Threading traction device for building electrical construction

Abstract

The invention discloses a threading traction device for building electrical construction, the threading traction device comprises an outer cylinder, a mounting cylinder and an inner cylinder, the mounting cylinder is fixedly arranged in the outer cylinder, and the invention relates to the technical field of building electrical construction. According to the threading traction device for building electrical construction, an intermittent traction mechanism, a flexible supporting mechanism, a sweeping mechanism, a clamping mechanism and a walking mechanism are arranged among the outer cylinder, the inner cylinder and the mounting cylinder, so that the device is fixed after a cable is bound and the interior of a pipeline is centered and positioned; through cooperation of the intermittent traction mechanism, the flexible supporting mechanism, the sweeping mechanism, the clamping mechanism and the walking mechanism, a cable can be automatically and intermittently dragged and dragged in a pipeline, and the jacking state between the device and the inner wall of the pipeline can be synchronously and automatically adjusted during intermittent traction, so that on the basis that dragging stability of the device is guaranteed, the cable can be conveniently and rapidly dragged. The cable is flexibly dragged, and the inner wall of the pipeline is automatically cleaned while the cable is dragged and dragged to advance.

Description

Technical Field

[0001] The invention relates to the technical field of building electrical construction, in particular to a wire threading and traction device for building electrical construction. Background Art

[0002] Building electrical construction refers to the installation and wiring of electrical systems inside buildings, mainly including electrical design, line laying, installation of power distribution equipment, lighting installation and system debugging. When laying lines, it is usually necessary to pre-bury the wire pipes first, and then use the threading traction device to carry out the threading operation later.

[0003] In the prior art, wire threading is usually performed by inserting ropes in advance when burying pipes, and the cables are bundled by the exposed ends of the ropes during threading. The wire threading is subsequently performed by manpower or mechanical pulling. Although the wire threading can be performed, this method is relatively cumbersome. Therefore, a wire threading traction device for building electrical construction is proposed to solve the existing problem. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a wire threading and traction device for building electrical construction, which solves the problem that the traditional method of threading cables and conduits with the help of ropes as a medium is complicated.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a wire threading and traction device for building electrical construction, comprising an outer cylinder, a mounting cylinder and an inner cylinder, the mounting cylinder is fixedly arranged inside the outer cylinder, the inner cylinder is slidably arranged inside the outer cylinder, and one end of the inner cylinder extends to the inside of the mounting cylinder, a plurality of L-shaped support plates are equidistantly and fixedly connected to the surface of the inner cylinder, the internal threads of the L-shaped support plates are connected to stud ball rods, an intermittent traction mechanism is arranged on the surface of the outer cylinder, a flexible support mechanism is arranged on the rear side of the stud ball rod, a cleaning mechanism is arranged on the front side of the outer cylinder, a clamping mechanism is arranged on the surface of the inner cylinder, and walking mechanisms are arranged on both sides of the outer cylinder.

[0006] Preferably, the intermittent traction mechanism includes a first electric telescopic rod, two of which are provided, and the two first electric telescopic rods are respectively fixedly arranged at the top and bottom of the inner cavity of the outer cylinder through brackets, the end of the extended end of the first electric telescopic rod is fixedly connected with an arc-shaped composite top plate, and the arc-shaped composite top plate extends to the outside of the outer cylinder, and the surface of the extended end of the first electric telescopic rod located at the top is fixedly connected with a U-shaped rod through a bracket, both ends of the bottom of the U-shaped rod are fixedly connected with an annular plate, and the surface of the annular plate is rotatably connected with a rounded outer ring, the bottom of the inner cavity of the outer cylinder is fixedly connected with a driving motor, the output shaft of the driving motor is fixedly connected with a first rotating rod through a coupling, the bottom of the inner cavity of the outer cylinder is rotatably connected with a second rotating rod through a bearing, and the second rotating rod The top of the first rotating rod is fixedly connected to the first gear, and the two first gears are meshed with each other, and the third rotating rod is rotatably connected to the third gear on both sides of the bottom of the inner cavity of the outer cylinder through bearings, and the surface of the third rotating rod is fixedly connected to the second gear meshing with the first gear, and the top of the third rotating rod is fixedly connected to a circular seat, and a plurality of handle limiting tooth blocks are equidistantly arranged on the surface of the circular seat, and the top of the handle limiting tooth block is fixedly connected to an arc-shaped outward expansion rod used in conjunction with the rounded outer ring, and the first tooth plate meshing with the handle limiting tooth block is fixedly connected to both sides of the inner cylinder, and a plurality of storage grooves slidably adapted to the handle limiting tooth block are equidistantly arranged inside the circular seat, and a first return spring is fixedly connected between the storage groove and the handle limiting tooth block.

