CN106409552B - the reversing switch of electric tool - Google Patents
the reversing switch of electric tool Download PDFInfo
- Publication number
- CN106409552B CN106409552B CN201610779856.2A CN201610779856A CN106409552B CN 106409552 B CN106409552 B CN 106409552B CN 201610779856 A CN201610779856 A CN 201610779856A CN 106409552 B CN106409552 B CN 106409552B
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- CN
- China
- Prior art keywords
- commutation
- pedestal
- terminal
- movable contact
- contact spring
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/02—Bases, casings, or covers
- H01H9/06—Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner
- H01H9/063—Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner enclosing a reversing switch
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- Push-Button Switches (AREA)
Abstract
The reversing switch of electric tool,Including button,Pedestal,Interior pedestal,The push rod being connected with button,The commutation pedestal being arranged on above interior pedestal,It is arranged on the commutation above commutation pedestal and dials handle,The first terminal and Second terminal that pedestal is stretched out in one end are provided with commutation pedestal,One end of the first terminal is located at the centre position of two ends of Second terminal,The first terminal,Second terminal and commutation pedestal are structure as a whole,One end of third terminal and forth terminal is separately positioned on pedestal,Another end is each passed through locating slot and extended on commutation pedestal,And its end is with being arranged on the end commutated in pedestal at grade,V-arrangement movable contact spring is hinged with forth terminal,The power supply terminal corresponding with V-arrangement movable contact spring is provided with pedestal,Location-plate is provided with above commutation pedestal,The stopping means dialled handle with commutation and be connected is provided with above location-plate.Switch assembling is simple, and cost is low, and commutation is accurate, and reliability is high, can lead automation.
Description
Technical field
The present invention relates to a kind of electric tool switch, the especially electric tool switch with reversing arrangement.
Background technology
The reversing switch of conventional electric tool, including button, pedestal, be arranged on be connected in pedestal with button push rod,
The commutation for being arranged on base interior is dialled the connecting shaft of handle, the driving lever being arranged on outside pedestal, connection commutation group handle and driving lever, set
Commutation terminal group in pedestal, it is fastened on commutation and dials the first commutation movable contact spring and second being in contact on handle with commutation pedestal and change
To movable contact spring, commutation terminal is respectively assembled on pedestal, and the reversing switch assembling of this structure is difficult, and fraction defective is high, and cost is high,
Easily occur the phenomenon of loose contact during switch operation, cause the reliability of switch low.
The content of the invention
The problem to be solved in the present invention is：The electric tool commutation that a kind of assembling is simple, reliability is high, cost is low is provided to open
Close.
To solve the above problems, the technical solution adopted by the present invention is：The reversing switch of electric tool, including button, base
Seat, the interior pedestal below pedestal, it is arranged in interior pedestal and push rod that button is connected, the commutation being arranged on above interior pedestal
Pedestal, the commutation for being arranged on base interior and being located above commutation pedestal dial handle, the driving lever being arranged on outside pedestal, connect and commutate
The the first commutation movable contact spring and the second commutation movable contact spring, its feature for dial the connecting shaft of handle and driving lever, being fastened on commutation group handle exist
In, it is characterised in that the first terminal and Second terminal that pedestal is stretched out in one end are provided with the commutation pedestal, the first terminal
Another end and two other end of Second terminal are in commutation pedestal, and the other end portion of the first terminal is located at
Two other end centre position of Second terminal, the first terminal, Second terminal and commutation pedestal are structure as a whole, described
Third terminal and forth terminal are provided with pedestal, pedestal both ends are provided with an end of locating slot, third terminal and forth terminal
Portion is separately positioned on pedestal, and another end is extended respectively on commutation pedestal through locating slot, and extends to commutation base
End on seat and the first terminal and Second terminal are arranged on end in commutation pedestal at grade, the pedestal that commutates it is upper
Side is provided with location-plate, is hinged in forth terminal and is provided with V-arrangement movable contact spring, the movable contact of V-arrangement movable contact spring and the end of third terminal
Portion is in contact, and power supply terminal corresponding with V-arrangement movable contact spring another movable contact is provided with the pedestal.
Further, the first terminal (12), Second terminal and commutation pedestal make integral knot by the way of injection
Structure.
