Steering system for cable laying and use method thereof

Abstract

The invention provides a novel steering system for cable laying and a use method thereof, and the system comprises a main supporting body, the bottom of the main supporting body is vertically provided with a first supporting part, and the top of the main supporting body is horizontally provided with a first anti-rotation part perpendicular to the main supporting body; the movable supporting body is movably connected to one end of the main supporting body, a second supporting part is vertically arranged at the bottom of the movable supporting body, second anti-rotation parts parallel to the first anti-rotation parts are arranged on the two sides of the movable supporting body, and one end of the main supporting body, one end of the movable supporting body, the first anti-rotation parts and the second anti-rotation parts abut against the top of a working well. The first supporting part and the second supporting part abut against the two opposite corners of the working well respectively. The vertical supporting body is vertically and movably connected to the main supporting body, and a first positioning mechanism used for fixing the horizontal position of the vertical supporting body and a second positioning mechanism used for fixing the vertical position of the vertical supporting body are arranged on the main supporting body; a steering wheel is vertically and rotatably arranged on the steering frame; the steering frame is movably connected with the vertical supporting body through a connecting piece.

Description

Technical Field

[0001] The invention belongs to the technical field of cable laying and relates to a steering system for cable laying and a use method thereof. Background Art

[0002] Cable laying refers to the process of laying and installing cables along a surveyed route to form a cable line. Depending on the application, cable laying methods can be categorized as overhead, underground (in pipes and direct burial), underwater, on walls, and in tunnels. Choosing the right cable laying method is crucial to ensuring transmission quality, reliability, and maintenance.

[0003] Currently, when laying cables in cable conduits, a pulling head is inserted through a prefabricated hole in the conduit and connected to the end of the cable. Tension is then applied to the pulling head to pull the cable through the conduit. At some points where the cable needs to be diverted, a steering wheel is installed to guide the cable and reduce friction, thereby protecting the cable. Typically, a working well is located at the turning point of the cable conduits in different directions. The X side of the working well is connected to one row of cable conduits (with openings for cable passage), and the Y side is connected to another row of cable conduits. After the cable is pulled from the X-side conduit, it is diverted within the working well and enters the Y-side conduit. The steering wheel is installed within the working well, and the cable conduits typically have numerous pre-cut holes, so the positioning of the steering wheel requires multiple adjustments. Summary of the Invention

[0004] The object of the present invention is to provide a new steering system for cable laying and a method of using the same.

[0005] In order to achieve the above technical effects, the present invention provides a steering system for cable laying, comprising:

[0006] A horizontal main support body, wherein a first support portion is vertically provided at the bottom of the main support body, and a first anti-rotation portion is horizontally provided at the top of the main support body and is perpendicular to the main support body;

[0007] A movable support body, the movable support body is movably connected to one end of the main support body, a second support portion is vertically provided at the bottom of the movable support body, and second anti-rotation portions parallel to the first anti-rotation portion are provided on both sides of the movable support body, one end of the main support body, one end of the movable support body, the first anti-rotation portion and the second anti-rotation portion all abut against the top of a working well, and the first support portion and the second support portion respectively abut against two opposite corners of the working well;

[0008] A vertical support body, the vertical support body is vertically movably connected to the main support body, and the main support body is provided with a first positioning mechanism for fixing the horizontal position of the vertical support body and a second positioning mechanism for fixing the vertical position of the vertical support body;

[0009] A steering frame, on which a steering wheel is vertically rotatably provided;

[0010] A connecting piece is provided, through which the steering frame and the vertical support body are movably connected.

[0011] The present invention is further configured such that a first movable groove is vertically formed through the main support body, second movable grooves are horizontally formed on both sides of the first movable groove, both ends of the first movable groove and the second movable groove are spaced apart from both ends of the main support body by a set distance, and a plurality of first fixed teeth are provided on the top of the second movable groove;

[0012] The first positioning mechanism includes a movable seat, the vertical support body is vertically movably connected to the movable seat, and the vertical support body vertically passes through the first movable groove, the longitudinal section of the movable seat is cross-shaped, both sides of the top and bottom of the movable seat are movably fitted with the inner wall of the first movable groove, the bottom of the middle part of the movable seat is rotatably provided with a drag reducing member that movably abuts against the bottom of the second movable groove, two first support seats are provided on the side of the movable seat away from the first support portion, a first gear column is horizontally rotatably provided between the two first support seats, the top of the first gear column is meshed with the first fixed tooth body, and the steering frame and the first gear column are located on both sides of the vertical support body;

[0013] A fixed seat is horizontally arranged at the bottom of the movable seat, and a locking seat is vertically and movably connected to the outer side of the movable seat. A first elastic member that is continuously in a compressed state is vertically arranged between the bottom of the locking seat and the top of the fixed seat. The upper side of the locking seat is an arc shape that is inclined upward, and a plurality of first locking teeth that mesh with the first gear column are arranged on the upper side of the locking seat.

[0014] The present invention is further configured such that a vertical hole is provided vertically through the middle of the movable seat, the cross section of the vertical hole is rectangular, and a drag reducing member is rotatably provided on the inner wall of the vertical hole so as to abut against the outer wall of the vertical support body;

[0015] The second positioning mechanism includes a plurality of second fixed teeth horizontally arranged on the side of the vertical support body close to the first gear column, two second support seats are provided on the side of the movable seat, and a second gear column is horizontally rotatably arranged between the two second support seats, and the second gear column is meshed with the second fixed teeth. A locking portion with a circular arc-shaped longitudinal cross-section is provided on the top of the locking seat, and a plurality of second locking teeth that can mesh with the second gear column are provided on the inner wall of the locking portion. When the first locking tooth and the first gear column are in a separated state, the second locking tooth and the second gear column are in a separated state. When the first locking tooth and the first gear column are in a meshed state, the second locking tooth and the second gear column are in a meshed state.

[0016] The present invention is further configured such that consolidation seats are horizontally provided on both sides of the bottom of the movable seat, the length direction of the consolidation seat is perpendicular to the length direction of the main support body, the upper side of the consolidation seat is movably fitted to the lower side of the main support body, a dovetail groove is vertically provided on the side of the consolidation seat, a dovetail body is vertically and movably provided in the dovetail groove, a movable plate movably fitted to the consolidation seat is vertically provided on the outer side of the dovetail body, an integral part with a C-shaped cross section is provided between the two movable plates, the fixed seat is fitted to the inner wall of the integral part, a synchronization part is vertically provided on the top of the integral part, and the top of the synchronization part is fixedly connected to the locking seat;

[0017] The outer end of the consolidation seat is provided with a consolidation hole, the outer end of the consolidation hole is provided with an anti-slip block, the upper side of the anti-slip block is an anti-slip curved surface, a third gear column is horizontally rotatably provided in the consolidation hole, and the side of the vertical support body is vertically hinged with an inclined auxiliary rack, the upper side of the auxiliary rack is engaged with the third gear column, and the lower side is in contact with the anti-slip curved surface;

[0018] A rectangular parallelepiped locking hole is horizontally opened at the inner end of the consolidation hole, a locking body that is movably matched with the locking hole is horizontally arranged in the locking hole, and a plurality of third locking teeth that can mesh with the third gear column are arranged at the end of the locking body;

[0019] A first elongated hole is horizontally opened on the side of the locking hole, and a second elongated hole is obliquely opened on the movable plate. A linkage portion is provided on the side of the locking body, and the outer wall of the linkage portion is movably fitted to the inner wall of the first elongated hole and the second elongated hole. When the first locking tooth body and the first gear column are in a separated state, the third locking tooth body and the third gear column are in a separated state. When the first locking tooth body and the first gear column are in a meshing state, the third locking tooth body and the third gear column are in a meshing state.

[0020] The present invention is further configured as follows: the vertical support body includes a first vertical portion and a second vertical portion located below the first vertical portion, the auxiliary rack is hinged to the bottom of the first vertical portion, the connecting piece is connected to the second vertical portion, the bottom of the first vertical portion is provided with a rotating groove with an Ω-shaped longitudinal cross-section, the top of the second vertical portion is provided with an extension portion, the top of the extension portion is provided with a spherical rotating ball, the rotating ball is movably fitted to the inner wall of the rotating groove, and an auxiliary cable is obliquely arranged between the side of the second vertical portion facing away from the connecting piece and the end of the main support body close to the movable support body.

[0021] The present invention is further configured such that a rotating shaft is vertically provided at the bottom of the second vertical portion, a third vertical portion is horizontally rotatably sleeved on the outer wall of the rotating shaft, the bottom of the auxiliary cable is connected to the third vertical portion, a temporary support plate is horizontally provided on the side of the third vertical portion close to the connecting piece, the steering frame includes a vertical bogie and two steering plates horizontally hinged to the top and bottom of the bogie, two steering wheels are provided, the tops and bottoms of the two steering wheels are rotatably connected to the two steering plates, and the middle part of the bogie is connected to the connecting piece.

[0022] The present invention is further configured such that the top of the auxiliary cable is fixedly connected to the main support body, two tensioning frames are horizontally provided on the side of the third vertical portion facing away from the temporary support plate, the free ends of the tensioning frames are each provided with a rotation hole, a rotating column is rotatably provided in the rotation hole, a limiting disk having a diameter larger than that of the rotating column is provided on the inner side of the rotating column, a retracting roller is provided between the two limiting disks, and the bottom of the auxiliary cable is wound around the outer wall of the retracting roller;

[0023] The inner wall of the rotating hole is provided with a plurality of one-way grooves, each of which has a triangular longitudinal section, and the length of the one-way groove is smaller than the depth of the rotating hole. A telescopic hole with a rectangular cross section is provided on the outer wall of the rotating column. A one-way body is movably arranged in the telescopic hole, and the outer wall of the one-way body is movably fitted to the inner wall of the telescopic hole. A second elastic member that is continuously in a compressed state is provided between the inner end of the one-way body and the inner end of the telescopic hole. The outer end of the one-way body is inclined. An operating handle for rotating the rotating column is provided on the side of the outer side of the rotating column. An unlocking mechanism for driving the one-way body to enter the telescopic hole is provided on the outer side of the rotating column. When the retracting roller reels up the auxiliary cable, the one-way body can enter the telescopic hole as a whole.

[0024] The present invention is further configured such that a sliding groove having a T-shaped or Ω-shaped cross-section is formed on the outer sides of the rotating column and the operating handle, and the unlocking mechanism includes a sliding body movably disposed in the sliding groove, a sliding plate is disposed on the outer side of the sliding body, and an unlocking column is disposed on the outer side of the sliding plate and is perpendicular to the sliding plate;

[0025] The outer end of the rotating column is horizontally penetrated by a connecting hole that communicates with the telescopic hole, the outer end of the one-way body is provided with an L-shaped one-way arm, and the outer side of the middle of the one-way arm is provided with a rectangular parallelepiped stabilizing block, the outer wall of the rotating column is provided with a stabilizing cylinder, the stabilizing block moves through the rotating column and fits into the inner wall of the stabilizing cylinder, there are two one-way arms, the free ends of the two one-way arms are both facing the axis of the rotating column, the outer end of the one-way arm is provided with a one-way plate, the length direction of the one-way plate is parallel to the length direction of the sliding groove, and the one-way plate is penetrated by a first groove body, a second groove body, a third groove body, a fourth groove body, a fifth groove body and a fifth groove body that are sequentially communicated The second slot body and the third slot body, the first slot body and the second slot body form a ✓ shape, the length direction of the third slot body is perpendicular to the length direction of the first slot body, the unlocking column can be movable into the first slot body or the second slot body or the third slot body, when the unlocking column is located in the first slot body, the two one-way plates can freely approach each other and then move away, when the unlocking column is located in the second slot body, the two one-way plates approach each other, when the unlocking column is located in the third slot body, the distance between the two one-way plates is at the minimum state, and the one-way body is located as a whole in the telescopic hole.

[0026] The present invention is further configured such that both ends of the bottom of the third vertical part are provided with a reinforcing plate, and the angle between the plane where the reinforcing plate is located and the horizontal plane is 0-2°, and the free end of the reinforcing plate is hingedly provided with a U-shaped hinge part, the upper and lower ends of the reinforcing plate are movably fitted with the inner wall of the hinge part. The outer end of the hinge part is provided with a first screw part, and the outer wall of the first screw part is threadedly connected with an adjusting screw barrel, and the inner wall of the free end of the adjusting screw barrel is threadedly connected with a second screw part, and the adjusting screw barrel can be rotated to make the first screw part and the second screw part move closer to or away from each other, and the free end of the second screw part is vertically provided with an adapting rod, the top and bottom of the adapting rod are horizontally rotatably provided with an adapting seat, and a reinforcing strip is vertically provided between the two adapting seats, and the outer side of the reinforcing strip is at a right angle, and the reinforcing strips are provided on both sides of the main support body, and the first support part, the second support part and the two reinforcing strips are in contact with the four corners of the working well;

[0027] The end of the movable support body is provided with a first adjusting screw and two first guide rods, the outer walls of the two first guide rods are movably fitted to the main support body, and the first adjusting screw is threadedly connected to the main support body;

[0028] The two sides of the main support body are also horizontally provided with a middle plate perpendicular to the main support body, and both ends of the middle plate are in contact with the top of the working well, and the bottom of the middle plate is provided with an extension seat, and the outer sides of both ends of the extension seat are provided with extension blocks, and the top of the extension block is attached to the bottom of the middle plate, and the outer end of the extension block is inclined and attached to the inner wall of the working well. The inner end of the extension block is provided with two second guide rods, and the outer wall of the second guide rod is movably attached to the extension seat. A second adjusting screw is horizontally rotated in the extension seat, and the two ends of the second adjusting screw are respectively threadedly connected to the two extension blocks. Rotating the second adjusting screw can make the two extension blocks approach or move away from each other. An adjusting disk is provided in the middle of the second adjusting screw, and an opening for the adjusting disk to movably pass through is provided on the extension block.

[0029] The present invention also provides a method for using a steering system for cable laying as described in any one of the above items, comprising the following steps:

[0030] S1, clean the top of the working pit and keep it flat and level;

[0031] S2, place one end of the main support body on the top of the working well, and adjust the position of the movable support body so that the end of the movable support body also fits on the top of the working well, and the first support part and the second support part abut against two opposite corners of the working well;

[0032] S3, horizontally and vertically moving the movable support body on the main support body so that the steering wheel is located in the middle of the cable steering position;

[0033] S4, fixing the position of the vertical support body by using the first positioning mechanism and the second positioning mechanism;

[0034] S5, pull one end of the cable out from the drainage pipe on one side of the working pit, pass it around the steering wheel, and enter the drainage pipe on the other side of the working pit.

[0035] Compared with the prior art, the present invention provides a steering system for cable laying and a method of using the same. When steering the cable, it is first necessary to clean the top of the working well at the steering point and keep the top of the working well flat and at the same height; then one end of the main support body is fitted on the top of the working well, and the position of the movable support body is adjusted so that the end of the movable support body is also fitted on the top of the working well, while the first support part and the second support part are in contact with the two opposite corners of the working well; then the position of the movable support body is moved horizontally and vertically on the main support body so that the steering wheel is in the middle position of the cable steering point; the position of the vertical support body is fixed by the first positioning mechanism and the second positioning mechanism; one end of the cable is pulled out from the drainage pipe on one side of the working well, bypasses the steering wheel, and enters the drainage pipe on the other side of the working well. The pulling force of the cable on the steering wheel is mainly directed toward the first support part. At this time, since the first support part is in contact with the inner corner of the working well, the position stability of the main support body can be well maintained. According to actual conditions, rubber pads can be installed on the outer walls of the first support part and the second support part (and the reinforcement strip) to increase resistance. Since the inner wall of the working well is usually not smooth, the rubber pads can be better prevented from sliding relative to the working well after being squeezed and deformed.

[0036] The height and position of the cables in a working shaft may need to be adjusted. In this case, by simply disengaging the first and second positioning mechanisms, the vertical supports can be moved along the length of the main support and in the vertical direction. This allows the position of the steering frame and steering wheel to be adjusted to accommodate pipe holes of different heights and different cable pulling requirements. The corner of the working shaft where the first support contacts is at the corner of two pipes, so the bottom of the main support is the center of all cable turning points.

[0037] During cable pulling, if the steering wheel is at a low height, the first support portion tends to move upward. Since the first support portion has a certain length, this effectively prevents the first support portion from falling out of the working well. Furthermore, the cable pulling direction is not completely fixed, but rather subject to some tilting forces. At this time, since both sides of the first and second support portions are also limited by the inner wall of the working well, the angle of the main support portion remains stable. Furthermore, the first and second anti-rotation portions also abut against the top of the working well, further enhancing the angular stability and operational stability of the main support portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the structure of the present invention when in use;

[0039] Figure 2 yes Figure 1 Enlarged view of part A;

[0040] Figure 3 yes Figure 1 Enlarged view of part B;

[0041] Figure 4 yes Figure 1 Enlarged view of part C;

[0042] Figure 5 yes Figure 1 Enlarged view of part D in the middle;

[0043] Figure 6 It is a structural schematic diagram of the present invention;

[0044] Figure 7 yes Figure 6 Enlarged view of part E in the middle;

[0045] Figure 8 yes Figure 7 Enlarged view of part F;

[0046] Figure 9 yes Figure 7 Enlarged view of section G;

[0047] Figure 10 is a cross-sectional view of the present invention;

[0048] Figure 11 yes Figure 10 Enlarged view of section H;

[0049] Figure 12 yes Figure 10 Enlarged view of the middle J section;

[0050] Figure 13 It is a cross-sectional view of the movable seat portion of the present invention;

[0051] Figure 14 is a cross-sectional view of the unidirectional body portion of the present invention;

[0052] Figure 15 It is an exploded view of the movable seat portion of the present invention;

[0053] Figure 16 yes Figure 15 Enlarged view of the middle K section;

[0054] Figure 17 It is a schematic diagram of the consolidation seat portion of the present invention;

[0055] Figure 18 is a schematic diagram of the third vertical portion and the rotating column portion of the present invention;

[0056] Figure 19 It is a schematic diagram of the interior of the rotating column in the present invention;

[0057] Figure 20It is a schematic diagram of the one-way body and the sliding plate part in the present invention.

[0058] Among them, 1, main support body; 2, first support part; 3, first anti-rotation part; 4, movable support body; 5, second support part; 6, second anti-rotation part; 7, vertical support body; 7a, first vertical part; 7b, second vertical part; 7c, third vertical part; 8, steering frame; 8a, bogie; 8b, steering plate; 9, steering wheel; 10, connecting piece; 11, first movable groove; 12, second movable groove; 13, first fixed tooth body; 14, movable seat; 15, first support seat; 16, first gear column; 17, Fixed seat; 18, locking seat; 19, first elastic member; 20, first locking tooth; 21, vertical hole; 22, second fixed tooth; 23, second supporting seat; 24, second gear column; 25, locking portion; 26, second locking tooth; 27, consolidation seat; 28, dovetail body; 29, movable plate; 30, integrated portion; 31, synchronization portion; 32, consolidation hole; 33, anti-slip block; 34, anti-slip curved surface; 35, third gear column; 36, auxiliary rack; 37, locking hole; 38, locking body; 39. Third locking tooth; 40. First elongated hole; 41. Second elongated hole; 42. Linkage portion; 43. Extension portion; 44. Rotating ball; 45. Auxiliary cable; 46. Rotating shaft; 47. Temporary support plate; 48. Tensioning frame; 49. Rotating hole; 50. Rotating column; 51. Limiting plate; 52. Retractable roller; 53. One-way groove; 54. Telescopic hole; 55. One-way body; 56. Second elastic member; 57. Operating handle; 58. Sliding groove; 59. Sliding body; 60. Sliding plate; 61. Unlocking column ;62. Connecting hole;63. One-way arm;64. Stabilizing block;65. Stabilizing cylinder;66. One-way plate;67. First trough body;68. Second trough body;69. Third trough body;70. Reinforcement plate;71. Hinge;72. First screw portion;73. Adjusting screw cylinder;74. Second screw portion;75. Adaptation rod;76. Adaptation seat;77. Reinforcement strip;78. First adjusting screw;79. First guide rod;80. Middle plate;81. Extension seat;82. Extension block;83. Second guide rod. DETAILED DESCRIPTION

[0059] The following is a detailed description of a cable laying steering system and its method of use, as provided by the present invention, with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are greatly simplified and not to exact scale, and are provided solely for the purpose of conveniently and clearly illustrating the embodiments of the present invention. Identical or similar reference numerals in the drawings represent identical or similar components.

[0060] A steering system for cable laying, such as Figures 1 to 20 Shown, including:

[0061] A horizontal main support body 1, a first support portion 2 being vertically provided at the bottom of the main support body 1, and a first anti-rotation portion 3 being horizontally provided at the top of the main support body 1 and perpendicular to the main support body 1;

[0062] A movable support body 4, the movable support body 4 is movably connected to one end of the main support body 1, a second support portion 5 is vertically provided at the bottom of the movable support body 4, and second anti-rotation portions 6 parallel to the first anti-rotation portion 3 are provided on both sides of the movable support body 4, one end of the main support body 1, one end of the movable support body 4, the first anti-rotation portion 3 and the second anti-rotation portion 6 all abut against the top of a working well (which is not the object of protection claimed in this application and is only introduced here for auxiliary explanation), and the first support portion 2 and the second support portion 5 respectively abut against two opposite corners of the working well;

[0063] A vertical support body 7, the vertical support body 7 is vertically movably connected to the main support body 1, and the main support body 1 is provided with a first positioning mechanism for fixing the horizontal position of the vertical support body 7 and a second positioning mechanism for fixing the vertical position of the vertical support body 7;

[0064] A steering frame 8, on which a steering wheel 9 is vertically rotatably provided;

[0065] The steering frame 8 and the vertical support body 7 are movably connected via the connecting piece 10 .

[0066] A first movable groove 11 is vertically formed through the main support body 1. Second movable grooves 12 are horizontally formed on both sides of the first movable groove 11. Both ends of the first movable groove 11 and the second movable groove 12 are spaced apart from both ends of the main support body 1. A plurality of first fixed teeth 13 are formed on the top of the second movable groove 12.

