A swivel bridge device

Abstract

The present invention provides a rotating bridge device, which includes a traction cable guiding device, at least two groups of traction cables, and a concrete turntable for carrying the rotating bridge. The concrete turntable is a reinforced concrete structure. The embedded section of the traction cable is pre-embedded in the concrete turntable, and the outlet section of the traction cable is wound along the circumference of the concrete turntable. The traction cable guiding device includes a bearing plate, which is arranged at the outlet position of the traction cable. The bearing plate includes a buried part and a protruding part that are connected to each other. The buried part is buried in the concrete turntable, and the protruding part is located on the outer surface of the concrete turntable and extends along the circumference of the concrete turntable. The outlet section of the traction cable at the outlet position abuts against the surface of the bearing plate on the side away from the axis of the concrete turntable. The rotating bridge device involved in the present invention can provide radial support for the traction cable along the concrete turntable, reduce the pressure generated by the traction cable on the concrete during the bridge rotation construction process, prevent the concrete from being crushed and the traction cable from being damaged.

Description

Technical Field

[0001] The present invention belongs to the field of bridge construction, and particularly relates to a rotating bridge device. Background Art

[0002] Bridge rotating construction refers to a construction method in which the bridge structure is fabricated at a non-designed axis position and then rotated into place. In recent years, with the rapid development of transportation in China, the construction of overpass bridges has increased day by day. Bridge rotating construction can minimize the impact on the existing traffic under the bridge. Therefore, bridge rotating construction has been more and more widely applied.

[0003] For bridge rotating construction, a turntable device is considered to be arranged at the bottom of the pier or the bottom of the beam structure of the beam. Two groups of traction cables are fixedly arranged on the concrete turntable of the turntable device. The two groups of traction cables have opposite traction directions and are symmetrically arranged in the tangential direction of the concrete turntable. During bridge rotating construction, the concrete turntable is rotated by synchronously tensioning the traction cables to provide a rotational torque, thereby driving the rotation of the bridge.

[0004] In the prior art, after the traction cable extends out of the concrete, it is in direct contact with the concrete on the circumferential surface layer of the concrete turntable. When the traction cable is tensioned, the traction cable will exert a pressure on the concrete in the radial direction of the concrete turntable. Especially during the implementation of large-span or relatively large-span bridge rotation, the surface concrete at the outlet position where the traction cable extends out of the concrete and in the vicinity is easily locally crushed by the traction cable, and the traction cable is damaged, making the bridge rotating construction unable to continue. Summary of the Invention

[0005] In view of this, the embodiments of the present application are expected to provide a rotating bridge device that can reduce the pressure of the traction cable on the circumferential surface concrete of the concrete turntable.

[0006] To achieve the above object, an embodiment of the present invention provides a rotating bridge device, including a traction cable guiding device, at least two groups of traction cables, and a concrete turntable for carrying the rotating bridge. The concrete turntable is a reinforced concrete structure. The embedded section of the traction cable is embedded in the concrete turntable. The outlet section of the traction cable is wound along the circumference of the concrete turntable. The traction cable guiding device includes a bearing plate. The bearing plate is arranged at the outlet position of the traction cable. The bearing plate includes a buried part and an extended part that are connected to each other. The buried part is buried in the concrete turntable. The extended part is located on the outer surface of the concrete turntable and extends along the circumference of the concrete turntable. The outlet section and the embedded section of the traction cable at the outlet position abut against the surface of the bearing plate on the side away from the axis of the concrete turntable.

[0007] In some embodiments, in a plane projection perpendicular to the axial direction of the concrete turntable, the extension portion is arc-shaped, the concave surface of the extension portion fits the circumferential surface of the concrete turntable, and the outlet segment of the traction rope abuts against the convex surface of the extension portion.

[0008] In some embodiments, the distance between the first end of the embedded portion away from the extending portion and the axis of the concrete turntable is smaller than the distance between the second end of the embedded portion close to the extending portion and the axis of the concrete turntable, and the embedded section of the traction rope at the outlet position abuts against the surface of the embedded portion on the side away from the axis of the concrete turntable.

