CN209544217U - A kind of rotary switch and hand electric screwdriver - Google Patents
A kind of rotary switch and hand electric screwdriver Download PDFInfo
- Publication number
- CN209544217U CN209544217U CN201920163739.2U CN201920163739U CN209544217U CN 209544217 U CN209544217 U CN 209544217U CN 201920163739 U CN201920163739 U CN 201920163739U CN 209544217 U CN209544217 U CN 209544217U
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- spring
- inner support
- driving lever
- switch
- sides
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Abstract
The utility model relates to a kind of rotary switch and hand electric screwdrivers, belong to power tools technology field.The switch includes the switch ring being sleeved on outside inner support, the switch ring extends driving lever inwardly, the spring card slot of corresponding driving lever two sides is provided on the inner support, the spring card slot is provided with the circumferential spring that abutting end contradicts the driving lever two sides respectively, and the spring bearer plate of restricted spring is housed on the inner support.For the utility model due to the outer cover part with ring instead of pairing, part is few, easy to assembly.Due to switch ring driving lever be installed in the notch of a pair of of spring, and spring constraint casing be connected inner support on, therefore can guarantee switch ring have good reset trend, and then guarantee rotary switch reseting performance.And inner support dependency structure and spring bearer plate structure are simple, shaping dies good manufacturability.
Description
Technical field
The utility model relates to a kind of switch, especially a kind of rotary switch also relates to the hand using rotary switch
Formula electric screwdriver is held, power tools technology field is belonged to.
Background technique
Hand electric screwdriver is a kind of common electric tool.201420576231.2 electronic disclosed in number Chinese patent
Screwdriver includes: motor, handle casing, transmission device, output shaft, and the motor, transmission device are arranged in the handle casing
In, the transmission device can drive the output shaft to pivot by axis of first axle；The electric screwdriver further include: can control
The Operation switch of the operation of motor, the Operation switch at least have an operation portion for user's operation, all operations
Portion in the circumferential direction of the first axle lie farthest away two between radian be at least 60 degree.Operation switch therein is real
Matter is by changing its rotary switch for screwing direction controlling electric screwdriver rotation direction.In order to allow the switch to remain multiple
Position trend, which employs the spring reset structures similar with 2016/0271772 U.S. Patent application of Publication No., and the structure is not
It only needs to be limited in inner support, other end conflict by one end and keeps reset trend in two pairs of four springs of switch ring, and
And need to use the external enclosing element of butted structure, not only part is more, assembly is inconvenient, but also elastic force position is acted on from operating force
Farther out, manipulation feel is not good enough for point.
Utility model content
The purpose of this utility model is that: in view of the above-mentioned problems of the prior art, proposing that a kind of structure is simple, assembling
Conveniently, reliable rotary switch is manipulated, while provides the hand electric screwdriver using the switch.
In order to reach the goals above, the rotary switch of the utility model includes the switch ring being sleeved on outside inner support, institute
It states switch ring and extends driving lever inwardly, the spring card slot of corresponding driving lever two sides, the spring card slot are provided on the inner support
It is provided with the circumferential spring that abutting end contradicts the driving lever two sides respectively, the spring pressure of restricted spring is housed on the inner support
Plate.
Hand electric screwdriver using the rotary switch includes tubular casing, and the front placement of the casing is fixed on
The front end of the motor of inner support, the inner support is equipped with front cover；It is equipped with and is sleeved on outside inner support between the front cover and casing
Ring is switched, battery and main control board are disposed in the casing, rear cover is installed in the rear end of the casing；The switch ring court
Inside extend driving lever, the spring card slot of corresponding driving lever two sides is provided on the inner support, the spring card slot is provided with abutting end
The circumferential spring of the driving lever two sides is contradicted respectively, and the spring bearer plate of restricted spring is housed on the inner support.
For the utility model due to the outer cover part with ring instead of pairing, part is few, easy to assembly.Due to switching ring
Circle driving lever is installed in the notch of a pair of of spring, and spring constraint therefore can guarantee to switch on the inner support that casing is connected
Ring has good reset trend, and then guarantees the reseting performance of rotary switch.And inner support dependency structure and spring pressure
Hardened structure is simple, shaping dies good manufacturability.
Detailed description of the invention
The utility model will be further described below with reference to the accompanying drawings.
Fig. 1 is the dimensional decomposition structure diagram of the utility model one embodiment.
Fig. 2 is Fig. 1 embodiment without the schematic perspective view before switch ring.
