CN106409552A - Reversing switch of electric tool - Google Patents
Reversing switch of electric tool Download PDFInfo
- Publication number
- CN106409552A CN106409552A CN201610779856.2A CN201610779856A CN106409552A CN 106409552 A CN106409552 A CN 106409552A CN 201610779856 A CN201610779856 A CN 201610779856A CN 106409552 A CN106409552 A CN 106409552A
- Authority
- CN
- China
- Prior art keywords
- terminal
- commutation
- pedestal
- movable contact
- contact spring
- 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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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
Landscapes
- Push-Button Switches (AREA)
Abstract
The invention discloses a reversing switch of an electric tool. The reversing switch comprises a button, a base, an inner base, a push rod, a reversing base and a reversing shift handle, wherein the push rod is connected with the button; the reversing base is arranged above the inner base; the reversing handle is arranged above the reversing base; a first terminal of which one end extends out of the base and a second terminal of which one end extends out of the base are arranged in the reversing base; one end part of the first terminal is positioned between two end parts of the second terminal; the first terminal, the second terminal and the reversing base are integrated; one end part of a third terminal and one end part of a fourth terminal are arranged on the base respectively; the other end part of the third terminal and the other end part of the fourth terminal pass through a positioning groove and extend onto the reversing base; the end parts extending onto the reversing base are on the same plane as end parts of the first terminal and the second terminal in the reversing base; a V-shaped movable contact spring is hinged to the fourth terminal; a power supply terminal corresponding to the V-shaped movable contact spring is arranged in the base; a positioning plate is arranged above the reversing base; and a limiting device which is connected with the reversing shift handle is arranged above the positioning plate. The switch is easy to assemble, low in cost and accurate in reversing, has high reliability, and can be switched on automatically.
Description
Technical field
The present invention relates to a kind of electric tool switch, especially there is the electric tool switch of reversing arrangement.
Background technology
The reversing switch of conventional electric tool, including button, pedestal, be arranged on the push rod be connected with button in pedestal,
The commutation being arranged on base interior is dialled handle, is arranged on driving lever outside pedestal, connects commutation and dial the connecting shaft of handle and driving lever, setting
The commutation terminal group in pedestal, be fastened on commutation dial handle on commutation pedestal contact first commutation movable contact spring and second change
To movable contact spring, the terminal that commutates is respectively assembled on pedestal, and the reversing switch assembling of this structure is difficult, and fraction defective is high, high cost,
The phenomenon of loose contact easily occurs during switch operation, leads to the reliability switching low.
Content of the invention
The problem to be solved in the present invention is：A kind of assembling of offer is simple, reliability is high, low cost electric tool commutation is opened
Close.
For solving the above problems, the technical solution used in the present invention is：The reversing switch of electric tool, including button, base
Seat, be located at interior pedestal below pedestal, be arranged in interior pedestal with the push rod that button is connected, be arranged on commutation above interior pedestal
Pedestal, the commutation being arranged on base interior and being located above commutation pedestal are dialled handle, are arranged on driving lever pedestal outside, connect and commutate
Dial connecting shaft, the first commutation movable contact spring being fastened on commutation group handle and the second commutation movable contact spring of handle and driving lever, its feature exists
In it is characterised in that described commutation pedestal in be provided with the first terminal and the Second terminal that pedestal is stretched out in one end, the first terminal
Two other end of another one end and Second terminal is all in commutation pedestal, and the other end portion of the first terminal is located at
Two other end centre position of Second terminal, described the first terminal, Second terminal and commutation pedestal are structure as a whole, described
Third terminal and forth terminal are provided with pedestal, pedestal two ends are provided with locating slot, an end of third terminal and forth terminal
Portion is separately positioned on pedestal, and another one end extends respectively on commutation pedestal through locating slot, and extends to commutation base
End on seat is arranged on the end commutated in pedestal at grade with the first terminal and Second terminal, and commutate the upper of pedestal
Side is provided with location-plate, hinged in forth terminal be provided with V-arrangement movable contact spring, the movable contact of V-arrangement movable contact spring and the end of third terminal
Portion contacts, and is provided with power supply terminal corresponding with V-arrangement movable contact spring another one movable contact in described pedestal.
