Guiding auxiliary device for cable laying at corner of bridge

Abstract

The utility model provides a cable laying guiding auxiliary device at a bridge corner, which comprises two groups of end steering guiding mechanisms and a group of middle steering guiding mechanisms, and each group of end steering guiding mechanisms comprises a first erecting bracket, a driving motor, a driving guiding wheel and a pressing guiding wheel, the first erecting support can be stably erected on the two vertical side walls of a bridge frame, the driving guide wheel is rotationally arranged on the lower portion of the first erecting support, the pressing guide wheels are arranged on the right side of the driving guide wheel side by side, and the driving motor drives the driving guide wheel to rotate. The middle steering guide mechanism comprises a second erecting support, a steering support and a middle guide wheel, the second erecting support can be stably erected on the vertical side wall at the corner of the bridge, the steering support is arranged on the second erecting support, and the middle guide wheel is arranged on the steering support. The cable can smoothly move at the corner of the bridge by using the auxiliary device; and the outer side wall of the cable is prevented from being scratched when the cable moves at the corner.

Description

Technical Field

[0001] The utility model relates to the technical field of cable laying on cable trays, and particularly relates to a cable laying guiding and assisting device at the corner of a cable tray. Background Technique

[0002] A cable tray is a bridge structure made of metal or non-metal materials and is used for installing and supporting cables. It plays a role in fixing, protecting and organizing cables, and can effectively reduce the cost of cable laying and improve the maintenance efficiency.

[0003] In some cable laying projects, due to the inability to use large cable traction equipment, manual traction can only be used during cable traction laying. Manual traction of cables results in a relatively high labor intensity. Further, some cable tray laying is carried out at high altitudes, which is inconvenient for construction workers to carry out construction. Especially when laying cables at the corners of cable trays and other places where turning is required, it is laborious and time-consuming. Often, special personnel need to be arranged to protect and traction the cables at the turning points. When dragging, it may cause damage to the outer skin of the cables, with low efficiency and potential safety hazards. Content of the Utility Model

[0004] The purpose of the utility model is to provide a cable laying guiding and assisting device at the corner of a cable tray. By using this assisting device, it is beneficial to realize the smooth movement of the cable at the corner of the cable tray. At the same time, there is no situation where the outer sidewall of the cable is scratched during the movement of the cable at the corner.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a cable laying guiding and assisting device at the corner of a cable tray, which includes two groups of end turning guiding mechanisms and one group of middle turning guiding mechanisms. The two groups of end turning guiding mechanisms are respectively arranged at both ends of the corner of the cable tray, and the middle turning guiding mechanism is arranged in the middle of the corner of the cable tray. Each group of end turning guiding mechanisms includes a first erection bracket, a driving motor, a driving guide wheel, and a pressing guide wheel. The first erection bracket can be stably erected on the two vertical sidewalls of the cable tray. The driving guide wheel is rotatably arranged at the lower part of the first erection bracket. The pressing guide wheels are arranged side by side on the right side of the driving guide wheel, and the pressing guide wheels can move left and right relative to the driving guide wheel. The driving motor is arranged on the first erection bracket and the driving motor is used to drive the driving guide wheel to rotate. The middle turning guiding mechanism includes a second erection bracket, a turning bracket, and a middle guide wheel. The second erection bracket can be stably erected on the vertical sidewall at the corner of the cable tray. The turning bracket is arranged on the second erection bracket and the turning bracket can rotate and be positioned relative to the second erection bracket. The middle guide wheel is arranged on the turning bracket, and the middle guide wheel can rotate freely and can move left and right relative to the turning bracket.

[0006] Preferably, the pressing guide wheel is rotatably arranged on a [shape] frame. A square guide rod is arranged in the middle of the right side of the [shape] frame. The square guide rod is sleeved on the lower part of an L-shaped ear fixedly arranged on the first erection support. A spring is sleeved on the square guide rod, and the spring is clamped between the [shape] frame and the L-shaped ear.

[0007] Further, two groups of first clamping seats distributed front and back are arranged on the left side of the first erection support, and a group of second clamping seats are arranged on the right side of the first erection support. Each group of the first clamping seats includes a first inner clamping plate and a first outer clamping plate. The first inner clamping plate and the first outer clamping plate are fixedly arranged at intervals left and right on the left side of the first erection support. Two first pressing bolts are arranged on the first outer clamping plate. A first pressing plate is arranged at the threaded end of the first pressing bolt, and the first pressing plate is located between the first inner clamping plate and the first outer clamping plate. The second clamping seat includes a telescopic adjusting plate. The left end of the telescopic adjusting plate can be telescopically adjusted left and right and positioned relative to the support plate of the first erection support. A second inner clamping plate and a second outer clamping plate are fixedly arranged at the lower part of the right end of the telescopic adjusting plate. A clamping gap is arranged between the second inner clamping plate and the second outer clamping plate. Two second pressing bolts are arranged on the second outer clamping plate. A second pressing plate is arranged at the threaded end of the second pressing bolt, and the second pressing plate is located between the second inner clamping plate and the second outer clamping plate.

[0008] Further, a slot is arranged on the support plate. The left end of the telescopic adjusting plate is sleeved in the slot. A third pressing bolt for pressing and fixing the telescopic adjusting plate is arranged at the upper part of the slot.

[0009] Preferably, the second erection support includes a third inner clamping plate and a third outer clamping plate. The third outer clamping plate and the second inner clamping plate are fixedly distributed at intervals left and right. Two fourth pressing bolts are arranged on the third outer clamping plate. A third pressing plate is arranged at the threaded end of the fourth pressing bolt, and the third pressing plate is located between the third inner clamping plate and the third outer clamping plate. The steering support is hinged to the right side of the second erection support through a hinge shaft. A plurality of steering adjustment holes are arranged at equal intervals in the circumferential direction of the hinge shaft at the upper left part of the steering support. A first positioning hole adapted to the steering adjustment holes is arranged at the upper part of the second erection support. A pin shaft penetrates through the first positioning hole and the corresponding steering adjustment hole to realize the rotation limit of the steering support.

[0010] Further, the right end of the steering bracket is in a [ shape structure. A guiding long circular hole is respectively arranged on the upper plate and the lower plate of the steering bracket. A support shaft is vertically sleeved between the two guiding long circular holes. An adjusting threaded rod is arranged at both the upper end and the lower end of the support shaft. The adjusting threaded rod can rotate freely relative to the support shaft. The adjusting threaded rod is threadedly sleeved in an ear arranged on the steering bracket. By synchronously rotating the two adjusting threaded rods, the left and right movement of the support shaft in the direction of the guiding long circular hole is realized. The middle guiding wheel is rotatably arranged on the support shaft.

[0011] Further, a rubber layer is arranged on the outer side walls of both the active guiding wheel and the pressing guiding wheel.

[0012] The beneficial effects of the present utility model are as follows: In the actual application process, the two active guiding wheels are distributed at both ends of the corner of the bridge frame, and the middle guiding wheel is distributed in the middle of the corner of the bridge frame. The smooth 90-degree turn of the cable at the corner is realized by using the arc distribution routes of the two active guiding wheels and the middle guiding wheel. Through the isolation of the active guiding wheel and the middle guiding wheel, the moving protection of the outer side wall of the cable is realized. Since both the active guiding wheel and the middle guiding wheel can rotate freely, the turning and moving resistance of the cable at the corner can be reduced. Further, the pressing guiding wheel can tightly press the cable on the active guiding wheel. Since the active guiding wheel is driven by a driving motor to rotate, the active guiding wheel can have a moving pushing effect on the cable, thereby assisting in reducing the labor intensity of manually pulling the cable to move; By using the left and right movement adjustment ability of the middle guiding wheel, the size of the turning arc of the cable at the corner of the bridge frame can be adjusted, so that in the actual application process, it is convenient to adjust the moving state of the cable. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are partial preferred embodiments of the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0014] Figure 1 It is a schematic diagram of the erection distribution of the present utility model at the corner of the bridge frame;

[0015] Figure 2 It is a schematic diagram of the overall structure of the end steering guiding mechanism;

[0016] Figure 3 It is a schematic diagram of the overall structure of the middle steering guiding mechanism;

[0017] Figure 4 For Figure 1 The enlarged view at A in

[0018] In the figure: 1 first erection bracket, 11 first clamping seat, 111 first inner clamping plate, 112 second inner clamping plate, 113 first pressing bolt, 12 second clamping seat, 121 telescopic adjusting plate, 122 second inner clamping plate, 123 second outer clamping plate, 124 second pressing bolt, 13 support plate, 131 L-shaped ear, 132 third pressing bolt, 2 driving motor, 3 driving guide wheel, 31 driving guide wheel mounting bracket, 4 pressing guide wheel, 41 L-shaped frame, 42 square guide rod, 43 spring, 5 second erection bracket, 51 third inner clamping plate, 52 third outer clamping plate, 53 fourth pressing bolt, 54 hinge shaft, 55 first positioning hole, 6 steering bracket, 61 guiding long circular hole, 62 support shaft, 63 adjusting threaded rod, 64 ear, 65 adjusting positioning hole, 7 middle guide wheel, 8 bridge frame. Specific embodiments

[0019] The following will combine specific embodiments and appendices Figures 1-4 to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some preferred embodiments of the present invention, rather than all embodiments. Those skilled in the art can make similar deformations without violating the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0020] The present invention provides a cable laying guiding and assisting device at the corner of a bridge frame (such as Figure 1As shown in the figure, it includes two sets of end turning and guiding mechanisms and one set of middle turning and guiding mechanism. The two sets of end turning and guiding mechanisms are respectively arranged at both ends of the corner of the bridge frame 8. That is, one set of end turning and guiding mechanism is distributed at one end where the cable enters the corner of the bridge frame 8, and the other set of end turning and guiding mechanism is distributed at the end where the cable exits the corner of the bridge frame 8. The middle turning and guiding mechanism is arranged in the middle of the corner of the bridge frame 8. In practical applications, the middle turning and guiding mechanism is used to realize the smooth turning of the cable at the corner of the bridge frame 8. Each set of end turning and guiding mechanisms includes a first erection bracket 1, a driving motor 2, a driving guide wheel 3, and a pressing guide wheel 4. The first erection bracket 1 can be stably erected on the two vertical side walls of the bridge frame 8. The driving guide wheel 3 is rotatably arranged at the lower part of the first erection bracket 1. The pressing guide wheels 4 are arranged side by side on the right side of the driving guide wheel 3, and the pressing guide wheels 4 can move left and right relative to the driving guide wheel 3. In practical applications, arc-shaped grooves are provided on the outer side walls of the driving guide wheel 3 and the pressing guide wheels 4. When the cable moves through the driving guide wheel 3, the cable is clamped in the arc-shaped grooves on the driving guide wheel 3 and the pressing guide wheels 4. Through the pressing action of the pressing guide wheels 4, the clamping stability of the cable between the driving guide wheel 3 and the pressing guide wheels 4 can be improved. The driving motor 2 is arranged on the first erection bracket 1 and the driving motor 2 is used to drive the driving guide wheel 3 to rotate. When the cable is clamped between the driving guide wheel 3 and the pressing guide wheels 4, by the active rotation of the driving guide wheel 3, the auxiliary movement of the cable can be realized. Thus, when laying the cable, the manual traction labor intensity of cable laying can be assisted to be reduced. To improve the auxiliary movement effect of the driving guide wheel 3 on the cable, a rubber layer can be provided on the outer side walls of the driving guide wheel 3 and the pressing guide wheels 4. The friction coefficient between the rubber layer and the outer side wall of the cable is large, so a large frictional force can be generated. The driving motor 2 can select some motors with relatively large volume but relatively large power according to the actual situation. The middle turning and guiding mechanism includes a second erection bracket 5, a turning bracket 6, and a middle guide wheel 7. The second erection bracket 5 can be stably erected on the vertical side wall at the corner of the bridge frame 8. The turning bracket 6 is arranged on the second erection bracket 5 and the turning bracket 6 can rotate and be positioned relative to the second erection bracket 5. The middle guide wheel 7 is arranged on the turning bracket 6. In practical applications, when the 90-degree turning of the bridge frame 8 is realized through a transition plate (such as Figure 1As shown, at this time, the second erection bracket 5 can be directly erected on the transition plate. At the same time, it is only necessary to ensure that the steering bracket 6 is opposite to the right-angled vertex on the outer side of the corner. When the 90-degree turn of the cable tray 8 is not achieved through a transition plate, that is, at the corner, the two intersecting plates on each side of the cable tray groove are perpendicular to each other. At this time, in order to facilitate the middle guide wheel 7 to still be erected at the middle position of the corner through the second erection bracket 5 (that is, the middle guide wheel 7 is opposite to the right-angled vertex at the corner), first set the second erection bracket 5 at the inner right-angled vertex at the corner. Then, by rotating the steering bracket 6, the middle guide wheel 7 swings towards the middle of the corner. When the swing is in place, fix the steering bracket 6, and then the middle guide wheel 7 is fixed in the middle of the corner of the cable tray. The middle guide wheel 7 can rotate freely and can move left and right relative to the steering bracket 6. During the erection process, by moving the position of the middle guide wheel 7, the adjustment of the turning radius of the cable here can be realized, so as to facilitate the cable to maintain an appropriate turning radius and move smoothly.

