CN2274382Y

CN2274382Y - Folding Pipe Pulling Machine

Info

Publication number: CN2274382Y
Application number: CN 96229310
Authority: CN
Inventors: 徐瑞旗
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-02-14
Filing date: 1996-02-14
Publication date: 1998-02-11
Anticipated expiration: 2006-02-14

Abstract

The utility model relates to a foldable pipeline wire stretcher for tractive electric wire, cable. The main characteristic is that a wire drawing rotary shaft connected with a speed reducing motor and rotating is fixedly arranged on a rectangular base of a wire drawing machine main body with a pair of moving rotating wheels and a pair of positioning feet, three sections of sleeved overlapped mechanical arms which are slightly H-shaped, have the same length and gradually decrease in width in sequence are arranged on the main body, wherein, a group of push-rod-free positioning devices which can adjust the direction and angle by 180 degrees and automatically position are respectively used between the first section of mechanical arm and the second section of mechanical arm and between the second section of mechanical arm and the third section of mechanical arm to connect, and a wire guide head positioning device is arranged at the top end of the third section of mechanical arm. The utility model discloses the integer is quick-witted good, convenient operation, and is efficient to still have small, be convenient for transport, deposit advantages such as.

Description

Collapsible pipeline drawing machine

The utility model relates to traction, is a kind of collapsible pipeline drawing machine in order to tractive electric wire, cable.

In the modern construction engineering, along with the construction of a large amount of high levels, grand building, its various pipelines and the electric wire, the cable that are arranged in the pipeline become increasingly complex, and weight is big, and it is increasing to join the wire pulling work amount.By the construction main points of generally in pipeline, joining pull the wire, cable be: after prior to one of pipeline port a soft cable wire or rope lead-in wire being placed and pass, live electric wire, cable in other port of pipeline with this cable wire or the binding of rope lead-in wire, again cable wire or rope lead-in wire are pulled through pipeline together with electric wire, cable.For overcoming the drawback of the sort of heavy, the painstaking and poor efficiency of artificial backguy etc., progressively replace artificial backguy in the building industry with mechanical backguy.But existing backguy machinery is function singleness but also quite heavy not only, and backguy efficient is low.As an a kind of CD-ROM drive motor, a power transmission shaft and guy-line equipment of the moving winding roll of tape splicing always of being provided with in a rectangular box inside.This guy-line equipment has following disappearance through regular meeting on practice: the one, because this guy-line equipment is bulky, heavy, very take up room, the carrying can done more than two people especially must be arranged, move; The 2nd,, owing to lack good, practical lead and fixture in its structure, and must arbitrarily select the support push rod of a suitable length for use with gathering materials on the spot, maybe must be fixed in ground and on ceiling the appropriate position one pulley gear is set, adjusted fixing after, could cooperate machine to carry out backguy, cause the time of not only expending many searching push rods in rain, setting up push rod, stationary machines and pulley, more cause uneconomical phenomenons such as its construction significant effective rate is not high, quality is low and cost remains high.

The purpose of this utility model is to provide a kind of and exempts to fix, can motor-driven adjustment direction or angle, with easy and simple to handle, be easy to carry, deposit the collapsible pipeline drawing machine that takes up space less, specialize in various pipelines and join engineerings usefulness such as pull the wire, cable, improve efficiency of construction, quality with this, reduce cost of labor, reach save time, the purpose of laborsaving, high-effect, low fault.

