Subway communication signal optical cable pay-off device

Abstract

The utility model discloses a subway communication signal optical cable pay-off device which comprises a cable pay-off vehicle, a fixing frame is arranged on the cable pay-off vehicle, the fixing frame is used for fixing a cable coil, a rotating shaft of the fixing frame is vertically arranged, a driving motor is coaxially arranged on the rotating shaft of the fixing frame, and the driving motor is used for driving the cable coil to rotate. A guide mechanism is further arranged at the tail of the cable pay-off vehicle, and the guide mechanism is rotationally arranged on the cable pay-off vehicle and used for laying a cable on a supporting frame of a subway tunnel. The problems that in the prior art, when cables are laid in a subway tunnel, the process of lifting and lifting the cables to a supporting frame is low in efficiency, labor is wasted, and the surface layers of the cables can be abraded are solved.

Description

Technical Field

[0001] The utility model belongs to the field of subway communication optical cable laying equipment, in particular to a subway communication signal optical cable laying device. Background Art

[0002] When installing and positioning communication optical cables or electrical cables in the subway, workers first set up support frames at equal intervals on the side walls of the tunnel segments, and then use the track-based pay-off vehicle to lay the cables on the cable reels in the tunnel. During operation, the cable reels are generally paid out as the track-based pay-off vehicle moves. Cables buried in the bottom of the tunnel are directly paid out to the ground, and workers place them into the trench. For cables installed on support frames of tunnel segments, workers need to follow the track-based pay-off vehicle to operate. The track-based pay-off vehicle pays out the cables in front, and workers need to lift the cables onto the support frames. For higher support frames, they also need to use support forks to lift them. This process is not only inefficient, time-consuming and labor-intensive, but workers will also fix the cables for a second time when lifting them, which will cause wear on the outer layer of the cables. Utility Model Content

[0003] The purpose of the utility model is to propose a subway communication signal optical cable laying device in order to solve the problems in the prior art that the process of lifting and supporting the cable to the support frame when laying the cable in the subway tunnel is low in efficiency, laborious and will cause wear on the surface of the cable.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a subway communication signal optical cable pay-off device, including a cable pay-off vehicle, a fixed frame is provided on the cable pay-off vehicle, the fixed frame is used to fix the cable coil, the rotating shaft of the fixed frame is vertically arranged, and a driving motor is coaxially arranged on the rotating shaft of the fixed frame. A guide mechanism is also provided at the tail of the cable pay-off vehicle, and the guide mechanism is rotatably arranged on the cable pay-off vehicle. The guide mechanism is used to lay the cable on the support frame of the subway tunnel.

[0005] As a further description of the above technical solution: the guide mechanism includes a support seat, a telescopic rod, and a straightening assembly. The support seat is fixed on the cable pay-off vehicle. The telescopic rod is rotatably arranged on the support seat. The telescopic rod is composed of a rotating tube and an extension tube. The extension tube is passed through the rotating tube. A rotation limiting assembly is arranged between the support seat and the rotating tube. The rotation limiting assembly limits the rotation of the rotating tube. The straightening assembly is arranged at one end of the extension tube away from the rotating tube. The straightening assembly is used to correct bent cables.

[0006] As a further description of the above technical solution: the rotating tube is provided with installation adjustment holes at equal intervals along its length direction, and the extension tube is provided with positioning holes, and the installation adjustment holes correspond to the positioning holes.

[0007] As a further description of the above technical solution: the rotation limit assembly includes a rotating seat, a rotating shaft, an external spline, and an internal spline. The rotating seat is fixed on the supporting seat, the rotating shaft is fixed on the end of the rotating tube away from the extension tube, the rotating shaft is rotatably adapted in the rotating seat, the internal spline is coaxially arranged on the rotating seat, the external spline is slidably sleeved on the rotating shaft, the internal spline corresponds to the external spline, the rotating shaft is provided with a limiting groove along its axial direction, the inner circumference of the external spline is provided with a limiting strip along its axial direction, the limiting strip slides in the limiting groove, and a rotating fork is fixedly provided at one end of the external spline away from the rotating seat.

[0008] As a further description of the above technical solution: the straightening assembly includes a mounting table, a first pulley group, a second pulley group, and a straightening pulley. The mounting table is fixedly arranged at the end of the extension tube away from the rotating tube, the mounting table is horizontally arranged, the first pulley group, the second pulley group, and the straightening pulley are all arranged on the mounting table, the straightening pulley is arranged between the first pulley group and the second pulley group, and the straightening pulley is slidably arranged along the surface of the mounting table.

[0009] As a further description of the above technical solution: a sliding groove is provided on the mounting platform, a mounting block is slidably provided in the sliding groove, the straightening pulley is rotatably provided on the mounting block, the mounting block is slidably provided in the sliding groove, an adjusting screw is provided on the mounting platform, the adjusting screw is threadedly assembled on the mounting platform, the axis of the adjusting screw is parallel to the length direction of the sliding groove, one end of the adjusting screw is rotatably connected to the mounting block, and the other end extends out of the outside of the mounting platform.

