CN103878748A - Compact impact structure - Google Patents
Compact impact structure Download PDFInfo
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- CN103878748A CN103878748A CN201210560385.8A CN201210560385A CN103878748A CN 103878748 A CN103878748 A CN 103878748A CN 201210560385 A CN201210560385 A CN 201210560385A CN 103878748 A CN103878748 A CN 103878748A
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- impact
- end tooth
- trough
- impact structure
- casing
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Abstract
The invention discloses a compact impact structure. The compact impact structure has the advantages that structures and arrangement modes of various components of the compact impact structure are optimized, and portions which are matched with a back groove and a shifting fork are arranged on the outer periphery of a housing case, so that the back groove, the shifting fork, a movable-end tooth and a fixed-end tooth can be spatially arranged side by side, the axial size of an impact shaft can be effectively reduced, and the integral impact structure is compact; an impact mechanism is arranged on an electric tool with the requirement on an impact function, the axial size of the impact shaft of the electric tool can be reduced, and the integral structure of the electric tool can be minimized.
Description
Technical field
the present invention relates to a kind of compact impact structure, relate in particular to a kind of impact structure being applied on electric tool.
Background technology
on some electric tools, as D.C. electric drill, screwdriver, its impact process is generally to drive moved end tooth to engage to realize with engaging with disengaging of quiet end tooth by the cooperation of back-trough and shift fork, in prior art, moved end tooth, quiet end tooth, back-trough, shift fork are often along in the axial arranging of impacting shaft the same space in chassis cavity, arrange and tend to make the axial dimension of impact structure longer like this, and then make the size of electric tool complete machine larger, do not meet electric tool structure compactness, compact development trend.
Summary of the invention
the object of this invention is to provide a kind of compact impact structure, thereby the axial dimension of the electric tool that this impact structure is installed is reduced, overall structure is more compact.
for achieving the above object, the technical solution used in the present invention is: a kind of compact impact structure, described impact structure comprises the casing with hollow cavity, be set in rotationally the torsion cover in perimembranous outside described casing, be located in vertically the impacting shaft in the inner chamber of described casing, described impact structure also comprises can intermeshing quiet end tooth, moved end tooth, described quiet end tooth is arranged in the inner chamber of described casing regularly, described moved end tooth is set on described impacting shaft regularly, on described quiet end tooth, offer the centre bore running through vertically, described impacting shaft slides axially and is located in described centre bore, described impact structure also comprises can be arranged on the shift fork on described casing vertically movably, the back-trough matching with described shift fork, described back-trough is set in the outside perimembranous of described casing rotationally, described back-trough is arranged in the inner chamber of described torsion cover and is fixedly connected with described torsion cover, on described back-trough, offer multiple grooves, on described shift fork, the end relative with described back-trough is provided with multiple corresponding matching vertically and embeds the projection in described multiple groove, on described impacting shaft, be also provided with plane bearing, described shift fork is set on described impacting shaft between described moved end tooth and described plane bearing, described impact structure has non-impact conditions and impact conditions, when described impact structure is during in non-impact conditions, described multiple projection is supported on described back-trough, described moved end tooth, described quiet end tooth has gap vertically, when described impact structure is during in impact conditions, described multiple projections are embedded accordingly in described multiple grooves, and described moved end tooth, described quiet end tooth are meshed to realize and impact.
preferably, described shift fork has for being set in the installation portion on described impacting shaft, the operate portions for matching with described back-trough, the multiple boss that are connected described installation portion and described operate portions, described multiple projection is arranged in described operate portions, described operate portions is set in the outside perimembranous of described casing, described multiple boss was upwards intervally arranged along the week of described installation portion, described operate portions, in the outside perimembranous of described casing, offer multiple chutes, described multiple boss are arranged in described multiple chute vertically slippingly.
preferably, described boss has 3, and accordingly, described chute has 3.
as a kind of concrete embodiment, described multiple groove is evenly intervally arranged mutually along same circumferencial direction on described back-trough, accordingly, described multiple projections are evenly intervally arranged mutually along same circumferencial direction on described shift fork, the number of the no more than described groove of number of described projection.
due to the utilization of technique scheme, the present invention compared with prior art has following advantages: compact impact structure of the present invention, wherein be optimized by the structure to each parts and set-up mode, the part that back-trough and shift fork are matched is arranged in the outside perimembranous of casing, thereby make back-trough, shift fork and moved end tooth, quiet end tooth spatially realize arranged side by side, setting has reduced the axial dimension of impacting shaft effectively like this, makes the overall structure of this impact structure more compact.This beater mechanism is arranged on the electric tool that need to realize impact function, can makes the axial dimension of the impacting shaft of this electric tool reduce, complete machine structure is more compact.