The utility model of realizing above-mentioned purpose consists predominantly of a drawing machine main body, a gear motor, a backguy rotating shaft, three memorandums and is a fit eclipsed form mechanical arm and the wire head positioner that H type and equal in length, width successively decrease in regular turn.Wherein: the drawing machine main body is a rectangular base, fixed position two sides up protrude out respectively and are installed with the spacer that can supply first segment mechanical arm one end to peg graft and fix above this rectangular base, in base one end two side positions place respectively by two runner fixed axis be provided with can make things convenient for, laborsaving mobile mobile runner, can be and be respectively equipped with for fixedly the drawing machine main body is in ground angle in the two bottom sides position of the other end, the top then is provided with the defensive position carrying handle that can be beneficial to upper and lower floor carrying.Gear motor is installed on the upper limb face of drawing machine main body, the backguy rotating shaft is by connecting mutually with the center power transmission shaft of gear motor by a fixing pin, be nested with a location bearing on the position between gear motor and the backguy rotating shaft, gear motor and backguy rotating shaft are linearly rotated synchronously.This backguy rotating shaft in the utility model is a kind of not rolling-type setting of line of crossing, and only needs cable wire or rope to make and can carry out backguy after twining a few tensions in this rotating shaft, is not subjected to the length restriction of cable wire or rope fully.Three joint H jackets close the eclipsed form mechanical arm, it is fixedly arranged on the spacer position of drawing machine main body top by vertical down the pegging graft of one of first segment mechanical arm end earlier, again respectively by can do 180 degree adjust directions, angle and automatically two groups of first groups of exempting from the push-down positioner of location exempt from the push-down positioner and be connected and be arranged between first and second joint mechanical arm, and exempt from the push-down positioner by second group and be connected and be arranged between second and third joint mechanical arm, two ends are inserted chimeric fixing mutually; The wire head positioner is pegged graft and is entrenched in the top of the 3rd joint mechanical arm.So promptly form one and can make the overlapping and rapid deployment of fit, adjustment direction, angle and the collapsible drawing machine in location automatically freely.

Above-mentioned two groups of primary structures of exempting from the push-down positioner are respectively:

Exempt from the push-down positioner for first group, consist predominantly of a passing spool and a rotating shaft, two fixedly gear piece, turn to wire-crossing wheel and a rotating shaft, two " C " type locating ring, two stators, two-screw spacer, a wire-crossing wheel and a rotating shaft, an alignment pin and a carrying handle and a handgrip fixed axis on the other hand.Said two fixing gear piece extending parts that general plan is " U " font and has the screw structure on it, this two fixedly gear piece peg graft by this position and be embedded on the second joint mechanical arm, and lock with screw; This two fixedly the center of gear piece inboard be provided with a passing spool that is nested with in rotating shaft.Rotatable because of the rotating shaft in this passing spool, then it impels first and second joint mechanical arm to be able to rapid deployment, cooperates the practice of construction site environment, makes 180 degree and adjusts its stayguy direction, angle arbitrarily.This two fixedly the inboard of gear piece extending part wear by rotating shaft and two " C " type locating ring and turn to wire-crossing wheel.General plan is " U " font and has the extending part of screw structure under the said stator, and this two stator is intercalated in the first segment mechanical arm by this position, and locks with screw; Same position protrudes out one and protrudes out end on this stator and the screw spacer, and said portable handle is set in and is arranged at this two stator and protrudes out on the inboard handgrip fixed axis of end; Square same position place has perforation under this stator and the screw spacer, and said wire-crossing wheel is set in the rotating shaft that is arranged in this two stators perforation.Be formed with respectively on its near-end edge appropriate location, two ends of said alignment pin and can construct and break away from groove with the teeth of fixedly gear piece engagement, this alignment pin is arranged on the side of wire-crossing wheel by the spring cup that restoring spring is housed in the location baffle plate and.

