Electric hand drill drive-type Simple rotary threader
Technical field
The invention belongs to electromechanical tool technical fields, and in particular to a kind of electric hand drill drive-type Simple rotary threader.
Background technique
In construction, electrical spool generallys use pre-buried mode and is arranged in wall.After the completion of building main body again
Cable is installed into electrical spool.It needs first to penetrate steel wire lead into electrical spool when installing cable, cable is tied up in lead
One end, the other end by pulling steel wire lead can be such that cable enters in electrical spool.Draw currently, being penetrated into electrical spool
The work of line is mostly by being accomplished manually.Usually electrical spool is longer and has bending deflecting, therefore there are many tired for artificial threading
Difficulty, when threading, are also more time-consuming and laborious.Also there is the threader of many models in the market, usually structure is complicated, again for these threaders
Amount is big, Portable belt, volume be not big, expensive, and encountering turning can also be difficult to that steel wire lead is made to continue to penetrate sometimes.
Summary of the invention
The present invention in order to solve shortcoming in the prior art, provide it is a kind of it is compact-sized, small in size, easy to carry,
Light-weight, threading conveniently electric hand drill drive-type Simple rotary threader.
In order to solve the above technical problems, the present invention adopts the following technical scheme: electric hand drill drive-type Simple rotary threader,
It is horizontal between rear mounting plate top at the top of front mounting plate to pass through one piece of top including front mounting plate disposed in parallel and rear mounting plate
Plate is fixedly connected, and rear mounting plate is connected with the adjustable locating rack for fastening electric hand drill, and it is logical that front and back is offered on front mounting plate
Saturating mounting hole, is fixedly installed the hollow shaft that rear and front end protrudes from front mounting plate side in mounting hole, after front mounting plate
Side is fixedly installed the rotary damper being sleeved in hollow shaft, and rotation is provided between hollow shaft rear end and rear mounting plate
Mounting shell, is provided with the threading power drive unit with electric hand drill transmission connection in rear mounting plate and in mounting shell, before mounting shell
Side is fixedly connected with the brake disc covered on rotary damper excircle, and front mounting plate lower end is fixedly connected with upper end can be with system
The hand-held of Moving plate location fit limits rotation mechanism.
Threading power drive unit include interior six sides actuating sleeve, the first driving gear, the first driven gear, hollow worm screw,
First upper shaft, the first lower rotary shaft, the second upper shaft, the second lower rotary shaft, upper worm gear, lower worm gear, upper driving gear, lower driving tooth
Wheel, upper driven gear, lower driven gear, upper Wire Wheel and lower Wire Wheel offer in rear mounting plate transparent back and forth logical
Hole and lower through-hole, interior six sides actuating sleeve are rotatably connected in upper through-hole by two first bearings, and hollow worm screw rear end passes through two
A second bearing is rotatably connected in lower through-hole, and the center line of hollow worm screw is overlapped with the center line of hollow shaft, in rear mounting plate
The vertical slot for being connected to upper through-hole and lower through-hole is offered, the first driving gear and the first driven gear are respectively positioned in vertical slot, the
One driving gear is mounted in interior six side's actuating sleeve outer circles, and the first driven gear is mounted in the outer circle of hollow worm screw, and first is main
It is engaged with the first driven gear top moving gear lower part;
The power output end of electric hand drill is connected with outer hexagonal prism, outer hexagonal prism extend into from back to front in six side's actuating sleeves and with
Interior six sides actuating sleeve transmission connection;
First upper shaft, the first lower rotary shaft, the second upper shaft and the second lower rotary shaft are arranged in left-right direction, the second upper shaft and
Second lower rotary shaft is located at the front side of the first upper shaft and the first lower rotary shaft, and upper worm gear and upper driving gear, which are installed on first, to be turned
On axis, lower worm gear and lower driving gear are installed on the first lower rotary shaft, and upper driven gear and upper Wire Wheel are installed in second
In upper shaft, lower driven gear and lower Wire Wheel are installed on the second lower rotary shaft, the both ends of the first upper shaft and first lower turn
The both ends of axis are rotatably connected on the front-rear side walls of mounting shell;Upper driving gear is engaged with upper driven gear, lower driving gear
It is engaged with lower driven gear;The both ends of first upper shaft are rotatably connected to upper backup pad, and the both ends of the first lower rotary shaft rotate
It is connected with lower supporting plate, upper backup pad and lower supporting plate are respectively positioned on the outside of mounting shell, and the both ends of the second upper shaft pass through installation
Shell is simultaneously rotatably connected on upper backup pad, and the both ends of the second lower rotary shaft pass through mounting shell and are rotatably connected on lower supporting plate, on
Wire Wheel and lower Wire Wheel are corresponding up and down, and the pressuring line groove formed between upper Wire Wheel lower part and lower Wire Wheel top is located at hollow shaft
Center line on, be respectively provided between the upper backup pad and lower supporting plate in left side and between the upper backup pad and lower supporting plate on right side
There is the identical crimping mechanism for regulating tightness of a nested structure;
Hollow worm screw front end is extend into upper worm gear and lower worm gear across mounting shell, hollow worm screw upper front end and lower part difference
It engages, is rotatablely connected between hollow worm screw and the rear wall of mounting shell by 3rd bearing, hollow shaft with upper worm gear and lower worm gear
Rear portion and mounting shell front side wall between pass through fourth bearing be rotatablely connected.
Crimping mechanism for regulating tightness includes upper pressure seat, down pressing seat and hold-down bolt, and upper pressure seat is fixedly connected on support
On plate, down pressing seat is fixedly connected on lower supporting plate, and correspondence begins with transparent adjustment hole on upper pressure seat and down pressing seat, is compressed
Bolt is threaded through in adjustment hole, the connection of hold-down bolt threaded upper ends and clamp nut.
Adjustable locating rack includes left locating rod, right locating rod, pressing plate, fixing seat and screw rod, left locating rod and right positioning
Bar is arranged in parallel along the longitudinal direction, the front end of left locating rod and right locating rod be respectively fixedly connected with rear mounting plate left side and
The rear portion of right side, left locating rod and right locating rod offers one group or so corresponding jack, and jack is arranged along the longitudinal direction
There are at least three groups, is provided with the compression bar extending into jack at left and right sides of fixing seat, screw rod is arranged along the longitudinal direction, Gu
Threaded hole is begun in reservation along the longitudinal direction, screw rod is protruded into and is threadedly coupled in threaded hole, on rear side of screw front end and pressing plate
Connection, spiro rod rear end are provided with handle, pressing plate front side and electric hand drill housing rear end portion press fit.
It includes gripping tube, trigger, drive rod, brake bar, spring, upper conduit and downcomer, gripping tube edge that hand-held, which limits rotation mechanism,
Vertical direction setting, gripping tube upper end front side are fixedly connected with front mounting plate lower end by trough plate, are offered on rear side of gripping tube top
Notch, gripping tube front side are fixedly installed support shaft in notch equal-height position, and drive rod is provided with two, and two drive rods are located at
The left and right side of gripping tube, the front end of two drive rods are rotatably connected on the both ends of support shaft, and trigger inclines in the front is high and the back is low
Tiltedly setting, trigger lower end are fixedly connected with two drive rod front ends, drive one be provided in notch between rod rear end
Root pull rod, upper conduit and downcomer are separately fixed at the upper and lower end of inner wall on rear side of gripping tube, on upper conduit and downcomer
End is corresponding and center line is overlapped, and brake bar setting is fixedly installed the connector sleeve being set on pull rod in gripping tube, on brake bar,
The sliding of brake bar upper and lower end is threaded through in conduit and downcomer, is uniformly provided on the excircle of brake disc several
A locating slot, spring are set on brake bar, and spring upper end and lower end cooperate with connector sleeve and the press of downcomer upper end respectively,
Under the action of the spring, brake bar upper end presses against in a locating slot of braking pan bottom.
The left side half of front mounting plate, rear mounting plate and top plate, which is structure as a whole, to be made, front mounting plate, rear mounting plate and top
The right side half of plate, which is structure as a whole, to be made, front mounting plate, rear mounting plate and top plate left side integral structure and front mounting plate,
It is bolted between the integral structure on the right side of mounting plate and top plate by connection afterwards.