Further, the first terminal (12), Second terminal and commutation pedestal make one 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 in pedestal it is achieved that assembling is simple
Single, low cost, it is respectively provided with dividing plate and location-plate so that the position of terminal is fixed above and below commutation pedestal, in commutation
The reliability of reversing switch is improve, contact is good in operation.
Further, the stopping means of the end setting restricted commutation group handle slewing area of handle are dialled in commutation.
Further, stopping means include spring seat, are provided with the cylinder chamber of one end open, cylindricality intracavity in spring seat
Be provided with ball, between ball and the bottom of cylinder chamber, be provided with spring, described commutation dial handle end open up fluted, with ball phase
Cooperation, the two ends of groove are provided with positive decommuntation gear.
Advantage is：Dial the end setting stopping means of handle in commutation, limit commutation and dial the angle that handle rotates, carry further
The high reliability of commutation, and stopping means dial, with commutation, the position setting ball that handle is connected, decrease friction, commutate flexible.
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 duct 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 achieve 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 dialled and are provided with little spring between handle.
Advantage is：First commutation movable contact spring, the second commutation movable contact spring and commutation are dialled and are respectively provided with spring it is ensured that changing between handle
To the close contact between movable contact spring and terminal, reliability is high.
Further, commutation pedestal is provided with a pair of projection, the first commutation movable contact spring and the second commutation movable contact spring divide
Wei Yu not be on projection.
Further, the two ends of projection are provided with slope.
Advantage is：On commutation pedestal, a pair of projection is set, and the first commutation movable contact spring and the second commutation movable contact spring position respectively
Side thereon, it is to avoid the first terminal and Second terminal are connected by the first commutation movable contact spring, the second commutation movable contact spring, play isolation
Effect, further improves the reliability of commutation.
Further, push rod is hollow-core construction, passes through main spring and be connected between push rod and interior pedestal, one end of main spring
Offset with interior pedestal, the other end is arranged in push rod, and offset 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 installing hole of cooperation.
Advantage is：The hollow infinite place of push rod, refills main spring after loading pedestal, assembling is simple, and cost is lower, and reliability is more
Height, and automatization can be led；The mode being connected by button back-off of button and push rod, so that assembling is simpler, is not easily disconnected from.
Brief description
Fig. 1, the reversing switch axonometric chart of electric tool
Fig. 2, the reversing switch explosive view of electric tool
Fig. 3, the reversing switch profile of electric tool
Fig. 4, the commutation pedestal of the reversing switch of electric tool and the integrative-structure top view of the first terminal and Second terminal
The positive axonometric chart 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, the pedestal enlarged drawing of the reversing switch of electric tool
Fig. 8, the stopping means axonometric chart of the reversing switch of electric tool
Fig. 9, the limiting plate axonometric chart of the reversing switch of electric tool
State diagram when handle does not rotate dialled by Figure 10, the reversing switch of electric tool
State diagram when Figure 11, the reversing switch driving lever rotating forward of electric tool
State diagram when Figure 12, the reversing switch driving lever reversion of electric tool
1st, button 2, button connects bar 3, pedestal 4, interior pedestal 5, push rod 6, commutation pedestal 7, commutation are dialled handle 8, are dialled
Bar 9, connecting shaft 10, first commutation movable contact spring 11, second commutation 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,
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, installing hole 34, dividing plate 35, resistance trimming reed 36,
Alignment circuit plate
Specific embodiment
As shown in figs 1-9, the reversing switch of electric tool, including button 1, pedestal 3, the interior pedestal positioned at pedestal 3 lower section
4th, it is arranged on the push rod 5 be connected with button 1 in interior pedestal 4, be arranged on the commutation pedestal 6 of interior pedestal 4 top, be arranged on pedestal 3
Commutation that is internal and being located at commutation pedestal 6 top is dialled handle 7, is arranged on driving lever 8 pedestal 3 outside, connects commutation group handle 7 and driving lever
8 connecting shaft 9, be fastened on the first commutation movable contact spring 10 that commutation dials on handle 7 and the second commutation movable contact spring 11 it is characterised in that
It is provided with, in described commutation pedestal 6, the first terminal 12 and the Second terminal 13 that pedestal 3 is stretched out in one end, other the one of the first terminal 12
Two other end of individual end and Second terminal 13 is all 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, described the first terminal 12, Second terminal 13 and commutation pedestal 6 are integrated knot
The first terminal 12 and Second terminal 13, in actual production, are molded into commutation pedestal 6, Ran Houzai by the way of injection by structure
It is integrally assembled in pedestal, between described interior pedestal 4 and commutation pedestal 6, is provided with dividing plate 34, the two ends of dividing plate 34 and base
It is provided with locating slot 16 between seat 3, in pedestal 3, be provided with third terminal 14 and forth terminal 15, third terminal 14 and forth terminal
15 end is arranged on pedestal 3, hinged in forth terminal is provided with V-arrangement movable contact spring 17, the movable contact of V-arrangement movable contact spring 17
Contact with the end of third terminal 14, the another one end of third terminal 14 and forth terminal 15 extends through locating slot 16
To on commutation pedestal 6, and the end extending 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 and V-arrangement in described interior pedestal 4 for end in 6
The corresponding power supply terminal 20 of movable contact spring 17 another one movable contact.Resistance trimming reed 35 is provided with push rod 5, pedestal 3 is provided with
The alignment circuit plate 36 corresponding with resistance trimming reed 35, the position of the first terminal 12 and Second terminal 13 can exchange.