Exempt from the push-down positioner for second group, consist predominantly of a passing spool and a rotating shaft, two fixedly gear piece, two stators, two-screw spacer and an alignment pin.Said two fixedly gear piece and two stators, the former is up, the latter is " U " font and has the extending part of screw structure in general plan down, and pegging graft by this extending part respectively is embedded on the 3rd joint mechanical arm and the second joint mechanical arm, and locks with screw; Two fixing being centered close on the same axis of gear piece and two stators, and two stators are positioned at correspondingly two fixedly by the outside of gear piece; At two fixing sheathed passing spools in the rotating shaft at the central axis place between the gear piece inboard.Because of two fixedly gear piece and two stators be set in the same rotating shaft, by the turnability of this rotating shaft, impel second and third joint mechanical arm similarly also to be cooperated the actual field environment, rapid deployment is made 180 degree its stayguy direction of adjustment, angle arbitrarily.Be formed with respectively on its near-end edge appropriate location, two ends of said alignment pin can with two fixedly gear piece engagement the teeth structure and break away from groove, this alignment pin is set in the nearly below of stator and screw spacer by the spring cup that restoring spring is housed in the location baffle plate and.This alignment pin can be made automatic homing under the effect of restoring spring, the disengaging groove on it can impel that the teeth structure on it is suitable to be broken away from and the fixing engagement of gear piece, is beneficial to do bending or adjusts.

Wire head positioner in the utility model consists predominantly of a support that slightly is " H " type, two stators, two-screw spacer, an alignment pin, guiding wire-crossing wheel and a rotating shaft, two " C " type locating ring, a passing spool and a rotating shaft.The extending part that its following general plan of said two stators is " U " font and has the screw structure, this two stator are pegged graft by this extending part and are embedded on the 3rd joint mechanical arm, and lock with screw.Be formed with the teeth structure on the said support one end periphery, and this end is bound up on inboard, two stators upper end by a rotating shaft, passing spool then is nested with the inboard that is positioned at the support bipod in rotating shaft; The other end inboard of support is provided with a guiding wire-crossing wheel by rotating shaft and two " C " the type locating ring that two ends are equipped with bearing respectively.Because of the support that guiding wire-crossing wheel and passing spool are housed is bound up on two stators by rotating shaft, then by this rotating shaft turnability, impel this wire positioning device to be able to adjust its directions, angle as making 180 degree as second joint and the 3rd joint mechanical arm.Be formed with respectively on its near-end appropriate location, two ends of said alignment pin and can construct and the disengaging groove with the teeth of teeth engagement on the support, this alignment pin is on the fixed position of a straight line by the nearly below that the spring cup that restoring spring is housed in the location baffle plate and is set in stator and screw spacer.With the same as mentioned above, the be meshing with each other state of this alignment pin between automatically involution under the effect of restoring spring, maintenance are constructed with the teeth on the wire head locator bracket reaches the purpose of automatic location.

The utility model also can be between the second joint mechanical arm and the 3rd joint mechanical arm, exempts from the push-down positioner by second group and is connected and sets up one and save second and save mechanical arm.

Therefore, the utility model is on the one hand because its drawing machine main body and multi-section type backguy mechanical arm are formed an overall structure, feasiblely can simplify construction procedure, save many loaded down with trivial details, work of repeating, avoid being scattered, losing and influence engineering because of spare part, and can improve operational environment clean and tidy, save many clearance times and trouble etc., the utility model also has following advantage simultaneously: the one, its complete machine can adopt upright setting, can reach to be easy to deposit, to carry and take up space less; The 2nd, but the collocation of its portable handle of mat, defensive position carrying handle, angle and mobile runner application reaches laborsaving, mobile, carrying apace, and its mobility and practicality are promoted in firm, location; The 3rd, but its backguy rotating shaft of mat can not limited by cable wire or rope lengths fully, then applicable to the pipeline backguy engineering of various long distances, promotes its scope of application; The 4th, but mat its exempt from the push-down positioner, can obtain under the environment of any job site to do arbitrarily 180 degree and adjust directions, angle and location automatically, realize rapid deployment, adjustment, high efficiency operation such as can not become flexible or fall behind the location automatically.

Description of drawings:

Fig. 1 is a schematic perspective view of the present utility model.

Fig. 2 is the schematic perspective view that launches three joint mechanical arms in the utility model structure.