By adopting the above technical scheme, the working principle of the invention and process are as follows: before being threaded, first electric hand drill is positioned
It is installed to the rear side of rear mounting plate, outer hexagonal prism is installed at the power drive end of electric hand drill, outer hexagonal prism is extend into interior six
In square actuating sleeve, then two compression bars are inserted respectively into the jack of left locating rod and right locating rod, turn handle, drive spiral shell
Bar extends forward, and pressing plate leading flank is made to press electric hand drill housing rear end portion.After electric hand drill is fixed, further take out steel wire lead from
Hollow worm screw rear end is worn forward, is forward extended out again through hollow shaft after between upper Wire Wheel and lower Wire Wheel.Then spanner is used
Turn clamp nut, clamp nut reduces the distance between upper pressure seat and down pressing seat, during upper backup pad with the first upper shaft is
The heart is rotated to end, and lower supporting plate is slightly rotated upwards centered on the second upper shaft, and not only Wire Wheel can in this way sent under
Line wheel can compress steel wire lead, provide the frictional force for being fed forward steel wire lead enough, and may insure that driving gear begins
Whole to engage with upper driven gear, lower driving gear is engaged with lower driven gear always.
Then operator one is only held by gripping tube, and one is held by the handle of electric hand drill, and hollow shaft front end is extend into electricity
The entrance of gas spool starts electric hand drill, and outer hexagonal prism drives interior six side's actuating sleeves rotation, and first on interior six sides actuating sleeve is actively
Gear drives the rotation of the first driven gear, and the first driven gear drives hollow worm screw rotation, engages with hollow worm screw front end
Upper worm gear and the rotation of lower worm gear, the upper driving gear coaxial with upper worm gear and the lower driving gear coaxial with lower worm gear are also synchronous
Rotation, upper driving gear drive upper driven gear rotation, and lower driving gear drives lower driven gear rotation, same with upper driving gear
The upper Wire Wheel of axis rotates, and rotates with the coaxial lower Wire Wheel of lower driving gear, upper Wire Wheel and lower Wire Wheel drive steel jointly
Silk lead moves forward, and steel wire lead is moved along the hole wall of electrical spool to export direction.When steel wire lead front end is moved to
When at electrical spool bending deflecting, only it is difficult to by the forward movement of steel wire lead by being bent deflecting section;At this point, holding gripping tube
Finger presses trigger squeeze backward, and trigger drives two drive rods to be rotated up by fulcrum of support shaft, between two driving shaft rear ends
Pull rod by actuating sleeve drive brake bar move down, spring is compressed, brake bar upper end be detached from locating slot.Due to mounting shell
Front side wall is rotatably connected in hollow shaft, and mounting shell rear wall is rotatably connected on hollow worm screw, and brake disc is hollow by after liberation
A part of power of worm gear and lower worm gear can drive mounting shell to rotate in worm drive, and the rotation of mounting shell just drives steel wire lead
Rotation, due to the setting of rotary damper, the rotation speed of mounting shell and brake disc is smaller, both can guarantee that hollow worm screw will in this way
A part of power continues to be transmitted to worm gear and lower worm gear, continues to move forward steel wire lead, the speed moved forward certainly
It reduces, and rotation while moving forward of steel wire lead can be driven, be thus easy to pass through the front end of steel wire lead
The bending deflecting section of electrical spool.After bending deflecting section, trigger is unclamped, under the action of the spring, brake bar is to moving up
Dynamic be re-inserted into locating slot positions brake disc, and mounting shell also stops rotating, and steel wire lead, which only moves forward, not to be rotated.When
When encountering the bending deflecting section of electrical spool again, trigger is pressed again.After steel wire lead stretches out the outlet of electrical spool
Close electric hand drill.
Certainly, when threading operation, from trigger is just pressed while starting electric hand drill, brake disc is liberated, mounting shell is always
Rotation is kept, while steel wire lead also moves forward under the clamping of upper Wire Wheel and lower Wire Wheel, this threading mode is led to
The property crossed is fine, but it is longer to thread the time.
