CN104742074A - Electric screwdriver - Google Patents

Electric screwdriver Download PDF

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Publication number
CN104742074A
CN104742074A CN201410523473.XA CN201410523473A CN104742074A CN 104742074 A CN104742074 A CN 104742074A CN 201410523473 A CN201410523473 A CN 201410523473A CN 104742074 A CN104742074 A CN 104742074A
Authority
CN
China
Prior art keywords
output shaft
handle casing
electric screwdriver
survey
wire stripping
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.)
Granted
Application number
CN201410523473.XA
Other languages
Chinese (zh)
Other versions
CN104742074B (en
Inventor
魏淦
陈武
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Chervon Industry Co Ltd
Original Assignee
Nanjing Chervon Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=52560771&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CN104742074(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Nanjing Chervon Industry Co Ltd filed Critical Nanjing Chervon Industry Co Ltd
Priority to CN201410523473.XA priority Critical patent/CN104742074B/en
Priority to GB1505560.1A priority patent/GB2530826B/en
Priority to US14/674,377 priority patent/US9440339B2/en
Publication of CN104742074A publication Critical patent/CN104742074A/en
Priority to DE202015103607.8U priority patent/DE202015103607U1/en
Priority to FR1559224A priority patent/FR3026333B3/en
Priority to US15/225,422 priority patent/US9630302B2/en
Priority to US15/464,725 priority patent/US10272548B2/en
Publication of CN104742074B publication Critical patent/CN104742074B/en
Application granted granted Critical
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B21/00Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00Details of, or accessories for, spanners, wrenches, screwdrivers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/18Devices for illuminating the head of the screw or the nut
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25FCOMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F3/00Associations of tools for different working operations with one portable power-drive means; Adapters therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25FCOMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/001Gearings, speed selectors, clutches or the like specially adapted for rotary tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25FCOMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/02Construction of casings, bodies or handles

Abstract

The invention discloses an electric screwdriver which comprises a motor, a handle outer shell, a transmission device and an output shaft. The motor and the transmission device are arranged in the handle outer shell. The output shaft extends out of the front end of the handle outer shell. The transmission device can be driven by the motor and drive the output shaft to rotate with a first axis as an axis. The electric screwdriver further comprises a power supply and an electrometric component. The power supply is arranged in the handle outer shell and at least comprises a battery. The electrometric component is used for detecting whether an object is electrified. The electrometric component comprises a detecting antenna arranged out of the handle outer shell. The output shaft is provided with an inserting groove. The value range of the maximum size ratio in the output shaft radial direction of the handle outer shell and the inserting groove is larger than or equal to 3.9 and smaller than or equal to 8. The electric screwdriver is ingenious in structure, the structures which achieve various functions are integrated to one whole reasonably, and the electric screwdriver is easy to achieve, low in cost and suitable for promotion.

Description

Electric screwdriver
Technical field
The present invention relates to a kind of electric screwdriver, be specifically related to a kind of Multipurpose electric screwdriver.
Background technology
For electrician, hand screwdriver is indispensable instrument, in addition also needs wire stripper, nipper plier, flashlight, test pencil etc. instrument, in order to complete primary connection work, usually needing to use the above instrument enumerated, and frequently switching.
Still do not have now a kind of rational in infrastructure reliable and the Multipurpose electric screwdriver of above function can be realized.
Summary of the invention
For solving the deficiencies in the prior art, the object of the present invention is to provide a kind of rational in infrastructure, practical Multipurpose electric screwdriver.
In order to realize above-mentioned target, the present invention adopts following technical scheme:
A kind of electric screwdriver, comprise: motor, handle casing, transmission device, output shaft, motor, transmission device are arranged in handle casing, and output shaft stretches out the front end of handle casing, and transmission device can be subject to motor and drive also driver output axle to be that axle rotates with first axle; This electric screwdriver also comprises:
Power supply, to be arranged in handle casing and at least to comprise a battery;
Survey electric assembly, whether charged for inspected object;
Wherein, survey electric assembly and comprise: one is arranged on the exploring antenna outside handle casing, and output shaft is provided with a slot, handle casing and slot are less than or equal to 8 in the span of the ratio of the full-size of output shaft radial direction for being more than or equal to 3.9.
Further, the span of the gearratio between the rotating shaft of motor and output shaft is less than or equal to 100 for being more than or equal to 50.
Further, electric screwdriver also comprises: one is rotationally connected the console switch to handle casing, and console switch is loop configuration and around handle casing.
