CN101402184A - Electric angle grinder with secondary action unlocking mechanism - Google Patents
Electric angle grinder with secondary action unlocking mechanism Download PDFInfo
- Publication number
- CN101402184A CN101402184A CNA2008101621314A CN200810162131A CN101402184A CN 101402184 A CN101402184 A CN 101402184A CN A2008101621314 A CNA2008101621314 A CN A2008101621314A CN 200810162131 A CN200810162131 A CN 200810162131A CN 101402184 A CN101402184 A CN 101402184A
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- button
- pull bar
- casing
- block set
- polishing machine
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- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims description 2
- 238000005498 polishing Methods 0.000 abstract 7
- 230000002265 prevention Effects 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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Abstract
The invention relates to an angular polishing machine with a secondary action opening mechanism and belongs to the technical field of hand-held electric tool. The angular polishing machine comprises a shell, a motor, a transmission mechanism, a working head and a switch mechanism. The angular polishing machine is characterized in that the angular polishing machine is also provided with an error prevention opening mechanism; a button base is arranged on a shell of the error prevention opening mechanism; the inside of the button base is provided with a button switch which consists of a button, a button lever, a second offsetting spring and a limiting convex block on the button lever; a pull rod is provided with a groove moving along the button lever and a limiting hole correspondingly matched with the limiting convex block; when the button switch is in a closed state, the limiting convex block is in the limiting hole and limits the pulling of the pull rod; and when the button is pressed, the limiting convex block runs through the limiting hole so that the switch mechanism can act. In order to open the angular polishing machine, two obvious actions are needed to reliably avoid causing wrong opening by misoperation and improve the safety performance of the angular polishing machine, thus the angular polishing machine can meet the EN60745-2-3 European normal stipulation.
Description
Technical field
The invention belongs to technical field of hand-held electric tool, be specifically related to a kind of electric angle grinder with the secondary action opener.
Background technology
Existing electric angle grinder, the unlatching of its switch only needs an action, being about to button push promotes forward, the snap close that makes button push bottom be provided with projection falls on the casing in the lockhole with the projection corresponding matching of button push, the resistance that the pull bar that with button push be connected in the casing this moment overcomes the pull bar back-moving spring spurs forward, the shift fork of pull bar afterbody is stirred motor switch, makes electric motor starting, electric angle grinder work.There is bigger potential safety hazard in the electric angle grinder that action of this need just can be opened, because in use, often the maloperation to switch can take place in carelessness, electric angle grinder is moved under the situation that people have no to prepare, the electric angle grinder that starts gently then damages processing object, and is heavy then endanger operating personnel or peripheral personnel.In order to get rid of the above-mentioned potential safety hazard of existing electric angle grinder, EN60745-2-3 European standard regulation: switch open must have two significantly actions.In order to carry out above-mentioned standard, people have proposed new technical scheme to the switch of angle sanding machine, as number of patent application is 200810061116.0 " with the electric angle grinders of anti-error unlatching switching mechanism ", this technical scheme is compared with existing electric angle grinder, its security performance is improved, but two actions of opening switch are obvious inadequately, because its secondary opening all is to operate on a fork, can finish continuously with same finger, and exist the first step by draft link back segment bar end, lock dog breaks away from first lockhole, the second step pull switch button is not in place, lock dog does not fall into second lockhole, but just rests on the wall of two lockholes the situation of shut-down operation for some reason, and this can give the hidden danger that afterwards stays misoperation.
Summary of the invention
The objective of the invention is to provide a kind of electric angle grinder with the secondary action opener, it can get rid of the potential safety hazard that misoperation brings to electric angle grinder, improve the security performance of electric angle grinder, make electric angle grinder can meet the regulation of EN60745-2-3 European standard.