The stopping means 22 of end setting restricted commutation group handle 7 slewing area of handle 7 are dialled in commutation, and stopping means 22 are arranged
On location-plate 21, and on location-plate 21 setting limited block 37 it is ensured that the stablizing of stopping means 22.
Stopping means 22 include spring seat 23, are provided with the cylinder chamber of one end open in spring seat 23, and cylindricality intracavity sets
Have ball 24, between ball 24 and the bottom of cylinder chamber, be provided with spring 25, described commutation dial handle end open up fluted, with rolling
Pearl is matched.
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 duct corresponding with column 28, and position-restricted housing 27 is set in limiting plate 26.
First commutation movable contact spring 10 and the second commutation movable contact spring 11 are U-shaped.
First commutation movable contact spring 10, second commutation movable contact spring 11 and commutation are dialled and are provided with little spring 29 between handle 7.
A pair of projection 30, the first commutation movable contact spring 10 and the second commutation movable contact spring 11 position respectively are provided with commutation pedestal 6
On projection 30.The two ends of projection 30 are provided with slope.
Push rod be hollow-core construction, between push rod 5 and interior pedestal 4 pass through main spring 31 be connected, one end of main spring 31 with interior
Pedestal offsets, and the other end is arranged in push rod 5, and offsets 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 and is matched with button back-off 32
Installing 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：Press the button 1, push rod promotes, 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
Separate so that third terminal 14 and forth terminal 15 disconnect with the another one movable contact of V-arrangement movable contact spring, power on.Push rod
The whole process promoting, V-arrangement movable contact spring 17 is all contacted with power supply terminal 20.Release button 1, push rod 5 resets, V-arrangement movable contact spring
17 movable contact and power supply terminal 20 separate, and third terminal 14 contacts so that the with the another one movable contact of V-arrangement movable contact spring 17
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 movable contact spring 10 He
Second commutation movable contact spring 11 is located on projection 30, and the arc portion that ball 24 dials handle 7 with commutation contacts.
After power on, stir driving lever 8, commutation is dialled handle 7 and rotated around connecting shaft 9 with driving lever 8, the first commutation movable contact spring 10 He
Second commutation movable contact spring dials handle 7 synchronous rotary with commutation, and slides 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 connection Second terminal 13 and forth terminal 15, now
Electric tool rotates forward, and commutation is dialled handle 7 and is in positive gear.
Reversely stir driving lever 8, commutation is dialled handle 7 and rotated around connecting shaft 9, the first commutation movable contact spring 10 and the second commutation movable contact spring
11 dial handle 7 synchronous rotary 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 connection Second terminal 13 and third terminal 14, now
Electric tool reversely rotates, and commutation is dialled handle 7 and is in reverse gear.
Embodiment described above is merely to illustrate technical scheme, is not intended to limit；Although with reference to aforementioned
Embodiment has been described in detail to the present invention, it will be understood by those within the art that：It still can be to aforementioned
Technical scheme described in embodiment is modified, or carries out equivalent to wherein part or all of technical characteristic；And this
A little scopes changed or replace, do not make the essence disengaging various embodiments of the present invention technical scheme of appropriate technical solution.