[0009] In some embodiments, the traction rope guide device also includes a guide member, and the side of the embedded portion away from the axis of the concrete turntable is connected to the guide member, and the guide member and the embedded portion are arranged to form a guide channel extending along the circumference of the concrete turntable, and the traction rope is passed through the guide channel and extends along the circumference of the concrete turntable.

[0010] In some embodiments, the guide member includes two guide side plates, which are perpendicular to the axial direction of the concrete turntable. The embedded portion is provided with one guide side plate on both sides along the circumference of the concrete turntable, and the traction rope is passed between the two guide side plates and in contact with the two guide side plates.

[0011] In some embodiments, the guide member includes a plurality of side guide columns, one end of each of which is connected to the surface of the embedded portion on a side away from the axis of the concrete turntable, the plurality of side guide columns are divided into two rows, the side guide columns in each row are arranged at intervals along the circumference of the concrete turntable, the two rows of side guide columns are arranged at intervals along the axial direction of the concrete turntable, and the traction rope is passed between the two rows of side guide columns and contacts the circumferential surfaces of the two rows of side guide columns.

[0012] In some embodiments, the traction rope guide device further includes a supporting member connected to a surface of the extension portion on a side away from the axis of the concrete turntable, and the supporting member is located below the outlet section of the traction rope to support the traction rope.

[0013] In some embodiments, the supporting member includes a plurality of pegs, one end of each of the pegs is connected to the surface of the protruding portion on the side away from the axis of the concrete turntable, and the plurality of pegs are arranged in a row at intervals along the circumference of the concrete turntable, and some of the outlet segments of the traction rope are supported on the upper part of the circumferential surface of the pegs.

[0014] In some embodiments, the cable guiding device further includes a guiding member. One side of the embedding portion away from the axis of the concrete turntable is connected to the guiding member. The guiding member and the embedding portion enclose a guiding channel extending along the circumferential direction of the concrete turntable. The cable is threaded through the guiding channel and extends along the circumferential direction of the concrete turntable. The supporting plane of the guiding member that supports the cable upward along the axial direction of the concrete turntable is the first supporting plane, and the supporting plane of the supporting member that supports the cable upward along the axial direction of the concrete turntable is the second supporting plane. The first supporting plane and the second supporting plane are located on the same plane.

[0015] In some embodiments, the cable guiding device further includes a fixing member. The fixing member is connected to the surface of the load-bearing plate on the side close to the axis of the concrete turntable, and the fixing member is embedded in the concrete turntable.

[0016] In some embodiments, the poured concrete can pass through the fixing member along the axial direction of the concrete turntable.

[0017] In some embodiments, the fixing member includes at least one fixing plate, and the fixing plate is provided with a plurality of through holes along the axial direction of the concrete turntable.

[0018] In some embodiments, the fixing member includes a plurality of fixing columns. One end of each fixing column is connected to the surface of the load-bearing plate on the side close to the axis of the concrete turntable and is arranged at intervals.

[0019] In the rotary bridge equipment provided by the embodiments of the present invention, by providing the load-bearing plate in the cable guiding device, the extending portion provides support for the outgoing line segment along the radial direction of the concrete turntable, preventing the cable from directly contacting the concrete surface, reducing the pressure generated by the cable on the concrete at the outgoing line position during the bridge rotation construction process, especially when rotating large-span or relatively large-span bridges, preventing the concrete from being crushed and the cable from being damaged. The embedding portion is embedded in the concrete, making the connection between the load-bearing plate and the concrete turntable more firm, preventing the load-bearing plate from slipping due to excessive extrusion force of the cable on the load-bearing plate during the bridge rotation construction process, avoiding damage to the cable and the concrete, and playing a certain guiding role for the cable, enabling the cable to extend towards the extending portion and abut against the extending portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic cross-sectional top view of the rotary bridge equipment in an embodiment of the present invention;

[0021] Figure 2 is Figure 1 an enlarged schematic view of position A in

[0022] Figure 3 isFigure 2 Cross-sectional schematic view in the B-B direction;

[0023] Figure 4 is Figure 2 Cross-sectional schematic view in the C-C direction;

[0024] Figure 5 Schematic view of the traction cable guiding device in an embodiment of the present invention;

[0025] Figure 6 is Figure 5 Left view of;

[0026] Figure 7 Schematic view of the traction cable guiding device in another embodiment of the present invention;

[0027] Figure 8 is Figure 7 Left view of.