[0067] The first positioning mechanism includes a movable seat 14, the vertical support body 7 is vertically movably connected to the movable seat 14, and the vertical support body 7 vertically passes through the first movable groove 11, the longitudinal section of the movable seat 14 is cross-shaped, and both sides of the top and bottom of the movable seat 14 are movably fitted to the inner wall of the first movable groove 11, and the bottom of the middle part of the movable seat 14 is rotatably provided with a drag reducing member (preferably a ball or roller) that movably abuts against the bottom of the second movable groove 12, and two first support seats 15 are provided on the side of the movable seat 14 away from the first support portion 2, and a first gear column 16 is horizontally rotatably provided between the two first support seats 15, and the top of the first gear column 16 is meshed with the first fixed tooth body 13, and the steering frame 8 and the first gear column 16 are located on both sides of the vertical support body 7;

[0068] A fixed seat 17 is horizontally provided at the bottom of the movable seat 14, and a locking seat 18 is vertically and movably connected to the outer side of the movable seat 14 (a dovetail strip is provided on the inner side of the locking seat 18, and a dovetail groove is provided on the movable seat 14). A first elastic member 19 that is continuously in a compressed state is vertically provided between the bottom of the locking seat 18 and the top of the fixed seat 17. The upper side of the locking seat 18 is in an arc shape that is inclined upward, and a plurality of first locking teeth 20 that mesh with the first gear column 16 are provided on the upper side of the locking seat 18.

[0069] A vertical hole 21 is formed vertically through the middle of the movable seat 14. The cross section of the vertical hole 21 is rectangular. A drag reducing member is rotatably provided on the inner wall of the vertical hole 21 to abut against the outer wall of the vertical support body 7.

[0070] The second positioning mechanism includes a plurality of second fixed teeth 22 horizontally arranged on the side of the vertical support body 7 close to the first gear column 16, two second support seats 23 are provided on the side of the movable seat 14, and a second gear column 24 is horizontally rotatably arranged between the two second support seats 23, and the second gear column 24 is engaged with the second fixed tooth 22. The top of the locking seat 18 is provided with a locking portion 25 with a circular arc longitudinal cross-section, and the inner wall of the locking portion 25 is provided with a plurality of second locking teeth 26 that can engage with the second gear column 24. When the first locking tooth 20 and the first gear column 16 are in a separated state, the second locking tooth 26 and the second gear column 24 are in a separated state. When the first locking tooth 20 and the first gear column 16 are in an engaged state, the second locking tooth 26 and the second gear column 24 are in an engaged state.

[0071] A consolidation seat 27 is horizontally provided on both sides of the bottom of the movable seat 14, and the length direction of the consolidation seat 27 is perpendicular to the length direction of the main support body 1. The upper side of the consolidation seat 27 is movably fitted to the lower side of the main support body 1, and a dovetail groove is provided vertically through the side of the consolidation seat 27. A dovetail body 28 is vertically and movably provided in the dovetail groove. A movable plate 29 that is movably fitted to the consolidation seat 27 is vertically provided on the outer side of the dovetail body 28. An integral part 30 with a C-shaped cross section is provided between the two movable plates 29. The fixed seat 17 is fitted to the inner wall of the integral part 30. A synchronization part 31 is vertically provided on the top of the integral part 30. The top of the synchronization part 31 is fixedly connected to the locking seat 18;

[0072] A consolidation hole 32 is formed at the outer end of the consolidation seat 27, and an anti-slip block 33 is provided at the outer end of the consolidation hole 32. The upper side of the anti-slip block 33 is an anti-slip curved surface 34. A third gear column 35 is horizontally rotatably provided in the consolidation hole 32. An auxiliary rack 36 in an inclined shape is vertically hingedly provided on the side of the vertical support body 7. The upper side of the auxiliary rack 36 is engaged with the third gear column 35, and the lower side contacts the anti-slip curved surface 34.

[0073] A rectangular parallelepiped locking hole 37 is horizontally formed at the inner end of the consolidating hole 32. A locking body 38 is horizontally disposed in the locking hole 37 and is movably engaged with the locking hole 37. A plurality of third locking teeth 39 are disposed at the end of the locking body 38 and are engaged with the third gear column 35.

[0074] A first elongated hole 40 is horizontally opened on the side of the locking hole 37, and a second elongated hole 41 is obliquely opened on the movable plate 29. A linkage portion 42 is provided on the side of the locking body 38, and the outer wall of the linkage portion 42 is movably fitted to the inner walls of the first elongated hole 40 and the second elongated hole 41. When the first locking tooth body 20 and the first gear column 16 are in a separated state, the third locking tooth body 39 and the third gear column 35 are in a separated state. When the first locking tooth body 20 and the first gear column 16 are in an engaged state, the third locking tooth body 39 and the third gear column 35 are in an engaged state.

[0075] The vertical support body 7 includes a first vertical portion 7a and a second vertical portion 7b located below the first vertical portion 7a. The auxiliary rack 36 is hinged to the bottom of the first vertical portion 7a. The connecting member 10 is connected to the second vertical portion 7b. The bottom of the first vertical portion 7a is provided with a rotating groove with an Ω-shaped longitudinal section. The top of the second vertical portion 7b is provided with an extension portion 43. The top of the extension portion 43 is provided with a spherical rotating ball 44. The rotating ball 44 is movably fitted to the inner wall of the rotating groove. An auxiliary cable 45 is obliquely arranged between the side of the second vertical portion 7b facing away from the connecting member 10 and the end of the main support body 1 close to the movable support body 4.

[0076] A rotating shaft 46 is vertically provided at the bottom of the second vertical portion 7b, and a third vertical portion 7c is horizontally rotatably sleeved on the outer wall of the rotating shaft 46. The bottom of the auxiliary cable 45 is connected to the third vertical portion 7c, and a temporary support plate 47 is horizontally provided on the side of the third vertical portion 7c close to the connecting member 10. The steering frame 8 includes a vertical bogie 8a and two steering plates 8b horizontally hinged to the top and bottom of the bogie 8a. There are two steering wheels 9. The tops and bottoms of the two steering wheels 9 are rotatably connected to the two steering plates 8b, and the middle part of the bogie 8a is connected to the connecting member 10.

[0077] The top of the auxiliary cable 45 is fixedly connected to the main support body 1. Two tensioning frames 48 are horizontally provided on the side of the third vertical portion 7c facing away from the temporary support plate 47. The free ends of the tensioning frames 48 are each provided with a rotating hole 49. A rotating column 50 is rotatably provided in the rotating hole 49. A limiting plate 51 having a diameter larger than that of the rotating column 50 is provided on the inner side of the rotating column 50. A retracting roller 52 is provided between the two limiting plates 51. The bottom of the auxiliary cable 45 is wound around the outer wall of the retracting roller 52.

[0078] The inner wall of the rotating hole 49 is provided with a plurality of one-way grooves 53, each of which has a triangular longitudinal section. The length of the one-way grooves 53 is less than the depth of the rotating hole 49. The outer wall of the rotating column 50 is provided with a telescopic hole 54 with a rectangular cross section. A one-way body 55 is movably arranged in the telescopic hole 54. The outer wall of the one-way body 55 is movably fitted to the inner wall of the telescopic hole 54. A second elastic member 56 that is continuously in a compressed state is provided between the inner end of the one-way body 55 and the inner end of the telescopic hole 54. The outer end of the one-way body 55 is inclined. An operating handle 57 for rotating the rotating column 50 is provided on the side of the outside of the rotating column 50. An unlocking mechanism for driving the one-way body 55 to enter the telescopic hole 54 is provided on the outside of the rotating column 50. When the retracting roller 52 reels the auxiliary cable 45, the one-way body 55 can enter the telescopic hole 54 as a whole.