Fig. 3 is the decomposing schematic representation of drawing machine main body and first segment mechanical arm in the utility model structure.

Fig. 4 is the schematic perspective view that first segment mechanical arm and second saves the mechanical arm combination in the utility model structure.

Fig. 5 is the perspective view that first segment mechanical arm and second saves the mechanical arm combination in the utility model structure.

Fig. 6 is the decomposing schematic representation that first segment mechanical arm and second saves the mechanical arm combination in the utility model structure.

Fig. 7 is the schematic perspective view that the second joint mechanical arm and the 3rd saves the mechanical arm combination in the utility model structure.

Fig. 8 is the decomposing schematic representation that the second joint mechanical arm and the 3rd saves the mechanical arm combination in the utility model structure.

Fig. 9 is the schematic perspective view that the 3rd joint mechanical arm and wire head positioner makes up in the utility model structure.

Figure 10 is the schematic diagram of the decomposition of the 3rd joint mechanical arm and wire head positioner in the utility model structure.

Figure 11 is that the utility model is in order to draw the embodiment schematic diagram of " the underground hidden pipe of opening " up.

Figure 12 is that the utility model is in order to draw the embodiment schematic diagram of " exposed conduit on the ceiling of horizontal opening ".

Figure 13 is that the utility model is in order to draw the embodiment schematic diagram of " hidden pipe in the opening wall down ".

Figure 14 is that the utility model is in order to draw the embodiment schematic diagram of " hidden pipe in the opening wall up ".

Figure 15 is connected and sets up the embodiment schematic diagram that forms four joint formula mechanical arms behind a joint second joint mechanical arm for exempting from the push-down positioner by second group in the utility model.

Embodiment of the present utility model as shown in drawings.Further the utility model is described specifically below in conjunction with accompanying drawing.

At first, see also Fig. 1, Fig. 2 and overall structure of the present utility model shown in Figure 3.See that by figure the utility model consists predominantly of a drawing machine main body 1, a gear motor 3, a backguy rotating shaft 4, three memorandums and is the fit eclipsed form

mechanical arm

5,6,7 that H type and equal in length, width successively decrease in regular turn, and a wire head positioner 10.Drawing machine main body 1 is a rectangular base, two sides up protrude out respectively and are installed with spacer 1a above this rectangular base one end, and place respectively by two runner fixed axis 1b at these end two side positions and to be provided with mobile runner 1c, and being respectively equipped with angle 1d in the two bottom sides position of the other end, the top then is provided with defensive position carrying handle 1e; Gear motor 3 is installed on the upper limb face of drawing machine main body 1, and backguy rotating shaft 4 connects with the center power transmission shaft 3a of gear motor 3 mutually by a fixing pin 2a, is nested with a location bearing 2 on the position between gear motor 3 and the backguy rotating shaft 4.Three joint H jackets close eclipsed form

mechanical arm

5,6,7, it is fixedly arranged on the spacer 1a position of drawing machine main body 1 top by vertical down the pegging graft of one of first segment mechanical arm 5 end earlier, exempt from push-down positioner 8 and second group by first group again and exempt from push-down positioner 9, first and second joint

mechanical arm

5,6 and second and third joint

mechanical arm

6,7 are connect mutually.Wire head positioner 10 is pegged graft and is entrenched in the top of the 3rd joint mechanical arm 7.So collapsible pipeline drawing machine can be portable 8r for single gripping, move the runner 1c tractive that lands with two and move, or two people cooperates defensive position carrying handle 1e to lift carrying; When using, with angle 1d land the location after, only need to launch, adjust direction, the angle of second and third joint

mechanical arm

6,7, can exempt from push-down

positioner

8,9 by two groups respectively and do location automatically, and adjust impel the locational flange configuration 10p of wire head positioner 10 front end-plates to go deep in the distribution casing after, prop up the pipeline line outlet with being horizontal or vertical shape, and carry out the backguy operation by gear motor 3 drive backguy axles 4.

