc 14
Formula connects the entirety to be formed and can be rotated synchronously, and after the ratchet tailstock 18 is packed into 15 endoporus of adjusting ring, clamp spring 2 21 is packed into gear
Above-mentioned each component axial restraint in the jump-ring slot 2 302 of interior bar 3, ratchet accelerator of the invention, can by change gear with
The gear multiplying power of gear interior bar amplifies rotary speed, greatly improves service efficiency.
The ratchet tailstock 18 is packed into the hole being set up in parallel of step upper end two of adjusting ring 15 and sets spring 3 19 respectively,
3 19 upper end of the spring sets ratchet cross-arm 20 and covers, after ratchet tailstock 18 is connect with adjusting ring 15, under the step of adjusting ring 15
Spring 2 17 is packed into the hole at end, the top of the spring 2 17 sets steel ball 2 16, and the ratchet tailstock 18 after overall package is packed into
In the hole of adjusting ring 15, the inner periphery that ratchet cross-arm 20 locks adjusting ring 15 makes ratchet tailstock 18 and adjusting ring 15 form one together
Walk the black box of rotation.
The external tooth 1401 is identical as the small diameter gear modulus of change gear 9, the external tooth 301 and change gear 9
Gear wheel in large diameter modulus is identical, is conducive to transmission, and the number of teeth of 9 gear wheel in large diameter of change gear is the multiple of 301 number of teeth of external tooth, is conducive to
Gear interior bar 3 accelerates rotation.
Case study on implementation
Ratchet accelerator in the technical program is in application, need first to connect a rotation hand for being conducive to palm grip
Handle, rotating handle are connected with the installation of ratchet tailstock 18, manually adjust the triangle jacking block that switch button 5 drives positioning regulating switch 12
1201 are embedded in oblique notch 1101, and the hook tooth 1402 and the hook tooth 1 of shift retainer 11 that make ratchet fluted disc 14 are nibbled
It closes, ratchet tailstock 18, ratchet fluted disc 14, shift retainer 11, change gear 9, gear fix lower seat 10, ratchet sleeve 4 is in lock
Only state forms the entirety of a synchronous rotary, and when rotatable handle exerts a force, handle drives 18 synchronous same-speed of ratchet tailstock than rotating,
Also synchronous same-speed is than rotation for above-mentioned entirety, and lock gear interior bar 3 rotates change gear 9 with moving gear stock 1 simultaneously, gear stock
1 head mounted spiral shell screwdriver bit drives screw and the speed ratio of rotatable handle force rotation to rotate；Gear stock 1 is needed to accelerate rotation
When, manual 5 displacement of operating switch button drives positioning regulating switch 12 to rotate, and keeps triangle jacking block 1201 de- with oblique notch 1101
It opens, synchronizes ratchet fluted disc 14, adjusting ring 15 and ratchet tailstock 18 that install handle orientations toward left end open-top when disengagement, at this point, spine
The hook tooth 1402 for taking turns fluted disc 14 and the hook tooth 1 of shift retainer 11 disengage and are in out of mesh state, ratchet sleeve 4
In the state that can independently rotate, using being that left hand holds 4 excircle of ratchet sleeve, right hand rotating handle, handle drives ratchet tail
Seat 18 rotates, and ratchet tailstock 18 drives adjusting ring 15 and ratchet fluted disc 14 to rotate, and the external tooth 1401 of ratchet fluted disc 14 drives engagement
The small-diameter gear of the change gear 9 of connection rotates, because change gear 9 is twin gear, small-diameter gear becomes while rotation
The large diameter gear of fast gear 9 also rotates synchronously, and the large diameter gear of three change gears 9 drives the external tooth of intermediate engagement connection simultaneously
301 driving gear interior bars 3 rotate, the major diameter of the rotary speed of gear interior bar 3 and the rotary speed of handle depending on change gear 9
The gear ratio of number of gear teeth and external tooth 301, if the number of teeth of the large diameter gear of change gear 9 is 40, the external tooth 301 of gear interior bar 3
The number of teeth is 10, and rotation speed ratio is 4:1, the rotation of ratchet tailstock 18 of external handle is turned around, four circle of the rotation of gear interior bar 3, rotary teeth
The rotation of 3 synchronous drive gear stock 1 of interior bar is taken turns, rotation acceleration function is realized in the rotation of 1 head mounted spiral shell screwdriver bit of gear stock,
Greatly improve application efficiency.
When accelerating rotation, turning moment accordingly reduces, and when screw will be screwed into position fastening, operating switch button 5, which is cancelled, to be added
Fast function, turning moment improve immediately, screw means.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in,
It should be covered by the protection scope of the present invention.