[0021] On the basis of the above embodiments, the specific implementation manner for the pressing guide wheel 4 to achieve left and right movement adjustment relative to the driving guide wheel 3 is as follows: The pressing guide wheel 4 is rotatably arranged on a ]-shaped frame 41. A square guide rod 42 is arranged in the middle of the right side of the ]-shaped frame 41. The square guide rod 42 is sleeved on the lower part of an L-shaped ear 131 fixedly arranged on the first erection bracket 1. A spring 43 is sleeved on the square guide rod 42, and the spring 43 is clamped between the ]-shaped frame 41 and the L-shaped ear 131. The thrust of the spring 43 is used to make the pressing guide wheel 4 always approach the driving guide wheel 3. At the same time, because the pressing guide wheel 4 can move left and right automatically, it is convenient to use the driving guide wheel 3 and the pressing guide wheel 4 to clamp and lay cables of different thicknesses.

[0022] Based on the above embodiments, the specific implementation of the first erection bracket 1 is as follows: Two sets of first clamping seats 11 distributed front and back are arranged on the left side of the first erection bracket 1, and one set of second clamping seats 12 is arranged on the right side of the first erection bracket 1. Each set of the first clamping seats 11 includes a first inner clamping plate 111 and a first outer clamping plate 112. The first inner clamping plate 111 and the first outer clamping plate 112 are fixedly arranged at intervals left and right on the left side of the first erection bracket 1. In practical applications, a vertical side wall of the bridge 8 is clamped between the first inner clamping plate 111 and the first outer clamping plate 112. Two first pressing bolts 113 are arranged on the first outer clamping plate 112. A first pressing plate is arranged at the threaded end of the first pressing bolt 113, and the first pressing plate is located between the first inner clamping plate 111 and the first outer clamping plate 112. By rotating the first pressing bolt 113, the first pressing plate can be made to press against the corresponding vertical side wall of the bridge 8, thereby realizing the clamping and positioning of the bridge 8 by the first clamping seat 11. The second clamping seat 12 includes a telescopic adjustment plate 121. The left end of the telescopic adjustment plate 121 can be adjusted and positioned left and right relative to the support plate 13 of the first erection bracket 1. The telescopic adjustment plate 121 moves and adjusts on the support plate 13, so as to facilitate the position adjustment of the second clamping seat 12 according to the groove width of the bridge 8, enabling the first erection bracket 1 to be stably erected on bridges 8 of different widths by using the first clamping seat 11 and the second clamping seat 12, and improving the application flexibility of the present utility model. A second inner clamping plate 122 and a second outer clamping plate 123 are fixedly arranged at the lower part of the right end of the telescopic adjustment plate 121. A clamping gap is arranged between the second inner clamping plate 122 and the second outer clamping plate 123. A vertical side wall of the bridge 8 is clamped in the above clamping gap. Two second pressing bolts 124 are arranged on the second outer clamping plate 123. A second pressing plate is arranged at the threaded end of the second pressing bolt 124, and the second pressing plate is located between the second inner clamping plate 122 and the second outer clamping plate 124. By rotating the second pressing bolt 124, the second pressing plate is made to press against the side wall of the bridge 8, realizing the stable clamping of the second clamping seat 12 on the bridge 8. The specific implementation of the telescopic adjustment of the telescopic adjustment plate 121 relative to the support plate 13 is as follows: A slot is arranged on the support plate 13. The left end of the telescopic adjustment plate 121 is sleeved in the slot, and a third pressing bolt 132 for pressing and fixing the telescopic adjustment plate 121 is arranged at the upper part of the slot.

