CN201776687U - Electric grinder capable of instantly stopping - Google Patents
Electric grinder capable of instantly stopping Download PDFInfo
- Publication number
- CN201776687U CN201776687U CN2010202838059U CN201020283805U CN201776687U CN 201776687 U CN201776687 U CN 201776687U CN 2010202838059 U CN2010202838059 U CN 2010202838059U CN 201020283805 U CN201020283805 U CN 201020283805U CN 201776687 U CN201776687 U CN 201776687U
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- CN
- China
- Prior art keywords
- wiring board
- casing
- speed governing
- circuit board
- speed regulating
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to an electric grinder capable of instantly stopping, which is characterized by comprising a shell, a micro motor, a battery, a transmission shaft and a grinder head, wherein a speed regulating circuit board is fixed in the shell; a speed regulating knob is connected to the speed regulating circuit board through the rotation of a rotating shaft; the input end of the speed regulating circuit board is connected with the battery through a lead, and the output end of the speed regulating circuit board is connected with the micro motor through the lead; a trigger switch circuit board is fixed in the shell; a button for triggering the trigger switch circuit board is arranged on the shell; the input end of the trigger switch circuit board is connected with the control end of the speed regulating circuit board through the lead; the button is pressed to trigger the switch circuit board which sends a signal to the speed regulating circuit board; the speed regulating circuit board is in a circuit state equivalent to the position of the O stop even if the speed regulating knob is not in the position of the O stop; and the speed regulating circuit board is in the off state, thus the battery can not supply the power to the micro motor through the speed regulating circuit board, thus the electric grinder stops working instantly.
Description
Technical field
The utility model relates to a kind of electric tool, relates in particular to a kind of electric mill that can suddenly stop.
Background technology
A lot of occasions need be used hand-held electric mill cutting element processing work surface, existing electric mill generally comprises casing, micromachine and battery are housed in the casing, the output shaft of micromachine is connected with the bistrique that is positioned at casing the place ahead by power transmission shaft and drives bistrique rotation, connect by switch between micromachine and the battery, this switch is contained on the casing.As a patent No. is the electric mill structure of a kind of routine the Chinese utility model patent " Hand-Held Electric Bull Mill " of ZL200520014326.6 (notification number is CN2782300Y) has disclosed.
For the speed that makes the bistrique rotating speed can be regulated, realization is adopted associated polishing speed to different workpieces, the switch designs that someone will connect micromachine and battery is a speed-regulating switch, this speed-regulating switch structure includes adjusting knob and speed governing wiring board, wherein the speed governing wiring board is fixed in the casing, adjusting knob is rotatably connected on the speed governing wiring board by rotating shaft, the part of while adjusting knob is exposed casing and is rotated for the people, adjusting knob is connected with the speed governing wiring board, rotating adjusting knob just can make the resistance on the wiring board change, change the rotating speed of the output shaft of micromachine, on the side face of adjusting knob with gear, with four retaining speed governing knobs is example, is respectively 0 retaining, 1 retaining, 2 retainings, 3 retainings and 4 retainings rotate adjusting knob, respectively from 0 retaining, 1 retaining, 2 retainings, 3 keep off 4 retainings, the retaining number is high-speed more fast more, and when the retaining number was 0 retaining, motor quit work.There is such problem in this speed-regulating switch structure, be that it can only be regulated by retaining, promptly rotate to 4 gears when putting when adjusting knob, as want electric mill to quit work, then need to keep off 0 retaining from 4 retainings, 3 retainings, 2 retainings, 1 and just can stop, can not stop electric mill at once, safety in utilization also is weak, along with the raising of external safety standard, need electric mill suddenly to stop.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of no matter speed governing button to be positioned at which kind of retaining numerical digit to put and also can make the quick out-of-work electric mill of electric mill at above-mentioned prior art present situation.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of electric mill that can suddenly stop, comprise casing, micromachine and battery are housed in the casing, be fixed with power transmission shaft on the output shaft of micromachine, power transmission shaft is connected with bistrique after passing the casing front end, also be fixed with the speed governing wiring board in the casing, be rotatably connected to the speed governing knob adaptive by rotating shaft on the described speed governing wiring board with this speed governing wiring board, the part of adjusting knob is exposed casing and is rotated for the people, the input of described speed governing wiring board is connected with battery by lead, and the output of speed governing wiring board is connected with micromachine by lead; It is characterized in that: also be fixed with the trigger switch wiring board in the described casing, casing is provided with in order to trigger the button of described trigger switch wiring board, and the input of this trigger switch wiring board is connected by the control end of lead with described speed governing wiring board.
