CN2177990Y - Speed regulating switch for hand electrodrill - Google Patents
Speed regulating switch for hand electrodrill Download PDFInfo
- Publication number
- CN2177990Y CN2177990Y CN 93246351 CN93246351U CN2177990Y CN 2177990 Y CN2177990 Y CN 2177990Y CN 93246351 CN93246351 CN 93246351 CN 93246351 U CN93246351 U CN 93246351U CN 2177990 Y CN2177990 Y CN 2177990Y
- Authority
- CN
- China
- Prior art keywords
- switch
- speed
- slide block
- electric hand
- hand drill
- 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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- Drilling And Boring (AREA)
Abstract
The utility model discloses a speed regulating switch for an electric hand drill. The side surface of the slide block of the switch is provided with a front convex block, and the slide block of the switch is connected with a speed regulating knob. The back part of the speed regulating knob is connected with a gag lever post via threads, the gag lever post is provided with a back convex block at the same side with the front convex block, and the front convex block and the back convex block are arranged in the chutes of an outer shell. The seat of the switch is provided with the speed regulation resistance cards of two poles of controlled silicon, and the speed regulation resistance cards are contacted with riding clips connected with the slide block of the switch. The switch for an electric hand drill can be used for regulating highest rated speed as well as rotating speed.
Description
The utility model relates to a kind of switch.
Electric hand drill rotating speed of the prior art has adjustable, also have nonadjustable, even but the electric hand drill that speed can be regulated, its maximum amount is decided rotating speed and is also fixed, so just brought inconvenience to the user, because governing speed is to lean on the size of the power of operator's finger Push switch to decide, so just be difficult to maintain on each specific rotating speed.
The purpose of this utility model is: a kind of electric hand drill speed-regulating switch is provided, makes electric hand drill can governing speed can regulate maximum amount again and decide rotating speed.
The technical solution of the utility model is: a kind of electric hand drill speed-regulating switch, the shell that comprises stage clip, floatless switch seat and switch slide block between switch slide block, switch base and the switch slide block in switch base, the switch base, described switch slide block side is provided with preceding projection, be connected with the speed governing knob on the switch slide block, behind the speed governing knob by the gag lever post that has been threaded, gag lever post is provided with the back projection with preceding projection homonymy, and preceding projection and back projection drop on the shell and be provided with in the chute; Described switch base is provided with the speed adjusting resistance sheet at controllable silicon the two poles of the earth, and contact has the saddle clip that is connected on the switch slide block on the speed adjusting resistance sheet.
The utility model has the advantages that:
1. on the switch slide block, be provided with the speed governing knob owing to the utility model, the make a return journey stroke of its energy by-pass cock slide block in switch base, thus the maximum amount of determining electric hand drill is decided rotating speed.
2. regulate by the speed governing knob because of its rated speed, so in fact the rotating speed of this electric hand drill can stepless speed regulation.
The utility model will be further described below in conjunction with drawings and Examples:
Fig. 1 is a front view of the present utility model;
Fig. 2 is a rearview of the present utility model.
Wherein: 1. switch base; 2. switch slide block; 3. stage clip; 4. shell; 5. speed governing knob; 6. gag lever post; 7. projection after; 8. speed adjusting resistance sheet; 9. saddle clip; 10. preceding projection; 11. chute; 12. steady pin; 13. circumferential groove.
Embodiment: as seen from Figure 1, Figure 2, a kind of electric hand drill speed-regulating switch comprises the shell 4 of stage clip 3, floatless switch seat 1 and switch slide block 2 between switch slide block 2, switch base 1 and the switch slide block 2 in the switch base 1, switch base 1; Described switch slide block 2 sides are provided with preceding projection 10, be connected with speed governing knob 5 on the switch slide block 2, speed governing knob 5 backs are by the gag lever post 6 that has been threaded, and gag lever post 6 is provided with the back projection 7 with preceding projection 10 homonymies, and preceding projection 11 and back projection 7 drop in the chute set on the shell 4 11; Described switch base 1 is provided with the speed adjusting resistance sheet 8 at controllable silicon the two poles of the earth, and contact has the saddle clip 9 that is connected on the switch slide block 2 on the speed adjusting resistance sheet 8; Described switch slide block 2 is provided with steady pin 12 and is inserted in the circumferential groove 13 on the speed governing knob 5.The utility model is a kind of electronic speed-regulating switch that adopts the pressure regulation of controllable silicon phase-shifting commutation, utilizes two-way exchange controllable silicon and two-way exchange diac etc. to form alignment circuit, the size of regulating output voltage, thereby control rotating speed of motor speed.During work, operator's Push switch slide block 2 drives saddle clip 9 and slides on speed adjusting resistance sheet 8, thereby reaches the purpose of regulating electric hand drill speed; And the stroke of switch slide block 2 in switch base 1 determining the electric hand drill maximum amount to decide the size of rotating speed, when the operator inwardly regulates speed governing knob 5, distance widens between preceding projection 10 and the back projection 7, its gap in chute 11 dwindles, thereby the stroke of switch slide block 2 in switch base 1 shortened, and it is also just low that maximum amount is decided rotating speed; When the operator outwards regulated speed governing knob 5, the distance between preceding projection 10 and the back projection 7 was dwindled, and its gap in chute 11 widens, thereby makes the stroke of switch slide block 2 in switch base 1 elongated, and it is also just high that maximum amount is decided rotating speed.
Claims (2)
1, a kind of electric hand drill speed-regulating switch, the shell 4 that comprises stage clip 3, floatless switch seat 1 and switch slide block 2 between switch slide block 2, switch base 1 and the switch slide block 2 in switch base 1, the switch base 1, it is characterized in that: described switch slide block 2 sides are provided with preceding projection 10, be connected with speed governing knob 5 on the switch slide block 2, speed governing knob 5 backs are by the gag lever post 6 that has been threaded, gag lever post 6 is provided with the back projection 7 with preceding projection 10 homonymies, and preceding projection 10 and back projection 7 drop in the chute set on the shell 4 11; Described switch base 1 is provided with the speed adjusting resistance sheet 8 at controllable silicon the two poles of the earth, and contact has the saddle clip 9 that is connected on the switch slide block 2 on the speed adjusting resistance sheet 8.
2, electric hand drill speed-regulating switch according to claim 1 is characterized in that: described switch slide block 2 is provided with steady pin 12 and is inserted in the circumferential groove 13 on the speed governing knob 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93246351 CN2177990Y (en) | 1993-11-30 | 1993-11-30 | Speed regulating switch for hand electrodrill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93246351 CN2177990Y (en) | 1993-11-30 | 1993-11-30 | Speed regulating switch for hand electrodrill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2177990Y true CN2177990Y (en) | 1994-09-21 |
Family
ID=33819058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93246351 Expired - Fee Related CN2177990Y (en) | 1993-11-30 | 1993-11-30 | Speed regulating switch for hand electrodrill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2177990Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100352615C (en) * | 2002-11-06 | 2007-12-05 | 罗伯特·博施有限公司 | Hand-held machine tool with pistol-shape handlebar |
| CN113510276A (en) * | 2021-07-08 | 2021-10-19 | 宁波市鑫磊工具有限公司 | Speed-adjustable electric drill with brush |
-
1993
- 1993-11-30 CN CN 93246351 patent/CN2177990Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100352615C (en) * | 2002-11-06 | 2007-12-05 | 罗伯特·博施有限公司 | Hand-held machine tool with pistol-shape handlebar |
| CN113510276A (en) * | 2021-07-08 | 2021-10-19 | 宁波市鑫磊工具有限公司 | Speed-adjustable electric drill with brush |
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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 |