[0007] Preferably, the flexible supporting mechanism includes a second electric telescopic rod, which is fixedly arranged on the surface of the stud ball rod, and the end of the extended end of the second electric telescopic rod is fixedly connected with a tightening plate, and the top of the arc-shaped composite top plate located at the top is fixedly connected with a retraction control button used in combination with the second electric telescopic rod through an installation groove, and the top of the outer tube is fixedly connected with an extension control button used in combination with the second electric telescopic rod through an installation groove, and the bottom of the transverse bending part of the arc-shaped composite top plate located at the top is fixedly connected with a pressure block used in combination with the extension control button.

[0008] Preferably, the cleaning mechanism includes a movable plate, which is slidably arranged inside the mounting cylinder, the front side of the movable plate is rotatably connected to a rotating shaft via a bearing, and one end of the rotating shaft extends to the front side of the outer cylinder, the front end of the rotating shaft is fixedly connected to a cross circular plate, and a plurality of third electric telescopic rods are equidistantly fixedly connected to the front side of the cross circular plate, the end of the extended end of the third electric telescopic rod is fixedly connected to an arc-shaped brush plate, the front side of the movable plate is rotatably connected to a vertical rod via a bracket and a bearing, the top of the vertical rod and the surface of the rotating shaft are fixedly connected to bevel gears, and the two bevel gears are meshed with each other, and the bottom of the inner cavity of the mounting cylinder is fixedly connected to a second tooth plate via a long groove, and the surface of the vertical rod is fixedly connected to a third gear meshing with the second tooth plate.

[0009] Preferably, the clamping mechanism includes an arc-shaped clamping block with a handle, which is slidably arranged inside the inner cylinder, and a number of arc-shaped clamping blocks with a handle are equidistantly arranged around it, a threaded sleeve is threadedly connected to the surface of the inner cylinder, an outer ring is rotatably arranged on the rear side of the threaded sleeve, a number of hollow inclined frames used in conjunction with the arc-shaped clamping block with a handle are equidistantly fixedly connected to the rear side of the outer ring, and a roller used in conjunction with the hollow inclined frame is rotatably connected to the surface of the arc-shaped clamping block with a handle, and two rollers are symmetrically arranged.

[0010] Preferably, the walking mechanism includes a fourth electric telescopic rod, which is fixedly arranged on one side of the outer cylinder, an extended end of the fourth electric telescopic rod is fixedly connected to a side plate, a front side and a rear side of one side of the side plate are fixedly connected to a mounting seat, a roller is arranged inside the mounting seat, a travel control motor driven in matching with the roller is arranged on the top of the mounting seat, a fifth electric telescopic rod is fixedly connected to the top and bottom of one side of the outer cylinder, the ends of the two extended ends of the fifth electric telescopic rod on the same side are commonly fixedly connected to a circular plate, auxiliary wheels are arranged on the top and bottom of one side of the circular plate, and two auxiliary wheels are symmetrically arranged on the front and back sides.

[0011] Preferably, displacement grooves slidably matched with the movable plate are provided on both sides of the inner cavity of the installation cylinder, and a second return spring is fixedly connected between the displacement groove and the movable plate.

[0012] Preferably, a protective cover is fixedly connected to the front side of the cross circular plate, and a camera is arranged inside the protective cover.

[0013] Preferably, the top and bottom of the inner cavity of the outer cylinder are fixedly connected with ball sliders, and the top and bottom of the inner cylinder are provided with sliding grooves slidably matched with the ball sliders.

[0014] Preferably, a plurality of slide plates are equidistantly fixedly connected around the surface of the inner cylinder, a slide plate is slidably connected inside the slide plate, and one end of the slide plate is fixedly connected to the rear side of the arc-shaped clamping block with a handle, and a third return spring is fixedly connected between the slide plate and the slide plate.