Have locating hole on the above-mentioned power transmission shaft side face, front portion constraint in the casing only has the locking post of slippage up and down, this locking post and described locating hole match, under the state of locking post insertion locating hole, can stop the power transmission shaft rotation, the upper end of described locking post also is connected with the locking button, the locking button exposes outside casing, also is arranged with on the described locking post to make the locking post keep moving the spring that breaks away from locating hole trend.Aforementioned structure makes this electric mill also have auxiliary sudden-stop function, need the anxious stopping time, press locking knob, under the locating hole internal state on the locking post insertion power transmission shaft, stop that power transmission shaft is further rotated, and after external force was cancelled, the locking post can pop up under spring action, and leaving locating hole, power transmission shaft just can continue rotation.
Rear portion in the said machine casing is provided with the installing space that inserts the location for described battery.This structure is connected on the casing battery dismounting in this electric mill, and battery can adopt rechargeable lithium battary.
Compared with prior art, advantage of the present utility model is: no matter which work gear adjusting knob is positioned at, as long as press button, the trigger switch wiring board, the switching circuit plate sends a signal and gives the speed governing wiring board, even adjusting knob is not put at 0 gear, the speed governing wiring board is in be equivalent to the line status of 0 retaining position, the speed governing wiring board is in off-state, battery can not be powered to micromachine by the speed governing wiring board, and electric mill just quits work, and plays the anxious effect that stops, therefore the use of this electric mill is safer, can satisfy new safety standard.
Description of drawings
Fig. 1 is the perspective view of the utility model embodiment;
Fig. 2 is the structure cutaway view of the utility model embodiment.
The specific embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As shown in Figure 1, 2, be a preferred embodiment of the present utility model.
A kind of electric mill that can suddenly stop comprises casing 1, and half housing was involutory about casing 1 generally had is formed by fixedly connecting, micromachine 2 and battery are housed in the casing 1, rear portion in the casing 1 is provided with the installing space 13 that inserts the location for battery, and battery adopts lithium battery, and battery does not show in drawing.Be fixed with power transmission shaft 3 on the output shaft of micromachine 2, power transmission shaft 3 is connected with bistrique 4 after passing the casing front end, also be fixed with speed governing wiring board 5 in the casing 1, be rotatably connected to the speed governing knob 6 adaptive by rotating shaft 7 on the speed governing wiring board 5 with this speed governing wiring board 5, the part of adjusting knob 6 is exposed casing 1 and is rotated for the people, the input of speed governing wiring board 5 is connected with battery by lead 8, and the output of speed governing wiring board 5 is connected with micromachine 2 by lead 8.More than be the conventional structure of electric mill.
Main improvement of the present utility model is, in casing 1, also be fixed with trigger switch wiring board 9, casing 1 is provided with in order to the button 91 that triggers described trigger switch wiring board 9, and the input of this trigger switch wiring board 9 is connected with the control end of described speed governing wiring board 5 by lead 8.Press button 91, trigger switch wiring board 9 sends a signal can for speed governing wiring board 5, makes the line status of speed governing wiring board be equivalent to be in 0 retaining position, and speed governing wiring board 5 is in off-state, battery can not give micromachine 2 power supplies by speed governing wiring board 5, and electric mill quits work.
Another improvement of the present utility model is, have locating hole 31 on power transmission shaft 3 side faces, front portion constraint in the casing 1 only has the locking post 10 of slippage up and down, this locking post 10 matches with locating hole 31, under the state of locking post 10 insertion locating holes 31, can stop power transmission shaft 3 rotations, the upper end of locking post 10 also is connected with locking button 11, and locking button 11 exposes outside casing 1, also is arranged with on the locking post 10 to make locking post 10 keep moving the spring 12 that breaks away from locating hole 31 trend.