Above-mentioned goal of the invention is achieved through the following technical solutions, a kind of electric angle grinder with the secondary action opener, it comprises casing, motor, transmission mechanism, working head, switching mechanism, switching mechanism comprises: the bottom is provided with the button push of projection as snap close, on the casing with the lockhole of the projection corresponding matching of button push, supply the chute of button push front and back slippage on the casing, the pull bar that is connected with button push in the casing, first back-moving spring that is connected with pull bar, stir the motor switch that opens or closes with the shift fork of pull bar, the top of pull bar place stroke and terminal are corresponding with the enable possition with the closed position of button push respectively, its main points are: it also is provided with and prevents that button push from opening by mistake the anti-error opener that opens, anti-error opener is to be provided with the button base on casing, in the button base press button is housed, press button is by button, one end is contained in the button spindle that casing is promptly passed in bottom that the other end on the button passes the button base, second back-moving spring of adorning between button base and the button, the spacing block set of button spindle other end bottom is formed, pull bar be provided with the groove that moves along button spindle and with the spacing hole of spacing block set corresponding matching; When press button place closed condition, spacing block set is placed restrictions on the pulling of pull bar in spacing hole, and when pressing knob down, during press button place opening, spacing block set passes spacing hole, and pull bar can be spurred along button spindle.
The electric angle grinder of above-mentioned band secondary action opener, one of its structure are that the spacing block set of button spindle other end bottom becomes cuboid, and vertical with pull bar; Spacing hole with the spacing block set corresponding matching on the pull bar is vertical with the groove that its upper edge button spindle moves.
Open operation of the present invention is as follows: the first step: continue to press the button the button of switch, second back-moving spring is compressed, and the spacing block set of button spindle and other end bottom moves down, and spacing block set falls from the spacing hole of pull bar.Second step: with the different finger push button pushes of another hand or the same hand, making the projection of button push bottom is that snap close falls into the lockhole on the casing, the pull bar that be connected with button push this moment, the resistance that overcomes first back-moving spring moves forward, the shift fork of back end of tie rod is stirred motor switch and is opened, and makes electric angle grinder work; Meanwhile unclamp the hand or the finger that continue to touch the button.As the need shut-down operation, press button push, the projection that makes button push is that snap close is thrown off the lockhole on the casing, the pull bar that be connected with button push this moment moves under the effect of first back-moving spring backward, its groove moves along button spindle, when the spacing block set of spacing hole on the pull bar and button spindle was overlapping, press button up promoted under the effect of second back-moving spring, and spacing block set is risen in the spacing hole of pull bar again.
From above structure and operating process as can be seen, the present invention will open electric angle grinder, two significantly action, the i.e. first steps must be arranged: the button that continues to press the button switch; Second step: with the different finger push button pushes of another hand or the same hand.The operation of the first step can not stay potential safety hazard to the operation in second step, can prevent reliably that electric angle grinder from opening because of maloperation opens by mistake, and has improved the security performance of electric angle grinder, makes electric angle grinder can meet the regulation of EN60745-2-3 European standard.
Description of drawings
Fig. 1: structural representation of the present invention
Fig. 2: switching mechanism, anti-error opener structural representation
Fig. 3: the A-A cutaway view when Fig. 2 button is not pressed
Fig. 4: the A-A cutaway view when Fig. 2 button is pressed
Fig. 5: the structural representation of pull rod slot and spacing hole
Fig. 6: existing electric angle grinder shift knob schematic diagram
Among the 1-5: 1-casing, 2-motor, 3-transmission mechanism, 4-working head, the 5-switching mechanism, 6-button, 7-snap close, 8-lockhole, the 9-pull bar, 10-chute, 11-first back-moving spring, 12-spacing block set, the anti-error opener of 13-, 14-second back-moving spring, 15-spacing hole, the 16-button push, 17-shift fork, 18-button base, the 19-press button, 20-button spindle, 21-groove
The specific embodiment
By Fig. 1-5 represented be one embodiment of the invention, it comprises casing 1, motor 2, transmission mechanism 3, working head 4, switching mechanism 5, anti-error opener 13, switching mechanism 5 comprises: the bottom is provided with the button push 16 of projection as snap close 7, on the casing 1 with the lockhole 8 of the projection corresponding matching of button push 16, supply the chute 10 of button push 16 front and back slippages on the casing 1, the pull bar 9 that is connected with button push 16 in the casing 1, first back-moving spring 11 that is connected with pull bar 9, shift fork 17 with pull bar 9 is stirred the motor switch that opens or closes, and the top of pull bar 9 place's strokes and terminal are corresponding with the enable possition with the closed position of button push 16 respectively; Anti-error opener 13 is to be provided with button base 18 on casing 1, press button 19 is housed in the button base 18, press button 19 is contained in by button 6, an end that second back-moving spring 14 of dress between button spindle 20, button base 18 and the button 6 of casing 1 is promptly passed in bottom that the other end on the button 6 passes button base 18, the spacing block set 12 of button spindle 20 other ends bottom is formed, pull bar 9 be provided with the groove 21 that moves along button spindle 20 and and the spacing hole 15 of spacing block set 12 corresponding matching; When press button 19 place closed conditions, spacing block set 12 is placed restrictions on the pulling of pull bar 9 in spacing hole 15; When pressing knob down 6, press button 19 place's openings, spacing block set 12 passes spacing hole 15, makes the pull bar 9 can be along button spindle 20 pullings; 12 one-tenth cuboids of spacing block set of button spindle 20 other ends bottom, and vertical with pull bar 9; Pull bar 9 upper limit holes 15 are vertical with groove 21.