Hollow shaft in the present invention not only acts as the effect for being oriented to steel wire lead forward, and hollow shaft is used to pass through the 4th
Bearing is rotatablely connected mounting shell;Hollow worm screw, which not only acts as, reduces the rotation speed of electric hand drill the effect for increasing torque, and
Have the function of being oriented to steel wire lead forward and for being rotatablely connected mounting shell by 3rd bearing.
Rotary damper is to be damped using damping oil to the rotation of brake disc, drive the power of hollow worm screw both can
Dynamic steel wire lead advances, and steel wire lead can be driven to rotate.
The multiple groups jack of the left locating rod of adjustable locating rack and the setting of right locating rod rear end, is applicable to different size
The electric hand drill of (length) is moved forward or rearward pressing plate, fixing seat and screw rod, to have wider versatility.By hand
Electric drill is removed, and the present apparatus is just lighter, and small volume, easy to carry.
Gripping tube not only has the function of convenient space that is hand-held, but also providing installation for brake bar and hide, and brake bar is adopted
With the structure of hand trigger squeeze and spring reset, structure is simple and compact, laborsaving and easy production.
The left side half of front mounting plate, rear mounting plate and top plate, which is structure as a whole, to be made, front mounting plate, rear mounting plate and top
The right side half of plate, which is structure as a whole, to be made, front mounting plate, rear mounting plate and top plate left side integral structure and front mounting plate,
It is bolted between the integral structure on the right side of mounting plate and top plate by connection afterwards.In this way convenient for opening up vertical slot and convenient for peace
Fill the first driving gear and the first driven gear.
In conclusion the present invention uses electric hand drill for driving device, design is rationally, compact-sized, light-weight, small in size,
It during steel wire lead can be made to move forward in threading while rotating, especially suitable for being bent the biggish electrical spool of deflecting
Threading, have good passability.
Detailed description of the invention
Fig. 1 is shape schematic perspective view of the invention;
Fig. 2 is half-sectional perspective view of the invention;
Fig. 3 is floor map of the invention;
Fig. 4 is the top view of Fig. 3.
Specific embodiment
As Figure 1-Figure 4, electric hand drill drive-type Simple rotary threader of the invention, including preceding installation disposed in parallel
Plate 1 and rear mounting plate 2, it is horizontal between the top of front mounting plate 1 and 2 top of rear mounting plate to be fixedly connected by one piece of top plate 3, it is rear to pacify
Loading board 2 is connected with the adjustable locating rack for fastening electric hand drill 4, and mounting hole transparent back and forth is offered on front mounting plate 1, peace
The hollow shaft 5 that rear and front end protrudes from 1 side of front mounting plate is fixedly installed in dress hole, the fixation of 1 trailing flank of front mounting plate is set
Being equipped with the rotary damper 6(being sleeved in hollow shaft 5 is existing mature technology, and specific configuration repeats no more), 5 rear end of hollow shaft
It is rotated between portion and rear mounting plate 2 and is provided with mounting shell 7, be provided in rear mounting plate 2 and in mounting shell 7 and electric hand drill 4 is driven
The threading power drive unit of connection is fixedly connected with the brake disc 8 covered on 6 excircle of rotary damper on front side of mounting shell 7,
1 lower end of front mounting plate, which is fixedly connected with upper end, to limit rotation mechanism with the hand-held of 8 location fit of brake disc.
