CN2498724Y - Switch locking mechanism for electric screw driver - Google Patents
Switch locking mechanism for electric screw driver Download PDFInfo
- Publication number
- CN2498724Y CN2498724Y CN 01210953 CN01210953U CN2498724Y CN 2498724 Y CN2498724 Y CN 2498724Y CN 01210953 CN01210953 CN 01210953 CN 01210953 U CN01210953 U CN 01210953U CN 2498724 Y CN2498724 Y CN 2498724Y
- Authority
- CN
- China
- Prior art keywords
- switch
- push rod
- housing
- shrinkage pool
- slide plate
- 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
Disclosed is a switch interlocking mechanism for an electric screw driver. The interlocking mechanism comprises an operating switch, a reversing switch and a mandril; the top of the mandril and a pressure lever are arranged against each other. A concave hole which can allow the end of the mandril to be inserted into is arranged on a housing, corresponding to the mandril end; an offsetting spring is arranged in the middle of the mandril; a slide plate is connected with a switch extracted-top of the reversing switch; a hole which can allow the end of the mandril through is opened on the slide plate, near the concave hole on the housing. The end of the mandril is inserted into the corresponding concave hole after the operating switch pressure lever of the utility model is pressed down, and then the switch extracted-top is locked, thereby the incorrect manipulation that the reversing switch is moved to reverse an electric motor when the operating switch is pressed but not returns can be avoided.
Description
The utility model relates to a kind of construction of switch of electric screwdriver, specifically, is a kind of switch interlocking device of electric screwdriver.
Electric screwdriver generally is used for the assembling line of enterprise, generally all has two switches on the existing electric screwdriver, and one is operating switch, generally adopts automatically reset sensitive switch, and when pressing, the rotation of screwdriver output shaft during relieving, stops; Another is a reversing switch, promptly controls the direction of rotation of screwdriver output shaft, generally adopts toggle switch.Yet, find in practice, such misoperation might take place in operating personnel: promptly do not reset as yet after pressing operating switch and just stirred reversing switch, the motor that drives the screwdriver output shaft like this will be changed into inverted status from commentaries on classics state just in moment, need overcome very big moment, serious meeting damages motor.
The purpose of this utility model just is to provide at above-mentioned prior art present situation a kind of switch interlocking device of electric screw, just stirs the misoperation of reversing switch to stop not reset as yet at operating switch.
The purpose of this utility model is achieved in that the switch interlocking device of electric screwdriver comprises and is positioned at housing and operating switch that is oppositely arranged and reversing switch, one depression bar is positioned at the outside of operating switch and stretches out outside the housing, it is characterized in that in housing, also being provided with a push rod, the top of push rod and the inboard of described depression bar offset, and housing has in the position of corresponding push rod tail end and can hold the shrinkage pool that the push rod tail end inserts, and is provided with one at the medium position of push rod and keeps the back-moving spring that push rod top and depression bar offset; The switch of described reversing switch is dialled cap and is connected with a slide plate, slide plate has at the end that is close to described housing shrinkage pool can hold the hole that the top board end penetrates, and when switch is dialled cap and is in position away from described housing shrinkage pool, the slide plate end just in time leaves described housing shrinkage pool, and when switch was dialled cap and is in position near described housing shrinkage pool, the hole of described slide plate end was just in time aimed at described housing shrinkage pool.
After adopting structure of the present utility model, when depress depression bar, when pressing operating switch, the push rod end will insert in the corresponding shell shrinkage pool, dialling slide plate or its end that cap is connected one with the switch of reversing switch this moment is stopped by the push rod end, its terminal aperture is penetrated by the push rod end and is spacing, two kinds of situations all make the switch of reversing switch dial the cap locking, thus the possibility of having stopped by mistake to be stirred.
Description of drawings:
Fig. 1 uses the electric screwdriver schematic appearance of the utility model embodiment.
Fig. 2 is the partial sectional view of Fig. 1.
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As shown in Figure 1 and Figure 2, the switch interlocking device of electric screwdriver comprises operating switch 3 and the reversing switch 2 that is positioned at housing 1 and is oppositely arranged, one depression bar 31 is positioned at the outside of operating switch 3 and stretches out outside the housing, one push rod 6 is positioned at housing, the inboard of its top and described depression bar 31 offsets, and housing 1 has the shrinkage pool 11 that can hold the insertion of push rod 6 tail ends in the position of corresponding push rod 6 tail ends, medium position at push rod 6 is provided with a back-moving spring 4, be positioned at spring housing 5, back-moving spring 4 is used for keeping push rod 6 tops and depression bar 31 offsets; The switch of described reversing switch is dialled cap 21 and is connected with a slide plate 22, and slide plate 22 has at the end that is close to described housing shrinkage pool 11 can hold the hole 23 that top board 6 ends penetrate;
When switch is dialled cap 21 and is in position away from described housing shrinkage pool 11, slide plate 22 ends just in time leave described housing shrinkage pool 11, and when switch was dialled cap 21 and is in position near described housing shrinkage pool 11, the hole 23 of described slide plate 22 ends was just in time aimed at described housing shrinkage pool 11.During use, when depressing depression bar 31, pressing operating switch 3, push rod 6 ends will insert in the corresponding shell shrinkage pool 11, dial slide plate 22 or its end that cap 21 is connected one with the switch of reversing switch this moment and stopped (shown in Fig. 2) by push rod 6 ends, its terminal aperture 23 is penetrated by push rod 6 ends and spacing (among Fig. 2 shown in the double dot dash line), two kinds of situations all make the switch of reversing switch dial cap 21 lockings, thus the possibility of having stopped by mistake to be stirred.
Claims (1)
1. the switch interlocking device of an electric screwdriver, comprise and be positioned at housing and operating switch that is oppositely arranged and reversing switch, one depression bar is positioned at the outside of operating switch and stretches out outside the housing, it is characterized in that in housing, also being provided with a push rod, the top of push rod and the inboard of described depression bar offset, and housing has in the position of corresponding push rod tail end and can hold the shrinkage pool that the push rod tail end inserts, and is provided with one at the medium position of push rod and keeps the back-moving spring that push rod top and depression bar offset; The switch of described reversing switch is dialled cap and is connected with a slide plate, slide plate has at the end that is close to described housing shrinkage pool can hold the hole that the top board end penetrates, and when switch is dialled cap and is in position away from described housing shrinkage pool, the slide plate end just in time leaves described housing shrinkage pool, and when switch was dialled cap and is in position near described housing shrinkage pool, the hole of described slide plate end was just in time aimed at described housing shrinkage pool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01210953 CN2498724Y (en) | 2001-02-28 | 2001-02-28 | Switch locking mechanism for electric screw driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01210953 CN2498724Y (en) | 2001-02-28 | 2001-02-28 | Switch locking mechanism for electric screw driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2498724Y true CN2498724Y (en) | 2002-07-03 |
Family
ID=33630425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01210953 Expired - Fee Related CN2498724Y (en) | 2001-02-28 | 2001-02-28 | Switch locking mechanism for electric screw driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2498724Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100484724C (en) * | 2003-12-30 | 2009-05-06 | 罗伯特博世有限公司 | Electric tool with dually controllable switch |
-
2001
- 2001-02-28 CN CN 01210953 patent/CN2498724Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100484724C (en) * | 2003-12-30 | 2009-05-06 | 罗伯特博世有限公司 | Electric tool with dually controllable switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |