Cable take-up and pay-off guide device

Abstract

The utility model discloses a cable take-up and pay-off guide device which comprises a bottom plate, side plates and a movable top plate. The bottom plate is trumpet-shaped, and a closing opening and a flaring opening are formed in the two ends of the extending direction respectively. The closing opening is narrower than the flaring opening; the bottom plate gradually inclines or bends downwards from the position close to the closing opening to the flaring position. The two arc-shaped side plates are connected to the left side and the right side in the extending direction of the bottom plate in a sealed mode. The two side plates and the top of the bottom plate jointly form a saddle-shaped cable passing channel so as to position and guide a cable when the cable is wound and unwound. A support cavity is formed by the two side plates and the bottom of the bottom plate; a stiffening framework is fixedly connected to the side, back on to the cable passing channel, of the side plate. The stiffening framework is of a rigid structure formed by welding a plurality of steel plates in a staggered mode. The movable top plate is detachably connected to the tops of the stiffening frameworks on the two sides so as to be arranged above the cable passing channel in a crossing mode. The device can adapt to the cable which is supported at multiple angles, has the characteristics of high structural strength, convenience in mounting of the cable and the like, and facilitates positioning construction of offshore engineering.

Description

TECHNICAL FIELD

[0001] The utility model relates to offshore engineering construction technical field especially relates to a cable take-up and pay-off guide device. BACKGROUND

[0002] With the development of technology, offshore construction of suspension bridges or cable-stayed bridges has become a new trend. In offshore bridge construction projects, foundation construction is particularly important to ensure safety, applicability, economy and durability. Currently, offshore bridge anchorage foundations are mostly steel caissons, and the construction of steel caisson foundations often involves the precise positioning of the caisson.

[0003] The traditional caisson positioning and sinking cable system limits and adjusts the cable by installing a fixed pulley or a hole bracket on the caisson, and these two methods have many shortcomings:

[0004] The disadvantages of using a fixed pulley are: (1) when the cable is set at a large angle, it will not only come off the pulley groove during the take-up and pay-off process, but also may cause the fixed pulley to be overloaded and jammed; (2) the cable is under great stress when the caisson is positioned and sunk, especially when a strong wind or large instantaneous sea waves occur, the cable tension increases instantaneously, which may break the axle of the fixed pulley. The disadvantages of using a hole bracket are: (1) the hole size is fixed, so it is less suitable for large and medium diameter cables; (2) the edges of the hole in the bracket can cause wear and tear to the cable; (3) it cannot flexibly adapt to the setting angle of the cable; (4) the cable needs to be threaded through the end to enter or exit the hole, which is more troublesome.

[0005] Therefore, a cable take-up and pay-off guide device needs to be invented to avoid the above-mentioned defects, which can not only adapt to cables set at multiple angles, but also has the characteristics of high structural strength and easy installation of cables. CONTENT OF THE UTILITY MODEL

[0006] The main technical problem to be solved by the utility model is to provide a cable take-up and pay-off guide device that can adapt to cables set at multiple angles and has the characteristics of high structural strength and easy installation of cables.

[0007] To solve the above technical problems, the utility model provides a cable take-up and pay-off guide device, which comprises a bottom plate, a side plate and a movable top plate.

[0008] The bottom plate is trumpet-shaped, has a converging opening and an expanding opening at both ends of the extension direction respectively; the width of the converging opening is smaller than that of the expanding opening; the bottom plate gradually inclines or curves downward from the position close to the converging opening to the expanding opening.

[0009] Two arc-shaped side plates are sealed to the left and right sides of the base plate in the direction of extension; the two side plates and the top of the base plate together form a saddle-shaped cable passage to position and guide the cable during winding and unwinding; the two side plates and the bottom of the base plate form a support cavity.

[0010] The side plate is also fixedly connected to a stiffening frame on the side facing away from the cable passage; the stiffening frame is a rigid structure made of several steel plates welded in an alternating manner.