Connection diagram by Fig. 4, Fig. 5 and the first segment shown in Figure 6 and the second joint mechanical arm sees that its coupling arrangement is first group and exempts from push-down positioner 8.See by figure, system is prior to placing the rotating shaft 8b that is formed with the external screw thread structure on its near-end edge position, two ends respectively in the passing spool 8a internal diameter, and this rotating shaft 8b two ends are arranged with bearing 8c, pad 8d, fixedly gear piece 8e, Improved mat 8f and stator 8g respectively in regular turn with symmetric mode certainly, and after screwing togather locking with parbuckle screw 8h, utilize again to prevent that the screw spacer 8i that this parbuckle screw 8h slides is nested with fixing from two ends.And fixedly be on a straight line two fixed positions nearly below of gear piece 8g and screw spacer 8i in this, screw togather from two ends by the rotating shaft 8k and the two parbuckle screw 8m that are equipped with bearing 8l on the thread structure outside its near-end edge position, two ends respectively again, has the wire-crossing wheel 8j that reduces backguy angle function and be equipped with one, and by the spring cup 8q of restoring spring 8p being housed in the baffle plate 8o and one and being nested with to be installed with and being formed with teeth structure and the dowel 8n that breaks away from groove on its near-end edge appropriate location, two ends respectively in a location, and the teeth structure that impels this dowel 8n two ends is able to the elastic reaction of mat restoring spring 8p and involution automatically, keep and the fixing state that is meshing with each other between gear piece 8e, reach the purpose of automatic location.Again, protruding out end on stator 8g and screw spacer 8i is on the fixed position of a straight line, screw togather from two ends by the handgrip fixed axis 8s and the two parbuckle screw 8t that are formed with the external screw thread structure on its near-end edge position, two ends respectively respectively, be provided with carrying handle 8r device on the other hand and place, but this is portable just to move the 8r supplier or cooperates defensive position carrying handle 8f on the drawing machine main body 1, is beneficial to do upper and lower floor carrying.Be " U " font by general plan under this stator 8g respectively again and have the extending part of screw structure, pegging graft is embedded in the first segment mechanical arm 5, and locks with screw; And by this two fixing gear piece 8e extending part that general plan is " U " font and has the screw structure on it, grafting is embedded on the second joint mechanical arm 6 and with screw and locks simultaneously, by a rotating shaft 8v and two " C " type locating ring 8w and be equipped with one and turn to wire-crossing wheel 8u, can be and form one by the turnability of the inner rotating shaft 8b of this passing spool 8a, impel first and second joint

mechanical arm

5,6 to be able to rapid deployment, cooperate the practice of construction site environment, make 180 degree and adjust its stayguy direction, angle arbitrarily.Reach the automatic homing that has by this alignment pin 8n, impel before adjusting its stayguy direction, angle, can earlier dowel 8n be urged to other end from having one of restoring spring 8p end, impel its teeth structure to be broken away from and the fixing engagement of gear piece 8e by breaking away from groove, be beneficial to do bending, adjust, and when adjust determining or after the completion folding, but its elastic reaction of mat and the anchor point place is fixed in involution automatically and quickly then.