[0079] A sliding groove 58 with a T-shaped or Ω-shaped cross section is formed on the outer side of the rotating column 50 and the operating handle 57. The unlocking mechanism includes a sliding body 59 movably disposed in the sliding groove 58. A sliding plate 60 is disposed on the outer side of the sliding body 59. An unlocking column 61 is disposed on the outer side of the sliding plate 60 and is perpendicular to the sliding plate 60.

[0080] A connecting hole 62 is provided at the outer end of the rotating column 50 which is horizontally passed through and communicates with the telescopic hole 54. An L-shaped one-way arm 63 is provided at the outer end of the one-way body 55. A rectangular stabilizing block 64 is provided on the outer side of the middle part of the one-way arm 63. A stabilizing cylinder 65 is provided on the outer wall of the rotating column 50. The stabilizing block 64 moves through the rotating column 50 and fits against the inner wall of the stabilizing cylinder 65. Two one-way arms 63 are provided, and the free ends of the two one-way arms 63 are both facing the axis of the rotating column 50. A one-way plate 66 is provided at the outer end of the one-way arm 63. The length direction of the one-way plate 66 is parallel to the length direction of the sliding groove 58. A first groove body 67, The second slot body 68 and the third slot body 69, the first slot body 67 and the second slot body 68 form a ✓ shape, the length direction of the third slot body 69 is perpendicular to the length direction of the first slot body 67, the unlocking column 61 can move into the first slot body 67 or the second slot body 68 or the third slot body 69, when the unlocking column 61 is located in the first slot body 67, the two one-way plates 66 can freely approach each other and then move away, when the unlocking column 61 is located in the second slot body 68, the two one-way plates 66 approach each other, when the unlocking column 61 is located in the third slot body 69, the distance between the two one-way plates 66 is at the minimum state, and the one-way body 55 is located as a whole in the telescopic hole 54.

[0081] Both ends of the bottom of the third vertical portion 7c are provided with a reinforcement plate 70, and the angle between the plane where the reinforcement plate 70 is located and the horizontal plane is 0-2 degrees. The free end of the reinforcement plate 70 is hingedly provided with a U-shaped hinge 71. The upper and lower sides of the reinforcement plate 70 are movably fitted to the inner wall of the hinge 71. The outer end of the hinge 71 is provided with a first screw portion 72, and the outer wall of the first screw portion 72 is threadedly connected to an adjusting screw barrel 73. The inner wall of the free end of the adjusting screw barrel 73 is threadedly connected to a second screw portion 74. Rotating the adjusting screw 73 can make the first screw portion 72 and the second screw portion 74 move closer to or away from each other. An adaption rod 75 is vertically provided at the free end of the second screw portion 74. The top and bottom of the adaption rod 75 are both horizontally rotatably provided with adaption seats 76. A reinforcement strip 77 is vertically provided between the two adaption seats 76. The outer side of the reinforcement strip 77 is at a right angle. The reinforcement strip 77 is provided on both sides of the main support body 1. The first support portion 2, the second support portion 5 and the two reinforcement strips 77 are in contact with the four corners of the working well.

[0082] The end of the movable support body 4 is provided with a first adjusting screw 78 and two first guide rods 79. The outer walls of the two first guide rods 79 are movably fitted to the main support body 1. The first adjusting screw 78 is threadedly connected to the main support body 1.

[0083] The two sides of the main support body 1 are also horizontally provided with a middle plate 80 perpendicular to the main support body 1, and both ends of the middle plate 80 are in contact with the top of the working well, and the bottom of the middle plate 80 is provided with an extension seat 81, and the outer sides of the two ends of the extension seat 81 are provided with extension blocks 82, and the top of the extension block 82 is in contact with the bottom of the middle plate 80, and the outer end of the extension block 82 is inclined and in contact with the inner wall of the working well, and the inner end of the extension block 82 is provided with two second guide rods 83, and the outer wall of the second guide rod 83 is movably in contact with the extension seat 81, and a second adjusting screw is horizontally rotatably provided in the extension seat 81, and the two ends of the second adjusting screw are respectively threadedly connected to the two extension blocks 82. Rotating the second adjusting screw can make the two extension blocks 82 approach or move away from each other, and an adjusting disk is provided in the middle of the second adjusting screw, and an opening for the adjusting disk to movably pass through is opened on the extension block 82.

[0084] The present invention also provides a method for using a steering system for cable laying as described in any one of the above items, comprising the following steps:

[0085] S1, clean the top of the working pit and keep it flat and level;

[0086] S2, place one end of the main support 1 on the top of the working well, and adjust the position of the movable support 4 so that the end of the movable support 4 also fits on the top of the working well, while the first support 2 and the second support 5 contact the two opposite corners of the working well;

[0087] S3, horizontally and vertically move the movable support 4 on the main support 1 so that the steering wheel 9 is in the middle of the cable turning point;

[0088] S4, fixing the position of the vertical support body 7 by the first positioning mechanism and the second positioning mechanism;

[0089] S5, one end of the cable is pulled out from the drainage pipe on one side of the working pit, passes around the steering wheel 9, and enters the drainage pipe on the other side of the working pit.

[0090] The present invention provides a steering system for cable laying. When steering the cable, it is first necessary to clean the top of the working well at the steering point and keep the top of the working well flat and at the same height; then one end of the main support body 1 is fitted on the top of the working well, and the position of the movable support body 4 is adjusted so that the end of the movable support body 4 is also fitted on the top of the working well, while the first support part 2 and the second support part 5 are in contact with the two opposite corners of the working well; then the position of the movable support body 4 is moved horizontally and vertically on the main support body 1 so that the steering wheel 9 is in the middle position of the cable steering point; the position of the vertical support body 7 is fixed by the first positioning mechanism and the second positioning mechanism; one end of the cable is pulled out from the drainage pipe on one side of the working well, bypasses the steering wheel 9, and enters the drainage pipe on the other side of the working well. The pulling force of the cable on the steering wheel 9 is mainly directed toward the first support part 2. At this time, since the first support part 2 is in contact with the inner corner of the working well, the position stability of the main support body 1 can be well maintained; according to actual conditions, rubber pads can be installed on the outer walls of the first support part 2 and the second support part 5 (and the reinforcement strip 77) to increase resistance; and since the inner wall of the working well is usually not smooth, the rubber pads can be better prevented from sliding relative to the working well after being squeezed and deformed.

[0091] The height and position of the cables in a working shaft may need to be adjusted. In this case, by simply disengaging the first and second positioning mechanisms, the vertical support 7 can be moved along the length direction of the main support 1, and along the vertical direction. This allows the position of the steering frame 8 and the steering wheel 9 to be adjusted to accommodate pipe holes of different heights and the pulling of different cables. The corner of the working shaft where the first support 2 contacts is at the corner of two pipes, so the bottom of the main support 1 is the middle position where all cables turn.

[0092] During cable pulling, if the steering wheel 9 is at a low height, the first support 2 tends to move upward. Since the first support 2 has a certain length, this effectively prevents the first support 2 from falling out of the working well. Furthermore, the cable pulling direction is not completely fixed, but rather subject to some tilting forces. At this time, since both sides of the first support 2 and the second support 5 are also limited by the inner wall of the working well, the angle of the main support 1 is also stable. Furthermore, the first anti-rotation portion 3 and the second anti-rotation portion 6 also contact the top of the working well, further improving the angular stability and operational stability of the main support 1.

[0093] During actual use, the ends of the main support body 1 and the first anti-rotation portion 3 are placed against the top of the working well, and the first support portion 2 is placed against the corner of the working well. At this time, the middle plate 80 also contacts the top of the working well. Then, the first adjustment screw 78 is rotated to move the movable support body 4 away from the main support body 1 until the second support portion 5 is pressed against the corner of the working well. At this time, the main support body 1 and the movable support body 4 are fixedly connected to the working well. Then, the adjustment disk is rotated and the second adjustment screw is driven to rotate, so that the two extension blocks 82 are moved outward until the ends of the extension blocks 82 are pressed against the inner wall of the working well. At this time, the middle plate 80 and the extension blocks 82 can further increase the positional stability and structural strength of the main support body 1.