Further, electric screwdriver also comprises: light fixture, and light fixture comprises:
Illuminating lamp,
Functional lamp,
Lampshade, is arranged on the front end of handle housing;
Illuminating lamp is contained in lampshade inside, and lampshade comprises: lamp shade body and forms, and lamp shade body is made up of light screening material, forms are made up of transparent material, forms are arranged at the position of corresponding illuminating lamp in lamp shade body, and lamp shade body is provided with passing hole, and functional lamp passes lamp shade body by passing hole.
Further, exploring antenna and handle casing lay respectively at the both sides of lampshade.
Further, survey electric assembly and also comprise: an antenna guard shield, antenna guard shield is arranged at the front side of lampshade, protrudes from antenna guard shield and handle casing at the radial upper lamp shade of output shaft.
Further, in the circumference of output shaft, the first axle of exploring antenna output shaft relative to the circumferential position of functional lamp is symmetrical.
Further, survey electric assembly also to comprise: a survey eletric button pressed when electricity surveyed by needs for user; In the circumference of output shaft, survey eletric button between exploring antenna and functional lamp; At output shaft axially, console switch is between exploring antenna and survey eletric button.
Further, electric screwdriver also comprises: wire stripping assembly;
Wire stripping assembly comprises:
What be fixedly connected with handle casing determines wire stripping part,
The dynamic wire stripping part be rotationally connected with handle casing.
Further, survey electric assembly and also comprise: an antenna guard shield, antenna guard shield comprises:
Around the boot main body of output shaft,
Hold the probe portion of exploring antenna;
Wherein, probe portion output shaft axially protrude from boot main body and axis along output shaft extends.
Usefulness of the present invention is: structure is ingenious, one is integrated on the whole by realizing the rational in infrastructure of each function, electric screwdriver of the present invention is made to possess multiple function very necessary and practical in Electrician Operation, avoid the loss in efficiency frequently changed and cause, and itself be easy to realize, cost lower be suitable for promote.
Accompanying drawing explanation
Fig. 1 is the appearance schematic diagram of electric screwdriver of the present invention;
Fig. 2 is the appearance schematic diagram of another angle of electric screwdriver shown in Fig. 1;
Fig. 3 is the internal structure schematic perspective view of electric screwdriver shown in Fig. 1;
Fig. 4 is the internal structure floor map of electric screwdriver shown in Fig. 1;
Fig. 5 is the explosive view of the part-structure in electric screwdriver shown in Fig. 1;
Fig. 6 is the structural representation that electric screwdriver shown in Fig. 1 removes handle casing, light fixture and antenna guard shield;
Fig. 7 is the structural representation of the handle casing in electric screwdriver shown in Fig. 1;
Fig. 8 is the enlarged diagram of the wire stripping assembly in electric screwdriver shown in Fig. 1;
Fig. 9 is the structural representation of a preferred version of wire stripping assembly in electric screwdriver shown in Fig. 1;
Figure 10 is the enlarged diagram of the wire stripping assembly shown in Fig. 9;
Figure 11 is the structural representation of another preferred version of wire stripping assembly in electric screwdriver shown in Fig. 1;
Figure 12 is the enlarged diagram of the wire stripping assembly shown in Figure 11.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, concrete introduction is done to the present invention.
The present invention relates to and a kind ofly criticize the suitable portable electric screwdriver 100 of size with manual screw.
With reference to 1 to Figure 12, electric screwdriver 100 of the present invention mainly comprises: handle casing 11, power supply 12, motor 13, transmission device 14, output shaft 15, circuit unit 16, console switch 17, also comprise: light fixture 2, survey electric assembly 3, wire stripping assembly 4, wherein motor 13, transmission device 14, output shaft 15, console switch 17 and circuit unit 16 are mainly used in realizing screwdriver function, and light fixture 2, survey electric assembly 3 and wire stripping assembly 4 for being integrated in the additional function on this electric screwdriver 100, to realize multifunction, thus can a tractor serves several purposes.Technical scheme of the present invention for convenience of description, make especially giving a definition: the pivot center of definition output shaft 15 is first axle M, the direction at this first axle M place and the direction being parallel to first axle M are axis, circumferencial direction around axis is circumference, perpendicular to axial direction and be radial direction by the direction of the axis of output shaft 15.