[0011] The movable top plate is detachably connected to the top of the two side stiffening frames to span over the cable passage.

[0012] In a preferred embodiment, the support cavity is filled with concrete.

[0013] In a preferred embodiment, the base plate is provided with grouting holes for filling concrete into the support cavity.

[0014] In a preferred embodiment, the stiffening frame includes vertical stiffening ribs and horizontal stiffening ribs;

[0015] The vertical stiffening ribs are welded perpendicularly to the side plate, and their bottoms are flush with the side plate; several vertical stiffening ribs are spaced apart along the horizontal extension direction of the side plate;

[0016] Several transverse stiffening ribs are arranged at intervals along the height direction of the side plate and welded to the vertical stiffening ribs in a "well" shape.

[0017] In a preferred embodiment, the stiffening frame further includes additional stiffening ribs; the additional stiffening ribs are vertically welded to the outer side of the vertical stiffening ribs along the height direction of the vertical stiffening ribs.

[0018] In a preferred embodiment, the maximum passage area enclosed by the movable top plate closest to the constriction, the bottom plate, and the side plate is less than the minimum cross-sectional area of ​​the cable knot.

[0019] In a preferred embodiment, the base plate is vertically aligned with the side edge of the side plate at the flared end.

[0020] In a preferred embodiment, the height of the base plate at the flared end is flush with the bottom of the side plate.

[0021] In a preferred embodiment, the movable top plate is detachably connected to the top of the stiffening frame via a bolt assembly.

[0022] In a preferred embodiment, the base plate and the side plate are made of 30mm thick steel plate.

[0023] Compared with the prior art, the technical scheme of the device has the following beneficial effects:

[0024] The device ingeniously constructs a horn-shaped cable passing channel through the arc-shaped bottom plate and the side wall, so that the device can adapt to the cable ropes set at multiple angles, and higher flexibility is created for the construction scheme design and on-site construction organization of the steel sinking well. Meanwhile, the horn-shaped structure reduces the friction between the cable passing channel and the cable rope, which not only reduces the required power of the anchor machine, but also greatly relieves the wear of the cable rope.

[0025] The device is filled with concrete in the support cavity, which can provide reliable vertical support for the bottom plate. The side plate is provided with the stiffened framework on the side away from the cable passing channel, and the stiffened framework has a small structural self-weight, which effectively supports the side plate. The two force transmission paths are simple and clear, reliable in connection, and greatly improve the carrying capacity and structural stability of the device.

[0026] The device is provided with the movable top plate to form a closed loop on the vertical plane of the cable passing channel, so as to limit the cable rope from flying out of the cable passing channel from the top during rapid lowering. The movable top plate and the wing plate are connected through bolts, so that the cable passing channel can be flexibly and quickly opened and closed, and the cable rope can be quickly placed into or taken out of the device. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a top view of the device in the embodiment one of the utility model;

[0028] Figure 2 It is a bottom view of the device in the embodiment one of the utility model;

[0029] Figure 3 It is a vertical plane view of the device at the flared part in the embodiment one of the utility model;

[0030] Figure 4 It is a vertical plane view of the device at the contracted part in the embodiment one of the utility model;

[0031] Figure 5 It is a three-dimensional view of the device in the embodiment two of the utility model.

[0032] In the drawing, 1 is a bottom plate, 11 is a contracted part, 12 is a flared part, 13 is a grouting hole, 2 is a side plate, 3 is a movable top plate, 4 is a cable passing channel, 5 is a support cavity, 6 is a stiffened framework, 61 is a vertical stiffened rib, 62 is a horizontal stiffened rib, 63 is an additional stiffened rib, 64 is a first vertical plate, and 65 is a second vertical plate. DETAILED DESCRIPTION

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0034] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved / connected", "connected", etc., should be interpreted broadly. For example, "connection" can be a wall-mounted connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0036] Example 1

[0037] like Figures 1-4 As shown, this embodiment of the invention provides a cable reeling and guiding device, fixed to the top edge of a steel caisson cofferdam. The device includes a base plate 1, side plates 2, and a movable top plate 3. Generally, the two side plates 2 are welded to both sides of the base plate 1, together forming a top-open, trumpet-shaped cable passage 4. The movable top plate 3 is perpendicular to the extending direction of the base plate 1 and is detachably connected to the top of the two side plates 2. The components of the device will be described in detail below with reference to the illustration.

