CN108320947B - Switch starting mechanism of electric tool and electric tool - Google Patents
Switch starting mechanism of electric tool and electric tool Download PDFInfo
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- CN108320947B CN108320947B CN201810273698.2A CN201810273698A CN108320947B CN 108320947 B CN108320947 B CN 108320947B CN 201810273698 A CN201810273698 A CN 201810273698A CN 108320947 B CN108320947 B CN 108320947B
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- switch
- trigger
- starting
- speed
- electric tool
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- 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
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Push-Button Switches (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
The invention discloses a switch starting mechanism of an electric tool, which comprises a triggering structure for triggering a plurality of switches respectively, wherein the triggering structures are driven by a trigger, so that the aim of starting before speed regulation is fulfilled, the operation is convenient, the composition of the switch starting mechanism is simplified, and the cost is reduced.
Description
Technical Field
The invention belongs to the technical field of switch design of electric tools, and particularly relates to a switch starting mechanism of an electric tool and the electric tool.
Background
The electric tool is a working tool driven by electric power, can be divided into industrial tools, living tools, garden tools and the like according to the application range, and is convenient for working and production, reduces the labor amount and improves the working efficiency, so that the electric tool is widely used in various fields.
At present, most electric tools are started up through a trigger direct start switch and operate according to the rotation speed set by a system, usually, the electric tools only have one operation speed at the initial stage of starting, and different working rotation speeds are required to be set according to different conditions in the actual use process, so that a speed regulating device is required to be additionally arranged for regulating according to the use requirement.
Taking an electric chain saw as an example, at present, a researcher and a research staff additionally adds a speed regulating switch on the basis of the traditional electric chain saw according to the requirement to control the rotating speed of a motor, and because the stress magnitude, the direction and the travel of the speed regulating switch and a starting switch are different, the speed regulating switch is usually selected to be independent of the starting switch and is independently driven, so that the whole electric chain saw has at least two control switches.
Therefore, in view of the above problems, it is necessary to propose a novel switch control mode to achieve the purpose of controlling a plurality of control switches by one trigger, which is convenient to operate, and meanwhile, reduces the use of switch operating components, simplifies the composition of the switch starting mechanism, and reduces the cost.
Disclosure of Invention
In view of this, the invention provides a switch starting mechanism of an electric tool and an electric tool, wherein a trigger structure is arranged corresponding to each switch, and a plurality of trigger structures are driven by a trigger, so that the aim of starting before speed regulation is fulfilled, the operation is convenient, the composition of the switch starting mechanism is simplified, and the cost is reduced.
According to the invention, the switch starting mechanism of the electric tool comprises a triggering structure for triggering a plurality of switches respectively, wherein the switches at least comprise a starting switch and a speed regulating switch, and the plurality of triggering structures are driven by a trigger;
the trigger structure comprises a start trigger structure and a speed regulation trigger structure, the trigger is pressed, the trigger drives the start trigger structure to act to gradually press down the start switch, the electric tool is started, the trigger is continuously pressed, the trigger drives the speed regulation trigger structure to press down the speed regulation switch, the rotating speed is gradually increased, and in the speed regulation process, the start trigger structure is always pressed on the start switch.
Preferably, the stroke of the start switch is smaller than the stroke of the speed regulating switch.
Preferably, the trigger is rotatably arranged on the electric tool through a rotating shaft, the starting trigger structure and the speed regulation trigger structure are respectively positioned at two ends of the trigger, and the starting trigger structure and/or the speed regulation trigger structure are integrally formed at two ends of the trigger or are independent structures which are linked with the trigger.
Preferably, the starting triggering structure is a switch stress converter which is rotatably arranged in the electric tool, the switch stress converter is in contact with one end of the trigger, the trigger moves and toggles the switch stress converter to swing towards one side of the starting switch to press the starting switch in the initial starting stage, the starting switch is started, and the trigger keeps pressing and abutting with the switch stress converter all the time when continuing to move.