[0094] The lower pressure plate on the outside of the integral portion 30 is then pressed downward, compressing the first elastic member 19. After the pressure reaches a certain distance, the first locking teeth 20 separate from the first gear post 16, the second locking teeth 26 separate from the second gear post 24, and the second elongated hole 41 drives the linkage portion 42 toward the main support body 1, causing the third locking teeth 39 to separate from the third gear post 35. This allows the first vertical portion 7a to be moved directly along the length of the main support body 1. During this movement, the first gear post 16 engages with the first fixed teeth 13, causing the first gear post 16 to rotate. After the steering wheel 9 reaches the desired horizontal position, the first vertical portion 7a is moved vertically, and the second fixed teeth 22 drive the second gear post 24 to rotate. The vertical movement of the first vertical portion 7a also drives the auxiliary rack 36 to move. During this movement, the upper side of the auxiliary rack 36 continuously engages with the third gear post 35, while the lower side continuously contacts the anti-slip curved surface 34 (a special curved surface, not a circular arc). When the steering wheel 9 reaches the proper position, the integral portion 30 is released. The locking seat 18 then moves upward under the elastic force of the first elastic member 19, and finally the first locking tooth 20 meshes with the first gear column 16, the second locking tooth 26 meshes with the second gear column 24, and the second elongated hole 41 drives the linkage portion 42 and the locking body 38 to move outward until the third locking tooth 39 meshes with the third gear column 35. This completes the horizontal and vertical fixation of the vertical support 7 and assists the rack 36 in supporting and strengthening the bottom of the first vertical portion 7a. The position of the steering wheel 9 does not require extreme precision, and therefore each adjustment does not necessarily require precise positioning. If the locking tooth and the corresponding gear column are not meshed at a certain position, the position can be fine-tuned to achieve meshing, and the cable can then be properly diverted.

[0095] The worker then uses one hand to maintain the angle of the reinforcement strip 77 (to prevent it from rotating) and the other hand to turn the handle on the adjusting screw 73, so that the reinforcement strip 77 moves in a direction away from the reinforcement plate 70, until both reinforcement strips 77 contact the other two corners of the working well. Since the position of the cable is not fixed, the hinge 71 and the reinforcement plate 70 are hinged, and since the distance between the reinforcement strip 77 and the reinforcement plate 70 is also adjustable, even if the cable is turned in different positions, the reinforcement strip 77 can still contact the corners of the working well normally. The reinforcement plate 70 can be horizontal or slightly tilted upward, so that even if the cable applies an upward component of force to the steering wheel 9, the reinforcement strip 77 can effectively prevent sliding, further ensuring the steering stability of the cable. At the same time, when the steering wheel 9 is subjected to the force of the cable, if there is a force that is not in the length direction of the main support body 1, the force can be better transmitted to the working well through the first screw part 72, the adjusting screw barrel 73 and the second screw part 74. And since the reinforcement plate 70 is located at the bottom of the first vertical part 7a, the first screw part 72 and the second screw part 74 can greatly improve the position stability and strength of the first vertical part 7a, thereby ensuring the service life of the corresponding structure.

[0096] The worker then manually rotates the operating handle 57. The unlocking post 61 is now located within the first slot 67. Therefore, the unlocking post 61 does not affect the free movement of the two one-way plates 66. Furthermore, in the direction of reeling the auxiliary cable 45, the inclined inner wall of the one-way slot 53 acts on the inclined surface of the free end of the one-way body 55, driving the one-way body 55 into the telescopic hole 54. In other words, the one-way body 55 does not affect the normal reeling of the auxiliary cable 45 until the auxiliary cable 45 is appropriately tensioned. Subsequently, when the third vertical portion 7c is subjected to cable tension, the vertical surface of the one-way body 55 interferes with the vertical or perpendicular surface of the one-way slot 53, preventing relative rotation between the rotating post 50 and the tensioning frame 48. In other words, the auxiliary cable 45 will not be released from the reeling roller 52. This allows the auxiliary cable 45 to withstand the cable tension and protects the vertical support 7. To release the auxiliary cable 45 from the retractable roller 52, simply move the sliding plate 60 and allow the unlocking post 61 to pass through the second slot 68 and into the third slot 69. The one-way body 55 then fully enters the telescopic hole 54, allowing the retractable roller 52 to release the auxiliary cable 45 normally. This makes the operation simple and convenient. During the raising and lowering process, the one-way body 55 and the one-way arm 63 are raised and lowered by the elongated stabilizing block 64 on the outside of the one-way arm 63, which fits against the inner wall of the stabilizing cylinder 65. This allows the one-way body 55 to move stably and maintain sufficient relative positional stability with the one-way arm 63 and the one-way plate 66.

[0097] The force applied by the cable to the steering wheel 9 is directly transmitted to the second vertical part 7b through the connecting member 10, and the second vertical part 7b and the first vertical part 7a are connected by a rotating ball 44 and other structures to form a universal joint, rather than a hard connection; at the same time, the force applied by the cable not only changes in size but also in direction. Therefore, when the first vertical part 7a and the second vertical part 7b are movably connected, the first vertical part 7a can be well prevented from being subjected to excessive force, but mainly bears the upward force of the second vertical part 7b, so that the first vertical part 7a and the various structures at the movable seat 14 can be well prevented from being damaged, thereby ensuring the overall service life.

[0098] The auxiliary cable 45 is connected to the third vertical portion 7c, and the reinforcement plate 70 is connected to the bottom of the first vertical portion 7a. This allows the tension on the second vertical portion 7b to be primarily borne and transmitted via the auxiliary cable 45. The reinforcement plate 70, among other things, can then directly transfer the lateral forces of the first vertical portion 7a to the working well, thus ensuring the service life of the first vertical portion 7a. Furthermore, the auxiliary rack 36 can also transfer the forces at the bottom of the first vertical portion 7a upward to the consolidation seat 27. Since the consolidation seat 27 is of a certain length, this also provides lateral protection for the first vertical portion 7a and the movable seat 14.

[0099] The third vertical portion 7c and the rotating shaft 46 are relatively rotatable. Thus, when the steering wheel 9 is subjected to a horizontal force, the second vertical portion 7b, the third vertical portion 7c, and the first vertical portion 7a can all rotate, providing the cable with a certain amount of wiggle room and space to prevent excessive stress and concentrated stress. Simultaneously, the force exerted by the cable causes the first gear column 16 to rotate, and this tendency causes the locking seat 18 to move upward. That is, during the cable pulling process, both the first elastic member 19 and the first gear column 16 exert upward force on the locking seat 18. This ensures both the horizontal and vertical positions of the vertical support 7, and also the position of the auxiliary rack 36.

[0100] When the cable is first passed through, the lower deflection plate 8b can abut against the temporary support plate 47, facilitating the cable passing operation. The connecting member 10 can be a deformable structure such as a chain or a steel cable, which not only allows the position of the deflection frame 8 to be changed, but also prevents stress concentration.

[0101] It should also be noted that all references to "disposed" and similar descriptors in this application (especially in this specification) express that two structures have or exist in a connection relationship. However, the specific means by which the two structures are connected are not particularly limited, and are generally conventional connection means. In other words, such means should be understood as existing in the art and do not require further elaboration. For example, "n is disposed on m" simply expresses that structure n is present on structure m, while the two are specifically connected by welding, riveting, adhesive bonding, or integral molding, all of which are within the scope of protection of this application. Another example is "y is rotatably disposed on x" simply expresses that y and x are rotatable relative to each other, while whether the two are connected by a bearing, y directly passes through x and is rotatably connected to x, or other feasible methods are all within the scope of protection of this application.