[0028] Description of reference numerals

[0029] 10, Rotary bridge equipment 11, Traction cable guiding device 111, Load-bearing plate

[0030] 1111, Protruding part 1112, Embedded part 112, Guide part

[0031] 112a, Guide channel 112b, First support surface 1121, Guide side plate

[0032] 1122, Side guide post 113, Supporting part 113a, Second support surface

[0033] 1131, Stud 114, Fixing part 1141, Fixing plate

[0034] 1142, Fixing column 114a, Through hole 12, Concrete turntable

[0035] 12a, Cable outlet position 13, Traction cable 131, Embedded section

[0036] 132, Outlet section Detailed implementation manners

[0037] It should be noted that, without conflict, the embodiments in the present application and the technical features in the embodiments can be combined with each other. The detailed description in the detailed implementation manners should be understood as an explanatory illustration of the purpose of the present application and should not be regarded as an improper limitation to the present application.

[0038] In the description of the present application, the "upper" and "lower" orientations or positional relationships are based on the attached Figure 3The orientation or positional relationship shown should be understood that these orientation terms are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present application.

[0039] An embodiment of the present invention provides a rotating bridge device 10. Refer to Figure 1 and Figure 2 . The rotating bridge device 10 includes a traction cable guiding device 11, at least two groups of traction cables 13, and a concrete turntable 12 for carrying the rotating bridge. The concrete turntable 12 is a reinforced concrete structure. The embedded section 131 of the traction cable 13 is pre-embedded in the concrete turntable 12, and the outgoing section 132 of the traction cable 13 is wound around the circumference of the concrete turntable 12. The traction cable guiding device 11 includes a bearing plate 111. The bearing plate 111 is arranged at the outgoing position 12a of the traction cable 13. The bearing plate 111 includes a buried part 1112 and a protruding part 1111 which are connected to each other. The buried part 1112 is buried in the concrete turntable 12, and the protruding part 1111 is located on the outer surface of the concrete turntable 12 and extends along the circumference of the concrete turntable 12. The outgoing section 132 and the embedded section 131 of the traction cable 13 at the outgoing position 12a abut against the surface of the bearing plate 111 on the side away from the axis of the concrete turntable 12.

[0040] During the construction of a rotating bridge, especially during the rotating construction of a long-span or relatively large-span bridge, due to the large self-weight of the bridge to be rotated, a large rotating torque needs to be applied to the concrete turntable 12. Therefore, the tension on the traction cable 13 will also increase significantly, resulting in a large pressure on the concrete along the radial direction of the concrete turntable 12 by the traction cable 13. As a result, problems such as concrete being crushed and the traction cable 13 being damaged occur.

[0041] The rotating bridge device 10 provided by the embodiment of the present invention, by setting the bearing plate 111 in the traction cable guiding device 11, enables the protruding part 1111 to provide support for the outgoing section 132 along the radial direction of the concrete turntable 12, preventing the traction cable 13 from directly contacting the concrete at the outgoing position 12a, reducing the pressure on the concrete at the outgoing position 12a by the traction cable 13 during the rotating construction of the bridge, especially during the rotation of a long-span or relatively large-span bridge, preventing the concrete from being crushed and the traction cable 13 from being damaged. The buried part 1112 is buried in the concrete, making the connection between the bearing plate 111 and the concrete turntable 12 more firm, preventing the bearing plate 111 from slipping due to the excessive extrusion force of the traction cable 13 on the bearing plate 111 during the rotating construction of the bridge, avoiding damage to the traction cable 13 and the concrete, and playing a certain guiding role for the traction cable 13, enabling the traction cable 13 to extend towards the protruding part 1111 and abut against the protruding part 1111.

[0042] It can be understood that in order to make the supporting force exerted by the protruding portion 1111 on the outgoing line segment 132 uniform and make the tension force received by the towing cable 13 change uniformly along the circumferential direction of the concrete turntable 12, the shape of the protruding portion 1111 should be adapted to the circumferential surface shape of the concrete turntable 12.