[0010] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0011] (1) Through the guide mechanism, the cables are directly laid on the support frame, which avoids the secondary operation of workers, improves work efficiency and reduces the wear of the cables. In addition, through the rotation and adjustable length of the telescopic rod, the cables can be laid on support frames of different heights and can adapt to the support frames installed on the curved segments of subway tunnels.

[0012] (2) The straightening assembly can be used to straighten the bent cable so that the cable can be placed straight and stably on the support frame. The straightening pulley can also be adjusted to make the cable bend toward the subway tunnel wall as a whole, preventing the cable from rolling when workers are fixing the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view of the utility model.

[0014] Figure 2 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 3 It is a schematic diagram of the guide mechanism structure of the utility model.

[0016] Figure 4 It is a schematic diagram of the structure of the rotation limiting component of the utility model.

[0017] Legend: 1. Cable pay-off vehicle; 2. Fixing frame; 3. Cable reel; 4. Support frame; 5. Support seat; 6. Rotating tube; 7. Extension tube; 8. Rotating seat; 9. Rotating shaft; 10. External spline; 11. Internal spline; 12. Rotating fork; 13. Limiting groove; 14. Limiting strip; 15. Mounting table; 16. First pulley block; 17. Second pulley block; 18. Straightening pulley; 19. Adjusting screw. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-4 The utility model provides a technical solution for a subway communication signal optical cable laying device:

[0020] A subway communication signal optical cable pay-off device comprises a cable pay-off vehicle 1, a fixing frame 2 is arranged on the cable pay-off vehicle 1, the fixing frame 2 is used to fix a cable reel 3, a rotating shaft of the fixing frame 2 is arranged vertically, a driving motor is arranged coaxially with the rotating shaft of the fixing frame 2, the cable reel 3 rotates under the action of the driving motor to pay off the cable, and a guide mechanism is also arranged at the tail of the cable pay-off vehicle 1, the guide mechanism is rotatably arranged on the cable pay-off vehicle 1, and the guide mechanism is used to lay the cable on a supporting frame 4 of a tunnel.

[0021] The guide mechanism includes a support seat 5, a telescopic rod, and a straightening assembly. The support seat 5 is fixed to the cable pay-off vehicle 1 by bolts. The telescopic rod is rotatably arranged on the support seat 5. The telescopic rod is composed of a rotating tube 6 and an extension tube 7. The extension tube 7 is inserted into the rotating tube 6. The rotating tube 6 is provided with installation adjustment holes at equal intervals along its length direction. The extension tube 7 is provided with positioning holes. The installation adjustment holes correspond to the positioning holes and are fixed by bolts, so that the length of the telescopic rod is fixed. The elongation of the extension tube 7 is adjusted by adjusting the position of the positioning holes. A rotation limit assembly is arranged between the support seat 5 and the rotating tube 6, and the rotation of the rotating tube 6 is limited by the rotation limit assembly.

[0022] The rotation limit assembly includes a rotating seat 8, a rotating shaft 9, an external spline 10, and an internal spline 11. The rotating seat 8 is fixed on the supporting seat 5, and the rotating shaft 9 is fixed on the end of the rotating tube 6 away from the extension tube 7. The rotating shaft 9 is rotatably adapted to the rotating seat 8. The internal spline 11 is coaxially arranged on the rotating seat 8, and the external spline 10 is slidably sleeved on the rotating shaft 9. The internal spline 11 corresponds to the external spline 10. A limiting groove 13 is provided along the axial direction of the rotating shaft 9, and a limiting strip 14 is provided on the inner circumference of the external spline 10 along the axial direction of the external spline 10. The limiting strip 14 slides in the limiting groove 13. A rotating fork 12 is fixedly provided at one end of the external spline 10 away from the rotating seat 8. When the rotating fork 12 slides along the rotating shaft 9 in a direction away from the supporting seat 5, the external spline 10 is disengaged from the internal spline 11. The position of the telescopic rod is adjusted by rotating the fork 12 or rotating the telescopic rod as a whole. When the external spline 10 cooperates with the internal spline 11, the telescopic rod cannot rotate.

[0023] The straightening assembly includes a mounting platform 15, a first pulley group 16, a second pulley group 17, and a straightening pulley 18. The mounting platform 15 is fixedly arranged at the end of the extension tube 7 away from the rotating tube 6. The mounting platform 15 is arranged horizontally. The first pulley group 16, the second pulley group 17, and the straightening pulley 18 are all arranged on the mounting platform 15. The straightening pulley 18 is arranged between the first pulley group 16 and the second pulley group 17. The straightening pulley 18 is slidably arranged along the mounting platform 15. A sliding groove is arranged on the mounting platform 15, and a mounting block is slidably arranged in the sliding groove. The straightening pulley 18 is rotatably arranged on the mounting block, and the mounting block is slidably arranged in the sliding groove. An adjusting screw 19 is arranged on the mounting platform 15. The adjusting screw 19 is threadedly assembled on the mounting platform 15, and the axis of the adjusting screw 19 is parallel to the length direction of the sliding groove. One end of the adjusting screw 19 is rotatably connected to the mounting block, and the other end extends out of the mounting platform 15. The position of the mounting block is adjusted by the adjusting screw 19 to adjust the position of the straightening pulley 18.