Advantage is：The first terminal, Second terminal and commutation pedestal are structure as a whole and are assembled into pedestal, realize assembling letter
Single, cost is low, and dividing plate and location-plate are set respectively above and below the pedestal that commutates so that the position of terminal is fixed, and is being commutated
The reliability of reversing switch is improved in operation, contact is good.
Further, the stopping means that the end of handle sets restricted commutation to dial handle slewing area is dialled in commutation.
Further, stopping means includes spring seat, is provided with the cylinder chamber of one end open in spring seat, in cylinder chamber
Provided with ball, be provided with spring between ball and the bottom of cylinder chamber, described commutation dial handle end open up it is fluted, with ball phase
Coordinate, groove is provided at both ends with positive decommuntation gear.
Advantage is：The end that handle is dialled in commutation sets stopping means, limits commutation and dials the angle that handle rotates, further carries
The high reliability of commutation, and stopping means and commutation dial the position that handle be connected and set ball, reduce friction, commutate flexibly.
Further, spring seat includes limiting plate and position-restricted housing, and limiting plate is provided with a column, spacing shell
Body is provided with a pair of the ducts corresponding with column, and position-restricted housing is set in limiting plate.
Advantage is:Limiting plate is provided with column, and position-restricted housing is provided with the duct corresponding with column, and both are set in one
Rise, on the one hand realize assembling simply, on the other hand make spring seat more firm.
Further, the first commutation movable contact spring and the second commutation movable contact spring are U-shaped.
Further, the first commutation movable contact spring, the second commutation movable contact spring and commutation are provided with little spring between dialling handle.
Advantage is：First commutation movable contact spring, the second commutation movable contact spring and commutation are respectively provided with spring between dialling handle, ensure that and change
It is high to the close contact between movable contact spring and terminal, reliability.
Further, a pair of projections, the first commutation movable contact spring and the second commutation movable contact spring point are provided with commutation pedestal
Wei Yu not be on projection.
Further, projection is provided at both ends with slope.
Advantage is：A pair of projections, and the first commutation movable contact spring and the second commutation movable contact spring difference position are set on commutation pedestal
Side thereon, avoid the first commutation movable contact spring, the second commutation movable contact spring from connecting the first terminal with Second terminal, play isolation
Effect, further improve the reliability of commutation.
Further, push rod is hollow-core construction, is connected between push rod and interior pedestal by main spring, one end of main spring
Offseted with interior pedestal, the other end is arranged in push rod, and is offseted with the end of button connects bar.
Further, button is provided with button back-off opposing upper and lower, and described push rod is provided with and button back-off phase
The mounting hole of cooperation.
Advantage is：The hollow infinite place of push rod, main spring is refilled after loading pedestal, assembling is simple, and cost is lower, and reliability is more
Height, and automation can be led；The connection of button and push rod is by the way of button back-off so that assembling is simpler, is not easily disconnected from.
Brief description of the drawings
Fig. 1, electric tool reversing switch stereogram
Fig. 2, electric tool reversing switch explosive view
Fig. 3, electric tool reversing switch profile
Fig. 4, electric tool commutation pedestal and the first terminal of reversing switch and the integrative-structure top view of Second terminal
The positive stereogram of handle is dialled in Fig. 5, driving lever and commutation
The reversed isometric view of handle is dialled in Fig. 6, driving lever and commutation
Fig. 7, electric tool reversing switch pedestal enlarged drawing
Fig. 8, electric tool reversing switch stopping means stereogram
Fig. 9, electric tool reversing switch limiting plate stereogram
Figure 10, the reversing switch of electric tool dial state diagram when handle does not rotate
Figure 11, electric tool reversing switch driving lever rotate forward when state diagram
Figure 12, electric tool reversing switch driving lever reversion when state diagram
1st, button 2, button connects bar 3, pedestal 4, interior pedestal 5, push rod 6, commutation pedestal 7, commutation are dialled handle 8, dialled
Bar 9, connecting shaft 10, first movable contact spring 11, second that commutates commutate movable contact spring 12, the first terminal 13, Second terminal 14, the
Three terminals 15, forth terminal 16, locating slot 17, V-arrangement movable contact spring 18, movable contact 19, stationary contact 20, power supply terminal 21,
It is location-plate 22, stopping means 23, spring seat 24, ball 25, spring 26, limiting plate 27, position-restricted housing 28, vertical
Post 29, little spring 30, projection 31, main spring 32, button back-off 33, mounting hole 34, dividing plate 35, resistance trimming reed 36,
Alignment circuit plate
Embodiment
As shown in figs 1-9, the reversing switch of electric tool, including button 1, pedestal 3, the interior pedestal positioned at the lower section of pedestal 3
4th, the push rod 5 being connected in interior pedestal 4 with button 1 is arranged on, the commutation pedestal 6 of the interior top of pedestal 4 is arranged on, is arranged on pedestal 3
Handle 7, the driving lever 8 being arranged on outside pedestal 3, connection commutation group handle 7 and driving lever are dialled in internal and above commutation pedestal 6 commutation
8 connecting shaft 9, the first commutation commutation movable contact spring 11 of movable contact spring 10 and second being fastened on commutation group handle 7, it is characterised in that
It is described commutation pedestal 6 in be provided with one end stretch out pedestal 3 the first terminal 12 and Second terminal 13, other the one of the first terminal 12
Individual end and two other end of Second terminal 13 are in commutation pedestal 6, and the other end portion of the first terminal 12 is located at
Two other end centre position of Second terminal 13, the first terminal 12, Second terminal 13 and commutation pedestal 6 are integrated knot
Structure, in actual production, the first terminal 12 and Second terminal 13 are molded into commutation pedestal 6, Ran Houzai by the way of injection
Its entirety is assembled in pedestal, dividing plate 34, the both ends of dividing plate 34 and base are provided between the interior pedestal 4 and commutation pedestal 6
Locating slot 16 is provided between seat 3, third terminal 14 and forth terminal 15, third terminal 14 and forth terminal are provided with pedestal 3
15 end set is hinged on pedestal 3, in forth terminal and is provided with V-arrangement movable contact spring 17, the movable contact of V-arrangement movable contact spring 17
It is in contact with the end of third terminal 14, another end of third terminal 14 and forth terminal 15 extends through locating slot 16
Onto commutation pedestal 6, and the end extended on commutation pedestal 6 is arranged on commutation pedestal with the first terminal 12 and Second terminal 13
At grade, the top of commutation pedestal 6 is provided with location-plate 21, is provided with the interior pedestal 4 and V-arrangement for end in 6
The corresponding power supply terminal 20 of another movable contact of movable contact spring 17.Resistance trimming reed 35 is provided with push rod 5, is provided with pedestal 3
The position of the alignment circuit plate 36 corresponding with resistance trimming reed 35, the first terminal 12 and Second terminal 13 can exchange.
The stopping means 22 that the end of handle 7 sets restricted commutation to dial the slewing area of handle 7 is dialled in commutation, and stopping means 22 is set
On location-plate 21, and limited block 37 is set, it is ensured that the stabilization of stopping means 22 on location-plate 21.
Stopping means 22 includes spring seat 23, and the cylinder chamber of one end open is provided with spring seat 23, is set in cylinder chamber
Have ball 24, be provided with spring 25 between ball 24 and the bottom of cylinder chamber, described commutation dial handle end open up it is fluted, with rolling
Pearl is engaged.
Spring seat 23 includes limiting plate 26 and position-restricted housing 27, and limiting plate 26 is provided with a column 28, spacing
Housing 27 is provided with a pair of the ducts corresponding with column 28, and position-restricted housing 27 is set in limiting plate 26.
The first commutation commutation movable contact spring 11 of movable contact spring 10 and second is U-shaped.
First commutation movable contact spring 10, second commutates and is provided with little spring 29 between movable contact spring 11 and commutation group handle 7.
A pair of projections 30 are provided with commutation pedestal 6, the first commutation commutation movable contact spring 11 of movable contact spring 10 and second distinguishes position
In on projection 30.Projection 30 is provided at both ends with slope.
Push rod is hollow-core construction, between push rod 5 and interior pedestal 4 by main spring 31 be connected, one end of main spring 31 with it is interior
Pedestal is offseted, and the other end is arranged in push rod 5, and is offseted with button connects bar 2, limits the stroke of main spring 31.
Button 1 is provided with button back-off 32 opposing upper and lower, and described push rod 5 is provided with what is be engaged with button back-off 32
Mounting hole 33.
The section of button back-off 32 is right angled triangle, and a right-angle side of right angled triangle is located on button connects bar 2,
Another right-angle side is vertical with button connects bar 2.
