CN202318153U - Electric screwdriver - Google Patents
Electric screwdriver Download PDFInfo
- Publication number
- CN202318153U CN202318153U CN2011204056775U CN201120405677U CN202318153U CN 202318153 U CN202318153 U CN 202318153U CN 2011204056775 U CN2011204056775 U CN 2011204056775U CN 201120405677 U CN201120405677 U CN 201120405677U CN 202318153 U CN202318153 U CN 202318153U
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Abstract
The utility model relates to the field of electric tools, and aims to provide an electric screwdriver which has high driving power and is convenient to carry. The electric screwdriver comprises a screwdriver head fixing mechanism, a screwdriver rotating screw chuck, a housing, and a torsional moment transmission mechanism, a speed reducing mechanism, a direct current (DC) motor, a power switch and a reversing switch which are mounted in the housing in sequence from front to back, wherein the two ends of the screwdriver rotating screw chuck are respectively connected with the front end of the torsional moment transmission mechanism and the screwdriver head fixing mechanism; the electric screwdriver further comprises a rectifying power source and an externally-connected power line; the rectifying power source is positioned at the back part in the housing and fixedly connected with the housing; the power switch is connected in series between the externally-connected power line and an input terminal of the rectifying power source; and an output terminal of the rectifying power source is electrically connected with the DC motor through the reversing switch. The electric screwdriver has high driving power and is convenient to carry.
Description
Technical field
The utility model relates to field of power tools, especially a kind of driving power electric screw driver bigger and easy to carry.
Background technology
The utility model of Chinese patent notification number CN2787384Y discloses a kind of electric screw driver, and driver bit is electrically connected with direct current generator, and battery plus-negative plate is communicated with two electrodes of direct current generator respectively, on its loop, is serially connected with switch.The weak point of this electric screw driver is: with battery-operated, power is less.The utility model of Chinese patent notification number CN201437226U discloses a kind of rechargeable screw driver, and it comprises screw chuck, connector; Connect ratch, power control switch, handle; It also comprises the charging device that is installed in electric screw driver handle below, three class gear shift rotor, the reversing switch of scalable three class gear shift spinner velocity; Wherein the three class gear shift rotor be connected ratch and connect, connect ratch and be connected with the screw chuck through connector, reversing switch is connected with the three class gear shift rotor.The weak point of this electric screw driver is: charging device is external, carries inconvenience.Carry inconvenient deficiency in order to overcome the prior electric screwdriver less or charging device to be external with the battery driving power, design a kind of driving power electric screw driver bigger and easy to carry, become problem demanding prompt solution.
Novel dual-purpose convenience type electric screw driver reaches the external charging and feeding device of adapted with it.This electric screw driver comprises an ickel-cadmium cell Power Supply Assembly, and this electric screw driver can be worked not connecing under the external power supply occasion; This electric screw driver also can comprise an external confession charging device, through supplying charging device single-phase alternating current capable of using to charge to ickel-cadmium cell or directly utilizing the single phase ac civil power to drive the work of this electric screw driver; This electric screw driver also can comprise a detachable handle, so this electric screw driver both can make cartridge type usefulness, also can make rifle formula usefulness, provides users with the convenient.Deficiency; Therefore, design the electric screw driver that a kind of low frequency, intermediate frequency and high frequency all have better noise elimination effect, become problem demanding prompt solution.
The utility model discloses a kind of electric screw driver; By the transmission of power of direct current generator outputting power through planetary gear speed reducing mechanism deceleration and torsional moment transmission mechanism; Drive the screwdriver rotation that is contained in the driver bit fixed mechanism at last; And the bridge rectifier of being made up of 4 diodes is set between direct current generator and power supply, and make screwdriver both can directly adopt civil power, save auxiliary equipment such as voltage-stabilized power supply and power transformer; Can satisfy the power needs again, be a kind of electric tool very easily that uses and carry all.
Summary of the invention
The purpose of the utility model is to carry inconvenient deficiency in order to overcome present electric screw driver less or charging device to be external with the battery driving power, provides a kind of driving power electric screw driver bigger and easy to carry.
The concrete technical scheme of the utility model is:
A kind of electric screw driver comprises driver bit fixed mechanism, screwdriver rotary screw chuck, housing and is installed on torsional moment transmission mechanism, reducing gear, direct current generator, power switch and the reversing switch in the housing from front to back successively; The button of power switch is positioned at the power switch hole place that the upside of housing is provided with; Reversing switch is positioned at the below of power switch, and the downside of housing is provided with the reversing switch hole, and the toggle of reversing switch stretches out outside the reversing switch hole; The two ends of described screwdriver rotary screw chuck are connected with the driver bit fixed mechanism with the front end of torsional moment transmission mechanism respectively; Described electric screw driver also comprises rectifier power source and circumscripted power line; Described rectifier power source is positioned at the rear portion of housing and is fixedly connected with housing; Described power switch is serially connected with between the input of circumscripted power line and rectifier power source; The output of described rectifier power source is electrically connected with direct current generator through reversing switch.Rectifier power source with being arranged in the housing substitutes battery or external charging device and the rechargeable battery that places in the housing; This electric screw driver driving power is bigger and easy to carry.
