CN109243882B - Switch box device and power tool - Google Patents
Switch box device and power tool Download PDFInfo
- Publication number
- CN109243882B CN109243882B CN201811124653.5A CN201811124653A CN109243882B CN 109243882 B CN109243882 B CN 109243882B CN 201811124653 A CN201811124653 A CN 201811124653A CN 109243882 B CN109243882 B CN 109243882B
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- China
- Prior art keywords
- switch
- button
- deflector rod
- switch box
- extension
- 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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- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 230000001960 triggered effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
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
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D75/00—Accessories for harvesters or mowers
Abstract
The application discloses a switch box device and a power tool, wherein the switch box device comprises a body defining a containing cavity, a switch arranged in the containing cavity and a deflector rod rotatably arranged relative to the body, the switch comprises a switch button which can be operated to rotate to trigger the switch, the deflector rod can be operated to rotate relative to the body to enable the switch button to rotate, and the rotating shaft of the deflector rod is perpendicular to the rotating shaft of the switch button. The switch box device increases the travel of the switch kept on, so that the switch keeps on for a longer time.
Description
Technical Field
The present application relates to a switch box device and a power tool.
Background
Generally, a switch box for controlling the on-off of the whole machine is required to be arranged on the power tool, the switch is arranged in a manner of being perpendicular to the switch box, and the length of the switch box is increased due to the arrangement; in addition, the trigger vertically presses the switch button, so that the switch is turned off as soon as the trigger is released, so that the switch is kept on for a short time, and is easy to power off, so that the use is unreliable; furthermore, the force required to press the button to trigger the switch is large, making the operation uncomfortable.
Disclosure of Invention
The application aims to provide a switch box device and a power tool, wherein the switch box device increases the travel of keeping a switch on, so that the switch keeps on for a longer time.
To achieve one of the above objects, an embodiment of the present application provides a switch box apparatus including a body defining a receiving chamber, a switch provided in the receiving chamber, a lever rotatably provided with respect to the body, the switch including a switch button operable to be rotated to trigger the switch, wherein the lever is operable to be rotated with respect to the body to cause the switch button to rotate, and a rotation axis of the lever is perpendicular to a rotation axis of the switch button.
As a further improvement of an embodiment of the present application, the switch is a rocker switch or a micro switch.
As a further improvement of an embodiment of the present application, the switch box device further includes an intermediate button movably disposed on the body, the intermediate button being operable to abut the lever, and the intermediate button being depressible to cause the lever to rotate.
As a further improvement of an embodiment of the present application, the intermediate button is operable to move linearly with respect to the body, and a direction of linear movement of the intermediate button is parallel to a rotational axis of the switch button.
As a further improvement of an embodiment of the present application, a reset member for resetting the intermediate button is provided between the intermediate button and the body.
As a further improvement of an embodiment of the present application, the body has a first surface on which the intermediate button is mounted, and the rotation axis of the switch button is perpendicular to the first surface.
As a further improvement of an embodiment of the present application, the switch box means further includes at least one trigger movably provided to the body, and if and only after the intermediate button is pressed to the bottom to cause the lever to rotate a certain angle, operating either trigger causes the lever to continue to rotate to cause the switch button to continue to rotate to trigger the switch.
As a further improvement of an embodiment of the present application, the lever includes a first extension extending in a first direction and a second extension extending in a second direction angled to the first direction, the first extension being abutted against the intermediate button, the second extension being abutted against the switch button.
As a further improvement of an embodiment of the present application, the length of the first extension is greater than the length of the second extension.
As a further improvement of an embodiment of the present application, the stroke of the switch is smaller than the stroke of the second extension portion, and the stroke of the second extension portion is smaller than the stroke of the trigger.
As a further improvement of an embodiment of the application, the first direction and the second direction form an obtuse angle.
As a further improvement of an embodiment of the present application, a plane passing through the rotation axis of the lever and parallel to the direction of linear movement of the intermediate button is defined as a second plane, and the end of the first extension and the end of the second extension are located on the same side of the second plane when the lever is in the released state.
As a further improvement of an embodiment of the present application, the switch has a side surface adjacent to the switch knob, the body has a support bottom surface for supporting the switch, a surface perpendicular to the support bottom surface and parallel to the rotation axis of the lever is defined as a third plane, and an angle α formed by the third plane and the side surface ranges from 15 ° to 25 °.
As a further improvement of an embodiment of the application, the body is fixedly arranged on a deflector rod bracket, the deflector rod is rotatably arranged on the deflector rod bracket, and the deflector rod bracket is provided with a space for the deflector rod to rotate.