The foregoing description can prevent that the operating process of opening and opening because of misoperation is as follows: people promote button push 16 because of misoperation, therefore the spacing block set 12 the time on the press button 19 of anti-error opener 13 is in the spacing hole 15 of pull bar 9, spacing block set 12 has been placed restrictions on moving of pull bar 9, so the button push 16 that is connected with pull bar 9 can't promote, thereby prevented to open electric angle grinder because of misoperation.And normal the unlatching, two significantly actions must be arranged, the first step: the button 6 that continues to press the button switch 19, this moment, second back-moving spring 14 was compressed, button spindle 20 and spacing block set 12 move down, spacing block set 12 falls from the spacing hole 15 of pull bar 9, and button spindle 20 is in the middle of the groove 21 of pull bar 9.Second step: with the different finger push button pushes 16 of another hand or the same hand, the projection that makes button push 16 bottoms is that snap close 7 falls into the lockhole 8 on the casing 1, the resistance that the pull bar 9 that be connected with button push 16 this moment overcomes first back-moving spring 11 moves forward, groove 21 on the pull bar 9 moves along button spindle 20, the shift fork 17 of pull bar 9 rear ends is stirred motor switch and is opened, make electric angle grinder work, meanwhile unclamp lasting by hand on button 6 or finger.
Claims (2)
1. electric angle grinder with the secondary action opener, it comprises casing, motor, transmission mechanism, working head, switching mechanism, switching mechanism comprises: the bottom is provided with the button push of projection as snap close, on the casing with the lockhole of the projection corresponding matching of button push, supply the chute of button push front and back slippage on the casing, the pull bar that is connected with button push in the casing, first back-moving spring that is connected with pull bar, stir the motor switch that opens or closes with the shift fork of pull bar, the top of pull bar place stroke and terminal are corresponding with the enable possition with the closed position of button push respectively, it is characterized in that: it also is provided with and prevents that button push from opening by mistake the anti-error opener that opens, anti-error opener is to be provided with the button base on casing, in the button base press button is housed, press button is by button, one end is contained in the button spindle that casing is promptly passed in bottom that the other end on the button passes the button base, second back-moving spring of adorning between button base and the button, the spacing block set of button spindle other end bottom is formed, pull bar be provided with the groove that moves along button spindle and with the spacing hole of spacing block set corresponding matching; When press button place closed condition, spacing block set is placed restrictions on the pulling of pull bar in spacing hole, when pressing knob down, and press button place opening, spacing block set passes spacing hole, and pull bar can be spurred along button spindle.