Claims (3)
1. hand-held tool ratchet accelerator, it is characterised in that：Including gear stock (1), clamp spring (2), gear interior bar (3), ratchet
It covers under (4), switch button (5), spring one (6), gear fixed cover (7), locating rod (8), change gear (9), gear fixation
Seat (10), shift retainer (11), positioning regulating switch (12), steel ball (13), ratchet fluted disc (14), adjusting ring (15), steel ball
Two (16), spring two (17), ratchet tailstock (18), spring three (19), ratchet cross-arm (20), clamp spring two (21), the gear are long
Bar (1) is packed into the aperture of the ratchet sleeve (4) of hat shape and clamp spring (2) is packed into the jump-ring slot of gear stock (1) after connection, described
The external tooth (301) that gear interior bar (3) is packed into head in ratchet sleeve (4) macropore is connect with the interior tooth engagement of gear stock (1), described
Gear fixed cover (7) front end is uniformly installed several springs one (6) and is packed into the macropore of ratchet sleeve (4) afterwards, three change gears
(9) locating rod (8) is respectively connected in hole, one end of locating rod (8) is connect with gear fixed cover (7), locating rod (8) it is another
End is fixed lower seat (10) with gear and is connect, and three change gears (9) are the duplex-gear containing gear wheel in large diameter and small diameter gear
Wheel, the gear wheel in large diameter of three change gears (9) are engaged with external tooth (301), and shift retainer (11) fixes lower seat with gear
(10) component after socket joint type installation is packed into ratchet sleeve (4), and left side is evenly distributed with the shift retainer of hook tooth one (1102)
(11) left side is evenly distributed with several oblique notches (1101), and positioning regulating switch (12) fixes after lower seat (10) is connect with gear and is packed into spine
In wheel case (4), positioning regulating switch (12) right side is evenly distributed with several triangle jacking blocks (1201), one of triangle jacking block (1201)
The position on side, which is set, stirs slot (1202), after the switch button (5) is packed into the square hole of ratchet sleeve (4), the wave of switch button (5)
Motion block insertion positioning regulating switch (12) is stirred in slot (1202), and the back side of positioning regulating switch (12) is evenly distributed with several steel balls
(13), for the ratchet fluted disc (14) mounted in the back side of positioning regulating switch (12), external tooth (1401) is small straight with change gear (9)
Diameter gear engages, in the embedded hook tooth (1402) of steel ball (13), the adjusting ring (15) and ratchet fluted disc (14) nested connection,
After the ratchet tailstock (18) is packed into adjusting ring (15) endoporus, clamp spring two (21) is packed into the jump-ring slot two (302) of gear interior bar (3)
It is interior above-mentioned each component axial restraint.
2. hand-held tool ratchet accelerator as described in claim 1, it is characterised in that：The ratchet tailstock (18) is packed into adjusting ring
(15) spring three (19) is set respectively in the hole being set up in parallel of step upper end two, and the spring three (19) upper end sets ratchet cross-arm
(20) it covers, spring two (17) is packed into the hole of the step lower end of adjusting ring (15), steel ball is set at the top of the spring two (17)
Two (16), the ratchet tailstock (18) after overall package are packed into the hole of adjusting ring (15).