Preferably, the switch stress converter comprises a swing rod and a switch pressing piece arranged at the front end of the swing rod, one side of the switch pressing piece, which is in contact with the trigger, is of an arc-shaped structure, an inclined surface is formed on one side of the switch pressing piece, which is in contact with the starting switch, and when the switch stress converter swings, the inclined surface is continuously in contact with the starting switch, so that the swinging acting force is converted into the pressing acting force to realize the starting.
Preferably, the switch pressing piece is of a chicken-mouth-shaped structure, the outer side of the chicken-mouth-shaped structure is contacted with the trigger, and the inner side of the chicken-mouth-shaped structure is contacted with the starting switch.
Preferably, the speed regulation triggering structure is integrally formed on the trigger, and the inner side of the speed regulation triggering structure, which is in contact with the speed regulation switch, is of an arc-shaped structure.
Preferably, the switch starting mechanism further comprises a reset spring for driving the trigger to reset, the starting switch and the speed regulating switch are self-reset switches, and after external force on the trigger is removed, all parts of structures on the switch starting mechanism are automatically reset.
In order to solve the problems, the invention also discloses an electric tool which comprises a switch starting mechanism.
Compared with the prior art, the switch starting mechanism of the electric tool has the advantages that:
according to the invention, the trigger structures are arranged corresponding to the switches, and the trigger structures are driven by one trigger, so that the aim of starting before speed regulation is fulfilled, the operation is convenient, the composition of the switch starting mechanism is simplified, and the cost is reduced.
Through setting up the switch atress converter, change the motion of trigger into the perpendicular effort of pressing each switch, be applicable to the different switch control of each atress size, direction, stroke, it is convenient to regulate and control.
In addition, through setting up reset spring, the whole quick-witted switch all can automatic re-setting after the power that acts on the trigger is got rid of, the braking of being convenient for under emergency, the braking is convenient, the security performance is high.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of an internal switch actuation mechanism of an electric chain saw.
Fig. 2 is a schematic diagram of the switch starting mechanism in a non-starting state.
Fig. 3 is a schematic view of the switch actuating mechanism after actuation.
Fig. 4 and 5 are schematic diagrams of a switch actuating mechanism in embodiment 2.
Names of the corresponding parts represented by numerals or letters in the drawings:
1. casing 2, switch starting mechanism
21. A starting switch 22, a speed regulating switch 23, a trigger 24, a starting trigger structure 25, a speed regulating trigger structure 26, a rotating shaft 241, a swing rod 242 and a switch pressing piece
Detailed Description
As described in the background art section, the conventional electric tool is provided with a plurality of switches for controlling start and speed regulation, respectively, which is inconvenient to operate. Therefore, the invention aims at the defects in the prior art, and provides a switch starting mechanism of an electric tool and the electric tool, wherein the trigger structures are arranged corresponding to all the switches, and the trigger structures are driven by one trigger, so that the aim of starting before regulating speed is fulfilled, the operation is convenient, the composition of the switch starting mechanism is simplified, and the cost is reduced.
The technical scheme of the present invention will be clearly and completely described in the following detailed description. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1 to 3, as shown in the drawings, a switch starting mechanism of an electric tool includes a triggering structure for triggering a plurality of switches respectively, wherein the switches of the electric tool at least include a starting switch 21 and a speed regulating switch 22.
The trigger structure is divided into a start trigger structure 24 and a speed regulation trigger structure 25 according to different switches triggered by the trigger structure, the trigger 23 is pressed, the start trigger structure 24 acts to gradually press down the start switch 21, the electric tool is started, the trigger 23 is continuously pressed, the speed regulation trigger structure 25 presses down the speed regulation switch 22, the rotating speed is gradually increased, and in the speed regulation process, the start trigger structure 24 is always pressed on the start switch 21, so that the electric tool is always in an electrified start state.