[0015] The present invention provides a wire threading and pulling device for building electrical construction. Compared with the existing technology, it has the following beneficial effects: (1) The wire threading and traction device for building electrical construction is provided with an intermittent traction mechanism, a flexible supporting mechanism, a cleaning mechanism, a clamping mechanism and a traveling mechanism between the outer cylinder, the inner cylinder and the installation cylinder. After the device is bound to the cable and positioned centrally inside the pipeline, the intermittent traction mechanism, the flexible supporting mechanism, the cleaning mechanism, the clamping mechanism and the traveling mechanism can be coordinated to enable the cable to be automatically and intermittently dragged and pulled inside the pipeline. During the intermittent traction, the device can automatically and synchronously adjust the tightening state between the device and the inner wall of the pipeline, so that the device can flexibly pull the cable while ensuring the stability of the dragging, and can automatically and synchronously clean the inner wall of the pipeline while dragging the cable.

[0016] (2) The wire threading and traction device for building electrical construction has a rounded outer ring that is rotatably arranged on the surface of a ring plate, so that when the handle-limiting tooth block drives the arc-shaped outer expansion rod to rotate, the arc-shaped outer expansion rod can rub against the rotatable rounded outer ring, so that the friction loss between the arc-shaped outer expansion rod and the rounded outer ring can be reduced.

[0017] (3) The wire threading and pulling device for building electrical construction is provided with an arc-shaped brush plate at the end of the extended end of the third electric telescopic rod, so that the cleaning range of the arc-shaped brush plate can be adjusted to improve its adaptability.

[0018] (4) The wire threading and pulling device for building electrical construction has a camera installed inside the protective cover so that when the device moves along the inner wall of the pipeline, on-site personnel can remotely observe the inner wall of the pipeline through the camera. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the external structure of the present invention; Figure 2 It is a schematic diagram of the external structure of the present invention from another angle; Figure 3 It is a schematic diagram of the internal structure of the inner cylinder of the present invention; Figure 4 It is a schematic diagram of the internal structure of the inner cylinder of the present invention from another angle; Figure 5 It is a schematic diagram of the L-shaped support plate structure of the present invention; Figure 6 For the present invention Figure 3A partial enlarged view of the middle A; Figure 7 For the present invention Figure 3 A partial enlarged view of point B in the middle; Figure 8 It is a schematic diagram of the internal structure of the outer cylinder of the present invention; Fig. 9 Schematic diagram of the intermittent traction mechanism structure of the present invention (I); Fig.10 It is a schematic diagram of the intermittent traction mechanism structure of the present invention (II); Fig.11 It is an expanded view of the outer cylinder and inner cylinder structure of the present invention; Fig.12 It is a schematic diagram of the clamping mechanism structure of the present invention; Fig.13 It is a schematic diagram of the walking mechanism structure of the present invention.