[0038] like Figures 1-4As shown, the projection of the bottom plate 1 on the horizontal plane is trumpet-shaped. For the convenience of description, the end with smaller width in the extension direction is defined as the narrow end 11, and the end with larger width is defined as the wide end 12. The cross section of the bottom plate 1 along the center line comprises a circular arc, which gradually inclines or curves downward from the position close to the narrow end 11 to the wide end 12. In this embodiment, the bottom plate 1 curves downward in a circular arc shape. Two arc-shaped side plates 2 are tightly welded on the left and right sides of the extension direction of the bottom plate 1, and together with the top of the bottom plate 1, they form a saddle-shaped cable passing channel 4 for positioning and guiding the cable during winding and unwinding. In this embodiment, the height of the bottom plate 1 at the wide end 12 is flush with the bottom of the side plates 2, so that when the device is installed on the top of the steel caisson cofferdam, the bottom plate 1 can smoothly transition with the outer edge of the steel caisson cofferdam. For the cable passing channel 4, in the horizontal direction, the wide end 12 extends outward in a trumpet shape, and the larger guide angle greatly reduces the risk of the cable being stuck or damaged due to lateral scraping during winding and unwinding, so that the device can adapt to cables with multiple angles, which is of great significance to the design of the construction scheme of the steel caisson and the organization of the site construction. In the vertical view, the cable passing channel 4 curves downward in an arc shape and smoothly transitions with the outer edge of the steel caisson cofferdam at the wide end 12, which is beneficial to reducing the friction between the cable passing channel 4 and the cable, thereby reducing the power required by the winch and greatly reducing the wear and tear on the cable.

[0039] The two side plates 2 and the bottom of the bottom plate 1 together enclose a support cavity 5. The bottom plate 1 is provided with a clearance opening, which is referred to as a grouting hole 13 herein. When the device is installed on the top of the steel caisson cofferdam, the two side plates 2 and the bottom plate 1 are welded to the top plate of the steel caisson cofferdam, and then the support cavity 5 is filled with concrete slurry under the cooperation of the construction formwork through the grouting hole 13. When the concrete in the support cavity 5 reaches the strength, it can provide reliable vertical support for the bottom plate 1, thereby greatly improving the carrying capacity and structural stability of the device. As a simple alternative of this embodiment, in other embodiments, multiple steel plates can also be fixed vertically in the support cavity 5 to reinforce the structure.