Handle casing 11 comprises: for installing the front end of output shaft 15 and the rear end away from output shaft 15, and it is on the one hand for the formation of the handle that can grip, on the other hand the inner receiving space also forming collecting power supply 12, motor 13 and transmission device 14.Concrete, handle casing 11 roughly in " one " font, comprising: the first housing 111, second housing 112 formed respectively, both through hole screws connect as a whole, understandable, the first housing 111 also can be connected by buckle with the second housing 112, thus for convenience detach.Handle casing 11 partial receipt output shaft 15, one end of output shaft 15 be positioned at handle casing 11 front end, that the other end reaches handle casing 11 is outside, the inside, one end that output shaft 15 stretches out handle casing 11 is provided with a slot 151, and this slot 151 is for being connected with the parts such as screwdriver bit, screw.
Transmission device 14 is a general gear-box, it can realize the conversion of rotating speed and moment of torsion, and its inside is provided with axle lock, make moment of torsion can only send output shaft 15 to by motor 13, and when output shaft 15 reverse drive, by locked to output shaft 15 and gear-box, because transmission device 14 is fixed in handle casing 11, so when output shaft 15 is by the locking of axle lock, electric screwdriver can be criticized and criticize use as general manual screw by user.The technological means that the shaft lock structure of single-direction transmission is well known to those skilled in the art, does not add at this and repeats.
Slot 151 is preferably the standard inner hexagonal hole that circumscribed circle diameter is 6.5mm, and the full-size in the radial direction of output shaft 15 of handle casing 11 is preferably 50.
In actual use, from user-friendly angle, wish that handle casing 11 is convenient to grip, so just require the size of joystick shell 11, make it little as much as possible, make it be suitable for staff to grip, especially size in output shaft 15 radial direction, this place's size is fairly obvious on gripping comfortable degree impact.
On the other hand, when criticizing use as general manual screw, wish that again user obtains larger torsion by strength little as far as possible at screwdriver bit place.According to lever principle, in the radial direction of output shaft 15, handle casing 11 is larger, and slot 151 is less, and user is more laborsaving.Generally speaking, for the consideration of structural strength, the size diametrically of slot 151 is unsuitable too small, and in order to the screwdriver bit part of fit standard, its size is relatively-stationary often, so just requires that handle casing 11 is unsuitable too small.
So in order to solve above contradiction, the present invention has considered when designing the comparatively comfortable frictional force that when a series of size of inner hexagonal hole of standard screwdriver bit, the size of general user's palm and user reverse, palm can accept, be determined through experimentation handle casing 11 and slot 151 the ratio of the full-size of output shaft 15 radial direction span for be more than or equal to 3.9 be less than or equal to 8 time, be not only convenient to the manual torsion screwdriver gripping but also can make user comparatively light.
In addition furthermore, when motor 13 rotates, user's handling handle casing 11 can be subject to corresponding reaction force, above to slot 151 and handle casing 11 on the basis that the ratio of the full-size of output shaft 15 radial direction limits, in order to make user when using electric functions, the frictional force that hand bears is comparatively moderate, and make output shaft 15 so that speed and enough moments of torsion go to drive screwdriver bit faster, as a kind of preferred version, the span of the gearratio between the rotating shaft of motor 13 and output shaft 15 is less than or equal to 100 for being more than or equal to 50, namely transmission device 14 gearratio that can provide is within the scope of this, as further preferred, this span is 90 to 100.
Under such gearratio, user can obtain good operating experience.Power supply 12 provides power resources for giving motor 13, and in the present embodiment, power supply 12 to be arranged in handle casing 11 and to comprise at least one battery, and preferably, this battery is lithium battery.This lithium battery can be disposable battery, also can be rechargeable battery.For rechargeable battery, the charging indicator light 163 that one can indicate charged state can be set, when the rechargeable battery is charged, charging indicator light 163 is bright, and be in just in charged state, charging indicator light 163 can show redness, and etc. when being full of electricity, charging indicator light 163 is variable is changed to green.
Motor 13 is connected with transmission device 14, transmission device 14 under the driving of motor 13 further driver output axle 15 with first axle M for axle rotates.In the present embodiment, in order to make the radial dimension of handle casing 11 of the present invention little as far as possible, motor 13 can be micromachine 13, and this micromachine 13 also has larger output torque.