2. the electric angle grinder of band secondary action opener according to claim 1 is characterized in that the spacing block set of button spindle other end bottom becomes cuboid, and vertical with pull bar; Vertical with it on the pull bar along groove that button spindle moves with the spacing hole of spacing block set corresponding matching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101621314A CN101402184B (en) | 2008-11-13 | 2008-11-13 | Electric angle grinder with secondary action unlocking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101621314A CN101402184B (en) | 2008-11-13 | 2008-11-13 | Electric angle grinder with secondary action unlocking mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101402184A true CN101402184A (en) | 2009-04-08 |
| CN101402184B CN101402184B (en) | 2010-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101621314A Expired - Fee Related CN101402184B (en) | 2008-11-13 | 2008-11-13 | Electric angle grinder with secondary action unlocking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101402184B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104175196A (en) * | 2013-05-21 | 2014-12-03 | 宝时得机械（张家港）有限公司 | Angle grinder |
| CN104362014A (en) * | 2014-08-06 | 2015-02-18 | 兴化市中兴电动工具有限公司 | Power switch on electric grinder |
| CN106827026A (en) * | 2017-04-11 | 2017-06-13 | 广州元凛建筑工程技术开发有限公司 | A kind of plate cutting device |
| CN108652550A (en) * | 2018-06-01 | 2018-10-16 | 佛山市顺德区美的洗涤电器制造有限公司 | Household appliance housing unit and dish-washing machine |
| CN108652551A (en) * | 2018-06-01 | 2018-10-16 | 佛山市顺德区美的洗涤电器制造有限公司 | Household appliance housing unit and dish-washing machine |
| CN108742417A (en) * | 2018-06-01 | 2018-11-06 | 佛山市顺德区美的洗涤电器制造有限公司 | Household appliance housing unit and dish-washing machine |
| WO2021078251A1 (en) * | 2019-10-25 | 2021-04-29 | 南京德朔实业有限公司 | Electric tool |
| CN112841260A (en) * | 2021-01-14 | 2021-05-28 | 黄秀兰 | Fish ball rapid prototyping equipment for food processing |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2850120A1 (en) * | 1977-11-21 | 1979-05-23 | Black & Decker Mfg Co | SWITCH OPERATING DEVICE |
| CN2539269Y (en) * | 2001-12-19 | 2003-03-05 | 杨法德 | Controlling switch for electric tool |
| CN101249629A (en) * | 2008-03-07 | 2008-08-27 | 浙江武义工力电器有限公司 | Angle sanding machine with mis-opening prevention opening-closing mechanism |
-
2008
- 2008-11-13 CN CN2008101621314A patent/CN101402184B/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104175196A (en) * | 2013-05-21 | 2014-12-03 | 宝时得机械（张家港）有限公司 | Angle grinder |
| CN104362014A (en) * | 2014-08-06 | 2015-02-18 | 兴化市中兴电动工具有限公司 | Power switch on electric grinder |
| CN106827026A (en) * | 2017-04-11 | 2017-06-13 | 广州元凛建筑工程技术开发有限公司 | A kind of plate cutting device |
| CN108652550A (en) * | 2018-06-01 | 2018-10-16 | 佛山市顺德区美的洗涤电器制造有限公司 | Household appliance housing unit and dish-washing machine |
| CN108652551A (en) * | 2018-06-01 | 2018-10-16 | 佛山市顺德区美的洗涤电器制造有限公司 | Household appliance housing unit and dish-washing machine |
| CN108742417A (en) * | 2018-06-01 | 2018-11-06 | 佛山市顺德区美的洗涤电器制造有限公司 | Household appliance housing unit and dish-washing machine |
| CN108652551B (en) * | 2018-06-01 | 2023-06-30 | 佛山市顺德区美的洗涤电器制造有限公司 | Household appliance housing assembly and dishwasher |
| CN108652550B (en) * | 2018-06-01 | 2023-07-28 | 佛山市顺德区美的洗涤电器制造有限公司 | Household appliance housing assembly and dishwasher |
| CN108742417B (en) * | 2018-06-01 | 2023-07-28 | 佛山市顺德区美的洗涤电器制造有限公司 | Household appliance housing assembly and dishwasher |
| WO2021078251A1 (en) * | 2019-10-25 | 2021-04-29 | 南京德朔实业有限公司 | Electric tool |
| CN112841260A (en) * | 2021-01-14 | 2021-05-28 | 黄秀兰 | Fish ball rapid prototyping equipment for food processing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101402184B (en) | 2010-06-09 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20090408 Assignee: Zhejiang Dongsen Electric Appliances Co., Ltd. Assignor: Shu Haifa Contract record no.: 2011330000569 Denomination of invention: Electric angle grinder with secondary action unlocking mechanism Granted publication date: 20100609 License type: Exclusive License Record date: 20110523 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190419 Address after: 321205 Guma Mountain Industrial Zone, Wangzhai Town, Wuyi County, Jinhua City, Zhejiang Province Patentee after: Zhejiang Dongsen Electric Appliances Co., Ltd. Address before: 321205 Zhejiang Wuyi County Zhejiang Dongsen Electrical Appliance Co., Ltd. Patentee before: Shu Haifa |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100609 Termination date: 20191113 |
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| CF01 | Termination of patent right due to non-payment of annual fee |