CN2614107Y - Electric tool with three-function knob - Google Patents
Electric tool with three-function knob Download PDFInfo
- Publication number
- CN2614107Y CN2614107Y CN 03221017 CN03221017U CN2614107Y CN 2614107 Y CN2614107 Y CN 2614107Y CN 03221017 CN03221017 CN 03221017 CN 03221017 U CN03221017 U CN 03221017U CN 2614107 Y CN2614107 Y CN 2614107Y
- Authority
- CN
- China
- Prior art keywords
- crank
- clutch
- steel ball
- slide plate
- knob
- 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 discloses an electric tool with a three-function knob and comprises a shell, a transmission mechanism, a beater mechanism, a functional conversion mechanism and a power source. The utility model is characterized in that the functional conversion mechanism comprises a slide board and a clutch, and the clutch comprises a clutch casing, a transmission shaft, a steel ball, an offsetting spring and a crank, the transmission shaft is located in a bore of the crank, a lower end of the crank is located in a clutch slotted hole of the clutch casing, a steel ball hole is arranged on the crank, and the position of the steel ball hole is corresponding to the position of the clutch slotted hole of the clutch casing, accordingly, a steel ball flute is arranged at a corresponding position on the transmission shaft, the steel ball is arranged in the steel ball hole of the crank, an eccentric shaft eccentric positioned at an upper end of the crank is connected with a rear end of a connecting bar of the beater mechanism, the offsetting spring is positioned at the outer rim of the crank through the nesting mode, an upper end of the offsetting spring is fixed on the crank, and a lower end thereof is fixed on the clutch casing, the slide board capable of horizontally moving is arranged between the clutch casing and a sliding sleeve, when the bosses or shifting forks of the front and rear ends of the slide board move toward the front end and the rear end, the bosses or shifting forks respectively lean on the sliding sleeve and the corresponding bosses of the clutch casing.
Description
Technical field
The utility model relates to a kind of electric tool, particularly a kind ofly can be used for boring, the multifunctional electric hammer (claiming professional electric hammer again) of the band toggle of hammer drill, three kinds of functions of single hammer.
Background technology
At present, band toggle electric hammer both domestic and external generally adopts two knobs to realize its three kinds of functions.The gear wheel that knob is used for controlling transmission mechanism and the engagement of pinion with separate; Another knob is used to control separating and combine between crank and the travelling gear, realizes three kinds of function conversion thus.This version, not only operation inconvenience, simultaneously gear wheel reset unreliable, easily and pinion undesired; As use spring reset, too high again to the pressure requirement of spring, and for preventing large and small gear slippage, spring pressure is bigger, causes effort of knob rotation; Rotation with two knobs realizes three kinds of functions in addition, and wherein at least one shelves are unnecessary or neutral gear.
Summary of the invention
The purpose of this utility model is for addressing the above problem, a kind of electric tool with three function knobs is provided, and it is simple in structure, installs with easy to operate, and performance is safe and reliable.
The purpose of this utility model realizes by following approach:
A kind of electric tool with three function knobs, it is by housing, transmission mechanism, beater mechanism, function switching mechanism and power source are formed, wherein, transmission mechanism is by gear wheel, pinion, driving gear, driven gear and turning set constitute, on turning set, be movably installed with can with the sliding sleeve of gear wheel clutch, correspondingly be set with the back-moving spring that sliding sleeve is resetted in the turning set outer end, beater mechanism is by drill steel, block stamp, piston, connecting rod constitutes, they are positioned at housing, the drill steel of beater mechanism, block stamp, piston is arranged in the turning set of transmission mechanism, lower housing portion is connected with power source, it is characterized in that function switching mechanism is made up of slide plate and clutch, clutch is by clutch outer, power transmission shaft, steel ball, back-moving spring and crank constitute, power transmission shaft is arranged in the endoporus of crank, the crank lower end is arranged in the clutch slotted eye of clutch outer, the position of the clutch slotted eye of corresponding clutch outer is provided with steel ball hole on crank, correspondingly, on the power transmission shaft correspondence position, be provided with the steel ball groove, steel ball just is arranged in the steel ball hole of crank, finish crank being connected and disengagement work by the turned position difference of the clutch slotted eye of clutch outer by steel ball and power transmission shaft, the eccentric shaft of crank upper end links to each other with the rear end of connecting rod in the beater mechanism, be set with back-moving spring in the crank outer rim, its upper end is fixed on the crank, its lower end is fixed on the clutch outer, on the housing between clutch outer and the sliding sleeve, be provided with the slide plate that can move horizontally, the boss of slide plate rear and front end or shift fork when move at two ends forwards, backwards, be against respectively on the sliding sleeve and the corresponding boss of clutch outer on.