Threading power drive unit includes interior six sides actuating sleeve 9, the first driving gear 10, the first driven gear 11, hollow
Worm screw 12, the first upper shaft 13, the first lower rotary shaft 14, the second upper shaft 15, the second lower rotary shaft 16, upper worm gear 17, lower worm gear 18,
Upper driving gear 19, lower driving gear, upper driven gear 21, lower driven gear, upper Wire Wheel 23 and lower Wire Wheel 24, it is rear to install
Upper through-hole and lower through-hole transparent back and forth are offered in plate 2, interior six sides actuating sleeve 9 is rotatablely connected by two first bearings 25
In upper through-hole, hollow 12 rear end of worm screw is rotatably connected in lower through-hole by two second bearings 26, in hollow worm screw 12
Heart line is overlapped with the center line of hollow shaft 5, offers the vertical slot 27 for being connected to upper through-hole and lower through-hole in rear mounting plate 2, and first
Driving gear 10 and the first driven gear 11 are respectively positioned in vertical slot 27, and the first driving gear 10 is mounted on interior six side's actuating sleeves 9
In outer circle, the first driven gear 11 is mounted in the outer circle of hollow worm screw 12,10 lower part of the first driving gear and the first driven tooth
Take turns the engagement of 11 tops;
The power output end of electric hand drill 4 is connected with outer hexagonal prism 29, and outer hexagonal prism 29 extend into interior six side's actuating sleeves 9 from back to front
It is interior and with interior six sides actuating sleeve 9 be sequentially connected;
First upper shaft 13, the first lower rotary shaft 14, the second upper shaft 15 and the second lower rotary shaft 16 are arranged in left-right direction, and second
Upper shaft 15 and the second lower rotary shaft 16 are located at the front side of the first upper shaft 13 and the first lower rotary shaft 14, upper worm gear 17 and upper driving tooth
Wheel 19 is installed in the first upper shaft 13, and lower worm gear 18 and lower driving gear are installed on the first lower rotary shaft 14, upper driven
Gear 21 and upper Wire Wheel 23 are installed in the second upper shaft 15, and lower driven gear and lower Wire Wheel 24 are installed under second
In shaft 16, the both ends of the both ends of the first upper shaft 13 and the first lower rotary shaft 14 are rotatably connected on the front-rear side walls of mounting shell 7
On;Upper driving gear 19 is engaged with upper driven gear 21, and lower driving gear is engaged with lower driven gear;The two of first upper shaft 13
End is rotatably connected to upper backup pad 30, and the both ends of the first lower rotary shaft 14 are rotatably connected to lower supporting plate 31, upper backup pad 30
The outside of mounting shell 7 is respectively positioned on lower supporting plate 31, the both ends of the second upper shaft 15 pass through mounting shell 7 and are rotatably connected on branch
On fagging 30, the both ends of the second lower rotary shaft 16 pass through mounting shell 7 and are rotatably connected on lower supporting plate 31, and upper Wire Wheel 23 is under
About 24 Wire Wheel is corresponding, and the pressuring line groove formed between upper 23 lower part of Wire Wheel and lower 24 top of Wire Wheel is located at hollow shaft 5
On center line, between the upper backup pad 30 and lower supporting plate 31 in left side and between the upper backup pad 30 and lower supporting plate 31 on right side
It is provided with the identical crimping mechanism for regulating tightness of a nested structure;
Hollow 12 front end of worm screw is extend into upper worm gear 17 and lower worm gear 18 across mounting shell 7, hollow 12 upper front end of worm screw
It is engaged respectively with upper worm gear 17 and lower worm gear 18 with lower part, passes through third axis between hollow worm screw 12 and the rear wall of mounting shell 7
32 rotation connections are held, are rotatablely connected between the rear portion of hollow shaft 5 and the front side wall of mounting shell 7 by fourth bearing 33.
Crimping mechanism for regulating tightness includes upper pressure seat 34, down pressing seat 35 and hold-down bolt 36, and upper pressure seat 34 is fixedly connected
On upper backup pad 30, down pressing seat 35 is fixedly connected on lower supporting plate 31, and correspondence is begun on upper pressure seat 34 and down pressing seat 35
Under penetrating adjustment hole, hold-down bolt 36 is threaded through in adjustment hole, the connection of 36 threaded upper ends of hold-down bolt and clamp nut 37.
Adjustable locating rack includes left locating rod 38, right locating rod 39, pressing plate 40, fixing seat 41 and screw rod 42, left positioning
Bar 38 and right locating rod 39 are arranged in parallel along the longitudinal direction, and the front end of left locating rod 38 and right locating rod 39 is respectively fixedly connected with
The rear portion of the left side and right side of mounting plate 2 afterwards, left locating rod 38 and right locating rod 39 offer one group or so it is corresponding
Jack 43, jack 43 are provided at least three groups along the longitudinal direction, are provided with one at left and right sides of fixing seat 41 and extend into jack
Compression bar 44 in 43, screw rod 42 are arranged along the longitudinal direction, begin with threaded hole in fixing seat 41 along the longitudinal direction, and screw rod 42 protrudes into
And be threadedly coupled in threaded hole, it is connected on rear side of 42 front end of screw rod and pressing plate 40,42 rear end of screw rod is provided with handle 45, pressing plate 40
Front side and 4 housing rear end portion press fit of electric hand drill.