Circuit unit 16 is for controlling whether power supply 12 is that motor 13 is powered.Circuit unit 16 comprises: control circuit board 161, deflector rod switch 162, and wherein control circuit board 161 is provided with the power supply circuits that power supply 12 can be powered for motor 13.Control circuit board 161 is also provided with charging indicator light 163, charging inlet 164.Namely this charging indicator light 163 is the above-described indicator lamp being used to indicate rechargeable battery charged state, charging indicator light 163 is installed on control circuit board 161, and handle casing 11 is provided with the window can observing this charging indicator light 163 state for user.Charging inlet 164 charges for giving the rechargeable lithium battary in above-mentioned power supply 12, it is also installed on control circuit board 161, and handle casing 11 is also provided with and can accommodates and fix the charging slot of this charging inlet 164, preferably, this charging inlet 164 can be USB charging inlet 164, thus can adapt to more charger.
Whether deflector rod switch 162 is fixedly installed in handle casing 11, control power supply 12 exported in motor 13 by electric power for conducting or cut-out power supply circuits.Deflector rod switch 162 is provided with a driving lever 162a that can be struck, by the shake-up of this driving lever 162a or reset deflector rod switch 162 can be made to be communicated with or to disconnect.
Console switch 17 controls the operation of motor 13 by self control circuit assembly 16.Concrete, this console switch 17 is a loop configuration, the console switch 17 of this loop configuration around the outer surface being sheathed on handle casing 11, and form with handle casing 11 and be rotationally connected.Preferably, in order to realize can power supply 12 being made can to power to motor 13 by control circuit assembly 16 when console switch 17 rotates around handle casing 11, also be provided with a shift fork part 18 in the inside of handle casing 11, this shift fork part 18 also can be provided separately with console switch 17 with console switch 17 is one-body molded.
Here be provided separately for console switch 17 and shift fork part 18, more convenient like this dismounting.
Trigger driving lever 162a on deflector rod switch 162 when console switch 17 rotates around handle housing in order to realize shift fork part 18, the inside of console switch 17 is provided with shifting block 171, and setting aside fork 18 in the drive of this shifting block 171 can with console switch 17 synchronous axial system.Concrete, shifting block 171 from the inside of console switch 17 radially to projecting inward, the housing through-hole 113 that the shifting block 171 being provided with this protrusion of confession corresponding on handle casing 11 passes through, thus the inside that shifting block 171 can be deep into handle casing 11 on the console switch 17 be positioned at outside handle casing 11 contacts with shift fork part 18.
Shift fork part 18 comprises: pusher dog portion 181, group leg 182 and connecting portion 183, wherein pusher dog portion 181 is for coordinating with shifting block 171 on console switch 17, pusher dog portion 181 is also provided with the allocating slot 181a that shifting block 171 can be made to embed, this allocating slot 181a extends along being parallel to axial direction, like this when shifting block 171 rotates around first axle M with console switch 17, with under pusher dog portion 181 mating reaction, shift fork part 18 can along with console switch 17 synchronous axial system.Connecting portion 183 is for connecting pusher dog portion 181 and dialling leg 182, and this connecting portion 183 is sheathed on motor 13, thus can support this shift fork part 18.Dial leg 182 to be extended vertically by connecting portion 183, and itself and pusher dog portion 181 lay respectively at connecting portion 183 relative both sides vertically.Dial till leg 182 extends to always and can contact with the driving lever 162a on the deflector rod switch 162 in circuit unit 16, like this, the leg 182 of dialling on it can be made to touch driving lever 162a thus make deflector rod switch 162 be in connected state when shift fork part 18 rotates around first axle M under the drive of console switch 17, thus power supply circuits conducting make power supply 12 can for motor 13 is powered and driver output axle 15 rotates.
Preferably, in order to make can to power for motor 13 by automatic cut-off power 12 when user's unclamp operation switch 17, a reset biased element 19 is also comprised in this electric screwdriver 100, this reset biased element 19 can make it automatically return to reset position by bias voltage shift fork part 18, when shift fork part 18 is positioned at reset position, dial leg 182 and depart from driving lever 162a, deflector rod switch 162 cuts off power supply circuits, thus the electric energy that circuit unit 16 is cut off the electricity supply between 12 and motor 13 is carried, output shaft 15 stops operating.Concrete, this reset biased element 19 is 4 helical springs, this helical spring one end is fixed on connecting portion 183, the other end supports on handle casing 11, like this, when unclamp operation switch 17, made it return to reset position by the helical spring bias voltage shift fork part 18 under elastic force effect compressed, under the mating reaction of simultaneously the pusher dog portion 181 on shift fork part 18 and the shifting block 171 on console switch 17, console switch 17 also returns to initial position.
Below, additional function integrated on electric screwdriver 100 of the present invention is specifically introduced.