See that with the connection diagram of the 3rd joint mechanical arm its coupling arrangement is second group and exempts from push-down positioner 9 by Fig. 7 and second joint shown in Figure 8.See by figure, system is prior to placing the rotating shaft 9b that is formed with the external screw thread structure on its near-end edge position, two ends respectively in the passing spool 9a internal diameter, and this rotating shaft 9b two ends are equipped with respectively in regular turn with symmetric mode certainly: bearing 9c, pad 9d, fixedly gear piece 9e, Improved mat 9f and stator 9g, and after screwing togather locking with parbuckle screw 9h, fix it by preventing that screw spacer 9i that this parbuckle screw 9h slides is nested with from two ends again; And be on the fixed position of a straight line in this stator 9g and the nearly below of screw spacer 9i, place and be formed with teeth structure and the dowel 9j that breaks away from groove on its near-end edge appropriate location, two ends respectively, and the ora terminalis position, two ends of this dowel 9j is nested with fixing by the spring cup 9l that restoring spring 9m is housed in the location baffle plate 9k and respectively certainly, impel the teeth structure at dowel 9j two ends to be able to the elastic reaction of mat restoring spring 9m and involution automatically, maintenance and the fixing state that is meshing with each other between gear piece 9e, reach the purpose of automatic location.Again respectively by these two fixedly gear piece 9e and two stator 9g, the former up, the latter is " U " font and has the extending part that screw is constructed in following general plan, peg graft by this extending part respectively and be embedded on the 3rd joint mechanical arm 7 and the second joint mechanical arm 6, and lock with screw, forming one can be by the turnability of this rotating shaft 9b, impel second and third joint

mechanical arm

6,7 are similarly also cooperated the practice of construction site environment, rapid deployment is made 180 degree and is adjusted its stayguy direction arbitrarily, angle, reach automatic homing by this dowel 9j, before impelling expansion to adjust, can earlier dowel 9j be urged to other end from having one of restoring spring 9m end, impel its teeth structure to be broken away from and the fixing engagement of gear piece 9e by breaking away from groove, be beneficial to bend, adjust, and when adjust determining or after the completion folding, but its elastic reaction of mat and automatically then, involution is fixed on the anchor point place apace.

See by Fig. 9 and the wire head positioner that is arranged on the 3rd joint mechanical arm top shown in Figure 10, cording has a support 10 that slightly is " H " type, the one end is formed with the teeth structure, the other end then is nested with rotating shaft 10b and two " C " the type locating ring 10d that is provided with bearing 10c respectively by its two ends, wears a guiding wire-crossing wheel 10a on this rotating shaft 10b.And have between one of teeth structure end both sides on the position in this support 10, place earlier and be installed with a passing spool 10e by the rotating shaft 10f that is formed with the external screw thread structure on its near-end edge position, two ends, ground respectively and two bearings 10g, again in the two ends of its this rotating shaft of outside 10f, overlapped respectively in regular turn with symmetric mode and to be inserted Improved mat 10h and stator 10i, and after screwing togather locking with parbuckle screw 10j, be nested with fixing from two ends by having the screw spacer 10k that prevents parbuckle screw 10j slip effect again; And be on the straight line locating point position in the nearly below of this stator 10i and screw spacer 10k, by the spring cup 10o of restoring spring 10n being housed in the baffle plate 10m and one and being nested with to be installed with and being formed with teeth structure and the dowel 10l that breaks away from groove on its near-end edge appropriate location, two ends respectively in a location, and the teeth structure that impels this dowel 10l two ends is able to the elastic reaction of mat restoring spring 10n and involution automatically, the maintenance state that is meshing with each other between constructing with the teeth on the support 10, reaches the purpose of automatic location.See by figure, general plan dawn " U " font and extending part with screw structure are pegged graft and are embedded on the 3rd joint mechanical arm 7 and with after the screw locking under two stator 10i, can be respectively by the turnability of the inner rotating shaft 10f of passing spool 10e, impel the wire head positioner to be able to as second and third joint mechanical arm 6, make 180 degree as 7 and adjust its direction, angle, and has automatic homing character by dowel 10l, before impelling expansion to adjust, can earlier dowel 10l be urged to the other end from having one of restoring spring 10n end, impel its teeth to construct the engagement that is broken away from support 10 1 end tooth tooth structures by breaking away from groove, be beneficial to bend, adjust, after impelling the locational flange configuration 10p of support 10 front end-plates directly to be goed deep in the distribution casing, prop up the pipeline line outlet with being horizontal or vertical shape, avoid cable wire or rope lead-in wire and institute's pull the wire, produce between cable and pipeline or distribution casing and touch, the friction and injure pipeline or or the distribution casing, and when adjust determining or after the completion folding, but its elastic reaction of mat and automatically then, the anchor point place is fixed in involution apace.