[0043] Specifically, in some embodiments, referring to Figure 2 , in the planar projection perpendicular to the axial direction of the concrete turntable 12, the protruding portion 1111 is arc-shaped, the surface of the concave side of the protruding portion 1111 fits the circumferential surface of the concrete turntable 12, and the outgoing line segment 132 of the towing cable 13 abuts against the convex side surface of the protruding portion 1111. The fitting of the protruding portion 1111 and the concrete turntable 12 can increase the force-bearing contact area between the protruding portion 1111 and the surface of the concrete turntable 12 and reduce the pressure. The towing cable 13 can extend along the circumferential direction of the concrete turntable 12 starting from the outgoing line position 12a, and the force-bearing direction of the towing cable 13 can change gently along the circumferential direction, that is, the force on the towing cable 13 at the outgoing line position 12a is smooth, preventing the towing cable 13 from being damaged due to sudden change of the force-bearing direction resulting in concentrated force. The angle change of the towing cable 13 is small during the process of transitioning from contacting the protruding portion 1111 to contacting the concrete on the circumferential surface of the concrete turntable 12, preventing the towing cable 13 from being damaged due to concentrated force during the tension process.

[0044] In some embodiments, referring to Figure 2 , the distance between the first end of the embedding portion 1112 far from the protruding portion 1111 and the axis of the concrete turntable 12 is less than the distance between the second end of the embedding portion 1112 close to the protruding portion 1111 and the axis of the concrete turntable 12, and the embedded section 131 of the towing cable 13 at the outgoing line position 12a abuts against the surface of the side of the embedding portion 1112 far from the axis of the concrete turntable 12. The embedding portion 1112 plays a certain guiding role, guiding the towing cable 13 to gradually extend outward along the embedding portion 1112 until it fits the protruding portion 1111, avoiding excessive angle change of the towing cable 13 during the outward extension process resulting in concentrated force.

[0045] After the towing cable 13 abuts against the bearing plate 111, especially when each group of towing cables 13 is composed of multiple bundles of towing cables, the towing cables 13 can be further gathered along the axial direction of the concrete turntable 12. On the one hand, it prevents the towing cables 13 from shifting axially or even getting out of the support range of the bearing plate 111 under the influence of the impact and vibration of the flowing concrete during concrete pouring and vibration, resulting in the bearing plate 111 being unable to support the towing cables 13; on the other hand, it plays a guiding role for the towing cables 13, guiding them to extend in the direction of the protruding portion 1111. Therefore, the towing cable guiding device 11 in the embodiments of the present invention can adopt additional positioning and guiding measures to achieve the above purposes.

[0046] Exemplarily, in some embodiments, referring toFigure 2 and Figures 4 to 8 The cable guide device 11 further includes a guide member 112. One side of the embedding portion 1112 away from the axis of the concrete turntable 12 is connected to the guide member 112. The guide member 112 and the embedding portion 1112 enclose a guide channel 112a extending along the circumferential direction of the concrete turntable 12. The cable 13 is threaded through the guide channel 112a and extends along the circumferential direction of the concrete turntable 12. The guide channel 112a exerts a binding force on the cable 13 in the axial direction of the concrete turntable 12, preventing the cable 13 from shifting upward or downward in this direction, so that the load-bearing member 111 can better support the cable 13.

[0047] In some embodiments, referring to Figure 4 、 Figure 5 and Figure 6 The guide member 112 includes two guide side plates 1121. The guide side plates 1121 are perpendicular to the axial direction of the concrete turntable 12. One guide side plate 1121 is provided on each of the two sides of the embedding portion 1112 along the circumferential direction of the concrete turntable 12. The cable 13 is threaded between the two guide side plates 1121 and contacts the two guide side plates 1121. The guide side plates 1121 limit the position of the cable 13 from the upper and lower directions, effectively preventing the cable 13 from shifting in the axial direction of the concrete turntable 12 at the position of the embedding portion 1112.

[0048] It can be understood that the two sides of the embedding portion 1112 along the circumferential direction of the concrete turntable 12 include the two side surfaces of the embedding portion 1112 and the positions near the two side surfaces.

