CN104948492A - Electric tool having delay mechanism - Google Patents
Electric tool having delay mechanism Download PDFInfo
- Publication number
- CN104948492A CN104948492A CN201410208496.1A CN201410208496A CN104948492A CN 104948492 A CN104948492 A CN 104948492A CN 201410208496 A CN201410208496 A CN 201410208496A CN 104948492 A CN104948492 A CN 104948492A
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- electric tool
- door
- moving part
- driving component
- closed position
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Abstract
An electric tool comprises a first drive member, a door and a delay mechanism. The first drive member can active to drive the electric tool through starting/stopping a moving member of the electric tool. The door can move between an opening position and a closing position, and the door is arranged in that the door can enable a user to contact with the moving member of the electric tool when the door is in the opening position, and the door can prevent a user from contacting with the moving member of the electric tool when the door is in the closing position. The delay mechanism is used for delaying the door moving from the closing position to the opening position after the first drive member makes the moving member of the electric tool start.
Description
Technical field
The present invention relates to a kind of electric tool of such as ventilating fan and so on.The present invention be more particularly directed to but be not limited only to a kind of electric tool with the door adapting to covering fan, this fan has the delay device postponing this opening.
Background technique
Traditional electric tool, such as ventilating fan, be commonly used to and discharged fragment, dust and rubbish.The fan of ventilating fan is made up of multiple flabellum, and this flabellum is used for deflating when high rotating speed.Conventional design comprises fan cover, the grid that this fan cover is normally thick, and this fan cover prevents flabellum to be damaged by external object for the protection of flabellum and this fan cover prevents user from being injured by the flabellum rotated when operating for the protection of user.
But due to a variety of causes, user must remove fan cover once in a while to clean covering of the fan rapidly.Even if fan cover is normally connected to the power switch of drive motor, this flabellum may not be decelerated to safe rotational speed in time and cause serious personal injury to user.
Summary of the invention
According to a first aspect of the invention, provide a kind of electric tool, this electric tool comprises the first driving component, and described first driving component can start by making the moving part of described electric tool and stop operating to drive described electric tool; Door, described door can move between open position and closed position, wherein, described door is set to, contact the moving part of described electric tool when described open position for user, and when described closed position, stop user to contact the moving part of described electric tool; And delay device, described delay device is set to, and after described first driving component makes the moving part of described electric tool stop, postponing described door and moves to open position from closed position.
In a mode of execution of first aspect, delay device is set to, and makes described door locked in described closed position.
In a mode of execution of first aspect, described delay device comprises locking component, and described locking component is suitable for locking described door in described closed position.
In a mode of execution of first aspect, after making described moving part stop, described locking component is released.
In a mode of execution of first aspect, described locking component comprises bolt, and described door can move between locked position and non-locked position, and wherein, when described bolt is in described locked position, described door is locked in described closed position; And when described bolt is at described non-locked position, described door can move from described closed position to described open position.
In a mode of execution of first aspect, described delay device comprises the second driving component further, and described second driving component is suitable for driving described bolt.
In a mode of execution of first aspect, described locking component comprises obstruction part further, described obstruction part can move between blocking and nonblocking positions, wherein, described obstruction part is suitable for, when described locked position, described bolt is stoped to move from described locked position to described non-locked position.
In a mode of execution of first aspect, wherein, at least one parts in described delay device are connected to described first driving component.
In a mode of execution of first aspect, described obstruction part is set to, and when described first driving component is configured such that the described moving part of described electric tool stops, described obstruction part moves to described non-blocking position.
In a mode of execution of first aspect, described obstruction part is connected with described first driving component by intermediate member.
In a mode of execution of first aspect, described intermediate member is connecting line.
In a mode of execution of first aspect, described obstruction part is set to, and when described first driving component is configured such that the moving part of described electric tool starts, described obstruction part moves to described blocking position.
In a mode of execution of first aspect, described delay device comprises the first elastic component further, described first elastic component is set to, when described first driving component is configured such that the described moving part of described electric tool starts, described first elastic component makes obstruction part return to described blocking position.
In a mode of execution of first aspect, described delay device comprises the second elastic component further, and described second elastic component is set to, and when described second driving component is not by driving, described second elastic component makes described bolt return to described locked position.
In a mode of execution of first aspect, comprise the 3rd driving component further, described 3rd driving component is suitable for, and when described door is removed from described closed position, described 3rd driving component makes the described moving part of described electric tool stop.
In a mode of execution of first aspect, described moving part is by motoring.
In a mode of execution of first aspect, described moving part is fan.
In a mode of execution of first aspect, described electric tool is ventilating fan.
Accompanying drawing explanation
By way of example the specific embodiment of the present invention is described by reference to the accompanying drawings now, wherein:
Fig. 1 is the sectional view of the electric tool according to an embodiment of the invention; And
Fig. 2 is close-up view interactive between each element in the delay device of electric tool in display Fig. 1.