The utility model advantage compared to existing technology:
The utility model is rational in infrastructure, compact, and is simple to operate, quick, and a knob just can be realized three kinds of functions such as hammer drill, list bore, single hammer, and the location is reliable, installation and easy to use.What is more important organically combines the freewheel clutch principle with the conversion of electric hammer function cleverly, makes its function conversion convenient, light and handy, quick.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the utility model function conversion portion structural representation.
The specific embodiment
The utility model will be further described below in conjunction with accompanying drawing:
As Fig. 1,2, electric tool with three function knobs of the present utility model, it is by housing 1, transmission mechanism 2, beater mechanism 3, function switching mechanism 4 and power source are formed, wherein, transmission mechanism 2 is by gear wheel 9, pinion, driving gear, driven gear and turning set 5 constitute, on turning set 5, be movably installed with can with the sliding sleeve 8 of gear wheel clutch, correspondingly be set with the back-moving spring 6 that sliding sleeve 8 is resetted in turning set 5 outer ends, beater mechanism 3 is by drill steel, block stamp, piston, connecting rod 19 constitutes, they are positioned at housing 1, the drill steel of beater mechanism 3, block stamp, piston is arranged in the turning set 5 of transmission mechanism 2, housing 1 bottom is connected with power source, characteristics of the present utility model are, function switching mechanism 4 is made up of slide plate 18 and clutch 20, clutch 20 is by clutch outer 14, power transmission shaft 13, steel ball 12, back-moving spring 11 and crank 10 constitute, power transmission shaft 13 is arranged in the endoporus of crank 10, crank 10 lower ends are arranged in the clutch slotted eye of clutch outer 14, the position of the clutch slotted eye of corresponding clutch outer 14 is provided with steel ball hole on crank 10, correspondingly, on power transmission shaft 13 correspondence positions, be provided with the steel ball groove, steel ball 12 just is arranged in the steel ball hole of crank 12, finish crank 10 being connected and disengagement work by the turned position difference of the clutch slotted eye of clutch outer 14 by steel ball 12 and power transmission shaft 13, the eccentric shaft of crank 10 upper ends links to each other with the rear end of connecting rod 19 in the beater mechanism 3, be set with back-moving spring 11 in crank 10 outer rims, its upper end is fixed on the crank 10, its lower end is fixed on the clutch outer 14, on the housing between clutch outer 14 and the sliding sleeve 8, be provided with the slide plate 18 that can move horizontally, the boss of slide plate 18 rear and front ends or shift fork when move at two ends forwards, backwards, be against respectively on the sliding sleeve 8 and the corresponding boss of clutch outer 14 on.
In the utility model, on the housing between sliding sleeve 8 and the clutch outer 14, can outwards be connected with the sliding plate support 15 that the cross section is the L type, constitute a chute between it and the housing, slide plate 18 is located in this chute, be connected with knob on the slide plate 18, the knob body 16 of knob passes sliding plate support 15 and is against on the slide plate 18, and the inner face of knob is provided with cam pin, this cam pin is positioned at the vertical elongated slot 7 of slide plate 18 correspondence positions, and the external end of knob is connected with knob handle 17.
Operation principle of the present utility model is as follows, and the knob handle 17 of turning knob drives knob body 16, makes the cam pin on the knob body 16 drive slide plate 18 slips, is in three kinds of duties, and realizes three kinds of functions of electric hammers by back-moving spring 6 and back-moving spring 11.When (one) slide plate 18 mediated, the end tooth of sliding sleeve 8 meshed with gear wheel 9 under back-moving spring 6 effects; Clutch outer 14 is squeezed at least one steel ball 12 or pin in the hole or groove of crank 10 and power transmission shaft 13 under the effect of back-moving spring 11, and power transmission shaft 13 is connected with crank 10, realizes the hammer drill function.(2) slide plate 18 moves to the end tooth end of sliding sleeve 8, and slide plate 18 front ends promote or stir sliding sleeve 8, makes it throw off gear wheel 9, and turning set 5 can not be rotated, and realizes single hammer function.(3) slide plate 18 moves to crank 10 directions, slide plate 18 rear end boss or side top board, clutch outer 14 is pushed open backward and rotated, this moment is when power transmission shaft 13 rotations, just steel ball 12 or the pin that connects power transmission shaft 13 and crank 10 can be extruded in the clutch outer 14 interior type grooves, power transmission shaft 13 and crank 10 are thrown off, realize single rotating function.