Accompanying drawing explanation
the master that accompanying drawing 1 is compact impact structure of the present invention looks cross-sectional schematic;
accompanying drawing 2 is the overall structure schematic diagram of shift fork in the present invention;
accompanying drawing 3 is the overall structure schematic diagram of back-trough in the present invention;
accompanying drawing 4 is installed on the sectional structure schematic diagram on battery type electric drill for compact impact structure of the present invention.
wherein: 1, casing; 2, torsion cover; 3, impacting shaft; 4, quiet end tooth; 5, moved end tooth; 6, back-trough; 61, groove; 7, shift fork; 71, installation portion; 72, operate portions; 73, boss; 74, projection; 8, plane bearing; 9, battery type electric drill.
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The specific embodiment
below in conjunction with accompanying drawing and specific embodiment, technical scheme of the present invention is further elaborated.
referring to the compact impact structure shown in Fig. 1～3, this impact structure comprises casing 1, torsion cover 2, impacting shaft 3, can intermeshing moved end tooth 5 and quiet end tooth 4, casing 1 has hollow cavity, torsion cover 2 is set in the outside perimembranous of casing 1 rotationally, impacting shaft 3 is located in the inner chamber of casing 1 vertically, quiet end tooth 4 is arranged in the inner chamber of casing 1 regularly, between the inner chamber of itself and casing 1, can adopt interference to be connected, on quiet end tooth 4, offer the centre bore running through vertically, impacting shaft 3 slides axially and is located in above-mentioned centre bore, moved end tooth 5 is set on impacting shaft 3 regularly, between moved end tooth 5 and impacting shaft 3, also can adopt interference to be connected, moved end tooth 5 can be with impacting shaft 3 motion vertically in the inner chamber of casing 1.
shown in Fig. 1～3, the back-trough 6 that this impact structure also comprises shift fork 7, matches with shift fork 7, shift fork 7 can be arranged on casing 1 vertically movably, back-trough 6 is set in the outside perimembranous of casing 1 rotationally, and the inner chamber that back-trough 6 is arranged in torsion cover 2 is fixedly connected with torsion cover 2, and user's rotary torsion cover 2 can make back-trough 6 rotate around casing 1.On back-trough 6, offer multiple grooves 61, on shift fork 7, the end relative with back-trough 6 is provided with multiple corresponding matching vertically and embeds the projection 74 in above-mentioned multiple groove 61.In the present embodiment, multiple grooves 61 are evenly intervally arranged mutually along same circumferencial direction on back-trough 6, accordingly, multiple protruding 74 are evenly intervally arranged mutually along same circumferencial direction on shift fork 7, and the number of the no more than groove 61 of number of projection 74, here, projection 74, groove 61 are respectively equipped with 8.Impacting shaft 3 is also provided with plane bearing 8, shift fork 7 is set on impacting shaft 3 between moved end tooth 5 and plane bearing 8, like this shift fork 7 can be along with the axially-movable of impacting shaft 3 vertically relatively casing 1 there is slippage, simultaneously, in the time that impacting shaft 3 rotates, shift fork 7 can not rotate.
this impact structure has non-impact conditions and impact conditions, when this impact structure is during in non-impact conditions, on shift fork 7 multiple protruding 74 is supported on back-trough 6, and moved end tooth 5, quiet end tooth 4 have vertically gap and keep safe distance, and now impacting shaft 3 can not move vertically; When this impact structure is during in impact conditions, on shift fork 7 multiple protruding 74 is embedded in the multiple grooves 61 on back-trough 6 accordingly, impacting shaft 3 moves vertically, and moved end tooth 5 disappears with quiet end tooth 4 gap vertically and moved end tooth 5 is meshed with quiet end tooth 4 to realize impacts.In use, if desired this impact structure switches under impact conditions and non-impact conditions, and user only needs rotary torsion cover 2, thereby adjusts the mated condition of shift fork 7 projections 74 and back-trough 6 upper grooves 61.Because back-trough 6 is set in the outside perimembranous of casing 1, the end that shift fork 7 is provided with projection 74 is also arranged in the outside perimembranous of casing 1, back-trough 6, shift fork 7 relative moved end teeth 5, quiet end tooth 4 have spatially been realized arranged side by side, so effectively shorten the size on impact structure is axial, the complete machine size of the electric tool that this impact structure is installed is reduced.
in the present embodiment, shift fork 7 arranges in the following manner: referring to Fig. 1, Fig. 2, shift fork 7 has for being set in the installation portion 71 on impacting shaft 3, for the operate portions 72 matching with back-trough 6, and for being connected and installed multiple boss 73 of portion 71 and operate portions 72, be arranged on operate portions 72 for the projection 74 matching with back-trough 6 upper grooves 61, operate portions 72 is set in the outside perimembranous of casing 1, installation portion 71 is arranged in the inner chamber of casing 1, multiple boss 73 are upwards arranged along installation portion 71 and operate portions 72 in week separately, in the outside perimembranous of casing 1, offer multiple chute (not shown)s, these multiple boss 73 are arranged in above-mentioned multiple chute correspondingly vertically slippingly.Here, boss 73, chute have respectively 3.