Embodiment
In traditional ventilating fan, fan is arranged in fan room, and fan room is screened by moveable door or moveable fan cover.In some instances, door or fan cover are connected with switch, and time open with convenient door, or when fan cover is from when housing removes and fan room is opened, ventilating fan is forced to turn off; But due to inertia, fan may continue with High Rotation Speed a few second or longer, and this may be dangerous and may damage operator.
The present invention relates to a kind of electric tool, this electric tool includes but are not limited to a kind of ventilating fan.This electric tool comprises at least one moving part, the fan such as driven by motor (such as Wechselstrommotor or direct current motor).This motor can be driven by the driving component of such as power switch and so on, and this power switch is set to the electrical connection cut off or close between motor and power source, and this power switch can be operated by the user of this electric tool.This electric tool comprises door and delay device further, and this door covers this moving part at least partly, and this delay device after turning off this electric tool by user, can postpone this opening.
See Fig. 1 and Fig. 2, show a mode of execution of electric tool 100, this electric tool 100 comprises: the first driving component 104, and this first driving component 104 is operable as and drives this electric tool 100 by making the moving part of this electric tool 100 start or stop; Door 102, this door 102 is movably located between open position and closed position, wherein, this 102 is set to contact the moving part of this electric tool 100 when open position for user, and stops user to contact the moving part of this electric tool when closed position; And delay device, this delay device is set to after the first driving component 104 makes the moving part stopping of this electric tool 100, and delay gate 102 moves from closed position to open position.
In the present embodiment, the first driving component 104 can be positioned at the power switch on the housing 101 of this electric tool 100.This power switch 104 can operate to drive the moving part of such as motor or the fan that is connected with this motor in this electric tool 100 and so on.Such as, power switch 104 can be arranged to cut-out or the electrical connection between closedown motor and power source.Selectively, this power switch 104 can be connected with the control circuit for controlling this motor.
Preferably, fan is arranged in fan room, and this fan room is covered by the door 102 be positioned on the housing of this electric tool 100.As shown in fig. 1, this door 102 is in the closed position and thus stop user to contact this fan, and especially when fan rotates, this 102 can stop user to contact to rotate the fan that also may damage user.In some scenarios, this door 102 can be moved into open position and contact this moving part or fan with common user, and such as, user can clean the flabellum of this fan or the fan room of this electric tool 100.
Delay device can comprise some parts, these part fits with make in the first driving component the moving part of this electric tool 100 stop after or after fan is turned off by power switch 104, delay gate 102 moves from closed position to open position.Preferably, this delay device comprises locking component and this locking component is configured such that door 102 is locked in closed position, only when fan is switched off or be stopped, or when electric tool 100 is unlocked or starts, after the moving part of this electric tool 100 is stopped, this locking is released.This mechanism ensures that this door 102 is only open when electric tool 100 is stopped, and thus user can only contact the moving part of this electric tool 100 when this moving part does not move, and this prevents user and is injured by the moving part of electric tool 100.
See Fig. 2, locking component comprises bolt 106, this bolt 106 can move between locked position and non-locked position, wherein, when bolt 106 is positioned at locked position, door 102 is locked in closed position, and when bolt 106 is in the non-locked position time, door 102 can move from closed position to open position.Bolt 106 cooperates with the second driving component 108 to make to be locked in closed position at door 102, and the second driving component 108 is suitable for driving bolt 106.In this embodiment, the second driving component 108 is for being positioned at the button on the housing of this electric tool 100, and when user presses the button 108, bolt 106 does not lock, and door 102 can discharge from closed position and move to open position.
Preferably, delay device comprises second elastic component 110 of such as spring and so on further, and this second elastic component 110 is set to, when the second driving component 108 is not by driving, make bolt 106 return to locked position.When user's release-push 108, spring 110 makes button 108 and bolt 106 return to locked position and is locked in closed position to make door 102.
In addition, locking component comprises obstruction part 112 further, and this obstruction part 112 can move between blocking and nonblocking positions, wherein stops part 112 and is suitable for when blocking position, stops bolt 106 to move from locked position to non-locked position.See Fig. 2, stop part 112 and be positioned at non-blocking position, to make button 108 can be pressed by user, therefore, do not lock bolt 106 and door 102 can be moved from closed position.
In the present embodiment, stop part 112 and be connected to power switch 104, the movement of this obstruction part 112 or position and the first driving component 104 are contacted.Preferably, stop part 112 to be connected with the first driving component 104 by intermediate member 114.Such intermediate member 114 can comprise any other mode that throttle cable, connecting line, connecting line, wire, rope or those skilled in the art connect two parts in electric tool.When user's driving power switch 104, preferably turn off electric tool 100, stop part 112 to be hauled by power switch 104 by the tension force of connecting line 114, and stop part 112 and move to non-blocking position and lock bolt 106 and door 102 to make button 108 to be pressed.