Hand-held limit rotation mechanism include gripping tube 46, trigger 47, drive rod 48, brake bar 49, spring 50, upper conduit 51 and under
Conduit 52, gripping tube 46 are arranged in the vertical direction, connect on front side of 46 upper end of gripping tube by the way that trough plate 58 and 1 lower end of front mounting plate are fixed
It connects, jagged 53 is opened up on rear side of 46 top of gripping tube, 46 front side of gripping tube is fixedly installed support shaft 54 in 53 equal-height position of notch, drives
Bar 48 is provided with two, and two drive rods 48 are located at the left and right side of gripping tube 46, and the front end of two drive rods 48 turns
The dynamic both ends for being connected to support shaft 54, trigger 47 are obliquely installed in the front is high and the back is low, 47 lower end of trigger and two drive rods 48
Front end is fixedly connected, and a pull rod 55 in notch 53, upper conduit 51 and downcomer are provided between 48 rear end of drive rod
52 are separately fixed at the upper and lower end of 46 rear side inner wall of gripping tube, upper conduit 51 and 52 upper end of downcomer correspondence and center line
It is overlapped, brake bar 49 is arranged in gripping tube 46, and the connector sleeve 56 being set on pull rod 55 is fixedly installed on brake bar 49, brakes
The sliding of 49 upper and lower end of bar is threaded through in conduit 51 and downcomer 52, is uniformly provided on the excircle of brake disc 8
Several locating slots 57, spring 50 are set on brake bar 49,50 top and bottom of spring respectively with connector sleeve 56 and downcomer
The press cooperation of 52 upper ends, under the action of spring 50,49 upper end of brake bar presses against a locating slot 57 of 8 bottom of brake disc
It is interior.
The working principle of the invention and process are as follows: before being threaded, first 4 location and installation of electric hand drill to rear mounting plate 2
Rear side, outer hexagonal prism 29 is installed at the power drive end of electric hand drill 4, by outer hexagonal prism 29 extend into six side's actuating sleeves 9
It is interior, then two compression bars 44 are inserted respectively into the jack 43 of left locating rod 38 and right locating rod 39, turn handle 45, driven
Screw rod 42 extends forward, and 40 leading flank of pressing plate is made to press 4 housing rear end portion of electric hand drill.After electric hand drill 4 is fixed, steel is further taken out
Silk lead 28 worn forward from hollow 12 rear end of worm screw, after between upper Wire Wheel 23 and lower Wire Wheel 24 again through hollow shaft 5 forward
It stretches out.Then clamp nut 37 being turned using spanner, clamp nut 37 reduces the distance between upper pressure seat 34 and down pressing seat 35,
Upper backup pad 30 centered on the first upper shaft 13 to end rotate, lower supporting plate 31 centered on the second upper shaft 15 upwards slightly
Rotation, can not only enable Wire Wheel 23 and lower Wire Wheel 24 compress steel wire lead 28 in this way, provide and be fed forward steel wire enough
The frictional force of lead 28, and may insure that driving gear 19 is engaged with upper driven gear 21 always, lower driving gear is always
It is engaged with lower driven gear.