To achieve one of the above objects, an embodiment of the present application further provides a power tool, wherein: the power tool comprises an operating handle and the switch box device according to any one of the technical schemes, wherein the switch box device is arranged on the operating handle.
As a further improvement of an embodiment of the present application, the power tool is a mower.
Compared with the prior art, the application has the beneficial effects that: since the rotation surface of the shift lever is perpendicular to the rotation surface of the switch button, the shift lever moves a relatively long distance when the shift lever is released, and the switch button can move a small distance. Thus, the switch box arrangement increases the travel over which the switch remains on, so that the switch remains on for a longer period of time.
Drawings
FIG. 1 is a schematic perspective view of an operating handle and switch box assembly of a power tool in accordance with one embodiment of the present application;
FIG. 2 is an enlarged cross-sectional view of the operating handle and switch box assembly of FIG. 1;
FIG. 3 is an enlarged fragmentary rotational schematic view at A in FIG. 2;
FIG. 4 is a vertical cross-sectional view of the operating handle and switch box assembly of FIG. 1 with the intermediate button in a depressed-to-bottom condition;
FIG. 5 is an enlarged partial schematic view at B in FIG. 4;
FIG. 6 is a vertical cross-sectional view of the operating handle and switch box assembly of FIG. 1 with the lever rotated and the switch button in a triggered state;
FIG. 7 is an enlarged partial schematic view at C in FIG. 6;
FIG. 8 is a schematic diagram showing a comparison of two states of the toggle lever in an initial state and the trigger switch;
FIG. 9 is a schematic diagram of a switch;
fig. 10 is a schematic diagram of a switch according to another embodiment of the application.
Detailed Description
The present application will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the application and structural, methodological, or functional modifications of these embodiments that may be made by one of ordinary skill in the art are included within the scope of the application.
In the various illustrations of the application, certain dimensions of structures or portions may be exaggerated relative to other structures or portions for convenience of illustration, and thus serve only to illustrate the basic structure of the inventive subject matter.
In addition, terms such as "upper", "above", "lower", "below", and the like, used herein to denote spatially relative positions are used for convenience of description to describe one element or feature relative to another element or feature as illustrated in the figures. The term spatially relative position may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Moreover, it should be understood that, although the terms first, second, etc. may be used herein to describe various elements or structures, these described elements should not be limited by the above terms. The above terms are used only to distinguish these descriptive objects from each other. For example, a first extension may be referred to as a second extension, and likewise, a second extension may be referred to as a first extension, without departing from the scope of this application.
Referring to fig. 1, the embodiment of the present application discloses a power tool including an operation handle 10 and a switch box device, the switch box device being provided to the operation handle 10. The power tool may be a garden tool or other type of equipment or machine, especially other type of equipment or machine that requires dual safety protection. In particular, in this embodiment, the power tool is a mower. Mowers also typically include a housing, a motor disposed within the housing, and a cutting head driven by the motor. The cutting head is a cutting blade or a mowing line, and in particular, in this embodiment, the cutting head is a cutting blade. The operating handle 10 is connected to the housing.
The mower further comprises a traveling mechanism arranged on the shell, and specifically the traveling mechanism comprises four traveling wheels, wherein the four traveling wheels are rotatably arranged on the shell. And the four travelling wheels are symmetrically arranged in pairs.
With further reference to fig. 2-9, the switch box assembly includes a body 12 defining a receiving cavity, a switch 14 disposed in the receiving cavity, a lever 16 rotatably disposed relative to the body 12, the switch 14 including a switch button 18 operable to be rotated to trigger the switch 14, wherein the body 12 is integrally disposed with the operating handle 10. The lever 16 is operable to rotate relative to the body 12 to cause rotation of the shift knob 18, with the axis of rotation 20 of the lever 16 being perpendicular to the axis of rotation 21 of the shift knob 18, as shown in fig. 4, and both the lever 16 and the shift knob 18 being rotatable about their respective axes of rotation, e.g., the axis of rotation of the lever 16 being perpendicular to the direction of the page and the axis of rotation of the shift knob 18 being parallel to the direction of the page (shown in phantom). The rotation surface of the lever 16, i.e., the surface of the lever 16 formed in the rotation direction thereof, is perpendicular to the rotation axis 20 of the lever 16. The rotation surface of the switch button 18, i.e., the surface of the switch button 18 formed in the rotation direction thereof, the rotation surface of the switch button 18 is perpendicular to the rotation axis 21 of the switch button 18.