[0020] In the figure: 1, outer cylinder; 2, inner cylinder; 3, intermittent traction mechanism; 301, first electric telescopic rod; 302, arc-shaped composite top plate; 303, U-shaped rod; 304, ring plate; 305, rounded outer ring; 306, driving motor; 307, first rotating rod; 308, second rotating rod; 309, first gear; 310, third rotating rod; 311, second gear; 312, circular seat; 313, handle-limiting tooth block; 314, arc-shaped outward expansion rod; 315, first tooth plate; 316, storage groove; 317, first reset spring; 4, flexible support mechanism; 401, second electric telescopic rod; 402, top tightening plate; 403, retraction control button; 404, extension control button; 405, pressing block; 5, cleaning mechanism; 501, movable plate; 502, rotating shaft; 503, cross circular plate; 504, The third electric telescopic rod; 505, arc-shaped brush plate; 506, vertical rod; 507, bevel gear; 508, second tooth plate; 509, third gear; 510, displacement groove; 511, second return spring; 6, clamping mechanism; 601, arc-shaped clamping block with handle; 602, threaded sleeve; 603, outer ring; 604, hollow oblique frame; 605, roller; 7, walking mechanism; 701, fourth electric telescopic rod; 702, side plate; 703, mounting seat; 704, roller; 705, travel control motor; 706, fifth electric telescopic rod; 707, circular plate; 708, auxiliary wheel; 8, mounting tube; 9, L-shaped support plate; 10, stud ball rod; 11, protective cover; 12, camera; 13, ball slider; 14, slide groove; 15, slide groove plate; 16, slide plate; 17, third return spring. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] See also Figure 1-13 The present invention provides a technical solution: a wire threading and pulling device for building electrical construction, comprising an outer cylinder 1, a mounting cylinder 8 and an inner cylinder 2, wherein the mounting cylinder 8 is fixedly arranged inside the outer cylinder 1, the inner cylinder 2 is slidably arranged inside the outer cylinder 1, and one end of the inner cylinder 2 extends to the inside of the mounting cylinder 8, and a plurality of L-shaped support plates 9 are fixedly connected to the surface of the inner cylinder 2 at equal intervals, and a stud ball rod 10 is connected to the inner thread of the L-shaped support plate 9. As a detailed explanation: the stud ball rod 10 is composed of a threaded rod and a ball, and the ball is arranged on the threaded rod. At the end of the threaded rod, the top and bottom of the inner cavity of the outer tube 1 are fixedly connected with a ball slider 13, and the top and bottom of the inner tube 2 are provided with a slide groove 14 that is slidably matched with the ball slider 13. As a detailed explanation: the ball slider 13 is composed of a slider and a plurality of small balls, the small balls cover the surface of the slider, and the auxiliary slider moves in the slide groove 14. The front side of the cross circular plate 503 is fixedly connected with a protective cover 11, wherein as a detailed explanation: in order to facilitate the observation of the internal conditions of the pipeline, a camera 12 is arranged inside the protective cover 11; The surface of the inner tube 2 is provided with a clamping mechanism 6, which includes an arc-shaped clamping block 601 with a handle, which is slidably arranged inside the inner tube 2, and the arc-shaped clamping block 601 with a handle is equidistantly arranged around it. As a detailed explanation: the inner surface of the arc-shaped clamping block 601 with a handle is equidistantly arranged with a plurality of tooth grooves, the surface of the inner tube 2 is threadedly connected with a threaded sleeve 602, the rear side of the threaded sleeve 602 is rotatably provided with an outer ring 603, and the rear side of the outer ring 603 is equidistantly fixedly connected with a plurality of teeth connected with the handle. The hollow oblique frame 604 used in conjunction with the arc-shaped clamping block 601, the surface of the arc-shaped clamping block 601 with a handle is rotatably connected with a roller 605 used in conjunction with the hollow oblique frame 604, and two rollers 605 are symmetrically arranged, and a plurality of slide plates 15 are fixedly connected at equal intervals around the surface of the inner cylinder 2, and a slide plate 16 is slidably connected inside the slide plate 15, and one end of the slide plate 16 is fixedly connected to the rear side of the arc-shaped clamping block 601 with a handle, and a third return spring 17 is fixedly connected between the slide plate 16 and the slide plate 15; A walking mechanism 7 is provided on both sides of the outer cylinder 1. The walking mechanism 7 includes a fourth electric telescopic rod 701, which is fixedly arranged on one side of the outer cylinder 1. The extended end of the fourth electric telescopic rod 701 is fixedly connected to a side plate 702. The front and rear sides of one side of the side plate 702 are fixedly connected to a mounting seat 703. A roller 704 is provided inside the mounting seat 703. A travel control motor 705 driven in matching with the roller 704 is provided on the top of the mounting seat 703. A fifth electric telescopic rod 706 is fixedly connected to the top and bottom of one side of the outer cylinder 1. The ends of the extended ends of the two fifth electric telescopic rods 706 on the same side are commonly fixedly connected to a circular plate 707. Auxiliary wheels 708 are provided on the top and bottom of one side of the circular plate 707, and two auxiliary wheels 708 are symmetrically provided on the front and rear sides.