[0049] In some embodiments, the guide side plates 1121 and the embedding portion 1112 are of a split structure, and the guide side plates 1121 are connected to the embedding portion 1112 by welding; in other embodiments, the guide side plates 1121 and the embedding portion 1112 can also be made into one body, that is, an integrally formed structure, and then the guide channel 112a is formed by stamping and bending.

[0050] In some embodiments, referring to Figure 7 and Figure 8, the guiding member 112 includes a plurality of side guiding columns 1122. One end of each side guiding column 1122 is connected to the surface of the embedding portion 1112 on the side away from the axis of the concrete turntable 12. The plurality of side guiding columns 1122 are divided into two columns, and the side guiding columns 1122 within each column are arranged at intervals along the circumferential direction of the concrete turntable 12. The two columns of side guiding columns 1122 are arranged at intervals along the axial direction of the concrete turntable 12. The traction cable 13 passes through between the two columns of side guiding columns 1122 and contacts the circumferential surfaces of the two columns of side guiding columns 1122. The two columns of side guiding columns 1122 contact the traction cable 13 from the upper and lower directions respectively through the circumferential surfaces, and together with the embedding portion 1112, form a guiding channel 112a, thereby preventing the traction cable 13 from shifting along the axial direction of the concrete turntable 12.

[0051] The side guiding columns 1122 can be made of steel bars or bolts and welded to the embedding portion 1112, thus having the advantages of simple structure, easy manufacturing, and low cost.

[0052] The outgoing line segment 132 resting on the protruding portion 1111 will generate a downward displacement under the influence of gravity. On the one hand, it causes the outgoing line segment 132 to shift and lose the support of the protruding portion 1111. On the other hand, it makes the force direction of the traction cable 13 no longer along the circumferential direction of the concrete turntable 12, resulting in uneven force. Therefore, a corresponding structure can be provided on the protruding portion 1111 to support the outgoing line segment 132 upward.

[0053] In some embodiments, referring to Figure 2 , Figure 3 and Figures 5 to 8 , the traction cable guiding device 11 further includes a supporting member 113. The supporting member 113 is connected to the surface of the protruding portion 1111 on the side away from the axis of the concrete turntable 12. The supporting member 113 is located below the outgoing line segment 132 of the traction cable 13 to support the traction cable 13. The supporting member 113 exerts an upward supporting force on the outgoing line segment 132 to prevent the outgoing line segment 132 from shifting downward due to its own gravity.

[0054] The specific structural form of the supporting member 113 is not limited. Exemplarily, in some embodiments, referring to Figure 2 , Figure 3 and Figures 5 to 8 , the supporting member 113 includes a plurality of stud bolts 1131. One end of each of the plurality of stud bolts 1131 is connected to the surface of the protruding portion 1111 on the side away from the axis of the concrete turntable 12. The plurality of stud bolts 1131 are arranged in a column at intervals along the circumferential direction of the concrete turntable 12, and the outgoing line segments 132 of part of the traction cable 13 are supported on the upper part of the circumferential surfaces of the stud bolts 1131. Through the contact between the circumferential surfaces of the stud bolts 1131 and the outgoing line segments 132, the outgoing line segments 132 are subjected to an upward supporting force to prevent the outgoing line segments 132 from shifting downward.

[0055] The stud 1131 can be welded to the protruding part 1111 using steel bars or bolts, thus having the advantages of simple structure, easy manufacturing, and low cost.

[0056] The spacing distance between several studs 1131 should be such that the outgoing line segment 132 does not produce an obvious downward offset or the downward offset amount meets the design requirements.

[0057] In some embodiments, referring to Figure 6 and Figure 8 , in the embodiment where the cable guiding device 11 includes the above-mentioned guiding member 112 and supporting member 113, the supporting plane of the guiding member 112 that supports the cable 13 upward along the axial direction of the concrete turntable 12 is the first supporting surface 112b (the position is shown by a dashed line), and the supporting plane of the supporting member 113 that supports the cable 13 upward along the axial direction of the concrete turntable 12 is the second supporting surface 113a (the position is shown by a dashed line). The first supporting surface 112b and the second supporting surface 113a are located on the same plane. The fact that the first supporting surface 112b and the second supporting surface 113a are located on the same plane enables the cable 13 to continuously extend along the circumferential direction of the concrete turntable 12 without changing the extension direction, preventing the cable 13 from being damaged due to force concentration at the position where the extension direction changes.