[0040] When the cable in the cable passing channel 4 is wound or unwound at a large angle, it is close to one of the side plates 2, and an outward bending force is exerted on the side plate 2, which puts higher requirements on the structural rigidity of the side plate 2. As shown in the figure, the side plate 2 is provided with a reinforcing rib 21, which is arranged in the extension direction of the side plate 2 and is close to the bottom plate 1. The reinforcing rib 21 can effectively resist the outward bending force of the cable, thereby improving the structural rigidity of the side plate 2. Figures 1-4As shown, the device has a stiffening frame 6 on the side of the side plate 2 facing away from the cable passage 4. For ease of description, the side of the stiffening frame 6 closest to the side plate 2 is defined as the inner side, and the side furthest from the side plate 2 is defined as the outer side. The stiffening frame 6 includes vertical stiffening ribs 61 and horizontal stiffening ribs 62. Specifically, the inner side of the vertical stiffening ribs 61 is welded perpendicularly to the side plate 2, the bottom is flush with the side plate 2, and the top is welded perpendicularly to the wing plate. Several vertical stiffening ribs 61 are spaced apart along the horizontal extension direction of the side plate 2. Several horizontal stiffening ribs 62 are spaced apart along the height direction of the side plate 2 and welded to the vertical stiffening ribs 61 in a "well" shape. The inner side of the horizontal stiffening ribs 62 is welded perpendicularly to the side plate 2. In this embodiment, the stiffening frame 6 also includes additional stiffening ribs 63. The additional stiffening rib 63 is vertically welded to the outer side of the vertical stiffening rib 61 along the height direction, acting as a flange plate for the latter, further improving its lateral stability and vertical stiffness. When the device is installed on top of the steel caisson cofferdam, the bottoms of the vertical stiffening rib 61 and the additional stiffening rib 63 are welded to the top plate of the steel caisson cofferdam. When the side plate 2 is bent outward by the cable, the vertical stiffening rib 61 can transfer a portion of the force to the top plate of the steel caisson cofferdam; while the transverse stiffening rib 62 and the additional stiffening rib 63 act as a secondary frame, providing necessary lateral support for the vertical stiffening rib 61. The "well"-shaped main structure of the stiffening frame 6 evenly distributes external forces within the structure, requiring smaller dimensions for the constituent plates. Therefore, the stiffening frame 6 can effectively support the side plate 2 with a relatively small structural weight.

[0041] like Figures 3-4As shown, the highest one of the transverse stiffening plates is vertically welded to the top of the side plate 2. The two ends of the movable top plate 3 are detachably connected with the highest one of the transverse stiffening plates on both sides of the cable passing channel 4 through bolt assemblies, so as to be arranged above the cable passing channel 4. In the embodiment, the movable top plate 3 is perpendicular to the extension direction of the cable passing channel 4; the number of the movable top plate 3 is two, which are arranged in the extension direction of the cable passing channel 4 at intervals. In other embodiments, the number of the movable top plate 3 can be one, three or more; the movable top plate 3 can also be arranged above the cable passing channel 4 in a diagonal intersecting manner. The main purpose of arranging the movable top plate 3 is to form a closed loop in the vertical plane of the cable passing channel 4, so as to limit the cable from flying out of the cable passing channel 4 from the top during rapid lowering. The movable top plate 3 is connected with the wing plate through bolts, so that the cable passing channel 4 can be opened and closed flexibly and quickly, which facilitates the cable to be quickly put into or taken out of the device. Further, for the movable top plate 3 close to the closing opening 11, the distance to the closing opening 11 should not be too large, so as to ensure that the maximum passing area of the cable passing channel 4 on this side is smaller than the cable knot, so as to avoid the whole cable from sliding into the sea.

[0042] For the material of the device, in the embodiment, the bottom plate 1 and the side plate 2 as the main force members are processed by using a 30mm-thick steel plate. The other components of the device, such as the wing plate and the stiffening ribs of the stiffening framework 6, are processed by using a 20mm-thick steel plate.

[0043] In summary, the device is adapted to the cable arranged at multiple angles by constructing the trumpet-shaped cable passing channel 4, and the abrasion of the cable is also reduced. At the same time, the support cavity 5 and the stiffening framework 6 enable the device to have high bearing capacity and structural stability. In addition, the movable top plate 3 arranged above the top of the cable passing channel 4 provides stable transverse limiting for the cable, and the detachable connection facilitates the cable to be put into or taken out of the cable passing channel 4. Therefore, the device greatly facilitates the sinking positioning construction of the steel caisson foundation.

[0044] Embodiment Two

[0045] As shown in the drawings, Figure 5 The embodiment provides a cable winding and unwinding guide device, which is mainly different from the embodiment one in that the stiffening framework 6 is constructed differently.