[0023] As a preferred embodiment, in order to facilitate automatic intermittent dragging and traction of the cable, an intermittent traction mechanism 3 is provided on the surface of the outer cylinder 1, and the intermittent traction mechanism 3 includes a first electric telescopic rod 301, two first electric telescopic rods 301 are provided, and the two first electric telescopic rods 301 are respectively fixedly arranged at the top and bottom of the inner cavity of the outer cylinder 1 through a bracket, and the end of the extended end of the first electric telescopic rod 301 is fixedly connected with an arc-shaped composite top plate 302. As a detailed explanation: the arc-shaped composite top plate 302 is composed of a top plate and a rubber block, the rubber block covers the surface of the top plate, and the arc-shaped composite top plate 302 extends to the outside of the outer cylinder 1, and the surface of the extended end of the first electric telescopic rod 301 at the top is fixedly connected with a U-shaped rod 303 through a bracket, and both ends of the bottom of the U-shaped rod 303 are fixedly connected with a ring plate 304, and the surface of the ring plate 304 is rotatably connected with a rounded outer ring 305, and the bottom of the inner cavity of the outer cylinder 1 is fixedly connected with a drive motor 306, and the output shaft of the drive motor 306 is fixedly connected with a first rotating rod 307 through a coupling. The bottom of the inner cavity of the outer cylinder 1 is rotatably connected to a second rotating rod 308 through a bearing, and the tops of the second rotating rod 308 and the first rotating rod 307 are fixedly connected to a first gear 309, and the two first gears 309 are meshed with each other. The two sides of the bottom of the inner cavity of the outer cylinder 1 are rotatably connected to a third rotating rod 310 through a bearing, and the surface of the third rotating rod 310 is fixedly connected to a second gear 311 meshed with the first gear 309, and the top of the third rotating rod 310 is fixedly connected to a circular seat 312, and the surface of the circular seat 312 surrounds A plurality of handle limiting tooth blocks 313 are arranged at equal intervals, and an arc-shaped outward expansion rod 314 used in conjunction with the rounded outer ring 305 is fixedly connected to the top of the handle limiting tooth block 313, and a first tooth plate 315 meshing with the handle limiting tooth block 313 is fixedly connected on both sides of the inner tube 2. A plurality of storage grooves 316 slidably adapted to the handle limiting tooth block 313 are equidistantly arranged inside the circular seat 312, and a first return spring 317 is fixedly connected between the storage groove 316 and the handle limiting tooth block 313.

[0024] As a preferred embodiment, in order to facilitate flexible reinforcement of the device, a flexible supporting mechanism 4 is provided on the rear side of the stud ball rod 10, and the flexible supporting mechanism 4 includes a second electric telescopic rod 401, and the second electric telescopic rod 401 is fixedly arranged on the surface of the stud ball rod 10, and the end of the extended end of the second electric telescopic rod 401 is fixedly connected with a tightening plate 402, and a retraction control button 403 used in combination with the second electric telescopic rod 401 is fixedly connected to the top of the top arc-shaped composite top plate 302 through an installation groove, and an extension control button 404 used in combination with the second electric telescopic rod 401 is fixedly connected to the top of the outer tube 1 through an installation groove, and a pressure block 405 used in combination with the extension control button 404 is fixedly connected to the bottom of the lateral bend of the top arc-shaped composite top plate 302.

[0025] As a preferred embodiment, in order to facilitate the cleaning of the inside of the pipeline while pulling the cable, a cleaning mechanism 5 is provided on the front side of the outer cylinder 1, and the cleaning mechanism 5 includes a movable plate 501, and the movable plate 501 is slidably arranged inside the mounting cylinder 8. The front side of the movable plate 501 is rotatably connected to a rotating shaft 502 through a bearing, and one end of the rotating shaft 502 extends to the front side of the outer cylinder 1. The front end of the rotating shaft 502 is fixedly connected to a cross circular plate 503, and the front side of the cross circular plate 503 is equidistantly fixedly connected to a plurality of third electric telescopic rods 504, and the end of the extended end of the third electric telescopic rod 504 is fixedly connected to an arc-shaped brush Plate 505, the front side of the movable plate 501 is rotatably connected with a vertical rod 506 through a bracket and a bearing, the top of the vertical rod 506 and the surface of the rotating shaft 502 are fixedly connected with a bevel gear 507, and the two bevel gears 507 are meshed with each other, the bottom of the inner cavity of the mounting cylinder 8 is fixedly connected with a second tooth plate 508 by opening a long groove, the surface of the vertical rod 506 is fixedly connected with a third gear 509 meshed with the second tooth plate 508, displacement grooves 510 slidably matched with the movable plate 501 are opened on both sides of the inner cavity of the mounting cylinder 8, and a second reset spring 511 is fixedly connected between the displacement groove 510 and the movable plate 501.

