CN109193475B - Building construction line pipe threading and lead-in method - Google Patents

Building construction line pipe threading and lead-in method Download PDF

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Publication number
CN109193475B
CN109193475B CN201811048480.3A CN201811048480A CN109193475B CN 109193475 B CN109193475 B CN 109193475B CN 201811048480 A CN201811048480 A CN 201811048480A CN 109193475 B CN109193475 B CN 109193475B
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China
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threading
rotating shaft
driving
steel wire
electric
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CN201811048480.3A
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CN109193475A (en
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赵红丽
朱远哲
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赵红丽
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/06Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
    • H02G1/08Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
    • H02G1/085Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling using portable tools
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/06Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
    • H02G1/08Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
    • H02G1/083Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling using lines, e.g. needles, rods or tapes

Abstract

The building construction line pipe threading and leading method comprises the following steps: (1) mounting an electric hand drill on a handheld rotary threading device; (2) the steel wire lead passes through the handheld rotary threading device from back to front and is pressed tightly; (3) the front end of the steel wire lead is extended into the inlet of the electric wire tube, and the handheld rotary threading device is started to drive the steel wire lead to thread along the electric wire tube; (4) and after threading is finished, connecting one or more electric wires to be threaded at the rear end of the steel wire lead to perform lead operation. The electric hand drill is adopted as a driving device, the electric hand drill is reasonable in design, compact in structure, light in weight and small in size, can enable the steel wire lead to rotate simultaneously in the process of moving forwards during threading, is particularly suitable for threading of an electric wire pipe with large bending and turning directions, and has good passing performance.

Description

Building construction line pipe threading and lead-in method
Technical Field
The invention belongs to the technical field of electromechanical tools, and particularly relates to a building construction line pipe threading and lead-out method.
Background
In building construction, the electrical conduit is usually arranged in a wall body in an embedded mode. And after the building main body is finished, the cable is threaded into the electric wire tube. When the cable is worn, the steel wire lead is required to penetrate into the electric wire tube firstly, the cable is bound at one end of the lead, and the cable can enter the electric wire tube by pulling the other end of the steel wire lead. At present, the work of penetrating the lead wire into the electric wire tube is mostly finished manually, and a worker penetrates the wire tube after winding the head of the front end of the steel wire lead wire by using an adhesive tape and slowly pushes the steel wire lead wire forward. Usually, the electric wire tube is longer and can bend and change the direction, therefore there are many difficulties in manual threading, also comparatively waste time and energy during threading. The threading machine has the advantages that the threading machine is complex in structure, heavy in weight, inconvenient to carry, large in size and high in price, and a steel wire lead cannot be continuously threaded when turning and turning are performed.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides the threading and leading method of the building construction line pipe, which is convenient to operate, time-saving, labor-saving and convenient and quick to thread.
In order to solve the technical problems, the invention adopts the following technical scheme: the method for threading and leading the wire through the building construction line pipe comprises the following steps,
(1) installing an electric hand drill on the handheld rotary threading device, wherein the electric hand drill provides driving power for the handheld rotary threading device;
(2) the steel wire lead passes through the handheld rotary threading device from back to front and is pressed tightly;
(3) the front end of the steel wire lead extends into the inlet of the electric wire tube, the handheld rotary threading device is started, the steel wire lead is driven to thread along the electric wire tube, and the handheld rotary threading device is closed after the front end of the steel wire lead extends out of the outlet of the electric wire tube;
(4) one or more electric wires of treating the threading are connected to the rear end of steel wire lead wire, pull the front end of steel wire lead wire in the exit of electric spool, lead in the electric spool through steel wire lead wire with the electric wire, accomplish the threading lead wire operation after the electric wire is worn out from the exit of electric spool.
The handheld rotary threading device comprises a front mounting plate and a rear mounting plate which are arranged in parallel, the level between the top of the front mounting plate and the top of the rear mounting plate is fixedly connected through a top plate, the rear mounting plate is connected with an adjustable positioning frame for mounting and fastening the electric hand drill, a front penetrating mounting hole and a rear penetrating mounting hole are formed in the front mounting plate, a hollow shaft with the front end protruding out of the side surface of the front mounting plate and the rear end protruding out of the side surface of the front mounting plate is fixedly arranged in the mounting hole, a rotary damper sleeved on the hollow shaft is fixedly arranged on the rear side surface of the front mounting plate, a mounting shell is rotatably arranged between the rear end part of the hollow shaft and the rear mounting plate, threading power driving devices connected with the electric hand drill in a transmission mode are arranged in the rear mounting plate and in.