Figure 11, Figure 12, Figure 13 and Figure 14 shows that the embodiment state diagram that several the utility model use in distribution backguy engineering.Figure 11 is the line in the underground hidden pipe that draws " opening up " with the utility model.Figure 12 is the line in the exposed conduit on the ceiling that draws " horizontal opening " with the utility model.Figure 13 is the line in the hidden pipe in the wall that draws " opening down " with the utility model.Figure 14 is the line in the hidden pipe in the wall that draws " opening up " with the utility model.This shows that the utility model can be adjusted the bending towards of mechanical arm, angle easily, can finish various backguys, particularly various highly difficult wire pulling works quick, smooth and easy, efficiently.

Figure 15 is a kind of pipeline drawing machine with four joint mechanical arms.See that by figure present embodiment is between the second joint mechanical arm 6 and the 3rd joint mechanical arm 7, exempt from push-down positioner 9 by second group and is connected again and sets up one and save second and save mechanical arm 6 and assemble.

Claims

1. A foldable pipeline drawing machine, which is characterized in that it mainly includes a drawing machine main body (1), a deceleration motor (3), a drawing rotating shaft (4), and three sections that are slightly H-shaped and have equal lengths and sequential widths. Decreasing overlapping overlapping mechanical arms (5), (6), (7) and a wire head positioning device, wherein:

[1-1], the main body (1) of the wire drawing machine is a rectangular base, and the two sides of the fixed position above the rectangular base are respectively protruding upwards and fixedly provided with positioning for one end of the first section of the mechanical arm (5) to be plugged and fixed. The piece (1a) is provided with moving runners (1c) on both sides of one end of the base through two runner fixing shafts (1b), and positioning feet (1d) are respectively provided on both sides of the bottom of the other end ) with a rear handle (1e) on top;

[1-2], the deceleration motor (3) is fixed on the upper edge surface of the main body (1) of the wire drawing machine, and the wire pulling shaft (4) passes through a fixed pin (2a) and the central transmission shaft (3a) of the deceleration motor (3) ) are connected together, and a positioning bearing (2) is sleeved on the position between the geared motor (3) and the pull wire rotating shaft (4);

[1-3], the three-section H-shaped overlapped mechanical arm (5), (6), (7), which is fixed on the pull wire by vertically inserting one end of the first section of the mechanical arm (5) downward On the position of the positioning piece (1a) above the main body (1), the first set of the push-rod-free positioning device (8) in the two sets of push-rod-free positioning devices (8) and (9) are connected and set respectively. Between the first and second mechanical arms (5), (6), and connected to the second and third mechanical arms (6), ( 7) Between,;

[1-3-1] The first set of push-rod-free positioning device (8) mainly includes a wire passing shaft (8a) and a rotating shaft (8b), two fixed gear pieces (8e), and a steering wire passing wheel (8u) and a rotating shaft (8v), two "C" type positioning rings (8w), two fixed pieces (8g), two screw positioning pieces (8i), a wire passing wheel (8j) and a rotating shaft (8k), A positioning pin (8n), a handle (8r) and a handle fixed shaft (8s);

Said two fixed tooth pieces (8e) are slightly "U"-shaped and have an extension part of a screw hole structure above them, and the two fixed tooth pieces (8e) are plugged and fitted to the second section of the mechanical arm (6 ) and locked with screws; at the center of the inner side of the two fixed teeth (8e) there is a thread passing shaft (8a) set on the rotating shaft (8b); here the extension of the two fixed teeth (8e) The inner side passes through the steering wheel (8u) through the rotating shaft (8v) and two "C" type positioning rings (8w);