Then operator one is only held by gripping tube 46, and one is held by the handle of electric hand drill 4, and 5 front end of hollow shaft is protruded into
To the entrance of electrical spool, start electric hand drill 4, outer hexagonal prism 29 drives interior six side's actuating sleeves 9 to rotate, on interior six sides actuating sleeve 9
The first driving gear 10 drive the rotation of the first driven gear 11, the first driven gear 11 drives hollow worm screw 12 to rotate, with sky
12 front end of the heart worm screw engagement upper worm gear 17 and lower worm gear 18 rotation, with upper worm gear 17 coaxial upper driving gear 19 and with
The coaxial lower driving gear of lower worm gear 18 also rotates synchronously, and upper driving gear 19 drives upper driven gear 21 to rotate, lower driving tooth
Wheel drives lower driven gear rotation, coaxial upper Wire Wheel 23 rotation with upper driving gear 19, with lower driving gear it is coaxial under
Wire Wheel 24 rotates, and driving steel wire lead 28 moves forward jointly for upper Wire Wheel 23 and lower Wire Wheel 24, steel wire lead 28 along
The hole wall of electrical spool is mobile to export direction.When 28 front end of steel wire lead is moved at electrical spool bending deflecting, only
It is difficult to by the forward movement of steel wire lead 28 by being bent deflecting section;At this point, the finger for holding gripping tube 46 presses trigger squeeze 47 backward, pull
Machine 47 drives two drive rods 48 to be rotated up with support shaft 54 for fulcrum, and the pull rod 55 between two driving shaft rear ends passes through drive
Dynamic set driving brake bar 49 moves down, and spring 50 is compressed, and 49 upper end of brake bar is detached from locating slot 57.Before mounting shell 7
Side wall is rotatably connected in hollow shaft 5, and 7 rear wall of mounting shell is rotatably connected on hollow worm screw 12, brake disc 8 by after liberation,
Hollow worm screw 12 drives a part of power of upper worm gear 17 and lower worm gear 18 that mounting shell 7 can be driven to rotate, and the rotation of mounting shell 7 is just
Steel wire lead 28 is driven to rotate, due to the setting of rotary damper 6, the rotation speed of mounting shell 7 and brake disc 8 is smaller, in this way
Both can guarantee that hollow worm screw 12 continued a part of power to be transmitted to upper worm gear 17 and lower worm gear 18, continue to make steel wire lead 28 to
Preceding movement, the speed moved forward certainly reduce, and can drive rotation while moving forward of steel wire lead 28, thus
It is easy to the bending deflecting section for making the front end of steel wire lead 28 by electrical spool.After bending deflecting section, trigger is unclamped
47, under the action of spring 50, brake bar 49, which moves up to be re-inserted into locating slot 57, positions brake disc 8, mounting shell 7
Also it stops rotating, 28 forward movements of steel wire lead do not rotate.When encountering the bending deflecting section of electrical spool again, press again
Lower trigger 47.Electric hand drill 4 is closed behind the outlet that steel wire lead 28 stretches out electrical spool.
Certainly, when threading operation, from trigger 47 is just pressed while starting electric hand drill 4, brake disc 8, mounting shell 7 are liberated
Remain rotation, while steel wire lead 28 also moves forward under the clamping of upper Wire Wheel 23 and lower Wire Wheel 24, it is this to wear
The passability of line mode is fine, but it is longer to thread the time.
Hollow shaft 5 in the present invention not only acts as the effect for being oriented to steel wire lead 28 forward, and hollow shaft 5 is for passing through
Fourth bearing 33 is rotatablely connected mounting shell 7;Hollow worm screw 12, which not only acts as to reduce the rotation speed of electric hand drill 4, increases torque
Effect, and have the function of being oriented to steel wire lead 28 forward and for being rotatablely connected mounting shell 7 by 3rd bearing 32.
Rotary damper 6 is to be damped using damping oil to the rotation of brake disc 8.
The multiple groups jack 43 of the left locating rod 38 of adjustable locating rack and the setting of 39 rear end of right locating rod, is applicable to not
The electric hand drill 4 of same size (length), is moved forward or rearward pressing plate 40, fixing seat 41 and screw rod 42, to have more extensively
Versatility.Electric hand drill 4 is removed, the present apparatus is just lighter, and small volume, easy to carry.
Gripping tube 46 not only has the function of convenient space that is hand-held, but also providing installation for brake bar 49 and hide, braking
The structure that bar 49 is resetted using hand trigger squeeze 47 and spring 50, structure is simple and compact, laborsaving and easy production.
The present embodiment not makes any form of restriction shape of the invention, material, structure etc., all according to this hair
Bright technical spirit any simple modification, equivalent change and modification to the above embodiments, belong to the technology of the present invention side
The protection scope of case.