CN102723217A - Switch reversing device in electric tool - Google Patents
Switch reversing device in electric tool Download PDFInfo
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- CN102723217A CN102723217A CN2012102343810A CN201210234381A CN102723217A CN 102723217 A CN102723217 A CN 102723217A CN 2012102343810 A CN2012102343810 A CN 2012102343810A CN 201210234381 A CN201210234381 A CN 201210234381A CN 102723217 A CN102723217 A CN 102723217A
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- reversing
- housing
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- terminals
- reversing shaft
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Abstract
The invention discloses a switch reversing device in an electric tool. The switch reversing device is quick in reversing and good in contact after reversing, and comprises a shell, wherein two pairs of terminals are arranged in the shell, a connecting wire at one end of one pair of terminals is perpendicular to a connecting wire at one end of the other pair of terminals, the distance between the end of each terminal and the foot of a perpendicular is equal, and a disc-shaped reversing shaft is respectively arranged on the same sides of the four terminals; two parallel reversing sheets for switching the on/off of the two pairs of terminals are arranged on a part of the reversing shaft positioned on one side of the terminals; a circle of positioning groove or positioning bulge is arranged on the outer wall of the reversing shaft along the circumferential direction; a positioning rib which is buckled in the positioning groove on the reversing shaft or two positioning separation blades which clamp the positioning bulge are arranged in the shell; and a reversing rod which drives the reversing shaft to rotate is arranged on the shell. The switch reversing device has the advantages that when the switch reversing device is rotated by using the disc-shaped reversing shafts, the distance between the ends of the four terminals can be reduced, so that the entire structure is more compact, and the reversing operation is flexible, quick and convenient.
Description
Technical field
The present invention relates to the switch reversing arrangement in a kind of electric tool.
Background technology
In the switch reversing arrangement in the electric tool of using always, wherein commutating structure complicated (stand alone type switching-over) assembles with shell.In order to cooperate with commutating structure and the consideration of fail safe, the distance design between the four pairs of terminal ends very big makes the overall dimensions of reversing arrangement become big, and when switch operation, occurs phenomenon such as loose contact easily since part more, cause assembling inconvenience.
Summary of the invention
Technical problem to be solved by this invention is: the switch reversing arrangement in a kind of electric tool quick, that the contact of switching-over back is good that commutates is provided.
For solving the problems of the technologies described above; The technical scheme that the present invention adopts is: the switch reversing arrangement in a kind of electric tool, comprise housing, and be provided with two pairs of terminals in the said housing; One end of four terminals passes housing respectively; Wherein the line of the other end of pair of terminal is vertical with another line to the other end of terminal, and the end that each terminal should be held is equal to the distance of intersection point, and the homonymy of four terminals is provided with discoidal reversing shaft; The position that reversing shaft is positioned at terminal one side is provided with the commutator segment that two pairs of terminal break-makes are switched in two parallel being used to; Along the circumferential direction be provided with circle location notch or a positioning convex on the outer wall of reversing shaft, be provided with the positioning rib that snaps in location notch on the reversing shaft in the housing or with two locating stop pieces of positioning convex clamping, housing is provided with and drives the reversing bar that reversing shaft rotates.
Said reversing shaft is provided with mounting hole, and the middle part of reversing bar is rotated and is arranged on the housing, and an end of reversing bar stretches out housing, and the other end stretches in the housing, and the reversing bar end of stretching into housing is provided with finger, and an end of finger stretches in the mounting hole of reversing shaft;
The middle part of said reversing bar is rotated and is arranged on the housing, and an end of reversing bar stretches out housing, and the other end stretches in the housing, and the reversing bar end of stretching into housing is provided with mounting hole, and reversing shaft is provided with finger, and an end of finger stretches in the mounting hole on the reversing bar;
Said commutator segment roughly takes the shape of the letter U; The two ends of commutator segment snap in the reversing shaft respectively; Be respectively arranged with spring between the middle part of commutator segment and the reversing shaft, the commutator segment interlude is positioned on the position of terminal one side and is respectively arranged with a pair of convexity, and these two pairs of convexities are corresponding with two pairs of terminals respectively.
The invention has the beneficial effects as follows: utilize the disc type reversing shaft, make its rotation after, just can dwindle four distances between the terminal ends, make overall structure compacter, and it is flexible, quick and easy to commutate.
Description of drawings
Fig. 1 is the structure chart of the switch reversing arrangement in the electric tool of the present invention;
Fig. 2 is the exploded view of Fig. 1;
Fig. 3 is the structure chart of reversing shaft;
Vertical view when Fig. 4 is a kind of state of the switch reversing arrangement in the electric tool of the present invention;
Fig. 5 is the vertical view that removes among Fig. 4 behind reversing bar and the reversing shaft;
Vertical view when Fig. 6 is the another kind of state of the switch reversing arrangement in the electric tool of the present invention;
Fig. 7 is the vertical view that removes among Fig. 6 behind reversing bar and the reversing shaft.