The threading power driving device comprises an inner hexagonal driving sleeve, a first driving gear, a first driven gear, a hollow worm, a first upper rotating shaft, a first lower rotating shaft, a second upper rotating shaft, a second lower rotating shaft, an upper worm wheel, a lower worm wheel, an upper driving gear, a lower driving gear, an upper driven gear, a lower driven gear, an upper wire feeding wheel and a lower wire feeding wheel, wherein an upper through hole and a lower through hole which are through front and back are arranged in a rear mounting plate, the inner hexagonal driving sleeve is rotatably connected in the upper through hole through two first bearings, the rear end of the hollow worm is rotatably connected in the lower through hole through two second bearings, the central line of the hollow worm is superposed with the central line of the hollow shaft, a vertical groove which is communicated with the upper through hole and the lower through hole is arranged in the rear mounting plate, the first driving gear and the first driven gear are both positioned in the vertical groove, the first driving gear is arranged on the outer circle of the inner, the lower part of the first driving gear is meshed with the upper part of the first driven gear;
the power output end of the electric hand drill is connected with an outer hexagonal column, and the outer hexagonal column extends into the inner hexagonal driving sleeve from back to front and is in transmission connection with the inner hexagonal driving sleeve;
the first upper rotating shaft, the first lower rotating shaft, the second upper rotating shaft and the second lower rotating shaft are arranged along the left-right direction, the second upper rotating shaft and the second lower rotating shaft are positioned on the front sides of the first upper rotating shaft and the first lower rotating shaft, the upper worm wheel and the upper driving gear are both mounted on the first upper rotating shaft, the lower worm wheel and the lower driving gear are both mounted on the first lower rotating shaft, the upper driven gear and the upper wire feeding wheel are both mounted on the second upper rotating shaft, the lower driven gear and the lower wire feeding wheel are both mounted on the second lower rotating shaft, and both ends of the first upper rotating shaft and both ends of the first lower rotating shaft are both rotatably connected to the front side wall and the rear side wall of the; the upper driving gear is meshed with the upper driven gear, and the lower driving gear is meshed with the lower driven gear; the two ends of the first upper rotating shaft are rotatably connected with upper supporting plates, the two ends of the first lower rotating shaft are rotatably connected with lower supporting plates, the upper supporting plates and the lower supporting plates are positioned outside the mounting shell, the two ends of the second upper rotating shaft penetrate through the mounting shell and are rotatably connected to the upper supporting plates, the two ends of the second lower rotating shaft penetrate through the mounting shell and are rotatably connected to the lower supporting plates, the upper wire feeding wheel and the lower wire feeding wheel vertically correspond to each other, wire pressing grooves formed between the lower part of the upper wire feeding wheel and the upper part of the lower wire feeding wheel are positioned on a central line of the hollow shaft, and a set of wire pressing tightness adjusting mechanism with the same structure is respectively arranged between the upper supporting plate and the lower supporting plate on the;
the front end of the hollow worm penetrates through the mounting shell and extends into a position between the upper worm wheel and the lower worm wheel, the upper portion and the lower portion of the front end of the hollow worm are respectively meshed with the upper worm wheel and the lower worm wheel, the hollow worm is rotatably connected with the rear side wall of the mounting shell through a third bearing, and the rear portion of the hollow shaft is rotatably connected with the front side wall of the mounting shell through a fourth bearing.
The line ball elasticity adjustment mechanism includes and presses the seat, presses seat and gland bolt down on, and on pressing a fixed connection in last backup pad, on pressing a fixed connection backup pad down, on pressing a seat and pressing a seat down and correspond and begin to have penetrating regulation hole from top to bottom, gland bolt wears to establish in the regulation hole, gland bolt upper end threaded connection and gland nut.
Locating rack includes left positioning pole with adjustable, right side locating pole, the clamp plate, fixing base and screw rod, left side locating pole and right side locating pole are along fore-and-aft direction parallel arrangement, left side portion and right side portion at the rear mounting panel of left side locating pole and right side locating pole front end fixed connection respectively, the jack that corresponds about a set of is all seted up at the rear portion of left side locating pole and right side locating pole, the jack is provided with three at least groups along the fore-and-aft direction, the fixing base left and right sides all is provided with a depression bar that stretches into in the jack, the screw rod sets up along the fore-and-aft direction, begin threaded hole along the fore-and-aft direction in the fixing base, the screw rod stretches into and threaded connection is downthehole, the screw rod front end.
The hand-held type rotation limiting mechanism comprises a holding tube, a trigger, driving rods, a brake rod, a spring, an upper guide tube and a lower guide tube, wherein the holding tube is arranged along the vertical direction, the front side of the upper end of the holding tube is fixedly connected with the lower end of a front mounting plate through a groove-shaped plate, a notch is formed in the rear side of the upper part of the holding tube, a support shaft is fixedly arranged at the front side of the holding tube at a position as high as the notch, the two driving rods are respectively arranged on the left side and the right side of the holding tube, the front ends of the two driving rods are respectively and rotatably connected with the two end parts of the support shaft, the trigger is obliquely arranged at a high position and a low position in front and back, the lower end part of the trigger is fixedly connected with the front ends of the two driving rods, a pull rod positioned in the notch is arranged between the rear ends of the driving rods, the upper guide tube and the, the upper end and the lower end of the brake rod are slidably arranged in the upper guide pipe and the lower guide pipe in a penetrating mode, a plurality of positioning grooves are uniformly formed in the outer circumference of the brake disc, the spring is sleeved on the brake rod, the upper end and the lower end of the spring are respectively in press fit with the tops of the connecting sleeve and the upper end of the lower guide pipe, and under the action of the spring, the upper end of the brake rod is pressed in one positioning groove in the bottom of the brake disc.
The specific operation process of the step (1) is that before threading, the electric hand drill is positioned and installed on the rear side of the rear installation plate, the power driving end of the electric hand drill is firstly installed with an outer hexagonal column, then the outer hexagonal column extends into the inner hexagonal drive sleeve, then two pressure rods are respectively inserted into the insertion holes of the left positioning rod and the right positioning rod, the handle is screwed, the drive screw rod extends forwards, and the front side face of the pressure plate is tightly pressed on the rear end part of the electric hand drill shell.
The specific operation process of the step (2) is that after the electric hand drill is firmly installed and fixed, the steel wire lead is taken out and penetrates forwards from the rear end of the hollow worm, passes through the space between the upper wire feeding wheel and the lower wire feeding wheel and then extends forwards through the hollow shaft; then use the spanner to twist and move gland nut, gland nut will go up the pressure seat and reduce the distance between the pressure seat down, go up the backup pad and use first pivot of going up to rotate slightly downwards as the center, the backup pad uses the second to go up the pivot and upwards rotate slightly as the center, not only can make and go up the wire feeding wheel and go down the wire feeding wheel and compress tightly the steel wire lead wire like this, provide enough frictional force that carries the steel wire lead wire forward, and can ensure in addition that go up the driving gear and last driven gear meshing all the time, the driving gear is with lower driven gear meshing all the time down.