The starting switch 21 is usually in a one-key opening mode, the stroke is relatively short, and the speed regulating switch needs to regulate different rotating speeds according to the magnitude of the pressing force and the pressing degree of the button, so that the stroke of the speed regulating switch is larger than that of the starting switch, when the starting switch is started by adopting a trigger, the starting switch must be ensured to be started first, the speed regulating switch is started later, the starting trigger structure 24 is in contact with the starting switch 21 in a specific settable initial state, the speed regulating trigger structure 25 is a certain distance from the speed regulating switch 22, or the starting switch and the speed regulating switch are started simultaneously, the starting initial stage of the speed regulating switch is only low speed, and the purpose of increasing the rotating speed is realized by continuously pressing the speed regulating switch. To achieve this object, the present invention optionally provides trigger structures corresponding to the two switches at both ends of the trigger so as to transmit the opening force of the trigger to the switches.
The trigger 23 is rotatably disposed on the casing 1 of the electric tool through a rotation shaft 26, the start trigger structure 24 and the speed regulation trigger structure 25 are respectively disposed at two ends of the trigger 23, in this embodiment, preferably, the speed regulation trigger structure 25 is integrally formed at one end of the trigger 23, the start trigger structure 24 is a switch stress converter independent of the trigger 23, wherein the switch stress converter is rotatably disposed in the electric tool, and the switch stress converter contacts one end of the trigger 23. In this embodiment, the start switch is set downward, and the speed regulation switch is set upward. Pressing the trigger 23 to swing in the anticlockwise direction, starting the initial stage, moving the trigger 23 to toggle the switch stress converter to swing towards the side of the starting switch 21 to press the starting switch 21, starting the starting switch 21, keeping pressing and pressing contact with the switch stress converter all the time when the trigger 23 continues to move, contacting the other end of the trigger with the speed regulating switch, gradually pressing the speed regulating switch, regulating the force for pressing the trigger according to the required rotating speed, and controlling the pressing degree of the speed regulating switch
The switch stress converter comprises a swing rod 241 and a switch pressing piece 242 arranged at the front end of the swing rod 241, is arranged on one side of the starting switch 21 and is positioned between the trigger 23 and the starting switch 21, and the acting force of the trigger 23 is transmitted to the starting switch 21 through the switch stress converter. Preferably, the side of the switch pressing member 242 contacting the trigger 23 has an arc-shaped structure, which is convenient for driving. The switch pressing piece 242 is provided with an inclined surface formed on one side contacted with the starting switch 21, and when the switch stress converter swings, the inclined surface is continuously contacted with the starting switch 21 to convert the swinging acting force into the pressing acting force to realize starting. The switch stress converter is arranged above the trigger 23 in the embodiment, and can be arranged below the trigger in other embodiments, so that the purposes of starting the switch and always keeping the switch pressed in the speed regulation stage can be achieved, and the specific structural form and the setting position are not limited.
Preferably, the switch pressing member 242 has a chicken-mouth-shaped structure, the outer side of which contacts the trigger 23, and the inner side of which contacts the start switch 21, and the specific structure is not limited.
In this embodiment, the speed regulation trigger structure 25 is integrally formed on the trigger 23, and the inner side of the speed regulation trigger structure 25 contacting with the speed regulation switch 22 is in an arc structure. The trigger rotates anticlockwise to drive the trigger rod to move downwards to press the speed regulating switch, and the speed regulating switch is controlled to be pressed according to different pressing forces of the trigger, so that the rotating speed is regulated.
In addition, the switch starting mechanism further includes a return spring (not shown) for driving the trigger 23 to return, and the return spring may be an extension spring having one end fixed to the casing 1 and the other end connected to the trigger 23, or a torsion spring provided at the rotation shaft 26, without limitation.
The starting switch 21 and the speed regulating switch 22 are self-resetting switches, and after the external force on the trigger 23 is removed, all the parts of the structure on the mechanism are automatically reset to the shutdown state, so that the emergency situation can be handled, the braking is convenient, and the safety performance is high.