[0024] Working principle: When laying cables, workers first adjust the length of the telescopic rod to adapt to the height of the support frame 4. When adjusting the length of the adjusting rod, the upper surface of the mounting platform 15 is higher than the height of the support frame 4. Then, the angle of the adjusting rod is adjusted by rotating the limit assembly so that the adjusting rod is away from the support frame 4 to avoid interference with the support frame 4. Then, the cable passes through the first pulley group 16, bypasses the straightening pulley 18, and then passes through the second pulley group 17. The outgoing cable head is fixed through the pay-off sleeve and then fixed on the support frame 4. Then, the cable pay-off vehicle 1 is started, and the drive motor is started at the same time. As the cable pay-off vehicle 1 moves, the cable is laid on the support frame 4 by the second pulley group 17. The cable has a certain bend due to being wound on the cable reel 3 for a long time. After the cable passes through the straightening assembly, its bend is corrected so that the cable can be relatively straightly set on the support frame 4.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A subway communication signal optical cable laying device, characterized in that The invention comprises a cable pay-off vehicle (1), wherein a fixing frame (2) is arranged on the cable pay-off vehicle (1), wherein the fixing frame (2) is used to fix a cable coil (3), wherein a rotating shaft of the fixing frame (2) is arranged vertically, and a driving motor is arranged coaxially with the rotating shaft of the fixing frame (2), and a guide mechanism is also arranged at the rear of the cable pay-off vehicle (1), wherein the guide mechanism is rotatably arranged on the cable pay-off vehicle (1), and wherein the guide mechanism is used to lay the cable on a support frame (4) of a subway tunnel.

2. A subway communication signal optical cable laying device according to claim 1, characterized in that: The guiding mechanism comprises a support seat (5), a telescopic rod and a straightening assembly. The support seat (5) is fixed on the cable pay-off vehicle (1). The telescopic rod is rotatably arranged on the support seat (5). The telescopic rod is composed of a rotating tube (6) and an extension tube (7). The extension tube (7) is inserted into the rotating tube (6). A rotation limiting assembly is arranged between the support seat (5) and the rotating tube (6). The rotation limiting assembly limits the rotation of the rotating tube (6). The straightening assembly is arranged at one end of the extension tube (7) away from the rotating tube (6). The straightening assembly is used to correct a bent cable.

3. A subway communication signal optical cable laying device according to claim 2, characterized in that: The rotating tube (6) is provided with installation adjustment holes at equal intervals along its length direction, and the extension tube (7) is provided with positioning holes, and the installation adjustment holes correspond to the positioning holes.

4. A subway communication signal optical cable laying device according to claim 2, characterized in that: The rotation limiting assembly comprises a rotating seat (8), a rotating shaft (9), an external spline (10), and an internal spline (11); the rotating seat (8) is fixed on the supporting seat (5); the rotating shaft (9) is fixed on the end of the rotating tube (6) away from the extending tube (7); the rotating shaft (9) is rotatably adapted in the rotating seat (8); the internal spline (11) is coaxially arranged on the rotating seat (8); the external spline (10) is slidably sleeved on the rotating shaft (9); the internal spline (11) corresponds to the external spline (10); a limiting groove (13) is provided on the rotating shaft (9) along its axial direction; a limiting strip (14) is provided on the inner circumference of the external spline (10) along its axial direction; the limiting strip (14) slides in the limiting groove (13); and a rotating fork (12) is fixedly arranged on the end of the external spline (10) away from the rotating seat (8).

5. The subway communication signal optical cable laying device according to claim 2, characterized in that: The straightening assembly comprises a mounting platform (15), a first pulley group (16), a second pulley group (17), and a straightening pulley (18); the mounting platform (15) is fixedly arranged at the end of the extension tube (7) away from the rotating tube (6); the mounting platform (15) is arranged horizontally; the first pulley group (16), the second pulley group (17), and the straightening pulley (18) are all arranged on the mounting platform (15); the straightening pulley (18) is arranged between the first pulley group (16) and the second pulley group (17); and the straightening pulley (18) is arranged to slide along the surface of the mounting platform (15).

6. A subway communication signal optical cable laying device according to claim 5, characterized in that: The mounting platform (15) is provided with a sliding groove, a mounting block is slidably arranged in the sliding groove, the straightening pulley (18) is rotatably arranged on the mounting block, the mounting block is slidably arranged in the sliding groove, an adjusting screw (19) is provided on the mounting platform (15), the adjusting screw (19) is threadedly assembled on the mounting platform (15), the axis of the adjusting screw (19) is parallel to the length direction of the sliding groove, one end of the adjusting screw (19) is rotatably connected to the mounting block, and the other end extends out of the outside of the mounting platform (15).

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