Claims (11)
1. the reversing switch of electric tool, the button connects bar (2) being connected with button (1) including button (1), pedestal (3), position
In the interior pedestal (4) below pedestal (3), it is arranged on the push rod (5) be connected with button (1) in interior pedestal (4), is arranged on interior pedestal
(4) handle (7), setting are dialled in the commutation pedestal (6) above, the commutation being arranged on pedestal (3) inside and being located above commutation pedestal (6)
In the outside driving lever (8) of pedestal (3), connect to commutate 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 described commutation is provided with pedestal (6)
The first terminal (12) and Second terminal (13), an end of the first terminal (12) and the Second terminal of pedestal (3) is stretched out in one end
(13) two ends are all 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, described pedestal (3) is provided with the 3rd end
Sub (14) and forth terminal (15), pedestal (3) two 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 one end is each passed through locating slot (16) and extends in commutation pedestal (6),
And the end extending in commutation pedestal (6) is arranged in commutation pedestal (6) with the first terminal (12) and Second terminal (13)
At grade, forth terminal (15) is above hinged to be provided with V-arrangement movable contact spring (17), and one of V-arrangement movable contact spring (17) is moved for end
Contact (18) is contacted with the stationary contact (19) of third terminal (14), is provided with another with V-arrangement movable contact spring (17) in described pedestal (3)
The corresponding power supply terminal (20) of an outer movable contact, the top of commutation pedestal (6) is provided with location-plate (21), location-plate (21)
Top is provided with dials, with commutating, the stopping means (22) that handle (7) matches.
2. electric tool switch according to claim 1 is it is characterised in that described the first terminal (12), Second terminal
(13) and commutation pedestal (6) using injection by the way of make integrative-structure.
3. the reversing switch of electric tool according to claim 2 is it is characterised in that described stopping means (22) include bullet
Spring pedestal (23), is provided with the cylinder chamber of one end open in spring seat (23), cylindricality intracavity is provided with ball (24), ball (24) and
It is provided with spring (25), described commutation is dialled handle (7) end and offered arc groove, with ball (24) phase between the bottom of cylinder chamber
Cooperation.
4. the reversing switch of electric tool according to claim 3 is it is characterised in that described spring seat (23) includes limit
Position base (26) and position-restricted housing (27), limiting plate (26) is provided with a column (28), and position-restricted housing (27) is provided with and stands
The hollow cylinder of a pair of corresponding bottom opening of post (28), position-restricted housing (27) is set in limiting plate (26).
5. electric tool according to claim 4 reversing switch it is characterised in that described first commutation movable contact spring (10)
It is U-shaped with the second commutation movable contact spring (11).
6. electric tool according to claim 5 reversing switch it is characterised in that described first commutation movable contact spring
(10), the second commutation movable contact spring (11) and commutation are dialled and are provided with little spring (29) between handle (7).
7. the reversing switch of electric tool according to claim 6 is it is characterised in that set on described commutation pedestal (6)
It is equipped with a pair of projection (30), 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 is it is characterised in that described projection (30) is with first
Two ends on vertical direction in commutation movable contact spring (10) or the second commutation movable contact spring (11) are provided with slope.
9. the reversing switch of the electric tool according to claim 1-8 any claim is it is characterised in that described pushes away
Bar is hollow-core construction, passes through main spring (31) and be connected between push rod (5) and interior pedestal (4), one end of main spring (31) and interior base
Seat offsets, and the other end is arranged in push rod (5), and offsets with the end of button connects bar (2).
10. the reversing switch of electric tool according to claim 9 is it is characterised in that described button (1) is provided with
Down relative to button back-off (32), described push rod (5) is provided with the installing hole (33) matching with button back-off (32).
The reversing switch of 11. electric tools according to claim 10 is 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 true CN106409552A (en) | 2017-02-15 |
| CN106409552B 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) |
Cited By (1)
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011183523A (en) * | 2010-03-10 | 2011-09-22 | Satori S-Tech Co Ltd | Trigger switch |
| 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 |
-
2016
- 2016-08-31 CN CN201610779856.2A patent/CN106409552B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011183523A (en) * | 2010-03-10 | 2011-09-22 | Satori S-Tech Co Ltd | Trigger switch |
| 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 |
Cited By (1)
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106409552B (en) | 2018-04-06 |
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