The specific operation process of the step (3) is,
an operator holds the holding tube with one hand and holds the handle of the electric hand drill with the other hand, the front end of the hollow shaft extends into the inlet of the electric wire tube, the electric hand drill is started, the outer hexagonal column drives the inner hexagonal driving sleeve to rotate, the first driving gear on the inner hexagonal driving sleeve drives the first driven gear to rotate, the first driven gear drives the hollow worm to rotate, an upper worm wheel and a lower worm wheel which are engaged with the front end part of the hollow worm rotate, an upper driving gear which is coaxial with the upper worm wheel and a lower driving gear which is coaxial with the lower worm wheel also synchronously rotate, the upper driving gear drives an upper driven gear to rotate, the lower driving gear drives a lower driven gear to rotate, the upper wire feeding wheel coaxial with the upper driving gear rotates, the lower wire feeding wheel coaxial with the lower driving gear rotates, the upper wire feeding wheel and the lower wire feeding wheel jointly drive the steel wire lead to move forwards, and the steel wire lead moves towards the outlet direction along the hole wall of the electric wire tube; when the front end of the steel wire lead moves to the bending and turning position of the electric wire tube, the steel wire lead only moves forwards and is difficult to pass through the bending and turning section; at the moment, fingers holding the holding tube press the trigger backwards, the trigger drives the two driving rods to rotate upwards by taking the supporting shaft as a fulcrum, the pull rod between the rear ends of the two driving rods drives the brake rod to move downwards through the driving sleeve, the spring is compressed, and the upper end of the brake rod is separated from the positioning groove; because the front side wall of the mounting shell is rotationally connected to the hollow shaft, the rear side wall of the mounting shell is rotationally connected to the hollow worm, after the brake disc is liberated, the hollow worm drives a part of power of the upper worm wheel and the lower worm wheel to drive the mounting shell to rotate, and the rotation of the mounting shell drives the steel wire lead to rotate; after the turning section is bent, the trigger is loosened, the brake rod moves upwards under the action of the spring and is inserted into the positioning groove again to position the brake disc, the mounting shell stops rotating, and the steel wire lead only moves forwards and does not rotate; when the bending and turning section of the electric line pipe is encountered again, the trigger is pressed down again; and closing the electric hand drill until the steel wire lead extends out of the outlet of the electric wire tube.
The structure of the front mounting plate, the rear mounting plate and the top plate are made into a whole in the left side, the structure of the front mounting plate, the rear mounting plate and the top plate is made into a whole in the right side, and the structure of the front mounting plate, the rear mounting plate and the top plate is connected with the structure of the front mounting plate, the rear mounting plate and the top plate in the right side through connecting bolts.
By adopting the technical scheme, when the electric hand drill is started in threading operation, the trigger can be pressed down to release the brake disc, the mounting shell always keeps rotating, and meanwhile, the steel wire lead also moves forwards under the clamping of the upper wire feeding wheel and the lower wire feeding wheel, so that the threading mode has good passing performance and longer threading time.
The hollow shaft not only plays a role of guiding the steel wire lead forwards, but also is used for being rotatably connected with the mounting shell through the fourth bearing; the hollow worm not only serves to reduce the rotational speed of the electric hand drill and increase the torque, but also serves to guide the wire lead forward and for rotationally connecting the mounting housing via a third bearing.
The rotary damper adopts damping oil to damp the rotation of the brake disc, so that the power of the hollow worm can drive the steel wire lead to move forward and drive the steel wire lead to rotate.
The multiple groups of jacks arranged at the rear end parts of the left positioning rod and the right positioning rod of the adjustable positioning frame are applicable to electric hand drills with different sizes (lengths), so that the pressing plate, the fixing seat and the screw rod move forwards or backwards, and the adjustable positioning frame has wider universality. The electric hand drill is taken down, so that the device is relatively portable, small in size and easy to carry.
The holding tube not only has the effect of convenient holding, provides installation and hidden space for the brake lever moreover, and the brake lever adopts the structure that hand trigger and spring reset, and simple structure and compactness are laborsaving and make easily.
The structure of the front mounting plate, the rear mounting plate and the top plate are made into a whole in the left side, the structure of the front mounting plate, the rear mounting plate and the top plate is made into a whole in the right side, and the structure of the front mounting plate, the rear mounting plate and the top plate is connected with the structure of the front mounting plate, the rear mounting plate and the top plate in the right side through connecting bolts. Thus, the vertical groove is convenient to open and the first driving gear and the first driven gear are convenient to mount.
In conclusion, the electric hand drill is adopted as the driving device, the electric hand drill is reasonable in design, compact in structure, light in weight and small in size, can enable the steel wire lead to rotate simultaneously in the process of moving forwards during threading, is particularly suitable for threading of an electric wire pipe which is bent and turned greatly, and has good passing performance.
Drawings
Fig. 1 is a schematic view of the external three-dimensional structure of the hand-held rotary threading device of the invention;
fig. 2 is a half-cut perspective view of the hand-held rotary threading device of the present invention;
fig. 3 is a schematic plan view of a hand-held rotary threading device of the present invention;
fig. 4 is a top view of fig. 3.