[0102] The above description is only a description of the preferred embodiments of the present invention and does not limit the scope of the present invention. Any changes and modifications made by ordinary technicians in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A steering system for cable laying, characterized in that: include: A main support body (1) is horizontal, a first support portion (2) is vertically provided at the bottom of the main support body (1), and a first anti-rotation portion (3) is horizontally provided at the top of the main support body (1) and is perpendicular to the main support body (1); A movable support body (4), wherein the movable support body (4) is movably connected to one end of the main support body (1), a second support portion (5) is vertically provided at the bottom of the movable support body (4), and second anti-rotation portions (6) parallel to the first anti-rotation portion (3) are provided on both sides of the movable support body (4), one end of the main support body (1), one end of the movable support body (4), the first anti-rotation portion (3) and the second anti-rotation portion (6) all abut against the top of a working well, and the first support portion (2) and the second support portion (5) respectively abut against two opposite corners of the working well; A vertical support body (7), the vertical support body (7) is vertically movably connected to the main support body (1), and the main support body (1) is provided with a first positioning mechanism for fixing the horizontal position of the vertical support body (7) and a second positioning mechanism for fixing the vertical position of the vertical support body (7); A steering frame (8), wherein a steering wheel (9) is vertically rotatably provided on the steering frame (8); A connecting member (10) is provided, wherein the steering frame (8) and the vertical support body (7) are movably connected via the connecting member (10).

2. A cable laying steering system according to claim 1, characterized in that: A first movable groove (11) is vertically provided through the main support body (1), and second movable grooves (12) are horizontally provided on both sides of the first movable groove (11), and both ends of the first movable groove (11) and the second movable groove (12) are spaced apart from both ends of the main support body (1), and a plurality of first fixed teeth (13) are provided on the top of the second movable groove (12); The first positioning mechanism includes a movable seat (14), the vertical support body (7) is vertically movably connected to the movable seat (14), and the vertical support body (7) vertically passes through the first movable groove (11), the longitudinal section of the movable seat (14) is cross-shaped, both sides of the top and bottom of the movable seat (14) are movably fitted to the inner wall of the first movable groove (11), the bottom of the middle part of the movable seat (14) is rotatably provided with a resistance reducing member that movably contacts the bottom of the second movable groove (12), the movable seat (14) is provided with two first support seats (15) on the side away from the first support part (2), and a first gear column (16) is horizontally rotatably provided between the two first support seats (15), the top of the first gear column (16) is meshed with the first fixed tooth body (13), and the steering frame (8) and the first gear column (16) are located on both sides of the vertical support body (7); A fixed seat (17) is horizontally arranged at the bottom of the movable seat (14), a locking seat (18) is vertically and movably connected to the outer side of the movable seat (14), a first elastic member (19) which is continuously in a compressed state is vertically arranged between the bottom of the locking seat (18) and the top of the fixed seat (17), the upper side of the locking seat (18) is in an arc shape inclined upward, and a plurality of first locking teeth (20) engaged with the first gear column (16) are arranged on the upper side of the locking seat (18).

3. A steering system for cable laying according to claim 2, characterized in that: A vertical hole (21) is provided in the middle of the movable seat (14) vertically, the cross section of the vertical hole (21) is rectangular, and a resistance reducing member is rotatably provided on the inner wall of the vertical hole (21) and contacts the outer wall of the vertical support body (7); The second positioning mechanism includes a plurality of second fixed teeth (22) horizontally arranged on one side of the vertical support body (7) close to the first gear column (16); two second support seats (23) are arranged on the side of the movable seat (14); a second gear column (24) is arranged horizontally and rotatably between the two second support seats (23); the second gear column (24) is meshed with the second fixed teeth (22); a locking portion (25) with a circular arc longitudinal section is provided on the top of the locking seat (18); a plurality of second locking teeth (26) that can mesh with the second gear column (24) are provided on the inner wall of the locking portion (25); when the first locking tooth (20) and the first gear column (16) are in a separated state, the second locking tooth (26) and the second gear column (24) are in a separated state; when the first locking tooth (20) and the first gear column (16) are in a meshed state, the second locking tooth (26) and the second gear column (24) are in a meshed state.

4. A cable laying steering system according to claim 3, characterized in that: A consolidation seat (27) is horizontally provided on both sides of the bottom of the movable seat (14), and the length direction of the consolidation seat (27) is perpendicular to the length direction of the main support body (1). The upper side of the consolidation seat (27) is movably attached to the lower side of the main support body (1), and a dovetail groove is provided vertically through the side of the consolidation seat (27). A dovetail body (28) is vertically movably provided in the dovetail groove, and a movable plate (29) that is movably attached to the consolidation seat (27) is vertically provided on the outer side of the dovetail body (28). An integral part (30) with a C-shaped cross section is provided between the two movable plates (29), and the fixed seat (17) is attached to the inner wall of the integral part (30). A synchronization part (31) is vertically provided on the top of the integral part (30), and the top of the synchronization part (31) is fixedly connected to the locking seat (18); The outer end of the consolidation seat (27) is provided with a consolidation hole (32), the outer end of the consolidation hole (32) is provided with an anti-slip block (33), the upper side of the anti-slip block (33) is an anti-slip curved surface (34), a third gear column (35) is horizontally rotatably provided in the consolidation hole (32), and the side of the vertical support body (7) is vertically hinged with an inclined auxiliary rack (36), the upper side of the auxiliary rack (36) is meshed with the third gear column (35), and the lower side is in contact with the anti-slip curved surface (34); A rectangular parallelepiped locking hole (37) is horizontally provided at the inner end of the consolidating hole (32), a locking body (38) that is movably matched with the locking hole (37) is horizontally provided in the locking hole (37), and a plurality of third locking teeth (39) that can mesh with the third gear column (35) are provided at the end of the locking body (38); The side of the locking hole (37) is also horizontally provided with a first long strip hole (40), and the movable plate (29) is obliquely provided with a second long strip hole (41). The side of the locking body (38) is provided with a linkage part (42), and the outer wall of the linkage part (42) is movably fitted to the inner wall of the first long strip hole (40) and the second long strip hole (41). When the first locking tooth body (20) and the first gear column (16) are in a separated state, the third locking tooth body (39) and the third gear column (35) are in a separated state. When the first locking tooth body (20) and the first gear column (16) are in a meshing state, the third locking tooth body (39) and the third gear column (35) are in a meshing state.

5. A steering system for cable laying according to claim 4, characterized in that: The vertical support body (7) includes a first vertical portion (7a) and a second vertical portion (7b) located below the first vertical portion (7a), the auxiliary rack (36) is hinged to the bottom of the first vertical portion (7a), the connecting member (10) is connected to the second vertical portion (7b), the bottom of the first vertical portion (7a) is provided with a rotating groove with an Ω-shaped longitudinal section, the top of the second vertical portion (7b) is provided with an extension portion (43), the top of the extension portion (43) is provided with a spherical rotating ball (44), the rotating ball (44) is movably fitted to the inner wall of the rotating groove, and an auxiliary cable (45) is obliquely provided between the side of the second vertical portion (7b) away from the connecting member (10) and the end of the main support body (1) close to the movable support body (4).

