CN2608235Y - Electric tool having anti rotating mechanism - Google Patents
Electric tool having anti rotating mechanism Download PDFInfo
- Publication number
- CN2608235Y CN2608235Y CN 03221016 CN03221016U CN2608235Y CN 2608235 Y CN2608235 Y CN 2608235Y CN 03221016 CN03221016 CN 03221016 CN 03221016 U CN03221016 U CN 03221016U CN 2608235 Y CN2608235 Y CN 2608235Y
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- CN
- China
- Prior art keywords
- sliding sleeve
- gear wheel
- turning set
- sleeve
- housing
- 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, consisting of a shell, a drive gear, a beater mechanism, a function transition mechanism and a power source, wherein the drive gear is composed of a big gear wheel, a small gear wheel, a driving gear wheel, a driven gear wheel and a rotary sleeve. A sliding sleeve that can clutch with the big gear wheel is installed on the rotary sleeve, and a return spring that can reset the sliding sleeve is installed outside the rotary sleeve accordingly. The beater mechanism is composed of a drill shank, a punching hammer, a piston and a connecting rod and they are positioned in the shell. The drill shank, the punching hammer and the piston is positioned inside the rotary sleeve of the drive gear, the power source is connected at the lower part of the shell, one or more axial notches are provided on the external circular wall of the slide sleeve, and dowel pin sleeves are fixed on the shell relative to the front part of the sliding sleeve accordingly. Dowel pins are provided in the dowel pin sleeves to engage with the axial notches on the external circular wall of the slide sleeve, and compression springs are arranged between the front ends of the dowel pins and the corresponding internal walls of the dowel pin sleeves. The structure of the utility model is rational, the structure is simple, the cost is low, the installation is convenient and the performance is reliable.
Description
Technical field
The utility model relates to a kind of electric tool, particularly a kind of multifunctional electric hammer with functions such as hammer, hammer drill, brills with brace and connecting rod framework.
Background technology
At present, three function electric hammer or electric pick, mainly by housing, transmission mechanism,, composition such as beater mechanism, function switching mechanism, motor, handle, electric elements and external power supply.For realizing single hammering, then must control the rotation of driving member, especially cut a hole in the work of pricker, cutter shovel, under the effect that adds torsion, can not relative rotary motion be arranged with instrument.For ease of operator's operation, the cutter shovel all can be fixed in 360 ° of any directions or each section angle simultaneously.For realizing this performance, generally adopt a kind of part that is called tooth plate that profile of tooth is arranged both at home and abroad, this part is fixed in the housing, by slippage and the joining gear of turning set (claiming impacting shaft again), throw off rotation, and its tooth is snapped onto in the profile of tooth of tooth plate, fix rotating freely of turning set (claiming impacting shaft again).As patent No. DE4205840 is exactly this version.There are problems in this structure, and (1) tooth plate is complex-shaped, requires will coincide with tooth-formation of gear.(2) material and heat treatment requirements are very high, otherwise in case of impacting or too big frangibility of torsion or broken teeth during operation.(3) because complex-shaped, material and heat treatment requirements height, natural cost are just high.(4) this part generally all is fixed on the bottom of type in the shell spare, because part is little, and housing is dark, installs and keep in repair relatively difficulty.
Summary of the invention
The purpose of this utility model is for overcoming the above problems, provide a kind of reasonable in design, simple in structure, and cost is low, the electric tool of the band rotation preventing mechanism of easy for installation and dependable performance.
The purpose of this utility model realizes by following approach:
A kind of electric tool with rotation preventing mechanism, 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 on sliding sleeve cylindrical wall, being provided with the axial notch of at least one, correspondingly corresponding sliding sleeve forward position is fixed with roller on housing, be provided with in the roller with sliding sleeve cylindrical wall on the pin that matches of axial notch, and be provided with the compression spring between the corresponding inwall of pin front end with roller.
The utility model advantage compared to existing technology:
The utility model is because employing pin or steel ball replace the profile of tooth tooth plate, thereby handling ease, and is cheap.Because pin cylindrical housings support can be born very big radial load (torsion) and vibration, and is safe and reliable, can not rupture.Pin or steel ball are at first packed in the plastic sheath groove, pack into together in the housing with plastic sheath then, so assembling is easily simple.The utility model intention is new, and is simple in structure, suitable, is domestic and international initiative.
Description of drawings
Fig. 1 is the utility model overall structure schematic diagram.
Fig. 2 is internal structure schematic diagram of the present utility model (wherein function switching mechanism part does not all illustrate).