In the preferred embodiment, the rotation axis 20 of the lever 16 is perpendicular to the rotation axis 21 of the switch button 18, so that when the lever 16 is released, the lever moves a relatively long distance, and the switch button 18 can move a small distance. As shown in the figure, the shift lever is moved by 8.1mm, the switch button is moved by 3.2mm, and 3.2mm is the stroke of the switch 14 kept on. Thus, the switch box arrangement increases the travel over which the switch 14 remains on, so that the switch 14 remains on for a longer period of time. That is, after the lever 16 is rotated to the bottom, the activated state of the switch button 18 is maintained even if the lever 16 is slightly moved (e.g., the lever 16 is reversed by the user's loose hand).
Further, the switch box device further comprises an intermediate button 22 movably arranged on the body 12, the intermediate button 22 is abutted against the shift lever 16, and the intermediate button 22 can be pressed to cause the shift lever 16 to rotate. Specifically, the intermediate button 22 is operable to move linearly with respect to the body 12, and the direction of linear movement of the intermediate button 22 is perpendicular to the rotational plane of the switch button 18, that is, the direction of linear movement of the intermediate button 22 is parallel to the rotational axis 21 of the switch button 18.
A reset member (not shown) for resetting the intermediate button 22 is provided between the intermediate button 22 and the main body 12. When the intermediate button 22 is released, the reset member urges the intermediate button 22 to return to the initial position. In the preferred embodiment, the resetting member is a compression spring, and the intermediate button 22 includes a pressing portion and an abutment portion fixedly connected to the pressing portion, the pressing portion being pressed by an operator, and the abutment portion being capable of abutting against the lever 16. The compression spring is sleeved on the abutting part, one end of the compression spring abuts against the middle button 22, and the other end of the compression spring abuts against the body 12. The middle button 22 is provided with a receiving groove in which a part of the compression spring is received.
The body 12 has a first surface 24 on which the intermediate button 22 is mounted, and the switch button 18 has an abutting trigger surface 23, the trigger surface 23 being perpendicular to the first surface 24. So configured, the length of the body 12 is reduced, resulting in a more compact structure.
The switch box assembly also includes at least one trigger 26 movably disposed on the body 12. In the preferred embodiment, for convenience of operation, the switch box device is provided with 4 triggers 26 at different positions on different sides, however, only one trigger 26 or more than one trigger 26 may be provided.
When the intermediate button 22 is depressed to the bottom to cause the lever 16 to rotate through an angle, operation of either trigger 26 causes continued rotation of the lever 16 to cause continued rotation of the switch button 18 to activate the switch 14. Thus, when the switch 14 is to be triggered, the switch 14 can be triggered to be turned on only by pressing the middle button 22 and then operating any trigger 26, so that the requirement of dual protection of safety regulations is met.
Further, the lever 16 includes a first extension 28 extending in a first direction and a second extension 30 extending in a second direction that is angled from the first direction, the first extension 28 abutting the intermediate button 22 and the second extension 30 abutting the switch button 18. Preferably, the first direction and the second direction form an obtuse angle.
In addition, the length of the first extension 28 is greater than the length of the second extension 30. Further increasing the travel of the first extension 28. Further, the travel of switch 14 is less than the travel of second extension 30, and the travel of second extension 30 is less than the travel of trigger 26.
When the intermediate button 22 is pressed against the stop, the second extension 30 of the lever 16 just touches the switch button 18 or is over-pressed, but does not trigger the switch 14 to turn on, at which time pressing any trigger 26 continues to rotate the lever 16, and when the trigger position is reached, the switch 14 turns on, at which time the trigger 26 continues to press a distance, i.e. the distance to turn on is maintained. Conversely, when the switch 14 is triggered to operate, even if the hand of the user holding the trigger 26 is slightly loosened or shaken, the stable triggering of the switch 14 is maintained, and the phenomenon that the power tool stops operating does not occur.
A plane that defines a direction of linear movement of the intermediate button 22 through the rotation axis 20 of the lever 16 is a second plane P2, and the end of the first extension 28 and the end of the second extension 30 are located on the same side of the second plane P2 when the lever 16 is in the released state. I.e. when the intermediate button 22 is not pressed, the end of the first extension 28 and the end of the second extension 30 are located on the same side of the second plane P2.
In addition, the switch 14 has a side surface adjacent to the switch knob 18, the body 12 has a support bottom surface 32 for supporting the switch 14, a surface perpendicular to the support bottom surface 32 and parallel to the rotation axis 20 of the lever 16 is defined as a third plane P3, and an angle α formed by the third plane P3 and the side surface 33 ranges from 15 degrees to 25 degrees. The switch button 18 is adjacent to the support bottom surface 32 such that the switch 14 is disposed obliquely with respect to the plane of rotation of the lever 16 such that the force required to press the intermediate button 22 is reduced, improving operator comfort.