Fig. 3 is the schematic perspective view after Fig. 1 embodiment installation switch ring.
Specific embodiment
Embodiment one
The hand electric screwdriver basic structure of the present embodiment is as shown in Figure 1 to Figure 3, before tubular casing (not shown)
Portion disposes inner support 2, is fixed with motor in the inner support 2.The front end of inner support 2 is equipped with front cover 5, disposes battery and master in casing
Control circuit board and rear end and rear cover be installed, the tool heads 2-1 driven for motor by reduction gearing mechanism in front cover 5, these with show
Have that technology is identical, therefore is not described in detail.Equipped with the switch ring 4 being sleeved on outside inner support 2, the switch ring 4 between front cover 5 and casing
Extend driving lever 4-1 inwardly, and a pair of switches reversed column 4-2 is extended in the position opposite with driving lever 4-1 inwardly.It is opened on inner support 2
There is the spring card slot of corresponding driving lever two sides, spring card slot is provided with the circumferential spring 3 that abutting end contradicts the two sides driving lever 4-1 respectively,
Spring bearer plate 1 is housed, which has in the middle part of circular arc rib 1-1, the circular arc rib 1-1 radially extended on inner support 2
The screw hole flange 1-3 and circumferential rib 1-2 of the two sides screw hole flange 1-3, to be fixed on interior branch by radial screw when assembling
After on frame 2, axial constraint is constituted to spring 3.
When assembly, by switch ring 4 on inner support 2, it is packed into spring 3, then fix spring bearer plate 1, very
It is convenient.Due to the reversed column in switch ring and the positive and negative switch device contacts on inner support, pass through rotary switch ring
The pros that electric screwdriver can be realized in circle turn control, very convenient, and the driving lever two sides for switching ring are contacted with spring respectively,
Therefore good reset function is made it have.Compared with prior art, the electric screwdriver of the present embodiment is structurally reasonable, part subtracts
Less, easy to assembly, forming technology is good.
In addition to the implementation, the utility model can also have other embodiments.It is all to use equivalent replacement or equivalent change
The technical solution to be formed is changed, the protection scope of the requires of the utility model is all fallen within.
Claims (6)
1. a kind of rotary switch, it is characterised in that: including the switch ring being sleeved on outside inner support, the switch ring prolongs inwardly
Driving lever is stretched out, the spring card slot of corresponding driving lever two sides is provided on the inner support, the spring card slot is provided with abutting end difference
The circumferential spring of the driving lever two sides is contradicted, the spring bearer plate of restricted spring is housed on the inner support.
2. rotary switch according to claim 1, it is characterised in that: the spring bearer plate is kept off by the circular arc radially extended
The circumferential rib of screw hole flange and screw hole flange two sides in the middle part of side, the circular arc rib is constituted.
3. rotary switch according to claim 2, it is characterised in that: the switch ring position opposite with driving lever is inwardly
Extend a pair of switches reversed column.
4. a kind of hand electric screwdriver, including tubular casing, the motor of inner support is fixed in the front placement of the casing,
The front end of the inner support is equipped with front cover；Opening outside inner support is sleeved on it is characterized by: being equipped between the front cover and casing
Cyclization circle, battery and main control board are disposed in the casing, and rear cover is installed in the rear end of the casing；The switch ring is inwardly
Extend driving lever, the spring card slot of corresponding driving lever two sides is provided on the inner support, the spring card slot is provided with abutting end point
The circumferential spring of the driving lever two sides is not contradicted, and the spring bearer plate of restricted spring is housed on the inner support.
5. hand electric screwdriver according to claim 4, it is characterised in that: the spring bearer plate is by radially extending
The circumferential rib of screw hole flange and screw hole flange two sides in the middle part of circular arc rib, the circular arc rib is constituted.
6. hand electric screwdriver according to claim 5, it is characterised in that: the switch ring is opposite with driving lever
Extend a pair of switches reversed column inwardly in position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920163739.2U CN209544217U (en) | 2019-01-30 | 2019-01-30 | A kind of rotary switch and hand electric screwdriver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920163739.2U CN209544217U (en) | 2019-01-30 | 2019-01-30 | A kind of rotary switch and hand electric screwdriver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209544217U true CN209544217U (en) | 2019-10-25 |
Family
ID=68272408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920163739.2U Active CN209544217U (en) | 2019-01-30 | 2019-01-30 | A kind of rotary switch and hand electric screwdriver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209544217U (en) |
-
2019
- 2019-01-30 CN CN201920163739.2U patent/CN209544217U/en active Active
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