[0046] Specifically, the stiffening frame 6 comprises a plurality of first vertical plates 64 and second vertical plates 65. The first vertical plates 64 and the second vertical plates 65 are welded perpendicularly in the horizontal plane projection direction, and are jointly configured into a structure similar to a "nine-square grid", so that the stiffening frame 6 has high structural rigidity and stability in each direction. The first vertical plates 64 and the second vertical plates 65 are welded to the side plates 2 at the inner side, so as to provide lateral support to the side plates 2. The stiffening frame 6 is flush with the bottom of the side plates 2. In particular, in the present embodiment, the top of the side plates 2 and the stiffening frame 6 is inclined downward by a length at one end close to the flared portion 12, which not only reduces the structural dead weight and steel plate material, but also facilitates construction observation.

[0047] Additionally, in the present embodiment, the number of the movable top plates 3 is one. The top of the stiffening frame 6 is provided with a horizontal plate surface, so as to be detachably connected with the movable top plate 3.

[0048] In addition to the above differences, the other parts of the device provided by the present embodiment are the same as those of the first embodiment, and will not be described herein.

[0049] The above only describes a preferred specific embodiment of the present application, and is not intended to limit the patent scope of the present application. Any equivalent transformation of the content of the present application description falls within the protection scope of the present application.

Claims

1. A cable launch and recovery guide, characterized by: The base plate, the side plate and the movable top plate; The base plate is trumpet-shaped, and has a narrow end and a wide end at two ends in the extending direction; the width of the narrow end is smaller than that of the wide end; the base plate gradually inclines or curves downward from the position close to the narrow end to the wide end; Two arc-shaped side plates are tightly connected to the left and right sides of the base plate in the extending direction; the two side plates and the top of the base plate jointly form a saddle-shaped cable passing channel to position and guide the cable when it is reeled in and out; the two side plates and the bottom of the base plate form a support cavity; The side plate is fixedly connected with a stiffened framework on the side away from the cable passing channel; the stiffened framework is a rigid structure formed by staggered welding of a plurality of steel plates; The movable top plate is detachably connected to the top of the stiffened framework on both sides to be arranged above the cable passing channel.

2. A cable launch and recovery guide as claimed in claim 1, characterised in that: The support cavity is filled with concrete.

3. A cable launch and recovery guide as claimed in claim 2, characterised in that: The base plate is provided with a grouting hole for filling the support cavity with concrete.

4. A cable launch and recovery guide as claimed in claim 1, wherein: The stiffened framework includes vertical stiffening ribs and horizontal stiffening ribs; The vertical stiffening ribs are vertically welded to the side plate on the side edges and are flush with the side plate on the bottom; a plurality of the vertical stiffening ribs are arranged at intervals along the horizontal extending direction of the side plate; A plurality of the horizontal stiffening ribs are arranged at intervals along the height direction of the side plate and are "H" shaped welded with the vertical stiffening ribs.

5. A cable launch and recovery guide as claimed in claim 4, characterised in that: The stiffened framework further includes additional stiffening ribs; the additional stiffening ribs are vertically welded to the outside of the vertical stiffening ribs along the height direction of the vertical stiffening ribs.

6. A cable launch and recovery guide as claimed in claim 1, characterised in that: The movable top plate closest to the narrow end encloses a maximum passing area with the base plate and the side plate, which is smaller than the minimum cross-sectional area of the cable knot.

7. A cable launch and recovery guide as claimed in claim 1, wherein: The side edge of the side plate is vertically aligned with the base plate at the wide end.

8. A cable launch and recovery guide as claimed in claim 1, wherein: The height of the base plate at the wide end is flush with the bottom of the side plate.

9. A cable launch and recovery guide as claimed in claim 1, wherein: The movable top plate is detachably connected to the top of the stiffened framework by a bolt assembly.

10. A cable launch and recovery guide according to any one of claims 1 to 9, characterised in that: The base plate and the side plate are made of 30mm thick steel plate.

Images