The working principle of the invention is as follows:
as shown in fig. 2 and 3, in the initial state, the start switch 21 and the speed regulating switch 22 are in an open state, the switch stress converter is in an initial position, and the trigger 23 is in a maximum reset state. When the machine is started, the trigger 23 is pulled upwards, the trigger 23 rotates anticlockwise, the toggle switch stress converter on the right side of the trigger 23 rotates upwards, the swinging acting force is converted into the pressing acting force to press the starting switch 21, the starting switch 21 is started, the whole machine starts to operate at a low speed, at the moment, the trigger 23 is pulled upwards, the trigger lever on the left side of the trigger presses the speed regulating switch 22, the current of the whole machine is gradually increased, the operating speed is increased, after the trigger 23 is loosened, the trigger is reset under the acting force of the reset spring, and other parts are reset to an initial state in sequence.
Besides, the trigger 23 can adopt a moving mode besides a rotating mode, and the relative positions of the starting switch, the speed regulating switch and the trigger can be adjusted according to specific needs, so that the aim of starting before regulating speed is fulfilled.
Example 2
As shown in fig. 4 and 5, the rest is the same as embodiment 1, except that the starting trigger structure 24 is integrally formed on the trigger 23 and moves synchronously with the trigger 23, at this time, the starting switch 21 is disposed at the left side, in order to convert the rotation acting force into the pressing acting force, the starting trigger structure 24 can be disposed as two-stage structure, one side of the front stage portion contacting with the starting switch is disposed as an inclined plane structure, the starting switch is gradually pressed down by the action of the inclined plane, and after the starting switch is pressed in place, the rear stage portion is of an arc structure, so that the rear stage portion is ensured to be pressed tangentially with the starting switch all the time.
In addition, in other embodiments, the starting triggering structure and/or the speed regulating triggering structure may be integrally formed on two ends of the trigger or the starting triggering structure and the speed regulating triggering structure are independent structures linked with the trigger, and the specific form is not limited.
In summary, the invention discloses a switch starting mechanism of an electric tool, which comprises a triggering structure for triggering a plurality of switches respectively, wherein the triggering structures are driven by a trigger, so that the aim of starting before speed regulation is fulfilled, the operation is convenient, the composition of the switch starting mechanism is simplified, and the cost is reduced.
Through setting up the switch atress converter, change the motion of trigger into the perpendicular effort of pressing each switch, be applicable to the different switch control of each atress size, direction, stroke, it is convenient to regulate and control.
In addition, through setting up reset spring, the complete machine switch can automatic re-setting after the power that acts on the trigger is got rid of, and the braking under emergency of being convenient for, the braking is convenient, and the security performance is high.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. The switch starting mechanism of the electric tool is characterized by comprising a triggering structure for triggering a plurality of switches respectively, wherein the switches at least comprise a starting switch and a speed regulating switch, and the plurality of triggering structures are driven by a trigger;
the trigger structure comprises a starting trigger structure and a speed regulation trigger structure, the trigger is pressed, the trigger drives the starting trigger structure to act to gradually press down the starting switch, the electric tool is started, the trigger is continuously pressed down, the trigger drives the speed regulation trigger structure to press down the speed regulation switch, the rotating speed is gradually increased, and the starting trigger structure is always pressed on the starting switch in the speed regulation process;
the trigger is rotatably arranged on the electric tool through a rotating shaft, the starting trigger structure and the speed regulation trigger structure are respectively positioned at two ends of the trigger, and the starting trigger structure and/or the speed regulation trigger structure are integrally formed at two ends of the trigger or are independent structures in linkage with the trigger;
the starting trigger structure is a switch stress converter which is rotatably arranged in the electric tool, the switch stress converter is in contact with one end of the trigger, the trigger is moved to toggle the switch stress converter to swing towards one side of the starting switch to press the starting switch in the initial starting stage, the starting switch is started, and the trigger always keeps pressing contact with the switch stress converter when continuing to move;
the switch stress converter comprises a swing rod and a switch pressing piece arranged at the front end of the swing rod, wherein one side of the switch pressing piece, which is in contact with the trigger, is of an arc-shaped structure, an inclined surface is formed on one side of the switch pressing piece, which is in contact with the starting switch, and when the switch stress converter swings, the inclined surface is continuously in contact with the starting switch, and the swinging acting force is converted into the pressing acting force to realize the starting;
the switch pressing piece is of a chicken-mouth-shaped structure, the outer side of the chicken-mouth-shaped structure is in contact with the trigger, and the inner side of the chicken-mouth-shaped structure is in contact with the starting switch;
the switch starting mechanism further comprises a reset spring for driving the trigger to reset, the starting switch and the speed regulating switch are self-reset switches, and after external force on the trigger is removed, all parts of structures on the switch starting mechanism are automatically reset.