The specific embodiment
The utility model will be further described below in conjunction with accompanying drawing:
As Fig. 1,2, the electric tool of band rotation preventing mechanism of the present utility model, it is by housing 10, transmission mechanism 11, beater mechanism 12, function switching mechanism 13 and power source are formed, wherein, transmission mechanism 11 is by gear wheel 5, pinion, driving gear, driven gear and turning set 6 constitute, on turning set 6, be movably installed with can with the sliding sleeve 4 of gear wheel clutch, correspondingly be set with the back-moving spring 14 that sliding sleeve 4 is resetted in turning set 6 outer ends, beater mechanism 12 is by drill steel, block stamp, piston, connecting rod constitutes, they are positioned at housing 10, the drill steel of beater mechanism 12, block stamp, piston is arranged in the turning set 6 of transmission mechanism 11, housing 10 bottoms are connected with power source, characteristics of the present utility model are, on sliding sleeve 4 cylindrical walls, be provided with the axial notch 15 of at least one, correspondingly corresponding sliding sleeve 4 forward positions are fixed with roller 2 on housing, be provided with in the roller 2 with sliding sleeve 4 cylindrical walls on the pin 3 that matches of axial notch 15, and be provided with compression spring 1 between pin 3 front ends and the roller 2 corresponding inwalls.
In the utility model, be preferably on the sliding sleeve 4 cylindrical walls and be evenly equipped with a plurality of axial notches 15, so that conveniently finish combining of axial notch 15 and pin 3.
The course of work of the present utility model is as follows, when the operator with the knob handle 8 in the function switching mechanism 13 when single hammer (or pick) direction is rotated, knob handle 8 drives knob 7 rotations, knob 7 drives slide plate 9 and moves horizontally, slide plate 9 is provided with the boss or the shift fork that can promote or stir sliding sleeve 4, promote or stir sliding sleeve 4 and on turning set 6, slide, make sliding sleeve 4 throw off gear wheel 5, simultaneously pin 3 (also can adopt steel ball) is inserted in the corresponding axial notch 15 on sliding sleeve 4 cylindricals, when if sliding sleeve 4 and pin 3 are in non-groove location, pin 3 compression compression springs 1 move forward to sliding sleeve 4 and step down, and push away or dial motionless sliding sleeve 4 and make 8 rotations of knob handle not in place with antiskid plate 9.When rotation work head gently or drive machine, pin 3 just is inserted in the axial notch 15 of sliding sleeve 4 under the effect of compression spring 1 at an easy rate.Be fixed on housing 10 on owing to roller 2 this moment, and by the pin above it 3 direction of rotation of sliding sleeve 4 is fixed, and sliding sleeve 4 connects with turning set 6 by key, so turning set 6 direction of rotation are fixed, thereby when realizing single hammer work, the function that working head and cutter, shovel do not rotate.
Claims (2)
1, a kind of electric tool with rotation preventing mechanism, 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 on sliding sleeve cylindrical wall, being provided with the axial notch of at least one, correspondingly corresponding sliding sleeve forward position is fixed with roller on housing, be provided with in the roller with sliding sleeve cylindrical wall on the pin that matches of axial notch, and be provided with the compression spring between the corresponding inwall of pin front end with roller.
2, according to the electric tool of claim 1 band rotation preventing mechanism, it is characterized in that on sliding sleeve cylindrical wall, being evenly equipped with a plurality of axial notches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03221016 CN2608235Y (en) | 2003-04-08 | 2003-04-08 | Electric tool having anti rotating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03221016 CN2608235Y (en) | 2003-04-08 | 2003-04-08 | Electric tool having anti rotating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2608235Y true CN2608235Y (en) | 2004-03-31 |
Family
ID=34162213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03221016 Expired - Fee Related CN2608235Y (en) | 2003-04-08 | 2003-04-08 | Electric tool having anti rotating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2608235Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100515687C (en) * | 2004-12-23 | 2009-07-22 | 百得有限公司 | Power tool |
| CN103659706B (en) * | 2012-09-07 | 2015-11-11 | 瞬丰实业有限公司 | The clutch of dynamic torque tool |
-
2003
- 2003-04-08 CN CN 03221016 patent/CN2608235Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100515687C (en) * | 2004-12-23 | 2009-07-22 | 百得有限公司 | Power tool |
| CN103659706B (en) * | 2012-09-07 | 2015-11-11 | 瞬丰实业有限公司 | The clutch of dynamic torque tool |
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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: 20040331 Termination date: 20100408 |