Light fixture 2 is arranged at the front end face place outside handle casing 11, is provided separately with handle casing 11, for throwing light on and producing the signal that can be recognized by the human eye.Concrete, light fixture 2 comprises: illuminating lamp 21, functional lamp 22, lighting circuit plate 23, lampshade 24 and fixed mount 25, wherein illuminating lamp 21 plays a role in lighting when dark area works for this electric screwdriver 100, and functional lamp 22 is survey indicator lamp when electric assembly 3 works.Illuminating lamp 21 and functional lamp 22 are all installed on lighting circuit plate 23, and this lighting circuit plate 23 is loop configuration.Lampshade 24 is for package illumination circuit board 23, and lampshade 24 is also loop configuration, and it comprises lamp shade body 241 and forms 242.Lamp shade body 241 is made up of light screening material, forms 242 are made up of transparent material, it is inner that illuminating lamp 21 is positioned at lampshade 24, forms 242 are arranged at the position of corresponding illuminating lamp 21 in lamp shade body 241, lamp shade body 241 is also provided with passing hole 241a, and functional lamp 22 passes lamp shade body 241 by this passing hole 241a thus provides optical signal.Fixed mount 25 is installed on an end of handle casing 11, outside for light fixture 2 being installed on handle casing 11, concrete, fixed mount 25 is loop configuration, the inside of the loop configuration of fixed mount 25 has a pair assembly wall 251, by screw through extending on assembly wall 251 after lamp shade body 241 and lighting circuit plate 23, thus lighting circuit plate 23 and lampshade 24 are installed on fixed mount 25 in the lump.
Preferably, lighting circuit plate 23 is provided with the lighting circuit controlling illuminating lamp 21, under the control of this lighting circuit, illuminating lamp 21 is made to have the function of same step up switch and delay-action, namely while console switch 17 starts, illuminating lamp 21 is controlled bright, and when console switch 17 is closed, illuminating lamp 21 can continue bright a period of time and extinguishes, preferably, can extinguish by the bright 10s to 60s of time delay again.Like this, when when working region is darker, does not see screw, console switch 17 can be started and namely close, thus the capturing position that can throw light in advance, restart and carry out work.
Survey electric assembly 3 whether charged for inspected object, it comprises: exploring antenna 31, survey eletric button 32 and antenna guard shield 33.Exploring antenna 31 is arranged at the outside of handle casing 11, is provided separately with handle casing 11, is positioned at the front side of handle casing 11, the both sides that are positioned at lampshade 24 relative with handle casing 11.Exploring antenna 31 comprises the coil of coiling, when exploring antenna 31 is near electrical body, produces magnetic field in coil, thus sends signal and show that this object is charged.Preferably, survey electric assembly 3 and comprise indicating device for showing detection architecture, this indicating device be such as buzzer or functional lamp 22 or both, here for both, wherein buzzer is arranged at handle casing 11 inside, and functional lamp 22 is positioned at light fixture 2.Press when surveying eletric button 32 for needing to survey electricity for user, this survey eletric button 32 is arranged on handle casing 11, thus handled easily.
Antenna guard shield 33 is arranged at the front of handle casing 11, and be further positioned at the front side of lampshade 24, it comprises: boot main body 331 and probe portion 332.Boot main body 331 is fixedly mounted by screw in the lump around output shaft 15 and lampshade 24 and lighting circuit plate 23, and probe portion 332 is for holding exploring antenna 31.And probe portion 332 output shaft 15 axially protrude from boot main body 331 and axis along output shaft 15 extends forward, thus can not affect while output shaft 15 rotates more easily close to the object of electricity to be measured.Preferably, lampshade 24 also protrudes from antenna guard shield 33 and handle casing 11 in the radial direction of output shaft 15, in other words the radial full-size of lampshade 24 is greater than the maximum radial dimension of antenna guard shield 33 and handle casing 11, the scope that such illuminating lamp 21 can irradiate is larger, is not subject to the obstruction of antenna guard shield 33 and handle casing 11 as much as possible.
Preferably, control circuit board 161 is also provided with and surveys electric switch 34, this survey electric switch 34 with to survey the position of eletric button 32 corresponding and contact with survey eletric button 32, and press survey eletric button 32 time, survey electric switch 34 conducting and control to survey electric assembly 3 and start to survey electricity.
