CN103009324A - Rechargeable screwdriver - Google Patents
Rechargeable screwdriver Download PDFInfo
- Publication number
- CN103009324A CN103009324A CN2012104945472A CN201210494547A CN103009324A CN 103009324 A CN103009324 A CN 103009324A CN 2012104945472 A CN2012104945472 A CN 2012104945472A CN 201210494547 A CN201210494547 A CN 201210494547A CN 103009324 A CN103009324 A CN 103009324A
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- China
- Prior art keywords
- gear mechanism
- output shaft
- screwdriver
- housing
- motor
- 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.)
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- Portable Power Tools In General (AREA)
Abstract
The invention relates to a rechargeable screwdriver. The screwdriver comprises a casing which is provided with a handle, wherein the handle is provided with a switch control device; the casing is provided with a motor, and a gear mechanism using a shaft of the motor as an input shaft; an output shaft of the gear mechanism is connected with a connection head; one part of the connection head, protruding outside the casing, is provided with a screwdriver chuck; and the casing is further provided with a charging device inside which a battery set and a circuit board are arranged. Through the technical scheme, the rechargeable screwdriver can be applied in places without power supply and incapable of being touched by power supply wires, and can automatically realize stop of fastening operation or screw loosening operation.
Description
Technical field
The invention belongs to field of power tools, refer to especially a kind of rechargeable screw driver.
Background technology
At present, existing rechargeable screw driver is with charging device, can use screwdriver in the place that non-transformer or power line can't touch, and enlarged the scope of application of electric screwdriver.But there is following problem in existing electric screwdriver, make the electricity consumption screwdriver when holding screw, if the operator can not in time mention screwdriver, then excessive to the fastening force of screw, and can produce infringement or when the Chinese juniper screw to screw, in the situation with loosened screw, if the operator does not in time mention screwdriver, screwdriver also rotating, causes waste.
In order to improve the defective of electric screwdriver, prior art proposes, and adopts many grades of speed changes to realize the different demands of screw.But this technical scheme also only is the power stage that has changed screwdriver, does not really solve the above problems.
Summary of the invention
The purpose of this invention is to provide a kind of rechargeable screw driver, by the technical program, can use in the place that non-transformer or power line can't touch, and stopping can automatically to realize fastening operation or Unscrewed screw operation the time.
The present invention is achieved by the following technical solutions:
A kind of rechargeable screw driver, include the housing with handle, be provided with switch controlling device on the described handle, housing is provided with motor, and with the gear mechanism of motor reel as power shaft, the output shaft of gear mechanism is connected with connector, the part of the outstanding housing of connector is provided with the chasing tool chuck, also be provided with the charging device that is formed by battery pack and circuit board in the housing, described at gear mechanism output shaft and connector between be provided with gear teeth, described gear teeth group is that packaged type is connected with the output shaft of gear mechanism, is overlapped with pressure sensor in gear teeth; The two ends of difference setting pressure spring in the hole of the output shaft end face of gear teeth group and gear mechanism.
The beneficial effect that the present invention compares with prior art is:
Pass through the technical program, when carrying out the operation of fastening operation or Unscrewed screw, value by the setting pressure sensor, when reaching or reducing to certain force value, thereby connector is disengaged to the output shaft of motor direction pulling with gear mechanism under the effect of power by the compression spring that is connected with the gear teeth group, and stop motion.
Description of drawings
Fig. 1 is structural representation of the present invention.
The specific embodiment
Below describe technical scheme of the present invention in detail by specific embodiment, should be understood that following embodiment only can be used for explaining the present invention and can not be interpreted as to be limitation of the present invention.
As shown in Figure 1, a kind of rechargeable screw driver, include the housing 11 with handle 15, be provided with switch controlling device 20 on the described handle 11, the position that handle 15 is arranged at housing 11 does not have special requirement, be provided with motor 12 in the housing 11, motor 12 is connected with battery pack 14 and control device 20, thinks that motor 12 provides the start and stop of power supply and control motor; And with the gear mechanism 16 of motor reel as power shaft, the part of connector 22 outstanding housings 11 is provided with chasing tool chuck 18, this is prior art, also be provided with the charging device that is formed by battery pack 14 and circuit board 13 in the housing 11, also be provided with the wire that directly is connected with motor on the circuit board 13, to guarantee that screwdriver uses in the cable power situation, described at gear mechanism output shaft 17 and connector 22 between be provided with gear teeth group 23, the output shaft 17 of described gear teeth group 23 and gear mechanism is overlapped with the pressure sensor (not shown) for packaged type is connected in gear teeth group 23; Gear teeth group 23 can surpass under the pressure condition of setting, it is axial force that the radial load that the gear teeth group is obtained partly changes direction, the two ends of compression spring 21 are installed on respectively in the hole of output shaft 17 end faces of gear teeth group 23 and gear mechanism, thereby compressive pressure spring pulling connector moves to motor direction, thereby the gear teeth group is broken away from the output shaft of gear mechanism and quits work.
Claims (1)
1. rechargeable screw driver, include the housing with handle, be provided with switch controlling device on the described handle, housing is provided with motor, and with the gear mechanism of motor reel as power shaft, the output shaft of gear mechanism is connected with connector, the part of the outstanding housing of connector is provided with the chasing tool chuck, also be provided with the charging device that is formed by battery pack and circuit board in the housing, it is characterized in that: described at gear mechanism output shaft and connector between be provided with gear teeth, described gear teeth group is that packaged type is connected with the output shaft of gear mechanism, is overlapped with pressure sensor in gear teeth; The two ends of difference setting pressure spring in the hole of the output shaft end face of gear teeth group and gear mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104945472A CN103009324A (en) | 2012-11-22 | 2012-11-22 | Rechargeable screwdriver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104945472A CN103009324A (en) | 2012-11-22 | 2012-11-22 | Rechargeable screwdriver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103009324A true CN103009324A (en) | 2013-04-03 |
Family
ID=47958719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104945472A Pending CN103009324A (en) | 2012-11-22 | 2012-11-22 | Rechargeable screwdriver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103009324A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2917963Y (en) * | 2006-05-06 | 2007-07-04 | 张卫东 | Force-limited safety labor-saving spanner |
| CN2933728Y (en) * | 2006-08-03 | 2007-08-15 | 李坚忠 | Electric screwdriver |
| US20090120248A1 (en) * | 2005-11-17 | 2009-05-14 | Atlas Copco Tools Ab | Torque Responsive Release Clutch for a Power Nutrunner |
| CN101622106A (en) * | 2007-03-20 | 2010-01-06 | 日立工机株式会社 | Cordless power tool and accommodation case |
| CN201437226U (en) * | 2009-07-10 | 2010-04-14 | 宁波中港工具有限公司 | Charging type screwdriver |
-
2012
- 2012-11-22 CN CN2012104945472A patent/CN103009324A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090120248A1 (en) * | 2005-11-17 | 2009-05-14 | Atlas Copco Tools Ab | Torque Responsive Release Clutch for a Power Nutrunner |
| CN2917963Y (en) * | 2006-05-06 | 2007-07-04 | 张卫东 | Force-limited safety labor-saving spanner |
| CN2933728Y (en) * | 2006-08-03 | 2007-08-15 | 李坚忠 | Electric screwdriver |
| CN101622106A (en) * | 2007-03-20 | 2010-01-06 | 日立工机株式会社 | Cordless power tool and accommodation case |
| CN201437226U (en) * | 2009-07-10 | 2010-04-14 | 宁波中港工具有限公司 | Charging type screwdriver |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130403 |