Preferably, delay device comprises first elastic component 116 of such as spring and so on further, and this first elastic component is set to, when the first driving component 104 is configured such that the moving part of electric tool 100 starts, make obstruction part 112 return to blocking position.When user starts electric tool 100 by driving power switch 104, the tension force of connecting line 114 is released, and spring 116 makes obstruction part 112 return to blocking position is pressed by user in the operation of this electric tool 100 to prevent button 108.
Selectively, this electric tool 100 can comprise the 3rd driving component 202 of such as microswitch and so on, and when door 102 is removed from closed position, the 3rd driving component 202 is suitable for making the moving part of electric tool 100 to stop.Microswitch 202 guarantees that the moving part of electric tool 100 and electric tool 100 when door 102 is open can not be activated, to prevent when moving part is exposed to user further, to the injury that user causes.
In operating process, when user determines to open door 102 to contact the fan of ventilating fan 100, first user will turn off electric tool 100 by driving power switch 104, obstruction part 112 is pulled to non-blocking position by the tension force of connecting line 114 by power switch 104, user can press the button 108 with mobile bolt 106 to non-locked position afterwards, and user finally can open door 102 to contact the moving part of electric tool.When door 102 is not in closed position, because microswitch 202 is not driven by door 102, therefore fan can not be driven, and when user determines to drive ventilating fan 100 again, door 102 must be closed to closed position by user, and because button 108 returns to the position of locking bolt 106, therefore bolt 106 is moved into locked position, and door 102 drives microswitch 202 and user can start ventilating fan 100.When user starts ventilating fan 100 by driving power switch 104, the tension force of connecting line 114 is released and stops part 112 and moves to blocking position and be locked in closed position safely to make door 102.
Advantageously, the electric tool with such delay device can prevent user from being injured by the moving part of electric tool, and the moving part of this electric tool is in operation with high-speed mobile or rotation.This delay device guarantees that user observes step-by-step flow process to open door or the lid of shielding moving part equally, so that the time of opening needed for door is extended generally, this time period makes before door is opened, moving part at least slows down as slower travelling speed or rotational speed, and such moving part to be compared after electric tool has just been closed still with high-speed mobile and the moving part being exposed to user wants safety many.In addition, another benefit of delay device is, it provides a kind of safe locking mechanism to make a maintenance close thus to stop the user when operating accidentally to contact moving part.
Under the prerequisite not departing from spirit of the present invention, this electric tool can be ventilating fan, or the electric tool of other kinds, such as cleaning vacuum plant, chain saw, annular saw, power saw, this electric tool comprises moving part and door (or lid), this moving part can by motoring when operating, and this door (or lid) can be opened to expose described moving part enables user contact.
Be understandable that, do not departing under the prerequisite summarizing the spirit and scope of the present invention described, those skilled in the art can make various deformation and/or amendment to the present invention, as shown in the specific embodiments.Therefore, the mode of execution in the present invention for illustration of All aspects of, and is used for limiting.
All can not be considered to this information in this any prior art mentioned comprised is general knowledge, except as otherwise noted.
Claims (20)
1. an electric tool, comprising:
First driving component, described first driving component can start by making the moving part of described electric tool and stop operating to drive described electric tool;
Door, described door can move between open position and closed position, wherein, described door is set to, contact the moving part of described electric tool when described open position for user, and when described closed position, stop user to contact the moving part of described electric tool; And
Delay device, described delay device is set to, and after described first driving component makes the moving part of described electric tool stop, postponing described door and moves to open position from closed position.
2. electric tool according to claim 1, wherein, described delay device is set to, and makes described door locked in described closed position.
3. electric tool according to claim 1, wherein, described delay device comprises locking component, and described locking component is suitable for locking described door in described closed position.
4. electric tool according to claim 3, wherein, after making described moving part stop, described locking component is released.
5. electric tool according to claim 3, wherein, described locking component comprises bolt, and described door can move between locked position and non-locked position, and wherein, when described bolt is in described locked position, described door is locked in described closed position; And when described bolt is at described non-locked position, described door can move from described closed position to described open position.
6. electric tool according to claim 5, wherein, described delay device comprises the second driving component further, and described second driving component is suitable for driving described bolt.
7. electric tool according to claim 5, wherein, described locking component comprises obstruction part further, described obstruction part can move between blocking and nonblocking positions, wherein, described obstruction part is suitable for, and when described blocking position, stops described bolt to move from described locked position to described non-locked position.
8. electric tool according to claim 5, wherein, at least one parts in described delay device are connected to described first driving component.