Preferably, in order to ensure the accuracy surveying electricity further, also in the electric assembly 3 of survey, self-checking circuit is provided with, for detecting the integrity surveying electric assembly 3.Under the effect of this self-checking circuit, when triggering survey eletric button 32, if it is intact to survey electric assembly 3, then buzzer rings a sound, and functional lamp 22 dodges, otherwise buzzer does not ring, functional lamp 22 does not work, and illustrates that survey electric installation is bad.Like this, when confirming that the electric assembly 3 of survey is intact, by exploring antenna 31 near electric object to be measured, pin simultaneously and survey eletric button 32, if electric object to be measured has the signal of telecommunication, then buzzer sends sound continuously, functional lamp 22 glimmers continuously.
Wire stripping assembly 4 is integrated in the side outside handle casing 11, and the formation one that caves inward in the side of handle casing 11 is for accommodating the wire stripping groove 114 of wire stripping assembly 4.Wire stripping assembly 4 comprises: determine wire stripping part and dynamic wire stripping part, this determines wire stripping part is a ledger-plate 41, ledger-plate 41 is fixedly installed in the wire stripping groove 114 of handle casing 11, and the knife edge part of ledger-plate 41 exposes handle casing 11 and perpendicular to the length direction of handle casing 11.Preferably, this dynamic wire stripping part be one can band blade also can not the wire stripping button 42 of band blade, here for not band blade.Wire stripping button 42 can relatively ledger-plate 41 near or away from, the outside forming with handle casing 11 being preferably arranged on ledger-plate 41 relatively rotates, its one end is installed on handle casing 11 by a rotation pivot 43, the other end is free end, and rotation pivot 43 direction is perpendicular to the length direction of handle casing 11.One end that wire stripping button 42 is connected with rotation pivot 43 is provided with a back-moving spring 44, back-moving spring 44 props up wire stripping button 42, wire stripping button 42 can be made to automatically reset to initial position, free end is also provided with a spacing preiection 45, it is inner that this spacing preiection 45 is embedded into handle casing 11, the free end of wire stripping button 42 can be prevented away from handle casing 11, thus initial position can be remained on when not triggering wire stripping button 42.Preferably, wire stripping button 42 is also provided with the wire stripping groove 46 of the different circular arc of multiple radius towards the side of ledger-plate 41, wire stripping assembly 4 can not only be made like this can to block cable to be stripped, prevent cable from horizontally slipping, but also this wire stripping assembly 4 can be made can be applicable to peel off the different cable of multiple radius.In the present embodiment, wire stripping button 42 is arranged at the side of handle casing 11, and be positioned at the relatively forward position of handle casing 11 side, like this, can press wire stripping button 42 while a hand grips handle casing 11, one hand can realize operation, and another hand then can be used to pull cable, realize peeling off, handled easily
Preferably, survey exploring antenna 31 in electric assembly 3 also at dynamic wire stripping part with survey between eletric button 32, like this when gripping handle shell 11, can when triggering survey eletric button 32, exploring antenna 31 conveniently touches object to be measured, if this object is cable to be stripped simultaneously, in the uncharged situation of this cable of detection, wire stripping operation can be carried out immediately.
Preferably, in the circumference of output shaft 15, the circumferential position of exploring antenna 31 and functional lamp 22 is symmetrical relative to the first axle M direction of output shaft 15, survey eletric button 32 between exploring antenna 31 and functional lamp 22 simultaneously, the roughly symmetrical position of what in other words exploring antenna 31 was relative with functional lamp 22 the be positioned at both sides of output shaft 15, and survey eletric button 32 and be positioned between the two like this; And at output shaft 15 axially, console switch 17 is at exploring antenna 31 and survey between eletric button 32.Like this, when the handle casing 11 gripping this electric screwdriver 100 makes exploring antenna 31 when the object of electricity to be measured, press and survey eletric button 32, functional lamp 22 sends signal according to detection architecture, at this moment do not need to rotate electric screwdriver 100, this functional lamp 22 directly just can be arrived by eye-observation.
Preferably, in order to the function of integrated bending cable inner core, the part that output shaft 15 stretches out handle casing 11 is provided with a bending hole 152, and this bending hole 152 is revolution body opening, and its axes normal is in first axle M.So, when output shaft 15 is with first axle M pivotable, the cable inner core inserted in bending hole 152 by automatic bending, will improve the efficiency of user's bending.