As preferably, described electric screw driver is provided with switch by piece and reseting pressuring spring, and it is hinged that described switch is pressed the side of middle part and power switch hole of piece; The rear end that described switch is pressed piece contacts with the button of power switch, and reseting pressuring spring is pressed at switch between the outside of front end and housing of piece.Switch makes the button of pressing power switch laborsaving comfortable by piece and reseting pressuring spring.
As preferably, described housing comprises two symmetrically arranged half housings, is fixedly connected between two and half housings.Easy to assembly.
As preferably, described housing is provided with lasso; Described lasso is positioned at the front end of housing, and lasso is enclosed within outside half housing and with two and half housings and is fixedly connected.It is more firm that two and half housings are connected.
As preferably, the rear end of described housing is provided with elasticity C shape buckle; The openend of elasticity C shape buckle respectively with two and half housing clampings.Making two and half housings connect more firm and be convenient to electric screw driver carries with the time spent does not hang.
As preferably, the rear portion of described housing is provided with louvre, and described louvre is in a row arranged along the length direction of housing.Be convenient to heat radiation.
Compared with prior art, the beneficial effect of the utility model is: one. this electric screw driver driving power is bigger and easy to carry.Two. switch makes the button of pressing power switch laborsaving comfortable by piece and reseting pressuring spring.Three. housing comprises that two symmetrically arranged half housings are easy to assembly.Four. it is more firm that lasso connects two and half housings.Five. elasticity C shape buckle makes two and half housings connect more firm and be convenient to electric screw driver and carries with the time spent does not hang.Six. louvre is convenient to heat radiation.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Among the figure: driver bit fixed mechanism-1, screwdriver rotary screw chuck-2, housing-3, power switch hole-31, reversing switch hole-32, half housing-33, lasso-34, elasticity C shape buckle-35, louvre-36, torsional moment transmission mechanism-4, reducing gear-5, direct current generator-6, power switch-7, button-71, reversing switch-8, toggle-81, rectifier power source-9, circumscripted power line-10, switch are pressed piece-11, reseting pressuring spring-12.
The specific embodiment
Below in conjunction with shown in the accompanying drawing the utility model is described further.
Shown in accompanying drawing 1: a kind of electric screw driver comprises that driver bit fixed mechanism 1, screwdriver rotary screw chuck 2, housing 3, torsional moment transmission mechanism 4, reducing gear 5, direct current generator 6, power switch 7, reversing switch 8, power supply 9, circumscripted power line 10, switch are by piece 11 and reseting pressuring spring 12.
The rear portion of described housing 3 has louvre 36, and louvre 36 becomes two rows to arrange along the length direction of housing 3; Housing 3 comprises that screw connects between 33, two half housings 33 of two symmetrically arranged half housings; Housing 3 has lasso 34; Lasso 34 is positioned at the front end of housing 3, and lasso 34 is enclosed within outside half housing 33 and with two and half housings 33 and is threaded; The rear end of housing 3 has elasticity C shape buckle 35; The openend of elasticity C shape buckle 35 respectively with 33 clampings of two and half housings.
Described reducing gear 5 is a planetary reduction gear, and direct current generator 6 is a direct current permanent magnet motor, and power switch 7 is a press button, and reversing switch 8 is a toggle switch; Described torsional moment transmission mechanism 4, reducing gear 5, direct current generator 6, power switch 7, reversing switch 8 are installed in the housing 3 from front to back successively; The button 71 of power switch 7 is positioned at power switch hole 31 places that the upside of housing 3 is provided with; Reversing switch 8 is positioned at the below of power switch 7, and the downside of housing 3 has reversing switch hole 32, and the toggle 81 of reversing switch 8 stretches out outside the reversing switch hole 32; The two ends of screwdriver rotary screw chuck 2 are connected with driver bit fixed mechanism 1 with the front end of torsional moment transmission mechanism 4 respectively; Rectifier power source 9 is positioned at the rear portion of housing 3 and is connected with housing 3 screws.
Described electric screw driver has switch by piece 11 and reseting pressuring spring 12, and it is hinged that switch is pressed the side of middle part and power switch hole 31 of piece 11; The rear end that switch is pressed piece 11 contacts with the button 71 of power switch 7; Reseting pressuring spring 12 is pressed at switch between the outside of front end and housing 3 of piece 11; Reseting pressuring spring 12 be shaped as taper type; The big end of reseting pressuring spring 12 is pushed down the outside of housing 3, and the small end of reseting pressuring spring 12 is connected with the front end of switch by piece 11.
Described power switch 7 is serially connected with between the input of circumscripted power line 10 and rectifier power source 9; The output of described rectifier power source 9 is electrically connected with direct current generator 6 through reversing switch 8.
This electric screw driver substitutes battery or external charging device and the rechargeable battery that places in the housing with the rectifier power source that is arranged in the housing, and driving power is bigger and easy to carry.Switch makes the button of pressing power switch laborsaving comfortable by piece and reseting pressuring spring.Housing comprises that two symmetrically arranged half housings are easy to assembly.It is more firm that lasso connects two and half housings.Elasticity C shape buckle makes two and half housings connect more firm and is convenient to electric screw driver and carries with time spent not and hang, and louvre is convenient to heat radiation.