[0026] The steps to use are as follows: Preferably, step 1, wire end binding: insert the end of the cable into the inner tube 2 until the cable end enters the arc-shaped clamping block 601 with a handle, then screw the threaded sleeve 602, so that the threaded sleeve 602 drives the outer ring 603 and the hollow inclined frame 604 to move backward, and the hollow inclined frame 604 moves backward to squeeze the roller 605, so that the roller 605 drives multiple arc-shaped clamping blocks 601 with handles to clamp and fix the cable surface; Step 2: Centering on the inner wall of the pipe: Find the midpoints of both sides of the inner cavity of the pipe, then hold the outer tube 1 in the air at the center of the inner cavity of the pipe, then use the fourth electric telescopic rod 701 to drive the roller 704 to make the two rollers 704 contact the inner walls on both sides of the inner cavity of the pipe, then use the fifth electric telescopic rod 706 to drive the auxiliary wheel 708 to contact the inner wall of the pipe, and then use the auxiliary device to center the inner wall, and then screw the stud ball rod 10 to make multiple stud ball rods 10 have the same support length to perform centering auxiliary support on the inner wall of the pipe; Step 3, intermittent dragging of the traction cable: wait for the device to be centrally positioned in the pipeline, then start the first electric telescopic rod 301, the first electric telescopic rod 301 starts its extended end to drive the arc-shaped composite top plate 302 to press against the upper and lower parts of the inner wall of the pipeline, when the top first electric telescopic rod 301 drives the arc-shaped composite top plate 302 to press against the top of the pipe wall, the extended end of the top first electric telescopic rod 301 will also drive the U-shaped rod 303, the ring plate 304 and the rounded outer ring 305 to rise, and the rounded outer ring 305 rises to expand and squeeze the multiple arc-shaped outward expansion rods 314, so that the arc-shaped outward expansion rods 314 drive the handle-limiting tooth blocks 313 moves outward, the handle limit tooth block 313 expands outward to form meshing with the first tooth plate 315, and then the drive motor 306 is started, and the drive motor 306 drives the first rotating rod 307 and the first gear 309 to rotate. The first gear 309 meshes with the adjacent first gear 309 and the second gear 311, prompting the third rotating rod 310 to drive the circular seat 312 and a plurality of handle limit tooth blocks 313 to rotate. The rotation of the handle limit tooth block 313 meshes with the first tooth plate 315, thereby driving the inner tube 2 to pull back to the inside of the outer tube 1. The movement of the inner tube 2 drives the cable to be dragged and pulled through the clamping mechanism 6; After the inner tube 2 drives the cable to move to the inner limit position of the outer tube 1, the first electric telescopic rod 301 is reset and started, so that the first electric telescopic rod 301 drives the arc-shaped composite top plate 302 to retract and break away from the extrusion on the inner wall of the pipeline. The extension end of the top first electric telescopic rod 301 retracts and successively drives the U-shaped rod 303, the ring plate 304 and the rounded outer ring 305 to descend and reset. After the rounded outer ring 305 is reset, the handle-limiting tooth block 313 will retract to the surface of the circular seat 312, releasing the engagement between the handle-limiting tooth block 313 and the first tooth plate 315. At the same time, the retraction of the top arc-shaped composite top plate 302 will drive the pressing block 405 When the extension control button 404 is pressed, the second electric telescopic rod 401 is automatically started by the force on the extension control button 404, and then the top plate 402 is driven to extend and press against the inner wall of the pipe through the extension end. It should be noted that when the top arc composite top plate 302 is pressed against the inner wall of the pipe, the retraction control button 403 is forced to control the extension end of the second electric telescopic rod 401 to retract. After the top plate 402 is squeezed against the pipe wall to stabilize the position of the inner tube 2, the travel control motor 705 is started, and the travel control motor 705 drives the roller 704 to rotate. The rotation of the roller 704 will rub against the inner wall of the pipe, thereby prompting the outer tube 1 to continue to move forward as a whole; After the outer tube 1 moves forward to a suitable position, the first electric telescopic rod 301 is restarted to cause the arc-shaped composite top plate 302 to be squeezed and contacted with the pipe wall again. The top arc-shaped composite top plate 302 is squeezed with the pipe wall, causing the retraction control button 403 to be stressed. The retraction control button 403 is stressed to control the extension end of the second electric telescopic rod 401 to retract, causing the top tightening plate 402 to be out of contact with the pipe wall, releasing the limit control of the inner tube 2, and then continuing to press the above action to drive the inner tube 2 and the cable back to the inside of the outer tube 1, so as to achieve intermittent dragging and traction of the cable; Step 4, automatic cleaning of the tube wall: the inner tube 2 is caused to retract into the outer tube 1 through the engagement of the handle-limiting tooth block 313 and the first tooth plate 315, and the driving cooperation of the driving motor 306. During the process of the inner tube 2 entering the installation tube 8, the end of the inner tube 2 will push the movable plate 501 to move, and the movable plate 501 drives the rotating shaft 502 and the vertical rod 506 to move. The movement of the vertical rod 506 drives the third gear 509 to engage with the second tooth plate 508, so that the vertical rod 506 rotates synchronously during the movement. The rotation of the vertical rod 506 is driven by the engagement of two bevel gears 507 to drive the rotating shaft 502 to be rotated synchronously. The rotation of the rotating shaft 502 drives the cross circular plate 503, the third electric telescopic rod 504 and the arc brush plate 505 to rotate. The rotation of the arc brush plate 505 will clean the tube wall.