Detailed Description
The invention relates to a building construction line pipe threading and leading method, which comprises the following steps:
(1) the electric hand drill 4 is arranged on the handheld rotary threading device, and the electric hand drill 4 provides driving power for the handheld rotary threading device;
(2) passing the wire lead 28 through the hand-held rotary threading device from the back to the front and pressing the wire lead 28;
(3) the front end of the steel wire lead 28 is extended into the inlet of the electric wire tube, the handheld rotary threading device is started, the steel wire lead 28 is driven to thread along the electric wire tube, and the handheld rotary threading device is closed after the front end of the steel wire lead 28 extends out of the outlet of the electric wire tube;
(4) one or more wires to be threaded are connected to the rear end of the steel wire lead 28, the front end of the steel wire lead 28 is pulled at the outlet of the electric line pipe, and the wires are led into the electric line pipe through the steel wire lead 28 until the wire passes out of the outlet of the electric line pipe to complete the threading and lead operation.
As shown in fig. 1-4, the hand-held rotary threading device comprises a front mounting plate 1 and a rear mounting plate 2 which are arranged in parallel, the top of the front mounting plate 1 is fixedly connected with the top of the rear mounting plate 2 through a top plate 3, the rear mounting plate 2 is connected with an adjustable positioning frame for fastening the electric hand drill 4, the front mounting plate 1 is provided with a front-rear through mounting hole, a hollow shaft 5 with a front end and a rear end protruding out of the side surface of the front mounting plate 1 is fixedly arranged in the mounting hole, the rear side surface of the front mounting plate 1 is fixedly provided with a rotary damper 6 (which is the prior mature technology and is not described in detail) sleeved on the hollow shaft 5, a mounting shell 7 is rotatably arranged between the rear end of the hollow shaft 5 and the rear mounting plate 2, threading power driving devices in the rear mounting plate 2 and in the mounting shell 7 are in transmission connection with the electric hand drill, the lower end of the front mounting plate 1 is fixedly connected with a handheld rotation limiting mechanism, the upper end of which can be matched with the brake disc 8 in a positioning way.
The threading power driving device comprises an inner hexagonal driving sleeve 9, a first driving gear 10, a first driven gear 11, a hollow worm 12, a first upper rotating shaft 13, a first lower rotating shaft 14, a second upper rotating shaft 15, a second lower rotating shaft 16, an upper worm wheel 17, a lower worm wheel 18, an upper driving gear 19, a lower driving gear, an upper driven gear 21, a lower driven gear, an upper wire feeding wheel 23 and a lower wire feeding wheel 24, wherein an upper through hole and a lower through hole which are through front and back are formed in a rear mounting plate 2, the inner hexagonal driving sleeve 9 is rotatably connected in the upper through hole through two first bearings 25, the rear end of the hollow worm 12 is rotatably connected in the lower through hole through two second bearings 26, the central line of the hollow worm 12 is superposed with the central line of the hollow shaft 5, a vertical groove 27 for communicating the upper through hole with the lower through hole is formed in the rear mounting plate 2, and the first driving gear 10 and the first driven gear, a first driving gear 10 is arranged on the excircle of the inner hexagonal driving sleeve 9, a first driven gear 11 is arranged on the excircle of the hollow worm 12, and the lower part of the first driving gear 10 is meshed with the upper part of the first driven gear 11;
the power output end of the electric hand drill 4 is connected with an outer hexagonal column 29, and the outer hexagonal column 29 extends into the inner hexagonal driving sleeve 9 from back to front and is in transmission connection with the inner hexagonal driving sleeve 9;
the first upper rotating shaft 13, the first lower rotating shaft 14, the second upper rotating shaft 15 and the second lower rotating shaft 16 are arranged along the left-right direction, the second upper rotating shaft 15 and the second lower rotating shaft 16 are positioned at the front sides of the first upper rotating shaft 13 and the first lower rotating shaft 14, the upper worm wheel 17 and the upper driving gear 19 are both installed on the first upper rotating shaft 13, the lower worm wheel 18 and the lower driving gear are both installed on the first lower rotating shaft 14, the upper driven gear 21 and the upper wire feeding wheel 23 are both installed on the second upper rotating shaft 15, the lower driven gear and the lower wire feeding wheel 24 are both installed on the second lower rotating shaft 16, and both ends of the first upper rotating shaft 13 and both ends of the first lower rotating shaft 14 are both rotatably connected to the front side wall and the rear side wall of the installation; the upper driving gear 19 is meshed with the upper driven gear 21, and the lower driving gear is meshed with the lower driven gear; the two ends of the first upper rotating shaft 13 are rotatably connected with upper supporting plates 30, the two ends of the first lower rotating shaft 14 are rotatably connected with lower supporting plates 31, the upper supporting plates 30 and the lower supporting plates 31 are positioned outside the mounting shell 7, the two ends of the second upper rotating shaft 15 penetrate through the mounting shell 7 and are rotatably connected onto the upper supporting plates 30, the two ends of the second lower rotating shaft 16 penetrate through the mounting shell 7 and are rotatably connected onto the lower supporting plates 31, the upper wire feeding wheel 23 and the lower wire feeding wheel 24 vertically correspond to each other, a wire pressing groove formed between the lower part of the upper wire feeding wheel 23 and the upper part of the lower wire feeding wheel 24 is positioned on a central line of the hollow shaft 5, and a set of wire pressing tightness adjusting mechanism with the same structure is respectively arranged between the upper supporting plate 30 and the lower supporting plate 31 on the left;
the front end of the hollow worm 12 penetrates through the mounting shell 7 and extends into a position between the upper worm wheel 17 and the lower worm wheel 18, the upper portion and the lower portion of the front end of the hollow worm 12 are respectively meshed with the upper worm wheel 17 and the lower worm wheel 18, the hollow worm 12 is rotatably connected with the rear side wall of the mounting shell 7 through a third bearing 32, and the rear portion of the hollow shaft 5 is rotatably connected with the front side wall of the mounting shell 7 through a fourth bearing 33.