[0023] Based on the above embodiments, the specific implementation manner of the connection between the second erection bracket 5 and the steering bracket 6 is as follows: The second erection bracket 5 includes a third inner clamping plate 51 and a third outer clamping plate 52. The third outer clamping plate 52 and the second inner clamping plate 51 are fixedly distributed at intervals left and right. In practical applications, a vertical side wall of the cable bridge 8 is clamped between the third inner clamping plate 51 and the third outer clamping plate 52. Two fourth pressing bolts 53 are provided on the third outer clamping plate 52. A third pressing plate is provided at the threaded end of the fourth pressing bolt 53, and the third pressing plate is located between the third inner clamping plate 51 and the third outer clamping plate 52. By rotating the fourth pressing bolt 53, the third pressing plate is pressed against the vertical side wall of the cable bridge 8, thereby realizing the erection and fixation of the second erection bracket 5. The steering bracket 6 is hingedly arranged on the right side of the second erection bracket 5 through a hinge shaft 54. A plurality of steering adjustment holes 65 are provided on the upper left side of the steering bracket 6 and are equally spaced along the circumferential direction of the hinge shaft 54. A first positioning hole 55 adapted to the steering adjustment holes 65 is provided on the upper part of the second erection bracket 5. A pin shaft passes through the first positioning hole 55 and the corresponding steering adjustment hole 65 to realize the rotation limit of the steering bracket 6. Further, the right end of the steering bracket 6 is in a [shape structure. Guide long holes 61 are respectively provided on the upper plate and the lower plate of the steering bracket 6. A support shaft 62 is vertically sleeved between the two guide long holes 61. Adjusting threaded rods 63 are provided at the upper end and the lower end of the support shaft 62. The adjusting threaded rods 63 can rotate freely relative to the support shaft 62. The adjusting threaded rods 63 are threadedly sleeved in the lugs 64 provided on the steering bracket 6. By synchronously rotating the two adjusting threaded rods 63, the support shaft 62 is moved left and right in the direction of the guide long holes 61. The middle guide wheel 7 is rotatably arranged on the support shaft 62. By adjusting the movement of the support shaft 62 by the two adjusting threaded rods 63, the movement adjustment of the middle guide wheel 7 is realized, and then the change of the cable support position of the middle guide wheel 7 is realized. By changing the change of the cable support position of the middle guide wheel 7, it is convenient to change the bending radius of the cable laying, thereby facilitating the movement of the cable.

[0024] In practical applications, when the cable is inserted into the two sets of end steering guide mechanisms and the middle steering guide mechanism, the cable is located on the right side of the two driving guide wheels 3 and the middle guide wheel 7. At the same time, the pressing guide wheel 4 assists in pressing the cable onto the corresponding driving guide wheel 3. By driving the driving guide wheel 3 to rotate through the driving motor 2, the auxiliary laying and conveying of the cable is realized.

[0025] In the present utility model, "upper", "lower", "front", "rear", "left", and "right" are relative positions adopted for conveniently describing the position relationship, and therefore cannot be understood as absolute positions to limit the protection scope.

[0026] Except for the technical features described in the specification, the rest are well-known technologies to those skilled in the art.

[0027] As described above, the preferred embodiments and examples of the present utility model have been described in detail in conjunction with the accompanying drawings. However, the present utility model is not limited to the above-mentioned embodiments and examples. For those of ordinary skill in the art, without departing from the concept of the present utility model, several improvements and modifications can still be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A cable laying guide auxiliary device at the corner of a bridge, characterized in that: It comprises two groups of end steering guide mechanisms and one group of middle steering guide mechanism, the two groups of end steering guide mechanisms are respectively arranged at the two ends of the bridge frame corner, the middle steering guide mechanism is arranged in the middle of the bridge frame corner, each group of end steering guide mechanisms comprises a first erection bracket, a drive motor, an active guide wheel, and a clamping guide wheel, the first erection bracket can be stably erected on the two vertical side walls of the bridge frame, the active guide wheel is rotatably arranged at the lower part of the first erection bracket, the clamping guide wheel is arranged side by side on the right side of the active guide wheel, and the clamping guide wheel can move left and right relative to the active guide wheel, the drive motor is arranged on the first erection bracket and the drive motor is used to drive the active guide wheel to rotate; The central steering and guiding mechanism includes a second erection bracket, a steering bracket, and a central guide wheel. The second erection bracket can be stably erected on the vertical side wall at the corner of the bridge frame. The steering bracket is arranged on the second erection bracket and can be rotated and positioned relative to the second erection bracket. The central guide wheel is arranged on the steering bracket and can rotate freely and can move left and right relative to the steering bracket.