[0058] In order to prevent the acting force exerted by the cable 13 on the cable guiding device 11 from being too large during the tensioning process, which may cause relative movement between the cable guiding device 11 and the concrete turntable 12, further measures can be taken to strengthen the connection between the cable guiding device 11 and the concrete turntable 12.

[0059] In some embodiments, referring to Figures 2 to 4 as well as Figure 5 and Figure 7 , the cable guiding device 11 further includes a fixing member 114. The fixing member 114 is connected to the surface of the bearing plate 111 close to the axis of the concrete turntable 12, and the fixing member 114 is embedded in the concrete turntable 12. By embedding the fixing member 114 in the concrete turntable 12, the contact area between the cable guiding device 11 and the concrete in the concrete turntable 12 is increased, the friction force is increased, and the connection strength between the cable guiding device 11 and the concrete turntable 12 is improved.

[0060] In some embodiments, referring to Figure 2 , the poured concrete can pass through the fixing member 114 along the axial direction of the concrete turntable 12. During the pouring process of the concrete turntable 12, it can prevent the fixing member 114 from blocking the concrete extending along the axial direction of the concrete turntable 12, keep the concrete as a whole strength, reduce the probability of the concrete cracking due to the excessive action exerted by the cable guiding device 11, and improve the connection strength between the fixing member 114 and the concrete turntable 12.

[0061] In some embodiments, referring to Figure 5 , the fixing member 114 includes at least one fixing plate 1141, and a plurality of through holes 114a are provided in the fixing plate 1141 along the axial direction of the concrete turntable 12. The fixing plate 1141 increases the contact area between the traction cable guiding device 11 and the concrete in the concrete, thereby increasing the friction force. The poured concrete can pass through the through holes 114a, preventing the concrete from being blocked by the fixing plate 1141 and improving the overall strength of the concrete.

[0062] It can be understood that, referring to Figure 3 and Figure 4 , multiple fixing plates 1141 perpendicular to the axial direction of the concrete turntable 12 can be provided to further improve the connection strength between the traction cable guiding device 11 and the concrete turntable 12.

[0063] In some embodiments, referring to Figure 7 , the fixing member 114 includes a plurality of fixing columns 1142. One end of each fixing column 1142 is connected to and spaced on the surface of the load-bearing plate 111 on the side close to the axis of the concrete turntable 12. The fixing columns 1142 are implanted into the circumferentially poured concrete of the concrete turntable 12, increasing the contact area and friction force between the traction cable guiding device 11 and the concrete in the concrete. The poured concrete can pass through the gaps between the fixing columns 1142, preventing the concrete from being blocked by the fixing columns 1142.

[0064] It can be understood that the axial direction of each fixing column 1142 can be parallel to the radial direction of the concrete turntable 12 at the position where the fixing column 1142 is located, thereby increasing the implantation depth of the fixing column 1142 and improving the connection stability. The fixing columns 1142 can be made of steel bars or bolts welded to the load-bearing plate 111, thus having the advantages of simple structure, easy manufacturing, and low cost.

[0065] The various embodiments / implementations provided in this application can be combined with each other without conflict.

[0066] The above are only the preferred embodiments of this application and are not used to limit this application. For those skilled in the art, this application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included in the protection scope of this application.