Among the figure: 1, housing, 2, the first terminal, 3, second terminal, the 4, the 3rd terminal, the 5, the 4th terminal; 6, reversing shaft, 7, first commutator segment, 8, second commutator segment, 9, positioning convex, 10, locating stop piece; 11, reversing bar, 12, mounting hole, 13, finger, 14, spring, 15, convexity.
Embodiment
Below in conjunction with accompanying drawing, describe specific embodiments of the present invention in detail.
Like Fig. 1, shown in Figure 2, the switch reversing arrangement in the electric tool of the present invention comprises housing 1, is provided with two pairs of terminals (the first terminal 2, second terminal 3, the 3rd terminal 4, the 4th terminal 5) in the said housing.One end of the first terminal 2, second terminal 3, the 3rd terminal 4 and the 4th terminal 5 passes housing 1 respectively; Wherein the line of the end of the line of the end of the first terminal 2 and the 3rd terminal 4 other ends and second terminal 3 and the 4th terminal 5 other ends is perpendicular; And this end end of the first terminal 2, second terminal 3, the 3rd terminal 4, the 4th terminal 5 equates to the distance of intersection point; The upside of the first terminal 2, second terminal 3, the 3rd terminal 4, the 4th terminal 5 is provided with discoidal reversing shaft 6, and above-mentioned intersection point is on the central axis of reversing shaft 6.As shown in Figure 3; The downside of reversing shaft 6 is provided with the commutator segment that two pairs of terminal break-makes are switched in two parallel being used to---first commutator segment 7 and second commutator segment 8; Along the circumferential direction be provided with positioning convex 9 on the outer wall of reversing shaft 6, be provided with 10, two pairs of locating stop pieces 10 of two pairs of arc locating stop pieces in the housing positioning convex on the reversing shaft 69 is grasped; Be about to reversing shaft and be limited between two pairs of locating stop pieces 10, make reversing shaft 6 rotation in the original place.When actual production, a circle location notch is set on can also being employed on the outer wall of reversing shaft 6 along the circumferential direction, be provided with the positioning rib that snaps in location notch on the reversing shaft 6 in the housing 1, this kind scenario-frame is simple, has just figured no longer in addition at this.Housing 1 is provided with the reversing bar 11 that drives reversing shaft 6 rotations.Its concrete structure is following: the middle part of said reversing bar 11 is rotated and is arranged on the housing 1; One end of reversing bar 11 stretches out housing 1; The other end stretches in the housing 1; And reversing bar 11 ends of stretching into housing 1 are provided with mounting hole 12, and reversing shaft 6 is provided with finger 13, and an end of finger 13 stretches in the mounting hole 12 on the reversing bar 11.Certainly when actual production; Also can adopt following structure: reversing shaft 6 is provided with mounting hole, and the middle part of reversing bar 11 is rotated and is arranged on the housing 1, and an end of reversing bar 11 stretches out housing 1; The other end stretches in the housing 1; And reversing bar 11 ends of stretching into housing 1 are provided with finger, and an end of finger stretches in the mounting hole of reversing shaft 6, also can be with stretching in the mounting hole after the reversing bar 11 end bendings.Said structure is simple, and can be after stirring reversing bar 11, and reversing bar 11 all has two extreme positions, guarantees that two commutator segments and four termination contact are good, can not break away from.In order to guarantee closely to contact between commutator segment and the terminal; And switching-over is easy, smooth and easy; First commutator segment 7 and second commutator segment 8 roughly take the shape of the letter U; The two ends of first commutator segment 7 and second commutator segment 8 snap in respectively in the reversing shaft 6, and guarantee that first commutator segment 7 and second commutator segment 8 can not break away between middle part and the reversing shaft 6 of reversing shaft 6, the first commutator segments 7 and second commutator segment 8 and be respectively arranged with spring 14; First commutator segment 7 and second commutator segment, 8 interludes are positioned at and are respectively arranged with a pair of protrudingly 15 on the position of terminal one side, and these two pairs of convexities 15 are corresponding with two pairs of terminals respectively.
Operation principle of the present invention is: like Fig. 4, shown in Figure 5, this moment, the first terminal 2 linked to each other through first commutator segment 7 with second terminal 3; The 3rd terminal 4 links to each other through second commutator segment 8 with the 4th terminal 5.When needs commutate, stir reversing bar 11, the finger 13 of reversing bar 11 ends is stirred reversing shaft 6 through mounting hole 12 and is clockwise rotated; First commutator segment 7 and second commutator segment 8 commutate thereupon; Like Fig. 6, shown in Figure 7, first commutator segment 7 after the switching-over is with second terminal 3 and 4 conductings of the 3rd terminal, and second commutator segment 8 is with the first terminal 2 and 5 conductings of the 4th terminal; Thereby realize the switching-over of switch, for example control motor backward rotation in the electric tool etc.Above-mentioned reversing arrangement compact conformation, switching-over are convenient, fast, and contacts well between commutator segment and the terminal after the switching-over, have guaranteed the operate as normal of electric tool.