The line ball elasticity adjustment mechanism includes and presses seat 34, pushes down seat 35 and clamp bolt 36 on, and on 34 fixed connection of last pressure seat on last backup pad 30, on pushing down seat 35 fixed connection lower backup pad 31, on press seat 34 and push down and correspond on the seat 35 and begin to have upper and lower penetrating adjustment hole, clamp bolt 36 wears to establish in the adjustment hole, clamp bolt 36 upper end threaded connection and gland nut 37.
The adjustable locating rack comprises a left locating rod 38, a right locating rod 39, a pressing plate 40, a fixed seat 41 and a screw rod 42, the left locating rod 38 and the right locating rod 39 are arranged in parallel along the front and back directions, the front ends of the left locating rod 38 and the right locating rod 39 are respectively and fixedly connected to the left side portion and the right side portion of the rear mounting plate 2, a set of jacks 43 corresponding to the left and the right are formed in the rear portions of the left locating rod 38 and the right locating rod 39, at least three sets of the jacks 43 are formed along the front and back directions, a pressing rod 44 stretching into the jacks 43 is arranged on the left and the right sides of the fixed seat 41, the screw rod 42 is arranged along the front and back directions, threaded holes are formed in the fixed seat 41 in the front and back directions, the screw rod 42 stretches into and is connected to the threaded holes, the front end of the screw.
The hand-held rotation limiting mechanism comprises a holding tube 46, a trigger 47, driving rods 48, a brake rod 49, a spring 50, an upper guide tube 51 and a lower guide tube 52, wherein the holding tube 46 is arranged along the vertical direction, the front side of the upper end of the holding tube 46 is fixedly connected with the lower end of a front mounting plate 1 through a groove plate 58, a notch 53 is formed in the rear side of the upper part of the holding tube 46, a support shaft 54 is fixedly arranged on the front side of the holding tube 46 at the height of the notch 53, two driving rods 48 are arranged, the two driving rods 48 are respectively positioned on the left side and the right side of the holding tube 46, the front ends of the two driving rods 48 are respectively and rotatably connected with the two end parts of the support shaft 54, the trigger 47 is obliquely arranged in a manner that the front part is higher than the rear part, the lower end part of the trigger 47 is fixedly connected with the front ends of the two driving rods 48, a pull rod 55 positioned in the notch 53 is arranged between, the brake lever 49 is arranged in the holding tube 46, the brake lever 49 is fixedly provided with a connecting sleeve 56 sleeved on the pull rod 55, the upper end part and the lower end part of the brake lever 49 are slidably arranged in the upper guide tube 51 and the lower guide tube 52, the outer circumference of the brake disc 8 is uniformly provided with a plurality of positioning grooves 57, the spring 50 is sleeved on the brake lever 49, the upper end and the lower end of the spring 50 are respectively in press fit with the upper end parts of the connecting sleeve 56 and the lower guide tube 52, and under the action of the spring 50, the upper end of the brake lever 49 is pressed in one positioning groove 57 at the bottom.
The specific threading process of the steps (1) to (3) in the invention comprises the following steps: before threading, the electric hand drill 4 is positioned and installed on the rear side of the rear installation plate 2, the power driving end of the electric hand drill 4 is installed with the outer hexagonal column 29, the outer hexagonal column 29 extends into the inner hexagonal driving sleeve 9, then the two pressure rods 44 are respectively inserted into the insertion holes 43 of the left positioning rod 38 and the right positioning rod 39, the handle 45 is screwed, the driving screw 42 extends forwards, and the front side face of the pressure plate 40 is pressed on the rear end portion of the shell of the electric hand drill 4. After the electric hand drill 4 is firmly fixed, the steel wire lead 28 is taken out and penetrates forwards from the rear end of the hollow worm 12, passes through the space between the upper wire feeding wheel 23 and the lower wire feeding wheel 24 and then extends forwards through the hollow shaft 5. Then, a spanner is used for screwing a compression nut 37, the compression nut 37 reduces the distance between the upper pressure seat 34 and the lower pressure seat 35, the upper supporting plate 30 slightly rotates downwards by taking the first upper rotating shaft 13 as a center, and the lower supporting plate 31 slightly rotates upwards by taking the second upper rotating shaft 15 as a center, so that the upper wire feeding wheel 23 and the lower wire feeding wheel 24 can compress the steel wire lead 28, the friction force enough for conveying the steel wire lead 28 forwards is provided, the upper driving gear 19 can be ensured to be always meshed with the upper driven gear 21, and the lower driving gear is always meshed with the lower driven gear.