Claims (2)
1, a kind of electric tool with three function knobs, it is by housing, transmission mechanism, beater mechanism, function switching mechanism and power source are formed, wherein, transmission mechanism is by gear wheel, pinion, driving gear, driven gear and turning set constitute, on turning set, be movably installed with can with the sliding sleeve of gear wheel clutch, correspondingly be set with the back-moving spring that sliding sleeve is resetted in the turning set outer end, beater mechanism is by drill steel, block stamp, piston, connecting rod constitutes, they are positioned at housing, the drill steel of beater mechanism, block stamp, piston is arranged in the turning set of transmission mechanism, lower housing portion is connected with power source, it is characterized in that function switching mechanism is made up of slide plate and clutch, clutch is by clutch outer, power transmission shaft, steel ball, back-moving spring and crank constitute, power transmission shaft is arranged in the endoporus of crank, the crank lower end is arranged in the clutch slotted eye of clutch outer, the position of the clutch slotted eye of corresponding clutch outer is provided with steel ball hole on crank, correspondingly, on the power transmission shaft correspondence position, be provided with the steel ball groove, steel ball just is arranged in the steel ball hole of crank, finish crank being connected and disengagement work by the turned position difference of the clutch slotted eye of clutch outer by steel ball and power transmission shaft, the eccentric shaft of crank upper end links to each other with the rear end of connecting rod in the beater mechanism, be set with back-moving spring in the crank outer rim, its upper end is fixed on the crank, its lower end is fixed on the clutch outer, on the housing between clutch outer and the sliding sleeve, be provided with the slide plate that can move horizontally, the boss of slide plate rear and front end or shift fork when move at two ends forwards, backwards, be against respectively on the sliding sleeve and the corresponding boss of clutch outer on.
2, the electric tool with three function knobs according to claim 1, it is characterized in that on the housing between described sliding sleeve and the clutch outer, outwards being connected with the sliding plate support that the cross section is the L type, constitute a chute between it and the housing, slide plate is located in this chute, be connected with knob on the slide plate, the knob body of knob passes sliding plate support and is against on the slide plate, and the inner face of knob is provided with cam pin, this cam pin is positioned at the vertical elongated slot of slide plate correspondence position, and the external end of knob is connected with the knob handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03221017 CN2614107Y (en) | 2003-04-08 | 2003-04-08 | Electric tool with three-function knob |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03221017 CN2614107Y (en) | 2003-04-08 | 2003-04-08 | Electric tool with three-function knob |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2614107Y true CN2614107Y (en) | 2004-05-05 |
Family
ID=34244469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03221017 Expired - Fee Related CN2614107Y (en) | 2003-04-08 | 2003-04-08 | Electric tool with three-function knob |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2614107Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101022925B (en) * | 2004-09-17 | 2010-09-29 | 罗伯特·博世有限公司 | Switching device |
| CN104275682A (en) * | 2013-07-05 | 2015-01-14 | 百得有限公司 | Hammer drill |
| CN109404514A (en) * | 2017-08-14 | 2019-03-01 | 苏州宝时得电动工具有限公司 | Support construction, transmission mechanism and the electric tool of eccentric wheel |
-
2003
- 2003-04-08 CN CN 03221017 patent/CN2614107Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101022925B (en) * | 2004-09-17 | 2010-09-29 | 罗伯特·博世有限公司 | Switching device |
| CN104275682A (en) * | 2013-07-05 | 2015-01-14 | 百得有限公司 | Hammer drill |
| US9925653B2 (en) | 2013-07-05 | 2018-03-27 | Black & Decker Inc. | Hammer drill |
| CN104275682B (en) * | 2013-07-05 | 2019-03-15 | 百得有限公司 | Hammer drill |
| CN109404514A (en) * | 2017-08-14 | 2019-03-01 | 苏州宝时得电动工具有限公司 | Support construction, transmission mechanism and the electric tool of eccentric wheel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040505 Termination date: 20100408 |