The operation principle of the reversing switch of electric tool：Button 1 is pressed, push rod promotes, and main spring 31 compresses, and push rod 5 pushes away
Dynamic V-arrangement movable contact spring 17, a movable contact of V-arrangement movable contact spring 17 and the contact of power supply terminal 20, the contact of third terminal 14
Separated with another movable contact of V-arrangement movable contact spring so that third terminal 14 and forth terminal 15 disconnect, power on.Push rod
The whole process of promotion, V-arrangement movable contact spring 17 are in contact with power supply terminal 20.Release button 1, push rod 5 reset, V-arrangement movable contact spring
17 movable contact and power supply terminal 20 separates, another movable contact contact of third terminal 14 and V-arrangement movable contact spring 17 so that the
Three terminals 14 are connected with forth terminal 15, and power supply disconnects.When driving lever 8 is not stirred, as shown in Figure 10, the first commutation He of movable contact spring 10
Second commutation movable contact spring 11 is located on projection 30, and the arc portion that ball 24 dials handle 7 with commutation is in contact.
After power on, driving lever 8 is stirred, commutation is dialled handle 7 and rotated with driving lever 8 around connecting shaft 9, the first commutation He of movable contact spring 10
Second commutation movable contact spring dials the synchronous rotary of handle 7 with commutation, and is slided from projection 30, as shown in figure 11, the first commutation movable contact spring
10 connection the first terminals 12 and third terminal 14, the second commutation movable contact spring 11 connect Second terminal 13 and forth terminal 15, now
Electric tool rotates forward, and commutation dials handle 7 and is in positive gear.
Driving lever 8 is reversely stirred, commutation is dialled handle 7 and rotated around connecting shaft 9, the first commutation commutation movable contact spring of movable contact spring 10 and second
11 dial the synchronous rotary of handle 7 with commutation, and two commutation movable contact springs press through projection 30, and little spring 29 is compressed, the first commutation movable contact spring
10 and second commutation movable contact spring 11 rotate to the other side of projection 30 respectively, now, as shown in figure 12, the first commutation movable contact spring
10 connection the first terminals 12 and forth terminal 15, the second commutation movable contact spring 11 connect Second terminal 13 and third terminal 14, now
Electric tool reversely rotates, and commutation dials handle 7 and is in reverse gear.
Embodiment described above is merely to illustrate technical scheme, rather than its limitations；Although with reference to foregoing
The present invention is described in detail embodiment, it will be understood by those within the art that：It still can be to foregoing
Technical scheme described in embodiment is modified, or carries out equivalent substitution to which part or all technical characteristic；And this
A little modifications or substitutions, the essence of appropriate technical solution is not set to depart from the scope of various embodiments of the present invention technical scheme.
Claims (11)
1. the reversing switch of electric tool, including button (1), the button connects bar (2) being connected with button (1), pedestal (3), position
Interior pedestal (4) below pedestal (3), it is arranged on the push rod (5) being connected in interior pedestal (4) with button (1), is arranged on interior pedestal
(4) commutation pedestal (6) above, it is arranged on that pedestal (3) is internal and commutation above commutation pedestal (6) is dialled handle (7), set
Commutated in the outside driving lever (8) of pedestal (3), connection and dial the connecting shaft (9) of handle (7) and driving lever (8), be fastened on to commutate and dial handle (7)
On the first commutation movable contact spring (10) and the second commutation movable contact spring (11), it is characterised in that the commutation pedestal (6) is interior to be provided with
The first terminal (12) and Second terminal (13) of pedestal (3), an end of the first terminal (12) and Second terminal are stretched out in one end
(13) two ends are in commutation pedestal (6), and an end of the first terminal (12) is located at Second terminal (13) two
The centre position of end, the distance of two ends of a threshold value Second terminal (13) of the first terminal (12) is equal, institute
State the first terminal (12), Second terminal (13) and commutation pedestal (6) to be structure as a whole, the 3rd end is provided with the pedestal (3)
Sub (14) and forth terminal (15), pedestal (3) both ends are provided with locating slot (16), and the one of third terminal (14) and forth terminal (15)
Individual end is separately positioned on pedestal (3), and another end is each passed through locating slot (16) and extended on commutation pedestal (6),
And the end extended on commutation pedestal (6) is arranged in commutation pedestal (6) with the first terminal (12) and Second terminal (13)
End is hinged is provided with V-arrangement movable contact spring (17) at grade, in forth terminal (15), and one of V-arrangement movable contact spring (17) is dynamic
Contact (18) is in contact with the stationary contact (19) of third terminal (14), is provided with the pedestal (3) another with V-arrangement movable contact spring (17)
The corresponding power supply terminal of an outer movable contact (20), location-plate (21) is provided with above commutation pedestal (6), location-plate (21)
Top is provided with the stopping means (22) dialled handle (7) with commutation and be engaged.
2. the reversing switch of electric tool according to claim 1, it is characterised in that the first terminal (12), second
Terminal (13) and commutation pedestal (6) make integrative-structure by the way of injection.
3. the reversing switch of electric tool according to claim 2, it is characterised in that the stopping means (22) includes bullet
Spring pedestal (23), the cylinder chamber of one end open is provided with spring seat (23), is provided with ball (24) in cylinder chamber, ball (24) and
Spring (25) is provided between the bottom of cylinder chamber, described commutation dials handle (7) end and offers arc groove, with ball (24) phase
Coordinate.
4. the reversing switch of electric tool according to claim 3, it is characterised in that the spring seat (23) includes limit
Position base (26) and position-restricted housing (27), limiting plate (26) are provided with a column (28), and position-restricted housing (27) is provided with standing
The hollow cylinder of a pair of corresponding bottom openings of post (28), position-restricted housing (27) are set in limiting plate (26).
5. the reversing switch of electric tool according to claim 4, it is characterised in that the first commutation movable contact spring (10)
It is U-shaped with the second commutation movable contact spring (11).
6. the reversing switch of electric tool according to claim 5, it is characterised in that the first commutation movable contact spring
(10), the second commutation movable contact spring (11) and commutation are provided with little spring (29) between dialling handle (7).
7. the reversing switch of electric tool according to claim 6, it is characterised in that set on described commutation pedestal (6)
A pair of projections (30) are equipped with, the first commutation movable contact spring (10) and the second commutation movable contact spring (11) are located on projection (30) respectively.
8. the reversing switch of electric tool according to claim 7, it is characterised in that described projection (30) is with first
In commutation movable contact spring (10) or the second commutation movable contact spring (11) slope is provided at both ends with vertical direction.
9. the reversing switch of the electric tool according to claim 1-8 any claims, it is characterised in that described pushes away
Bar is hollow-core construction, is connected between push rod (5) and interior pedestal (4) by main spring (31), one end and the interior base of main spring (31)
Seat is offseted, and the other end is arranged in push rod (5), and is offseted with the end of button connects bar (2).
10. the reversing switch of electric tool according to claim 9, it is characterised in that described button (1) is provided with upper
Relative button back-off (32) down, described push rod (5) are provided with the mounting hole (33) being engaged with button back-off (32).
11. the reversing switch of electric tool according to claim 10, it is characterised in that described button back-off (32) is
Right angled triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610779856.2A CN106409552B (en) | 2016-08-31 | 2016-08-31 | the reversing switch of electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610779856.2A CN106409552B (en) | 2016-08-31 | 2016-08-31 | the reversing switch of electric tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106409552A CN106409552A (en) | 2017-02-15 |
| CN106409552B true CN106409552B (en) | 2018-04-06 |
Family
ID=58000301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610779856.2A Active CN106409552B (en) | 2016-08-31 | 2016-08-31 | the reversing switch of electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106409552B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109951027A (en) * | 2019-04-06 | 2019-06-28 | 卧龙电气驱动集团股份有限公司 | A kind of novel built-in driving direct-flow vibrating |
| CN111292975A (en) * | 2020-03-20 | 2020-06-16 | 苏州华之杰电讯股份有限公司 | Gear reversing mechanism applied to electric tool switch |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN203118792U (en) * | 2013-04-03 | 2013-08-07 | 苏州华之杰电讯有限公司 | Switch in electric tool |
| CN205984712U (en) * | 2016-08-31 | 2017-02-22 | 张家港华捷电子有限公司 | Electric tool's commutator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5448943B2 (en) * | 2010-03-10 | 2014-03-19 | 佐鳥エス・テック株式会社 | Trigger switch |
-
2016
- 2016-08-31 CN CN201610779856.2A patent/CN106409552B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN203118792U (en) * | 2013-04-03 | 2013-08-07 | 苏州华之杰电讯有限公司 | Switch in electric tool |
| CN205984712U (en) * | 2016-08-31 | 2017-02-22 | 张家港华捷电子有限公司 | Electric tool's commutator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106409552A (en) | 2017-02-15 |
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