Then an operator holds the holding tube 46 with one hand and holds the handle of the electric hand drill 4 with the other hand to extend the front end of the hollow shaft 5 into the inlet of the electric conduit, the electric hand drill 4 is started, the outer hexagonal column 29 drives the inner hexagonal driving sleeve 9 to rotate, the first driving gear 10 on the inner hexagonal driving sleeve 9 drives the first driven gear 11 to rotate, the first driven gear 11 drives the hollow worm 12 to rotate, the upper worm gear 17 and the lower worm gear 18 which are meshed with the front end part of the hollow worm 12 rotate, the upper driving gear 19 which is coaxial with the upper worm gear 17 and the lower driving gear which is coaxial with the lower worm gear 18 also synchronously rotate, the upper driving gear 19 drives the upper driven gear 21 to rotate, the lower driving gear drives the lower driven gear to rotate, the upper wire feeding wheel 23 which is coaxial with the upper driving gear 19 rotates, the lower wire feeding wheel 24 which is coaxial with the lower driving gear rotates, the upper wire feeding wheel 23 and the lower wire feeding, the wire leads 28 move along the hole wall of the electric conduit in the outlet direction. When the front end of the steel wire lead 28 moves to the bending and turning position of the electric wire tube, the steel wire lead 28 only moves forwards and is difficult to pass through the bending and turning section; at this time, the trigger 47 is pressed backward by the finger gripping the grip tube 46, the trigger 47 drives the two driving levers 48 to rotate upward about the supporting shaft 54 as a fulcrum, the pull rod 55 between the rear ends of the two driving levers drives the brake lever 49 to move downward through the driving sleeve, the spring 50 is compressed, and the upper end of the brake lever 49 is separated from the positioning groove 57. Because the front side wall of the mounting shell 7 is rotationally connected to the hollow shaft 5, the rear side wall of the mounting shell 7 is rotationally connected to the hollow worm 12, after the brake disc 8 is released, the hollow worm 12 drives a part of power of the upper worm wheel 17 and the lower worm wheel 18 to drive the mounting shell 7 to rotate, the rotation of the mounting shell 7 drives the steel wire lead 28 to rotate, and due to the arrangement of the rotary damper 6, the rotation speed of the mounting shell 7 and the brake disc 8 is relatively low, so that the hollow worm 12 can continuously transmit a part of power to the upper worm wheel 17 and the lower worm wheel 18, the steel wire lead 28 is continuously moved forwards, the forward moving speed is reduced, and the steel wire lead 28 can be driven to rotate while moving forwards, and thus the front end of the steel wire lead 28 can easily change direction through the bending section of the electric wire tube. By bending the direction-changing segment, the trigger 47 is released, and the brake lever 49 is moved upward by the spring 50 and inserted into the positioning groove 57 again to position the brake disk 8, the mounting case 7 is also stopped from rotating, and the wire lead 28 is moved forward only without rotating. When the curved change section of the electrical conduit is encountered again, the trigger 47 is depressed again. The hand drill 4 is turned off until the wire lead 28 extends out of the outlet of the electrical conduit.
Of course, in the threading work, the electric hand drill 4 is started and the trigger 47 is pressed down to release the brake disk 8, the mounting case 7 is always kept rotating, and the wire lead 28 is also moved forward under the clamping of the upper wire feeding wheel 23 and the lower wire feeding wheel 24.
The hollow shaft 5 of the present invention not only serves to guide the wire lead 28 forward, but also the hollow shaft 5 is used to rotatably connect the mounting case 7 through the fourth bearing 33; the hollow worm 12 not only serves to reduce the rotational speed of the electric hand drill 4 by an increased torque, but also serves to guide the wire lead 28 forward and for rotational connection of the mounting housing 7 via the third bearing 32.
The rotation damper 6 damps the rotation of the brake disk 8 with damping oil.
The multiple groups of jacks 43 arranged at the rear end parts of the left positioning rod 38 and the right positioning rod 39 of the adjustable positioning frame are suitable for electric hand drills 4 with different sizes (lengths), so that the pressing plate 40, the fixing seat 41 and the screw rod 42 move forwards or backwards, and the adjustable positioning frame has wider universality. The electric hand drill 4 is taken down, so that the device is portable, small in size and easy to carry.
The grip tube 46 not only has the function of convenient hand holding, but also provides a mounting and hiding space for the brake lever 49, and the brake lever 49 adopts a structure that the hand-press trigger 47 and the spring 50 are reset, so that the structure is simple and compact, labor-saving and easy to manufacture.
The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.

Claims (8)

1. The building construction line pipe threading and leading method is characterized by comprising the following steps: comprises the following steps of (a) carrying out,
(1) installing an electric hand drill on the handheld rotary threading device, wherein the electric hand drill provides driving power for the handheld rotary threading device;
(2) the steel wire lead passes through the handheld rotary threading device from back to front and is pressed tightly;
(3) the front end of the steel wire lead extends into the inlet of the electric wire tube, the handheld rotary threading device is started, the steel wire lead is driven to thread along the electric wire tube, and the handheld rotary threading device is closed after the front end of the steel wire lead extends out of the outlet of the electric wire tube;
(4) connecting one or more electric wires to be threaded at the rear end of the steel wire lead, pulling the front end of the steel wire lead at the outlet of the electric wire tube, and introducing the electric wires into the electric wire tube through the steel wire lead until the electric wires penetrate out of the outlet of the electric wire tube to complete the threading and lead operation;
the handheld rotary threading device comprises a front mounting plate and a rear mounting plate which are arranged in parallel, the top of the front mounting plate and the top of the rear mounting plate are horizontally and fixedly connected through a top plate, the rear mounting plate is connected with an adjustable positioning frame for mounting and fastening the electric hand drill, the front mounting plate is provided with a front and rear through mounting hole, a hollow shaft with a front end and a rear end both protruding out of the side surface of the front mounting plate is fixedly arranged in the mounting hole, the rear side surface of the front mounting plate is fixedly provided with a rotary damper sleeved on the hollow shaft, a mounting shell is rotatably arranged between the rear end part of the hollow shaft and the rear mounting plate, threading power driving devices in transmission connection with the electric hand drill are arranged in the rear mounting plate and in the mounting shell, the front side of the mounting shell is fixedly connected with a brake;