The body 12 is fixedly provided with a deflector rod bracket 34, the deflector rod 16 is rotatably arranged on the deflector rod bracket 34, and the deflector rod bracket 34 is provided with a space for the deflector rod 16 to rotate.
As shown in fig. 9, the switch 14 in the preferred embodiment is a rocker switch, however, the switch may be configured as a micro switch 38 as shown in fig. 10, the micro switch 38 includes a contact 40 and a switch button 42, and when the switch button 42 is pressed, the contact 40 abutting against the switch button 42 is pressed, thereby triggering the micro switch 38.
It should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is for clarity only, and that the skilled artisan should recognize that the embodiments may be combined as appropriate to form other embodiments that will be understood by those skilled in the art.
The above list of detailed descriptions is only specific to practical embodiments of the present application, and they are not intended to limit the scope of the present application, and all equivalent embodiments or modifications that do not depart from the spirit of the present application should be included in the scope of the present application.
Claims (11)
1. A switch box assembly comprising a body defining a receiving cavity, a switch disposed in the receiving cavity, a lever rotatably disposed relative to the body, the switch including a switch button operable to rotate to trigger the switch, characterized in that the lever is operable to rotate relative to the body to cause the switch button to rotate, and the lever has a rotational axis perpendicular to the rotational axis of the switch button;
the switch box device further comprises an intermediate button movably arranged on the body, the intermediate button can be in abutting connection with the deflector rod in an operating mode, and the intermediate button can be pressed to enable the deflector rod to rotate;
the intermediate button is operable to move linearly relative to the body, and the direction of linear movement of the intermediate button is parallel to the axis of rotation of the switch button;
the switch box device also comprises at least one trigger movably arranged on the body, and if and only after the middle button is pressed to the bottom to drive the deflector rod to rotate a certain angle, any trigger can be operated to drive the deflector rod to rotate continuously so as to drive the switch button to rotate continuously to trigger the switch;
the deflector rod comprises a first extension part extending along a first direction and a second extension part extending along a second direction which is angled to the first direction, wherein the first extension part is abutted with the middle button, and the second extension part can be abutted with the switch button;
a plane passing through the rotation axis of the deflector rod and parallel to the rectilinear movement direction of the intermediate button is defined as a second plane (P2), and the end of the first extension and the end of the second extension are located on the same side of the second plane when the deflector rod is in the released state.
2. The switch box assembly of claim 1, wherein: the switch is a rocker switch or a micro switch.
3. The switch box assembly of claim 1, wherein: and a reset piece for resetting the middle button is arranged between the middle button and the body.
4. The switch box assembly of claim 1, wherein: the body has a first surface on which the intermediate button is mounted, and the switch button has a trigger surface perpendicular to the first surface.
5. The switch box assembly of claim 1, wherein: the length of the first extension is greater than the length of the second extension.
6. The switch box assembly of claim 1, wherein: the travel of the switch is less than the travel of the second extension, and the travel of the second extension is less than the travel of the trigger.
7. The switch box assembly of claim 1, wherein: the first direction and the second direction form an obtuse angle.
8. The switch box assembly of claim 1, wherein: the body is fixedly provided with a deflector rod support, the deflector rod is rotatably arranged on the deflector rod support, and the deflector rod support is provided with a space for the deflector rod to rotate.
9. The switch box assembly of claim 1, wherein: the switch has a side surface adjacent to the switch button, the body has a support bottom surface for supporting the switch, a surface perpendicular to the support bottom surface and parallel to the rotation axis of the shift lever is defined as a third plane, and an angle alpha formed by the third plane and the side surface ranges from 15 degrees to 25 degrees.
10. A power tool, characterized by: the power tool includes an operation handle and the switch box device according to any one of claims 1 to 9, the switch box device being provided to the operation handle.
11. The power tool of claim 10, wherein: the power tool is a mower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811124653.5A CN109243882B (en) | 2018-09-26 | 2018-09-26 | Switch box device and power tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811124653.5A CN109243882B (en) | 2018-09-26 | 2018-09-26 | Switch box device and power tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109243882A CN109243882A (en) | 2019-01-18 |
| CN109243882B true CN109243882B (en) | 2023-11-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811124653.5A Active CN109243882B (en) | 2018-09-26 | 2018-09-26 | Switch box device and power tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109243882B (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109243882A (en) | 2019-01-18 |
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