Claims

1. A wire threading and pulling device for building electrical construction, comprising an outer cylinder (1), a mounting cylinder (8) and an inner cylinder (2), wherein the mounting cylinder (8) is fixedly arranged inside the outer cylinder (1), the inner cylinder (2) is slidably arranged inside the outer cylinder (1), and one end of the inner cylinder (2) extends to the inside of the mounting cylinder (8), characterized in that: The surface of the inner cylinder (2) is equidistantly and fixedly connected with a plurality of L-shaped support plates (9); the internal threads of the L-shaped support plates (9) are connected with stud ball rods (10); the surface of the outer cylinder (1) is provided with an intermittent traction mechanism (3); the rear side of the stud ball rod (10) is provided with a flexible support mechanism (4); the front side of the outer cylinder (1) is provided with a cleaning mechanism (5); the surface of the inner cylinder (2) is provided with a clamping mechanism (6); and both sides of the outer cylinder (1) are provided with walking mechanisms (7).

2. A wire threading and pulling device for building electrical construction according to claim 1, characterized in that: The intermittent traction mechanism (3) comprises a first electric telescopic rod (301), two first electric telescopic rods (301) are provided, and the two first electric telescopic rods (301) are respectively fixedly arranged at the top and bottom of the inner cavity of the outer cylinder (1) through brackets, and the end of the extended end of the first electric telescopic rod (301) is fixedly connected to an arc-shaped composite top plate (302), and the arc-shaped composite top plate (302) extends to the outside of the outer cylinder (1), and the surface of the extended end of the first electric telescopic rod (301) at the top is fixedly connected to the outer cylinder (1) through the bracket. A U-shaped rod (303) is provided, both ends of the bottom of the U-shaped rod (303) are fixedly connected to ring plates (304), a rounded outer ring (305) is rotatably connected to the surface of the ring plate (304), a drive motor (306) is fixedly connected to the bottom of the inner cavity of the outer cylinder (1), an output shaft of the drive motor (306) is fixedly connected to a first rotating rod (307) via a coupling, a second rotating rod (308) is rotatably connected to the bottom of the inner cavity of the outer cylinder (1) via a bearing, and the second rotating rod (308) and the first rotating rod (307) are The top of each of the outer cylinders (1) is fixedly connected to a first gear (309), and the two first gears (309) are meshed with each other. The two sides of the bottom of the inner cavity of the outer cylinder (1) are rotatably connected to a third rotating rod (310) via a bearing. The surface of the third rotating rod (310) is fixedly connected to a second gear (311) meshing with the first gear (309). The top of the third rotating rod (310) is fixedly connected to a circular seat (312). The surface of the circular seat (312) is equidistantly provided with a plurality of handle-limiting tooth blocks (313). The top of the handle limiting tooth block (313) is fixedly connected to an arc-shaped outward expansion rod (314) matched with the rounded outer ring (305), and both sides of the inner cylinder (2) are fixedly connected to first tooth plates (315) meshing with the handle limiting tooth block (313), and a plurality of receiving grooves (316) slidably matched with the handle limiting tooth block (313) are equidistantly arranged inside the circular seat (312), and a first return spring (317) is fixedly connected between the receiving groove (316) and the handle limiting tooth block (313).

3. A wire threading and pulling device for building electrical construction according to claim 2, characterized in that: The flexible support mechanism (4) comprises a second electric telescopic rod (401), the second electric telescopic rod (401) being fixedly arranged on the surface of the stud ball rod (10), the end of the extended end of the second electric telescopic rod (401) being fixedly connected to a tightening plate (402), a retraction control button (403) used in conjunction with the second electric telescopic rod (401) being fixedly connected to the top of the arc-shaped composite top plate (302) via a mounting groove, an extension control button (404) used in conjunction with the second electric telescopic rod (401) being fixedly connected to the top of the outer tube (1) via a mounting groove, and a pressure block (405) used in conjunction with the extension control button (404) being fixedly connected to the bottom of the transverse bending portion of the arc-shaped composite top plate (302) at the top.