2. The cable laying guide auxiliary device at the corner of the bridge according to claim 1 is characterized in that: The clamping guide wheel is rotatably arranged on an L-shaped frame, a square guide rod is arranged in the middle of the right side of the L-shaped frame, the square guide rod is sleeved on the lower part of an L-shaped ear fixedly arranged on the first mounting bracket, a spring is sleeved on the square guide rod, and the spring is clamped between the L-shaped frame and the L-shaped ear.

3. The cable laying guide auxiliary device at the bridge corner according to claim 2 is characterized in that The left side of the first mounting bracket is provided with two groups of first clamping seats distributed front and back, and a group of second clamping seats is provided on the right side of the first mounting bracket, each group of the first clamping seats includes a first inner clamping plate and a first outer clamping plate, the first inner clamping plate and the first outer clamping plate are fixedly arranged on the left side of the first mounting bracket at left and right intervals, two first pressing bolts are arranged on the first outer clamping plate, a first pressing plate is arranged at the threaded end of the first pressing bolt, and the first pressing plate is located between the first inner clamping plate and the first outer clamping plate, the second clamping seat includes a telescopic adjustment plate, the left end of the telescopic adjustment plate can be telescopically adjusted and positioned left and right relative to the support plate of the first mounting bracket, the second inner clamping plate and the second outer clamping plate are fixedly arranged at the lower part of the right end of the telescopic adjustment plate, a clamping gap is provided between the second inner clamping plate and the second outer clamping plate, two second pressing bolts are arranged on the second outer clamping plate, a second pressing plate is arranged at the threaded end of the second pressing bolt, and the second pressing plate is located between the second inner clamping plate and the second outer clamping plate.

4. The cable laying guide auxiliary device at the bridge corner according to claim 3 is characterized in that: A slot is arranged on the support plate, the left end of the telescopic adjustment plate is sleeved in the slot, and a third pressing bolt for pressing and fixing the telescopic adjustment plate is arranged on the upper part of the slot.

5. The cable laying guide auxiliary device at the bridge corner according to claim 2 is characterized in that: The second erection bracket includes a third inner clamping plate and a third outer clamping plate, the third outer clamping plate and the second inner clamping plate are fixedly distributed at intervals on the left and right, two fourth pressing bolts are arranged on the third outer clamping plate, a third pressing plate is arranged at the threaded end of the fourth pressing bolt, and the third pressing plate is located between the third inner clamping plate and the third outer clamping plate, the steering bracket is hingedly arranged on the right side of the second erection bracket through an articulated shaft, a plurality of steering adjustment holes equally spaced along the circumferential direction of the articulated shaft are arranged on the upper left side of the steering bracket, a first positioning hole matched with the steering adjustment hole is arranged on the upper part of the second erection bracket, and a pin shaft passes through the first positioning hole and the corresponding steering adjustment hole to realize the rotation limit of the steering bracket.

6. The cable laying guide auxiliary device at the bridge corner according to claim 5 is characterized in that: The right end of the steering bracket is in a [-shaped structure, and a guide oblong hole is respectively arranged on the upper plate and the lower plate of the steering bracket, a support shaft is vertically sleeved between the two guide oblong holes, and an adjusting threaded rod is arranged on the upper end and the lower end of the support shaft. The adjusting threaded rod can rotate freely relative to the support shaft, and the adjusting threaded rod is threadedly sleeved in the support ear arranged on the steering bracket. The left and right movement of the support shaft in the direction of the guide oblong hole is realized by synchronously rotating the two adjusting threaded rods, and the middle guide wheel is rotatably arranged on the support shaft.

7. The cable laying guide auxiliary device at the bridge corner according to claim 1 is characterized in that: A rubber layer is arranged on the outer side walls of the active guide wheel and the pressing guide wheel.

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