It is apparent to one skilled in the art that the utility model can be changed into multiple mode, and the scope that breaks away from the utility model is not thought in such change.The conspicuous modification of the technical staff to said field that all are such is within the scope that is included in this claim.
Claims (7)
1. an electric screw driver comprises driver bit fixed mechanism, screwdriver rotary screw chuck, housing and is installed on torsional moment transmission mechanism, reducing gear, direct current generator, power switch and the reversing switch in the housing from front to back successively; The button of power switch is positioned at the power switch hole place that the upside of housing is provided with; Reversing switch is positioned at the below of power switch, and the downside of housing is provided with the reversing switch hole, and the toggle of reversing switch stretches out outside the reversing switch hole; The two ends of described screwdriver rotary screw chuck are connected with the driver bit fixed mechanism with the front end of torsional moment transmission mechanism respectively; It is characterized in that: described electric screw driver also comprises rectifier power source and circumscripted power line; Described rectifier power source is positioned at the rear portion of housing and is fixedly connected with housing; Described power switch is serially connected with between the input of circumscripted power line and rectifier power source; The output of described rectifier power source is electrically connected with direct current generator through reversing switch.
2. electric screw driver according to claim 1 is characterized in that: described electric screw driver is provided with switch by piece and reseting pressuring spring, and it is hinged that described switch is pressed the side of middle part and power switch hole of piece; The rear end that described switch is pressed piece contacts with the button of power switch, and reseting pressuring spring is pressed at switch between the outside of front end and housing of piece.
3. electric screw driver according to claim 1 and 2 is characterized in that: described housing comprises two symmetrically arranged half housings, is fixedly connected between two and half housings.
4. electric screw driver according to claim 3 is characterized in that: described housing is provided with lasso; Described lasso is positioned at the front end of housing, and lasso is enclosed within outside half housing and with two and half housings and is fixedly connected.
5. electric screw driver according to claim 3 is characterized in that: the rear end of described housing is provided with elasticity C shape buckle; The openend of elasticity C shape buckle respectively with two and half housing clampings.
6. electric screw driver according to claim 4 is characterized in that: the rear end of described housing is provided with elasticity C shape buckle; The openend of elasticity C shape buckle respectively with two and half housing clampings.
7. electric screw driver according to claim 1 and 2 is characterized in that: the rear portion of described housing is provided with louvre, and described louvre is in a row arranged along the length direction of housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204056775U CN202318153U (en) | 2011-10-22 | 2011-10-22 | Electric screwdriver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204056775U CN202318153U (en) | 2011-10-22 | 2011-10-22 | Electric screwdriver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202318153U true CN202318153U (en) | 2012-07-11 |
Family
ID=46430150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204056775U Expired - Fee Related CN202318153U (en) | 2011-10-22 | 2011-10-22 | Electric screwdriver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202318153U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103231351A (en) * | 2013-05-08 | 2013-08-07 | 国家电网公司 | Multi-functional alternating current and direct current electric tool |
| CN103567943A (en) * | 2012-08-03 | 2014-02-12 | 龚海飞 | Improved charging electric screw driver |
| CN105345714A (en) * | 2015-12-16 | 2016-02-24 | 苏州太湖国家旅游度假区希成五金加工厂 | Household low-power electric screwdriver |
| CN105517764A (en) * | 2013-09-11 | 2016-04-20 | 罗伯特·博世有限公司 | Insulation system for a tool and tool having same |
| CN106058099A (en) * | 2016-07-20 | 2016-10-26 | 泉州劲鑫电子有限公司 | High-speed electric tool storage power supply battery |
| CN106737345A (en) * | 2016-12-18 | 2017-05-31 | 滨州学院 | A kind of practical electric screw driver |
-
2011
- 2011-10-22 CN CN2011204056775U patent/CN202318153U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103567943A (en) * | 2012-08-03 | 2014-02-12 | 龚海飞 | Improved charging electric screw driver |
| CN103231351A (en) * | 2013-05-08 | 2013-08-07 | 国家电网公司 | Multi-functional alternating current and direct current electric tool |
| CN105517764A (en) * | 2013-09-11 | 2016-04-20 | 罗伯特·博世有限公司 | Insulation system for a tool and tool having same |
| CN105345714A (en) * | 2015-12-16 | 2016-02-24 | 苏州太湖国家旅游度假区希成五金加工厂 | Household low-power electric screwdriver |
| CN106058099A (en) * | 2016-07-20 | 2016-10-26 | 泉州劲鑫电子有限公司 | High-speed electric tool storage power supply battery |
| CN106058099B (en) * | 2016-07-20 | 2019-01-11 | 泉州劲鑫电子有限公司 | A kind of high speed electric deposit of tools power-supply battery |
| CN106737345A (en) * | 2016-12-18 | 2017-05-31 | 滨州学院 | A kind of practical electric screw driver |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20201022 |