4. A wire threading and pulling device for building electrical construction according to claim 1, characterized in that: The cleaning mechanism (5) comprises a movable plate (501), the movable plate (501) being slidably arranged inside the mounting cylinder (8), the front side of the movable plate (501) being rotatably connected to a rotating shaft (502) via a bearing, and one end of the rotating shaft (502) extending to the front side of the outer cylinder (1), the front end of the rotating shaft (502) being fixedly connected to a cross circular plate (503), the front side of the cross circular plate (503) being equidistantly fixedly connected to a plurality of third electric telescopic rods (504), the end of the extended end of the third electric telescopic rod (504) The movable plate (501) is fixedly connected to an arc-shaped brush plate (505); the front side of the movable plate (501) is rotatably connected to a vertical rod (506) via a bracket and a bearing; the top of the vertical rod (506) and the surface of the rotating shaft (502) are fixedly connected to a bevel gear (507), and the two bevel gears (507) are meshed with each other; the bottom of the inner cavity of the mounting tube (8) is fixedly connected to a second tooth plate (508) via a long groove; the surface of the vertical rod (506) is fixedly connected to a third gear (509) meshing with the second tooth plate (508).

5. A wire threading and pulling device for building electrical construction according to claim 1, characterized in that: The clamping mechanism (6) comprises an arc-shaped clamping block (601) with a handle, the arc-shaped clamping block (601) with a handle is slidably arranged inside the inner cylinder (2), and a plurality of arc-shaped clamping blocks (601) with a handle are arranged equidistantly around the inner cylinder (2), a threaded sleeve (602) is threadedly connected to the surface of the inner cylinder (2), an outer ring (603) is rotatably arranged at the rear side of the threaded sleeve (602), a plurality of hollow inclined frames (604) matched with the arc-shaped clamping block (601) with a handle are fixedly connected equidistantly around the rear side of the outer ring (603), a rotating roller (605) matched with the hollow inclined frame (604) is rotatably connected to the surface of the arc-shaped clamping block (601), and two rotating rollers (605) are symmetrically arranged.

6. A wire threading and pulling device for building electrical construction according to claim 1, characterized in that: The walking mechanism (7) comprises a fourth electric telescopic rod (701), the fourth electric telescopic rod (701) being fixedly arranged on one side of the outer cylinder (1), an extended end of the fourth electric telescopic rod (701) being fixedly connected to a side plate (702), a mounting seat (703) being fixedly connected to the front and rear sides of one side of the side plate (702), a roller (704) being arranged inside the mounting seat (703), a travel control motor (705) matched with the roller (704) being arranged on the top of the mounting seat (703), a fifth electric telescopic rod (706) being fixedly connected to the top and bottom of one side of the outer cylinder (1), the ends of the extended ends of the two fifth electric telescopic rods (706) on the same side being fixedly connected to a circular plate (707), auxiliary wheels (708) being arranged on the top and bottom of one side of the circular plate (707), and two auxiliary wheels (708) being symmetrically arranged on the front and rear sides.

7. A wire threading and pulling device for building electrical construction according to claim 4, characterized in that: Displacement grooves (510) slidably matched with the movable plate (501) are provided on both sides of the inner cavity of the installation cylinder (8), and a second return spring (511) is fixedly connected between the displacement groove (510) and the movable plate (501).

8. A wire threading and pulling device for building electrical construction according to claim 4, characterized in that: A protective cover (11) is fixedly connected to the front side of the cross circular plate (503), and a camera (12) is arranged inside the protective cover (11).

9. A wire threading and pulling device for building electrical construction according to claim 1, characterized in that: The top and bottom of the inner cavity of the outer cylinder (1) are both fixedly connected to a ball slider (13), and the top and bottom of the inner cylinder (2) are both provided with a slide groove (14) slidably matched with the ball slider (13).

10. A wire threading and pulling device for building electrical construction according to claim 5, characterized in that: A plurality of slide plates (15) are fixedly connected at equal intervals around the surface of the inner cylinder (2); a slide plate (16) is slidably connected inside the slide plate (15); one end of the slide plate (16) is fixedly connected to the rear side of the arc-shaped clamping block (601) with a handle; and a third return spring (17) is fixedly connected between the slide plate (16) and the slide plate (15).

Images