During operate as normal, be example with four retaining speed governing knobs 6, be respectively 0 retaining, 1 retaining, 2 retainings, 3 retainings and 4 retainings, rotate adjusting knob 6, keep off 4 retainings from 0 retaining, 1 retaining, 2 retainings, 3 respectively, the high more rotary speed of retaining number is fast more, and when the retaining number was 0 retaining, micromachine 2 quit work.
The anxious stopping time, press button 91, trigger switch wiring board 9 sends a signal can for speed governing wiring board 5, speed governing wiring board 5 is in be equivalent to the line status of 0 retaining position, speed governing wiring board 5 is in off-state, battery can not give micromachine 2 power supplies by speed governing wiring board 5, and electric mill quits work.
As continuing operate as normal, then also to again speed governing knob 6 be turned back to 0 gear and put, the line status that makes speed governing knob 6 positions and speed governing wiring board 5 can operate as normal just rotate speed governing knob 6 once more to coupling.
Claims (3)
1. electric mill that can suddenly stop, comprise casing (1), micromachine (2) and battery are housed in the casing (1), be fixed with power transmission shaft (3) on the output shaft of micromachine (2), power transmission shaft (3) is connected with bistrique (4) after passing the casing front end, also be fixed with speed governing wiring board (5) in the casing (1), described speed governing wiring board (5) is gone up and is rotatably connected to the speed governing knob (6) adaptive with this speed governing wiring board (5) by rotating shaft (7), the part of adjusting knob (6) is exposed casing (1) and is rotated for the people, the input of described speed governing wiring board (5) is connected with battery by lead (8), and the output of speed governing wiring board (5) is connected with micromachine (2) by lead (8); It is characterized in that: also be fixed with trigger switch wiring board (9) in the described casing (1), casing (1) is provided with in order to trigger the button (91) of described trigger switch wiring board (9), and the input of this trigger switch wiring board (9) is connected with the control end of described speed governing wiring board (5) by lead (8).
2. the electric mill that can suddenly stop according to claim 1, it is characterized in that: have locating hole (31) on described power transmission shaft (3) side face, front portion constraint in the casing (1) only has the locking post (10) of slippage up and down, this locking post (10) matches with described locating hole (31), under the state of locking post (10) insertion locating hole (31), can stop power transmission shaft (3) rotation, the upper end of described locking post (10) also is connected with locking button (11), locking button (11) exposes outside casing (1), also is arranged with on the described locking post (10) to make in the maintenance of locking post (10) to move the spring (12) that breaks away from locating hole (31) trend.
3. the electric mill that can suddenly stop according to claim 1 is characterized in that: the rear portion in the described casing (1) is provided with the installing space (13) that inserts the location for described battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202838059U CN201776687U (en) | 2010-08-05 | 2010-08-05 | Electric grinder capable of instantly stopping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202838059U CN201776687U (en) | 2010-08-05 | 2010-08-05 | Electric grinder capable of instantly stopping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201776687U true CN201776687U (en) | 2011-03-30 |
Family
ID=43789918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202838059U Expired - Fee Related CN201776687U (en) | 2010-08-05 | 2010-08-05 | Electric grinder capable of instantly stopping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201776687U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109940493A (en) * | 2017-12-20 | 2019-06-28 | 上海运安制版有限公司 | A kind of hand-held copper face local polishing device |
| CN110962016A (en) * | 2018-09-30 | 2020-04-07 | 苏州宝时得电动工具有限公司 | Angle grinder |
-
2010
- 2010-08-05 CN CN2010202838059U patent/CN201776687U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109940493A (en) * | 2017-12-20 | 2019-06-28 | 上海运安制版有限公司 | A kind of hand-held copper face local polishing device |
| CN110962016A (en) * | 2018-09-30 | 2020-04-07 | 苏州宝时得电动工具有限公司 | Angle grinder |
| CN110962016B (en) * | 2018-09-30 | 2022-04-15 | 苏州宝时得电动工具有限公司 | Angle grinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110330 Termination date: 20150805 |
|
| EXPY | Termination of patent right or utility model |