shown in Figure 4, compact impact structure of the present invention is applied on battery type electric drill 9, it is more compact that the overall structure of this battery type electric drill 9 is compared existing structure, and complete machine size has also obtained reducing, and it is more small and exquisite that the structure of complete machine is compared existing structure.
above-described embodiment is only explanation technical conceive of the present invention and feature; its object is to allow person skilled in the art can understand content of the present invention and be implemented; can not limit the scope of the invention with this; all equivalences that Spirit Essence is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (4)
1. a compact impact structure, described impact structure comprises the casing with hollow cavity, be set in rotationally the torsion cover in perimembranous outside described casing, be located in vertically the impacting shaft in the inner chamber of described casing, described impact structure also comprises can intermeshing quiet end tooth, moved end tooth, described quiet end tooth is arranged in the inner chamber of described casing regularly, described moved end tooth is set on described impacting shaft regularly, on described quiet end tooth, offer the centre bore running through vertically, described impacting shaft slides axially and is located in described centre bore, it is characterized in that: described impact structure also comprises can be arranged on the shift fork on described casing vertically movably, the back-trough matching with described shift fork, described back-trough is set in the outside perimembranous of described casing rotationally, described back-trough is arranged in the inner chamber of described torsion cover and is fixedly connected with described torsion cover, on described back-trough, offer multiple grooves, on described shift fork, the end relative with described back-trough is provided with multiple corresponding matching vertically and embeds the projection in described multiple groove, on described impacting shaft, be also provided with plane bearing, described shift fork is set on described impacting shaft between described moved end tooth and described plane bearing, described impact structure has non-impact conditions and impact conditions, when described impact structure is during in non-impact conditions, described multiple projection is supported on described back-trough, described moved end tooth, described quiet end tooth has gap vertically, when described impact structure is during in impact conditions, described multiple projections are embedded accordingly in described multiple grooves, and described moved end tooth, described quiet end tooth are meshed to realize and impact.
2. compact impact structure according to claim 1, it is characterized in that: described shift fork has for being set in the installation portion on described impacting shaft, for the operate portions matching with described back-trough, connect multiple boss of described installation portion and described operate portions, described multiple projection is arranged in described operate portions, described operate portions is set in the outside perimembranous of described casing, described multiple boss is along described installation portion, the week of described operate portions is upwards intervally arranged, in the outside perimembranous of described casing, offer multiple chutes, described multiple boss is arranged in described multiple chute vertically slippingly.
3. compact impact structure according to claim 1, is characterized in that: described boss has 3, and accordingly, described chute has 3.
4. according to the compact impact structure described in claim 1 or 2 or 3, it is characterized in that: described multiple grooves are evenly intervally arranged mutually along same circumferencial direction on described back-trough, accordingly, described multiple projection is evenly intervally arranged mutually along same circumferencial direction on described shift fork, the number of the no more than described groove of number of described projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210560385.8A CN103878748A (en) | 2012-12-21 | 2012-12-21 | Compact impact structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210560385.8A CN103878748A (en) | 2012-12-21 | 2012-12-21 | Compact impact structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103878748A true CN103878748A (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210560385.8A Pending CN103878748A (en) | 2012-12-21 | 2012-12-21 | Compact impact structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109129342A (en) * | 2017-06-28 | 2019-01-04 | 苏州宝时得电动工具有限公司 | Multi-functional drill |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2613331Y (en) * | 2003-04-23 | 2004-04-28 | 苏州宝时得电动工具有限公司 | Drill type electric tool |
| CN1748950A (en) * | 2004-09-17 | 2006-03-22 | 苏州宝时得电动工具有限公司 | Drill type electric tool |
| CN101244553A (en) * | 2007-02-16 | 2008-08-20 | 苏州宝时得电动工具有限公司 | Multifunctional percussion drill |
| CN101648286A (en) * | 2008-08-14 | 2010-02-17 | 苏州宝时得电动工具有限公司 | Hammer drill |
| CN201881359U (en) * | 2010-11-30 | 2011-06-29 | 苏州宝时得电动工具有限公司 | Power tool |
-
2012
- 2012-12-21 CN CN201210560385.8A patent/CN103878748A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2613331Y (en) * | 2003-04-23 | 2004-04-28 | 苏州宝时得电动工具有限公司 | Drill type electric tool |
| CN1748950A (en) * | 2004-09-17 | 2006-03-22 | 苏州宝时得电动工具有限公司 | Drill type electric tool |
| CN101244553A (en) * | 2007-02-16 | 2008-08-20 | 苏州宝时得电动工具有限公司 | Multifunctional percussion drill |
| CN101648286A (en) * | 2008-08-14 | 2010-02-17 | 苏州宝时得电动工具有限公司 | Hammer drill |
| CN201881359U (en) * | 2010-11-30 | 2011-06-29 | 苏州宝时得电动工具有限公司 | Power tool |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109129342A (en) * | 2017-06-28 | 2019-01-04 | 苏州宝时得电动工具有限公司 | Multi-functional drill |
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Application publication date: 20140625 |