Claims

1. A rotating bridge device, It is characterized in that The invention comprises a traction cable guide device, at least two groups of traction cables, and a concrete turntable for carrying a rotating bridge, wherein the concrete turntable is a reinforced concrete structure, the embedded section of the traction cable is pre-embedded in the concrete turntable, and the outgoing section of the traction cable is arranged around the circumference of the concrete turntable, the traction cable guide device comprises a bearing plate, the bearing plate is arranged at the outgoing position of the traction cable, the bearing plate comprises an embedded part and an extended part connected to each other, the embedded part is embedded in the concrete turntable, the extended part is located on the outer surface of the concrete turntable and extends along the circumference of the concrete turntable, and the outgoing section and the embedded section of the traction cable at the outgoing position abut against the surface of the bearing plate on the side away from the axis of the concrete turntable; In a plane projection perpendicular to the axial direction of the concrete turntable, the extension portion is arc-shaped, the concave surface of the extension portion fits the circumferential surface of the concrete turntable, and the outlet section of the traction rope abuts against the convex surface of the extension portion.

2. The rotating bridge device according to claim 1, It is characterized in that The distance between the first end of the embedded portion away from the extending portion and the axis of the concrete turntable is smaller than the distance between the second end of the embedded portion close to the extending portion and the axis of the concrete turntable, and the embedded section of the traction rope at the outlet position abuts against the surface of the embedded portion on the side away from the axis of the concrete turntable.

3. The rotating bridge device according to claim 1, It is characterized in that The traction rope guide device also includes a guide member, and the side of the embedded part away from the axis of the concrete turntable is connected to the guide member. The guide member and the embedded part are arranged to form a guide channel extending along the circumference of the concrete turntable. The traction rope is inserted into the guide channel and extends along the circumference of the concrete turntable.

4. The rotating bridge device according to claim 3, It is characterized in that The guide member includes two guide side plates, which are perpendicular to the axial direction of the concrete turntable. The embedded portion is provided with one guide side plate on both sides along the circumference of the concrete turntable, and the traction rope is passed between the two guide side plates and contacts the two guide side plates.

5. The rotating bridge device according to claim 3, It is characterized in that The guide member includes a plurality of side guide columns, one end of each of which is connected to the surface of the embedded portion on a side away from the axis of the concrete turntable, the plurality of side guide columns are divided into two rows, the side guide columns in each row are arranged at intervals along the circumference of the concrete turntable, the two rows of side guide columns are arranged at intervals along the axial direction of the concrete turntable, and the traction rope is passed between the two rows of side guide columns and contacts the circumferential surfaces of the two rows of side guide columns.

6. The rotating bridge device according to claim 1, It is characterized in that The traction rope guiding device also includes a supporting member, which is connected to the surface of the protruding portion on the side away from the axis of the concrete turntable, and the supporting member is located below the outlet section of the traction rope to support the traction rope.

7. The rotating bridge device according to claim 6, It is characterized in that The supporting member includes a plurality of pegs, one end of each of the pegs is connected to the surface of the protruding portion on the side away from the axis of the concrete turntable, and the plurality of pegs are arranged in a row at intervals along the circumference of the concrete turntable, and some of the outlet segments of the traction rope are supported on the upper circumferential surface of the pegs.

8. The rotating bridge device according to claim 6, It is characterized in that The traction rope guide device also includes a guide member, and the side of the embedded part away from the axis of the concrete turntable is connected to the guide member. The guide member and the embedded part are arranged to form a guide channel extending along the circumference of the concrete turntable. The traction rope is passed through the guide channel and extends along the circumference of the concrete turntable. The support plane of the guide member that supports the traction rope upward along the axial direction of the concrete turntable is the first support plane, and the support plane of the supporting member that supports the traction rope upward along the axial direction of the concrete turntable is the second support plane. The first support plane and the second support plane are located on the same plane.

9. The rotating bridge device according to claim 1, It is characterized in that The traction rope guide device also includes a fixing member, which is connected to the surface of the bearing plate on one side close to the axis of the concrete turntable, and the fixing member is buried in the concrete turntable.

10. The rotating bridge device according to claim 9, It is characterized in that The poured concrete can pass through the fixing member along the axial direction of the concrete rotating disk.

11. The rotating bridge device according to claim 9, It is characterized in that The fixing member comprises at least one fixing plate, and the fixing plate is provided with a plurality of through holes along the axial direction of the concrete rotating disk.

12. The rotating bridge device according to claim 9, It is characterized in that The fixing member comprises a plurality of fixing columns, one end of each of which is connected to a surface of the bearing plate on a side close to the axis of the concrete turntable and is arranged at intervals.

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