3. hand-held tool ratchet accelerator as described in claim 1, it is characterised in that：The external tooth (1401) and change gear
(9) small diameter gear modulus is identical, and the external tooth (301) is identical as the gear wheel in large diameter modulus of change gear (9), gear teeth
The number of teeth for taking turns (9) gear wheel in large diameter is the multiple of external tooth (301) number of teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811052702.9A CN108789255B (en) | 2018-09-10 | 2018-09-10 | Ratchet accelerating device for hand tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811052702.9A CN108789255B (en) | 2018-09-10 | 2018-09-10 | Ratchet accelerating device for hand tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108789255A true CN108789255A (en) | 2018-11-13 |
| CN108789255B CN108789255B (en) | 2023-11-07 |
Family
ID=64082258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811052702.9A Active CN108789255B (en) | 2018-09-10 | 2018-09-10 | Ratchet accelerating device for hand tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108789255B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020161059A3 (en) * | 2019-02-04 | 2020-10-01 | Wera Werkzeuge Gmbh | Screwdriver tool with a gear ratio |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4846027A (en) * | 1988-08-19 | 1989-07-11 | Taiwan Silver Star Industrial Co., Ltd. | Screwdriver |
| US20100018366A1 (en) * | 2008-07-24 | 2010-01-28 | Gong Fong Enterprise Co., Ltd. | Ratchet screwdriver with an accelerating structure |
| CN101749370A (en) * | 2008-12-16 | 2010-06-23 | 创科电动工具科技有限公司 | Automatic transmission for a power tool |
| CN102744700A (en) * | 2012-07-02 | 2012-10-24 | 南京德朔实业有限公司 | Impact ratchet wrench |
| CN103507008A (en) * | 2013-10-23 | 2014-01-15 | 浙江三鼎工具有限公司 | Ratchet gear with double-shaft output |
| CN103507018A (en) * | 2013-10-23 | 2014-01-15 | 浙江三鼎工具有限公司 | Multi-rotation device |
| CN203765536U (en) * | 2014-01-24 | 2014-08-13 | 浙江斐凌工具有限公司 | Screwdriver speed change ratchet device and screwdriver thereof |
| US20160167205A1 (en) * | 2013-01-18 | 2016-06-16 | Hangzhou Great Star Industrial Co., Ltd. | Bi-directional screwdriver |
| JP3208191U (en) * | 2015-10-21 | 2016-12-28 | 鐙順實業股▲分▼有限公司 | Hand tools |
| US20160375562A1 (en) * | 2015-06-26 | 2016-12-29 | Hsuan-Sen Shiao | Speed-Selectable Hand Tool |
| CN106641171A (en) * | 2015-10-30 | 2017-05-10 | 苏州宝时得电动工具有限公司 | Speed change tool |
| CN207534752U (en) * | 2017-11-01 | 2018-06-26 | 昆山松明精密机电有限公司 | The optional percussion mechanism and electric tool for using impact or drill mode |
| CN208773429U (en) * | 2018-09-10 | 2019-04-23 | 绍兴环洲工具制造有限公司 | A kind of hand-held tool ratchet accelerator |
-
2018
- 2018-09-10 CN CN201811052702.9A patent/CN108789255B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4846027A (en) * | 1988-08-19 | 1989-07-11 | Taiwan Silver Star Industrial Co., Ltd. | Screwdriver |
| US20100018366A1 (en) * | 2008-07-24 | 2010-01-28 | Gong Fong Enterprise Co., Ltd. | Ratchet screwdriver with an accelerating structure |
| CN101749370A (en) * | 2008-12-16 | 2010-06-23 | 创科电动工具科技有限公司 | Automatic transmission for a power tool |
| CN102744700A (en) * | 2012-07-02 | 2012-10-24 | 南京德朔实业有限公司 | Impact ratchet wrench |
| US20160167205A1 (en) * | 2013-01-18 | 2016-06-16 | Hangzhou Great Star Industrial Co., Ltd. | Bi-directional screwdriver |
| CN103507008A (en) * | 2013-10-23 | 2014-01-15 | 浙江三鼎工具有限公司 | Ratchet gear with double-shaft output |
| CN103507018A (en) * | 2013-10-23 | 2014-01-15 | 浙江三鼎工具有限公司 | Multi-rotation device |
| CN203765536U (en) * | 2014-01-24 | 2014-08-13 | 浙江斐凌工具有限公司 | Screwdriver speed change ratchet device and screwdriver thereof |
| US20160375562A1 (en) * | 2015-06-26 | 2016-12-29 | Hsuan-Sen Shiao | Speed-Selectable Hand Tool |
| JP3208191U (en) * | 2015-10-21 | 2016-12-28 | 鐙順實業股▲分▼有限公司 | Hand tools |
| CN106641171A (en) * | 2015-10-30 | 2017-05-10 | 苏州宝时得电动工具有限公司 | Speed change tool |
| CN207534752U (en) * | 2017-11-01 | 2018-06-26 | 昆山松明精密机电有限公司 | The optional percussion mechanism and electric tool for using impact or drill mode |
| CN208773429U (en) * | 2018-09-10 | 2019-04-23 | 绍兴环洲工具制造有限公司 | A kind of hand-held tool ratchet accelerator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020161059A3 (en) * | 2019-02-04 | 2020-10-01 | Wera Werkzeuge Gmbh | Screwdriver tool with a gear ratio |
| TWI845605B (en) * | 2019-02-04 | 2024-06-21 | 德商維拉維克催格有限責任公司 | Screwdriver with gear set |
| US12076838B2 (en) | 2019-02-04 | 2024-09-03 | Wera Werkzeuge Gmbh | Screwdriver tool with a gear ratio |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108789255B (en) | 2023-11-07 |
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