the threading power driving device comprises an inner hexagonal driving sleeve, a first driving gear, a first driven gear, a hollow worm, a first upper rotating shaft, a first lower rotating shaft, a second upper rotating shaft, a second lower rotating shaft, an upper worm wheel, a lower worm wheel, an upper driving gear, a lower driving gear, an upper driven gear, a lower driven gear, an upper wire feeding wheel and a lower wire feeding wheel, wherein an upper through hole and a lower through hole which are through front and back are arranged in a rear mounting plate, the inner hexagonal driving sleeve is rotatably connected in the upper through hole through two first bearings, the rear end of the hollow worm is rotatably connected in the lower through hole through two second bearings, the central line of the hollow worm is superposed with the central line of the hollow shaft, a vertical groove which is communicated with the upper through hole and the lower through hole is arranged in the rear mounting plate, the first driving gear and the first driven gear are both positioned in the vertical groove, the first driving gear is arranged on the outer circle of the inner, the lower part of the first driving gear is meshed with the upper part of the first driven gear;
the power output end of the electric hand drill is connected with an outer hexagonal column, and the outer hexagonal column extends into the inner hexagonal driving sleeve from back to front and is in transmission connection with the inner hexagonal driving sleeve;
the first upper rotating shaft, the first lower rotating shaft, the second upper rotating shaft and the second lower rotating shaft are arranged along the left-right direction, the second upper rotating shaft and the second lower rotating shaft are positioned at the front sides of the first upper rotating shaft and the first lower rotating shaft, the upper worm wheel and the upper driving gear are both mounted on the first upper rotating shaft, the lower worm wheel and the lower driving gear are both mounted on the first lower rotating shaft, the upper driven gear and the upper wire feeding wheel are both mounted on the second upper rotating shaft, the lower driven gear and the lower wire feeding wheel are both mounted on the second lower rotating shaft, and both ends of the first upper rotating shaft and both ends of the first lower rotating shaft are both rotatably connected to the left side wall and the right side wall of the; the upper driving gear is meshed with the upper driven gear, and the lower driving gear is meshed with the lower driven gear; the two ends of the first upper rotating shaft are rotatably connected with upper supporting plates, the two ends of the first lower rotating shaft are rotatably connected with lower supporting plates, the upper supporting plates and the lower supporting plates are positioned outside the mounting shell, the two ends of the second upper rotating shaft penetrate through the mounting shell and are rotatably connected to the upper supporting plates, the two ends of the second lower rotating shaft penetrate through the mounting shell and are rotatably connected to the lower supporting plates, the upper wire feeding wheel and the lower wire feeding wheel vertically correspond to each other, wire pressing grooves formed between the lower part of the upper wire feeding wheel and the upper part of the lower wire feeding wheel are positioned on a central line of the hollow shaft, and a set of wire pressing tightness adjusting mechanism with the same structure is respectively arranged between the upper supporting plate and the lower supporting plate on the;
the front end of the hollow worm penetrates through the mounting shell and extends into a position between the upper worm wheel and the lower worm wheel, the upper portion and the lower portion of the front end of the hollow worm are respectively meshed with the upper worm wheel and the lower worm wheel, the hollow worm is rotatably connected with the rear side wall of the mounting shell through a third bearing, and the rear portion of the hollow shaft is rotatably connected with the front side wall of the mounting shell through a fourth bearing.
2. The building construction conduit threading and threading method according to claim 1, characterized in that: the line ball elasticity adjustment mechanism includes and presses the seat, presses seat and clamp bolt down on, and on pressing a fixed connection in last backup pad, on pressing a fixed connection backup pad down, on pressing a seat and pressing a seat down and correspond and set up penetrating regulation hole from top to bottom, and clamp bolt wears to establish in the regulation hole, and clamp bolt upper end threaded connection has gland nut.
3. The building construction conduit threading and threading method according to claim 2, characterized in that: the locating rack with adjustable includes left positioning pole, right side locating pole, the clamp plate, fixing base and screw rod, left side locating pole and right side locating pole are along fore-and-aft direction parallel arrangement, left side portion and right side portion at the rear mounting panel of left side locating pole and right side locating pole front end fixed connection respectively, the jack that corresponds about a set of is all seted up at the rear portion of left side locating pole and right side locating pole, the jack is provided with three at least groups along the fore-and-aft direction, the fixing base left and right sides all is provided with a depression bar that stretches into in the jack, the screw rod sets up along the fore-and-aft direction, set up threaded hole along the fore-and-aft direction in the fixing base, the screw rod stretches into and threaded connection is downthehole, the screw.
4. The building construction conduit threading and threading method according to claim 3, characterized in that: the hand-held type rotation limiting mechanism comprises a holding tube, a trigger, driving rods, a brake rod, a spring, an upper guide tube and a lower guide tube, wherein the holding tube is arranged along the vertical direction, the front side of the upper end of the holding tube is fixedly connected with the lower end of a front mounting plate through a groove-shaped plate, a notch is formed in the rear side of the upper part of the holding tube, a support shaft is fixedly arranged at the front side of the holding tube at a position as high as the notch, the two driving rods are respectively arranged on the left side and the right side of the holding tube, the front ends of the two driving rods are respectively and rotatably connected with the two end parts of the support shaft, the trigger is obliquely arranged at a high position and a low position in front and back, the lower end part of the trigger is fixedly connected with the front ends of the two driving rods, a pull rod positioned in the notch is arranged between the rear ends of the driving rods, the upper guide tube and, the upper end and the lower end of the brake rod are slidably arranged in the upper guide pipe and the lower guide pipe in a penetrating mode, a plurality of positioning grooves are uniformly formed in the outer circumference of the brake disc, the spring is sleeved on the brake rod, the upper end and the lower end of the spring are respectively in press fit with the lower end of the connecting sleeve and the top of the upper end of the lower guide pipe, and under the action of the spring, the upper end of the brake rod is pressed in one positioning groove in the bottom of.