As the preferred scheme of one of the wire stripping assembly 4 in the present embodiment, wire stripping assembly 5 also can be arranged at the rear end face place of handle casing 11 away from output shaft 15, as shown in Figure 9 and Figure 10.This wire stripping assembly 5 comprises: be fixed on determining wire stripping part and moving wire stripping part in relative rotation by opposite handle shell 11 of handle casing 11 rear end face.Concrete, this determines wire stripping part is a ledger-plate 51, dynamic wire stripping part comprises cutting blade 52 and a wire stripping button 53, the length direction of ledger-plate 51 and cutting blade 52 is perpendicular to the length direction of handle casing 11, cutting blade 52 is fixedly installed on wire stripping button 53, this wire stripping button 53 consists of a rotation pivot 54 and handle casing 11 rear end face and is rotationally connected, the axis direction of this rotation pivot 54 is perpendicular to output shaft 15, and also sheathed one can it be made away from the wire stripping biased element 55 in ledger-plate 51 to precalculated position by bias voltage wire stripping button 53 on this rotation pivot 54, this wire stripping biased element 55 is a torsion spring, an end of this torsion spring props up wire stripping button 53, thus cutting blade 52 and ledger-plate 51 can be made to be in the state of opening.This wire stripping assembly 5 also comprises a stop part 56; the roughly rectangular structure of this stop part 56; the side of its one end and handle casing 11 forms and is rotationally connected; the other end can coordinate with the stopper protrusion 531 be arranged on wire stripping button 53; thus when not using this wire stripping assembly 5; can make wire stripping button 53 overcome torsion spring torsion and relatively ledger-plate 51 be in relatively closed state; like this; staff can either be protected not injure by wire stripping assembly 5, also can extend the service life of wire stripping assembly 5.Understandable, on this wire stripping assembly 5, its ledger-plate 51 also correspondingly respectively can arrange the different semi arch structure of multiple radius with on cutting blade 52.
As the another kind of preferred version of the wire stripping assembly 4 in the present embodiment, wire stripping assembly 6 also can be arranged at handle casing 11 rear end and to extend out or on the fixed frame 61 that connects, as is illustrated by figs. 11 and 12.This fixed frame 61 is roughly U-shaped structure, and the opening of this U-shaped structure is connected with handle casing 11, understandable, and this fixed frame 61 also can be one-body molded with handle casing 11.Wire stripping assembly 6 comprises: determine wire stripping part and dynamic wire stripping part, and this is determined wire stripping part and comprises a ledger-plate 62, and dynamic wire stripping part comprises cutting blade 63 and a trigger piece 64.Wherein ledger-plate 62 is fixedly installed in the relative inner of U-shaped one end closed of fixed frame 61; here inner side refer to fixed frame 61 close one end relatively near the side of handle casing 11; can play the effect of protection like this, and ledger-plate 62 also extends along the direction perpendicular to first axle M.Cutting blade 63 and ledger-plate 62 cooperatively interact, and cutting blade 63 is installed on trigger piece 64, and forms one 60 to 120 angle of spending with trigger piece 64, and be preferably about 90 degree, understandable, cutting blade 63 also can be one-body molded with trigger piece 64.Cutting blade 63 is positioned at fixed frame 61, trigger piece 64 is positioned at outside fixed frame 61, the entirety that trigger piece 64 and cutting blade 63 are formed and fixed frame 61 form being rotationally connected perpendicular to first axle M, and trigger piece 64 controls the relative ledger-plate 62 of cutting blade 63 and opens or close in the process of rotating.In the present embodiment, the blade of ledger-plate 62 and cutting blade 63 is oppositely arranged and mutually staggers, and forms the structure of similar scissors, and such cutting effect is better.Understandable, on this wire stripping assembly 6, its ledger-plate 62 also correspondingly respectively can arrange the different semi arch structure of multiple radius with on cutting blade 63.Preferably, also concaving in the side of handle casing 11 and trap out one for receiving the storage groove 65 of trigger piece 64, like this when not using this wire stripping assembly 6, trigger piece 64 being embedded in storage groove 65, this handle casing 11 of gripping that can be more comfortable.
More than show and describe general principle of the present invention, principal character and advantage.The technical staff of the industry should understand, and above-described embodiment does not limit the present invention in any form, the technical scheme that the mode that all employings are equal to replacement or equivalent transformation obtains, and all drops in protection scope of the present invention.