The lower part of the fixed piece (8g) is slightly "U" shaped and has an extension part of a screw hole structure. The two fixed pieces (8g) are embedded in the first section of the mechanical arm (5) through this position, and screwed Locking; a protruding end protrudes from the same position above the fixed piece (8g) and the screw positioning piece (8i), and the handle (8r) is placed inside the protruding end of the two fixed pieces (8g) On the fixed shaft (8s) of the handle; the fixed piece (8g) and the screw positioning piece (8i) have perforations at the same position below, and the thread passing wheel (8j) is placed on the two fixed pieces ( 8g) on the rotating shaft (8k) in the perforation; the positioning pin (8n) is respectively formed with a tooth structure and a disengagement groove that can be engaged with the fixed tooth piece (8e) at the appropriate positions on the near end edges of the two ends of the positioning pin (8n). The pin (8n) is arranged on the side of the thread passing wheel (8j) through a positioning baffle (80) and a spring cover (8q) with a return spring (8p) inside;

[1-3-2] The second set of push rod-free positioning device (9) mainly includes a wire passing shaft (9a) and a rotating shaft (9b), two fixed tooth pieces (9e), two fixed pieces (9g ), two screw positioning pieces (9i) and a positioning pin (9j);

Said two fixed tooth pieces (9e) and two fixed pieces (9g), the former is at the top, and the latter is slightly "U" shaped at the bottom and has an extension part with a screw hole structure. On the third section mechanical arm (7) and the second section mechanical arm (6), and lock them with screws; the centers of the two fixed gear pieces (9e) and the two fixed pieces (9g) are on the same axis, and the two pieces The fixed piece (9g) is positioned at the outer side of two corresponding fixed tooth pieces (9e); On the rotating shaft (9b) at the central axis between the two fixed tooth pieces (9e) inboards, a spool (9a) is sleeved ; said locating pin (9j) is respectively formed with a tooth structure and a disengagement groove that can engage with two fixed teeth (9e) at the appropriate positions on its two ends near the edge, and the locating pin (9j) is fixed by a locating stopper. The plate (9k) and a spring cover (9l) with a return spring (9m) inside are placed under the fixed piece (9g) and the screw positioning piece (9i);

[1-4] The wire head positioning device is plugged and fitted on the top of the third section of the mechanical arm (7), and mainly includes a slightly "H"-shaped bracket (10), two fixing pieces (10i), two Screw positioning piece (10k), a positioning pin (10l), a guide thread passing wheel (10a) and a rotating shaft (10b), two "C" type positioning rings (10d), a thread passing shaft (10e) and a rotating shaft ( 10f);

The lower part of the two fixed pieces (10i) is slightly U-shaped and has an extension part with a screw hole structure. The two fixed pieces (10i) are plugged and fitted to the third section of the mechanical arm (7) through the extended parts. The top of the bracket (10) is locked with screws; a tooth structure is formed on the periphery of one end of the bracket (10), and this end is connected to the inner side of the upper ends of the two fixed pieces (10i) through a rotating shaft (10f), passing through the spool (10e) Then it is sleeved on the rotating shaft (10f) and positioned at the inner side of the two legs of the support (10); the inner side of the other end of the support (10) is respectively sleeved with the rotating shaft (10b) of the bearing (10c) and two "C" Type locating ring (10d) is provided with a guiding wire wheel (10a); Said locating pin (10l) is respectively formed with the tooth structure that can mesh with the upper tooth of support (10) and disengagement Groove, the positioning pin (10l) is inserted between the fixing piece (10i) and the screw positioning piece (10k) through a positioning baffle (10m) and a spring cover (10o) with a return spring (10n) inside Near the fixed point position in a straight line below.

2. The foldable pipeline drawing machine according to claim 1, characterized in that it can be positioned between the second section of the robot arm (6) and the third section of the robot arm (7) by the second group of push rod-free positioning Device (9) is connected again and sets up a joint second mechanical arm (6).