9. electric tool according to claim 7, wherein, described obstruction part is set to, and when described first driving component is configured such that the described moving part of described electric tool stops, described obstruction part moves to described non-blocking position.
10. electric tool according to claim 9, wherein, described obstruction part is connected with described first driving component by intermediate member.
11. electric tools according to claim 10, wherein, described intermediate member is connecting line.
12. electric tools according to claim 10, wherein, described intermediate member is throttle cable.
13. electric tools according to claim 9, wherein, described obstruction part is set to, and when described first driving component is configured such that the moving part of described electric tool starts, described obstruction part moves to described blocking position.
14. electric tools according to claim 13, wherein, described delay device comprises the first elastic component further, described first elastic component is set to, when described first driving component is configured such that the described moving part of described electric tool starts, described first elastic component makes obstruction part return to described blocking position.
15. electric tools according to claim 6, wherein, described delay device comprises the second elastic component further, and described second elastic component is set to, when described second driving component is not by driving, described second elastic component makes described bolt return to described locked position.
16. electric tools according to claim 1, comprise the 3rd driving component further, and described 3rd driving component is suitable for, and when described door is removed from described closed position, described 3rd driving component makes the described moving part of described electric tool stop.
17. electric tools according to claim 1, wherein, described moving part is by motoring.
18. electric tools according to claim 1, wherein, described moving part is fan.
19. electric tools according to claim 1, wherein, described electric tool is ventilating fan.
20. 1 kinds of methods operating electric tool, comprise the following steps:
Stop making the moving part of described electric tool by operating the first driving component;
By operating the second driving component to remove the door being locked to closed position;
Wherein said door can move between open position and described closed position, and described door is set to, contact the moving part of described electric tool when described open position for user, and when described closed position, stop user to contact the moving part of described electric tool; And after described first driving component makes the moving part of described electric tool stop, described door is delayed by from closed position to the movement of open position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410208496.1A CN104948492B (en) | 2014-03-28 | 2014-05-16 | Electric tool with delay device |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2014/074305 WO2015143719A1 (en) | 2014-03-28 | 2014-03-28 | Power tool with delay mechanism |
| WOPCT/CN2014/074305 | 2014-03-28 | ||
| CNPCT/CN2014/074305 | 2014-03-28 | ||
| CN201410208496.1A CN104948492B (en) | 2014-03-28 | 2014-05-16 | Electric tool with delay device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104948492A true CN104948492A (en) | 2015-09-30 |
| CN104948492B CN104948492B (en) | 2018-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410208496.1A Expired - Fee Related CN104948492B (en) | 2014-03-28 | 2014-05-16 | Electric tool with delay device |
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| CN (1) | CN104948492B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4517939A (en) * | 1981-06-19 | 1985-05-21 | Komatsu Zenoah Co. | Dust collecting device |
| US20030221292A1 (en) * | 2002-06-04 | 2003-12-04 | David Pozgay | Power tool handle |
| CN101803880A (en) * | 2010-04-22 | 2010-08-18 | 广东新宝电器股份有限公司 | Safety protection device of soymilk grinder |
| CN202187629U (en) * | 2011-08-23 | 2012-04-11 | 浙江科都电气制造有限公司 | Door lock delay protection mechanism |
| CN203165725U (en) * | 2013-01-17 | 2013-08-28 | 浙江皇冠电动工具制造有限公司 | Hand-held electric tool safety switch push button mechanism |
| CN203354389U (en) * | 2013-05-10 | 2013-12-25 | 浙江绍兴苏泊尔生活电器有限公司 | Food preparation machine with lid opening time delay function |
-
2014
- 2014-05-16 CN CN201410208496.1A patent/CN104948492B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4517939A (en) * | 1981-06-19 | 1985-05-21 | Komatsu Zenoah Co. | Dust collecting device |
| US20030221292A1 (en) * | 2002-06-04 | 2003-12-04 | David Pozgay | Power tool handle |
| CN101803880A (en) * | 2010-04-22 | 2010-08-18 | 广东新宝电器股份有限公司 | Safety protection device of soymilk grinder |
| CN202187629U (en) * | 2011-08-23 | 2012-04-11 | 浙江科都电气制造有限公司 | Door lock delay protection mechanism |
| CN203165725U (en) * | 2013-01-17 | 2013-08-28 | 浙江皇冠电动工具制造有限公司 | Hand-held electric tool safety switch push button mechanism |
| CN203354389U (en) * | 2013-05-10 | 2013-12-25 | 浙江绍兴苏泊尔生活电器有限公司 | Food preparation machine with lid opening time delay function |
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| Publication number | Publication date |
|---|---|
| CN104948492B (en) | 2018-03-30 |
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Granted publication date: 20180330 Termination date: 20200516 |