6. A steering system for cable laying according to claim 5, characterized in that: A rotating shaft (46) is vertically provided at the bottom of the second vertical portion (7b), a third vertical portion (7c) is horizontally rotatably sleeved on the outer wall of the rotating shaft (46), the bottom of the auxiliary cable (45) is connected to the third vertical portion (7c), a temporary support plate (47) is horizontally provided on the side of the third vertical portion (7c) close to the connecting member (10), the steering frame (8) comprises a vertical bogie (8a) and two steering plates (8b) horizontally hinged to the top and bottom of the bogie (8a), two steering wheels (9) are provided, the tops and bottoms of the two steering wheels (9) are both rotatably connected to the two steering plates (8b), and the middle part of the bogie (8a) is connected to the connecting member (10).

7. A steering system for cable laying according to claim 6, characterized in that: The top of the auxiliary cable (45) is fixedly connected to the main support body (1); two tensioning frames (48) are horizontally arranged on the side of the third vertical portion (7c) away from the temporary support plate (47); the free ends of the tensioning frames (48) are each provided with a rotating hole (49); a rotating column (50) is rotatably arranged in the rotating hole (49); a limiting plate (51) having a diameter larger than that of the rotating column (50) is arranged on the inner side of the rotating column (50); a retracting roller (52) is arranged between the two limiting plates (51); and the bottom of the auxiliary cable (45) is wound around the outer wall of the retracting roller (52); The inner wall of the rotating hole (49) is provided with a plurality of one-way grooves (53) with triangular longitudinal sections. The length of the one-way grooves (53) is less than the depth of the rotating hole (49). The outer wall of the rotating column (50) is provided with a telescopic hole (54) with a rectangular cross section. A one-way body (55) is movably provided in the telescopic hole (54). The outer wall of the one-way body (55) is movably fitted to the inner wall of the telescopic hole (54). The inner end of the one-way body (55) is in contact with the inner end of the telescopic hole (54). A second elastic member (56) which is continuously in a compressed state is provided between the two members, the outer end of the one-way body (55) is inclined, the side portion of the outer portion of the rotating column (50) is provided with an operating handle (57) for rotating the rotating column (50), and the outer portion of the rotating column (50) is provided with an unlocking mechanism for driving the one-way body (55) to enter the telescopic hole (54). When the retractable roller (52) rewinds the auxiliary cable (45), the one-way body (55) can enter the telescopic hole (54) as a whole.

8. A steering system for cable laying according to claim 7, characterized in that: The outer sides of the rotating column (50) and the operating handle (57) are provided with a sliding groove (58) with a T-shaped or Ω-shaped cross section. The unlocking mechanism includes a sliding body (59) movably arranged in the sliding groove (58) (there is a certain friction between the sliding body (59) and the sliding groove (58). When no external force is applied, the two remain relatively stationary, but can move when a force is applied). A sliding plate (60) is provided on the outer side of the sliding body (59). An unlocking column (61) perpendicular to the sliding plate (60) is provided on the outer side of the sliding plate (60); A connecting hole (62) communicating with the telescopic hole (54) is provided at the outer end of the rotating column (50) running horizontally therethrough; an L-shaped one-way arm (63) is provided at the outer end of the one-way body (55); a rectangular parallelepiped stabilizing block (64) is provided on the outer side of the middle part of the one-way arm (63); a stabilizing cylinder (65) is provided on the outer wall of the rotating column (50); the stabilizing block (64) moves through the rotating column (50) and fits against the inner wall of the stabilizing cylinder (65); two one-way arms (63) are provided; the free ends of the two one-way arms (63) are both oriented toward the axis of the rotating column (50); a one-way plate (66) is provided at the outer end of the one-way arm (63); the length direction of the one-way plate (66) is parallel to the length direction of the sliding groove (58); and a first groove body (67) and a plurality of groove bodies (67) communicating with each other in sequence are provided through the one-way plate (66). The second slot body (68) and the third slot body (69), the first slot body (67) and the second slot body (68) form a ✓ shape, the length direction of the third slot body (69) is perpendicular to the length direction of the first slot body (67), the unlocking column (61) can move into the first slot body (67) or the second slot body (68) or the third slot body (69), when the unlocking column (61) is located in the first slot body (67), the two one-way plates (66) can freely approach each other and then move away from each other, when the unlocking column (61) is located in the second slot body (68), the two one-way plates (66) approach each other, when the unlocking column (61) is located in the third slot body (69), the distance between the two one-way plates (66) is at a minimum state, and the one-way body (55) is entirely located in the telescopic hole (54).

9. A steering system for cable laying according to claim 6, characterized in that: Both ends of the bottom of the third vertical portion (7c) are provided with a reinforcing plate (70), the angle between the plane where the reinforcing plate (70) is located and the horizontal plane is 0-2 degrees, the free end of the reinforcing plate (70) is hingedly provided with a U-shaped hinge (71), the upper side and the lower side of the reinforcing plate (70) are movably fitted to the inner wall of the hinge (71), the outer end of the hinge (71) is provided with a first screw portion (72), the outer wall of the first screw portion (72) is threadedly connected to the adjusting screw barrel (73), the inner wall of the free end of the adjusting screw barrel (73) is threadedly connected to the second screw portion (74), and the rotating The adjusting screw barrel (73) can make the first screw part (72) and the second screw part (74) move closer to or farther away from each other. An adapting rod (75) is vertically provided at the free end of the second screw part (74). The top and bottom of the adapting rod (75) are both horizontally rotated and provided with adapting seats (76). A reinforcing strip (77) is vertically provided between the two adapting seats (76). The outer side of the reinforcing strip (77) is in a right angle shape. The reinforcing strip (77) is provided on both sides of the main support body (1). The first support part (2), the second support part (5) and the two reinforcing strips (77) are in contact with the four corners of the working well. The end of the movable support body (4) is provided with a first adjusting screw (78) and two first guide rods (79), the outer walls of the two first guide rods (79) are movably fitted to the main support body (1), and the first adjusting screw (78) is threadedly connected to the main support body (1); A middle plate (80) perpendicular to the main support body (1) is also horizontally provided on both sides of the main support body (1), both ends of the middle plate (80) are in contact with the top of the working well, an extension seat (81) is provided at the bottom of the middle plate (80), and extension blocks (82) are provided on the outer sides of both ends of the extension seat (81), the top of the extension block (82) is in contact with the bottom of the middle plate (80), the outer end of the extension block (82) is inclined and in contact with the inner wall of the working well, and the inner end of the extension block (82) is in contact with the inner wall of the working well. Two second guide rods (83) are provided at each end, the outer wall of the second guide rod (83) is movably fitted to the extension seat (81), a second adjusting screw is horizontally rotatably provided in the extension seat (81), the two ends of the second adjusting screw are respectively threadedly connected to the two extension blocks (82), and the two extension blocks (82) can be moved closer to or away from each other by rotating the second adjusting screw, an adjusting disk is provided in the middle of the second adjusting screw, and an opening for the adjusting disk to movably pass through is provided on the extension block (82).

10. A method of using a steering system for cable laying according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, clean the top of the working pit and keep it flat and level; S2, one end of the main support body (1) is attached to the top of the working well, and the position of the movable support body (4) is adjusted so that the end of the movable support body (4) is also attached to the top of the working well, and at the same time, the first support part (2) and the second support part (5) are in contact with two opposite corners of the working well; S3, horizontally moving the movable support body (4) on the main support body (1) and vertically moving the position thereof so that the steering wheel (9) is located in the middle of the cable steering position; S4, fixing the position of the vertical support body (7) by a first positioning mechanism and a second positioning mechanism; S5, one end of the cable is pulled out from the drainage pipe on one side of the working pit, passes around the steering wheel (9), and enters the drainage pipe on the other side of the working pit.

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