5. The building construction conduit threading and threading method according to claim 4, characterized in that: the specific operation process of the step (1) is that before threading, the electric hand drill is positioned and installed on the rear side of the rear installation plate, the power output end of the electric hand drill is firstly installed with an outer hexagonal column, then the outer hexagonal column extends into an inner hexagonal driving sleeve, then two pressure rods are respectively inserted into the insertion holes of the left positioning rod and the right positioning rod, a handle is screwed, a driving screw rod extends forwards, and the front side surface of a pressure plate is tightly pressed on the rear end part of the shell of the electric hand drill.
6. The building construction conduit threading and threading method according to claim 5, characterized in that: the specific operation process of the step (2) is that after the electric hand drill is firmly installed and fixed, the steel wire lead is taken out and penetrates forwards from the rear end of the hollow worm, passes through the space between the upper wire feeding wheel and the lower wire feeding wheel and then extends forwards through the hollow shaft; then use the spanner to twist and move gland nut, gland nut will go up the pressure seat and reduce the distance between the pressure seat down, go up the backup pad and use first pivot of going up to rotate slightly downwards as the center, lower backup pad uses first pivot of going down to rotate slightly upwards as the center, make like this go up wire feeding wheel and wire feeding wheel down and can compress tightly the steel wire lead wire, provide enough frictional force that carries the steel wire lead wire forward, go up the driving gear moreover and last driven gear meshing all the time, lower driving gear is meshing with lower driven gear all the time.
7. The building construction conduit threading and threading method according to claim 6, characterized in that: the specific operation process of the step (3) is,
an operator holds the holding tube with one hand and holds the handle of the electric hand drill with the other hand, the front end of the hollow shaft extends into the inlet of the electric wire tube, the electric hand drill is started, the outer hexagonal column drives the inner hexagonal driving sleeve to rotate, the first driving gear on the inner hexagonal driving sleeve drives the first driven gear to rotate, the first driven gear drives the hollow worm to rotate, an upper worm wheel and a lower worm wheel which are engaged with the front end part of the hollow worm rotate, an upper driving gear which is coaxial with the upper worm wheel and a lower driving gear which is coaxial with the lower worm wheel also synchronously rotate, the upper driving gear drives an upper driven gear to rotate, the lower driving gear drives a lower driven gear to rotate, the upper wire feeding wheel coaxial with the upper driven gear rotates, the lower wire feeding wheel coaxial with the lower driven gear rotates, the upper wire feeding wheel and the lower wire feeding wheel jointly drive the steel wire lead to move forwards, and the steel wire lead moves towards the outlet direction along the hole wall of the electric wire tube; when the front end of the steel wire lead moves to the bending and turning position of the electric wire tube, a finger holding the holding tube presses the trigger backwards, the trigger drives the two driving rods to rotate upwards by taking the supporting shaft as a fulcrum, the pull rod between the rear ends of the two driving rods drives the brake rod to move downwards through the driving sleeve, the spring is compressed, and the upper end of the brake rod is separated from the positioning groove; because the front side wall of the mounting shell is rotationally connected to the hollow shaft, the rear side wall of the mounting shell is rotationally connected to the hollow worm, after the brake disc is liberated, the hollow worm drives one part of power of the upper worm wheel and the lower worm wheel to drive the mounting shell to rotate, the rotation of the mounting shell drives the steel wire lead to rotate, and due to the arrangement of the rotary damper, the other part of power of the hollow worm continuously enables the steel wire lead to move forwards, the speed of the forward movement is reduced, the steel wire lead rotates while moving forwards, and the front end of the steel wire lead passes through the bending diversion section of the electric wire tube; after the turning section is bent, the trigger is loosened, the brake rod moves upwards under the action of the spring and is inserted into the positioning groove again to position the brake disc, the mounting shell stops rotating, and the steel wire lead only moves forwards and does not rotate; when the bending and turning section of the electric line pipe is encountered again, the trigger is pressed down again; and closing the electric hand drill until the steel wire lead extends out of the outlet of the electric wire tube.
8. The building construction conduit threading and threading method according to claim 1, characterized in that: the structure of the front mounting plate, the rear mounting plate and the top plate are made into a whole in the left side, the structure of the front mounting plate, the rear mounting plate and the top plate is made into a whole in the right side, and the structure of the front mounting plate, the rear mounting plate and the top plate is connected with the structure of the front mounting plate, the rear mounting plate and the top plate in the right side through connecting bolts.
CN201811048480.3A 2018-09-10 2018-09-10 Building construction line pipe threading and lead-in method Active CN109193475B (en)

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Publication number Priority date Publication date Assignee Title
CN110535068B (en) * 2019-09-04 2020-08-28 福建六建集团有限公司 Wall circuit threading device for building engineering
CN111193224B (en) * 2020-03-13 2020-11-06 山东合力金桥系统集成技术有限公司 Installation equipment of information interaction data line

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US5149056A (en) * 1991-06-27 1992-09-22 Jones Brian E Wire puller for electrical conduits
CA2325790C (en) * 1999-11-16 2008-10-07 Brian N. Ray Wire puller
CN106329406B (en) * 2015-06-23 2018-02-16 李国起 Rotatable pipeline threader
CN204802742U (en) * 2015-07-19 2015-11-25 王国富 Electronic pair of worm wheel group of hand -held type is to tractor of threading in spool
CN107425481A (en) * 2017-06-16 2017-12-01 山东锦华建设集团有限公司 A kind of threader and the threader and its threading method using the threader
CN207320717U (en) * 2017-10-27 2018-05-04 耿全水 A kind of Penetrating wire for pipe equipment

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