Claims (10)

1. an electric screwdriver, comprise: motor, handle casing, transmission device, output shaft, described motor, transmission device are arranged in described handle casing, described output shaft stretches out the front end of described handle casing, and described transmission device can be subject to described motor and drives and drive described output shaft to be that axle rotates with first axle; It is characterized in that: described electric screwdriver also comprises:
Power supply, to be arranged in described handle casing and at least to comprise a battery;
Survey electric assembly, whether charged for inspected object;
Wherein, the electric assembly of described survey comprises: one is arranged on the exploring antenna outside described handle casing, described output shaft is provided with a slot, and described handle casing and described slot are less than or equal to 8 in the span of the ratio of the full-size of described output shaft radial direction for being more than or equal to 3.9.
2. electric screwdriver according to claim 1, is characterized in that, the span of the gearratio between the rotating shaft of described motor and described output shaft is less than or equal to 100 for being more than or equal to 50.
3. electric screwdriver according to claim 1, is characterized in that, described electric screwdriver also comprises: one is rotationally connected the console switch to described handle casing, and described console switch is loop configuration and around described handle casing.
4. electric screwdriver according to claim 1, is characterized in that, described electric screwdriver also comprises: light fixture, and described light fixture comprises:
Illuminating lamp,
Functional lamp,
Lampshade, is arranged on the front end of described handle housing;
It is inner that described illuminating lamp is contained in described lampshade, described lampshade comprises: lamp shade body and forms, described lamp shade body is made up of light screening material, described forms are made up of transparent material, described forms are arranged at the position of corresponding described illuminating lamp in described lamp shade body, described lamp shade body is provided with passing hole, and described functional lamp passes described lamp shade body by described passing hole.
5. electric screwdriver according to claim 4, is characterized in that, described exploring antenna and described handle casing lay respectively at the both sides of described lampshade.
6. electric screwdriver according to claim 4, it is characterized in that, the electric assembly of described survey also comprises: an antenna guard shield, and described antenna guard shield is arranged at the front side of described lampshade, and in the radial direction of described output shaft, described lampshade protrudes from described antenna guard shield and described handle casing.
7. electric screwdriver according to claim 4, is characterized in that, in the circumference of described output shaft, the first axle of described exploring antenna described output shaft relative to the circumferential position of described functional lamp is symmetrical.
8. electric screwdriver according to claim 7, is characterized in that, the electric assembly of described survey also comprises: a survey eletric button pressed when electricity surveyed by needs for user; In the circumference of described output shaft, described survey eletric button is between described exploring antenna and described functional lamp; At described output shaft axially, described console switch is between described exploring antenna and described survey eletric button.
9. the electric screwdriver according to claim 1 to 8 any one, is characterized in that, described electric screwdriver also comprises: wire stripping assembly;
Described wire stripping assembly comprises:
What be fixedly connected with described handle casing determines wire stripping part,
The dynamic wire stripping part be rotationally connected with described handle casing.
10. the electric screwdriver according to Claims 1-4 any one, is characterized in that, the electric assembly of described survey also comprises: an antenna guard shield, and described antenna guard shield comprises:
Around the boot main body of described output shaft,
Hold the probe portion of described exploring antenna;
Wherein, described probe portion described output shaft axially protrude from described boot main body and axis along described output shaft extends.
CN201410523473.XA 2013-12-26 2014-09-30 Electric screwdriver Active CN104742074B (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CN201410523473.XA CN104742074B (en) 2013-12-26 2014-09-30 Electric screwdriver
GB1505560.1A GB2530826B (en) 2014-09-30 2015-03-31 Electric screwdriver
US14/674,377 US9440339B2 (en) 2014-09-30 2015-03-31 Electric screwdriver
DE202015103607.8U DE202015103607U1 (en) 2014-09-30 2015-07-09 Electric screw insert
FR1559224A FR3026333B3 (en) 2014-09-30 2015-09-30 ELECTRIC SCREWDRIVER
US15/225,422 US9630302B2 (en) 2014-09-30 2016-08-01 Electric screwdriver
US15/464,725 US10272548B2 (en) 2014-09-30 2017-03-21 Electric screwdriver

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CN2013107327541 2013-12-26
CN201310732754 2013-12-26
CN201410523473.XA CN104742074B (en) 2013-12-26 2014-09-30 Electric screwdriver

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CN201410521101.3A Active CN104742072B (en) 2013-12-26 2014-09-30 Electric screwdriver
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CN201420576231.2U Active CN204171935U (en) 2013-12-26 2014-09-30 Electric screwdriver

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CN104742074B (en) 2017-04-19
CN204171935U (en) 2015-02-25
CN104742072A (en) 2015-07-01
CN104742073A (en) 2015-07-01
CN104742072B (en) 2017-04-19
CN104742073B (en) 2016-09-07

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