2. The switch-actuating mechanism of a power tool of claim 1, wherein the travel of the actuating switch is less than the travel of the speed switch.
3. The switch-starting mechanism of claim 2, wherein the speed-regulating trigger structure is integrally formed on the trigger, and an inner side of the speed-regulating trigger structure contacting the speed-regulating switch is in an arc structure.
4. A power tool comprising the switch actuation mechanism of any one of claims 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810273698.2A CN108320947B (en) | 2018-03-29 | 2018-03-29 | Switch starting mechanism of electric tool and electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810273698.2A CN108320947B (en) | 2018-03-29 | 2018-03-29 | Switch starting mechanism of electric tool and electric tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108320947A CN108320947A (en) | 2018-07-24 |
| CN108320947B true CN108320947B (en) | 2023-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810273698.2A Active CN108320947B (en) | 2018-03-29 | 2018-03-29 | Switch starting mechanism of electric tool and electric tool |
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| CN (1) | CN108320947B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113196968B (en) * | 2021-05-28 | 2022-09-20 | 莱克电气绿能科技(苏州)有限公司 | Garden trimming tool |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1287369A (en) * | 1999-09-03 | 2001-03-14 | 希尔蒂股份公司 | On/off switch for electric tool and speed regulator |
| CN202014473U (en) * | 2011-01-31 | 2011-10-26 | 苏州金莱克精密机械有限公司 | Hand-held electric tool with assembly structure |
| CN202014472U (en) * | 2011-01-31 | 2011-10-26 | 苏州金莱克精密机械有限公司 | Handheld electric tool with linked switch |
| CN102577847A (en) * | 2011-01-18 | 2012-07-18 | 苏州金莱克精密机械有限公司 | Handheld electric tool with improved trigger |
| CN103337392A (en) * | 2013-05-21 | 2013-10-02 | 浙江亚特电器有限公司 | Switch on-off mechanism of electric tool |
-
2018
- 2018-03-29 CN CN201810273698.2A patent/CN108320947B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1287369A (en) * | 1999-09-03 | 2001-03-14 | 希尔蒂股份公司 | On/off switch for electric tool and speed regulator |
| CN102577847A (en) * | 2011-01-18 | 2012-07-18 | 苏州金莱克精密机械有限公司 | Handheld electric tool with improved trigger |
| CN202014473U (en) * | 2011-01-31 | 2011-10-26 | 苏州金莱克精密机械有限公司 | Hand-held electric tool with assembly structure |
| CN202014472U (en) * | 2011-01-31 | 2011-10-26 | 苏州金莱克精密机械有限公司 | Handheld electric tool with linked switch |
| CN103337392A (en) * | 2013-05-21 | 2013-10-02 | 浙江亚特电器有限公司 | Switch on-off mechanism of electric tool |
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| Publication number | Publication date |
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| CN108320947A (en) | 2018-07-24 |
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Effective date of registration: 20190416 Address after: 215009 No. 55 Shilin Road, Huguan District, Suzhou High-tech Industrial Development Zone, Jiangsu Province Applicant after: KINGCLEAN ELECTRIC GREEN TECHNOLOGY (SUZHOU) Co.,Ltd. Address before: 215009 No. 1 Xiangyang Road, New District, Jiangsu, Suzhou Applicant before: KINGCLEAN ELECTRIC Co.,Ltd. |
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