Claims (4)
1. the switch reversing arrangement in the electric tool; Comprise housing; It is characterized in that: be provided with two pairs of terminals in the said housing, an end of four terminals passes housing respectively, and wherein the line of the other end of pair of terminal is vertical with another line to the other end of terminal; And the end that each terminal should be held equates to the distance of intersection point; The homonymy of four terminals is provided with discoidal reversing shaft, and the position that reversing shaft is positioned at terminal one side is provided with the commutator segment that two pairs of terminal break-makes are switched in two parallel being used to, and along the circumferential direction is provided with a circle location notch or a positioning convex on the outer wall of reversing shaft; Be provided with the positioning rib that snaps in location notch on the reversing shaft in the housing or with two locating stop pieces of positioning convex clamping, housing is provided with and drives the reversing bar that reversing shaft rotates.
2. the switch reversing arrangement in the electric tool according to claim 1; It is characterized in that: said reversing shaft is provided with mounting hole; The middle part of reversing bar is rotated and is arranged on the housing, and an end of reversing bar stretches out housing, and the other end stretches in the housing; And the reversing bar end of stretching into housing is provided with finger, and an end of finger stretches in the mounting hole of reversing shaft.
3. the switch reversing arrangement in the electric tool according to claim 1; It is characterized in that: the middle part of said reversing bar is rotated and is arranged on the housing; One end of reversing bar stretches out housing, and the other end stretches in the housing, and the reversing bar end of stretching into housing is provided with mounting hole; Reversing shaft is provided with finger, and an end of finger stretches in the mounting hole on the reversing bar.
4. according to the switch reversing arrangement in claim 1 or the 2 or 3 described electric tools; It is characterized in that: said commutator segment roughly takes the shape of the letter U; The two ends of commutator segment snap in the reversing shaft respectively; Be respectively arranged with spring between the middle part of commutator segment and the reversing shaft, the commutator segment interlude is positioned on the position of terminal one side and is respectively arranged with a pair of convexity, and these two pairs of convexities are corresponding with two pairs of terminals respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102343810A CN102723217A (en) | 2012-07-09 | 2012-07-09 | Switch reversing device in electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102343810A CN102723217A (en) | 2012-07-09 | 2012-07-09 | Switch reversing device in electric tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102723217A true CN102723217A (en) | 2012-10-10 |
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ID=46948947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102343810A Pending CN102723217A (en) | 2012-07-09 | 2012-07-09 | Switch reversing device in electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102723217A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103227069A (en) * | 2013-04-03 | 2013-07-31 | 苏州华之杰电讯有限公司 | Switch in electric power tool |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1855328A (en) * | 2005-04-18 | 2006-11-01 | 创科实业有限公司 | Switch assembly |
| CN2838017Y (en) * | 2005-11-03 | 2006-11-15 | 张家港华捷电子有限公司 | Reversing device of speed governing switch |
| CN101009166A (en) * | 2006-01-27 | 2007-08-01 | 创科实业有限公司 | Switch component |
| CN101699594A (en) * | 2006-01-27 | 2010-04-28 | 上海拜骋电器有限公司 | Switch component |
| CN101699593A (en) * | 2006-01-27 | 2010-04-28 | 上海拜骋电器有限公司 | Switch component |
| CN101707148A (en) * | 2006-01-27 | 2010-05-12 | 上海拜骋电器有限公司 | Switch component |
| CN102205537A (en) * | 2011-05-31 | 2011-10-05 | 张家港华捷电子有限公司 | Steering structure for electric tool |
| CN202650929U (en) * | 2012-07-09 | 2013-01-02 | 张家港华捷电子有限公司 | Switch reversing device in electric tool |
-
2012
- 2012-07-09 CN CN2012102343810A patent/CN102723217A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1855328A (en) * | 2005-04-18 | 2006-11-01 | 创科实业有限公司 | Switch assembly |
| CN2838017Y (en) * | 2005-11-03 | 2006-11-15 | 张家港华捷电子有限公司 | Reversing device of speed governing switch |
| CN101009166A (en) * | 2006-01-27 | 2007-08-01 | 创科实业有限公司 | Switch component |
| CN101699594A (en) * | 2006-01-27 | 2010-04-28 | 上海拜骋电器有限公司 | Switch component |
| CN101699593A (en) * | 2006-01-27 | 2010-04-28 | 上海拜骋电器有限公司 | Switch component |
| CN101707148A (en) * | 2006-01-27 | 2010-05-12 | 上海拜骋电器有限公司 | Switch component |
| CN102205537A (en) * | 2011-05-31 | 2011-10-05 | 张家港华捷电子有限公司 | Steering structure for electric tool |
| CN202650929U (en) * | 2012-07-09 | 2013-01-02 | 张家港华捷电子有限公司 | Switch reversing device in electric tool |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103227069A (en) * | 2013-04-03 | 2013-07-31 | 苏州华之杰电讯有限公司 | Switch in electric power tool |
| CN103227069B (en) * | 2013-04-03 | 2015-07-15 | 苏州华之杰电讯有限公司 | Switch in electric power tool |
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Application publication date: 20121010 |